Top 1089 Senior site reliability engineer, performance engineering Jobs in St. Louis, Mo

Associate Principal , Process Mechanical
Clayco —St. Louis, MO
- Full-time
- Construction site
- Bachelor of Science
- Residential
- Paid holidays
- Disability insurance
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Senior Mechanical Engineer
Clayco —St. Louis, MO
- Full-time
- Management
- Bachelor of Science
- Residential
- Paid holidays
- Disability insurance
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Electrical Engineering Manager -Energy & Utilities
Farnsworth Group —St. Louis, MO
- Online Application
- 5 years
- Bachelor of Science
- Quality control
- Health savings account
- Disability insurance
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Plumbing Project Engineer
Farnsworth Group —St. Louis, MO
- Online Application
- 8 years
- Mentoring
- Senior level
- Health savings account
- Disability insurance
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System Engineer (MBSE)
Agile Defense —St. Louis, MO
- Hybrid work
- Doctoral degree
- Computer Science
- 5 years
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Senior Mechanical Engineer - (QA/QC)
DOTec Professional Corporation —Saint Charles, MO
- $85,000 - $130,000 a year
- Full-time
- Hybrid work
- Office
- Residential
- Master's degree
- Paid holidays
- Health insurance
Quick Apply
1d
Senior Electrical Engineer
Clayco —St. Louis, MO
- Full-time
- Bachelor of Science
- Residential
- 8 years
- Paid holidays
- Disability insurance
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Electrical Engineer
Clayco —St. Louis, MO
- Full-time
- Bachelor of Science
- Mid-level
- Residential
- Paid holidays
- Disability insurance
Quick Apply
Electrical Engineering Manager - Healthcare
Farnsworth Group —St. Louis, MO
- Online Application
- Hospital
- 11+ years
- Clinic
- Health savings account
- Disability insurance
Quick Apply
Distribution Line Engineer
FindTalent —St. Louis, MO
- Full-time
- Hybrid work
- 5 years
- Bachelor of Science
- Continuous improvement
- Paid parental leave
- Health savings account
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Electrical Engineer
MilliporeSigma —St. Louis, MO
- $92,900 - $139,400 a year
- OSHA
- 5 years
- High school diploma or GED
- Health insurance
- Paid time off
5d
Engineer II
Astec Industries —Belleville, IL
- Microsoft Outlook
- Word processing
- Mid-level
Quick Apply
Mechanical Engineer - Mission Critical
Clayco —St. Louis, MO
- Full-time
- Bachelor of Science
- Mid-level
- Residential
- Paid holidays
- Disability insurance
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Mechanical Engineer
Facility Solutions Group —Fenton, MO
- From $80,000 a year
- Full-time
- Background check
- Construction site
- Mid-level
- Health savings account
- Health insurance
Quick Apply
2d
Substation Engineering Manager - Electrical Utilities
FindTalent —St. Louis, MO
- Full-time
- Construction experience
- Senior level
- Electrical Engineering
Quick Apply
Midstream Project Engineer - Natural Gas Facilities
Farnsworth Group —St. Louis, MO
- Online Application
- Microsoft Excel
- Construction site
- Computer literacy
- Health savings account
- Disability insurance
Quick Apply
Mechanical Engineer I
Clayco —St. Louis, MO
- Full-time
- Bachelor of Science
- Residential
- Communication skills
- Paid holidays
- Disability insurance
Quick Apply
Engineering Test and Validation Manager
Diode Dynamics Llc —Saint Charles, MO
- $90,000 - $120,000 a year
- Full-time
- 5 years
- Bachelor of Science
- Senior level
- Profit sharing
- Paid parental leave
1d
Licensed Electrical Engineer
Cordogan Clark —St. Louis, MO
- $100,000 - $125,000 a year
- Full-time
- Background check
- 5 years
- Mid-level
- Health savings account
- Paid holidays
Quick Apply
11d
Senior Systems Safety Engineer
Leonardo DRS —Bridgeton, MO
- $87,911 - $114,285 a year
- Full-time
- Hybrid work
- 5 years
- Engineering
- Team management
- Paid parental leave
- Health savings account

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Associate Principal , Process Mechanical

Clayco -
St. Louis, MO

Quick Apply

Job Details

Full-time

Benefits

Paid holidays
Disability insurance
Health insurance
Dental insurance
401(k)
Flexible spending account
Paid time off
Employee assistance program
Vision insurance
Life insurance

Qualifications

Industrial equipment design
Chemical process safety
Team leadership
Design of manufacturing processes
Bachelor's degree in engineering
Design engineering
Chemical process equipment sizing
Leading team collaboration initiatives
Project leadership
Professional Engineer
Manufacturing company experience
Piping diagrams drawing
Cross-functional communication

Full Job Description

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 (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. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, engineering, and construction.

The Role We Want You For

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.

The 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.

Some Things You Should Know

Our clients and projects are nationwide
No other builder can offer the collaborative design-build approach that Clayco does
We work on creative, complex, award-winning, high-profile jobs
The pace is fast

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 and more

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.

Quick Apply

Refine Your Search

senior site reliability engineer, performance engineering jobs in st. louis, mo

Associate Principal , Process Mechanical

Senior Mechanical Engineer

Electrical Engineering Manager -Energy & Utilities

Plumbing Project Engineer

System Engineer (MBSE)

Senior Mechanical Engineer - (QA/QC)

Senior Electrical Engineer

Electrical Engineer

Electrical Engineering Manager - Healthcare

Distribution Line Engineer

Electrical Engineer

Engineer II

Mechanical Engineer - Mission Critical

Mechanical Engineer

Substation Engineering Manager - Electrical Utilities

Midstream Project Engineer - Natural Gas Facilities

Mechanical Engineer I

Engineering Test and Validation Manager

Licensed Electrical Engineer

Senior Systems Safety Engineer

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