TypeScript architecture and API design define this senior Toronto position, with hybrid attendance four times weekly near Union Station. Build scalable applications. This Senior TypeScript Developer role requires 10+ years of skilled software development experience. You will work across front-end and back-end applications in financial services. The focus includes distributed systems, microservices, PostgreSQL, performance optimization, and mentoring developers.

Key Responsibilities
- Design robust TypeScript applications across front-end and back-end systems
- Architect scalable solutions and make technical decisions
- Optimize application performance and identify bottlenecks
- Review code and provide constructive feedback




- Mentor junior and mid-level developers

Requirements:
- 10+ years of professional software development experience
- 5+ years of production TypeScript experience
- Distributed architectures and microservices experience
- Expert API design, RESTful APIs, or GraphQL knowledge
- Strong PostgreSQL, Git, and testing framework proficiency Apply senior TypeScript development expertise to distributed architectures, API design, PostgreSQL, and scalable applications in Toronto's financial services sector.

📌 Senior TypeScript Architect Developer (Toronto)
🏢 S.I. Systems
📍 Toronto