Description
Summary:
Join a cross-functional agile team to design, develop, and enhance digital solutions for gas flow management supporting commercial operations.
Highlights:
1. Contribute to a platform designed to endure and evolve with the sector
2. Shape architecture, influence standards, and see your decisions through
3. Experiment, refine, and grow alongside a team committed to excellence
Overview:
Fluxys is an international energy infrastructure group with 1,300 employees active in gas transmission \& storage and liquefied natural gas terminalling.
As a purpose\-led company, we’re committed to fast\-track the shift to a carbon neutral world. We explore new technologies and invest in infrastructure to accommodate hydrogen, biomethane, CO2 and other molecules for a climate neutral future.
At **Fluxys Byte it**, our mission is to provide digital services to the Fluxys Group companies.
For our office located in **Lisbon** we’re looking for a **Developer – Gas Flow Management** (m/f/x).
**Job purpose**
As a Developer for a Gas Flow Management (GFM) product, you will be part of a crossfunctional, agile team responsible for the design, development, and continuous enhancement of digital solutions supporting Fluxys' commercial operations.
**Your responsibilities**
* Design and develop high\-quality, maintainable software components within the Fluxys product ecosystem
* Collaborate closely with product owners, business analysts, and business stakeholders to translate real\-world challenges into digital solutions
* Contribute to architectural discussions and propose improvements that enhance performance, reliability, and maintainability
* Implement and maintain tests and participate in testing activities
* Review code, mentor peers, and uphold coding standards within the teams
* Contribute to release preparation, including technical documentation and deployment activities
* Support user acceptance testing (UAT), actively participate in demo sessions, and ensure clear, reliable documentation to help users adopt the product
* Handle functional and technical service requests from business stakeholders, providing timely and effective support
* Collaborate with the product team to investigate and resolve incidents, ensuring minimal impact on operations
* Participate in monitoring and troubleshoot issues across development, testing, and production environments
* Actively engage in Agile ceremonies: backlog refinement, sprint planning, reviews, retrospectives, and daily stand\-ups
* Help create technical items on the product backlog, phrase them in a value\-oriented manner understandable by business stakeholders, and support the product owner to prioritize these according to value delivered
**About you**
* Affinity with the **technical stack** used by the team:
+ Backend: .NET 8 / .NET Framework, ASP.NET Web API, WCF
+ Data \& Messaging: SQL Server, Oracle, RabbitMQ, NHibernate, Entity Framework
+ Architecture \& Patterns: Domain\-Driven Design (DDD), Clean Architecture, Design Patterns
+ Testing \& CI/CD: xUnit / NUnit, Azure DevOps Pipelines
+ Frontend: Blazor experience is a plus
+ DevOps \& Tools: Git, Azure DevOps, automated deployment \& monitoring tools
* Strong grasp of **software design principles**, clean **coding practices,** and **architectural** **thinking**
* Experience working with **complex systems** and maintaining **large codebases** over time
* Familiarity with modern **testing strategies** and **CI/CD processes**
* Ability to engage with both **technical** and **business stakeholders** fluently
* Fluency in **Portuguese** and in **English**; knowledge of either French or Dutch is a plus
The Mindset we value:* **Product\-Focused:** You understand that success means delivering real value to users and the business, not just completing tasks. You stay aligned with product goals and customer outcomes.
* **Collaborative by Nature:** You thrive in cross\-functional teams, communicate openly, and believe the best solutions come from shared thinking and mutual respect.
* **Curious and Proactive:** You ask questions, explore beyond the obvious, and challenge the status quo to continuously improve how we work and what we deliver.
* **Adaptable and Resilient:** You embrace change, stay flexible under shifting priorities, and help others navigate uncertainty with a positive mindset.
* **Committed to Quality:** You take pride in delivering thoughtful, reliable work. You aim for sustainable outcomes and long\-term impact, not just quick fixes.
* **Transparent and Accountable:** You bring visibility to your progress and blockers, take ownership of your responsibilities, and help foster trust across the team.
* **Continuous Learner:** You stay curious about technology, the energy sector, and modern ways of working—and you’re eager to grow alongside the team and the product
**Why should you apply?**
We offer a **very attractive package** of extra\-legal benefits, including a.o.: individual bonus, smartphone, internet, flexible budget allowance, meal vouchers, 25 holidays, health insurance for the whole family, as well as the possibility of working from home up to 3 days per week.
In addition:* **Impact at Scale:** Your code powers energy flows across Europe—today and for tomorrow’s low\-carbon carriers.
* **Autonomy \& Ownership**: Shape architecture, influence standards, and see your decisions through to production.
* **Long\-Lived Product****:** Contribute to a platform designed to endure and evolve with the sector.
* **Learning Culture:** Experiment, refine, and grow alongside a team committed to excellence.