Fractional Senior Full Stack Engineer (Stabilization / AI-Generated Code)
Role Overview
This senior-level fractional role focuses on stabilizing and refactoring messy, AI-generated codebases for early-stage products. Day-to-day tasks include reviewing existing code, identifying bugs and structural issues, refactoring for production readiness, and filling gaps in core functionality like auth and payments. The engineer will work across multiple projects, collaborating with engineers and leads in a fast-paced, delivery-focused environment.
Perks & Benefits
This is a fully remote contract role with flexible hours (10-40 hrs/week), ideal for independent engineers. Time zone alignment with LATAM and Eastern Europe suggests asynchronous collaboration. While not explicitly stated, fractional roles often offer high autonomy and the chance to impact multiple products, with potential for ongoing work across client projects.
Full Job Description
Fractional Senior Full Stack Engineer (Stabilization / AI-Generated Code)
Location: Remote (LATAM & Eastern Europe)
Type: Contract / Fractional (10–40 hrs/week)
Overview
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.
What You’ll Do
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
What We’re Looking For
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
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