Senior Mechanical Engineer

55000 - 65000 per annum

High Wycombe, England

Permanent

Our client, a leading provider of advanced RF and communication solutions for aerospace, defence, and security applications, is currently seeking a Senior Mechanical Engineer to join their team.

Key Responsibilities:

Lead the mechanical design and development of antenna systems and RF equipment

Perform structural, thermal, and vibration analysis to ensure product performance in harsh environments

Deliver detailed designs using CAD tools (e.g. Solid Works, Siemens NX, or similar)
Conduct and review engineering calculations (stress, strain, fatigue, thermal performance, etc.)Support environmental qualification testing (vibration, shock, thermal, IP ratings)
Ensure designs meet military and aerospace standards (e.g. DEF STAN, MIL-STD)
Collaborate with RF, electronics, systems, and manufacturing teams to optimise designs

Lead or support design reviews, technical governance, and documentation

Provide technical leadership and mentorship to junior engineers

Support manufacturing, suppliers, and production teams, including DFM/DFA activities

Participate in root cause analysis and continuous improvement activities

Job Requirements:

Essential:

Degree-qualified in Mechanical Engineering or related discipline

Proven experience in a senior mechanical engineering role within defence, aerospace, or complex product environments

Strong background in mechanical design and analysis

Experience with FEA tools (e.g. Ansys, Nastran, Abaqus)
Knowledge of environmental and structural requirements for ruggedised equipment

Experience delivering projects through the full product lifecycle

Understanding of manufacturing processes (machining, casting, composites, etc.)Strong communication skills with ability to engage cross-functional teams and stakeholders

Desirable:

Experience with RF/antenna systems or electronic enclosures

Knowledge of IP sealing, EMC shielding, or thermal management

Experience working to defence/aerospace standards

Chartered Engineer status (or working towards)
Experience in a regulated engineering environment

Security clearance (SC/DV)
Key

Competencies:

Analytical and detail-oriented engineering approach

Strong problem-solving and troubleshooting skills

Ability to lead technical decisions and influence stakeholders

Effective team collaboration and mentoring

High level of accountability and quality focus

Benefits:

Opportunity to work on cutting-edge defence and aerospace technologies

Collaborative and innovative engineering environment

Career progression and professional development support (e.g. chartership)
Employee benefits package

If you are an experienced Senior Mechanical Engineer looking for a permanent role within the defence and security sector, we would love to hear from you. Apply now to join our client's dynamic and talented team in Marlow, Buckinghamshire.