About the role

Senior Product Engineer building cutting-edge software solutions for nonprofits at Goodstack, a fast-growing impact startup. Join a team dedicated to creating scalable products that make a difference.

Responsibilities

Build high-quality, scalable systems. Often, owning a product from concept to shipping.
Engage with nonprofits to build a deep understanding of their problems.
Day to day, you will be expected to write code and be involved in planning, product, and delivery, making full use of AI tools such as Claude Code.
Be involved on a highly technical level, helping to establish and build best practices regarding technologies used.
Ensure high code quality through automated testing, CI/CD, and monitoring.
Work closely with product, design, and engineering peers.
Contribute to product strategy through a user-centric, data-driven mindset.
Participate in architectural decisions that shape the platform.
Mentor other engineers and help grow the team’s technical capabilities.

5+ years of experience in software development (Typescript/ React/NextJS preferred).
Strong understanding of databases, particularly PostgreSQL.
Comfortable using AI tools to build solutions, as well as building AI-driven products.
Familiarity with monitoring systems, AWS, CI/CD pipelines, and automated testing.
Comfortable getting stuck into the whole product lifecycle, including design, testing, and analytics.
Previously built a great product; you know what it takes to build something that users truly love, and you have the technical expertise to scale it.
A knack for making powerful tools that are easy to use for even the least technical users.
Ability to reason from first principles and build solutions for open-ended problems.
Knowledge of using data and experiments to iterate on improving a product.
Enjoy the challenge of balancing pragmatism and speed with building robust, maintainable solutions (you know how to use tech debt as a tool and when it needs to be addressed).

Salary reviews and share options becoming an integral part of our growth and share in the company's success
Goodstack’s Workplace Giving
Vitality Plus - Private health insurance
£250 Brighten your day annual budget
£1000 Learning & development annual budget
Goodstack library
Tasty Tuesday! Office lunch is on the company
Slow run club Wednesday
Paid days off to volunteer for non-profit causes
Paid days to attend conferences
Paid day off on your birthday!
25 days annual leave, plus paid public holidays
Paid sick leave
Paid wellness leave
Parental leave
Workplace nursery scheme
Pension (with tax-efficient salary sacrifice option)
UK cycle-to-work scheme
Ecologi carbon offsetting
Flexible working hours
WFH budget upon joining
You're always welcome to pop in more often if you enjoy the buzz of being in the office. It's a warm, friendly space right in the heart of London
… and so much more