As a solution architect, you have the ability to grasp the complexity associated with modern platform solutions, and break it down into simpler, understandable bits towards both engineers as well as business stakeholders. You're able to facilitate the architectural processes, identifying desired qualities and constraints, ensuring risks and trade-offs are discussed within the team(s) and guiding business stakeholders to take informed decisions.


  • It's your responsibility to ensure that the architecture of the products you're assigned to is sound, well-understood and continues to evolve in a direction that best support the business case and follows the existing guardrails.
  • To a great extent, that means facilitating the architectural debate, ensuring the architectural decisions are made consciously and its trade-offs (or derived risks) are well understood, both internally (towards the involved teams) as externally (towards our client's stakeholders).
  • You're a key partner that works between enterprise / domain architecture and the solution designers / tech leads.
  • You ensure that the solution that is approved by the board is correctly implemented by validating the solution design and following up its implementation.
  • You also ensure knowledge is shared across your colleagues.
  • You evaluate project constrains to find alternatives, alleviate risks, and perform re-engineering if required
  • You update stakeholders about any issues connected to the architecture


  • Master in Informatics or Master in Computer Science (or related) or equivalent by experience
  • You have at least 5 years of relevant experience as a software engineer and a solution architect
  • You're familiar with the principles, opportunities and challenges of modern architectural paradigms and you know how to apply them.
  • From a technical point of view, you have a broad knowledge in terms of technologies; allowing you to collaborate efficiently with experts while being able to assess the impact of a technological choice on the architectural design. Amongst others, this includes:
    • Cloud Solutions
    • Docker and Kubernetes
    • Databases systems (relational, document, key/value, graph, search, datawarehouse...) and data engineering frameworks
    • Messaging & eventing systems
    • Connectivity & networking concepts
    • Communication protocols and technology (HTTP, WS, REST, OAuth, OIDC, SAML, graphql...)
  • You're familiar with the challenges posed by creating secure software and how to manage them
  • You've got proven experience with common software engineering practices (SDLC, devops,... ) and architecture modelling practices & languages (UML, EER, Swagger, Archimate, …).
  • You’re always keen to learn new things, share your knowledge, embrace change and learn from past experiences. Drawing on a whiteboard to facilitate a debate comes natural to you.
  • You’re able to work in a team and are always open for feedback from your team mates.
  • You have an affinity with product design and engineering top-notch digital products.
  • You’re able to handle the pressure and flexibility of a dynamic company.
  • You have excellent communication skill and are able to communicate in both technical and Layman’s terms.

Our offer

Within our open business culture, you will work behind the scenes on the digital transformation of NMBS/SNCB. You have a job with social impact and room for personal input. In addition to a good work-life balance and a competitive salary, your package includes:

  • Possibility to work from home 3 days a week + flexible working hours
  • 35 days of leave
  • Company car + public transport pass
  • Target bonus
  • Hospitalisation insurance (including dental care) for the whole family, group and invalidity insurance (cafeteria plan), without own contribution
  • Meal and eco cheques
  • Net allowances for remote work and carwash + internet budget
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3 reasons to choose Ypto 

Icoon uitdagingen: bergtop

Challenging projects

At Ypto, you never stand still. Every day is different and offers the opportunity to be challenged to innovate in order to find the best solution for our customer.

Maatschappelijke impact icoon

Social impact

Through your work, you contribute to the future of Belgian railways and have a tangible impact on millions of people.

Doorgroeimogelijkheden icoon

Growth opportunities

Initiative, trust and self-management are key. You will have the support of your colleagues to develop and the opportunity to grow.

Application procedure

Did you apply for a position at Ypto? Or are you curious about how our application procedure works? We follow the four steps below each time. Depending on the position, an additional interview or assessment may be required.


CV screening

We take a close look at your CV and check whether it matches the profile you are looking for. We may call you briefly to ask about your motivation and experience.


Interviews and questionnaire

If the outcome of this screening is positive, you are invited to a (video) interview with your direct supervisor and your HR Business Partner. During these interviews, we discuss your motivation, knowledge, experience and skills as well as the content of the job. We also talk about the online questionnaire you filled in prior to the interview.


Reference analysis

Finally, we contact the references you will have provided. This way, we can make you out better.


We have a match: welcome to Ypto

Have you been selected? If so, we will be happy to draw up an attractive proposal and welcome you to our organisation.

Spontaneous application

Would you like to work with us on the future of SNCB but cannot immediately find the right vacancy? Then feel free to submit a spontaneous application. Who knows, you might soon be part of our team!