Associate Principal , Process Mechanical

Sky Mavis; St. Louis (MO); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Discretionary annual bonus

Comprehensive benefits package

Generous PTO and paid holidays

Job summary

Sky Mavis in St. Louis, Missouri, is seeking a highly technical engineering leader to lead process design efforts in industrial projects. This role involves collaborating with multidisciplinary teams to ensure safe and efficient process solutions aligned with client operations.

The ideal candidate has a Bachelor's in Chemical or Mechanical Engineering, 8–15+ years of industry experience, and a strong understanding of process engineering principles. The position offers a comprehensive benefits package and discretionary annual bonuses.

Qualifications

• 8–15+ years of experience in process engineering within industrial manufacturing environments.
• Successfully passed the Professional Engineer (PE) exam.
• Experience developing PFDs, P&IDs, and equipment specifications.

Responsibilities

• Lead process engineering design efforts for industrial manufacturing projects.
• Collaborate with multidisciplinary teams to deliver innovative process solutions.
• Mentor junior engineering staff and contribute to best practices.

Skills

Process engineering principles

Industrial systems

Process safety

Lean manufacturing methodologies

Excellent communication

Leadership skills

Collaboration skills

Education

Bachelor of Science in Chemical Engineering or Mechanical Engineering

Tools

AFT Fathom

AFT Arrow

HTRI

Job description

About LJC

LJC Design & Engineering (LJC) 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.

The Role

This role is ideal for a highly technical engineering leader with strong industrial process knowledge, sound engineering judgment, and an entrepreneurial mindset. You will lead process design efforts for complex industrial projects, collaborating closely with multidisciplinary teams to deliver safe, efficient, and innovative process solutions that align with our clients’ operational goals.

Specifics of the Role

• Lead process engineering design efforts for pet food, meat processing, and industrial manufacturing projects
• Develop project scopes and establish process design basis documentation
• Create and review Process Flow Diagrams (PFDs), material balances, and Piping & Instrumentation Diagrams (P&IDs)
• Specify process mechanical equipment and support instrumentation design activities
• Collaborate with discipline leads to ensure successful implementation of process designs across all project phases
• Interpret plant operating data and develop process solutions, often utilizing engineering assumptions and judgment in early project stages
• Ensure process systems are designed safely, efficiently, and in alignment with client operational requirements
• Utilize and enhance internal engineering tools and standards to support execution efficiency
• Perform process calculations and simulations using software such as AFT Fathom, AFT Arrow, HTRI, and similar process engineering tools
• Coordinate with vendors, clients, and internal teams to support equipment selection, process integration, and project execution
• Support construction, commissioning, startup, and troubleshooting activities as needed
• Mentor junior engineering staff and contribute to the development of engineering best practices

Requirements

• Bachelor of Science in Chemical Engineering or Mechanical Engineering from an ABET‑accredited university or college
• 8–15+ years of experience in process engineering within industrial manufacturing environments
• Successfully passed the Professional Engineer (PE) exam
• Strong understanding of process engineering principles, industrial systems, and process safety
• Experience developing PFDs, P&IDs, process calculations, and equipment specifications
• Familiarity with lean manufacturing or lean process methodologies
• Experience with field construction support, commissioning, and process startup activities preferred
• Strong engineering judgment and ability to design effectively with incomplete or evolving information
• Excellent communication, leadership, and collaboration skills
• Entrepreneurial mindset with the ability to thrive in a fast‑paced, design‑build environment

Benefits

• Discretionary annual bonus subject to company and individual performance
• Comprehensive benefits package including medical, dental and vision plans, 401(k), generous PTO and paid holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs and more

Compensation

Salary range for this position is determined by factors such as education, qualifications, skills, training, experience, certifications, internal equity, and location. Compensation decisions are made on a case‑by‑case basis.