# Senior Full Stack Software Developer

> Outsourcing Advantage · Philippines (Remote) · — · Posted 2026-08-03

**Workplace:** remote

**Department:** OSA Global

## Description

Outsourcing Advantage is a boutique business process outsourcing provider specializing in back-office and customer support services for US-based companies. We are seeking a highly experienced **Senior Full Stack Software Developer** to take ownership of an existing AI-generated bookkeeping software platform and drive it through completion.

This is an exciting opportunity for a self-sufficient, solution-oriented developer who can independently assess, troubleshoot, improve, and deliver a complex software product with minimal direction. The ideal candidate has strong full stack development expertise, a solid understanding of accounting principles, and proven experience taking software projects from planning to production.

This is a **temporary remote position** expected to last approximately **8 months**.

### **Key Responsibilities**

-   Take full ownership of an existing bookkeeping software platform

-   Analyze the current system architecture, codebase, and business logic
-   Identify technical, functional, and financial data integrity issues
-   Design and implement scalable solutions to improve system performance, reliability, and usability
-   Independently prioritize development tasks and drive projects with minimal supervision
-   Collaborate with stakeholders to understand business requirements and translate them into technical solutions
-   Ensure accounting workflows, financial calculations, reports, and outputs are accurate and reliable
-   Debug, refactor, optimize, and enhance the existing codebase
-   Create and maintain technical documentation when necessary
-   Conduct comprehensive testing and validation to ensure software quality and financial data accuracy
-   Deliver the platform to a production-ready state

## Requirements

-   6-7+ years of professional experience in full stack software development
-   Proven experience owning software projects from planning through deployment
-   Strong understanding of accounting principles, bookkeeping workflows, and financial reporting
-   Experience inheriting, reviewing, and improving existing software applications
-   Excellent troubleshooting, analytical, and problem-solving skills
-   Ability to work independently with minimal supervision
-   Strong communication and project management skills
-   Strong experience with Docker deployment in development and production environments

### **Preferred Qualifications & Ideal Candidate Profile**

The ideal candidate will have:

-   Experience developing or maintaining accounting, bookkeeping, ERP, or financial software platforms
-   Experience reviewing and improving AI-generated codebases
-   Experience performing software audits, financial reporting, data validation, and reconciliation processes
-   Ability to establish technical direction and make sound architectural decisions
-   Experience working with and optimizing existing or legacy software applications
-   A portfolio, GitHub repository, or examples of completed software projects is an advantage
-   The ability to quickly understand and work within an unfamiliar codebase
-   The ability to thrive in situations where requirements or documentation are incomplete
-   A proactive mindset with the initiative to take full ownership of projects with minimal supervision
-   A strong understanding of both software engineering and accounting principles
-   The ability to identify expected system behavior, implement effective solutions, and validate financial outputs for accuracy
-   A proven track record of successfully delivering complex software projects from development through production
-   Excellent analytical, troubleshooting, and problem-solving skills with strong attention to detail
-   A commitment to building reliable, scalable, and production-ready software solutions
-   Availability to work with significant overlap during Eastern Standard Time (EST) business hours

### **Technical Requirements**

Strong experience with:

-   TypeScript
-   Quickbooks
-   React
-   Vite
-   Tailwind CSS
-   Node.js
-   Express.js
-   PostgreSQL
-   Drizzle ORM

## Benefits

-   Competitive salary
-   Opportunity to work on an innovative accounting software platform
-   Supportive and collaborative work environment
-   Weekly payments
-   Weekends off
-   Growth opportunities

## Apply

[Apply at Outsourcing Advantage](https://apply.workable.com/osa/j/FE4BF03DD1/apply)

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