League is one of the fastest-growing technology companies in Canada and the leading healthcare experience platform. That gap costs health plans and health systems money, and it costs people their health. Health plans and health systems trust us to do this at scale.

As a Senior or Staff Software Engineer, Backend on our Platform Engineering team, you bring deep technical expertise to the design and delivery of the foundational services and developer tools that power League’s engineering organization; You take ownership of complex, ambiguous problems across the platform’s backend systems, from service architecture to production reliability, and set the technical bar through your own work. At Senior level, that ownership centers on your own services and team. setting architecture direction, raising engineering standards platform-wide, and mentoring senior engineers. Both levels partner closely with Platform Engineering leadership, Product, and cross‑functional stakeholders to ensure the platform scales with League’s growth.

Design, build, and maintain scalable, resilient backend platform services and internal developer tooling using Go, Kubernetes, MongoDB, and Google Cloud Platform (GCP) partner with Product, Design, and Engineering to shape solutions, clarify assumptions, make pragmatic trade‑offs, and carry work from technical design through production delivery and operation Lead technical design and planning for platform initiatives, authoring and reviewing architecture decision records: at Staff level, own architecture direction across multiple pods Contribute beyond your primary backend specialization across services, data, infrastructure, web, and mobile codebases when needed to deliver pod outcomes using AI‑assisted development to navigate unfamiliar stacks, while applying strong engineering judgment and remaining accountable for the quality of every change Apply advanced AI‑assisted engineering practices; coding agents, multi‑agent workflows, context engineering, MCP and tool integrations, and AI‑supported planning, implementation, testing, debugging, and code review - while remaining accountable for understanding, validating, explaining, and operating every change you ship Uphold engineering quality through rigorous code review, automated testing, and performance monitoring across the platform Debug and resolve complex production issues, including participating in an on‑call rotation to support platform reliability Mentor and coach engineers, raising the bar for best practices: at Staff level,



mentor senior engineers and influence standards platform‑wide Partner with Engineering leadership and cross‑functional stakeholders to shape the platform roadmap and drive adoption: at Staff level, represent Platform Engineering in cross‑pod forums and contribute to hiring 7+ years (Senior) or 10+ years (Staff) of experience building and operating scalable backend software in production, with a track record of increasing scope and technical ownership ~ Experience with MongoDB for data persistence, and building or integrating authentication/authorization systems such as OAuth ~ Demonstrated experience building and maintaining automated test suites and driving engineering best practices ~ Hands‑on use of AI‑assisted engineering tools (Cursor, Claude Code, or equivalent) as a genuine daily multiplier. At Staff level, a track record of advanced AI‑assisted practices (agents, MCP/tool integrations) and using AI beyond code generation ~ Operates with a high degree of autonomy, exercising sound technical judgment on ambiguous or open‑ended problems with minimal guidance (at Staff level, sets direction across pods, not just your own team) Sets technical direction and best practices for the team, and is looked to as a go‑to technical resource by peers Proactively identifies risks, technical debt, and system‑level opportunities, and drives them to resolution Communicates complex technical concepts clearly to both engineering and non‑engineering stakeholders Comprehensive Health Benefits: We prioritize your well‑being with complete medical, dental, and vision coverage Bonus Program: Be rewarded for your contributions with our performance‑based bonus program Spending Accounts: Manage your healthcare and dependent care expenses with tax‑advantaged spending accounts Benefit from guidance and support from experienced leaders in your field Flexible Ways of Working: AI Fluency & Ways of Working At League, we are an AI‑native organization . We expect all employees regardless of role or level to thoughtfully leverage AI to improve the quality, speed, and impact of their work.

Use AI tools as part of your daily workflow to enhance productivity, problem‑solving, and decision‑making (e.g.,



drafting, analysis, coding, research, or process automation) Apply judgment and accountability when using AI by reviewing outputs for accuracy, bias, and quality before use Continuously learn and adapt as current AI tools and capabilities emerge, incorporating them into your ways of working Identify opportunities to improve how work gets done from personal productivity to team‑level workflows by leveraging AI effectively Operate with strong data responsibility and security awareness , especially when working with sensitive or regulated information Individual Contributors: Use AI to improve personal productivity and quality of output Senior ICs / Managers: Integrate AI into team workflows and improve processes Drive AI adoption at the organizational level and shape how work is done across teams Demonstrated experience using AI tools in a practical, responsible way Ability to balance efficiency with quality and sound judgment We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. Compliance with Information Security Policies Compliance with League’s secure coding practice Responsibility and accountability for executing League's policies and procedures Notification of HR, Legal, Compliance & Security of any incidents, breaches or policy violations Canada‑specific compensation range below for this full‑time position is exclusive of bonus, equity and benefits. The salary range is intentional to account for the performance and career progressions a Leaguer will experience in the role throughout their time at League.

Compensation range for Canada applicants only: $150,000 - $206,000 CAD We have a mix of office‑centric roles based in our vibrant Toronto office, and remote‑eligible roles based anywhere in Canada or US. Regardless of the role’s posted location, all Toronto‑area Leaguers (living within 65 km of our downtown HQ) collaborate in‑office Monday through Thursday. Depending on your distance to the office, you’ll enjoy 10 or 20 Flexible Remote Days each quarter for focus and deep‑work time.

Use of AI Notice League may use Artificial Intelligence (AI) tools to assist in the screening of applicants for this position. Please check out our stance on using AI in recruitment here.

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📌 Senior or Staff Software Engineer, Backend (Toronto)
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