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Senior Python Software Engineer

Posted 22 Nov 2025
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Work experience
5 to 50 years
Full-time / part-time
Full-time
Job function
Salary
€85,000 - €120,000 per year
Degree level
Required languages
English (Fluent)
Dutch (Fluent)

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Shape Tomorrow's Energy Today

Innovate for Impact

Driving sustainability with Tech

Why choose Eneco?

At Eneco, we aim to achieve climate neutrality by 2035 for both our organization and our customers. Our One Planet strategy supports this goal through advanced digital solutions and innovative technologies. Our tech teams within the short-term trading and operational domain contribute to this mission by developing tools that facilitate continuous energy delivery and optimize trading operations.

What you’ll do

As a Python Tech Lead, you will be leading the effort of developing a new platform for short-term trading asset scheduling models. Using Python, you will work to enhance the value of Eneco's diverse asset portfolio, which includes e-boilers, Combined Heat and Power (CHP) systems, heat grids, Combined Cycle Gas Turbines (CCGTs), batteries, wind turbines, and solar panels across multiple energy markets. You will take the technical lead in building this new mission-critical platform, ensuring the use of the latest technologies and adherence to high-quality coding standards.

You’ll be responsible for

  • Building resilient and future proof applications. Lead the planning, architecture and development of the asset dispatching platform and the energy optimization models.
  • Growing the team. You'll be a coach and mentor to your team members.
  • Push the standard. Ensure code follows best practices, works efficiently and is tested effectively.
  • Drive adoption. Keep technology current with advancements in Python and cloud technologies.
  • Overseeing the software development lifecycle.
  • Ensure production systems perform efficiently, with robust security and maintainability.

Is this about you?

  • Proven expertise in Python and cloud engineering.
  • Experience building mission-critical platforms.
  • Strong technical skills with the ability to communicate requirements to stakeholders.
  • Comprehensive understanding of containerization, microservices, and Continuous Integration/Continuous Deployment (CI/CD) processes (Azure DevOps).
  • Ability to lead a team of developers, ensuring high-quality coding standards are met.
  • Residency in the Netherlands and fluency in English.

Bonus points for

  • Experience with mathematical optimization (Gurobi is highly advantageous).
  • Background in trading, energy markets, or optimization models.
  • Proficiency in data science/engineering.
  • Experience with frontend frameworks (Vue.js).
  • Familiarity with .NET/C#.

This is where you’ll work

You will join Eneco’s Python tech team within Ops&IT and be part of the larger Eneco backend developer community. Together, we establish backend standards and contribute to the advancement of a sustainable energy system.

What we have to offer

Gross annual salary between €85.000 and €120.000

Including FlexBudget, 8% holiday allowance, and depending on your role a bonus or collective profit sharing.

FlexBudget

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?

Eneco heeft als missie 'duurzame energie van iedereen'. Samen met onze klanten en partners versnellen we de energietransitie en zorgen we ervoor dat mensen zelf hun eigen duurzame energie kunnen opwekken, gebruiken, opslaan of delen. We lopen voorop in duurzaamheid en innovatie. Dat maakt het werken bij Eneco afwisselend en uitdagend.

Energy
Rotterdam
Active in 4 countries
3,000 employees
50% men - 50% women
Average age is 35 years