Senior Mechanical Design Engineer - Downhole tools

Senior Mechanical Design Engineer

Location: Aberdeen
Sector: Oil & Gas - Downhole Tools
Employment Type: Full-Time, Permanent

An established engineering organisation serving the oil and gas sector is seeking an experienced Senior Mechanical Design Engineer to join its Aberdeen-based team. This is a senior-level technical role requiring deep expertise in the design and development of oilfield downhole tools. The successful candidate will play a key role in product development, project delivery, engineering analysis, and cross-functional collaboration. The position offers the opportunity to contribute to high-value engineering projects from concept through to product validation and commercial delivery.

• Lead and manage mechanical design projects from concept to finished product.
• Develop detailed 3D models and manufacturing drawings in line with industry and internal standards.
• Perform component and assembly-level mathematical analysis, including stress and load calculations.
• Conduct tolerance stack-up studies and technical design reviews.
• Design and support product validation testing, including hands‑on participation.
• Develop test equipment for product verification to relevant industry standards.
• Prepare engineering cost estimates for product development and enhancement.
• Manage projects to meet budgetary and delivery targets.
• Provide technical support to internal teams, clients, and vendors.
• Contribute to product viability assessments and continuous improvement initiatives.
• Support assembly and testing of new product developments.
• Liaise with local and international stakeholders to maximise commercial opportunities.
• Promote a collaborative, high-performance engineering culture.

• HNC or Degree in Mechanical, Product, or Electro-Mechanical Engineering (or related discipline).
• Minimum 10 years' relevant engineering experience.
• Demonstrable experience designing oilfield downhole tools (essential).
• Advanced proficiency in CAD systems (Solid Works or Inventor preferred).
• Strong analytical capability with experience performing stress and load calculations.
• Experience conducting tolerance analysis at assembly level.
• Proven ability to solve complex client engineering challenges.
• Excellent written and verbal communication skills.
• Ability to manage competing priorities and work effectively under pressure.
• Self‑motivated, commercially aware, and team‑oriented.

• Operate in accordance with established HSE management systems.
• Ensure risks are identified and controlled within areas of responsibility.
• Promote safe working practices and environmental compliance.
• Participate in incident investigation and continuous improvement initiatives.
• Ensure appropriate training, supervision, and safe equipment usage within projects.

• Opportunity to work on technically challenging downhole tool projects.
• Involvement in full product lifecycle development.
• Collaborative engineering environment.
• Competitive remuneration package (commensurate with experience).