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Senior Staff Back End Software Engineer

📍 TEKsystems • Toronto, Ontario, Canada • Posted June 19, 2026

Contractor Posted June 19, 2026
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Job Description

Top Skills' Details

  • 10+ years designing and building large-scale distributed web platforms/APIs**, ideally supporting millions of users, high transaction volumes, and always-on 24/7 production environments.
  • 5+ years operating as a hands-on architect, Staff/Principal engineer, or technical lead**, owning end-to-end product/platform scope across multiple domains and staying at least 50% hands-on with coding and implementation.
  • Deep Java/Spring Boot backend expertise**, including REST APIs, microservices, GraphQL exposure, and strong end-to-end system design across APIs, messaging systems, RDBMS/NoSQL, containers, and infrastructure layers.
  • Proven ability to define and drive technical strategy across teams**, including roadmap ownership, ADRs, architecture decisions, tradeoff analysis, and alignment with engineering, product, and business stakeholders.
  • Track record leading complex technical initiatives from ambiguity to production**, includ...

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