Treatment Engineer

After-Treatment Engineer (Contract)

An experienced After-Treatment Engineer is required to support the development, integration, and application of exhaust and after-treatment systems for diesel engines. The role will support ongoing long term future programmes, working closely with engine development, vehicle integration, and project engineering teams.
This position is suited to a senior contractor with strong system ownership and responsibility, rather than purely CAD execution, and proven experience within heavy-duty vehicle environments.

• Lead and support the design, integration, and application of exhaust and after-treatment systems
• Work with engine platforms and associated after-treatment technologies
• Provide system-level engineering responsibility, including packaging, integration, and performance considerations
• Produce and manage CAD designs and layouts using Creo
• Collaborate with engine development, vehicle integration, and project engineering teams
• Support on-site activities including design reviews, build support, commercial vehicle related work, and technical meetings
• Contribute to handover and knowledge transfer during staff transition periods
• Act as a senior technical point of contact within the after-treatment / exhaust discipline

• Proven experience as an After-Treatment, Exhaust, or Emissions Engineer
• Strong background in heavy-duty diesel engines
• Hands‑on experience with after‑treatment systems
• Experience working on emissions‑compliant exhaust systems
• Strong CAD capability using Creo
• Comfortable operating in a contract role with autonomy and system ownership

• Experience supporting engine or vehicle integration teams
• Background spanning both design and project engineering

• On‑site presence required; some flexibility available on working pattern
• Opportunity to support a long‑term programme