Senior Staff Engineer - Full-Stack, Solution ArchitectureAbout the role Our client is building an AI-centric engineering platform where brands operate as self-reliant, B2B-style customers. You will own product features end-to-end across the full stack - leveraging AI agents to multiply delivery throughput - while architecting robust, highly-available systems on a stable, brand-agnostic platform. This is a full-time IN-OFFICE position in Toronto.

Own delivery of product features end-to-end: design, build, verify against acceptance criteria, and ship to production. Build and operate 3rd-party and B2B integrations on the platform, delivering brand- and customer-specific features on top of a shared core. Use AI coding agents and automated verification to accelerate delivery, working within engineering quality gates and independent review.

Set technical patterns and unblock yourself and others across a fast-moving, multi-workstream environment. Must-haves - technical: ~ Senior/staff experience building software end-to-end: .NET / C# REST APIs and Next.Js / React front-ends with server-side rendering and real-time streaming (Server-Sent Events). ~ Data. Hands-on with MongoDB, Redis (sessions, caching, sorted-set/leaderboard patterns)



and PostgreSQL; Building producers/consumers on an event hub / Apache Kafka; Designing and delivering integrations against external and game-provider APIs, and building brand-/customer-specific capabilities on a stable, brand-agnostic platform. ~ AI-assisted delivery.

Demonstrated use of AI coding agents/tooling to multiply throughput, and fluency working within automated verification (testing against acceptance criteria, regression, edge cases). ~ Hands-on production monitoring. Operating production monitoring and issue triage (Sentry or equivalent); Proven track record of delivering robust solutions within tight, fixed timeframes - quality and speed together, not one at the expense of the other. Exposure to cutting-edge AI and automation technology that is actively transforming how marketing and operations are run at scale Genuinely compelling projects with modern tooling, and the freedom to bring your own ideas to the table A collaborative, high-performance culture where ambition, accountability, and innovation are valued and rewarded A competitive salary plus discretionary bonus Comprehensive health benefits, including extended healthcare, dental, and vision coverage.

On-site leisure facilities to switch off and recharge during the day. On-site leisure facilities and on-site parking #

📌 Sr Staff Engineer - Full Stack (Toronto)
🏢 Futuretek
📍 Toronto