Validation & CQV

What a Validation Engineer actually does

A Validation Engineer turns "the system works" into evidence an inspector accepts. The work is the qualification lifecycle: user requirements, risk assessment, design review, IQ/OQ/PQ, and the reports that close each stage. On a capital project that means months of commissioning and qualification with a hard start-up date; in a running site it means cleaning validation, process validation, requalification and the change controls that touch the validated state.

CQV Engineers live on the project side, often embedded with an engineering firm or an A&E consultancy. CSV specialists cover the computerised systems, from a chromatography data system to an MES, under GAMP 5 and Annex 11.

What we look for when we screen

We ask which protocols the candidate has written and executed, not reviewed. We ask how the worst case was chosen for the last cleaning validation, what the acceptance criteria were based on, and what happened when a test failed during execution. A good engineer can defend a deviation in a qualification report; a paper one has never had one.

We also test:

• Risk-based thinking: ASTM E2500, how the risk assessment shaped the test scope.
• Annex 15 fluency: continued process verification, requalification periods, the validation master plan.
• Annex 1 impact for sterile projects: isolators, sterilisation, aseptic process simulation.
• CSV depth where relevant: GAMP categories, audit trails, data migration.
• Working style: can you hold a construction contractor and a QA reviewer to the same schedule?

Regulations you will live with

Annex 15 and Annex 11, GAMP 5 second edition, ASTM E2500, ICH Q8 and Q9, and the FDA process validation guidance for sites that export to the US. Medical device plants add ISO 13485.

Typical employers

Biologics and vaccine sites in expansion, sterile CDMOs upgrading to the 2023 Annex 1, engineering firms and A&E consultancies, API manufacturers and medical device plants across the European Union.

Career path

Engineers typically enter from process, mechanical or chemical engineering or from a QC background. Senior Validation Engineer, Validation Lead and Validation Manager follow; CQV project leads and CSV specialists are the most sought-after profiles. Salary bands and interim day rates are in the salary guide.

Permanent, interim or freelance?

Capital projects are naturally interim: a long stretch of intense CQV, then a small permanent team for lifecycle maintenance. Permanent validation roles suit sites with an ongoing programme and a validation master plan to own. We place all three and tell you honestly which one your situation needs.