Senior Applications Engineer (CFD Engineer)

ToffeeX; London; Hybrid; EUR 55,000 - 80,000; Full time

Job summary

ToffeeX is seeking a Senior Applications Engineer (CFD Engineer) to guide customers in leveraging innovative design solutions. This hybrid role requires expertise in multi-physics simulations and involves collaboration with R&D and product teams. The position offers a comprehensive benefits package, including flexible working hours and opportunities for professional development.

Benefits

25 days holiday per annum

Private Healthcare with Vitality Health

Pension Scheme with NEST

Cycle to Work scheme

Work From Home Fridays

Frequent Team Socials

Qualifications

• 4+ years of experience in advanced CAE/CFD simulations or technical consulting.
• Experience presenting at industry conferences or workshops.
• Ability to independently analyze and debug CFD simulations.

Responsibilities

• Lead advanced customer projects from requirements gathering to solution delivery.
• Mentor and train customers in advanced features and optimization techniques.
• Develop technical resources and present at industry conferences.

Skills

Multi-physics simulations

Optimization

Workflow integration

CFD analyses

Heat transfer principles

Scripting

Programming

Education

Master’s or PhD in Engineering or related field

Tools

CAD knowledge (Fusion 360 preferred)

3D modeling software (Blender, MeshMixer)

Job description

Job Title: Senior Applications Engineer (CFD Engineer)

London (Hybrid)

At ToffeeX, we’re reinventing how engineers design. By combining advanced physics simulation, topology optimization, and the latest in computational design, ToffeeX empowers engineers to deliver high-performance designs—helping companies build better, faster, and smarter.

Since being founded in 2019, we have experienced significant growth and recently moved into a new office in Central London. We were also named in the Startups.co.uk 100 Index 2025! Check out our website and LinkedIn page for more information about ToffeeX.

About the role

As a Senior Application Engineer at ToffeeX, you will be the technical, go-to expert for our customers, guiding them in leveraging ToffeeX solutions to achieve their design and performance goals. You will support users in solving advanced engineering problems, integrating ToffeeX into their CAE workflows, and adopting best practices in simulation and optimization.

You will also collaborate with our internal product, R&D, and customer success teams, playing an active role in shaping future software features and contributing to the growth of ToffeeX. Your responsibilities will include:

• Leading advanced customer projects, from requirements gathering to solution delivery, ensuring technical excellence and customer satisfaction.

• Tackling complex engineering problems, troubleshooting technical issues, and delivering innovative solutions.

• Mentoring and training customers in advanced features, best practices, and optimization techniques.

• Working cross-functionally with product, R&D, and customer success teams to relay customer feedback and influence product direction.

• Developing technical resources, case studies, and presenting at industry conferences or workshops.

• Contributing to the R&D team to test and evaluate the usability of new software features and functionalities.

• Traveling to attend exhibitions or visit customers in the UK, Europe, or globally (up to 20% of the time).

Requirements

• Master’s or PhD in Engineering or a related field.

• 4+ years of experience in advanced CAE/CFD simulations or technical consulting.

• Deep expertise in multi-physics simulations, optimization, and workflow integration.

• Experience developing technical resources and presenting at industry conferences or workshops.

• Experience with CFD analyses for internal flow problems (proficiency in open-source tools is a plus).

• Ability to analyze, post-process, and debug CFD simulations independently and collaboratively.

• Solid understanding of heat transfer principles; experience with thermal design for cooling across industries is a plus.

• Proficiency in scripting or programming (Python, C++) is a plus.

• CAD knowledge (Fusion 360 preferred).

• Preferred knowledge of 3D modeling software such as Blender and MeshMixer.

What’s in it for you:

• Flexibility and support for continuous learning and professional growth.

• 25 days holiday per annum (plus UK bank holidays).

• Private Healthcare with Vitality Health*

• Pension Scheme with NEST.

• Cycle to Work scheme.*

• Perks at Work - Access to 30,000+ national & local employee discounts.

• Work From Home Fridays.

• Frequent team socials.

*Available once the probationary period is complete.

If you’re excited about solving complex problems and shaping the future of engineering design, we’d love to hear from you!