Senior Full Stack Developer

Position: Senior Full Stack Developer )
Who We Are  Tetra Unity is transforming how financial institutions deploy and manage digital asset operations ked by leading investors including Wealthsimple, Shopify, National Bank, and ATB Financial, we empower institutions to build the digital asset infrastructure that fits their business.
Our composable architecture brings together speed, flexibility, and enterprise-grade security, while maintaining full regulatory compliance and the adaptability to evolve alongside the technology landscape. With the majority of financial institutions and service providers now reporting active or planned digital asset initiatives, Tetra Unity sits at the epicentre of a generational shift reshaping global finance.
The Opportunity  We’re looking for a seasoned Senior Full Stack Developer who is ready to roll up their sleeves, lead by example, and grow into a pivotal leadership role on our technology team.
This role begins as a hands‑on development and technical lead position. For the right person, it will evolve into a close partnership with the CTO, shaping our technical direction, architecture, and team growth as the company scales.
You will lead our existing development team, providing mentorship, guidance, and clear direction while continuing to contribute as a builder. If you love shipping great products, developing the engineers around you, and want a leadership path that doesn’t require stepping away from code, this is your opportunity.
Location & Work Model  This role is based in Toronto, with a structured hybrid mode of a minimum of three days per week in the office. During the first three months of onboarding, the role requires full‑time in‑office presence to support immersion, relationship‑building, and team integration.
What You’ll Be Doing   Take ownership of critical features and systems across the stack (frontend, backend, infrastructure)
Lead our existing team of developers and provide day‑to‑day technical oversight
Collaborate directly with the CTO to design and deliver scalable, performant solutions
Mentor other developers and promote engineering excellence and knowledge sharing
Contribute to architectural decisions and long‑term technical strategy
Establish and maintain coding best practices, development standards, and technical documentation
Help drive hiring, onboarding, and the evolution of our engineering team
Leverage AI tools and techniques to automate tasks, enhance efficiency, and optimize development processes
Gradually step into a broader leadership role as trust, experience, and team size grow
Our Current Tech Stack   Frameworks &

Languages:

React 18, Type Script, Go (Golang)
Bundler & Dev Tools:
Vite, SWC, Jest, ESLint, Prettier
Routing & State:
React Router, React Hooks
Styling:
Sass, CSS Modules, Vite SVGR for SVG components
Database:
Postgre

SQL using Kysely (type‑safe SQL query builder)

Infrastructure: AWS
What We’re Looking For   5+ years of full stack development experience with strong proficiency in modern JavaScript/Type Script and backend development
Hands‑on experience with blockchain technologies and decentralized systems
Experience leading small teams or acting as a tech lead on complex projects
Strong understanding of scalable architecture, clean code practices, and CI/CD workflows
Confident in making architectural and technical decisions and explaining trade‑offs
Clear communicator who thrives in collaborative environments
Self‑driven and eager to take ownership, but comfortable asking for help when needed
Excited about growing into a technical leadership role
Comfortable exploring and working with new languages and paradigms like Go (Golang)
Nice to Have   Experience working in fintech, Web3, or regulated environments
Exposure to secure application design and infrastructure practices
Prior startup or fast‑growth company experience

Familiarity with design systems or building reusable component libraries
Why Choose Tetra   Industry at an inflection point:
Join a rapidly scaling company at the forefront of financial innovation, helping to shape the future of digital assets in Canada.
Accelerated career trajectory:
Step into a foundational seat on a growing team, with clear runway to expand your…