Top Tech Jobs & Startup Jobs in Toronto

Lead development and ownership of a React Native mobile app (iOS and Android), shipping features end-to-end. Contribute across front-end and back-end, ensure code quality, testing, releases, scalability, and mentor engineers while collaborating with product and design.

Design, build, and maintain backend services and payment infrastructure using NestJS/TypeScript on GCP. Implement ledger systems, payment processing pipelines, and secure APIs, ensure scalability, reliability, and regulatory compliance (PCI, SOC 2), manage infrastructure as code, and collaborate with product and compliance teams to deliver production-grade financial systems.

Build and own user-facing web experiences with a front-end focus using React, Next.js, and TypeScript. Work across the full stack (Node.js/NestJS), design and integrate REST APIs, collaborate with product and design, run growth experiments, ensure accessibility/performance, write tests, support production through on-call rotations, and contribute to payments and banking integrations.

Lead and/or staff-level technical roles to design, build, and operate petabyte-scale batch and streaming data pipelines, APIs, and analytical platforms. Responsibilities include platform architecture, data modeling, query and API design, reliability, observability, performance optimization, cross-team coordination, and mentoring engineers through a transformation to workload-aware, near real-time data systems.

Design and implement high-performance, low-latency software systems, lead technical architecture discussions, and mentor team members while integrating AI technologies and ensuring scalable backend infrastructure.

Manage full sales cycle for specialized installation services in automated material handling and robotics. Build client relationships, develop proposals, collaborate with estimating/engineering/operations, negotiate contracts, maintain pipeline and forecasts, and coordinate project handoffs to operations while monitoring market and competitor activity.

The Senior Software Engineer, Voice AI will design and implement complex systems for emergency response communications, oversee AI integrations, and provide technical mentorship.