.NET Developer

Levy Professionals; Zeist; Hybrid; EUR 44,000 - 74,000; Full time

Benefits offered by this job

Hybrid working arrangement

13th month and additional benefits

Job summary

Levy Professionals is seeking a Senior .NET Engineer to join a complex enterprise environment, taking technical ownership while remaining hands-on and influential in shaping engineering standards.

You will design and develop robust .NET applications, build REST APIs, and work with EF/SQL in Azure. The role emphasizes architectural decisions, modernisation, and mentoring fellow engineers in a hybrid setup.

Qualifications

• At least 5 years of relevant experience as a .NET Developer/Engineer
• Strong knowledge of C# and .NET / .NET Core
• Experience with Entity Framework and MS SQL
• Experience building REST APIs and integrations
• Understanding of software architecture and design patterns
• Practical experience with Domain Driven Design
• Experience with Dependency Injection and Onion Architecture
• Experience with Azure
• Experience with Git, CI/CD and automated testing
• Experience with Azure DevOps, pipelines or similar tooling
• Bachelor's or Master's level working and thinking ability

Responsibilities

• Designing and developing robust .NET applications and services
• Building REST APIs and complex integrations
• Working with .NET / .NET Core, Entity Framework and MS SQL
• Applying Domain Driven Design, Dependency Injection and Onion Architecture
• Contributing to architectural decisions and engineering standards
• Improving CI/CD pipelines and automated testing
• Working within an Azure Cloud environment and supporting further cloud modernisation
• Performing code reviews and technical sparring with colleagues
• Supporting and coaching less experienced engineers
• Contributing to security, RBAC and observability
• Translating complex business requirements into scalable technical solutions

Skills

C#

.NET / .NET Core

REST APIs

Entity Framework

MS SQL

Azure

CI/CD

Code reviews

Domain Driven Design

Onion Architecture

Dependency Injection

Git

Azure DevOps

Education

Bachelor's or Master's degree

Tools

Azure DevOps

MS SQL

Job description

Senior .NET Engineer / Technical Specialist

Are you an experienced .NET Engineer who enjoys going beyond standard application development and wants to work in a complex enterprise environment? We are looking for a Senior .NET Engineer who can bring strong technical depth to the team and act as an important technical sparring partner.

You will join an environment that is actively modernising, with a strong focus on software quality, scalability and engineering standards. This is not a formal people-management role, but you will be expected to take technical ownership and help raise the engineering level of the team.

What will you be working on?

You will work on business-critical software and be involved across the full development lifecycle, from analysis and design through development, testing, deployment and monitoring.

Your responsibilities will include:

• Designing and developing robust .NET applications and services
• Building REST APIs and complex integrations
• Working with .NET / .NET Core, Entity Framework and MS SQL
• Applying Domain Driven Design, Dependency Injection and Onion Architecture
• Contributing to architectural decisions and engineering standards
• Improving CI/CD pipelines and automated testing
• Working within an Azure Cloud environment and supporting further cloud modernisation
• Performing code reviews and technical sparring with colleagues
• Supporting and coaching less experienced engineers
• Contributing to security, RBAC and observability
• Translating complex business requirements into scalable technical solutions

What are we looking for?

We are looking for someone who is genuinely strong technically. Not just someone who has worked with the right frameworks, but someone who can analyse complex problems, make well-founded technical decisions and build the solution themselves.

Ideally, you bring:

• At least 5 years of relevant experience as a .NET Developer / Engineer
• Strong knowledge of C# and .NET / .NET Core
• Experience with Entity Framework and MS SQL
• Experience building REST APIs and integrationsStrong understanding of software architecture and design patterns
• Practical experience with Domain Driven Design
• Experience with Dependency Injection and Onion Architecture
• Experience with Azure
• Experience with Git, CI/CD and automated testing
• Experience with Azure DevOps, pipelines or similar tooling
• Knowledge of RBAC and security-by-design is a strong plus
• Bachelor's or Master's level working and thinking ability

What else is important?

Technical depth is essential, but communication is just as important. You should be comfortable explaining technical decisions clearly, challenging existing approaches and working closely with developers, architects, Product Owners and other stakeholders.

You do not need to be interested in people management. This role is particularly suitable for someone who wants to remain technically hands-on while having a high level of influence within the team.

What is on offer?

• A technically challenging role within a complex enterprise environment
• Significant technical influence and ownership
• Work on business-critical systems with meaningful impact
• Modern .NET and Azure environment
• Strong focus on software quality and engineering standards
• Hybrid working, with a minimum of 2 days per week in the office
• Gross monthly salary up to approximately €6,600 depending on experience
• 13th month and additional secondary benefits
• Opportunity to grow technically without having to move into people management