Fullstack Engineer

## About the role Sigma Global is expanding its market into the US and growing its pool of senior full-stack engineers who can own both the technology and the client communication around it. As a Full Stack Engineer (TypeScript, React, Python and FastAPI), you will own feature development from initial concept through launch, crafting high-quality code across our TypeScript/React frontend and Python/FastAPI backend, writing clear technical specifications that translate business needs into robust solutions, and acting as a key technical communicator for US-based stakeholders by driving design discussions, documenting decisions, and keeping cross-functional teams aligned as the stack and product evolve. ## Responsibilities - Lead technical communication with US-based stakeholders by writing specs, facilitating design discussions, and documenting decisions across the stack - Own end-to-end feature development—oversee the entire product lifecycle from initial idea to launch, ensuring a cohesive flow from backend to frontend - Craft high-quality code—produce clear and efficient code, actively engage in code reviews, and champion technological excellence - Write tech specs—translate business needs into creative and technically robust solutions - Engage with cross-functional partners—collaborate closely with design, product, and stakeholders to drive the success of the project - Document thoroughly—create comprehensive technical documentation, simplifying the onboarding process for newcomers - Refine best practices—proactively seek and implement improvements in engineering and organizational workflows - Drive engineering planning and processes—participate in sprint planning, effort estimation, capacity planning, and release management - Architect and evolve the overall stack—guide technology decisions and stack improvements; anticipate scaling challenges ## Nice to have - 5+ years of experience in software engineering, with at least 2 years in a senior role - Frontend experience: TypeScript, React - Backend experience: Python and FastAPI - Experience with relational databases (e.g. PostgreSQL, MySQL) - Familiarity with CI/CD tools, especially GitHub Actions - Growth mindset: able to quickly learn new languages, frameworks, and more - Strong written and verbal communicator in English - Exceptional comfort with communication-heavy work: specs, design docs, status updates, and stakeholder alignment ## What we offer - Own features from idea to launch across the full stack - Work with modern TypeScript, React, Python, and FastAPI - Shape tech specs, documentation, and engineering processes - Collaborate with design, product, and stakeholders on real projects - Guide architecture and stack evolution as we scale ## Compensation - Competitive compensation commensurate with experience, performance, and geographic location - Opportunity for increased compensation and expanded responsibilities based on contributions and impact - Paid time off (PTO) and flexible leave policies - Parental leave for all eligible team members