Full Stack Tech Lead - Senior

Key Responsibilities

• Lead the technical design and execution of full-stack web applications, ensuring alignment with business objectives and technical standards
• Evaluate and select technologies, frameworks, and tools — including AI-assisted development tooling — to improve team productivity and code quality
• Own estimates and technical delivery plans for your project area, and surface risks early
• Craft elegant, documented, and sustainable code spanning our full web stack, remaining ready to provide support for our native mobile environment when required
• Develop and optimize APIs, databases, and user interfaces
• Use AI-assisted development tools fluently as a standard part of how you write, review, and ship code

Team Collaboration & Product Partnership

• Mentor engineers, fostering a culture of continuous learning and improvement
• Conduct code reviews and provide constructive feedback to maintain high coding standards
• Act as the primary technical partner to product managers on your project — informing scope, sequencing, and tradeoffs

Required Qualifications

• 6+ years of professional experience in software development with a focus on full-stack development
• Deep experience with modern frontend frameworks (e.g. React, Vue, Angular, or SvelteKit) — we use SvelteKit at Mill but recognize that strong React/Vue/Angular experience is highly transferable, especially with AI-assisted tooling, so prior SvelteKit experience is preferred but not required
• Strong backend experience with TypeScript/Node.js; comfort with serverless architectures (e.g. AWS Lambda) is a plus
• Solid understanding of SQL and NoSQL database systems
• Experience with cloud platforms (we run AWS) and modern deployment workflows
• Fluency with AI-assisted development workflows (e.g. Claude Code, Copilot) as a genuine part of your day-to-day practice — not occasional or exploratory use
• Strong software architecture fundamentals (e.g. microservices, serverless)
• Excellent problem-solving and debugging skills

Preferred Qualifications

• Experience with our specific stack: SvelteKit (web, deployed on Vercel), React Native (mobile), AWS Lambda with CDK (TypeScript) and Middy
• Familiarity with DevOps practices and infrastructure as code (e.g. Terraform, CDK)
• Strong understanding of security best practices in web development
• Prior experience working at a hardware company, particularly collaborating with firmware teams — we build physical devices, not just software, and comfort working alongside hardware/firmware engineers is a plus
• Prior experience in a people-management role, or clear interest and readiness to grow into one over time. This role does not manage people today, but we're looking for someone open to taking on direct reports as the team scales