Short Term Portfolio Optimization Flex | Vacancy Brussels

Luminus NV; Sint-Joost-ten-Node; Hybrid; EUR 85,000 - 115,000; Full time

Benefits offered by this job

Performance-based bonus

Meal vouchers

Group insurance

Public transport reimbursement

Mobility budget

Home internet coverage

Company device reimbursement

Discounts on energy services

Job summary

Luminus NV seeks a Short Term Portfolio Optimization FLEX Analyst to maximize value from gas and power portfolios, assets and flexibility using market insight, analytics and technology for fast, informed decisions.

You will optimize Day-Ahead and Intraday portfolios, analyze price trends, and collaborate with Optimization, Generation, Finance and IT to deliver robust short-term strategies and reporting.

Qualifications

• University degree in a technical or economic field.
• 3–5 years of energy, utilities or commodities experience.
• 3–5 years of IT experience with knowledge of development best practices, cybersecurity and application lifecycle management; Python and AI/ML.
• Strong analytical and structured thinking to translate data into decisions.
• Excellent communication and presentation skills across teams.
• Bilingual in French/Dutch and proficient in English.

Responsibilities

• Optimize gas and electricity portfolios across Day-Ahead and Intraday markets, balancing and obligations as Supplier, BRP and Shipper.
• Perform daily market and performance analysis to identify short-term opportunities.
• Contribute to thermal asset optimization and REMIT/public market transparency compliance.
• Collaborate on AI/ML solutions to improve day-ahead and intraday decision-making.
• Monitor KPIs and document procedures to drive operational excellence.
• Support cross-functional reporting, budgets and IT improvement projects translating business needs into analysis and development.

Skills

Energy market knowledge

IT experience

Python

AI/ML familiarity

Analytical thinking

Communication skills

French & Dutch, English

Education

University degree in technical or economic field

Tools

Python

Job description

Are you passionate about energy markets, optimization and technology?

As a Short Term Portfolio Optimization FLEX Analyst, you play a key role in maximizing the value of our gas and power portfolios, assets and flexibility. You combine market insight, analytics and technology to help you make sound decisions in a fast-moving short-term energy environment.

What you'll do

• You optimize our gas and electricity portfolios across Day-Ahead and Intraday markets, helping maximize value while managing physical balancing, trading activities and our market obligations as Supplier, BRP and Shipper.

• Through daily market and performance analysis, you identify opportunities to improve Short Term strategies while considering price developments, weather risks, renewable production, competitors and applicable risk policies.

• You contribute to the optimization of thermal assets and ancillary services and help ensure that you meet market and transparency obligations, including REMIT requirements.

• Working with the Deputy and your colleagues, you coordinate and contribute to AI/ML solutions that improve Day-Ahead and Intraday decision-making, including price, balancing and ancillary services forecasting.

• You drive operational excellence by monitoring results and KPIs, improving procedures and documentation, sharing your expertise and helping Optimizers apply consistent and effective strategies.

• In collaboration with Optimization, Generation, Finance and IT stakeholders, you contribute to financial reporting, budgets and IT improvement projects, where you help translate business requirements into analysis, development, testing, go-live and user training.

What you bring

• With a university degree in a technical or economic field, or equivalent experience, you have a strong foundation that allows you to understand complex energy and optimization challenges.

• Your 3 to 5 years of experience in energy, utilities or commodities give you a good understanding of gas and electricity markets and their operational dynamics.

• You bring 3 to 5 years of relevant IT experience and strong knowledge of development best practices, cybersecurity and application lifecycle management, while your technical toolkit includes Python and AI/ML.

• Strong analytical and structured thinking enables you to turn complex market, operational and financial information into clear decisions and recommendations.

• Your communication and presentation skills allow you to share knowledge, advise stakeholders and collaborate effectively across Optimization, Generation, Finance and other teams.

• With strong autonomy, precision and initiative, you can manage several projects simultaneously, while you are bilingual in French/Dutch and able to work professionally in English.

What you'll get in return?

The energy sector is one of the most rewarding industries in Belgium with a highly rewarding compensation and benefits package:

• Competitive compensation: Attractive salary with a performance-based bonus that can be optimized to your personal preferences, plus meal vouchers.

• Insurance & social benefits: Group insurance and hospitalization coverage for the entire family. Additional reimbursement for healthcare and pharmaceutical costs.

• Mobility: Full reimbursement for public transport, kilometer-based cycling reimbursement and flexible mobility choices: you can choose between a company car or mobility budget.

• Internet & communication: Home internet covered, reimbursement for a personal mobile device with a phone subscription.

• Home Office: A fully-equipped home office, including an ergonomical ICT set-up.

• Exclusive discounts: 30% off gas and electricity after six months, discounts on energy-saving services (e.g., solar panels, heat pumps) and reduced prices on top brands, amusement parks, festivals and more.

• The role gives you significant autonomy over short-term gas and power portfolio strategies, asset optimization and associated risks.

• Your work has a direct impact on value creation, combining energy-market expertise with advanced analytics, AI/ML solutions and continuous improvement.

• You collaborate closely with colleagues across Optimization, Generation, Finance and IT, allowing you to work at the intersection of energy markets, technology and business.

• You work and connect with your colleagues at a Luminus office or from home. Need some flexibility? Your manager is open to discuss what works.

Luminus values e.v.e.r.y individual.

Are you looking for a workplace where you can truly be yourself, where you feel respected, supported regardless of your background, identity and unique story? Then you've come to the right place. Diversity equity and inclusion are not empty words for us - we grant that everyone can flourish and feel valued, so let's build it together!

What does that mean in practice?

Do you have specific needs or require adjustments during the recruitment process or once you are hired? let's discuss about it and we'll do our best to find a solution. We can also discuss if you want to work at 80% or 100%.

Together we make the difference.

• Contact person:: [e-mail]