Back-end developer team KnoT - Utrecht

Working at NS means that you can make *the* difference in the dynamic world of sustainable mobility. You help keep the Netherlands accessible, for everyone. At NS, you get a lot of freedom. The possibilities to develop yourself are great. We promise you that no day is the same. And as one of the most beautiful employers in the Netherlands, we have even more to offer. For this position, including:

• A salary between € 3,743 and € 6,491 gross per month (based on a 36-hour work week).
• A 36-hour work week.
• 144 hours of statutory leave (based on full-time employment) + extra leave depending on age (at least one week).
• The possibility to exchange 3 Christian holidays for 3 non-Christian holidays.
• 3% end-of-year bonus, 8% holiday allowance, and an excellent pension scheme.
• Your train travel in 2nd class is free; travel in 1st class is possible with a small personal contribution.
• Your family travels for free during off-peak hours.
• Discount on European train travel once you have worked at NS for 1 year.
• Professional development opportunities
• A choice plan including, among others, a bicycle plan, extra pension accrual, or extra vacation days.
• Want to know more? View our employment conditions and collective labor agreement.
• The possibility to work from home and flexible working hours (in consultation)

• You are involved from start to finish in the development challenges, from designing services and APIs to production and management.
• You enjoy collaborating with various disciplines and teams in the chain, so that back-end services align well with user needs, data, and processes.
• Your work has an impact on the quality of the feasibility analyses that KnoT analysts perform during the timetable planning.
• With reliable, scalable, and well-manageable solutions, you contribute to a mobile, accessible, and sustainable society.

You will work on an application, KnoT, which must quickly provide insight into the feasibility of the logistical puzzles at the shunting and staging yards (the Knoet) within the logistical planning chain. We want to create this so-called node plan as late in time as possible. KnoT supports the phase preceding the node planning by providing insight into the feasibility of the node puzzle and the required capacity of shunting drivers. This allows us to create a node plan as late in time as possible and keeps NS agile in the face of changes in customer demand.

You are part of an agile development team and you regularly interface with end users and other teams in the chain. You primarily develop and manage the back-end: services, data and integration layers, and the engine that performs automated tests. Additionally, you contribute to setting up and maintaining the OTAP environments, the various pipelines, and APIs.
A glimpse of your responsibilities:

• Translating use cases, user stories, and non-functional requirements into an implementation.
• Designing, building, and further developing REST APIs and integrations within the NS application landscape.
• Solving problems, managing, further developing, and continuously improving the software; you think along about performance, security, observability, and reliability. You do this in close cooperation with your development team.
• Monitoring and improving software quality through (unit/integration) testing, test automation, and code reviews.
• Supporting the management of CI/CD pipelines, deployments, monitoring, and infrastructure as code.
• Collaborating closely within your development team and coordinating with chain partners in the Scrum and Agile manner.