Senior Software Engineer (Voyager)

Relay is a digital banking platform that gives self-made business owners the tools and know-how to be great with money—bringing clarity, confidence, and control to every dollar earned, so they can turn hard work into lasting success. We do this by replacing financial guesswork with real visibility, transforming cash flow from a constant source of stress into a clear signal owners can use to run stronger, more resilient businesses.

Our Engineering team is at the heart of building banking products that help millions of small businesses succeed. We’re on a journey to reinvent banking, and we’re looking for a curious, impact-driven Senior Software Engineer (Voyager) to join our growing team – someone who thrives on taking smart risks, experimenting boldly, and learning from every challenge.

Voyager works a step ahead, exploring what’s next for Relay. We build the technology foundations that make AI and insights possible across the product, and we partner with product teams so they can build quickly on top of them. We also act as Relay's innovation center: running fast, exploratory spikes on emerging technologies to establish what's viable before the company commits to it. That means the work spans both ends of the maturity curve, from hardening infrastructure that other teams depend on to prototyping things that may not exist yet.

If you’re excited to tackle new problems and care as much about building strong foundations as delivering an impressive end product, you’ll feel at home on Voyager. If you believe the most interesting part of applied AI is the engineering behind it, this is the role for you.

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  We're looking for people who are relentless, curious, and care deeply about the work. You're encouraged to apply even if your experience doesn't perfectly match the job description -- your perspective and drive matter more. We welcome diverse backgrounds and people who think critically, challenge the status quo, and want to help small businesses thrive.

  If you require accommodations at any stage of the hiring process, please reach out to your Talent Partner.

  Disclaimer: For compliance reasons, all offers of employment at Relay are conditional upon a successful background check and employment verification through Certn.

  Important Notice: Relay’s recruitment team only contacts candidates and corresponds from official corporate email addresses ending in @relayfi.com. We will never ask for sensitive personal data (such as bank account details, credit card numbers, or social security/insurance numbers) during the initial application or interview stages.

• You have 3+ years of full-stack software engineering experience; agentic AI experience is a plus

• You have led the development of significant components or features, delivering them successfully with minimal oversight

• You can move between exploration and production, knowing when a rough spike is the right answer and when something needs to be built to last

• You have strong judgment about emerging technology, and can evaluate what's genuinely useful versus what's currently loud

• You mentor junior engineers, sharing expertise and fostering the growth and skill development of the entire team

• You proactively drive enhancements and lead initiatives to enhance code quality, optimize performance, and streamline development processes

• You’re a lifelong learner, curious about new frameworks, best practices, and emerging technologies

• You thrive in fast-paced, dynamic environments and are comfortable navigating ambiguity and change

• You’re a collaborative team player, eager to pitch in, ask questions, and provide and receive feedback

• You take ownership end-to-end, solving problems creatively and proactively, while keeping the customer and business impact front-of-mind

• Have worked in startups or high-growth tech companies

• Have hands-on experience building with LLMs, including self-hosting or serving open models, retrieval systems, evaluation, or agentic workflows

• Have built platform or shared services used by other engineering teams

• Have experience with JavaScript - we primarily use TypeScript, React, and Node.js

• Have working knowledge of AWS services (ECS, S3, RDS, Dynamo, Lambda) and continuous deployment pipelines