Senior Developer .NET/C# – Roosendaal – Hybrid
Senior Developer .NET/C# – Roosendaal – Hybrid

Senior Developer .NET/C# – Roosendaal – Hybrid

Full-Time 55000 - 66000 £ / year (est.) No home office possible
Activeants

At a Glance

  • Tasks: Develop and enhance our innovative Warehouse Management System, impacting millions of orders.
  • Company: Join Active Ants, a leader in e-fulfilment solutions with a focus on technology and innovation.
  • Benefits: Enjoy competitive salary, remote work options, and generous leave policies.
  • Other info: Collaborative team environment with opportunities for professional growth and creativity.
  • Why this job: Make your mark in tech by shaping the future of automated logistics.
  • Qualifications: 5+ years in .NET/C# development, Azure experience, and a passion for quality code.

The predicted salary is between 55000 - 66000 £ per year.

Are you a creative and analytically strong Senior .NET/C# Developer? At Active Ants (soon to become Paxon) in Roosendaal, you will work on Maya, our self-developed Warehouse Management System, and on the services that connect more than 300 webshops to our fulfilment environment. Every year, millions of orders are processed through our software. Your work will have a direct impact on innovation, automation, and the further professionalisation of our high-tech warehouse operations.

The moment you walk into one of our locations, you feel it immediately: at Active Ants, everything revolves around smart technology, speed and innovation. Our warehouses run on an impressive ecosystem of automated solutions, including:

  • AutoStore
  • Autonomously moving robots
  • Fully automated packing lines
  • 3D cameras for automatic product dimensioning
  • …and many more high-tech solutions that make our fulfilment operation truly unique.

As a Senior Developer .NET/C# at Active Ants, you translate functional requirements into solid, reliable code. Your focus will be on operational warehouse processes, from hardware control to building intuitive clients used by colleagues on the shop floor. Because quality and continuity in our services come first, you’ll have plenty of room to build solutions that are effective, efficient and future-proof.

Your responsibilities:

  • Building, testing and further developing Maya (WMS) and the integrations with our international fulfilment platform.
  • Designing .NET/C# solutions that process large volumes of logistical data reliably.
  • Contributing to discussions on architecture, performance, automation and innovation within our advanced warehouse environment.
  • Strengthening the team with your expertise in process automation, cloud (Azure), DevOps, CI/CD and hardware control.

You can also optionally participate in a paid on-call/standby rota, designed to prevent incidents. At Active Ants, your code literally comes to life. We are continuously building new technology: following our migration to Azure, we are now moving towards microservices and event-based processing, creating an on-demand IT organisation powered by the latest automation. The best part? You see your work come to life every day. Your solutions determine whether 30,000+ parcels can be processed daily. Robots, automatic packing machines, AI and big data respond to your code. You can proudly tell your friends and family: “That? I built all of that.”

What we offer:

  • Annual contract (32–40 hrs) with a view to permanent employment.
  • Salary up to €5,500 per month.
  • Fully remote working possible.
  • Travel allowance (€0.21/km, up to 25 km).
  • Pension plan with personal contribution options, 8% holiday allowance and 27 days of paid leave.
  • Plenty of room to experiment and develop yourself professionally.

You’ll join a multidisciplinary team of medior and senior developers, technical business analysts, project managers, support engineers and system administrators. Together you work on various projects, with short lines of communication and plenty of direct contact. Open and informal atmosphere: collaboration and knowledge sharing are central. Daily stand-ups and regular team moments keep everyone aligned. Room for your own initiative: ideas for improvements, new features or techniques are actively picked up. A technical lead provides direction where needed, but the team thinks and decides together.

At Active Ants, you’re not just executing tasks — you’re actively shaping the product and the way we work. You are an experienced developer with an eye for quality and stability, who works both independently and as part of a team, and who wants to actively contribute to the further professionalisation of our WMS.

You have:

  • HBO (higher professional education) working and thinking level.
  • Experience with Azure Cloud and microservices (including Azure Functions, Service Bus, API Gateway, Database as a Service, Data Warehouse, Azure DevOps).
  • At least 5 years of experience in enterprise software development: ASP.NET / .NET Core, C#, MVC, Entity Framework, REST APIs, web applications, distributed systems.
  • At least 5 years of experience with enterprise design patterns: MVC, SOLID, microservices architecture.
  • Hands-on experience with security best practices.
  • Good command of the English language.

Nice to have, but not required:

  • Experience with Blazor.
  • Knowledge of CQRS.
  • Experience with AI applications.
  • Knowledge of logistics processes.

About Active Ants:

Active Ants is a leader in innovative e-fulfilment solutions. In our highly automated warehouses, we handle logistics for hundreds of webshops, from inventory management to returns processing. By using AutoStore technology, automated packing machines, and transport robots, we offer sustainable e-fulfilment with a lower ecological footprint. With international locations in the Netherlands, Belgium, Germany, and the United Kingdom, we are rapidly expanding our presence across Europe.

Do you see yourself as our new Senior .NET/C# Developer? Join our team in Roosendaal. Apply directly via the button or send an email to werken@activeants.nl. We look forward to receiving your application. An assessment is part of the recruitment process. Do you have questions about the vacancy? Feel free to contact Rosanna Kooiman via +31 611374182 or werken@activeants.nl. We will be happy to answer them.

Senior Developer .NET/C# – Roosendaal – Hybrid employer: Activeants

Active Ants, soon to become Paxon, is an exceptional employer located in Roosendaal, offering a dynamic work environment where innovation and technology are at the forefront. With a strong focus on employee growth, you will have ample opportunities to experiment and develop professionally while collaborating with a multidisciplinary team in an open and informal atmosphere. Enjoy competitive benefits including a salary of up to €5,500 per month, flexible working arrangements, and a commitment to sustainability as part of our cutting-edge e-fulfilment solutions.
Activeants

Contact Detail:

Activeants Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Developer .NET/C# – Roosendaal – Hybrid

Tip Number 1

Network like a pro! Reach out to your connections on LinkedIn or at tech meetups. Let them know you're on the lookout for a Senior .NET/C# Developer role. You never know who might have the inside scoop on job openings!

Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving Azure and microservices. This will give potential employers a taste of what you can do and how you can contribute to their innovative environment.

Tip Number 3

Prepare for interviews by brushing up on common technical questions related to .NET/C#. Practice coding challenges and be ready to discuss your past experiences with enterprise software development. Confidence is key!

Tip Number 4

Don't forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, it shows you're genuinely interested in joining our team at Active Ants. Let's get you on board!

We think you need these skills to ace Senior Developer .NET/C# – Roosendaal – Hybrid

C#
ASP.NET
.NET Core
MVC
Entity Framework
REST APIs
Azure Cloud
Microservices
Azure Functions
Service Bus
API Gateway
Database as a Service
Data Warehouse
Azure DevOps
Security Best Practices

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the job description. Highlight your .NET/C# expertise and any relevant projects you've worked on, especially those involving Azure and microservices.

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're the perfect fit for the Senior Developer role. Share your passion for technology and innovation, and how you can contribute to our high-tech warehouse operations.

Showcase Your Problem-Solving Skills: In your application, give examples of how you've tackled complex challenges in previous roles. We love candidates who can demonstrate their analytical thinking and creativity in developing solutions.

Apply Through Our Website: We encourage you to apply directly through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss out on any important updates!

How to prepare for a job interview at Activeants

Know Your Tech Inside Out

Make sure you brush up on your .NET/C# skills and be ready to discuss your experience with Azure Cloud and microservices. Be prepared to share specific examples of how you've used these technologies in past projects, especially in relation to warehouse management systems.

Showcase Your Problem-Solving Skills

During the interview, highlight your analytical thinking by discussing challenges you've faced in previous roles and how you overcame them. This is particularly important for a role that involves building reliable code for high-volume logistics data.

Understand the Company Culture

Active Ants values innovation and collaboration, so be ready to talk about how you work in a team and contribute to discussions on architecture and performance. Share any experiences where you've actively shaped a product or process.

Ask Insightful Questions

Prepare thoughtful questions about the company's technology stack, future projects, and team dynamics. This shows your genuine interest in the role and helps you assess if the company is the right fit for you.

Senior Developer .NET/C# – Roosendaal – Hybrid
Activeants

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