Senior Full Stack Software Developer

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