Principal Process Engineer
SI Group
Freeport, TX · Posted July 31, 2026
Just laid off? Start here: a plan for the first weeks
See every open role at SI Group
More in Texas job market · Manufacturing & Industrial · Engineering jobs
More roles at SI Group
- Category Manager - Logistics Procurement · The Woodlands, TX
- Senior Product Manager - Specialty Chemicals · Schenectady, NY
- Director, R&D, NA · Houston, TX
- Lead Process Controls Engineer · Morgantown, WV
- Director, Artificial Intelligence · The Woodlands, TX
- HR Generalist · Houston, TX
Similar jobs
- Regional Industrial Engineer · Novolex · Dallas, TX
- Manufacturing & Tech Ops - Process Engineer III/Lead Process Engineer - Project Farma · PerkinElmer · Austin, TX
- DCN Process Engineer · SLB · Houston, TX
- Principal R&D Engineer · Skyworks · Richardson, TX
- Principal Packaging Engineer · Skyworks · Austin, TX
- Process Engineer, Metallization · T1 Energy · Rockdale, TX
Engineering jobs in the rankings
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
AI use among industrial engineers is little observed so far. Measured exposure for industrial engineers: 4% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
About the job
The Role:
As the Principal Process Engineer, reporting to the Director - Process Engineering, you will drive process safety excellence, lead process optimization initiatives, develop innovative process designs for capital projects, and provide high-impact technical support to plant teams.
How You Will Make an Impact:
Drive Excellence in Process Safety
PHAs: Provide technical assistance with PHAs/LOPAs, CAPAs, specify SIF requirements
MOCs: Initiate and execute MOCs for process improvements and capital projects, as needed
Process Design: Develop Heat and Material Balances (HMBs), PSV calculation basis, capital project process design basis, process control functional specification narratives for new processes and collaborate with production to address gaps in current Process Safety Information (PSI)
Incident Investigation: Provide technical support as needed to ensure root causes are correctly identified
Create Value Through Innovation in Process Optimization
Identify, evaluate, and execute medium-term initiatives to drive improvements in yield, energy usage, capacity, and quality
Partner with cross-functional teams including production and maintenance to ensure solutions are sustainable
Leverage global process knowledge to ensure best practices are shared to drive improvements
Lead/support plant trials, as needed, for process improvements to mitigate business, quality, safety, and production risks and to document and trial data and results
Develop Innovative Designs
Develop process design basis for capital projects
Lead feasibility studies for potential new initiatives
Ensure technically sound detailed process engineering design is delivered to project team, including external engineering work
Participate in commissioning and startup teams, as needed
Own Technology of Plant Assets
Coordinate with process technology to ensure successful implementation of new products and process technologies
Lead/support plant trials, as needed, for new or improved products and new process technologies to mitigate business, quality, safety, and production risks and to document trial data and results
Develop big picture step change improvements of strategic plant assets
Develop strategic options for asset/product line footprints
Provide Technical Production Support
Provide technical assistance to plants for high impact issues and troubleshooting, as needed
Partner with process technology and other cross functional teams, to develop practical solutions to plant problems, as needed
Provide mentoring to production engineers
Creating Extraordinary Starts With:
Bachelor of Science Degree in Chemical Engineering
Minimum of 15 years of experience in chemical process and/or production engineering
Working knowledge of distributed control systems (DCS) and safety instrumented systems (SIS)
Working knowledge of standards such as API, ASME, NFPA, etc.
What We Value: We strive for all employees to nurture physical, mental and emotional health both personally and professionally. Our commitment to health and wellness centers around prevention, early detection and embracing a healthy lifestyle. Some offerings may vary by role or region, but may include:
Physical Health benefits including competitive Medical, Dental, and Vision packages, company contribution to Health Savings Account, cash incentive for Annual Physical and reimbursement
Financial Wellness opportunities including company paid life insurance and disability plans, 401(k) Retirement Plan with generous company match, and certified Financial Planning & Investment services
Mental Health benefits including generous Paid Time Off and 10 Paid Holidays, Paid Parental Bonding Leave, and much more!
Essential Solutions with Extraordinary Results
SI Group is a global leader in the innovative technology of performance additives, process solutions, active pharmaceutical ingredients, and chemical intermediates. Our solutions are essential to many diverse industries and applications, creating extraordinary results. We drive value by enhancing the quality, performance, and durability of countless items we use every day.
We are on a journey to captivate our customers at every level. Whether that means expanding our capabilities, global reach, or providing new innovations and technologies that create value. Our approach is customized to exceed customer needs and deliver superior performance.