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Louis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $39 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories. Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.

ABOUT COMPANY: 
 
A family-owned, world-class portfolio of brands. A global network that spans across more than 90 countries. Some 100,000 dedicated team members sharing common values. And more than 1.9 million vehicles taking our customers wherever they need to go. Any way you measure it, we've become a leader in the transportation service industry. How did we get here? By taking care of our customers, our communities and our employees – and staying true to our mission.
 
 
Working Here
 
 
Our people are the reason for our success. By living out our values each day and providing exceptional customer service, we’ve built a strong culture – one in which we bring honesty and integrity to all we do. We work hard, but never forget to have a little fun in the process. For more than 60 years, our values have been at the root of our success as a team and as individuals.
 
 
Our Values:
 
 
•	Our brands are the most valuable things we own. 
•	Personal honesty and integrity are the foundation of our success. 
•	Customer service is our way of life. 
•	Our company is a fun and friendly place where teamwork rules. 
•	We work hard... and we reward hard work. 
•	Great things happen when we listen... to our customers and to each other. 
•	We strengthen our communities, one neighborhood at a time. 
•	Our doors are open.

Enterprise Holdings Inc

Intern Software Engineer, Summer 2027

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Experience collaboration and continuous learning like never before amongst subject matter experts spanning across mechanical, electrical, plumbing, process, and automation engineering; architecture and lab planning; procurement, estimation, virtual design & construction, health & safety, and construction management. CRB proudly specializes in industries that inherently carry important social responsibility - we recognize our impact and influence in the communities we serve and pursue corporate responsibility through the lens of people, community, and planet.

CRB Group, Inc.

Mechanical Engineer Intern (Summer 2027)

Provide technical guidance, troubleshooting, and optimization for GPU clusters supporting AI training, inference, high-performance computing, and multi-node simulation workloads, with emphasis on availability, resiliency, scalability, energy efficiency, and cost management. Design, build, and maintain reusable tools, scripts, self-service capabilities, and automation workflows for infrastructure operations, including provisioning, configuration management, validation, capacity planning, monitoring, incident management, reporting, and recurring remediation.

Accenture Plc

AI Infrastructure Operations Engineer

We provide a broad benefits package with meaningful programs for eligible full-time employees that includes: Medical, dental, and vision plans along with flexible spending accounts, short-term and long-term disability benefits, critical illness, accident insurance and life insurance. We offer a comprehensive range of systems protection and electrical connections solutions across industry-leading brands that are recognized globally for quality, reliability and innovation.

YEAR

nVent Electric Plc

R&D Electrical Engineer

Relevant experience may include: AWS, Linux/Unix, Kubernetes, Docker, Terraform, Ansible, Git-based source control, Jenkins or comparable CI/CD platforms, Python, Bash, PowerShell, Kafka, SQL/Oracle, Control-M, Rundeck, Datadog or similar observability platforms, Jira and Confluence. What You will be Doing: The role will have involvement throughout project lifecycle - from gathering Requirements to Production deployment, and interaction with a wide variety of teams to generate and refine resources including cloud patterns, templates for CI/CD pipelines, application builds, automated testing, code scanning to production deployments.

London Stock Exchange Group Plc

Lead DevOps Engineer St. Louis, USA

Whether you've got deep experience in commercial real estate, skilled trades or technology, or you're looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. This role requires you to demonstrate expertise in one specialized craft area while maintaining multi-skilled capabilities across electrical, HVAC, plumbing, and central utility plant operations.

JLL is a financial and professional services firm specializing in commercial real estate services and investment management. We create value for companies and institutions that invest in and use real estate. With 60,000 employees across 280 corporate offices worldwide, we serve the local, regional and global real estate needs of corporates and investors in more than 80 countries. Our integrated services offering is grounded in expertise in all property types, a deep understanding of real estate markets and capital markets, and is coordinated and consistent across geographies.

Operating Engineer

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If you've been building your skills in backend development, object‑oriented programming, and mission‑driven engineering , and you're ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. April 16, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Mid-Level Backend Software Engineer

IRecruitee

Experience developing and maintaining A&A artifacts, including system security plans, control implementation statements, security assessment plans, POA&Ms, continuous-monitoring plans, or evidence packages. Develop and maintain A&A artifacts, including system security plans, control implementation statements, architecture diagrams, security assessment plans and procedures, POA&Ms, continuous-monitoring plans, and evidence packages.

Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.

Booz Allen Hamilton Inc.

Information Systems Security Engineer

Responsibilities include conducting application testing, configuring and demonstrating equipment, developing application-specific solutions, supporting customer site visits, and providing technical training to Sales, Service, distributors, and customers. The Applications Engineer – Continuous Inkjet (CIJ) provides pre-sales technical support, application testing, and post-sales troubleshooting for Diagraph’s continuous inkjet printing systems.

Since our founding more than 100 years ago, ITW has become one of the world&rsquo;s leading diversified manufacturers of specialized industrial equipment, consumables, and related service businesses.
ITW businesses serve local customers and markets around the globe, with a significant presence in developed as well as emerging markets. The company has operations in 57 countries that employ more than 50,000 women and men who adhere to the highest ethical standards. These talented individuals, many of whom have specialized engineering or scientific expertise, contribute to our global leadership in innovation. We are proud of our broad portfolio of more than 17,000 granted and pending patents.
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Application Engineer - Continuous Inkjet Technologies

PART_TIME

Louis, Missouri with more than 1,200 employees and nearing $2B in revenue, Alberici is a diversified construction company that partners with leading organizations throughout North America to build their most challenging and important projects. Combined with our 100+ years of experience, we provide construction solutions to the automotive, commercial, civil, energy, food & beverage, healthcare, heavy industrial, industrial process, and water industries.

Alberici Constructors Inc.

Senior Project Engineer (St. Louis-based; No Travel Required)

The final pay offered to a successful candidate will be based upon various factors unique to each individual that may include but are not limited to years of experience, industry knowledge, technical skills, education, qualifications, etc. The Process Engineer will be responsible for developing, evaluating, and improving manufacturing methods for complex metal manufacturing processes, such as casting, rolling, annealing, and slitting or fabrication of copper, brass, and other metal.

Chase Brass and Copper Co LLC

Process Engineer

ADAPTED_NOW

ICL Group Ltd. is a global leader in agriculture, food and industrial solutions, utilizing its unique mineral resources and extensive expertise to address key sustainability challenges related to food security and access to essential minerals. ICL’s global professional workforce is dedicated to expanding its growth engines and efficiently operating – both structurally and economically – while maintaining and optimizing its core operations.

ICL North America

Other duties include: Work with Operations Management to successfully complete design, execution and implementation of growth projects including processes, facilities, infrastructures and successful completion of new construction projects on time and within budget. Dyno Nobel is a global leader in commercial explosives, manufacturing and blasting technology, delivering innovative solutions to the mining, quarry, construction, and seismic industries.

Dyno Nobel Inc

Plant Process Engineer (New Plant Builds)

Work closely with Night Plant Supervisors, Maintenance Planner and Automation Engineer to address process flow concerns, minimizing down times; develop and implement regular system flow analysis programs; and prepare process flow materials and services contracts. Responsibilities include: Schedule, supervise and take part in process flow studies for all production systems; plan, design, coordinate and schedule process-flow improvement projects; and train and support plant personnel in process flow activities.

Sparrow Company

Cement Process Engineer

Crelate

Demonstrated experience with process design, plant layout, and equipment commissioning in a new or expanding facility; line startup experience (leading or participating) required; greenfield launch experience strongly preferred. Proficient in CAD software (AutoCAD, SolidWorks, or similar) for plant layout and process design; experience with process control systems, data analysis tools, and ERP/MES systems; proficient in Microsoft Office Suite.

King Technology, Inc

Sr. Manufacturing/Process Engineer

As a Process Engineer I, you'll play a key role in supporting manufacturing operations, improving processes, driving continuous improvement initiatives, and developing solutions that enhance safety, quality, productivity, and efficiency. This is an ideal opportunity for an early-career engineer looking to gain hands-on manufacturing experience while working alongside experienced engineering and operations leaders.

The Gund Company

Process Engineer I

Help manage the company's combustion systems by assisting maintenance managers with tuning and troubleshooting natural-gas-fired industrial burners, thermal oxidizers (recuperative and RTO), and combustion-air delivery systems to ensure safe gas firing and complete destruction of volatile organic compounds (VOCs). We are committed to this level of quality in both our product line and customer service, and focus our resources on investigating and implementing new coil coating technologies, developing unique coatings, ink and film systems, and designing multifaceted prints while reducing the cycle time to market.

AZZ incorporated (NYSE:AZZ) was established in 1956 and is headquartered in Fort Worth, TX. AZZ is a specialty electrical equipment manufacturer and provider of highly engineered services to the global markets of power generation, transmission, distribution and industrial as well as a leading provider of hot dip galvanizing services to the North American steel fabrication market. AZZ Energy is the leading provider of specialized products and services designed to support industrial, nuclear and electrical applications. Offering some of the most technologically advanced solutions and engineering resources developed from a legacy of proven, reliable product options, AZZ Energy is ideally positioned to meet the most challenging application-specific demands to ensure safe, productive facilities. AZZ Galvanizing provides hot dip galvanizing to the steel fabrication industry through facilities located throughout North America. As North America’s Largest Galvanizer, our vast network of facilities adequately positions us to serve a variety of industries and applications. Hot-dip galvanizing is a metallurgical process in which molten zinc is applied to a customer's material. The zinc bonding renders corrosion protection to fabricated steel for extended periods of up to 50 years.

AZZ Inc

ICL Group Ltd. is a global leader in agriculture, food and industrial solutions, utilizing its unique mineral resources and extensive expertise to address key sustainability challenges related to food security and access to essential minerals. ICL's global professional workforce is dedicated to expanding its growth engines and efficiently operating - both structurally and economically - while maintaining and optimizing its core operations.

ICL Group Ltd

Responsible as leading expert for Active Pharmaceutical Ingredients (APIs) and/or Oral Solid Dose (OSD) processing operations, regulatory guidance trends, evolving technology innovations, OEM supplier community partner, recognized industry expert through published/presented thought leadership and for launching and nurturing lifecycle client programs. Understanding and development of process construction documents including piping & instrument diagrams (P&IDs), equipment general arrangement drawings, piping plans inclusive of orthographic and isometric drawings, operator access platform and equipment support drawings, line lists, tie-in lists, installation specifications, bills of material (BOM), scopes of work, etc.

Barry-Wehmiller

Principal Process Engineer - API + OSD

We are seeking an experienced Global Projects Engineer to join our team at AFB International to lead significant capital investments across AFB facilities, with an initial focus on major projects at our manufacturing site in Aurora, Missouri. You will lead multiple, complex projects while partnering with Operations, Maintenance, Quality, EHS, Finance, Supply Chain, Corporate Engineering, plant leadership, consultants, contractors, and suppliers.

Process Engineer Jobs in Hazelwood, MO

Intern Software Engineer, Summer 2027 Enterprise Holdings Inc

Mechanical Engineer Intern (Summer 2027) CRB Group, Inc.

AI Infrastructure Operations Engineer Accenture Plc

R&D Electrical Engineer nVent Electric Plc

Lead DevOps Engineer St. Louis, USA London Stock Exchange Group Plc

Operating Engineer JLL

Mid-Level Backend Software Engineer Leidos

Information Systems Security Engineer Booz Allen Hamilton Inc.

Application Engineer - Continuous Inkjet Technologies ITW

Senior Project Engineer (St. Louis-based; No Travel Required) Alberici Constructors Inc.

Process Engineer Chase Brass and Copper Co LLC

Process Engineer ICL

Plant Process Engineer (New Plant Builds) Dyno Nobel Inc

Cement Process Engineer Sparrow Company

Sr. Manufacturing/Process Engineer King Technology, Inc

Process Engineer I The Gund Company

Process Engineer AZZ Inc

Process Engineer ICL Group Ltd

Principal Process Engineer - API + OSD Barry-Wehmiller

Global Project Engineer AFB International

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