Job title: Mechanical Engineer
Company: Roeslein & Associates
Job description: 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 .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.
OTHER DUTIES AND RESPONSIBILITIES:
- Promote a positive working environment to support company goals.
- Perform other duties as assigned.
SKILL / KNOWLEDGE / ABILITY / EDUCATION / EXPERIENCE:
- 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.
At 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 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.Required SkillsRequired Experience
Expected salary:
Location: Saint Louis, MO
Job date: Sun, 07 Sep 2025 22:48:03 GMT
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