Backend Developer

Prostream by Pro4all; Woerden; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

25 vacation days and 8% vacation pay

Company laptop

Sports during working hours

Delicious daily lunches

Travel expense reimbursement

Social activities and drinks

Job summary

A growing international software company is seeking a talented Backend Developer to design and develop backend components using C# and .NET 8. You will build secure APIs, collaborate in agile teams, and ensure code quality through testing. The role offers a dynamic work environment, a competitive salary, and various perks, including vacation days and travel reimbursements.

Qualifications

• Proficiency in C# and .NET 8 for building distributed backend systems.
• Strong experience with PostgreSQL or other relational databases.
• Experience using Azure Service Bus or other enterprise messaging solutions.

Responsibilities

• Design, prototype, and develop backend and middleware components.
• Build and maintain secure REST APIs for integrations.
• Create and maintain unit and integration tests.

Skills

C#

.NET 8

PostgreSQL

API design

Kubernetes

Azure

Git

CQRS

JWT

Swagger/OpenAPI

Datadog

Serilog

Git

Tools

Swagger/OpenAPI

Datadog

Serilog

Kubernetes

Job description

Join to apply for the Backend Developer role at Prostream by Pro4all

We are looking for a talented Backend Developer to join our team. The successful candidate will design, prototype, and develop backend and middleware components using .NET 8 and C#.

Responsibilities

• Design, prototype, and develop backend and middleware components using .NET 8 and C#
• Build and maintain secure REST APIs and automation layers to support internal and external integrations
• Create and maintain unit and integration tests to ensure code quality and resilience
• Implement testable, scalable, and robust software using established architectural patterns
• Ensure service reliability with structured logging, distributed tracing, and health checks
• Support and guide partners and customers on backend integration challenges
• Collaborate in agile teams with architects, developers, and product stakeholders

Requirements

• Proficiency in C# and .NET 8 for building distributed backend systems
• You routinely integrate AI coding assistants (e.g., GitHub Copilot, Cursor, or equivalents) into your workflow to automate boilerplate, refactors, and tests—shipping faster and writing cleaner code
• Strong experience with PostgreSQL or other relational databases
• Solid understanding of CQRS, publisher-subscriber, factory, and other key design patterns
• Familiarity with dependency injection and modular service architecture
• Secure API design using JWT, OpenID Connect, and authentication middleware
• Hands-on experience with Swagger/OpenAPI, Polly for resiliency, and Git for version control
• Proficient in deploying and operating containerized services with Kubernetes
• Experience using Azure Service Bus or other enterprise messaging solutions
• Working knowledge of cloud platforms, especially Azure
• Familiarity with Datadog, Serilog, OpenTracing, and related observability tools

What we offer

• A challenging and dynamic role within a growing international software company
• The chance to create your own path. 'No' is not something we hear often here; if you have a good idea, you get the chance to execute it.
• A company laptop.
• A good salary.
• 25 vacation days and 8% vacation pay.
• Reimbursement of travel expenses.
• Sports during working hours.
• Delicious, daily lunches at the office.
• Lots of social drinks, snacks and social activities such as supping, karting and padel tennis.
• A beautiful office with excellent accessibility, both by public transport and by car.

We are an equal opportunities employer and welcome applications from all qualified candidates.