Senior/Staff Software Engineer (TypeScript-infrastructure)

Pre-series A Opensource startup is looking for Senior or Staff Engineers, full remote. Must have worked on open source projects or developer tools and must have a strong typescript background Also will not sponsor and must live in the US, looking for people who have tenure, history working for series background startups and have worked on dev tooling, dev ex and ideally open source companies. Senior or Staff Software Engineer (Open Source) – TypeScript / Node.js / React About the Role We are seeking a highly skilled Senior or Staff Software Engineer with a deep passion for developer experience and open-source technology. This role is ideal for someone who thrives in the TypeScript ecosystem, with extensive experience in React at the infrastructure level —not just application development, but creating state management solutions, custom hooks, and optimizing performance. You will play a pivotal role in architecting developer tools, SDKs, and frameworks that empower thousands of engineers worldwide. If you are passionate about functional programming, automation, and scalable architecture , and have a track record of building high-performance, developer-friendly infrastructure , we want to hear from you. What You’ll Do Architect and enhance our open-source and enterprise platforms, ensuring seamless integrations for developers. Lead the development of developer tooling, SDKs, and infrastructure solutions that enhance performance and usability. Drive best practices in functional programming, TypeScript, and Node.js , focusing on clean architecture and maintainability. Collaborate with top engineers and open-source contributors to build cutting-edge solutions in AI and developer tooling. Own complex technical challenges end-to-end, from design to deployment, in a fast-paced, innovation-driven environment. Engage with the developer community, contribute to open-source projects , and ensure best-in-class API design and DX (Developer Experience). What We’re Looking For ✅ Deep expertise in TypeScript (5+ years) ✅ Advanced React knowledge (beyond UI development—focus on state management, infrastructure, and performance optimization) ✅ Strong backend experience with Node.js and related frameworks ✅ Understanding of developer tooling and infrastructure ✅Experience in SDK development or creating tools for developers ✅ High autonomy —thrives in ambiguity and takes initiative without micromanagement ✅ Experience working in open-source environments —contributions, collaborations, or leadership in open-source projects Bonus Points For ➕ Strong grasp of functional programming principles (background in Rust, Haskell, or similar is a plus) ➕ Experience optimizing nested asynchronous operations and handling performance bottlenecks ➕ Background in Large Language Models (LLMs) or AI-driven developer tooling ➕ Experience with Python for backend services or AI/ML integrations ➕Cloud native or kubernetes background Why Join Us? Work on a high-impact open-source project with global adoption, influencing the next generation of developer tools. Be at the forefront of AI-driven software development Backed by leading Silicon Valley VCs We are seeking an experienced backend-focused cloud engineer who thrives in designing and deploying scalable, cloud-native applications . You should have deep expertise in TypeScript, Kubernetes, and Docker , with a strong emphasis on backend systems, cloud infrastructure, and distributed architectures . In this role, you will develop and optimize mission-critical cloud-native applications that operate across public cloud (AWS, Azure, GCP) and on-premise environments. You will be instrumental in building self-hostable enterprise solutions , helping developers and organizations scale their AI-driven applications efficiently. If you’re passionate about high-performance backend systems, Kubernetes orchestration, and DevOps automation , we want to hear from you. What You’ll Do Architect and develop scalable, self-hostable cloud-native applications that run across multi-cloud and on-prem environments. Design and implement backend infrastructure, APIs, and system integrations that support high-scale developer workflows. Optimize containerized deployments with Kubernetes, Docker, and Helm , ensuring high availability and seamless automation. Lead best practices for intra-application communication , distributed systems, and CI/CD pipelines. Work closely with open-source contributors, enterprise teams, and cloud engineers to build highly flexible and extensible developer tools. Build infrastructure that enables millions of developer interactions , ensuring security, performance, and scalability. Own deployments across AWS, Azure, and GCP , ensuring cloud-agnostic design without vendor lock-in. What We’re Looking For ✅ Strong backend engineering expertise in Node.js / TypeScript (5+ years) ✅ Hands-on Docker expertise —optimizing containerized environments ✅ Experience designing self-hosted and cloud-native applications that operate in hybrid cloud/on-prem environments ✅ Strong AWS experience —understanding of cloud-native patterns and infrastructure design ✅ High autonomy —capable of leading and executing complex projects with minimal guidance ✅ Deep understanding of intra-application communication and backend system optimization Bonus Points For ➕ Experience with Azure and GCP —multi-cloud deployment expertise ➕ Background in DevOps, CI/CD automation, and cloud security ➕ Experience building developer tools, SDKs, and open-source platforms ➕ Strong grasp of distributed computing and scalable backend architectures ➕ Experience working with LLMs or AI-native infrastructure ➕ Python experience for backend automation and AI-driven integrations Why Join Us? Work on a high-impact open-source and enterprise cloud-native platform , used by developers and enterprises globally. Be part of a hyper-growth AI-native startup , backed by top Silicon Valley VCs , growing rapidly with strong market adoption. Build next-gen cloud-native developer infrastructure , working alongside the industry’s best engineers. Join a high-caliber, mission-driven team at the forefront of the AI revolution redefining how software is built and deployed. Key Factors Deep TypeScript and backend engineering expertise Hands-on Kubernetes and containerization skills Ability to architect cloud-native applications across AWS, Azure, and GCP Experience writing Helm charts and managing Kubernetes-based deployments Understanding of intra-application communication in large-scale systems Cloud-agnostic mindset—able to build across multiple environments, not locked into AWS #J-18808-Ljbffr