Job Title: Senior Mechanical Engineer
Salary: £55,000 – £70,000
Location: Northumberland
Benefits:
* Performance-related company bonus
* 25 days holiday + bank holidays
* option to buy additional leave
* EV & Cycle to Work salary sacrifice schemes,
* flexible working hours,
* free breakfast and freshly cooked lunch daily
The Company:
This Senior Mechanical Engineer opportunity is with a rapidly scaling, highly innovative engineering organisation delivering advanced electro-mechanical and electro-optical systems into defence, surveillance, and high-security environments worldwide. The business is experiencing significant growth, creating genuine progression opportunities for a Senior Mechanical Engineer to step into a future leadership or Principal-level position.
For candidates seeking meaningful engineering work, this company offers the rare chance to develop technology deployed in real-world critical scenarios, working on short project timelines where designs move quickly from concept to operational use. The culture is fast-paced, highly collaborative, and values people who combine technical excellence with strong communication and team leadership potential.
Job Description:
The Senior Mechanical Engineer will play a hands-on role in designing and developing advanced precision electro-mechanical systems for tracking, detection, and autonomous interception technologies. Working across the full product lifecycle, the Senior Mechanical Engineer will take ownership from concept design and 3D CAD modelling through prototyping, test, verification, and production support.
This Senior Mechanical Engineer position is ideal for someone who thrives in fast-moving R&D environments with short project timelines and multidisciplinary collaboration. You’ll design for harsh environments, considering vibration, thermal behaviour, tolerance stack-ups, environmental loads, assembly constraints, and manufacturability.
Responsibilities include new product development, continuous improvement of deployed systems, producing drawings, BOMs, and engineering documentation, and supporting rapid iteration of high-performance products. There is also scope for the Senior Mechanical Engineer to mentor junior engineers, support team leadership, and progress toward a Principal Mechanical Engineer pathway as the team expands.
Candidates from defence, robotics, autonomous systems, surveillance, or other complex product engineering sectors will be especially well suited.
Skills & experience:
* Minimum 6+ years in a design engineering role.
* Degree or masters in mechanical engineering or similar.
The successful Senior Mechanical Engineer will ideally hold a Mechanical Engineering degree (or similar) and bring strong hands-on product development experience in complex engineering environments. Industry experience within defence, robotics, automation, or other multidisciplinary engineering sectors is highly desirable.
Strong 3D CAD capability is essential, ideally Autodesk Inventor, alongside knowledge of FEA and engineering analysis tools such as Ansys. Experience working on short lifecycle projects, cross-functional engineering teams, and design-for-manufacture principles is highly valued.
Equally important is the ability for a Senior Mechanical Engineer to communicate effectively, work closely with stakeholders, and demonstrate the leadership qualities needed for future team growth. This Senior Mechanical Engineer role offers exceptional long-term progression, technical ownership, and the chance to influence critical product performance in a rapidly growing business
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