Senior Process Engineer

Roeslein & Associates•St Louis, MO

32d•Hybrid

About The Position

Roeslein & Associates is a global leader in engineering, manufacturing, and construction services, specializing in modular, pre-fabricated solutions for the energy, beverage, and industrial sectors. With a focus on safety, innovation, and sustainability, Roeslein delivers turnkey project execution from concept to commissioning. Our team is driven by a commitment to quality and client success, operating across North America, South America, Europe, and Asia. The Senior Process Engineer will lead the process engineering effort on EPFC (engineer, procure, fabricate, construct) projects and provide guidance to less experienced process engineers. Work spans multiple sectors, including Oil & Gas, Refineries, Pharma, and Alternative Energy. Responsibilities include developing Process Flow Diagrams (PFDs), Material Balances, Process & Instrumentation Diagrams (P&IDs), process simulations, equipment datasheets, and calculations to support projects.

Requirements

Excellent oral and written communication skills
Strong analytical and problem-solving skills
Process simulation development experience
Knowledge of PFDs and P&IDs
Experience leading project development
Proficiency with Microsoft Windows-based programs
Ability to work flexible hours and occasional weekends
Valid driver’s license and acceptable motor vehicle record
Must be at least 21 years of age

Nice To Haves

Bachelor’s degree in Chemical Engineering from an accredited university
8–15 years of process engineering experience
EIT registration or desire to obtain Professional Certification
Experience with Management of Change (MOC)
Experience evaluating new technology
Experience developing small teams
Strong process, mechanical, and electrical aptitude with hands-on experience
Effective time management skills across multiple projects, personal conduct, and change management abilities
Ability to interact effectively with co-workers, clients, vendors, and other business contacts
Compliance with Roeslein & Associates’ core values for safe and efficient operations

Responsibilities

Provide process support for new projects, including: Develop process simulations and new models for complex projects
Develop material and energy balances for complex projects
Lead development of process flow diagrams (PFDs) and process & instrumentation diagrams (P&IDs)
Manage process requirements for equipment selection
Act as subject matter expert in Hazard and Operability Studies (HAZOPs)
Manage project permitting with clients
Coordinate and lead shop inspections, field commissioning, and project startup
Manage technology selection or develop new technology as needed
Coordinate proposal development for new projects
Lead improvements in work processes
Develop subject matter expertise in key areas
Participate in internal and external project meetings
Mentor and lead other process engineering team members
Conduct all activities in a safe and healthy manner in accordance with company requirements
Promote a positive working environment to achieve organizational goals
Perform other duties as assigned