Senior Process Engineer

S enior Process Engineer
Location: Englewood, CO (Denver Metro Area)
Employment Type: Contract-to-Hire

Overview

We are seeking a Senior Process Engineer to support our client's growing portfolio of projects in the Denver, CO area. In this role, you will provide high-level process engineering expertise across oil refining, pipeline, gas processing, and/or chemical industry projects. You will work under the guidance of a Lead Process Engineer while also mentoring junior team members and contributing to project leadership and execution.

This is an excellent opportunity for a seasoned engineer who thrives in a collaborative, multi-disciplinary environment and is passionate about delivering high-quality engineering solutions.

Key Responsibilities

• Deliver process engineering services in compliance with client, customer, and regulatory requirements-on time and within budget
• Initiate, manage, and (as needed) supervise process engineering activities across assigned projects
• Participate in project meetings, prepare progress reports, and follow established quality and checking procedures
• Ensure project scope clarity and manage changes in accordance with project change management processes
• Provide technical support during procurement, construction, and commissioning phases
• Define project requirements, assign tasks, and oversee progress, including promoting workshare where appropriate
• Identify and resolve discrepancies between client and customer requirements
• Communicate resource needs and planning requirements to the Process Engineering Manager
• Collaborate effectively with internal teams and external stakeholders, including clients
• Identify technical challenges, develop solutions, and escalate issues when necessary
• Provide mentorship and technical oversight to junior and mid-level engineers

Technical Responsibilities

• Develop, review, and approve key process engineering deliverables, including:
  • Process Flow Diagrams (PFDs)
  • Heat & Material Balances (HMBs)
  • Piping & Instrumentation Diagrams (P&IDs)
• Build and maintain process simulations using tools such as Aspen HYSYS, UniSim Design, or similar
• Perform:
  • Line sizing, velocity, and pressure drop calculations
  • Equipment sizing and specification (vessels, heat exchangers, pumps, compressors, control valves, PSVs)
• Conduct Pressure Safety Valve (PSV) analysis and sizing (Iprism experience preferred)
• Perform relief system and flare system analysis

Qualifications & Experience

• 10+ years of process engineering experience in oil & gas, refining, or chemical industries
• Proven experience leading process engineering efforts on multi-disciplinary projects
• Strong technical, analytical, and problem-solving skills
• Demonstrated ability to deliver accurate, high-quality work within deadlines
• Solid understanding of process engineering fundamentals and cross-discipline coordination
• Knowledge of applicable codes, standards, and regulatory requirements

Technical Skills

• Experience with process simulation and engineering software, including:
  • AspenTech (HYSYS, Flare System Analyzer, etc.)
  • Client UniSim
  • BRE ProMax
  • Hydraulic modeling tools
• Proficiency with Microsoft Office Suite
• Preferred experience:
  • OGLA (Oil & Gas Location Assessment)
  • Pipeline hydraulic analysis
  • Flow assurance

Education

• Bachelor's or Master's degree in Chemical Engineering or related field from an ABET-accredited institution

Preferred Credentials

• Professional Engineer (PE) license preferred
• Colorado and/or California PE license strongly preferred

Aspen Technical Staffing
CELEBRATING 25 YEARS
~2001-2026~

We are an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, gender identity or expression, national origin, disability, veteran status, or any other protected characteristic under the law. Assistance with the application process is available upon request.