Full-stack Engineer

• Play a key role in developing platforms that empower businesses to make smarter, more sustainable energy choices and directly contribute to Eneco’s goal of becoming climate neutral by 2035.

• Build full-stack solutions using React, Next.js, .NET Core, and Sitecore, creating scalable, user-friendly, and future-ready digital experiences used by thousands of customers.

• Join a multidisciplinary team where engineering, business, and sustainability meet, giving you room to innovate, grow your skills, and see the real-world impact of your work.

Why choose Eneco?

At Eneco, sustainability drives everything we do. Through our One Planet Plan, we aim to be climate neutral by 2035, and your work in this role will directly support that mission. By building B2B platforms, you’ll help businesses make smarter, more sustainable energy choices and accelerate the transition to cleaner energy.

Your contributions will have a tangible impact, creating innovative digital solutions that empower Eneco’s customers and partners to act sustainably while shaping the future of energy.

What you’ll do

• Build responsive and accessible web applications using React and Next.js
• Develop backend services and APIs with .NET Core (C#), ensuring scalability and performance
• Integrate applications with Sitecore CMS and other business systems
• Write clean, testable, and maintainable code across the stack
• Collaborate with designers, QA, and product stakeholders to refine requirements and deliver solutions
• Contribute to CI/CD pipelines, cloud deployment (Azure), and system monitoring
• Share knowledge and best practices with teammates and actively contribute to improving how we work

You’ll be responsible for

• Deliver reliable, maintainable, and secure code that meets functional requirements and technical standards.
• Contribute to improved system stability and performance through proactive debugging, testing, and operational awareness.
• Support the team’s productivity by effectively managing tasks, communicating blockers, and ensuring timely completion of assigned work, collaborating beyond core capabilities when needed (t-shaping).
• Foster a culture of continuous improvement through constructive feedback, documentation, and knowledge sharing within the team.
• Demonstrate accountability for personal work, contributing to team goals and maintaining alignment with organizational priorities.

Is this about you?

You’re a collaborative problem-solver with a hands-on mindset and a passion for building things that work beautifully. You take ownership, stay curious, and balance technical precision with a practical approach. In a fast-paced, evolving environment, you bring structure, clear communication, and a drive to continuously improve — turning complexity into meaningful, scalable solutions.

This is where you’ll work

You’ll join the Tech department — a diverse team of innovators and engineers working on systems that enable Eneco’s sustainable mission. You’ll focus on the B2B domain, building and maintaining digital solutions that streamline business processes, enhance customer experiences, and enable efficient collaboration across teams. You’ll work hybrid, combining focus days at home with collaboration days in our Rotterdam HQ.

What we have to offer

FlexBudget

Including FlexBudget, 8% holiday allowance, and depending on your role a bonus or collective profit sharing. Have it paid out, use it to buy extra holiday days or save it up for something nice, it's up to you.

Personal and professional growth

Eneco is fully committed to help you in your personal and professional development.

Hybrid working: home, office or abroad

Work 40% at the office, 40% from home, and 20% flexibly. With manager approval, you may work abroad (within approved countries) up to 3 weeks/year, max 2 consecutively.

Work that works for you and the climate

If you decide on a career at Eneco, you are choosing ambition, growth and opportunities. You will have all the space you want to improve yourself and do your job the way that suits you best, which includes having a good work-life balance. You can work to a flexible schedule and work partly from home if your role allows it. That is how you can work on your own future and on the future of the world. After all, you and your 4,000 colleagues are committed to our mission: climate neutrality by 2035. We assist customers to accelerate their sustainability efforts, devise innovative solutions and seize opportunities with both hands. Are you ready?