Assistant Refinery Jobs in Texas (NOW HIRING)

Phillips 66 & YOU - Together we can fuel the future

As a CEMS Technician at the Sweeny Refinery, you will play a key role in maintaining environmental analyzer systems and associated equipment to support safe, reliable, and compliant operations.

This position requires the successful completion of an online assessment. If you meet the required qualifications of the position, a link to complete the assessment will be emailed to you immediately after your completed application is received. Please check your spam folder if you do not see the email. The assessment must be completed within 7 days of your application date OR prior to the job posting expiration date (August 5, 2026), whichever is earlier. Your assessment results will be valid for one year. 

What You'll Do 

• Perform calibrations, programming, and repairs on environmental analyzers and associated equipment. 
• Perform daily rounds on shelters and CEMS systems, including changing calibration and carrier gas cylinders. 
• Maintain CEMS analyzers with greater than 95% availability each quarter. 
• Communicate with operations and environmental personnel regarding CEMS-related questions and issues. 
• Maintain up-to-date maintenance logs on each CEMS system. 
• Complete 7-day drift tests, CGAs, and other environmentally regulated preventive maintenance tasks. 
• Maintain and order spare parts and calibration gas inventory. 
• Modify existing and create new preventive maintenance tasks for analyzers. 
• Work with the Analytical Engineer to improve or upgrade analytical equipment for better reliability and performance. 
• Serve as a technical SME to assist analyzer technicians as needed. 

What You'll Bring - Required 

• Legally authorized to work in the job posting country.
• Possess a valid in-state driver's license. 
• Associate's degree in Instrument Technology, Analytical Technology, or a related degree. 
• Must be willing and able, with or without reasonable accommodation, to comply with the following: 
  • Walk, stand, stoop, sit, climb, and carry material daily. 
  • Work at various heights up to 200 feet. 
  • Listen and follow instructions. 
  • Communicate orally and in writing with team members, leaders, and operations/environmental personnel. 
  • Use a variety of safety and personal protective equipment. 
• Work overtime and/or respond to callouts based on operational performance and business need. 

What Makes You Stand Out - Preferred 

• Strong work ethic. 
• 5 or more years of analytical or analyzer experience. 
• Refinery experience in instrumentation or analytical work. 
• Intermediate proficiency with Microsoft Word, PowerPoint, Excel, and SAP. 
• Experience calibrating and troubleshooting gas chromatographs, including Maxum, Emerson, or Yokogawa GC8000. 
• Experience designing and troubleshooting sample conditioning systems. 
• Experience with CEMS and opacity monitoring. 
• Experience with basic networking and Modbus communication. 

Compensation Range

This position has a base salary range of $110,700 - $135,300.

At Phillips 66, we are committed to pay transparency and competitive, equitable compensation. Each role is assigned a salary grade with a defined pay range, benchmarked against industry peers. Where a candidate offer falls within the posted range depends on the candidate's experience, skills, and alignment with the role's requirements. Offers are made to ensure internal equity and market competitiveness. Our compensation programs are designed to reward performance and support career growth.

The Sweeny Refinery is located in Old Ocean, Texas. Refinery facilities include crude distilling, naphtha reforming, fluid catalytic cracking, alkylation, hydrodesulfurization, and aromatics units, as well as access to the on-site vacuum tower and delayed coking unit, which is an asset owned by Phillips 66 Partners. Sweeny processes heavy, high-sulfur crude oil and some light, low sulfur crude oil. Domestic, Canadian and other foreign crude oil is transported by truck, pipeline, marine transportation and terminals. The refinery produces a high percentage of transportation fuels. Other products include petrochemical feedstocks, heating oil and petroleum coke. The refinery receives crude oil by pipeline and via tankers, through terminals on the Gulf Coast, including a deepwater terminal at Freeport. Refined products are distributed throughout the Midcontinent region, southeastern and eastern United States by pipeline, barge and rail car. Refined products are also exported to Latin America by waterborne cargo.

Total Rewards

At Phillips 66, providing access to high quality programs and care for you and your family is important to us. Maintaining a culture of well-being - physical, emotional, social, and financial - is essential for a high-performing organization. When we are at our best, we are poised to deliver exceptional results - personally and professionally. Benefits for certain eligible, full-time employees include:

• Annual Variable Cash Incentive Program (VCIP) bonus
• 8% 401k company match
• Cash Balance Account pension
• Medical, Dental, and Vision benefits with an annual company contribution to a Health Savings Account for employees on HDHP
• Total well-being programs and incentives, including Employee Assistance Plan, well-being reimbursement, and backup family care services

Learn more about Phillips 66 Total Rewards.

Phillips 66 has more than 140 years of experience in providing the energy that enables people to dream bigger and go farther, faster. We are committed to improving lives, and that is our promise to our employees and our communities. We are sustained by the backgrounds and experiences of our diverse teams, which reflect who we are, the environment we create and how we work together. We have been recognized by the Human Rights Campaign, U.S. Department of Labor and the Military Times for our continued commitment to inclusive practices and policies in the hiring and retention of those in the LGBTQ+ community and military veterans. Our company is built on values of safety, honor and commitment. We call our cultural mindset Our Energy in Action, which we define through four simple, intuitive behaviors: We work for the greater good, cultivate an environment of trust, seek different perspectives and pursue excellence.

Learn more about Phillips 66 and how we are working to meet the world's energy needs today and tomorrow, by visiting phillips66.com.

To be considered

In order to be considered for this position you must complete the entire application process, which includes answering all prescreening questions and providing your eSignature on or before the requisition closing date of 08/05/2026.

Candidates for regular U.S. positions must be a U.S. citizen or national, or an alien admitted as permanent resident, refugee, asylee or temporary resident under 8 U.S.C. 1160(a) or 1255(a)(1).  Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.

Phillips 66 is an Equal Opportunity Employer