Fullstack developer at Pro4all in Woerden, Hybrid

Job Description - Fullstack developer

Your mission

Your Responsibilities

Design, develop, and maintain fullstack web applications using .NET 8, C#, React, and TypeScript
Build secure, maintainable REST APIs and GraphQL endpoints to support dynamic frontends
Create responsive UI components and interfaces using React and Apollo Client
Write automated tests using Jest, React Testing Library, and MSTest
Ensure code quality, performance, and maintainability across both frontend and backend
Use containerization and Kubernetes-based deployments for shipping fullstack features
Collaborate with designers, backend engineers, and DevOps to create cohesive user experiences
Integrate AI-assisted tooling (e.g., GitHub Copilot, Cursor) to optimize development speed and code clarity
Participate in agile planning, estimations, code reviews, and continuous improvement processes

Your profile

Required Technical Skills
Frontend:

Proficient in TypeScript, React, and component-based architecture
Experience with GraphQL, Apollo Client, and Apollo Server
Strong testing practices with Jest and React Testing Library
Familiarity with monorepo tooling (e.g., NX, Turborepo, Lerna)

Backend:

Solid experience with C# and .NET 8 for scalable backend development
Knowledge of CQRS, design patterns (e.g., factory, pub/sub), and modular architecture
Experience with PostgreSQL or other relational databases
Working knowledge of Azure, Azure Service Bus, JWT, OpenID Connect
Familiarity with tools like Swagger/OpenAPI, Polly, Serilog, Datadog, and OpenTracing

Tooling & Development:

Experience using Git, modern CI/CD, and container-based workflows
AI-powered development practices (e.g., GitHub Copilot) to speed up refactors, test creation, and boilerplate reduction

Why us?

What do we offer you?

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.

Interesse?

Are you ready to be part of our adventure and help transform the construction industry? Then apply now – or if you have any questions, feel free to give us a call on 0348-489600 and ask for Wouter Coebergh.

About us

20 years ago at Pro4all, we embarked on a challenging mission: to digitise construction. Why? Because we saw that, despite all good intentions, costly mistakes were being made and materials unnecessarily wasted. Thanks to our software, construction companies can now work together more efficiently, build more sustainably and possibly even contribute to solving the housing shortage. Our products are used daily by tens of thousands of professionals working in the construction industry.

But note that we are not just another software company. We are a team of passionate tech enthusiasts with years of experience. We believe digitalisation is the key to our customers' success. We want to move the (often conservative) construction industry and show that building can be easier (and more fun). Our solutions have contributed to the largest (and smallest) projects in the Netherlands and abroad such as: Amare, Coolblue and Schiphol Airport.

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About the Company

Pro4all

Fullstack developer