Senior Full Stack Engineer, AI

About the role

About Big Viking Games Big Viking Games is a Canadian gaming company focused on building, operating, and growing long-standing online game communities. Our games have entertained players for years, supported by loyal audiences, live operations, evolving content systems, product innovation, and deep player-driven economies. Our flagship titles, YoWorld and FishWorld, have served millions of players over their lifetime. These are enduring live-service virtual worlds with rich in-game economies, virtual goods, social interaction, and long-term player engagement at their core. We are entering a new phase of modernization and growth, with a focus on practical AI adoption, stronger internal tooling, faster content production, better workflow automation, and scalable systems that help our games and teams perform at a higher level. About the Role Big Viking Games is hiring a Senior Full Stack Engineer to build AI-enabled products, workflows, tools, and systems that help turn creative direction into production-ready game content at scale. This is a hands-on product engineering role for someone who can own a vertical end to end, from the data model and backend services to APIs, orchestration logic, human review workflows, and the user interface the team operates from. You will not be working on a small slice of someone else's codebase. You will be expected to take ambiguous goals, turn them into clear technical plans, build practical systems, and own the quality of the result. This role is ideal for someone who is fluent in modern full stack development, understands how to work with AI coding tools and generative AI systems, and has the judgment to know where automation helps, where human review is required, and where quality cannot be compromised. This is a hybrid role based in Toronto, with an expectation of working in office three days per week. What You'll Build You will build internal AI-enabled products, tools, systems, and workflows that help our teams create, review, approve, manage, and ship game content more efficiently. This may include: - Tools that turn creative direction into structured production workflows. - AI-assisted content generation systems with human review and approval gates. - Internal products that help designers, artists, product managers, and live operations teams produce and manage content. - Data models, APIs, queues, orchestration layers, and UI surfaces that support repeatable workflows. - Agentic workflows that break complex production tasks into reliable, reviewable steps. - Systems that track inputs, generated outputs, approvals, revisions, quality checks, and production readiness. - Workflow automation that reduces manual work while keeping creative and quality standards high. You will own the quality of what the system produces, not just the plumbing that moves data around. What You'll Do - Design, build, test, and maintain full stack applications that support AI-enabled game production workflows. - Own features end to end, including data modeling, backend logic, API design, frontend implementation, deployment, and ongoing improvement. - Build structured generation workflows that produce reliable, reviewable outputs from AI models. - Create human-in-the-loop review systems so teams can steer, approve, reject, edit, and improve generated content. - Translate ambiguous creative or operational goals into clear specifications, scoped plans, and production-ready systems. - Build internal tools that improve speed, consistency, visibility, and quality across content production workflows. - Partner with engineering, product, design, art, live operations, and leadership to understand workflow pain points and build practical solutions. - Implement approval steps, audit trails, retries, staged processing, idempotency, and other patterns required for reliable production systems. - Use AI coding agents and assistants as part of your daily workflow, while maintaining strong engineering judgment and code quality. Review generated code, model outputs, workflow logic, and product behavior with a high bar for accuracy and usability. Improve system reliability, observability, documentation, maintainability, and developer experience. Contribute to a practical AI-first engineering culture focused on speed, quality, and measurable business impact. What You Bring - Several years of experience shipping production full stack web applications. - Strong TypeScript and Node.js experience. - Production experience with React, Next.js, or similar modern frontend frameworks. - Strong SQL and Postgres experience, including schema design, query performance, data integrity, and relational modeling. - Experience owning features or products end to end, not just working on one layer of the stack. - Strong product and engineering judgment, with the ability to identify when output is wrong, incomplete, fragile, or subtly off. - Experience turning ambiguous goals into clear specs, technical plans, and deliverable milesto

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