Senior Software Engineer – Backend

About Us – GECO Philippines

GECO Philippines is a global IT talent solutions and technology services company connecting skilled professionals with leading organizations. We specialize in software development, cloud, enterprise systems, and digital transformation, building high-performing teams and delivering innovative tech solutions across Asia and beyond.

Senior Software Engineer – Backend Job Summary

We are seeking a highly skilled Senior Software Engineer – Backend with strong expertise in JavaScript/TypeScript, backend systems, and scalable architecture. You will design, build, and optimize high-performance APIs and services while collaborating with cross-functional teams.

Key Responsibilities

• Design, develop, and maintain scalable backend systems and APIs
• Build efficient and reusable server-side applications using JavaScript/TypeScript
• Optimize performance, scalability, and system reliability
• Apply clean architecture and best engineering practices
• Collaborate with frontend, QA, DevOps, and product teams
• Participate in code reviews and system design discussions
• Improve CI/CD pipelines and development workflows
• Ensure code quality through testing and linting
• Troubleshoot production issues and implement long-term fixes
• Mentor junior developers when needed

Technical Skills & Qualifications JavaScript / TypeScript

• Strong proficiency in JavaScript and TypeScript
• Advanced understanding of typing, interfaces, and generics
• Clean, scalable code development

Backend Development

• Experience with RESTful APIs and backend services
• Microservices and distributed systems knowledge
• Node.js frameworks (NestJS / Express.js)
• Database and third-party integrations

Build & Engineering Tools

• Webpack, Rollup, Vite, Babel, tsup, SWC
• Optimization: bundling, tree shaking, code splitting, caching

Code Quality

• ESLint, Prettier
• Strong coding standards and best practices

Frontend Ecosystem Exposure

• React (Hooks, Context API, lifecycle)
• State management: Redux, Recoil, Zustand
• React Router, TanStack Query, React Hook Form
• Testing tools and practices

Modern JavaScript Concepts

• Functional programming
• Async programming
• Design patterns (Factory, Observer, Singleton)
• Reactive programming

Preferred Qualifications

• Cloud platforms (AWS / Azure / GCP)
• Docker, Kubernetes, CI/CD pipelines
• PostgreSQL, MySQL, MongoDB, Redis
• Testing experience (unit, integration, automation)
• Strong problem-solving skills
• Excellent communication and teamwork

Qualifications

• Bachelor’s degree in IT, Computer Science, or related field
• 5+ years of backend/software engineering experience
• Strong system design and architecture background

Work Setup

• Full-time
• Hybrid / Onsite / Remote (depending on project)