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

Job Overview

Location

Brazil

Job Type

Full-time

Category

Software Engineering

Date Posted

June 4, 2026

Full Job Description

📋 Description

  • Review and assess existing codebases, often built by non-technical founders using AI tools, to identify bugs, structural flaws, and technical risks
  • Refactor and stabilize applications to make them production-ready, focusing on reliability, performance, and maintainability rather than new feature development
  • Fill critical gaps in core functionality including authentication, payment processing, and backend logic for early-stage products
  • Improve code structure and architecture to reduce technical debt and increase long-term scalability
  • Implement lightweight QA and testing practices where documentation or existing test coverage is absent or inadequate
  • Collaborate with engineers, QA teams, and project leads across multiple concurrent client projects
  • Adapt quickly to shifting priorities and work across diverse tech stacks with minimal onboarding or context
  • Operate effectively in environments with incomplete or nonexistent documentation, relying on code analysis and practical problem-solving
  • Work within a fractional engagement model, delivering high-impact stabilization work on a flexible schedule of 10–40 hours per week
  • Engage in initial 4-week engagements that may extend into ongoing support across multiple client products
  • Focus on practical, solution-oriented outcomes rather than theoretical or idealized architectures
  • Maintain clear communication with non-technical stakeholders and technical teams to align stabilization efforts with business goals
  • Work remotely with teams across LATAM and Eastern Europe, coordinating across time zones and asynchronous workflows
  • Prioritize stability and robustness over speed of delivery, ensuring systems can withstand real-world usage
  • Apply expertise in modern web architectures to integrate and secure APIs, databases, and frontend-backend communication layers
  • Use judgment to determine when to rebuild versus when to patch or refactor existing AI-generated or founder-built code
  • Maintain consistent delivery across projects with varying levels of technical maturity and code quality

🎯 Requirements

  • 5+ years of full stack experience
  • Strong experience working in messy or inherited codebases
  • Comfortable operating without full documentation
  • Proven ability to take products from MVP to stable, production-ready state
  • Practical, solution-oriented mindset
  • Strong communication and team collaboration skills

🏖️ Benefits

  • Fractional, hourly engagement with flexible hours (10–40 hrs/week)
  • Opportunity to work across multiple early-stage client projects
  • Remote work with flexibility across LATAM and Eastern Europe time zones
  • Direct impact on stabilizing and scaling products built with AI-generated code

Skills & Technologies

Python
JavaScript
TypeScript
React
Next.js
Full Stack
Senior
Remote

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About Bullpen Talent, Inc.

Bullpen Talent is a technology-enabled recruiting firm that specializes in placing senior-level finance, accounting, and data professionals in high-growth companies across the United States. Founded in 2012, the company combines proprietary data analytics, rigorous assessment, and deep industry relationships to deliver permanent and interim hires for CFO, Controller, FP&A, and corporate development roles. Its platform continuously maps active and passive talent, enabling clients to reduce time-to-hire while improving retention and diversity.

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