We are looking for a Senior Technical Product Owner to join our BUX team based in Amsterdam.

The Broker team owns the backend systems that handle all investing and saving account operations at BUX. This includes how orders are routed and processed across multiple security types (e.g., stocks, ETFs, ETCs), how core broker functions work, such as order placement and execution, how quotes are processed and used, how integrations with 3rd-party systems operate, and how payments and cash-flow behaviour are handled, how corporate actions are applied, and how savings accounts are created and updated. These systems run behind the scenes but are foundational to the accuracy, reliability, and safety of the entire BUX experience.

The team is fully backend-focused, consisting of staff and senior backend engineers, and a technical lead. We work closely with Operations, Back Office, Compliance, Finance, Data and AI, and the App team, even though their work is not user-facing, it underpins every action customers take in the app.

We value responsibility demonstrated through technical curiosity, precision, reliability, and a deep appreciation for the systems that quietly keep the entire investment and savings platform running.

What you will do

As a Product Owner, you will define how backend systems evolve, ensure they remain robust and scalable, and guide the development of new investing and saving features. You will prioritise backend work, shape system behaviour through clear specifications, and align technical development with operational and regulatory needs.

This role is a great fit if you enjoy deep technical domains, like understanding how complex systems work behind the scenes, and are motivated by building reliable, high-integrity infrastructure that quietly supports thousands of customers every day.

In this role, you will:

• Define the product strategy and roadmap for the Broker domain, ensuring clarity, technical feasibility, and high impact

• Translate complex backend behaviour into clear requirements and user stories with well-defined system rules, edge cases, and expected outcomes

• Lead a backend engineering scrum team, driving effective planning and ensuring predictable, high-quality delivery

• Collaborate with third-party providers and data partners to design and deliver stable integrations for execution, market data, and savings account logic

• Own the rollout of backend changes, ensuring controlled, low-risk deployments and maintaining system stability, accuracy, and continuous improvement

• Monitor system performance and work with engineers to resolve bottlenecks, improve scalability, and support new investing and saving functionality

What you need to succeed

• 5+ years of experience as a Product Owner in a backend-heavy or technical domain, ideally within fintech, brokerage, or trading systems

• Strong ability to understand backend systems, APIs, data flows, and architectural constraints, and translate that knowledge into clear, effective product decisions

• A structured, analytical mindset with high attention to technical detail when working with financial, operational, and regulatory logic

• A strong interest in and awareness of how product decisions impact customer-facing UX, ensuring that even technical choices ultimately support a great client experience

• Excellent communication and collaboration skills, working closely and efficiently with backend engineers, technical leads, and operational stakeholders

• Interest or familiarity with investing, saving products, or financial markets; a technical background is considered a plus

• Ability to use AI tools to improve documentation, system mapping, technical analysis, and workflow optimisation 

How we hire

To learn more about our approach to hiring and how to prepare for your interviews, check out our How we hire section.

Adjustments for the hiring process

We want you to feel empowered to show your best self during the application process. If there's anything we can do to accommodate you better (interview timing, place, etc), please let us know in your application form.

Our benefits

• International work environment

• Company pension plan

• Flexibility is at our core; we offer a hybrid work environment (1-2 days at the office)

• Working from home allowance

• Mobility benefit

• Gym membership contribution via Urban Sports

• Learning budget and full access to our learning and development platform

• A1 Dutch language course for you (and your partner)

• Delicious lunches at the office

• The possibility to work from abroad for 1 month every 12 months

• Take care of your mental and emotional well-being with unlimited appointments with psychologists or coaches through OpenUp

• Regular team gatherings and fun company events

BUX for everyone

At BUX, we’re committed to making investing accessible and affordable for everyone through our intuitive app. We believe that a diverse team with a range of backgrounds, skills, and perspectives is key to achieving this mission. By embracing diversity, we strengthen our ability to innovate and serve our customers better.

To fully benefit from our diversity, it’s essential that everyone feels safe, included, and valued. We are dedicated to creating a workplace where each of us can bring our full selves to work and contribute to our shared goals.