Process Design Engineer

Job title – Process Design Engineer

Duration – 12 months initial

Start date – Looking for someone to start in April 2026 (subject to being medically and security cleared)

Shift patterns – Mon‑Fri 40 hours per week (hybrid – 3 days on site)

Pay rate – Inside IR35 DOE

Location – Whitehaven or Sellafield

• Provide Lessons From Experience (LFE) and apply knowledge of plant constraints throughout the project delivery process.
• Ensure all plans, drawings, and quantities are accurate and suitable for technical calculations.
• Produce and manage design documentation, including drawings and technical specifications.
• Control and coordinate configuration management of engineering deliverables and associated site works.
• Liaise with other designers and stakeholders to ensure compliance with design and construction regulations.
• Provide regular progress reports and technical updates to the Process Responsible Engineer (RE).
• Plan and prioritise work effectively, adapting to setbacks and resolving technical challenges as they arise.
• Use AutoCAD, Navisworks, and 3D scanning software proficiently to transfer accurate site data to the design team.
• Contribute site‑based knowledge and technical input to Design and Constructability Reviews.

• Hold an HNC/HND in Mechanical Engineering (or equivalent qualification).
• Demonstrate strong plant knowledge and experience working within an operational environment.
• Have working experience using CIMAGE on the SL System.
• A positive can‑do attitude, excellent communication and collaboration skills with the ability to work effectively across diverse project teams.
• Must hold appropriate Security Clearance (SC and British Sole National) and be a Sellafield pass holder.

Interested in this position? Please click “apply now”.

We try to respond to all applicants, but sometimes this is not possible due to high volumes of applications; if you have not heard from us within 14 days, regrettably it means you have been unsuccessful on this occasion.

Company information:

This contract vacancy is being advertised by Rullion Ltd.

Since 1978, Rullion has been securing exceptional candidates for a range of clients; from large well-known brands, to SMEs and start‑ups. As a family‑owned business, Rullion's approach is credible and honest, focused on building long‑lasting relationships with both clients and candidates.

Rullion is a forward‑thinking recruitment company that specialises in providing a wide range of talent consultancy services to a diverse client base; from small start‑ups to large household names.

We celebrate and support diversity and are committed to ensuring equal opportunities for both employees and applicants.