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The Senior Engineer II, Mechanical, Projects serves as the owner's engineer and mechanical project resource for fixed equipment and piping scope within the Refining Business Unit Projects organization for Phillips 66. This role is responsible for providing technical support, helping maintain expectations for quality and completeness, and reviewing key mechanical deliverables developed by EPC contractors, vendors, fabricators, and third-party engineering firms.
This position is a project-focused mechanical engineering role that applies strong technical knowledge and practical industry experience to support development and execution of capital projects. The role helps verify that proposed mechanical designs, specifications, materials selections, fabrication approaches, inspection plans, and execution strategies are technically sound, safe, reliable, constructable, economical, and aligned with Phillips 66 standards, business objectives, and Management of Change requirements.
The successful candidate must have solid working knowledge of fixed equipment and piping engineering and design activities across FEL, detailed design, procurement, fabrication, construction, and closeout, and be able to work effectively with project personnel, project management teams, less experienced engineers, and third-party engineering contractor teams to improve quality and consistency of deliverables. At this level, the engineer is expected to operate with growing independence, take ownership of assigned scopes, lead complex project tasks, and help guide junior engineers.
Willing and able to relocate to Houston, TX.
What You'll Do

• Support mechanical scope development and execution for capital projects, with responsibility for technical input, scope development, and early risk identification.
• Review mechanical project scope, design basis, process conditions, design conditions, and execution strategies to confirm alignment with project objectives, site requirements, company standards, and applicable codes.
• Review and provide technical guidance on pressure vessels, exchangers, tanks, piping systems, solids handling equipment, and related mechanical scope.
• Review EPC, vendor, fabricator, and third-party engineering mechanical deliverables to verify completeness, technical adequacy, constructability, and compliance with Phillips 66 requirements.
• Support quality assurance over mechanical deliverables to verify that fixed equipment and piping designs meet site expectations and project requirements.
• Review equipment layout, piping routing, access, maintainability, operability, and constructability considerations during project development.
• Help assure appropriate design conditions, metallurgy selections, corrosion allowances, welding procedures, inspection requirements, and mechanical integrity considerations are incorporated into project designs.
• Perform or review bolted joint assessments and flange management considerations for critical service applications.
• Review IFA and IFC mechanical design packages to verify technical quality, completeness, constructability, and alignment with project requirements and approved design basis.
• Participate in project milestone reviews including kickoff meetings, design reviews, model reviews, constructability reviews, and issue-for-approval / issue-for-construction package reviews.
• Support mechanical engineering aspects of Management of Change and help ensure changes are technically justified, properly documented, and effectively implemented.
• Provide technical input to contractor and vendor selection, fabrication strategy, inspection planning, and quality hold points for critical equipment.
• Support project teams in identifying mechanical risks, scope gaps, and early engineering needs during FEL to reduce execution risk.
• Coordinate with inspection, corrosion, reliability, process safety, operations, maintenance, procurement, construction, and project management stakeholders to ensure mechanical scope is integrated into the overall project.
• Support field execution by helping resolve technical issues, reviewing proposed changes, and providing practical recommendations while maintaining focus on safety, operability, reliability, cost, and schedule.
• Capture and communicate mechanical lessons learned from project execution to support continuous improvement and improve future project quality and predictability.
• Support development and improvement of mechanical engineering work processes, specifications, standards, and guidelines.
• Coach and mentor less experienced engineers and EPC personnel on expectations for sound mechanical project execution.
• Promote safe work practices and reinforce expectations for technically sound, practical, and sustainable project solutions.
• Help manage project scope, cost, and change within assigned responsibilities.
• Establish priorities, deliverables, and deadlines aligned with project objectives and business needs.
• Successfully manage competing priorities and multiple assignments while maintaining focus on business value and technical quality.

What You'll Bring-Required

• Legally authorized to work in the job posting country
• Bachelor's degree in Engineering or related field
• 10 or more years of petrochemical, refining, or related industry experience
• Broad experience and understanding of plant maintenance, operating, inspection, reliability, and project practices
• Possess or ability to obtain a TWIC card
• Possess a valid driver's license
• Able to travel up to 30% of time domestically to Phillips 66 plants with potential for international travel to fabricators or contractors

What Makes You Stand Out-Preferred

• Bachelor's degree or higher in Mechanical Engineering
• Strong technical expertise in fixed equipment and piping engineering, fabrication, materials, and construction practices associated with refinery or petrochemical projects
• Demonstrated ability to review and assess engineering work performed by others and provide practical technical direction
• Strong understanding of front-end loading, detailed design, procurement, fabrication, construction, and Management of Change processes for capital projects
• Ability to apply technical expertise to problem solving while achieving broad business objectives
• Ability to influence project teams, EPC contractors, vendors, and stakeholders without direct authority
• Strong written and verbal communication skills
• Personal discipline to balance short-term project needs with long-term safety, reliability, and business objectives
• Professional Engineer license

Compensation Range
This position has a base salary range of $160,200- $195,800.
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.
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 09/08/2026.
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