About

• Company Description
• ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.
• Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.
• Join us and start building tomorrow’s world today!
• Job Description
• As a Flowmaster Fluid Engineer , you will join Derby team to support our activities within the Nuclear sector.
• As a Flowmaster Fluid Engineer, you will support the analysis and design of complex fluid and thermal systems, using Flowmaster to perform detailed system modelling and performance assessments. You will play a key role in supporting system design development, working closely with mechanical, systems, safety, and integration engineering teams.
• Location: Derby
• On Site: 1 day / Remote
• Clearance: BPSS
• Experience Level: 5-10

Key Responsibilities

• Perform advanced thermal analysis and flow simulations using Flowmaster.
• Carry out pressure drop, heat transfer, and system performance calculations.
• Develop and validate models to support complex system designs.
• Collaborate with cross-disciplinary engineering teams (mechanical, systems, safety, and integration).
• Ensure all work is delivered to the highest technical and regulatory standards.
• Contribute to design reviews, technical reports, and project milestones.
• Qualifications

Required Skills

• Mandatory: Hands-on experience with Flowmaster software.
• Strong foundation in thermodynamics and fluid dynamics.
• Proven track record of delivering thermal and flow analysis within a technical engineering environment.
• Excellent problem-solving skills and ability to apply engineering principles to safety-critical projects.
• Strong communication skills with the ability to work across multi-disciplinary teams.

Required Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or related discipline or equivalent military experience.

Desirable Skills

• Background in nuclear, aerospace, or similarly regulated industries preferred.
• Familiarity with relevant codes, standards, and design assurance processes.
• Additional Information
• Why join us?
• We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies.
• At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals.
• Join a passionate team and help build tomorrow, today.

In short you get

• A personalised career path and a rewarding management style
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Cycle & Tech Scheme
• Employee assistance programme
• Life insurance & Pension Scheme
• Social atmosphere, regular gatherings & team buildings
• Flexible way of working (role dependent)
• We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes.
• This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.

• Contract Type: Permanent
• Region: Midlands
• Compensation: GBP40000 - GBP60000 - yearly