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Senior R&D Engineer CFD & Optimization (Remote)

Diabatix
Full-time
Remote
Belgium
We are looking for a motivated and technically strong R&D Engineer to join our development team. In this role, you will work on the research, development, and implementation of advanced CFD- and optimization-based methods that power Diabatix’s generative design technology.
You will collaborate closely with software engineers, application engineers, and product teams to translate cutting-edge research into robust, industrial-grade solutions.
Responsibilities
Your major responsibilities are:
  • Develop, implement, and validate advanced CFD-based methods for thermal analysis and design optimization.
  • Contribute to the development of adjoint-based optimization and gradient-driven design workflows.
  • Work with and extend CFD solvers, preferably OpenFOAM, including model development, solver customization, and performance improvements.
  • Design and implement optimization algorithms for geometry and system-level design problems.
  • Collaborate with application and product teams to translate industrial requirements into R&D priorities and technical solutions.
  • Evaluate, prototype, and integrate AI/ML techniques where relevant, particularly for geometry handling, surrogate modeling, or physics-aware acceleration.
  • Ensure robustness, accuracy, and scalability of algorithms for real-world industrial use cases.
  • Participate in code reviews, testing, documentation, and knowledge sharing within the R&D team.
  • Stay up to date with academic and industrial developments in CFD, optimization, and simulation-driven design.
Qualifications
  • Master’s degree or PhD in Engineering, Applied Mathematics, Computer Science, or a related technical field.
  • Strong background in computational fluid dynamics (CFD) and thermal engineering.
  • Experience with numerical optimization methods; adjoint methods are a strong plus.
  • Hands-on experience with OpenFOAM development and C++ programming is highly desirable.
  • Solid understanding of numerical methods, discretization techniques, and solver architectures.
  • Experience or interest in AI/ML applied to physics-based problems (e.g. surrogate models, physics-informed ML, geometry representations) is a bonus.
  • Ability to work independently on complex technical problems in a fast-paced R&D environment.
  • Strong analytical skills and a structured, problem-solving mindset.
  • Good communication skills and ability to collaborate across disciplines.
Why Join Diabatix?
  • Work on core R&D challenges at the intersection of physics, optimization, and software.
  • Contribute directly to the technology behind a commercial, industrial-grade SaaS product.
  • Collaborate with a highly skilled, multidisciplinary team in a growing scale-up.
  • Competitive salary and benefits package.
  • Opportunities for technical growth, learning, and long-term impact.
Apply now
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