
Senior Backend Developer C# .NET
- Rotterdam, Netherlands
- €4,500 - €5,200 per month
- Development
Job description
At VI Company, we take a different approach to FinTech. We go further than just building solutions for our clients. What really sets us apart is that we're with them from day one, shaping the entire solution. We collaborate with leading banks, investors, and pension funds to not only build their digital future, but architect it with them.
Having a team of over 40 people, including more than 20 developers, we've got the expertise to do things right. When you join us, you'll be part of every crucial choice that determines how these complex financial systems grow and adapt over time.
What you’ll be doing as Senior Backend Developer at Vi
We're looking for a Senior Backend Developer who can truly elevate our software solutions. From making the right strategic choices to writing killer code, You'll be the technical backbone behind complex financial platforms. In addition to developing high-impact projects for major clients like ING and BNP Paribas, you'll also mentor our growing team of junior developers, shaping both our technical capabilities and our next generation of talent.
Here's what that looks like in practice:
You write clean and testable C# code for FinTech web apps and software, processing complex calculations and data from multiple sources. You work closely with experienced developers on projects for clients like ING and RTL-Z.
You work together with a multidisciplinary scrum team towards a shared goal: delivering high-quality reporting and management information systems.
You love to learn and develop yourself as well. Through mentoring junior developers, joining international conferences, or simply catching up during our FIFA lunches.
You are experienced with our tech stack, consisting of C# and .NET and are comfortable working in an Agile environment.
Project examples?
A trading game for RTL-Z to practice investment skills, the platform for ING Sprinters, or the web platform for VanEck ETFs. Also check out our first product, Alloq. And much more, that we're eager to share with you!
5 boxes we tick
Salary up to €5.200 per month plus a 13th-month, 8% holiday allowance, pension plan, travel coverage, and 25 vacation days (extra days can be purchased).
The freedom to arrange your own work-life balance with a workweek of 32/36/40 hours, flexible working hours, and hybrid working. And €750 to set up your home workplace.
A solid atmosphere and culture where development is central, more than 20 development colleagues, and highly skilled seniors with a passion for their craft.
Laptop and all the other gear you need, weekly allocated self-study hours, annual training budget, and training days to keep your coding skills and knowledge up-to-date.
The autonomy and freedom to experiment and innovate with new tools, frameworks, or tech. To keep developing yourself, your colleagues, and VI Company.
Job requirements
5 boxes you tick
You have 5+ years of work experience and are experienced in our tech stack. C# & .NET
You continuously seek to improve your code. For example, by applying TDD/BDD, and DDD.
You're comfortable engaging with external stakeholders and breaking down technical concepts into straightforward, non-technical language.
You enjoy sharing knowledge, which may include writing articles or giving presentations, but also mentoring junior colleagues.
You value social cohesion in the office as well as working from home. The idea of attending a team lunch, drinks, gaming sessions, or a VI activity sounds fun to you.
Team up!
Interested? Apply directly via this platform, or shoot us an email at work@vicompany.nl. Please let us know if you need more information or have any questions before applying! Hope to see you soon :-)
or
Thank you ;-)
Thank you for sharing your details with us. It is great to hear that you are interested in VI Company. You will hear from us as soon as possible, but at latest within a week.
Our Process

Welcome👋
30-minute digital call with HR to get to know each other.

Meet the team🤸♀️
Chat with the team lead and a colleague, to dive deeper into your skills.

Case🎮
Coding challenge for tech roles (± 3h), business case for commercial roles (± 1h). Prepared from home.

Final interview🏆
Meet a colleague from the Management Team, and discuss your case results with the team lead.
Life @ VI Company







