Sr. Node.JS Developer
Affinity
Job Description
Sr. Node.JS Developer Duration: Fulltime, Perm Location: Remote, Canada We’re looking for a Node.JS Developer to join a growing engineering team working on large‑scale, modern software systems. This role is ideal for someone who enjoys building highly scalable platforms, contributing to technical strategy, and working closely with cross‑functional teams in a collaborative environment.
What You’ll Be Responsible For Own the design and implementation of backend services, APIs, and core platform components Help shape system architecture , ensuring performance, scalability, and long-term maintainability Work closely with product, frontend, and other engineering teams to translate requirements into technical solutions Communicate technical decisions, trade-offs, timelines, and risks to both technical and non-technical stakeholders Participate in technical planning sessions and contribute to architectural discussions Review code with a focus on quality, reliability, and maintainable patterns Diagnose and resolve complex issues in live production environments Support and guide less experienced engineers through mentorship and feedback Assist with onboarding new team members and reinforcing strong development practices Build systems designed to scale, using asynchronous and event-driven approaches Contribute to a collaborative, inclusive, and respectful engineering culture What We’re Looking For 10+ years of professional experience building production-grade software Demonstrated success delivering backend platforms end-to-end , from design through deployment Strong hands-on experience with Node.js and modern JavaScript standards; TypeScript experience is a plus Solid understanding of non-blocking, asynchronous application patterns Experience designing systems that operate reliably at scale Hands-on exposure to cloud-based infrastructure , particularly AWS services Comfortable working in Linux-based environments ; scripting experience is beneficial Experience implementing or maintaining CI/CD pipelines and automated deployments Strong background developing and supporting RESTful APIs Working knowledge of relational databases such as PostgreSQL or MySQL Strong grasp of foundational CS concepts, including data structures and algorithms Experience with NoSQL technologies or distributed caching solutions is advantageous Exposure to additional programming languages (e.g., Go, Python, Java, Rust) is considered an asset Familiarity with containerization technologies such as Docker Proficient with Git and modern collaborative development workflows