Senior Software Engineer
Job Description
Sinch is seeking a pragmatic Full-Stack Engineer with 3-5 years of experience to join their team. The role focuses on building scalable web applications across the MERN/Node ecosystem and JVM services. As a Senior Software Engineer, you'll be responsible for end-to-end feature ownership, from design to deployment, while working closely with product, design, and QA teams. The position requires strong expertise in Java and/or Node.js/Express, React, MongoDB, and modern web technologies. You'll be building RESTful APIs, developing responsive UIs, managing databases, and ensuring high-quality code through testing and reviews. The ideal candidate should have excellent communication skills and a product-minded approach. The role offers exposure to modern technologies like Redis, Kafka, and cloud platforms, with opportunities to work on performance optimization and security implementations. Working in a hybrid environment in Noida, India, you'll be part of a team that values quality, collaboration, and iterative development.
Responsibilities For Senior Software Engineer
- Design and develop RESTful/JSON APIs in Node.js/Express and/or services in Java
- Build responsive, accessible UIs with React
- Model data and write performant queries on MongoDB
- Write unit/integration tests
- Participate in code reviews and CI/CD workflows
- Instrument services for logs/metrics/tracing
- Troubleshoot performance and production issues
- Collaborate with PM/Design
- Follow secure coding practices
Requirements For Senior Software Engineer
- 3-5 years professional experience as a full-stack or backend engineer
- Strong in Java (OOP, collections, concurrency basics) and/or Node.js/Express
- Proficiency with React and modern JavaScript/TypeScript
- Solid experience with MongoDB
- Comfortable with Git, REST, JSON, async programming, and debugging across the stack
- Clear, concise communication skills with a product mindset
Related Jobs
