Fractional Senior Full Stack Engineer (Stabilization / AI-Generated Code)
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About the role
We're hiring a senior, hands-on engineer to support multiple early-stage products that need stabilization. Most projects were built quickly by non-technical founders using AI tools. As a result, codebases are often incomplete, inconsistent, or fragile. This role is focused on reviewing, fixing, and stabilizing existing systems not just building new features.
Responsibilities
- Review and assess existing codebases (often AI-generated or founder-built)
- Identify bugs, structural issues, and technical risks
- Refactor and stabilize applications for production use
- Improve performance, structure, and maintainability
- Fill gaps in core functionality (auth, payments, backend logic)
- Implement lightweight QA / testing where needed
- Collaborate with engineers, QA, and project leads
- Work across multiple projects as priorities shift
Requirements
- 5+ years of full stack experience
- Strong experience working in messy / inherited codebases
- Comfortable operating without full documentation
- Proven ability to take products from MVP → stable product
- Practical, solution-oriented mindset (not theoretical)
- Strong communication and team collaboration
- Comfortable in fast-moving, delivery-focused environments
- Tech Stack (Flexible)
- Python (FastAPI, Django) - preferred
- Node.js / TypeScript
- React / Next.js
- Firebase, Supabase, or similar
- APIs & modern web architectures
- Flexibility > specialization
- Engagement Model
- Fractional, hourly
- 10-40 hrs/week depending on project load
- Initial engagements ~4 weeks
- Ongoing work across multiple client projects
Benefits
Additional Information
Fractional Senior Full Stack Engineer (Stabilization / AI-Generated Code) Location: Remote (LATAM & Eastern Europe) Type: Contract / Fractional (10-40 hrs/week)
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