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

Senior Developer .NET/C# – Roosendaal – Remote

Full-Time 55000 - 66000 £ / year (est.) Home office possible
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Activeants

At a Glance

  • Tasks: Develop and enhance our innovative Warehouse Management System using .NET/C#.
  • Company: Join Active Ants, a leader in e-fulfilment solutions with a focus on automation.
  • Benefits: Enjoy a competitive salary, remote work options, and generous paid leave.
  • Why this job: Make a real impact on logistics technology that processes over 30,000 parcels daily.
  • Qualifications: 5+ years in software development with expertise in Azure and microservices.
  • Other info: Collaborative team environment with opportunities for professional growth and innovation.

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 – Remote employer: Activeants

Active Ants, soon to become Paxon, is an exceptional employer for Senior .NET/C# Developers, offering a dynamic and innovative work environment in Roosendaal. With a strong focus on technology and automation, employees enjoy the flexibility of remote work, competitive salaries, and ample opportunities for professional growth within a collaborative and open culture. Join a multidisciplinary team where your contributions directly impact the efficiency of high-tech warehouse operations and where your ideas are valued and encouraged.
Activeants

Contact Detail:

Activeants Recruiting Team

StudySmarter Expert Advice 🤫

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

Tip Number 1

Network like a pro! Reach out to your connections on LinkedIn or other platforms. 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 openings at Active Ants or similar companies.

Tip Number 2

Get involved in tech communities! Join forums, attend meetups, or participate in hackathons. This not only sharpens your skills but also puts you in touch with potential employers who value innovation and collaboration, just like Active Ants.

Tip Number 3

Showcase your projects! Create a portfolio that highlights your work with .NET/C#, Azure, and any cool automation projects you've tackled. This is your chance to shine and demonstrate how your code can impact operations, just like at Active Ants.

Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in joining the Active Ants team. Don’t forget to follow up after applying; a little persistence goes a long way!

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

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
Enterprise Design Patterns

Some tips for your application 🫡

Show Off Your Skills: When you're writing your application, make sure to highlight your experience with .NET/C# and any relevant projects you've worked on. We want to see how your skills can contribute to our innovative warehouse solutions!

Tailor Your Application: Don’t just send a generic application! Take the time to tailor your CV and cover letter to reflect the specific requirements mentioned in the job description. This shows us that you’re genuinely interested in the role and understand what we’re looking for.

Be Yourself: We love an informal atmosphere, so let your personality shine through in your application. Share your passion for technology and innovation, and don’t be afraid to show us what makes you unique!

Apply Through Our Website: For the best chance of getting noticed, apply directly through our website. It’s the quickest way for us to receive your application and get the ball rolling on your journey to join our team!

How to prepare for a job interview at Activeants

Know Your Tech Inside Out

Make sure you’re well-versed in .NET, C#, and Azure. Brush up on your knowledge of enterprise design patterns like MVC and SOLID. Be ready to discuss how you've applied these technologies in past projects, especially in relation to warehouse management systems.

Showcase Your Problem-Solving Skills

Prepare examples of how you've tackled complex issues in software development. Think about times when you improved processes or automated tasks. This role is all about innovation, so demonstrating your analytical thinking will really impress them.

Understand the Company’s Vision

Familiarise yourself with Active Ants' mission and their high-tech solutions. Knowing about their automated systems and how they impact logistics will show that you're genuinely interested in the company and its goals.

Be Ready for Technical Questions

Expect to dive deep into technical discussions during the interview. Prepare for coding challenges or system design questions that relate to microservices and event-based processing. Practising these types of questions can help you feel more confident.

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