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Salary
$54k – $67k per year
Location
In office (Salisbury)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 9, 2026. First seen by Alion on Sep 18, 2026.

Overview
Company
Impact
Profile match
Callen-Lenz is an aviation technology company that specialises in crewed and uncrewed aircraft operations and technology and is in a period of rapid growth after recent investment. Its postings cover flight control and autopilot software engineers, front end developers, data architects, database administrators and unmanned aircraft training managers, mostly at Salisbury with roles in Bristol. The company is headquartered in Salisbury, England, United Kingdom.

Modelling and Simulation Engineer

Vacancy Reference: CLA- 438

Position: Full-time

Location: Salisbury, Wiltshire, UK

Salary: £40,000 - £50,000

At Callen-Lenz, we are expanding the limits of what is possible. We specialise in crewed and uncrewed aircraft operations and technology and having recently received investment into the business we are going through a period of rapid growth and development and are looking for key roles to assist with these changes. Callen-Lenz offers innovative and customer-focused UAS solutions through our 4 key business strands: technical services, products, platforms and operational services. We are looking for individuals to help drive forward our expansion, placing you at forefront of UAS development in the UK.

Our Values

  • Innovation

  • Integrity

  • Collaboration

  • Excellence

Why Work for Us

Based in the heart of rural Wiltshire, close to the Historic city of Salisbury you will join our rapidly growing, friendly and multi-disciplined team, working on a range of diverse and interesting projects, leading the way in this exciting field and witnessing the full lifecycle of our products. The Callen-Lenz team are passionate about what we do, and we are searching for individuals to grow with us as we expand into the aerospace industry.

Our benefits include:

  • 25 days annual leave per year (plus bank holidays)

  • Buy/Sell holiday policy up to 5 days either way

  • Pension Scheme via Royal London

  • Company contributed Share Incentive Plan.

  • Green Car Scheme

  • Life assurance scheme (6x basic salary)

  • Income protection policy (75% of basic salary)

  • Private Health Insurance via Bupa

  • Private Dental insurance via Bupa

  • Enhanced Maternity and paternity

  • 1 Professional membership reimbursed per year

  • 1 paid volunteering day per year

  • Access to an independent financial advisor year round

  • Training & development opportunities

About the role

Working within the Air Vehicle Design team you will be conducting multi-disciplinary modelling and simulation activities. This will include aircraft performance analyses, air vehicle design support through flight dynamics modelling, control algorithms design and model validation through analysis of experimental test data. We are looking for a simulation and modelling engineer to grow and develop our modelling capabilities.

Responsibilities

  • Understand project requirements.

  • Build model, simulate, and analyse aircraft performance and flight dynamics.

  • Implement flight simulation and visualisation test environments.

  • Present modelling analysis and simulation results, in meetings, conferences or through technical publications.

  • Maintain models to high standards.

  • Gather modelling data through bench/flight testing activities.

  • Write technical documentations (technical specifications, model descriptions, test plans and test reports).

  • Support team effort to establish library of reusable models / tools.

  • Interface with software developers, design and testing activities to understand modelling needs and fidelity required.

  • Ensure on-time delivery of technical solutions that meet business needs and manage business partner satisfaction relative to deliverables.

  • Perform other related duties as required.

Health & Safety

  • Demonstrate in daily activities a commitment to health and safety in the workplace by always ensuring tasks are performed in the safest possible manner.

  • Report all hazards and incidents that the individual is party to, or observes, in the correct manner.

  • When required or directed, participate in any health and safety training.

Qualifications

  • Bachelor’s or Master’s degree in a relevant domain (e.g. aerospace, automotive, physics etc).

Skills and Experience

Essential:

  • Excellent communicator who is able collaborate effectively.

  • Ability to listen, reflect and positively influence a situation.

  • Demonstrable problem-solving ability, working to tight timescales.

  • Proficient in use of Matlab/Simulink or a comparable modelling tool.

  • Demonstrable knowledge of UAVs flight dynamics physics and flight control systems.

  • Excellent technical writing and presentation skills.

  • Configuration Management experience in an engineering environment.

Desirable:

  • Experience with model validation activities.

  • Aerodynamics knowledge (Empirical techniques / CFD).

  • Experience with SolidWorks or comparable CAD package.

  • Experience with common flight simulation and visualisation packages.

  • Knowledge and application of civil / military aerospace standards.

  • Systems Engineering experience, preferably within an aerospace context.

Personal Attributes

  • Must be a British Citizen or have an existing right to work in the UK.

  • Ability to commit to occasional national and international travel.

  • A full valid UK driving license.

  • Ability to hold Security Clearance - 5 years residence in the UK.

Callen-Lenz is an equal opportunities employer, committed to building an inclusive working environment. We welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age. It is essential that the successful candidate must, by the start of their employment have permission to work in the UK. Proof of identity and eligibility to work in the UK will be required prior to commencement of employment.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

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