What are the responsibilities and job description for the Mechanical Engineer position at Roeslein & Associates?
Engineering
St. Louis, MO
ID: 4042-226
Full-Time/Regular
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. Please see our website to learn more Roeslein & Associates - Global EPC Services & Solutions.
Position Summary
The Mechanical Engineer will assist in the design and engineering of facility mechanical systems.
Essential Duties And Responsibilities
- Perform hydraulic, thermal, and code calculations to ensure safe, compliant, and cost-effective designs.
- Engineer process and utility piping systems, including specification selection, sizing, and material selection.
- Provide technical oversight to the piping and mechanical design team to achieve project objectives.
- Engineer process ductwork systems.
- Develop Process and Instrumentation Diagrams (P&IDs) for process and mechanical support systems.
- Specify and evaluate mechanical equipment, packaged systems, and specialty components.
- Oversee the development of plant and site layouts for process equipment and related assets.
- Coordinate vendor-supplied conveyor systems with process equipment.
- Prepare mechanical subcontract packages and support the subcontractor selection process.
- Review vendor data for specification accuracy, code compliance, and completeness.
- Prepare material take-offs as required.
- Collaborate with Electrical Engineers on the design of power distribution systems and control panels.
- Conduct pre-delivery inspections of fabricated, pre-assembled, and unitized system designs.
- Perform site mechanical inspections and review non-destructive test reports.
- Participate in plant commissioning activities, including cold and hot startup testing.
- Assist with operator training, as-built drawings, and turnover package delivery.
- Travel domestically and internationally (15-20% per year) to support system installation and startup.
- Build and maintain collaborative relationships across teams and locations.
- Follow all safety and company policies to maintain a secure and compliant work environment.
- Promote a positive working environment to support company goals.
- Perform other duties as assigned.
- Bachelor’s degree in Mechanical Engineering (required).
- Three (3) to five (5) years of experience in Mechanical Engineering (required).
- EIT registration (strongly preferred).
- Proficiency in AutoCAD and drafting tools.
- Experience developing P&IDs (preferred).
- Experience in selecting and specifying pumps, pressure vessels, and heat exchangers (preferred).
- Knowledge of pressure relief devices such as relief valves, conservation vents, and rupture disks (preferred).
- Understanding of piping materials and their applications (preferred).
- Strong mechanical aptitude with hands-on experience (strongly preferred).
- Excellent verbal and written communication skills.
- Strong analytical and problem-solving abilities.
- Effective time management skills.
- Ability to interact professionally with colleagues, clients, vendors, and other stakeholders.
- Must comply with company core values and operational best practices.
Roeslein & Associates is an Equal Opportunity Employer.
The job description does 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.
