Senior Backend Engineer

If you’ve been looking to join a fast-growing startup with a bold vision of a world where doing good is built into everything we do, then you’ve found the right place!

Backed by General Catalyst, the same investors behind Stripe and Airbnb, we’re one of Europe’s fastest-growing SaaS companies – building the technology that enables global enterprises to give, volunteer, and fund with confidence.

Our mission at Goodstack is to revolutionize how the world does good 🌎.

As a Series A social impact startup, we power global change through technology. We enable companies to seamlessly integrate positive impact into what they do through a unified platform while supporting nonprofits in gaining access to cutting-edge technology and finding new funding streams.

Global brands, including Google, OpenAI, TikTok, LinkedIn, HSBC, Atlassian and Twilio - as well as thousands of nonprofits, including the Red Cross, Cancer Research, and Oxfam - use Goodstack to make a difference.

In 2025 alone, we have facilitated $5 billion in donations to good causes. But this is just the beginning. We're building the world’s leading platform that powers donations to nonprofits globally.

To keep our momentum and deliver consistently high value to our partners, we need incredible people to help us on our journey – we need you 🫵

In this role, you will be part of our Payment Operations Team. This team implements APIs and user experiences to expand the payments platform for our partners (internal and external). You will be part of an autonomous, cross-functional product team able to make its own decisions based on the objectives set by the business. You will report directly to the Engineering Manager.
In return, we'll give you a platform to exercise your creativity and innovate to your heart's content.

• Help implement the APIs and user experience to expand the payments platform for our partners.

• Be involved on a highly technical level, helping establish and build best practices in terms of technologies used.

• Day to day you will be expected to write code and be involved in planning, product, and delivery.

• Knowing your team mates well and feeling comfortable in your new surroundings.

• Understanding the giving product and starting to make suggestions about its evolution.

• Have developed a deep understanding of the platform architecture and continue becoming a subject matter expert, suggesting plans for engineering improvements.

• Will have found the free sock merch in the office.

• 5+ years of experience designing and building APIs on top of databases (we use Postgres).

• Designing and developing secure, scalable, resilient, and observable systems.

• Agile development and deploying to production regularly with CI/CD.

• In-depth knowledge of Node.js and TypeScript.

• Experience in monitoring systems, continuous integration, and automated testing.

• Strong knowledge of and enthusiasm for back-end architectures.

• Strong data-driven problem-solving skills.

• Can thrive in the quickly evolving environment of a start-up.

• A bias to action; you consider the short, mid, and long-term solutions and take a pragmatic approach to implementing them.

• The keen motivation to contribute to a product and vision.

• An excellent communicator with a strong drive to see large projects through to completion.

• Some level of DevOps (AWS, CI/CD, ECS, Docker, Terraform).

• DevOps experience (Docker, AWS, Terraform).

• Knowledge of domain-driven design.

• Tea drinking 🫖.

💰 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 (Wednesdays)

⭐️ 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

⚖️ Flexible working hours

🖥️ WFH budget upon joining

🧓🏽 Pension

🚴🏾 UK cycle-to-work scheme

🌳 Ecologi Carbon Offsetting

🏡 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

Since 2017, Goodstack has been at the forefront of creating a future where good will be built into everything we do. From daily commutes to weekend activities or grocery shopping, we envision a world where creating positive change is seamlessly integrated into our everyday lives. In this future, the depth and breadth of impact we can make through everyday actions will expand dramatically – benefiting both businesses and the world.

Businesses are expected to deliver on both profit and purpose and those that don’t are falling behind. We’re here to make it easy for any company, anywhere in the world, to integrate good into what they do. Doing this empowers everyone – companies, employees, consumers, and communities – to contribute to positive change and take meaningful action.

Let's do this! 💜

We take pride in our diverse and growing team representing 20+ nationalities across 5 continents 🌍! Our continued expansion provides us with opportunities to embrace and celebrate different backgrounds, perspectives, and experiences, essential to our success. We actively seek and welcome applicants from all walks of life, regardless of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

A team that represents the world that we are trying to support is a wiser, more knowledgeable and stronger one. We’re excited for you to bring your experience, yourself and your special lemon twist to Goodstack to propel us forward in striving to create a better world for us all.

Check out our Careers Page for more details!