Process Engineer Salary 2026: Fab, Battery and Aerospace Manufacturing Pay

Pay bands by rung in 2026

Six bands, each anchored to the federal series that best matches the rung and filled in with posting data where BLS does not split the title. The three discipline spines are shown separately because a process engineer hired on a chemical engineering degree, a mechanical degree or an industrial degree is benchmarked against a different federal median by every compensation team that uses OEWS.

Sources: BLS OEWS May 2025 national, state, metro and industry estimates for SOC 17-2041, 17-2141, 17-2112, 17-2199 and 11-9041 (OEWS query system, retrieved September 15, 2026); BLS Occupational Outlook Handbook 2025-35 editions for chemical and industrial engineers; ZipRecruiter national pages dated September 15, 2026; Indeed salary pages dated August 19-September 7, 2026; Salary.com benchmarks dated September 1, 2026; Payscale pages updated July 12-13, 2026; Greenhouse job-board postings from five employers retrieved September 15, 2026; Glassdoor industry medians retrieved September 15, 2026.

Why the same title pays $84,921 on one site and $125,040 on another

The aggregators are matching on strings, and the string “process engineer” covers a technologist tuning an extruder at a plastics plant and a PhD chemical engineer owning a deposition module at a fab. Payscale’s $84,921 and ZipRecruiter’s $92,018 skew to the plastics, food, fabricated-metal and contract-manufacturing postings that make up most of the title’s volume; the federal 17-2112 median in plastics product manufacturing is $96,620 and in fabricated metal $93,170, which is where those figures come from. Indeed’s $98,575 catches more Houston and New Jersey chemical and pharma postings and lands higher. The 17-2041 median of $125,040, built from employer payroll reports, counts only degreed chemical engineers, of whom 6,060 sit in chemical manufacturing at a $112,300 median and 1,020 in petroleum and coal products at $136,810. ZipRecruiter’s semiconductor process engineer page returns the identical $92,018 as its generic page, a sign it is not a separate sample, so we do not use it as a fab benchmark.

What environment, discipline and clearance add on top of base

On this ladder the employer’s process environment is worth more than the next promotion. A chemical engineer who moves from a plastics plant to a fab or a refinery changes the federal median by $28,000 to $36,000 before negotiation, and the posted ranges from space, defense-tech and photonics employers sit above every federal 75th percentile in the table.

The compounding is the point. A process engineer at the $92,018 posted average who moves to a fab or refinery reaches the $125,040 to $136,810 federal medians on discipline and industry alone; add a senior level at a space or defense-tech employer and the posted bands run $135,000 to $215,000 before the clearance differential. It is also why comparing a process engineer offer from a plastics converter to one from a launch site or a fab by base alone is close to meaningless without the discipline, cleanroom scope and clearance requirement attached.

Regional and industry spread

Process engineering pay follows the plants being built. Texas and Louisiana medians are set by refineries and chemical complexes; California, Washington and Oregon by fabs, launch manufacturers and hyperscale supply chains; Arizona and Ohio still reflect the pre-fab economy even as TSMC, Intel and the battery joint ventures hire into them. State and metro figures below are BLS OEWS May 2025 medians for the series named; posting data is labeled.

The geography that matters is inside the industry column. An Ohio chemical engineer at the $111,200 state median and a Texas one at $132,750 are $21,550 apart; the same engineer moving from a plastics plant to a refinery is $36,610 apart on the federal industry medians, and the manufacturing and aerospace and defense employers standing up fabs, cell plants and launch sites price against the top of that column, not the state table.

Where process engineer pay is heading

The federal projections point up on every spine. The BLS Occupational Outlook Handbook projects 5% growth for chemical engineers over 2025–35 with about 1,100 openings a year on 21,900 jobs, 12% for industrial engineers with about 23,100 openings a year on 365,100 jobs, and 11% for mechanical engineers, all faster than the all-occupation average. The process engineer title draws from all three, and the industrial-engineer series, where most fab and assembly process engineers are counted, is the fastest-growing engineering occupation the handbook tracks.

The demand is concentrated in the environments where process yield is the schedule risk. Fabs in Arizona, Ohio, Texas, Idaho and New York, cell plants across the Southeast and Midwest, and propulsion and satellite production lines in California, Texas, Washington and Alabama all need process engineers who can bring a module from qualification to rate, and the posted ranges those employers publish, $100,000–$130,000 at Level 1 and $135,000–$215,000 at Level 3 on the space launch board, sit at or above the federal 75th percentiles for the series. Advanced nuclear is the newest bidder: a Santa Clara developer posts $80,000–$155,000 for a generalist process engineer, $100,000–$160,000 for fuel recycling and $130,000–$200,000 for isotope process engineers (retrieved September 15, 2026).

The posting data is drifting toward the federal spine. ZipRecruiter’s senior process engineer average of $121,116 now sits within $4,000 of the 17-2041 national median, and Indeed’s senior figure of $117,472 clears the 17-2141 75th percentile of $132,590 in its top metros, Santa Clara at $137,858 and San Diego at $134,108. Expect the entry rung to move next: employers in Arizona and Texas that cannot find degreed chemical engineers locally, where the state counts are 80 and 2,610, are already posting mechanical and industrial process seats at chemical-engineer money.

What this means for hiring process engineers

For employers, the practical read is that the process engineer title is mispriced by the aggregators in both directions. An offer built on the $84,921 Payscale figure will not clear a degreed chemical engineer at a fab or refinery, where the federal medians are $128,530 and $136,810; an offer built on the $125,040 national chemical-engineer median overpays for a manufacturing process seat at a plastics or fabricated-metal plant where the industrial-engineer median is $93,170 to $96,620. Write the req against the discipline and industry cut that match your plant, state the level explicitly, and budget cleanroom, propulsion and cleared seats against the posted employer ranges rather than the federal table. Hiring a manufacturing engineer, industrial engineer or quality engineer alongside should be priced on the 17-2112 series, not the chemical spine.

For candidates, the leverage is in the environment column. A process engineer at the $92,018 posted average with GMP, cleanroom or dry-room experience is a candidate for fab, cell-plant and satellite-production seats posting $115,000–$160,000 at Level 2, and a senior with module ownership and clearance eligibility is a candidate for the $146,000–$194,000 defense-tech bands. iRecruit is building candidate density across the process engineering ladder for reindustrialization manufacturers, from Process Engineer I through process engineering manager, so employers standing up a new line can shortlist against the environment, not the string.

For the hiring side of this market, see the Manufacturing Recruiters practice.