Fullstack Engineer

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.

What You'll Do

• 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

Why Join Us

• 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

To apply, please contact us at [email protected] .
Sigma Global is proud to be an equal opportunity employer and welcomes applications from all qualified candidates regardless of background or experience.