Senior Fullstack Engineer in London

Join to apply for the Fullstack Engineer role at Stacks. This role is based out of our Amsterdam office or London office. Stacks is an office‐first company that believes great products are made when we are together.

At Stacks, we're transforming the way finance teams approach one of their most critical processes: the monthly close. For mid‐to‐large enterprises, the close is a painstaking, manual effort that pulls finance teams away from strategic initiatives to focus on repetitive, tedious tasks. We believe this needs to change. Our vision is bold: with the power of AI, we're reimagining the monthly close to be as simple as a single click—providing the most accurate, detailed financial insights on day one of each month. By giving finance teams their time back, we enable them to focus on high‐impact, strategic work that drives their companies forward.

Our team is a blend of finance, product, and technical experts from top‐tier companies like Uber, Plaid, Miro, Mollie, and Bunq, united by the drive to create a game‐changing solution. Backed by leading VCs and executives from Stripe, Plaid, and OpenAI, we're ready to reshape the future of finance.

About The Role: At Stacks, a Product Engineer is a customer‐obsessed, product‐focused software engineer. You're driven by outcomes, not just tasks. You are passionate about solving customer problems and constantly iterating to create elegant solutions. As part of a small, autonomous team, you'll wear many hats and have a direct impact on the product. To thrive as a Product Engineer, you should be full‐stack, though we recognize that everyone has their strengths. We're specifically looking for a full‐stack engineer with a strong front‐end focus.

What You'll Do:

• Build and iterate on our front‐end applications using Next.js and React.
• Write robust TypeScript code for both front‐end and back‐end services.
• Serialize data efficiently with Protobuf.
• Store and retrieve data using PostgreSQL and Redis.
• Deploy applications to Google Cloud and manage infrastructure with Terraform.
• Work closely with product, design, and data teams to ship high‐quality features quickly.

What You Need:

• 3+ years of experience building impactful products as a software engineer.
• Ridiculous ambition and drive to achieve big goals.
• Comfortable with ambiguity and adaptable to change.
• Passionate about your craft – your work carries you away, and it never feels like work.
• Love the process of building and shipping impactful products.
• Committed to a growth mindset, always eager to learn and improve.
• Thrive in a fast‐paced, high‐velocity environment.

What's In It For You:

• Cutting‐Edge Technology: Work at the forefront of the Gen AI revolution.
• Top‐Tier Team: Collaborate with talented colleagues from companies like Uber, Plaid, Miro, and Mollie.
• Foundational Role: Become one of the founding pillars of an exciting company, backed by Tier 1 VCs and executives from OpenAI, Stripe, and DeepMind.
• Inspiring Workspace: Enjoy the view of the Amsterdam canals in our stunning office.

The Hiring Process:

• 30‐minute screening call with our talent partner (Peter) to discuss your background, motivation, experience, and practical details.
• 30‐minute calls with our founder (Albert) and team members to dive deeper into your experience.
• 2 coding interviews.
• Onsite with our team.
• Offer!

Seniority level: Mid‐Senior level

Employment type: Full‐time

Job function: Engineering and Information Technology

Industries: Software Development