Senior Software Engineer, Node.js

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🕒 March 1

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MagmaLabs

WebsiteLinkedInAll Job Openings

51 - 200 employees

☁️ SaaS

🛍️ eCommerce

💳 Fintech

💰 Pre Seed Round on 2017-01

SaaS • eCommerce • Fintech

MagmaLabs is a software development company specializing in strategy, design, product management, and development. With a 12-year history, MagmaLabs transforms tech services and helps client projects succeed through innovative solutions. The company has executed over 200 successful projects across eCommerce, mobility, health tech, and fintech industries, utilizing tools like Ruby on Rails, React, and Node. MagmaLabs provides full-stack, mobile, and front-end engineering services and is known for its innovative use of modern web technologies and frameworks. Their expertise includes web and mobile application development, enhancing user experiences, and delivering high-performance and scalable software solutions. MagmaLabs also engages with an open-source community and offers competitive tech services globally.

📋 Description

• 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 • 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.)

🏖️ Benefits

• Flexible work arrangements • Professional development opportunities