Validation Engineer Job Description

A Validation Engineer produces the documented proof that equipment, utilities, software and manufacturing processes in a regulated plant do what they were bought or built to do, every time. In drug, biologic and medical device manufacturing, that proof decides whether a line can ship product or has to sit idle. O*NET's one-line definition of the occupation is direct: validation engineers "design or plan protocols for equipment or processes to produce products meeting internal and external purity, safety, and quality requirements."

The work follows a lifecycle. It opens with requirements: a user requirements specification stating what a bioreactor, a vial filler or a laboratory information management system must do, and a risk assessment that decides which functions earn the heaviest testing. Next come qualification protocols, the installation, operational and performance qualification sequence known as IQ, OQ and PQ, each with acceptance criteria, numbered test steps and blank fields for recorded results, all approved before anyone touches the equipment. Execution follows, run by the engineer or by technicians the engineer directs. Any step that fails becomes a deviation, and the summary report cannot be approved until each one has a documented investigation and disposition.

Process validation sits on top of equipment qualification. Before a commercial product launches, the team runs process performance qualification batches to show that qualified equipment, released materials and the written batch record together turn out product that meets specification. After launch, continued process verification watches trend data for drift. Cleaning validation, sterilization and depyrogenation studies, temperature mapping of warehouses and stability chambers, and analytical instrument qualification can all land on the same desk.

Software is the other half of the job. Manufacturing execution systems, electronic batch records, chromatography data systems and quality management platforms each need evidence that they fit their intended use. FDA's General Principles of Software Validation states that systems used to create, modify and maintain electronic records "are also subject to the validation requirements," and it describes 21 CFR Part 11 as adding "security, data integrity, and validation requirements when records are created or maintained electronically." A computer system package ties every requirement to the test that proves it through a traceability matrix.

O*NET's task list for the occupation also covers work that job titles hide: communicating "with regulatory agencies regarding compliance documentation or validation results," auditing qualification programs, keeping databases of validated systems and training operators on validation procedures. Change control ties the pieces together. When a gasket supplier changes, a recipe parameter moves or a software patch arrives, the validation engineer decides what has to be retested and writes down why everything else stays in a validated state.

The records outlive the project. An investigator can pull a protocol years after it was signed, so a good engineer writes each acceptance criterion, deviation rationale and conclusion for a reader who was never in the room.

Education. O*NET places Validation Engineers in Job Zone Four, the band for occupations that need considerable preparation, and 90% of the respondents it surveyed said a new hire needs a bachelor's degree. As a rough guide, chemical, mechanical, biomedical and industrial engineering degrees are common entry points, along with chemistry, biochemistry and microbiology for engineers who start on the laboratory side. A master's degree can help with process development or statistics-heavy roles.

Experience. As a rough guide, entry-level validation roles take new graduates or people with one to two years in quality control, quality assurance or manufacturing. Lead and senior roles typically expect five or more years of executing and approving protocols, often with experience defending the work in person during a regulatory inspection or customer audit. Some commissioning, qualification and validation (CQV) contractors start as junior protocol executors on a facility startup and build their range one system at a time.

Regulatory literacy. The job runs on knowing which rule applies to which record. Drug and biologic sites work under FDA's current good manufacturing practice regulations; device makers work under 21 CFR Part 820. Electronic records and signatures fall under 21 CFR Part 11. On the software side, engineers work from ISPE's GAMP 5 (Second Edition) and the other guides in the ISPE GAMP series, and device-side engineers also follow FDA's computer software assurance guidance for production and quality software.

Technical skills.

• Writing protocols that a technician can execute without guessing, with acceptance criteria tied to a requirement
• Risk tools such as failure mode and effects analysis (FMEA) to scale testing to impact
• Statistics for sampling plans, capability studies and PPQ batch evaluation; O*NET's software list for the occupation includes Minitab and The MathWorks MATLAB
• Quality system platforms; O*NET lists Sparta Systems TrackWise under compliance software
• Reading P&IDs, PLC and SCADA configurations, and vendor turnover packages

Certifications. Credentials worth considering include the ASQ Certified Pharmaceutical GMP Professional (CPGP), the ASQ Certified Quality Engineer (CQE) and, for engineers who lean toward computerized systems, the ASQ Certified Software Quality Engineer (CSQE).

Career path. One ladder runs from associate or junior validation engineer to validation engineer, senior or lead engineer, and then validation manager or site quality leadership. Lateral moves into automation engineering, quality assurance, technology transfer or CQV consulting use the same protocol and inspection experience.

BLS does not report validation engineers separately. ONET files them as a specialty under Industrial Engineers (SOC 17-2112), an occupation BLS counted at 365,740 jobs across all industries in May 2025, with a national median wage of $102,440. ONET rates the parent occupation's projected growth for 2025 to 2035 as "much faster than average (7% or higher)," with about 23,100 openings a year on average, and tags Validation Engineers with its Bright Outlook label. Those projections describe industrial engineers as a whole, not validation work alone.

Two regulatory changes affected device-side validation in 2025 and 2026. On Sept. 24, 2025, FDA issued final guidance on computer software assurance for production and quality system software used by medical device makers. It superseded Section 6 of the agency's General Principles of Software Validation, the part covering automated process equipment and quality system software, and FDA reissued it in February 2026 under a new title, Computer Software Assurance for Production and Quality Management System Software. The guidance describes "a risk-based approach to establish confidence in the automation used for production or quality management systems" and points to where "additional rigor may be appropriate." For a validation engineer, that puts the weight on justifying, in writing, where testing effort goes and why.

The second change was the Quality Management System Regulation (QMSR), which became effective on Feb. 2, 2026, amending 21 CFR Part 820 to incorporate ISO 13485:2016 by reference. The same day, FDA stopped using its Quality System Inspection Technique (QSIT) for device inspections. FDA encouraged manufacturers to review the current QMSR to ensure compliance with its requirements.

On the drug side, federal policy now addresses domestic manufacturing. Executive Order 14293, issued May 5, 2025, set a policy to streamline the regulation of pharmaceutical manufacturing and directed FDA to review existing regulations and guidance. FDA's response, the PreCheck pilot program, offers early engagement for new U.S. plants; its first phase uses pre-operational reviews that assess "facility design and construction, equipment design and qualification," and FDA said Phase 1 participants would begin PreCheck activities in 2026. FDA's program page states that as of 2025, approximately 53% of branded drug products and 69% of generic drug products were made outside the United States, and only 11% of active pharmaceutical ingredient manufacturers were U.S.-based. Every new plant has to qualify its utilities, equipment and computerized systems before it can supply commercial product.

For an engineer planning a career, the CSA guidance points toward a risk-based test strategy and a validation decision that can be defended in writing to an investigator. Drug and biologic manufacturers, device companies, contract manufacturers and CQV consulting firms all employ engineers who can cover equipment qualification, computerized systems or both.

Dear Hiring Manager,

I am applying for the Validation Engineer opening on your sterile injectables team. For the past three years I have worked as a validation engineer at a contract manufacturer that fills biologics into vials and prefilled syringes, where I own qualification for the filling suite and share computerized system work with our IT quality group.

My strongest work has been on a new isolator filling line. I wrote the user requirements with the process engineers, ran the risk assessment that set our testing depth, and authored the IQ and OQ protocols for the isolator, the decontamination cycle and the line's checkweigher. During OQ we found that the vaporized hydrogen peroxide cycle missed its target in one glove port. I opened the deviation, worked with the vendor on a revised load pattern and wrote the requalification rationale that our quality unit approved on the first review.

On the software side, I helped validate our move to an electronic logbook system. I built the traceability matrix, wrote unscripted test charters for low-risk reporting functions and kept scripted testing for audit trail and electronic signature controls. That split cut our execution time without leaving a gap a reviewer could question.

I want to grow into process validation. I have supported two PPQ campaigns as a protocol executor and want to own the statistical side, from sampling plans to continued process verification. Your site's pipeline of new products would give me that chance, and my qualification background would let me contribute from the first week.

I would welcome a conversation about the role.

Sincerely, Jordan Avery