Top Tech Jobs & Startup Jobs in Toronto

Design and build scalable full‑stack enterprise solutions with a product focus, driving adoption of Generative AI/LLMs, agentic flows, integrations, and automation. Collaborate across teams, promote engineering best practices, and deliver iterative, high‑performance distributed systems.

Lead design, development, and deployment of large-scale Python-based Generative AI platforms and services. Drive architecture, stakeholder engagement, vendor partnerships, CI/CD, and governance. Manage multiple complex projects, mentor mid-level engineers, and ensure risk, monitoring, and integration across Citi business units.

The role involves designing, developing, and maintaining software solutions using Python, managing APIs, contributing to all phases of the development lifecycle, and mentoring junior engineers.

Provide L1/L2 production support for Equities Derivatives pre-trade systems, troubleshoot distributed architectures, manage incident lifecycle, monitor intraday and end-of-day processes (risk, PnL, market data), escalate and collaborate with development teams, follow ITIL incident/problem/change processes, participate in on-call rotas, deployments, and disaster recovery testing.

Lead design, development, and maintenance of large-scale Python-based generative AI platforms and services. Collaborate with data science, technical, and business stakeholders to define architecture, deploy GenAI products, enforce coding standards and testing, mentor mid-level engineers, manage multiple projects, and ensure governance, risk, and controls for enterprise-grade AI solutions.

Lead development and design of enterprise Java applications across frontend and backend. Drive architecture, coding standards, testing, and deployment; resolve complex problems; integrate systems; mentor mid-level developers; and ensure regulatory and policy compliance.

Design, develop, and implement mainframe application systems. Perform systems analysis, feasibility studies, estimates, and IT planning. Manage the full development lifecycle (design, construction, testing, implementation), provide user and operational support, recommend security measures, consult with stakeholders, coach junior analysts, and ensure compliance with policies and risk controls.

Lead applications systems analysis and programming activities, coordinate application system enhancements, and manage programming projects while ensuring adherence to business goals and compliance.

Participate in design, analysis, development, testing and implementation of application systems. Provide feasibility studies, estimates, risk assessment, security recommendations, user support, and act as SME and coach to junior analysts. Manage project phases and ensure compliance with policies and controls.

Lead design and development of middleware and microservices using Java and Spring Boot; optimize database interactions (Oracle, SQL, MongoDB); implement CI/CD with AI-driven testing and security; mentor engineers; integrate AI tools for code generation, testing, anomaly detection, and risk analytics; collaborate with cross-functional teams to deliver high-quality software.