Process Engineer IV

EngineeringSt. Louis, MOID: 4059-226Full-Time/RegularRoeslein Renewables, a division of Roeslein & Associates, develops and operates Renewable Natural Gas (RNG) projects across the United States. Headquartered in St. Louis, Missouri, the company partners with landowners, farmers, and communities to reduce on-farm emissions, restore native prairies, and deliver long-term value through regenerative energy solutions. Our team captures biogas from agricultural waste and upgrades it into RNG for pipeline injection. With more than 30 RNG projects completed across multiple states, the company is recognized for its commitment to environmental stewardship and innovation. We value integrity, professionalism, and transparency—and we never stop asking, “What more can we do?”Position SummaryThe Process Engineer IV will be responsible for managing new project development, optimizing existing operating assets, and leading other process engineers. Process development will span many sectors including Oil & Gas, Refineries, Pharma, and Alternative Energy. Work will include development of Process Flow Diagrams (PFDs), Material Balances, Process & Instrumentation Diagrams (P&IDs), process simulations, equipment datasheets, and calculations to support projects. This role will also drive improvements in work processes, lead operations support, monitor environmental impact, develop dashboards and training tools, and identify and implement process optimization projects.Essential Duties And ResponsibilitiesEngineering – provide process support for new projects, including:Develop process simulations and new models for complex projectsDevelop material and energy balances for complex projectsLead development of process flow diagrams (PFDs) and process & instrumentation diagrams (P&IDs)Manage process requirements for equipment selectionAct as subject matter expert for process engineering in Hazard and Operability Studies (HAZOPs)Manage project permitting with clientsCoordinate and lead shop inspection, field commissioning, and start-up of projectsManage technology selection or develop new technology as neededCoordinate proposal development for new projectsLead improvements in work processesDevelop subject matter expertise in needed key areasParticipate in internal and external project meetingsOperations – Support Existing Operating Units, IncludingUpdate P&IDs as requiredManage Management of Change (MOC) protocolsOptimize existing units to improve performance and reduce energy consumptionManage implementation of improvement projects at existing facilitiesSupport environmental services reporting and develop tools for new marketsPartner with Operations to lead troubleshooting and determine root causesMentor and lead other process engineering team membersOther Duties And ResponsibilitiesConduct activities in a safe and healthy manner and work in accordance with established safety and company requirementsPromote a positive working environment in order to achieve the organization’s goalsTravel domestically and internationally, ranging from 10–20% per year, with potential for increased travel during project start-up periodsPerform other duties as assignedWork EnvironmentWork is performed in an office and uncontrolled atmosphere. Exposure to harsh conditions is possible for short periods of time—such as: dust, fumes, chemicals, hazardous materials, noise, and varying weather and temperatures. All employees are required to follow safety standards and wear all personal protective equipment in designated areas.Physical DemandsWhile performing the duties of this position, the employee will regularly be required to walk, stand, use hands and fingers, grip, handle or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch or crawl; talk and hear; and work in a consistent state of alertness and in a safe manner. Ability to lift and carry 25 lbs. on a regular basis is required.RequiredSkill / Knowledge / Ability / Education / ExperienceExcellent communication skills, both oral and writtenStrong analytical and problem-solving skillsProcess simulation development skillsProcess knowledge of PFDs and P&IDsExperience leading project developmentComputer skills and an in-depth knowledge of Microsoft Windows-based programsMust have a valid driver's license and maintain an acceptable motor vehicle recordMust be at least 21 years of agePreferredBachelor’s degree from an accredited university in Chemical Engineering8-15 years of experience in process engineeringEIT registration or desire to obtain Professional CertificationOperations experience with process optimization and implementing improvement projectsExperience with Management of Change (MOC)Experience with environmental monitoring and reporting (i.e., Low Carbon Fuel Standard (LCFS), Renewable Identification Number (RIN) generation, etc.)Experience evaluating new technologyExperience managing and developing small teamsStrong process, mechanical and electrical aptitude and hands-on experienceKeys To SuccessEffective time management skills across multiple projects, personal conduct, and change management abilitiesAbility to effectively interact with co-workers, operations, clients, vendors, and other business contactsCompliance with Roeslein & Associate’s core values for the safe and efficient operation of the business and maintaining sound relationships among and with employeesBenefits & Additional InformationAt Roeslein, we invest in our team members' success and well-being. Full-time employees are eligible for competitive wages, bonus program, paid time off, personal and recovery days, travel bonuses, and paid holidays. Our retirement benefits include a 401(k) with company match and an ESOP (Employee Stock Ownership Program). We also offer medical, dental, and vision coverage, short and long-term disability insurance, life and travel insurance, and paid parental leave. Additionally, we support your growth with tuition reimbursement and continuing education opportunities to help you achieve your personal and professional goals.Roeslein & Associates is an Equal Opportunity Employer.The job description may not necessarily contain all of the actual or essential duties of this position. All job offers are contingent upon passing a drug screen and criminal background check.