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Location: multiple locations Role Overview: At Cargoo we are building the infrastructure that makes Freight reliable and scalable. Real-time logistics systems, built in .NET. Problem space: Logistics operations today are still largely: manual reactive fragmented across tools incomplete / late data conflicting constraints real-time decision pressure evolving business rules legacy + new system coexistence We’re building a system that: ingests real-time operational data supports planning & execution decisions adapts to constantly changing constraints Design principles: keep things simple before scalable prefer explicit logic over magic abstractions optimize for change, not perfection avoid “framework-driven architecture” accept that some parts will be ugly — temporarily Tech stack: .NET Vue.JS service-oriented architecture relational + operational data storage cloud-based infrastructure What we expect from engineers: Ability to navigate uncertainty and work in ambiguity Willingness to challenge decisions Focus on outcomes, not just code Understanding of trade-offs and complex systems Preferring ownership over comfort What you wont find here : over-engineering everything upfront unnecessary microservices “clean architecture” for the sake of it process-heavy development If this resonates with you – lets talk! Send us: your LinkedIn / GitHub OR a short message explaining what you’ve built and why it matters

Location: München, Germany Unser Partner, ein IT-Dienstleistungsunternehmen, sucht einen Junior Java Entwickler (m/w/d). Über das Unternehmen: Werden Sie Teil eines führenden Unternehmens im Bereich digitaler Versicherungslösungen, das für innovative Technologien und nutzerfreundliche Services bekannt ist. Verantwortlichkeiten: Mitarbeit an der agilen Entwicklung von Softwarelösungen in einem unserer Entwicklerteams Entwicklung neuer Funktionen und Produkte in direkter Abstimmung mit dem Produktteam Weiterentwicklung sowie Mitgestaltung unserer automobilbezogenen Systeme Eigenverantwortliche Betreuung technischer und/oder inhaltlicher Aufgabenbereiche Nutzung Deiner aktuellen Programmierkenntnisse und der Wunsch, diese kontinuierlich auszubauen Das bringen Sie mit: Du hast ein Informatikstudium abgeschlossen oder eine vergleichbare Ausbildung, z. B. als Fachinformatiker*in für Anwendungsentwicklung, erfolgreich beendet. Idealerweise konntest Du bereits erste praktische Erfahrungen in der Java-Programmierung sammeln und hast eventuell schon mit dem Spring Framework gearbeitet. Grundkenntnisse in Bereichen wie Kubernetes, Docker, REST-Schnittstellen, Datenbankmanagement, Webentwicklung, Softwarearchitektur oder Tools wie Jenkins, Git und Gradle sind von Vorteil. Fließende Deutschkenntnisse (mindestens C1) Vorteile: Anspruchsvolle und abwechslungsreiche Tätigkeiten in einem modernen IT-Umfeld mit vielen Entwicklungsmöglichkeiten Individuelle Weiterbildungsmöglichkeiten und Karriereentwicklung Flexible Arbeitszeiten und hybrides Arbeitsmodell (vier Tage vor Ort, ein Tag remote) Attraktive Zusatzleistungen wie betriebliche Altersvorsorge, Zuschüsse zu Sportprogrammen und Jobrad-Leasing Kostenfreies Deutschlandticket für den öffentlichen Nahverkehr sowie tägliches kostenloses Mittagessen im Büro Relocation aus dem Ausland ist möglich. Wir kümmern uns um Ihr Visum, Aufenthaltstitel, Wohnungssuche etc. Auch Ihre Familienmitglieder (Ehepartner und Kinder unter 18 Jahren) erhalten ein Visum. Wenn Sie interessiert sind und glauben, die Anforderungen als Java Entwickler (m/w/d) zu erfüllen, freuen wir uns auf Ihre Bewerbung mit Ihrem Lebenslauf!

Location: Belgrade; London; Berlin Perplexity is looking for an Infrastructure Engineer to own and improve the backend systems behind our latency-sensitive search stack. You’ll work across high-QPS Rust and Go services, distributed retrieval systems, cloud infrastructure, observability, and deployment tooling. This role combines infrastructure expertise with software engineering. You’ll take systems from design through production operation and use AI-native tools where they meaningfully improve engineering and operational workflows Responsibilities - Build and operate scalable, low-latency infrastructure for search serving and retrieval. - Design and improve distributed backend systems that handle high request volumes. - Debug and optimize Linux systems, containers, networking, and production services. - Improve reliability through observability, capacity planning, performance profiling, and incident response. - Design, deploy, and operate cloud-native systems, primarily on AWS and Kubernetes. - Build internal tools and automation for development, testing, debugging, and infrastructure operations. - Improve CI/CD pipelines, release processes, and production rollout safety. - Contribute directly to product codebases across Rust, Go, and other systems languages. - Own systems end to end, from architecture and implementation to deployment and production operation. Requirements - Strong experience with cloud infrastructure, distributed systems, and automation. - Deep understanding of Linux internals, performance analysis, and production debugging. - Experience building or operating latency-sensitive, high-throughput backend systems. - Experience with containers, orchestration, observability, and infrastructure as code. - Experience building or maintaining CI/CD systems and release tooling. - Fluency in at least one systems language, such as Rust, Go, C++, or Java. - Comfort working across infrastructure and application-level code. - Strong ownership and the ability to operate effectively in a fast-moving environment. Nice To Have - Experience with search, retrieval, ranking, or other large-scale data-serving systems. - Experience operating Rust services in production. - Experience with AWS, Kubernetes, and modern observability systems. - Experience with profiling, capacity planning, and performance optimization. - Experience building AI-assisted developer or operational tooling.

Location: Belgrade; London; Berlin Perplexity is looking for an Infrastructure Engineer to own and improve the backend systems behind our latency-sensitive search stack. You’ll work across high-QPS Rust and Go services, distributed retrieval systems, cloud infrastructure, observability, and deployment tooling. This role combines infrastructure expertise with software engineering. You’ll take systems from design through production operation and use AI-native tools where they meaningfully improve engineering and operational workflows Responsibilities - Build and operate scalable, low-latency infrastructure for search serving and retrieval. - Design and improve distributed backend systems that handle high request volumes. - Debug and optimize Linux systems, containers, networking, and production services. - Improve reliability through observability, capacity planning, performance profiling, and incident response. - Design, deploy, and operate cloud-native systems, primarily on AWS and Kubernetes. - Build internal tools and automation for development, testing, debugging, and infrastructure operations. - Improve CI/CD pipelines, release processes, and production rollout safety. - Contribute directly to product codebases across Rust, Go, and other systems languages. - Own systems end to end, from architecture and implementation to deployment and production operation. Requirements - Strong experience with cloud infrastructure, distributed systems, and automation. - Deep understanding of Linux internals, performance analysis, and production debugging. - Experience building or operating latency-sensitive, high-throughput backend systems. - Experience with containers, orchestration, observability, and infrastructure as code. - Experience building or maintaining CI/CD systems and release tooling. - Fluency in at least one systems language, such as Rust, Go, C++, or Java. - Comfort working across infrastructure and application-level code. - Strong ownership and the ability to operate effectively in a fast-moving environment. Nice To Have - Experience with search, retrieval, ranking, or other large-scale data-serving systems. - Experience operating Rust services in production. - Experience with AWS, Kubernetes, and modern observability systems. - Experience with profiling, capacity planning, and performance optimization. - Experience building AI-assisted developer or operational tooling.

Location: United States Description MEMX is looking for a Software Engineer to join our core software development team. The Software Engineer will work on the design, development, and support of the MEMX Trading system software. This person will play a key role in serving our customers and our business by building new features for the US Equities and Options platform as well as providing secondary production support. MEMX currently has a U.S. presence in these states: California, Colorado, Connecticut, Delaware, Florida, Georgia, Illinois, Kansas, Maine, Maryland, Michigan, Nevada, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, & Utah. *If you live outside of the above states, please list in your application and our team will evaluate. What You'll Do Full Software Development Life Cycle participation for MEMX Trading Platform Low latency, high throughput, event-sourcing application development Assist Market and Technical Operations to resolve production issues Requirements B.S. in Computer Science 5+ years of Real-Time Server-Side JAVA software development experience Low latency, High Volume, High Throughput Linux production system development/support Experience Experience in the development of US Equities, Options, or Futures asset classes Experience developing low latency trading systems Strong professional and interpersonal skills including exceptional customer service, creative problem solving, and effective written and verbal communications, Broad systems thinking – understands the connections and relationships across functions and entities for both internal and external constituencies Ideal candidate will have demonstrated ability to succeed as a self-starter in a dynamic, remote-first environment Working experience in the following areas is a plus: Clearing and Settlement/Back Office processes Event Sourcing design pattern application development Time Series Databases TCP/IP UDP networking FIX messaging GIT/Gradle/Junit/Jira/Confluence/Jenkins/Wireshark Benefits At MEMX you will have the ability to work with a talented team of professionals who bring diversity of thought and background. You will have the opportunity to shape the future of our company and the impact MEMX will have on our clients and the broader markets. We offer competitive employee benefits and perks and will continue to make this a priority to attract the best. Work From Home Health Care Plan (Medical, Dental & Vision) Retirement Plan (401k) Life Insurance (Basic, Voluntary & AD&D) Unlimited Paid Time Off Generous Paid Family Leave Short Term & Long-Term Disability Training & Development Wellness Resources Pay Range: $150,000 – $250,000 USD *Pay ranges are a general guideline only and not a guarantee of compensation. Compensation may vary depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Equal Opportunity Statement MEMX is an equal opportunity employer. We are committed to creating a diverse and inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Diversity Inclusion Statement At MEMX, we believe that diversity and inclusion are essential to driving innovation and success. We welcome and celebrate individuals from all backgrounds and perspectives, and we strive to create an inclusive culture where everyone can thrive.

Location: San Francisco, CA; Boston, MA Workplace: OnSite ABOUT US At LangChain, our mission is to enable every company to own its intelligence. We believe agents will transform how companies operate, and we're building the foundation to make that future possible. Our open-source harnesses and LangSmith platform give developers and enterprises the infrastructure to run, improve, and govern agents at scale. We've raised $460M to date, with our most recent funding round valuing the company at $3B, backed by leading investors including Sequoia, Benchmark, IVP, and CapitalG. As we continue to expand our platform and tackle some of the hardest challenges in agent engineering, every team member has the opportunity to make a meaningful impact and help shape both our technology and the future of the industry. More than 7,000 organizations rely on LangSmith, from fast-growing startups to Fortune 500 enterprises, including NVIDIA, Bridgewater, LinkedIn, Workday, and Rippling. We're just getting started on making high-performing agents easier to build and manage at scale. About the Team The Python Open Source team maintains and evolves the core LangChain Python ecosystem used by millions of developers worldwide. We focus on building reliable, well-designed abstractions for developing AI agents and integrating them with real-world tools and systems. The team works closely with the open-source community, incorporating feedback and contributions while ensuring the core libraries remain stable, scalable, and production-ready. Our work defines the developer experience for building AI applications with Python. About the role In person 5 days/week in San Francisco, CA or Boston, MA (SF preferred) We’re looking to add a core maintainer to the LangChain team. This person would be responsible for maintaining and improving the LangChain Python package. - Improving the core abstractions and runtime of the langchain and langgraph packages - Improving documentation https://python.langchain.com/docs/integrations/providers/ - Answering user questions and resolving issues - Use langchain to build example applications What You'll Do - Improve the core abstractions and runtime of the LangChain and LangGraph packages - Improve documentation across the LangChain ecosystem - Answer user questions and resolve issues from the community - Use LangChain to build example applications that demonstrate how to build production AI systems What You'll Bring - 5+ years of software engineering or applied machine learning experience - Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders - The ability to thrive in a fast-moving environment and view unstructured environments as an opportunity to identify impactful work and define the future success of the company - An ownership-minded approach to work, with the ability to manage your work efficiently and effectively without the need for close supervision Compensation - Annual salary range: $150,000- $250,000 COMPENSATION PHILOSOPHY: We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. We are hiring for this role across a range of scope, and the compensation band reflects that. Your offer depends on what we learn about your impact, craft, leadership, and communication during the interview process. We will tell you early where you’re tracking and talk comp with you before offer stage. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations. BENEFITS Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.

Location: Ukraine; Poland; Georgia; Armenia; Moldova, Republic of Intetics Inc., a leading global technology company providing custom software application development, distributed professional teams, software product quality assessment, and “all-things-digital” solutions, is looking for a Senior/Lead Node.js Developer to enrich its team with a skilled professional to spread the company’s ideas, vision, content, and messages. Our client creates digital toys and other playful products for kids around the world. Since the first product launch in 2011, they have released 40+ apps that have been downloaded more than 444 million times in 238 markets, making them the No. 1 mobile-first kids brand in the App Store. Requirements - Great gaming development history - Experience with JavaScript - Extensive experience with Node.js - Knowledge of AWS microservices Responsibilities: - New features development - Development of matchmaking service - Working on the identity service

Location: Ukraine; Poland; Georgia; Armenia; Moldova, Republic of Intetics, a leading global technology company providing custom software application development, distributed professional teams, software product quality assessment, and “all-things-digital” solutions, is looking for a Senior Java developer to enrich its team with a skilled professional to spread the company’s ideas, vision, content, and messages. Connected Car, Autonomous Self-Driving Vehicle technologies, IoT, Embedded Application Development, Internet Radio and Mobile Apps are just some of the cool things we work on here at Abalta Technologies. We are pioneers in the navigation and mapping industry and have worked with over 60 global name brands since our inception. We are looking for a passionate, ambitious software engineer who is able to take responsibility for the backend of our product and is able to select the right technologies and tools to build the solution within our set of core technologies. If you are able to turn those into a working solution for the client we invite you to join our team. We are looking for Java Developers to join our growing team to work on digital map projects. Primary Responsibilities: Have a BS or MS in CS, CE, or EE 5+ years work experience with Java programming Have excellent written and verbal communication skills Be self-motivated. Must be able to anticipate problems, spot opportunities and take a proactive approach to responsibilities Be motivated to continue to learn new skills Have strong interpersonal skills to facilitate working within a team and with the customer Requirements Software subsystem design and implementation Attend code and design reviews Interact with customers Help drive the technical direction of the engineering group in the following areas: Coding standards and guidelines Agile/Scrum methodology Provide assistance to other engineers in a constructive manner that will promote productivity One or more of the following additional skills are highly desired: Experience with HERE OLP, OLP API Experience with Python Experience with GIS Experience with GPS and mapping APIs Experience with Agile/Scrum development methodology Experience with AWS

Location: Ukraine; Poland; Georgia; Armenia; Moldova, Republic of Description Intetics, a leading global technology company providing custom software application development, distributed professional teams, software product quality assessment, and “all-things-digital” solutions, is looking for a Senior Golang Developer to enrich its team with a skilled professional who will help drive innovation and deliver cutting-edge solutions. We specialize in high-performance backend development, cloud-native applications, distributed systems, and scalable microservices architectures . Our projects span across various industries, including IoT, cloud computing, fintech, AI-driven solutions, and real-time data processing . We are looking for a passionate and ambitious Golang engineer who can take ownership of backend development, selecting the right technologies and tools to build robust and scalable solutions. If you thrive in an innovative environment and can transform ideas into working solutions, we invite you to join our team. We are seeking Senior Golang Developers to contribute to our growing team and work on complex, high-load backend systems. Primary Responsibilities: Develop, optimize, and maintain scalable, high-performance backend applications using Golang . Design and implement microservices-based architectures and cloud-native solutions. Ensure code quality, scalability, and maintainability through best development practices. Participate in code reviews, design discussions, and architecture decisions . Work closely with cross-functional teams to design and deliver high-impact solutions. Troubleshoot and optimize existing systems for performance, security, and reliability . Contribute to technical documentation and knowledge-sharing within the team. Apply for this job Requirements Requirements: 5+ years of experience in software development, with a strong focus on Golang . Solid understanding of concurrent programming, distributed systems, and microservices . Experience working with RESTful APIs and gRPC . Familiarity with SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB). Hands-on experience with Docker, Kubernetes, and cloud platforms (AWS, GCP, or Azure). Knowledge of CI/CD pipelines, automated testing, and DevOps practices . Strong problem-solving skills and the ability to work independently. Excellent communication and teamwork skills. Nice to Have: Experience with message brokers (Kafka, RabbitMQ, NATS). Understanding of GraphQL, WebSockets, and streaming architectures . Experience in AI/ML, IoT, or blockchain-related projects . Familiarity with security best practices in backend development. Prior experience working in Agile/Scrum development environments .

Location: Ukraine; Poland; Armenia; Georgia; Moldova Intetics Inc., a leading global technology company providing custom software application development, distributed professional teams, software product quality assessment, and “all-things-digital” solutions, is looking for Senior .Net Engineer to enrich its team with a skilled professional to spread company’s ideas, vision, content and messages. Responsibilities: Develop and maintain a high-performance image processing system capable of processing up to terabytes of 3D images and raster images per day. Availability 24/7 Implement algorithms and techniques to efficiently process and analyze images, including image segmentation, feature extraction, and object recognition Develop tools and applications (back-end) to visualize and manipulate 3D images and point cloud data Optimize processing speed and memory usage for maximum efficiency Implement database management solutions to store and retrieve image data efficiently Implement integration with embedded devices via gRPC protocol. Collaborate with other team members, including microscope hardware engineers, to ensure seamless integration of the image processing system with the overall workflow. Requirements Technical Skills: Extensive experience in C# programming language (.NET/.NET Core) Strong understanding of performance optimization, image processing algorithms and techniques Experience with raster image processing and manipulation Familiarity with image file formats, including TIFF, JPEG, and PNG Knowledge of multithreading and parallel processing Experience with SQL and large storage database management (MS SQL or PostgreSQL) Libraries Experience: Familiarity with .NET libraries, such as ADO.NET, Entity Framework, or Dapper Familiarity with gRPC protocol. Nice to have: experience with image processing libraries, such as OpenCV, EmguCV, or ImageMagick. Nice to have: experience with healthcare image processing in general, or Zeiss CZI in particular.

Location: Riyadh, Saudi Arabia Müller's Solutions is looking for a talented Java Back-End Developer to join our innovative team. In this role, you will be responsible for designing, developing, and maintaining back-end systems that power our applications. You will work collaboratively with front-end developers, product owners, and other stakeholders to build robust and scalable services that meet user needs and enhance overall system performance. Key Responsibilities: Design and implement scalable and high-performance server-side applications using Java and related technologies. Develop RESTful APIs and microservices to facilitate interaction with front-end components. Collaborate with cross-functional teams to gather requirements and design solutions that meet business goals. Write clean, well-organized, and maintainable code, following best practices and coding standards. Participate in code reviews, offering constructive feedback and sharing knowledge with peers. Troubleshoot and resolve performance issues and bugs in production systems. Stay updated with emerging technologies and industry trends and apply them as necessary. Requirements Requirements: Bachelor's degree in Computer Science, Software Engineering, or relevant experience. Proven experience as a Java Back-End Developer, with extensive knowledge of Java, Spring Framework, and Hibernate. Banking experience. Strong understanding of RESTful APIs and microservices architecture. Experience with relational databases (SQL Server, MySQL, or PostgreSQL) and writing complex queries. Familiarity with cloud services (e.g., AWS, Azure) and containerization technologies (like Docker). Experience using version control systems, preferably Git. Ability to write unit tests and understand the importance of test-driven development. Excellent problem-solving skills and attention to detail. Strong communication and collaboration skills to work effectively in a team environment. Additional Qualifications: 4+ years of experience in back-end development with Java technologies. Familiarity with CI/CD pipelines and tools like Jenkins or GitLab CI. Experience with messaging systems like RabbitMQ or Kafka. Knowledge of API documentation tools such as Swagger or Postman. Soft Skills: Strong analytical and critical thinking abilities. Ability to work independently as well as collaborate with team members. Effective time management skills and ability to handle multiple tasks. Benefits Why Join Us: Opportunity to work with a talented and passionate team. Competitive salary and benefits package. Exciting projects and innovative work environment.

Location: Georgia; Poland; Singapore; Sri Lanka; Sweden; United Kingdom; Uzbekistan Description MEMX is looking for a Software Engineer to join our core software development team. The Software Engineer will work on the design, development, and support of the MEMX trading system software with an emphasis on the production support of the MEMX trading system software. This person will be part of a team that will be primary support during US evening hours for our Equities and Options platforms and our Market Tech customers. This role will be covering the US evening shift of 10PM – 6AM EST What You'll Do Full Software Development Life Cycle participation for MEMX Trading Platform Low latency, high throughput, event-sourcing application development Resolving production software issues Requirements B.S. in Computer Science 6+ years of Real-Time Server-Side JAVA software development experience Independent with ability to multi-task and cover different systems Experience in the development of US Equities, Options, or Futures asset classes Low latency, High Volume, High Throughput Linux production system development/support experience Experience developing low latency trading systems Strong professional and interpersonal skills including exceptional customer service, creative problem solving, and effective written and verbal communications Broad systems thinking – understands the connections and relationships across functions and entities for both internal and external constituencies Ideal candidate will have demonstrated ability to succeed as a self-starter in a dynamic, remote-first environment Working experience in the following areas is a plus: Clearing and Settlement/Back Office processes Event Sourcing design pattern application development Time Series Databases (i.e., Deephaven) TCP/IP UDP networking FIX messaging GIT/Gradle/Junit/Jira/Confluence/Jenkins/Wireshark Benefits At MEMX you will have the ability to work with a talented team of professionals who bring diversity of thought and background. You will have the opportunity to shape the future of our company and the impact MEMX will have on our clients and the broader markets. We offer competitive employee benefits and perks and will continue to make this a priority to attract the best. Work From Home Training & Development Wellness Resources Additional benefits offered associated with the specific region employee resides Pay Range: Competitive salary based on local market data Equal Opportunity Statement MEMX is an equal opportunity employer. We are committed to creating a diverse and inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Diversity Inclusion Statement At MEMX, we believe that diversity and inclusion are essential to driving innovation and success. We welcome and celebrate individuals from all backgrounds and perspectives, and we strive to create an inclusive culture where everyone can thrive.

Location: USA Workplace: remote Jito Labs is architecting the future of high-performance distributed systems on Solana. We're the team behind Jito-Solana, the leading MEV Solana client, and the Jito Block Engine, which has revolutionized block building on Solana. Today, Jito-Solana currently runs on 90% of stake and 1,100 validators, producing an additional $370M of revenue for stakers and validators on the network. Our team culture emphasizes: Teamwork: Our collaborative team fosters respect, trust, open communication, and support that enables us to achieve our goals together. Everyone’s voice matters here, and everyone contributes to our shared vision. Excellence: We uphold a strong work ethic, taking pride in our efforts and striving for excellence in everything we do. Innovation: We’re constantly evolving so stay curious, embrace change, and feel empowered to contribute new ideas. Autonomy: We trust our employees to take ownership of their work, encourage independent thinking and decision-making to foster growth, and drive their projects forward while providing them the support they need. Your Dream Position: At Jito Labs we’re always looking for innovative ways to expand our team and bring in fresh perspectives. As part of our ongoing commitment to creativity and growth, we’re offering you a unique opportunity: the chance to create your dream role within our organization! Rather than applying for a predefined position, we invite you to propose a role that aligns with both your strengths and the evolving needs of our company.  Whether you’re interested in a new area of focus or want to blend multiple disciplines, we’re open to ideas that can help us move forward and achieve our goals. Here's How it Works: Think about your skills, experiences, and passions – what value could you bring to Jito Labs that we may not have thought of yet? Outline the role – describe your proposed position, including key responsibilities, goals, and how it will contribute to our mission. Submit your proposal – send us a brief summary of your vision for this role. Feel free to include any relevant examples or ideas on how you plan to make an impact. We're excited about the possibility of working with someone as forward-thinking as you and would love to hear how you envision a potential role at Jito Labs! Comprehensive compensation package.

Location: Tallinn, Estonia As a Back-End Developer (.NET) at Müller's Solutions, you will be integral in the development of high-quality back-end systems that power our applications. You will work with a talented team to design robust APIs and services, ensuring that our software is efficient, scalable, and secure. Your expertise in .NET technologies will be key as we push the boundaries of our solutions and deliver value to our users. Key Responsibilities: Develop and maintain server-side applications using .NET technologies. Create and manage APIs to enable seamless integration with front-end components. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable code and conduct code reviews with peers. Identify and resolve performance bottlenecks and security issues. Stay updated on industry trends and incorporate best practices into our development process. Design and implement APIs for integration with front-end and mobile applications. Work on database design, development, and optimization for performance. Collaborate with front-end developers to ensure seamless user experiences. Implement security protocols to protect application data and services. Monitor server performance and troubleshoot application issues. Participate in the complete software development lifecycle (SDLC). Requirements Requirements: Degree in Computer Science, Software Engineering, or a related field. Demonstrated experience as a Back-End Developer, particularly with .NET (C#, ASP.NET, .NET Core). Solid understanding of RESTful services and API integration. Experience with databases such as SQL Server, including writing complex queries and stored procedures. Familiarity with cloud platforms (Azure or AWS) and containerization technologies (Docker). Knowledge of version control systems, preferably Git. Ability to develop unit tests and understand the importance of test-driven development. Strong debugging and problem-solving skills. Excellent communication skills and ability to work in a collaborative team environment. Preferred Qualifications: 4+ years of solid experience in back-end development with .NET technologies. Experience with microservices architecture. Familiarity with continuous integration and deployment tools like Jenkins or Azure DevOps. Bachelor’s degree in Computer Science or related discipline. technologies like ASP.NET Core, C#, and Web APIs. Strong database skills in SQL Server or PostgreSQL, including complex queries, indexing, and stored procedures. containerization (Docker), and cloud platforms (Azure, AWS). Experience with CI/CD tools like Jenkins or Azure DevOps. Soft Skills: Detail-oriented with a passion for code quality. Strong organizational and task management skills. Ability to work independently and collaboratively within a team.

Location: Cairo, Egypt Join our team at Müller's Solutions as a Back-End Developer (.NET) and play a crucial role in building and maintaining robust server-side applications. You will be responsible for developing high-quality back-end systems that support our front-end applications. Collaborating with cross-functional teams, you will design, implement, and deploy scalable web services that enhance the functionality of our products. Responsibilities: Design, develop, and maintain back-end services and APIs using .NET technologies. Ensure the performance, scalability, and security of applications through well-structured code and design. Collaborate with front-end developers to integrate user-facing components with server-side logic. Write clean, scalable, and reusable code, following best practices and coding standards. Participate in code reviews to maintain code quality and share knowledge with team members. Troubleshoot and resolve issues related to server-side applications and services. Continuously learn and apply new technologies to enhance product performance and user experience. Requirements Requirements: Bachelor's degree in Computer Science, Software Engineering, or a related field. Proven experience as a Back-End Developer, with hands-on experience in .NET technologies (C#, ASP.NET, .NET Core). Strong understanding of RESTful architecture and API development. Experience with relational databases (such as SQL Server, MySQL) and ORM frameworks (like Entity Framework). Knowledge of cloud services (e.g., Azure, AWS) and deploying applications in cloud environments is a plus. Familiarity with version control systems, especially Git. Ability to write unit and integration tests to ensure code quality. Excellent problem-solving and analytical skills. Strong communication and collaboration abilities to work in a team environment Qualifications: BA bachelor’s degree in Computer Science or a related field. Proficiency in stored procedures. Experience with microservices architecture, containerization technologies such as Docker, and cloud platforms including Azure and AWS. Familiarity with CI/CD tools like Jenkins or Azure DevOps practices. At least 4 years of practical experience with .NET technologies, including ASP.NET Core, C#, and Web APIs. Strong skills in database management with SQL Server or PostgreSQL, focusing on complex queries and indexing. Soft Skills: Excellent attention to detail and focus on code quality. Ability to work both independently and as part of a team. Strong organizational skills to manage multiple tasks efficiently.

Location: Global Anywhere Who We Are: Alpaca is a US-headquartered, global leader in agent-first brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more. Amongst our subsidiaries, Alpaca is a licensed financial services company, serving hundreds of financial institutions across 40 countries with our institutional-grade APIs. This includes broker-dealers, investment advisors, wealth managers, hedge funds, and crypto exchanges, totalling over 10 million brokerage accounts. Our global team is a diverse group of experienced engineers, traders, and brokerage professionals who are working to achieve our mission of opening financial services to everyone on the planet. We're deeply committed to open-source contributions and fostering a vibrant community, continuously enhancing our award-winning, developer-friendly API and the robust infrastructure behind it. Alpaca is proudly backed by $400 million in funding from top-tier global investors including Portage Ventures, Spark Capital, Tribe Capital, Social Leverage, Horizons Ventures, Opera Tech Ventures, SBI Group, Derayah Financial, Unbound, Peak XV, Elefund, and Y Combinator. Our Team Members: We're a dynamic team of 400+ globally distributed members who thrive working from our favorite places around the world, with teammates spanning the USA, Canada, Japan, Hungary, Nigeria, Brazil, the UK, and beyond! We're searching for passionate individuals eager to contribute to Alpaca's rapid growth. If you align with our core values—Stay Curious, Have Empathy, and Be Accountable—and are ready to make a significant impact, we encourage you to apply. Your Role: As a Senior Engineer, you will be responsible for designing, implementing, and maintaining the systems and services that form the foundation of Alpaca and empower millions of users who are trading billions of dollars worth of assets. The Ledger Team is responsible for building a modern ledger system, whose purpose is to maintain a complete and correct view of everything that has ever happened in every account. From a business perspective, the ledger provides a structured and organized system for recording and aggregating transactional data. It plays a crucial role in supporting financial reporting, decision-making, and compliance. From an engineering perspective, the ledger serves as the source of truth for many services in the Alpaca ecosystem. For this role, we are seeking an experienced engineer who is obsessed with delivering defect-free solutions, has proven experience architecting and building at scale, and who is not afraid of challenging conventions or voicing their opinions. In this role, you will have the autonomy to design and implement solutions to achieve defined goals while actively participating in defining those goals in cooperation with a cross-functional team. Things You Get To Do: Collaborate with internal stakeholders–including finance, operations, and product teams–to deliver high-impact features/projects Build backend systems/components with integrity, maintainability, scalability, and stability in mind Own the delivery of high-visibility features/projects, from design to deployment Collaborate with engineering teams to improve the health of Alpaca’s systems Who You Are (Must-Haves): A seasoned engineer with 5+ years of experience working on systems at scale Obsessed with performant, defect-free, maintainable code A strong problem solver with a proactive mindset A collaborator who is capable of creating alignment with technical and non-technical stakeholders alike Comfortable working heads-down or tag-teaming problems Strong coding skills, preferably in Go Ability to debug issues or, better yet, foresee problems and avoid them entirely Experience with IDLs (e.g., protobuf), RPC frameworks (e.g., gRPC), cloud platforms (e.g., GCP), and relational databases (e.g., PostgreSQL) Who You Might Be ( Nice-to-Haves): Experience in the financial services or accounting industry Experience with distributed systems/databases Experience with event-driven systems and messaging brokers (e.g., Redpanda) Experience working remotely Experience working at a startup How We Take Care of You: Competitive Salary & Stock Options Health Benefits New Hire Home-Office Setup: One-time USD $500 Monthly Stipend: USD $150 per month via a Brex Card Alpaca is proud to be an equal opportunity workplace dedicated to pursuing and hiring a diverse workforce. Recruitment Privacy Policy

Location: Ho Chi Minh, Vietnam; Hà Nội, Vietnam Workplace: remote About TechBiz Global TechBiz Global is a leading recruitment and software development company. Our diverse, globally distributed team provides IT recruitment, outstaffing, outsourcing, software development, and different consulting services with a primary focus on making our partners achieve their business goals successfully. With headquarters in Germany we have successful clients all over the world. We can understand your unique needs. Our team has hands-on experience with the challenges that come with rapid growth and the IT sector. That’s why all of our offerings are built with a tech mindset. About the Role: We are seeking an experienced and versatile Senior Software Engineer to join our innovative and dynamic team. This position offers a unique opportunity to design and develop cutting-edge AI-powered solutions, while also playing a key role in building software architectures and mobile applications. Key Responsibilities : AI and Software Development : Design, build, and deploy scalable AI models and software solutions, combining both machine learning/deep learning expertise and general software engineering best practices. Architecture Design : Lead the design and implementation of software architectures that can support AI-driven applications, ensuring scalability, reliability, and performance. Mobile App Development : Develop mobile applications (iOS/Android) that integrate seamlessly with backend AI systems and offer exceptional user experiences. Cross-functional Collaboration : Work closely with product managers, data scientists, and other engineers to define, develop, and ship software that meets business and technical requirements. Code Quality & Documentation : Write clean, maintainable, and well-documented code, ensuring high-quality deliverables and easy integration into the larger system. Research & Innovation : Stay current with the latest advancements in AI, software engineering, mobile development, and architecture patterns, proposing new tools, technologies, and techniques to continuously improve product performance. Key Requirements : Experience : At least 7 years of professional software engineering experience, with a proven track record of successfully delivering complex systems. AI/ML Expertise : Strong background in machine learning and deep learning with hands-on experience building and deploying models (e.g., using TensorFlow, PyTorch). Python Development : Proficiency in Python programming, particularly for AI/ML applications and system integration. Architecture Design : Extensive experience in designing and developing scalable and maintainable software architectures. Familiarity with microservices and cloud-based architectures is a plus. Mobile App Development : Solid experience in developing mobile applications (native iOS and/or Android), integrating backend systems with frontend apps, and optimizing for performance. Problem-Solving : Exceptional analytical and problem-solving abilities, with a passion for developing solutions to complex technical challenges. Collaboration : Strong communication skills and the ability to work effectively in a collaborative, remote team environment, with a focus on delivering high-quality solutions. Tools & Technologies : Familiarity with cloud platforms (AWS, GCP, or Azure), containerization (Docker, Kubernetes), and version control (Git). Experience with mobile frameworks (React Native, Swift, Kotlin) is a plus.

Location: New York; San Francisco Workplace: OnSite ABOUT US: AI NEEDS A NEW INFRASTRUCTURE LAYER. WE'RE BUILDING IT AT MODAL. Every era of computing brought new workloads that previous infrastructure couldn't support: mainframes, databases, and the cloud. Each time, the company that rebuilt the layer underneath defined the decade. AI is no different, except it touches everything instead of one slice, and the window to build the layer underneath it is open right now. Our customers include category-defining companies like Ramp https://modal.com/blog/how-ramp-built-a-full-context-background-coding-agent-on-modal, Cognition, DoorDash, and Suno. They rely on Modal for instant GPU access, sub-second container starts, and native storage, so it's simple to serve low-latency inference, fine-tune models, and access production-ready sandboxes at scale. We've passed $1B in annualized run rate, up 15x from a year ago. In October 2026 we raised a $750M Series D led by Accel at a $15.75B valuation. Our team includes creators of popular open-source projects (e.g.,Seaborn https://github.com/mwaskom/seaborn,Luigi https://github.com/spotify/luigi), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience. THE ROLE: We are looking for strong engineers with experience and interest in designing, building, and maintaining the novel, high-performance systems that make up our serverless platform. YOU MAY BE A FIT IF: - You have 5+ years of experience writing high-quality production code - You’ve built high-performance distributed systems at a large scale (the more battle scars, the better) - You have strong cloud skills - You have strong knowledge of low-level operating system foundations (Linux kernel, file systems, containers, etc.) - You have experience with performance engineering (tell us a story of when you shaved off a few milliseconds!) - You’re able to work in person in our NYC or SF office - You’re able to participate in our on-call rotation and respond to production incidents NICE-TO-HAVE: - Prior experience with Rust