Senior Full Stack Engineer
About The Position
Mill is a waste prevention technology company focused on eliminating food waste through smart systems and infrastructure for homes, businesses, and municipalities. They transform food scraps into valuable resources like chicken feed. Mill has deployed tens of thousands of residential food recyclers and is launching Mill Commercial, an end-to-end solution for commercial food waste management. The company values building easy-to-use, beautifully designed technologies that keep food within the food system. The company is seeking a highly skilled Senior Full Stack Engineer to join their engineering team. This is an individual contributor technical leadership role reporting to the Director of Software Engineering. The engineer will drive the technical direction of their project area, write high-quality code across the stack, and mentor other engineers. Mill operates with a full-stack approach where engineers work across the entire stack, typically leaning towards frontend or backend based on strengths, and teams are organized around projects. Engineers will have opportunities to rotate onto new projects and parts of the codebase. AI-assisted development is a core part of their workflow, and senior engineers are expected to contribute to raising the bar for its use.
Requirements
- 5+ 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)
- Strong backend experience with TypeScript/Node.js; comfort with serverless architectures (e.g. AWS Lambda)
- 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
Nice To Haves
- Prior SvelteKit experience is preferred but not required
- 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
Responsibilities
- Lead the technical design and execution of full-stack web applications, ensuring alignment with business objectives and technical standards
- Design and implement scalable, secure, and efficient full-stack solutions
- Own estimates and technical delivery plans 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 API and user interfaces
- Use AI-assisted development tools fluently as a standard part of how you write, review, and ship code
- Mentor junior engineers, fostering a culture of continuous learning and improvement.
- Conduct code reviews and provide constructive feedback to maintain high coding standards.
- Communicate technical constraints and tradeoffs clearly to your project's product manager.
- Champion best practices in testing, CI/CD, and deployment
- Troubleshoot and resolve technical issues, ensuring minimal downtime and disruption
- Monitor and optimize application performance
Benefits
- value of benefits or a potential equity grant
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
