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Senior Full-Stack Engineer, Internal Applications

Toronto🌐 Remote💼 Full-time🗓 2026-09-15 → 2026-09-27

Core

Building internal tools and platforms that enable ML researchers and annotators to create and scale large language models.

Role type

Senior Full-Stack Software Engineer (Internal Tooling)

Builds

Internal applications, browser-based interfaces, and server-side systems for model development workflows

Domain

Enterprise AI / Large Language Model Infrastructure

Deliverable

production ML models | product features

Required skills

Next.js, TypeScript, React, Python, complex SQL queries, system architecture, technical documentation

Preferred skills

Experience shipping products with many stakeholders, adopting new technologies, explaining complex technical concepts to diverse audiences

Technologies

Next.js, TypeScript, React, Python, SQL

Responsibilities

Craft code for browsers and servers, collaborate with ML researchers and product managers, conduct architectural design sessions, remove engineering roadblocks, build resilient mission-critical systems

Seniority

Senior, hands-on IC

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