MagmaLabs

• 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

• Lead the architectural design and continuous improvement of scalable frontend applications • Design and implement reusable, maintainable, and testable UI components • Collaborate on full-stack implementations • Ensure optimal application performance and accessibility • Optimize application performance using modern techniques • Ensure code quality through automated testing • Participate in code reviews and maintain high engineering standards • Collaborate closely with product managers and designers

• Lead the architectural design and development of scalable Ruby on Rails applications • Optimize database performance (primarily PostgreSQL) • Ensure code quality and reliability through automated testing (RSpec, Minitest) • Mentor team members and foster knowledge sharing • Collaborate with product managers and designers to deliver solutions • Maintain comprehensive technical documentation

• Lead the architectural design, development, and continuous evolution of scalable React Native mobile applications • Build and maintain high-quality cross-platform apps for iOS and Android using modern React Native practices • Optimize application performance, memory usage, and responsiveness across devices • Design and implement integrations with RESTful and GraphQL APIs • Ensure code quality and reliability through automated testing (Jest, React Native Testing Library, Detox) • Implement secure mobile practices including authentication flows, secure storage, and data protection • Collaborate closely with backend engineers, designers, and product managers to deliver seamless end-to-end mobile experiences • Contribute to CI/CD pipelines, mobile release processes (App Store / Google Play), and DevOps best practices • Maintain comprehensive technical documentation and promote knowledge sharing within the team • Conduct code reviews, uphold engineering standards, and mentor junior engineers • Participate in architectural discussions and contribute to long-term mobile platform strategy