Senior SaaS Engineer

Our Company

3E is a leading technology and SaaS company providing digital solutions and expert services that maximise the performance of renewable energy assets. As a trusted data services partner, we deliver future-proof and easy-to-deploy solutions over a project’s entire lifetime, supporting developers, asset managers, operators, investors, EPC contractors and IPP's.

3E's one-stop digital platform SynaptiQ provides a complete range of leading SaaS solutions for development, operational asset management and analytics. In addition, 3E supplies various expert services for engineering, technical and strategic decision support. Read more about SynaptiQ here:

3E has a proven track record spanning more than 20 years across 60 countries. It operates an international team of 100+ experts from its headquarters in Brussels and offices in Barcelona, Paris, Toulouse, Cape Town and Chennai.

Strengthened by partnerships with universities and industry pioneers, 3E continues to explore innovations and new developments in renewable energy and digitalisation, striving to provide the industry’s most advanced energy intelligence and AI-based solutions.

What you will be doing

At 3E, we are currently seeking an experienced and highly skilled Senior SaaS Engineer to join our growing team. As a key player in our technology and SaaS division, your focus will be on our innovative platform, SynaptiQ, a leading software suite that boosts the performance of renewable energy assets.

In this role, you will be instrumental in delivering and maintaining the highest quality of our SaaS product, SynaptiQ, handling complex issues and queries, and assisting with the deployment and integration of new assets into the platform.

Your key responsibilities will be:

  1. Platform Maintenance and Improvement:
    • Provide input/ideas for maintenance and improvement of the SynaptiQ platform.
    • Support the Product Manager with the coordination/integration of new features for the SynaptiQ platform.

  2. Client Support and Engagement:
    • Take the lead in handling complex support tickets from clients, providing effective technical solutions and overseeing the resolution of escalated problems.
    • Collaborate with clients to understand their requirements and translate them into robust technical solutions.
    • Manage the deployment and integration of assets into the SynaptiQ platform.
    • Act as a technical consultant for our clients, helping them maximize the value they get from SynaptiQ.

  3. Leadership and Mentorship:
    • Work closely with the Junior SaaS Engineers to guide and mentor them in resolving technical issues.
    • Promote a collaborative team environment, fostering innovation, and promoting best practices.

  4. Process Improvement:
    • Constantly review and refine internal tools and processes, proposing creative and innovative solutions for improvement and automation.

  5. Market Intelligence:
    • Keep up-to-date with the latest technologies and trends to ensure SynaptiQ remains at the forefront of the industry.

We foster a culture of continuous learning and growth at 3E. As a Senior SaaS Engineer, you will have opportunities to expand your career into leadership roles, such as Service Delivery Manager, or specialize in technical areas like Solutions Architect or Technical Consultant.

Our ideal candidate

To successfully fill this role you:

  • hold a Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
  • are fluent in English.
  • have proven experience in a SaaS engineering role, with a focus on problem-solving and project management.
  • posess in-depth knowledge of object-oriented programming languages (e.g., JavaScript, Python, or VBA).
  • are proficient in database management, with a particular focus on MySQL or other relational database management systems.
  • show excellent communication skills, both written and verbal.
  • have the ability to guide and mentor junior engineers.
  • have a deep understanding of SaaS products and ability to dig into the details.

You get bonus points for:

  • Knowledge of French and/or Dutch.
  • Experience within the renewable energy sector.
  • Strong reporting skills (e.g., FlexiReport, PowerBI).
  • Familiarity with scripting languages for automating daily tasks.

What we offer in return

Our offices are hidden in the centre of Brussels with a view on a pond, with ducks and a heron bringing a regular visit. In addition to a stimulating atmosphere in a highly motivated group of people, 3E offers a unique opportunity to further develop yourself in a company/team with an ambitious growth plan, delivering innovative services.


  • Attractive salary package in line with your level of experience, including group insurance, hospital insurance, meal vouchers (8 euros), eco vouchers, representation allowance, company mobile phone + subscription, 32 days of vacation and a flex income plan.
  • Sustainable transport: easy access with public transport, 100% reimbursement of public transport fare, bicycle allowance. You read that right: we do not offer company cars!
  • Flexible and gliding working hours in our open-minded company.
  • Home working (2 days per week)
  • An international environment: projects in over 100 countries worldwide, colleagues of 20 nationalities.
  • Training on the job by our experts so you get to know our solution and work inside out
  • Opportunity for career growth within 3E, whether in IT, engineering, sales, or consultancy.

Join us in our mission to leverage the most advanced energy intelligence and AI-based solutions for a sustainable future. As a Senior SaaS Engineer at 3E, you will be at the forefront of driving our innovation and success.

Location: Brussels, Belgium

Kalkkaai 6 Quai à la Chaux
1000 Brussels

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