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Senior Software Engineer, Design Systems

Javelin Venture Partners 🇨🇦 Ontario, Canada

$180,200 - $233,200 (CAD) Full-time Senior

Build AI-assisted workflows connecting Figma, prototypes, and Thumbtack’s production frontend, and evolve the Thumbprint design system to work effectively with agentic tooling. Partner with design, Developer Experience, and Frontend Infrastructure teams, gather user feedback, and evaluate emerging AI development tools.

Responsibilities

  • Build AI-assisted workflows connecting Figma, prototypes, and Thumbtack’s production frontend, and evolve the Thumbprint design system to work effectively with agentic tooling. Partner with design, Developer Experience, and Frontend Infrastructure teams, gather user feedback, and evaluate emerging AI development tools.

Requirements

  • Requires 6 or more years of software engineering experience, strong production frontend experience, and hands-on fluency with TypeScript, React, and related build, test, and deployment tools. Candidates should have practical experience with AI-assisted development tools, a record of building tools adopted by others, and strong collaboration skills; design system experience is welcome but not required.

Key Skills

Software engineering Frontend development TypeScript React Build tools (Webpack, Babel) Testing frameworks (Jest, React Testing Library) Deployment pipelines AI‑assisted development tools Design system development Tooling for design‑developer handoff Collaboration with design teams Developer Experience (DX) Frontend infrastructure User feedback gathering Problem solving Agile methodology Version control (Git) Continuous integration/continuous deployment (CI/CD) Performance optimization Mentoring junior engineers

About Javelin Venture Partners

Javelin Venture Partners was founded by former entrepreneurs with a first-hand appreciation of what it takes to develop a company from concept to thriving enterprise. We have been in your chair…resource constrained and exhausted, but driving forward with full confidence that your start-up has incredible potential to change the world. We’re here to help – providing capital, guidance, access to an expansive network and most importantly, entrepreneurial DNA. We invest in early-stage tech companies with incredible potential, managed by teams of energetic, trustworthy and capable leaders. Key focus areas include cloud, big data, enterprise software, SaaS, e-commerce, mobile, health/wellness and digital media. We look for advanced innovations, where the addressable market size is substantial and strong competitive advantages exist. Our typical investment is between $250K to $4 million, with reserves for follow-on investments. Our office is located in San Francisco, but we invest throughou

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