Top Tech Jobs & Startup Jobs in Toronto

Lead applications systems analysis and programming across the full SDLC. Design and implement application solutions, integrate business functions, resolve complex problems, coach mid-level developers, manage projects, and ensure architecture compliance and regulatory/risk controls.

Senior full-stack developer responsible for end-to-end design, development, testing, and deployment of features on the Citi Velocity platform. Solve complex UI and server-side problems, champion information security, collaborate with users and tech teams, and mentor junior developers in an agile environment.

Lead design and hands-on delivery of low-latency, high-throughput trading platform components. Drive engineering excellence with TDD, CI/CD, observability, secure coding, AI-assisted tooling, and platform modernization while mentoring teams and partnering with product, risk, and operations to meet SLAs and regulatory requirements.

Design, develop, and deploy generative AI solutions (LLMs, RAG, vector DBs, agentic AI) for financial applications. Build AI agents, implement RAG pipelines, fine-tune and evaluate models, collaborate with engineering to productionize models (CI/CD, containers, cloud), and communicate results to stakeholders.

Provide technical and business support for Citi applications in production, ensuring stability, monitoring, incident resolution, risk assessment, runbook and contingency planning, release participation, tooling improvements, and coaching junior analysts.

Lead application infrastructure modernization including cloud migrations, container platform administration (OpenShift/Kubernetes/Docker), CI/CD and IaC automation, and development of AI-driven automation. Provide systems analysis, design, implementation, and user support while advising stakeholders and ensuring security and compliance.

Participate in design, development, testing, and support of application systems and scalable ETL data pipelines. Implement Agentic AI automation, debug and secure applications, collaborate with stakeholders, and coach junior analysts while ensuring compliance and data integrity.

The role involves designing, developing, and maintaining scalable backend services using Java and modern technologies, focusing on microservices architecture, TDD, and collaboration with teams.

Senior full‑stack developer responsible for designing, developing, and maintaining enterprise‑scale React.js frontends and Java (17+) Spring Boot microservices. Modernize Angular apps to React, build REST APIs and event‑driven pipelines with Kafka, integrate SQL and NoSQL databases, support CI/CD and containerized deployments (Docker, Kubernetes, OpenShift), and monitor production systems using ELK/Grafana.

Design, build, and maintain scalable full‑stack applications using React, TypeScript, and NestJS. Translate business requirements into architecture and design, contribute to system and API design, support CI/CD and DevOps practices, integrate AI coding tools (Claude Code) and agentic workflows, establish prompt engineering standards, and define guardrails for AI‑generated code. Work on large‑scale, production‑grade distributed systems.