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Open nowPosted 247 days ago

Developer

Fluxys21 open roles

Where
Lisbon, Portugal
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Your applicationOpen nowDeveloperFluxys · Lisbon, Portugal

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The clock on this job

Early applications get read.

11.5% of postings close within 7 days. Measured by our own scanner across the market. Fluxys postings stay open a median of 1 days.

Share of postings closed within
  1. 2.0%1 day
  2. 4.3%3 days
  3. 11.5%7 days
  4. 18.1%14 days
  5. 35.6%30 days
  6. 44.6%60 days
This job: posted 247 days ago

Fluxys median: 1 days open

The posting

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.
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