Senior Backend Developer - Node.js, TypeScript & APIs (Homebased)

Job Description

Key Responsibilities • Build backend services that power payment processing, including sessions, routing, provider adapters, and webhooks. • Develop solutions across the full software lifecycle—from database schema design through deployment. • Integrate multiple payment providers using clean adapter patterns, consistent error handling, and maintainable abstractions. • Write production-grade code that processes financial transactions with a strong focus on correctness, idempotency, and reliability. • Contribute to architectural discussions, identify design risks early, and continuously improve the platform. Quality & Performance • Develop comprehensive unit, integration, and end-to-end tests. • Debug production issues by identifying and resolving root causes. • Participate in code reviews, providing constructive feedback while maintaining high engineering standards. • Collaboration • Partner closely with the Tech Lead on architecture and implementation decisions. • Collaborate with Product teams to understand business requirements and acceptance criteria. • Actively participate in Agile ceremonies including stand-ups, sprint planning, and retrospectives. • Support deployment activities, observability, monitoring, and incident response throughout the software lifecycle. Success Measures • You'll be successful in this role if: • You consistently deliver reliable, production-ready software with strong test coverage and minimal regressions. • Payment provider integrations remain clean, scalable, and easy for the team to extend. • You proactively identify design risks, technical dependencies, and edge cases before they become issues. • Your code reviews improve code quality, architecture, and team knowledge. • You build trust through clear communication, accountability, and dependable collaboration across distributed teams. Qualifications Required Skills & Experience • Extensive experience building production-grade backend systems. • Strong background in distributed systems, high-volume APIs, and third-party integrations. • Expert-level proficiency in TypeScript and Node.js . • Strong understanding of asynchronous programming, event-driven architecture, and backend performance optimization. Hands-on experience with PostgreSQL , including: • Database schema design Query optimization • Transactions Caching strategies • Practical experience designing and maintaining microservices architectures. • Working knowledge of AWS cloud services. • Experience with Docker and CI/CD pipelines. Strong operational ownership, including: • Observability and monitoring • Debugging production issues • Root cause analysis System maintenance On-call support • Excellent written and verbal English communication skills in distributed environments. Personal Attributes We're looking for someone who: • Prioritizes correctness and understands the critical nature of payment systems. • Takes ownership of the software they build from development through production support. • Delivers complete, production-ready features with proper documentation and observability. • Thrives in startup environments with evolving processes and limited documentation. • Elevates team performance through thoughtful code reviews, collaboration, and technical leadership. • Is proactive, curious, and continuously seeks opportunities to improve systems and processes. Schedule • Monday -Friday 1PM - 10PM Manila Time Work Location • Note: As part of our recruitment process, we conduct a background check on all hired candidates. Please ensure that all required documents are prepared and submitted promptly. • By clicking on the "I'm Interested" button I hereby allow Outsourced Quality Assured Services, Inc. ("Outsourced") to store and collect my personal information for the purposes of employment application. As such, I agree and authorize Outsourced to collect, store, or continue to use my personal information for the above-stated purpose, and to retain my personal information for a period of 1 year, and for these purposes only.