Node Backend Developer with Mongo/OAuth/Banking/Finance (Toronto)

Position

Senior Backend Developer – Node.js, MongoDB, OAuth, Banking/Finance Location

Hybrid 3–4 days a week in Toronto, ON (4x onsite requirement) Visa Status & Duration

Independent Consultant; 12+ months (Long Term Contract or CTH) What You Will Do

Develop robust backend services using Node.js, JavaScript, and REST API design, focusing on scalability and low-latency processing. Design and implement REST APIs with OAuth authentication. Optimize data persistence and retrieval strategies using MongoDB, ensuring high availability for complex client data structures. Explore and implement WebAssembly (Wasm) modules to improve performance for computationally intensive tasks within the browser or server‑side environments. Modernize legacy CLM infrastructure by transitioning to a cloud‑native, microservices‑oriented architecture. Drive the end‑to‑end delivery of technical features. Build and maintain complex data integrations that fuel the CLM data fabric, ...