Fractional Senior Full Stack Engineer (Stabilization / AI-Generated Code)

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