Senior Process Engineer Jobs in O Fallon, MO (NOW HIRING)

About Us

Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for industrial, commercial, institutional, and residential related building projects.

About LJC

LJC Design & Engineering is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, and construction.

The Role We Want You For
The Senior Process Designer will oversee all aspects of process design workflows, providing strategic direction to design teams, mentoring team members, and ensuring deliverables consistently meet client goals, regulatory standards, and organizational objectives. Senior Process Designers play a pivotal role in ensuring project success through technical leadership and continuous process improvement.

The Specifics of the Role

• Lead the creation of intricate designs, including multi-discipline integrations, advanced piping layouts, and comprehensive system diagrams.
• Develop, implement, and enforce company-wide standards for quality, accuracy, and compliance across all projects.
• Mentor junior and mid-level designers, promoting professional development, skill advancement, and team cohesion.
• Collaborate closely with clients to refine deliverables, address feedback, and align designs with overall project objectives.
• Innovate workflows by adopting new tools, technologies, and processes to improve team efficiency, accuracy, and productivity.
• Ensure all designs adhere to safety regulations, industry standards, and organizational best practices, identifying and mitigating risks proactively.

Requirements

• Drafting/Technical computer aided drafted degree from accredited institution.
• 10+ years of extensive process design experience, demonstrating mastery in AutoCAD, Plant 3D, Navisworks, and other advanced modeling tools.
• Exceptional problem-solving skills, capable of addressing complex multidisciplinary challenges and ensuring seamless project execution.
• Proven leadership abilities to manage diverse teams, enforce high-quality standards, and provide technical mentorship.
• Expertise in integrating client feedback, aligning project deliverables with client expectations, and ensuring compliance with all regulatory requirements.
• Strong communication skills to effectively interact with clients, stakeholders, and multidisciplinary teams, driving collaboration and alignment.

Some Things You Should Know

• No other builder can offer the collaborative design-build approach that Clayco does.
• We work on creative, complex, award-winning, high-profile projects.

Why Clayco and LJC?

• 2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal.
• 2025 ENR Top 400 – Top Data Center Contractor (Top 3).
• 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5).
• 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3).

Benefits

• Discretionary Annual Bonus: Subject to company and individual performance.
• Comprehensive Benefits Package Including: Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs.

Compensation

• The salary range for this position considers a wide range of factors in making compensation decisions including but not limited to: Education, qualifications, skills, training, experience, certifications, internal equity, and location. Compensation decisions are dependent on the facts and circumstances of each case.