Senior Software Engineer (Node.js)

Senior Software Engineer (Node.js)

Join MagmaLabs, a leading provider of expert software engineers dedicated to helping companies achieve their goals across diverse and impactful industries. We are actively seeking a seasoned Senior Software Engineer (Node.js) to join our fully remote team.

About the Role

Are you a seasoned Backend Engineer passionate about building reliable, secure, and scalable systems with Node.js?

As a Senior Software Engineer (Node.js), you will take ownership of architectural decisions, lead backend initiatives, and ensure best practices across high-traffic APIs, SaaS platforms, and distributed systems. You’ll balance delivery speed with long-term maintainability, performance optimization, security, and observability.

Your contributions will directly impact system reliability, developer productivity, and business scalability.

If you thrive on solving complex backend challenges using modern JavaScript/TypeScript ecosystems, we want to hear from you.

Responsibilities

• Lead the architectural design, development, and continuous evolution of scalable backend applications using Node.js (preferably with TypeScript).


• Design and implement RESTful and/or GraphQL APIs with clear versioning, validation, documentation, and error-handling standards.


• Optimize database performance (primarily PostgreSQL), including schema design, indexing strategies, query tuning, and transaction management.


• Implement asynchronous processing, background jobs, and event-driven workflows using modern queue or messaging systems.


• Design resilient integrations with third-party APIs and services (timeouts, retries, circuit breakers, monitoring).


• Ensure code quality and reliability through automated testing (unit, integration, and contract tests).


• Participate in code reviews, maintain high engineering standards, and actively mentor team members.


• Collaborate cross-functionally with product managers, designers, and other engineers to deliver end-to-end solutions.


• Contribute to infrastructure and deployment processes (Docker, Kubernetes, CI/CD pipelines).


• Improve production reliability through monitoring, logging, tracing, and performance optimization.


• Maintain clear technical documentation, including architecture decisions and operational guidelines.


• Take ownership of complex technical initiatives and drive them to completion independently.

Requirements

• Minimum of 7 years of software development experience, with at least 5 years focused on backend development using Node.js in production environments.


• Strong proficiency in TypeScript (or modern JavaScript with willingness to work in TypeScript).


• Experience with backend frameworks such as NestJS, Express, or Fastify.


• Solid expertise with relational databases (preferably PostgreSQL), including schema design and query optimization.


• Experience with caching and/or asynchronous processing systems (e.g., Redis, message brokers, queues).


• Hands-on experience with automated testing frameworks (e.g., Jest or similar) and CI/CD pipelines.


• Strong understanding of secure backend practices (authentication, authorization, input validation, secrets management, rate limiting).


• Experience working with containerization and cloud environments.


• Proficiency with Git and collaborative development workflows.


• Strong problem-solving skills and ability to thrive in a remote-first environment.


• Excellent communication skills in English.


• Demonstrated ability to take initiative and lead technical decisions independently.


• Experience working within Agile development methodologies (Scrum, Kanban, etc.).

Bonus Points If You Have

• Experience designing microservices or refactoring monolithic systems.


• Experience with event-driven architectures.


• Familiarity with GraphQL or advanced API contract design.


• Experience with Amazon Web Services, Google Cloud, or Microsoft Azure.


• Hands-on experience with Docker and container orchestration.


• Knowledge of distributed tracing and observability practices.


• Exposure to frontend frameworks such as React.js.


• Contributions to open-source projects or technical publications.

About Us

We are a team of innovative software professionals dedicated to delivering high-quality solutions across diverse industries. With a proven track record of success, we prioritize technical excellence, collaboration, and the continuous growth of our team members.

We are committed to mentorship, skill expansion, and long-term career progression within a supportive, remote-first environment.

Join us to work on impactful projects and advance your career as a Senior Node.js Engineer.