Software Developer - Applied AI

About Blue J Blue J is the leading generative AI solution for tax professionals and one of Canada’s fastest-growing AI companies. Headquartered in Toronto, we’re a high-growth B2B SaaS company building industry-leading tax research software that helps accountants find accurate answers to complex tax questions with greater speed and confidence.

Backed by a $122M USD Series D funding round, we’re scaling rapidly across North America and the UK while continuing to push the boundaries of what’s possible with AI. By combining advanced technology with deep tax expertise, we empower tax professionals to work more efficiently, make better decisions, and deliver greater value to their clients.

We’re now looking for a skilled Software Developer - Applied AI who thrives in a fast-paced environment and is passionate about shaping the future of AI-assisted tax research. Your work will directly contribute to enhancing our product and AI capabilities, ensuring our technology remains at the industry’s leading edge.

About The Engineering Team As a Software Developer - Applied AI you’ll be joining a world-class engineering team capable of delivering award-winning products at industry leading levels of speed and quality.

We are looking for someone that shares our desire to make an impact and our belief that high quality-standards contribute to our ability to move fast. As relentless learners, we are constantly looking for ways to hone our craft and share our knowledge. We value software design fundamentals and the deep thinking required to ensure we’ll continue to move fast in the future. And fast we are - we ship many of our services through to production many times per day!

A Note on Location We are excited to meet with qualified candidates and are grateful for everyone’s interest, this is a remote position that requires applicants to be within driving distance of Toronto for 1-2 in person meetings a quarter. All candidates must be eligible to work in Canada.

As a Software Developer - Applied AI on our Tax Intelligence team, you’ll be joining a world-class engineering team building the agentic and retrieval-augmented generation (RAG) systems that power Blue J’s leading tax work platform.

We value software design fundamentals combined with data-driven experimentation that allows us to deliver value in quick increments. We deploy many of our services through to production many times per day. We pair that with an experimental mindset: we use data to find problems, form hypotheses, and test them in short, iterative feedback loops, both before and after we ship.

About The Role We are looking for a seasoned software developer capable of delivering significant impact directly and indirectly through peer mentorship. You will be responsible for the design and implementation of critical parts of the agentic and RAG operating system behind our tax work platform.

We’re looking for people with a range of profiles, and you may see yourself in one or more of these:

• Platform foundations: distributed systems, reliability, fault recovery, and strong data models and contracts
• Agentic and RAG platform: the retrieval, orchestration, and agent layers built on top of those foundations
• Product experience: full-stack React features that put those capabilities in the hands of tax professionals
• Evaluation and data-driven decisions: synthetic evals before release and mining of user data after release, turned into actionable insights that drive rapid iteration

What You’ll Be Doing

• Challenging yourself to design, plan, and deliver new agentic and RAG capabilities, platform foundations, and product features
• A substantial amount of coding, primarily in TypeScript, while leading other developers to help you deliver mission critical projects in an iterative and incremental fashion, regularly unlocking customer value along the way
• Using data to identify problems, forming hypotheses, and validating them through short, iterative feedback loops both before and after release
• Building and evolving a feedback loop that shows the impact of what we ship and guides where we focus next
• Coaching developers in the craft of writing beautiful code covered by well written automated tests while nurturing the long-term health of the systems we work on
• Giving impactful feedback in an empathetic manner to those around you
• Helping elevate our engineering standards, tools, and pract…