Location: Remote
Data Scientist (Senior Staff, Staff, & Senior roles available)
About the company
In the coming decades, demand for critical minerals such as copper, lithium, and cobalt will continue to grow. These minerals are needed to build electric infrastructure, vehicles, data centers, and electronics. However, the mining industry is making 10x fewer discoveries per dollar spent on exploration compared to 30 years ago because the easy-to-find, near surface deposits have largely been discovered.
KoBold was founded to be the first AI native mineral exploration, mine development, and technology development company. Our goal is to turn mineral exploration into a repeatable science to discover the minerals the world needs—by integrating artificial intelligence, human intelligence, and new technology. Our multidisciplinary teams of data scientists, engineers, and geologists work together to build data systems, design new sensors, and establish industry-leading workflows to develop and test subsurface predictions on our exploration projects.
Our first discovery, Mingomba, is a high-grade copper deposit in Zambia, found after spending materially less than industry average. We are developing Mingomba with the same technical rigor that we apply to exploration. The Mingomba team brings together mine and processing engineers, geologists, data scientists, software engineers, and community, health & safety, construction, and operations specialists. By combining industry knowledge and cutting edge technology, we are developing Mingomba into a world class project that has safer and more predictable outcomes for ourselves, partners, and communities. It is expected to create thousands of good jobs for generations.
KoBold runs exploration programs in eight countries, all with the potential for another discovery.
KoBold is privately held; investors include institutional asset managers T. Rowe Price and Canada Pension Plan Investments; technology venture capitalists Andreessen Horowitz, Breakthrough Energy Ventures, BOND Capital, Durable Capital, StepStone, and Standard Investments; and strategic natural resources companies BHP and Mitsubishi.
We are hiring a Data Scientists to help accelerate our mission.
About the position
In this role, you will build predictive models and apply a wide range of scientific computing, statistical, and physics-based methods to find places where there is evidence of ore-forming processes at work and to predict the locations of ore-grade mineralization in 2D and 3D. You will help build a worldwide dataset that underlies our exploration program, with careful attention to identifying and quantifying uncertainty in the data and in our predictions. You will create models and develop software to accelerate discovery of critical battery metals.
You will join an outstanding team of data scientists and engineers and will work closely with KoBold’s world-renowned geoscientists to incorporate our best understanding of the chemical and physical processes that create ore deposits. Working with your geoscience colleagues, you will create 2D and 3D geologic predictions, identify exploration targets, design field programs to collect data, and use that data to reduce the uncertainty in our predictions and guide the next phase of field work.
Ultimately, your role is to help KoBold make valuable discoveries by building data tools to solve scientific problems. As one of the early members of this team, you will help build these tools from the ground up.
Responsibilities
The Data Scientist will:
Help develop KoBold’s proprietary software exploration tools.
Find and curate geophysical, geochemical, geologic, and geographic data and integrate it into KoBold’s proprietary data system.
Build models to make statistically valid predictions about the locations of compositional anomalies within the Earth’s crust.
Create effective visualizations for evaluating model performance and enabling rapid interaction with the underlying data and key features.
Develop and apply data processing, statistical, and physics-based techniques to geoscientific data — from computer vision to geophysical inversions — and use the results to guide our targeting efforts and inform our acquisition and exploration decisions.
Present to and collaborate with our external partners and stakeholders.
Qualifications
A great Data Scientist candidate will have:
Technical skills, including extensive experience with:
Python’s data science packages and general software engineering practices.
Collaborative software development (git), and familiarity with software engineering best practices like unit test / integration test suites, and CICD pipelines.
Cloud computing resources.
Building predictive models, applying them to different problems, and evaluating and interpreting the results.
Data from a variety of physical systems.
Geospatial analyses and visualizations.
Technical knowledge:
Broad skills in and knowledge of applied statistics and Bayesian inference
Substantial understanding of machine learning algorithms
Training and work experience:
An advanced degree in the physical sciences, engineering, computer science, or mathematics.
A minimum work experience of 4 years post PhD or 8 years post MS, ideally as a data scientist or data engineer.
Experience leading technical teams to apply novel scientific approaches to core business problems
Work practices and motivation:
Ability to take ownership and responsibility of large projects.
Ability to explain technical problems to and collaborate on solutions with domain experts.
Communicates well on a collaborative, cross-functional team.
Excitement about joining a fast-growing early-stage company, comfort with a dynamic work environment, and eagerness to take on a range of responsibilities.
Ability to independently prioritize multiple tasks effectively.
Intellectual curiosity and eagerness to learn about all aspects of mineral exploration, particularly in the geology domain.
Enjoys constantly learning such that you are driving insights through using our tools in exploration and willing to work directly with geologists in the field.
Keen not just to build cool technology, but to figure out what technical product to build to best achieve the business objectives of the company.
A valid passport and willingness to travel to observe our work at Mingomba or at an exploration site around the world.
It is also helpful but not required to have experience with:
Creating machine learning models on geospatial data
Geostatistics
Image processing or computer vision
Distributed computing applications for machine learning and other computations
What to Expect
Joining KoBold means getting the opportunity for hands-on exposure to our exploration projects around the world. All employees are expected to travel to project sites, with a minimum of one week per year. Field-facing and technical roles spend significantly more time in the field.
KoBold Metals is an equal opportunity workplace and an affirmative action employer. We are committed to equal employment opportunity for people of any race, color, ancestry, religion, sex, gender identity, sexual orientation, marital status, national origin, age, citizenship, disability, or veteran status.
The US base salary range for this full-time exempt position is $140,000 - $260,000 plus equity and benefits, including 401k match.
Location: KoBold is a remote-first workplace. All candidates must be legally authorized to work in one of the following countries: United States, Canada, Australia, South Africa, United Kingdom, Zambia, Democratic Republic of the Congo, Namibia, Finland, Sweden, or Botswana.
Compensation ranges are listed in USD. If you are based outside the US, the range may not translate directly: US pay reflects a different market with different competitive dynamics, so we benchmark roles against the local market rather than converting the listed figure.
Location: London
Your future role within QRT
Your core objective is to create high quality predictive signals.
By leveraging access to large and diversified datasets you will identify statistical patterns and opportunities.
Share and discuss research results, methodology, data sets and processes with other researchers.
Implement the signals and the relevant datasets within the global execution platform.
Monitor signal behaviour and model performance over time.
You would lead the full strategy research cycle from signal generation to implementation.
Your present skillset
Advanced degree in a quantitative field such as data science, statistics, mathematics, physics or engineering.
Strong knowledge in statistics, machine learning, NLP or AI techniques is a plus.
Capacity to multi-task in a fast paced environment while keeping strong attention to detail.
Coding skills required in at least one leading programming language (Python, R, Matlab and /or C++, C#).
Experience in exploring large datasets across multiple time frames is a plus.
Intellectual curiosity to explore new data sets, solve complex problems, drive innovative processes and connect the dots between multiple fields.
Capacity to work with autonomy within a collegial and collaborative environment.
Strong capacity to communicate with technologists, data scientists and traders across the globe.
Proven track record in delivering successful systematic strategies.
Location: Singapore/Hong Kong/Shanghai
Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors.
Your future role within QRT
Your core objective is to create high quality predictive signals
By leveraging access to large and diversified datasets you will identify statistical patterns and opportunities
Share and discuss research results, methodology, data sets and processes with other researchers
Implement the signals and the relevant datasets within the global execution platform
Monitor signal behaviour and model performance over time
You would lead the full strategy research cycle from signal generation to implementation
Your present skillset
Direct experience as a quant researcher or trader, or in data science/machine learning space.
Students and fresh graduate applicants will be rejected, please apply our internship/graduate positions instead.
Advanced degree in a quantitative field such as data science, statistics, mathematics, physics or engineering
Strong knowledge in statistics, machine learning, NLP or AI techniques is a plus
Capacity to multi-task in a fast paced environment while keeping strong attention to detail
Coding skills required in at least one leading programing language (Python, R, Matlab and /or C++, C#)
Experience in exploring large datasets across multiple time frames is a plus
Intellectual curiosity to explore new data sets, solve complex problems, drive innovative processes and connect the dots between multiple fields
Capacity to work with autonomy within a collegial and collaborative environment
Strong capacity to communicate with technologists, data scientists and traders across the globe
Proven track record in delivering successful systematic strategies
QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.
Location: New York, NY / Seattle, WA / San Francisco Bay Area, CA / Remote
Workplace: remote
About CertiK
One of the fastest-growing and most trusted companies in blockchain security, CertiK is a true market leader. To date, CertiK has worked with over 3,200 Enterprise clients, secured over $310 billion worth of digital assets, and has detected over 60,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Yearn, and Chiliz.
Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.
About the role
We are seeking security research interns to join a top-notch security research team. We are working on a wide range of security research topics, including malware analysis, vulnerability detection, network anomaly detection, mobile app analysis, reverse engineering, and fraud detections. Multiple research tasks are ready to be explored.
Responsibilities
Develop analysis tools to facilitate security discovery and design mitigation techniques to deter security threats.
Review system implementation of sandbox, VM, network modules, and critical distributed system.
Perform vulnerability discovery and develop PoC exploits to large distributed system implementations.
Publish research findings in related academic and industry venues.
Requirements
Pursuing Masters or PhD in Computer Science or Cybersecurity related field.
Experiences in vulnerability discovery and exploitation on web applications or system software.
Preferred
Experiences in WASM or Rust/Go development is a plus.
CTF experiences are a plus as well.
Compensation
$3000 - $8000/month (Full Time). The exact compensation at which this internship is filled will be determined by the skills and experience of qualified candidates.
#blockchain
#startups
#hiring
CertiK accepts applications on an ongoing basis for this position until it is filled. The approximate date of closing will be April 30, 2024.
CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.
CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.
CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.
https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf
All CertiK employees are expected to actively support diversity on their teams, and in the Company.
Location: Mumbai
Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology and trading expertise has shaped QRT’s collaborative mindset which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high-quality returns for our investors.
Your future role within QRT
Your core objective is to create high-quality predictive signals.
By leveraging access to large and diversified datasets you will identify statistical patterns and opportunities.
Share and discuss research results, methodology, data sets and processes with other researchers.
Implement the signals and the relevant datasets within the global execution platform.
Monitor signal behaviour and model performance over time.
You would lead the full strategy research cycle from signal generation to implementation.
Your present skillset
Advanced degree in a quantitative field such as data science, statistics, mathematics, physics or engineering.
Strong knowledge in statistics, machine learning, NLP or AI techniques is a plus.
Capacity to multi-task in a fast paced environment while keeping strong attention to detail.
Coding skills required in at least one leading programing language (Python, R, Matlab and /or C++, C#).
Experience in exploring large datasets across multiple time frames is a plus.
Intellectual curiosity to explore new data sets, solve complex problems, drive innovative processes and connect the dots between multiple fields.
Capacity to work with autonomy within a collegial and collaborative environment.
Strong capacity to communicate with technologists, data scientists and traders across the globe.
Proven track record in delivering successful systematic strategies.
QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees to achieve a healthy work-life balance.
Location: Global Remote
Workplace: remote
Metabase is the easiest way for people to get insights from their data, from tiny startups who get up and running quickly to major corporations with tens of thousands of users. That's why people love us.
We bring data tools with the elegance and simplicity of consumer products to the crufty world of enterprise business intelligence. We provide an opinionated open source starting point for how companies should measure, analyze and share their data, which is used by tens of thousands of companies.
And there's so much more to do! We're expanding the product in many directions, and continuously reevaluating decisions we made in the past in order to improve every flow and detail. We want to do that faster and even better, so we're looking for outcome-oriented, seasoned Product Designers to join our core team. At Metabase, design directly drives business success: our customers consistently choose us because of our superior UX — meaning your work will be directly responsible for our growth.
Product designers at Metabase are part of a centralized team, working closely with small teams of engineers to design and ship beautiful, simple solutions from beginning to end.
We have a unique design culture:
We focus on solving root problems rather than applying superficial fixes
We care more about a solution “feeling” right than rigidly adhering to “consistency”
We ship iteratively and value real-world outcomes over “perfect” process or glossy internal artifacts
Recent projects our designers have tackled include:
Creating a completely new Documents feature
Envisioning a new way to view, compare, and explore metrics
Creating patterns and surfaces for LLM-based SQL generation, natural language queries, and asynchronous agentic work
Responsibilities
Deliver end-to-end design solutions that are truly elegant, beautiful, fun, and simple.
Push back on complexity creeping into the product.
Use a variety of mediums to communicate what could or should be done, whether it’s LLM-generated prototypes, writing, Figjam diagrams, or high fidelity concepts and solutions.
Pull on engineers and product thinkers to ensure understanding of technical constraints and possibilities.
Iterate rapidly and broadly in scrappy ways that make abstract ideas tangible and which move conversations forward.
Deeply internalize the needs and mindset of our users through insights provided by the broader team. UX research skills aren't needed, but welcome.
Profile
You think in terms of journeys, not screens.
Biased toward building
things,
not slide decks.
Work out-in-the-open instinctively, out of an eagerness to receive feedback, and to riff and iterate with an experienced, skilled team.
Thorough and attentive to detail, with a high internal bar for your craft.
Strong ability to communicate design decisions and rationales through speaking and writing.
Comfortable with asynchronous collaboration, and articulating complex ideas remotely.
Skills and experience
Depth of experience designing solutions for challenging product problems. Your work will rely on research and analytics, but it will shine because of solid instincts and craftsmanship.
Experience designing specifically for large web applications/tools
Technical enough to understand at a high level what's happening inside the engineering black-boxes. (If you don't understand the complexity, how can you simplify it?)
Bonus Qualifications
Experience with LLM-based UI and interaction prototyping
Experience with Web development (HTML, CSS, React)
Technical background or education (CS degree or similar)
Experience building or using developer tools
Compensation
The US base salary range for this role is $93K–$210K annually, plus equity and benefits.
Compensation is determined by role, level, location, and individual qualifications, including skills, experience, and scope of responsibility. Pay may vary by geographic location and other job-related factors.
Benefits
We offer meaningful equity and a comprehensive US benefits package, including fully employer-covered medical, dental, and vision insurance (with 75% coverage for dependents), a 401(k) with employer match available to enroll after the first 30 days, flexible and unlimited paid time off including sick time, and an asynchronous, remote-first environment.
We're a global team (50% outside the US), fully distributed (from Thailand to California), who get things done asynchronously, with plenty of uninterrupted time, supporting each other to do the best work of our careers. We offer flexibility (define your own schedule and work from wherever you want), autonomy, and an environment that fosters growth, learning, and development. We're relentlessly user-focused and believe in building long-term value, not short-term hacks. And we raised a $30M Series B to take our approach to the next level for years to come.
For U.S. applicants: Metabase participates in the federal E-Verify program, which confirms employment authorization of newly hired U.S. based employees. E-Verify is not used as a tool to pre-screen candidates and is only initiated upon hire.
E-Verify Participation Notice (English/Spanish)
Right to Work Notice (English/Spanish)
Location: Hybrid
Workplace: hybrid
About the position
We're looking for a Game Developer to join our Development team and help bring Fanatee's mobile games to life. You'll be responsible for planning, developing, and maintaining the code behind our games, working closely with different teams to build high-quality experiences for millions of players around the world. If you're passionate about technology, innovation, and games, this could be the opportunity for you!
What you'll do
Participate in the planning and development of games.
Optimize game performance to ensure smooth and efficient experiences.
Collaborate with front-end and back-end teams to deliver the best product possible.
Contribute to feature specifications, balancing technical costs and benefits when evaluating solutions.
Track project schedules and report progress clearly and objectively.
Independently develop robust and scalable code.
Explore Artificial Intelligence solutions that can improve feature development and code quality.
What you'll need
Bachelor's degree in Computer Science, Engineering, Game Design, or a related field.
Advanced knowledge of Unity and C#.
Experience integrating native Android and iOS components, such as push notifications and in-app purchases (IAP).
Knowledge of local databases and offline data management.
Interest in applying AI coding tools, such as Claude Code, Codex, Gemini CLI, and similar solutions, to game development.
Excellent communication and teamwork skills.
Proactive mindset, fast learner, and commitment to high standards of quality.
Nice to have
Advanced English.
Experience with data architecture for games.
Hands-on experience with projects released to the market.
What We Offer
Beyond a vibrant and enjoyable work atmosphere, we offer:
Competitive compensation aligned with market standards
Flexible benefits
Health and dental insurance
Profit sharing
Career development opportunities and professional growth
While the role is primarily remote, our São Paulo office is available for those seeking a dedicated workspace. There, you’ll find a calm environment, a stocked fridge with snacks and drinks, and even a ping-pong table for a bit of fun. Come help shape the future whith our amazing team!
About Fanatee
Fanatee is a mobile gaming startup founded in 2013. Since then, our goal has been to enable people to play our games anytime, anywhere. We believe that quality is the key to success.Our creative processes are well planned and carefully detailed, and our talent lies in turning great ideas into great businesses: our games hit over 250M downloads worldwide. We believe that a diverse work environment contributes to an increasingly responsible society that values differences. Our dream allows us to do what we love the most: work with talented, passionate people and give them the opportunity to achieve goals as big as they can dream of.
If you want to share this ride with us and join a lightweight, fun, and focused environment that breathes innovation and game culture, apply now!
Location: US / Remote
Workplace: remote
About the Role:
We are seeking a Senior Blockchain Security Engineer with a strong security mindset and deep technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. You will play a critical role in safeguarding Web3 projects by auditing code, building security tools, and driving research. If you have hands-on experience in Web3 and are passionate about advancing the security of decentralized technologies, we’d love to hear from you.
Responsibilities
Audit and review codebases for smart contracts, blockchain protocols, and decentralized applications (dApps) to identify and remediate vulnerabilities.
Work closely with external blockchain teams to enhance the security of their products by providing expert security consultation and implementing remediation strategies.
Conduct independent security research, explore new attack vectors, and deliver actionable insights.
Design, develop, and maintain internal security tools and frameworks to strengthen our security services.
Continuously improve internal processes, methodologies, and service offerings while ensuring high client satisfaction and long-term partnerships.
Requirements
Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security.
Minimum 3 years of professional experience as a Software Engineer, Security Engineer, or in a related role.
At least 2 years of hands-on experience with blockchain technologies, including: Smart contracts (EVM chains, Solana, Move, etc.), Blockchain protocols (nodes, SDKs, Cosmos, etc.)
Strong expertise in threat modeling, risk assessment, and security analysis.
Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc.
Passion for Cryptocurrency, DeFi, and Blockchain technologies.
Preferred Qualifications
Solid academic or practical background in Mathematics, Cryptography, or Cybersecurity.
Demonstrated experience conducting audits and collaborating with leading Web3 protocols.
Recognized achievements such as published CVEs, or strong placements in Attackathons, Bug Bounties, or Audit Contests.
About the Company
CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance.
Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.
About You
You’re a self-starter. You believe in tackling the most important problems, even if they are the most difficult problems. You’re comfortable with the unknown and understand that startup life means that you’re going to be wearing multiple hats. And that’s what motivates you. You’re accountable and obsessed with improvement, both in yourself and in others. You’re up to the challenge of building a world-class company that aims to be the infrastructure for more secure software for all.
Compensation
Target annual salary for this role performed in the US is $102,000 - $180,000.
The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.
CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.
CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.
CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.
https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf
All CertiK employees are expected to actively support diversity on their teams, and in the Company.
seniorYerevan; Relocation package in certain cases
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