Senior .NET Engineer C# .NET Entity Framework Angular / React / Vue PostgreSQL Docker 7+ years experience The Hague

NCIM; Den Haag; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Lease car with fuel card

Annual study trip

Bonus on billable hours (up to 10%)

Long-term assignments

Job summary

NCIM in The Hague is seeking a senior .NET engineer to set the technical direction of critical systems and mentor engineers in a hybrid role. You will design robust, secure solutions for high-pressure environments like defence and national security domains, working with C#, .NET, EF and modern frontend stacks.

The role emphasizes hands-on architecture, code quality, and collaboration with clients to shape feasible designs while adhering to SOLID principles and agile practices.

Qualifications

• Degree in computer science or software engineering or AI.
• At least 7 years of experience as a .NET software engineer.
• Strong knowledge of C#, .NET and Entity Framework.
• Frontend experience with Angular, React or Vue.js.
• Experience with databases such as PostgreSQL or MongoDB.
• Familiar with Docker and Kubernetes.
• Experience with Agile/Scrum; applies SOLID principles.

Responsibilities

• Set the technical direction and architecture of critical .NET systems.
• Design robust solutions where security is integral.
• Mentor medior and junior engineers and raise the team's technical bar.
• Spar with the client on design choices and feasibility.
• Guard the quality bar through reviews, standards and agreements.

Skills

C#

.NET

Entity Framework

Angular

React

Vue.js

PostgreSQL

Docker

Kubernetes

SOLID principles

Education

Technical degree (BSc/MSc) in CS/Software Engineering/AI

Tools

Angular

React

Vue.js

PostgreSQL

MongoDB

Docker

Kubernetes

Job description

Set the technical direction of .NET software that performs under pressure.

The Hague 7+ years experience Hybrid working

From command & control to forensic platforms. .NET software that performs under pressure.

You build software for clients that don't let everyone in. Think C2 systems for Defence, analysis software for the NFI or security platforms for national security organizations. Complex domains with high demands on robustness and quality, where you help decide how it's built.

C# .NET Entity Framework Angular / React / Vue PostgreSQL Docker 7+ years experience The Hague Hybrid

What you will do

• Set the technical direction and architecture of critical .NET systems
• Design complex solutions where robustness and security are never an afterthought
• Mentor medior and junior engineers and raise the team's technical bar
• Be a sparring partner for the client on design choices and feasibility
• Guard the quality bar through reviews, standards and clear agreements

What we are looking for

• Technical degree (BSc/MSc), for example Computer Science, Software Engineering or Artificial Intelligence
• At least 7 years of work experience as a .NET software engineer
• In-depth knowledge of C#, .NET and Entity Framework
• Experience with Angular, React or Vue.js on the frontend
• Comfortable with databases such as PostgreSQL or MongoDB
• Familiar with Docker and Kubernetes
• Comfortable working in Agile/Scrum, applies SOLID principles and passes them on to others
• Dutch nationality (many of our clients require this for a security screening)

Which domain you work in depends on your background and interests.

Here’s what we offer. In addition to work you can be proud of.

29 days off and Liberation Day always free

We believe it's important that you get enough rest so you can perform at your best.

Your manager is a fellow engineer

Not a sales manager but a fellow engineer. Every two weeks, a sparring session about your work and your growth.

Earn up to 10% of your monthly salary as a bonus on your billable hours.

No project hopping

Our assignments are long-term. You build something real and watch your work grow.

Mobility

A lease car with fuel card or a mobility allowance. The choice is yours.

Annual study trip

Bletchley Park last year, CERN this year. Mostly just great fun: at NCIM, everyone knows each other.

Growth

Your ambition matters. With a personal development plan, a generous training budget and the right courses, we invest in your future.

A combination of working from home and set days at the office or client site.

Here’s how it works. No assessments, no case days, no five rounds of interviews. Just a few good conversations where we get to know each other.

01

Introduction

An informal conversation with Jessy . Who are you, what are you looking for, what interests you. Low-key, no commitment.

02

Technical interview

An online conversation with Shane or Koen about your technical background and experience. Not an assessment, just a genuine technical conversation.

03

At the office

You come to The Hague for a final conversation. You get to see the office, get a feel for the atmosphere, and we really get to know each other.

04

Offer

Is it a match? Then we make you an offer. And then it's up to you.

We're looking for Java and .NET engineers, from medior to senior, who want more than standard IT: people who get genuinely excited about software that matters, for clients most engineers never get near.