Senior Software Engineer / Team Lead - OP02307

Location: São Paulo, Brazil; Buenos Aires, Argentina; Bogotá, Colombia We are hiring in Latin America! 🟢 At Dev.Pro, a US-based outsourced software development company, we're looking for contractors to join our global team of IT professionals helping tech companies scale their business through software engineering expertise. Operating as a remote-first company, our experts work across 55+ countries on five continents, giving us the flexibility and skillset to deliver high-quality engineering for projects of any size or complexity. We invite a Senior Full-Stack Software Engineer to join our team and work on an orchestration platform for a leading global fintech company. The platform enables business partners to integrate once and offer a growing range of embedded financial products to their clients. In this role, you’ll develop and maintain React.js applications, embeddable widgets, and .NET services, contribute to AWS-based solutions, and support the delivery of secure, reliable, production-ready software. 🟩 What's in it for you: Help shape a growing platform that enables a wide range of embedded financial products Tackle complex engineering challenges across React.js, .NET, AWS, and partner integrations Influence technical decisions, guide the team, and stay hands-on with development ✅ Is that you? 10+ years of experience developing and supporting production software Strong C#/.NET Core skills, including REST APIs, dependency injection, async programming, testing, and secure coding Hands-on experience with React.js, JavaScript/TypeScript, component architecture, state management, HTML, and CSS Experience with PostgreSQL, MongoDB, or similar relational and document databases Experience with microservices, API-first development, third-party integrations, and resilient distributed systems Hands-on experience with AWS, Docker, and Kubernetes/EKS Ability to write automated unit and integration tests and troubleshoot UI, API, data, and cloud issues Experience with Git workflows and CI/CD tools such as GitHub Actions, Jenkins, or GitLab CI Ability to translate requirements into maintainable, well-documented solutions Experience providing technical leadership and guidance to engineering teams Valid U.S. visa and ability to travel to the U.S. for onboarding and knowledge transfer Desirable: Experience with embeddable widgets, micro-frontends, white-label apps, or multi-tenant SaaS Experience with AWS Lambda, Step Functions, ECS batch, S3, KMS, certificate or secret management Exposure to Python services, data pipelines, and unittest Experience with Terraform/Pulumi and GitOps tools (Argo CD) Experience with Splunk, Datadog, Grafana, CloudWatch, distributed tracing, and incident support Background in financial services, payments, embedded finance, lending, or banking 🧩Key responsibilities and your contribution In this role, you’ll combine hands-on engineering with technical leadership to deliver high-quality, reliable software solutions. Develop and maintain React.js applications, portals, and embeddable widgets Build secure REST APIs and microservices using C# and .NET Core Implement business workflows and integrations with finance providers, partners, enterprise APIs, webhooks, file exchanges, and AWS services Design and maintain PostgreSQL and MongoDB schemas, queries, migrations, and data-access patterns Contribute to AWS workloads using EKS, Lambda, containers, and Step Functions or equivalent orchestration Write unit, component, integration, contract, and end-to-end tests Build reusable UI components and improve accessibility, performance, and maintainability Guide engineers and contribute to API/event-contract design, code reviews, architecture discussions, and documentation Support infrastructure automation using CI/CD, Docker, Kubernetes, and infrastructure as code Implement logging, metrics, tracing, and alerts; troubleshoot issues across application layers Collaborate with QA and operations on testing, release readiness, and recovery procedures Our next steps: ✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Internal interview — ✅ Client interview — ✅ Offer Interested? Find out more: 📋How we hire 💻 LinkedIn Page 📈 Our website 💻IG Page By submitting application, I've read and agree to the Dev.Pro Private Policy and Consent on Processing of Personal Data . I agree to have my Personal Data being stored and processed by Dev.Pro.