Backend Engineer

Permanent employee, Full-time · Amsterdam

Our vision

About Fung

Fung is a regulated Payment Service Provider (PSP) for Vertical SaaS Platforms. We enable platforms to embed payments into their offering in a seamless manner. We handle the end-to-end payments infrastructure, compliance and risk management on behalf of our merchants. Fung is headquartered in Amsterdam. We have raised capital from some of the best technology investors in the world.

What we are looking for

We always seek curious, intelligent and highly-driven individuals to help build the next-generation PSP. We highly prefer in-person interaction to build our team and help each other tackle the challenges we encounter on our day-to-day. 

How we work:

  • Ownership: you are empowered to act, take decisions and challenge ideas. 

  • Open and transparent: We always keep everyone in the loop about everything going on in the company. Feel free to ask us anything.

  • We're working in a fast-changing industry, so we learn every day.

  • We are risk-takers, and believers. Mistakes are how you learn.

  • Focus on getting stuff done, no 9-5 mentality, no meetings without agenda.

  • Mentorship and guidance are key: Understanding the 'why' behind our actions empowers you to make impactful decisions. We support each other in learning, adapting, and aligning with our long-term vision, making our work meaningful and directed.

Role description:

As Backend Engineer you will be responsible for building the core products of the Payments Platform. You will learn deeply about the payments and be able to take part in creating end-to-end solutions. Your attention to detail and quality will directly impact the product we build. You will help us extend a modern Typescript codebase running Nestjs on the back and Nextjs on the frontend, served as AWS architecture and implementing Domain-Driven Design and event-driven architecture. 

Your role extends beyond coding; it’s about understanding and contributing to the architectural vision that guides our projects. You'll be encouraged to embrace our frameworks (NestJS for the backend, NextJS for the frontend), understanding that these choices are part of our strategic roadmap to build a scalable, cohesive product.

You think big about scaling systems, when backend work is regarded. Being part of the core team will give you an opportunity to bring your expertise, teach and help adopting improvements to daily process, tech culture and success of the whole team. As part of the Engineering team, every member has a core role in designing new software solutions, and proposing the most adequate approach to the challenges we are solving.


  • Develop core payment products of Fung's Payment Platform.

  • Drive development of our AWS Infrastructure

  • Own engineering projects from design to implementation.

  • Participate in designing and reviewing technical solutions with the team.

  • Develop well-monitored, well-tested, performant and scalable APIs.

  • Solve challenges around performance, code extendability and future-proofing the codebase.

  • Be on the cutting edge of innovation, avid learner, always exploring ways to improve your work.

  • Adapt and thrive within our chosen frameworks and methodologies, recognizing the value they bring to our long-term goals.

  • Engage with our vision and strategy, contributing ideas that align with our overarching objectives.

Experience & Skills

  • 3 years experience

  • You have experience working with Typescript and Node

  • Appreciation for good software design and its impact on project success, with a willingness to adapt and learn within our frameworks

  • You have experience with Event-Driven Architectures and implementations in AWS

  • You know your way around SQL and NoSQL databases

  • You are familiar with unit and end-to-end testing frameworks

  • You have experience working with Online Payments

  • Experience in Payments/FinTech is a plus, but not a must

What we offer

  • Competitive salary & equity based on your skills and expertise.

  • Generous options package, where you grow as the company grows. We are looking for missionaries, not mercenaries.

  • 25 holidays per year in addition to bank holidays. 

  • Warm lunches at the office.

  • Macbook, Noise-canceling headphones. 

  • Personal budget for growth: conferences, training, courses.

  • Friday drinks, dinners and outings as a close-knit team of co-minded people.

  • A really cool company and products to work on with cutting edge. technology, and freedom for you to express your views and ideas.

Recruitment Process:

  1. Screening Call - 15-30 mins

  2. Subject Matter Expert Call - 45 mins

  3. Case Study/Test - 1 hour

  4. Role Deep Dive - 45 mins (manager)

We do not work with third-party recruiters or outsourcers!
We are looking forward to hearing from you!
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