Senior Full Stack Developer - React, C# .NET, Typescript
Company: Hammerjack
Location: Manila, Metro Manila (Remote)
Type: Full-time
Remote: Yes
Posted: 2026-06-17
About this role
Role: Senior Full Stack Developer (React, C# .NET, Typescript)
Work Set-Up: FULLY REMOTE (with onsite schedules upon client request
## Job Overview
We are looking for a Senior Full Stack Developer to join our engineering team and help build scalable, high-quality web applications. This role requires strong expertise across both frontend and backend development, with a focus on React, TypeScript, and C#/.NET. You will work closely with cross-functional teams to design, develop, and deliver robust solutions while contributing to technical architecture, code quality, and engineering best practices.
## Duties and Responsibilities
- Design, develop, and maintain full-stack web applications using React, TypeScript, and C#/.NET.
- Build responsive, accessible, and user-friendly interfaces that deliver exceptional user experiences.
- Develop and maintain APIs, backend services, and database solutions.
- Collaborate with product, design, and engineering teams to deliver new features and enhancements.
- Participate in technical design discussions and contribute to architectural decisions.
- Write clean, maintainable, and well-tested code following development best practices.
- Perform code reviews and support continuous improvement initiatives across the engineering team.
- Troubleshoot, debug, and resolve issues across frontend and backend systems.
- Contribute to application performance, scalability, security, and reliability.
- Stay up to date with emerging technologies and development practices.
## Key Qualifications
Required
- 5+ years of experience shipping production software as a Full Stack Engineer, with strong frontend and backend expertise.
- Deep experience with React and TypeScript (strict mode), including generics, discriminated unions, hooks, and modern development patterns.
- Strong experience with C#/.NET, including minimal APIs, async/await, Entity Framework Core (or equivalent ORM), and recent .NET versions.
- Strong RDBMS exper...