Full Stack Engineer, Total Media

As an Engineer at StackAdapt, you will be directly involved in the development of our advertising platform, producing production-level code that will have a direct impact on the success of our product. You will work with large data sets and have exposure to modern tech stacks around GoLang, Ruby on Rails, React, GraphQL and more. StackAdapt's engineering organization believes in working collaboratively and cross-functionally. You will get the opportunity to work in a diverse and flexible culture with dedicated career paths to help you succeed. The Total Media team is focused on building a brand-new ad operating system for the platform. They are developing the foundational infrastructure and gateways required to interact and orchestrate with major digital ecosystems. StackAdapt is a Remote First company, we are open to candidates located anywhere in Canada for this position.

Responsibilities

Build and operate integrations that support Ads campaign management lifecycle; Implement a lifecycle state machine and orchestration for activation and updates across entity hierarchies, across multiple advertising and marketing partners; Build reliability patterns for production integrations: rate-limit handling, pagination, batching, circuit breakers, and drift detection/reconciliation for eventual consistency; Collaborate with team members on designing scalable, well tested, and well documented web architecture, including APIs and backend systems; Be able to take responsibility and ownership of projects from start to finish

Requirements

2+ years of full-time work experience building highly performant web applications; Strong backend experience building API-driven products, including GraphQL and REST; Proven experience integrating third-party / partner APIs in production, including handling rate limits, pagination, retries/backoff, and partial failures; Designing idempotent create/update/activate operations; Translating partner validation errors into clear, actionable user-facing messages; Develop clear internal documentation to help engineers run the application locally and troubleshoot/debug issues efficiently; Experience implementing OAuth 2.0 (authorization code flow + refresh tokens) and secure credential handling (scopes/permissions, token rotation, secrets management); Strong fundamentals in data modelling and system design for integrations: internal ↔ external ID mapping, status/state mapping, drift detection, and repair/replay tooling; Comfort using AI-assisted developer tooling and/or building agentic workflows to accelerate delivery and improve operational quality

Benefits

Highly competitive salary; Retirement/401K/Pension Savings globally; Competitive Paid time off packages including birthdays off; Access to a comprehensive mental health care program; Health benefits from day one of employment; Work from home reimbursements; Optional global WeWork membership for those who want a change from their home office and hubs in London and Toronto; Robust training and onboarding program; Coverage and support of personal development initiatives (conferences, courses, books etc); Access to StackAdapt programmatic courses and certifications to support continuous learning; An awesome parental leave program; A friendly, welcoming, and supportive culture; Our social and team events; Additional compensation such as annual bonuses, commissions, equity awards, and a comprehensive benefits package