Job Specifications
About Zelt
Zelt is on a mission to rebuild how organisations run. Our all-in-one platform helps modern companies manage their people across payroll, onboarding, time off, IT provisioning and more, in a seamless and automated way.
We are the only platform on G2 named a Global Momentum Leader across HR, Payroll and IT, and we are just getting started. Our product is technically ambitious, structurally different from anything else on the market, and already trusted by forward-thinking companies.
Why This Role Matters
As a Senior Fullstack Engineer at Zelt you will own product development end to end, from architecture to marketing events.
This is the ideal moment to join: Zelt has product-market fit and strong backing, yet it is still early enough that your decisions will shape the platform’s architecture and user experience for years to come. Every feature you build will reach customers quickly and be visible in the product.
You will join a lean, product-focused team where your input shapes both what we build and how we deliver it. This is a chance to work with a diverse, international team on a product that positively impacts customers every day.
What You Will Do
Design, build and maintain scalable applications across the stack using React, TypeScript, Node.js, NestJS, PostgreSQL, AWS
Take end-to-end ownership of features including architecture, testing, deployment and iteration
Work closely with product and design to align technical execution with user needs
Write clean, maintainable, well-tested code and champion engineering best practices
Improve developer workflows and tooling (GitHub, GitHub Actions, Slack, Linear, Sentry, SolarWinds) to keep the team fast and productive
Contribute to infrastructure (Docker, AWS ECS, RDS, S3, SES, CloudFront, CDK) and ensure reliability at scale
Share knowledge, mentor peers and foster a collaborative, learning-oriented engineering culture.
What We Are Looking For
Strong experience delivering fullstack applications in fast-moving product environments
Deep expertise in React, TypeScript, Node.js, NestJS, PostgreSQL and experience running services on AWS
Understanding of modern infrastructure: Docker, AWS ECS/RDS/S3/SES/CloudFront/CDK
Experience with developer and collaboration tools: GitHub, GitHub Actions, Slack, Linear, Sentry, SolarWinds
Excellent communicator and team player, open to learning and sharing knowledge with others
Sense of ownership and pride in your work, motivated by outcomes rather than tasks.
Nice To Have
Startup or scale-up experience in small, fast-moving teams
Familiarity with CI/CD, observability and scaling infrastructure
A track record of improving performance, code quality or developer experience.
Why Join Zelt
Get equity in a high-growth startup backed by the investors of Notion, Spotify and Airbnb
Work with a diverse, international team on a product that delivers real value to customers every day
Direct ownership and visible impact from day one, your code will power systems that thousands of people use daily
A culture that values technical excellence, curiosity and continuous learning
Competitive compensation, benefits including health insurance, and the opportunity to join at the right time with product-market fit already achieved and big technical challenges ahead.
Your work at Zelt will not disappear into the background, it will help define how modern companies run their people operations.
About the Company
Zelt is a next generation platform for people operations. With Zelt, enterprises can manage their whole workforce across the employee lifecycle in a single system, enabling them to simplify and automate people processes across HR, Finance and IT functions dramatically.
Zelt’s boasts a broad range of applications such as onboarding, holidays, payroll, expenses, reviews and asset tracking, which integrate with each other out-of-the-box and are running on top of powerful platform services for workflow automation, permissionin...
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