Chemical Engineer Job Description (2026): Duties, Skills and Salary
A chemical engineer designs, runs and improves processes that turn raw materials into products: fuels, plastics, pharmaceuticals, food and specialty chemicals among them. They work on reactor design, separation processes, and scale-up from lab to plant, always with safety and cost as constraints as real as the chemistry itself.
Chemical engineers split roughly between process/plant roles, where they troubleshoot and optimize running operations, and R&D or process development roles, where they design new processes before they reach production scale. Process simulation software, a solid grip on thermodynamics and mass/energy balances, and plant safety standards are common across both.
Chemical Engineer job description template
Copy it, replace everything in [brackets] and cut what doesn't apply. Keep the requirements to what the job really needs.
Template · replace the [brackets]
Chemical Engineer
[Company] · [City and office days, or remote with the countries or time zones you hire in] · [Full-time]
About [Company]
[Two or three sentences on what your company does, who it serves and why this team matters now.]
About the role
[Company] is hiring a chemical engineer to support [process/product] at our [plant/R&D site]. You'll work on process design and troubleshooting, help scale processes from lab to production, and keep safety and quality at the center of the work.
What you'll do
- Design, model and optimize chemical processes using [Aspen Plus / HYSYS / process simulation software].
- Troubleshoot production issues and lead root-cause analysis on process deviations.
- Support scale-up from lab or pilot scale to full production.
- Perform mass and energy balance calculations and process safety reviews.
- Work with operations and maintenance teams to improve yield, quality and uptime.
- Ensure processes meet [OSHA / EPA / FDA] regulatory and safety requirements.
- Document process changes, SOPs and batch records.
- Support capital projects, from design review through commissioning.
What you'll bring
- Bachelor's degree in Chemical Engineering.
- [X]+ years in process, production or R&D engineering.
- Strong grasp of thermodynamics, fluid mechanics and reaction kinetics.
- Experience with process simulation software (Aspen, HYSYS or similar).
- Working knowledge of process safety management and relevant regulations.
- Comfort reading P&IDs and working on a plant floor.
Nice to have
- FE or PE license, or progress toward one.
- Six Sigma or Lean manufacturing training.
- Experience with [specific industry: petrochemical, pharmaceutical, food, specialty chemical].
- Statistical process control or DOE experience.
What we offer
- [Pay range: e.g. $X–$Y base salary, plus bonus or equity if offered]
- [Relocation assistance, PE license exam support, safety and production bonuses]
- [Health cover, retirement or pension plan, paid time off, parental leave]
- [Work authorization: whether you can sponsor a visa or hire through an employer of record]
[Our process: a recruiter call, a technical phone interview on process fundamentals, an on-site or virtual panel interview, and a plant tour for on-site roles.]
[Your equal opportunity statement, and how candidates can ask for adjustments during the process]
Put the pay range in the ad. Several US states, including California, Colorado, New York and Washington, require it in job postings, and the EU Pay Transparency Directive gives applicants the right to know the starting pay or its range before the interview.
Chemical Engineer duties by seniority
What the job usually looks like at each level. Pitch the ad at one level and say which in the title.
Junior
- Runs assigned calculations and process studies under senior review.
- Supports troubleshooting and documentation on the plant floor.
- Learns plant systems, safety procedures and simulation tools.
Mid-level
- Owns process improvement projects from analysis to implementation.
- Leads root-cause investigations on process upsets.
- Mentors junior engineers and interfaces with operations directly.
Senior
- Leads process design for new products or major capital projects.
- Sets process safety and engineering standards for the site.
- Mentors engineers and represents engineering in cross-functional decisions.
Chemical Engineer career path
- Process Engineer
- Senior Process Engineer
- Principal Engineer
- Engineering Manager or Plant Manager
Chemical engineers typically start in a process or production engineering role straight out of a chemical engineering degree, often in petrochemical, pharmaceutical or food manufacturing. From there, paths split between deepening technical expertise toward principal engineer roles, or moving into plant management and engineering leadership.
Similar roles
- Mechanical Engineer job description
Focuses on equipment and mechanical systems rather than chemical processes.
- Manufacturing Engineer job description
Optimizes production processes more broadly, not specific to chemical reactions.
- Environmental Engineer job description
Focuses on pollution control and regulatory compliance rather than production.
- Quality Engineer job description
Focuses on quality systems and defect reduction rather than process design.
- Project Engineer job description
Manages capital project execution rather than day-to-day process ownership.
Chemical Engineer job description FAQ
What does a chemical engineer do?
Designs and improves processes that convert raw materials into products, using mass and energy balances, process simulation and safety reviews. Work splits between running plants, troubleshooting production, and developing new processes in R&D.
What degree and certifications should a chemical engineer job description require?
A bachelor's degree in chemical engineering is standard. A PE license matters more for roles with regulatory sign-off responsibility and is often optional or nice-to-have elsewhere; state which applies.
What's the difference between a process engineer and a chemical engineer job posting?
They often describe the same role. Some companies use 'process engineer' for plant-floor troubleshooting and 'chemical engineer' more broadly including R&D, so check the responsibilities rather than the title alone.