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We are hiring a Junior DevOps Engineer to support CI/CD pipelines, cloud infrastructure, and automation initiatives. Familiarity with Git, Docker, and CI/CD tools (GitHub Actions, Jenkins, or Azure DevOps).

The Giant Bullseye

Job Title: Junior DevOps Engineer

This role partners closely with InfoSec, QA, DevOps, and engineering teams to improve security posture using automation and GenAI-driven solutions. Seeking a Java / Node.js Engineer focused on application security remediation, technical debt reduction, and automated vulnerability fixes across multiple platforms.

Application Security Engineer – Java / Node.js

Required skills: Bachelor’s Degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience. Hands-on experience administering Nutanix HCI environments, including AHV, Prism Central, Prism Element, virtual machine lifecycle management, storage, networking, and cluster operations.

YEAR

FST Technical Services was founded in 1984 to serve the needs of the growing, worldwide Semiconductor/Microelectronics and Life Sciences industries. We began as an independent interface between our clients and their subcontractors to establish build clean installation methods that satisfied internal specifications and conformed to regulatory requirements.
 
FST’s core expertise is in developing technical and logistical solutions for complex needs by continually investing in the most advanced equipment and training to meet the needs of the rapidly changing markets it serves. Today, our business has expanded to additional markets, including Automation, Manufacturing, Data/IT Centers, Energy/Advanced Technology and Technology/Research Laboratories.
 
Our experienced FST team serves as your trusted partner for QA/QC Services, Equipment Services, Staffing Solutions, Project Management, Analytical Testing and Inspections – virtually anything you might need throughout your project lifecycle. FST professionals also provide project consultation and employee training. We guide our customers throughout each project phase to ensure full compliance.
 
With peerless performance and proven results, FST is with you all the way.

D2 Technical Services

Linux Systems Engineer

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D2 is growing, and we’re looking for a Senior Endpoint Security Engineer to join our team—supporting the National Geospatial-Intelligence Agency (NGA) in delivering top-tier cyber defense and endpoint protection solutions. It’s a great opportunity to work alongside talented professionals, leverage cutting-edge technologies, and elevate your cybersecurity career in a high-visibility, high-impact environment.

Senior Endpoint Security Engineer

Perform day-to-day maintenance, and specific scheduled maintenance activities that result from manufacturers recommended service intervals, alerts, bulletins, available patches, and updates according to agency approved change management processes. In this role you will have the opportunity to contribute to one or more areas including (but not limited to) data ingest, data normalization, SIEM management, Linux/Windows host administration, virtual machine (VM) management, and cloud asset management.

Linux SIEM System Engineer

Assist in designing, building, and maintaining OpenShift clusters - control plane, worker nodes, networking, storage, and Operators - ensuring high availability, performance, and capacity for production workloads. Through its Advanced Technology Center (ATC)-a collaborative ecosystem featuring state-of-the-art hardware and software-WWT enables clients and partners to conceptualize, test and validate innovative technology and then deploy solutions at scale using its global integration and distribution capabilities.

World Wide Technology Inc

Kubernetes Engineer

Working closely with operations, maintenance, and project teams, you will apply your technical skills to solve problems, support turnarounds, and deliver instrumentation projects that make a real impact at Phillips 66. Identify, analyze, and help resolve instrumentation and analyzer problems, using data and root cause methods to recommend and implement improvements.

Phillips 66 is a diversified energy manufacturing and logistics company. With a portfolio of Midstream, Chemicals, Refining, and Marketing and Specialties businesses, the company processes, transports, stores and markets fuels and products globally. Phillips 66 Partners, the company's master limited partnership, is an integral asset in the portfolio. Headquartered in Houston, the company has 14,000 employees committed to safety and operating excellence. Phillips 66 had $50 billion of assets as of June 30, 2016.

Phillips 66

Engineer I, Instrument, Wood River Refinery

Create detailed engineering drawings, guide major equipment rebuilds, and deliver small- to medium-scale projects in collaboration with inspection, operations, maintenance, and project teams. Refinery facilities include crude distilling, naphtha reforming, fluid catalytic cracking, alkylation, hydrocracking, hydrodesulfurization and delayed coking units.

Sr Engineer, Fixed Equipment, Wood River Refinery

As part of Ensign-Bickford Industries, Inc. (EBI) , a privately-owned high-technology conglomerate, AFB International operates across multiple global locations, including the United States (global headquarters), Europe, Latin America, Mexico, Australia, and China. Our specialized palatants improve the flavor and nutritional value of pet foods, treats, and supplements, ensuring pets receive the essential nutrients they need.

Ensign-Bickford Industries

Automation Controls Engineer

If a current Reliability Engineer opening doesn't align with your career goals or preferred location, we encourage you to apply to this "Future Talent Pipeline" position instead and stay connected for upcoming roles. What Makes You Stand Out: 8 or more years of relevant working experience in reliability, rotating equipment, fixed equipment, mechanical, maintenance, or a similar engineering role in a refinery.

Future Talent Pipeline - Reliability Engineer

Company Details: When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people's lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. The successful candidate will lead cybersecurity compliance activities and work closely with customer security personnel, system engineers, and program leadership to help obtain and maintain an Authority to Operate (ATO).

2018 America's Best Midsize Employers, by Forbes

Cubic Corporation is the parent company of three major businesses, Cubic Transportation Systems (CTS) and Cubic Mission & Performance Solutions (CMPS). 

CTS is a leading integrator of payment and information technology and services for intelligent travel solutions worldwide. 

CMPS is a leading provider of realistic combat training systems, secure communications and networking, and highly specialized support services for military and security forces of the U.S. and allied nations. CMPS also provides networked Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance (C4ISR) capabilities for defense, intelligence, security, and commercial missions.

Cubic Corp

Senior Cyber Security Engineer

Principle Duties and Responsibilities: Essential Functions: For manufacturing process to which individual is assigned: provide and maintain detailed work instructions, drive quality improvements, efficiency improvements, material presentation enhancements, manage the daily work plan, provide metrics for quality and schedule performance, and coordinate engineering and tooling changes as required. Gulfstream Aerospace Corporation, a wholly-owned subsidiary of General Dynamics (NYSE: GD), designs, develops, manufactures, markets, services and supports the world''s most technologically-advanced business jet aircraft.

Gulfstream Aerospace Corporation

Operations Engineer III

Heavy Equipment Mechanic responsibilities include, but are not limited to: Conduct fuel, electrical, mechanical, hydraulic diagnostics and troubleshooting on a wide range of mobile equipment. Although most don't realize it, our products are used to build the homes, roads, and bridges that people throughout the Midwest use every day of their lives!

Central Stone Co

Heavy Equipment Mechanic

ROLE SUMMARY: The Utilities Process Operator is a critical role responsible for the safe and efficient operation and maintenance of Brewery-wide industrial utility systems such as steam generation, ammonia and glycol refrigeration, industrial HVAC and dehumidification, compressed air, process and potable water treatment, wastewater pre-treatment, and CO2 processing. From our longstanding efforts to support American farmers, military, veterans, and first responders, to emergency drinking water donations and responsible drinking programs, we are guided by our commitment to the communities we call home and the 65,000 hardworking Americans who bring our beer to life.

HOUR

Anheuser-Busch InBev

Utility Process Operator

ADAPTED_NOW

With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. Candidates with a background in field engineering or project engineering bring an understanding of how subcontractors operate, where scope gaps create cost exposure, and how trade sequencing affects a bid.

Clayco

Procurement Engineer

Operates within the organization's formal and informal structures, builds allies and relationships across departments, uses allies to build consensus and create results, is appropriately diplomatic, understands others' roles and perspectives, can sell projects and ideas across the organization. Responsibilities range from pre-construction project review, technical assistance with regards to quality issues involving submittals and RFI’s, quality control management and compliance in the region, technical assistance with regards to project quality issues, and coordination and communication with project teams and GC’s.

Sr Quality Control Engineer

Quality Control Engineer

You will work directly with business and technology teams to design, build, and deploy AI agents that transform how healthcare operations function, while enabling teams to become AI-native and self-sufficient . We are hiring Forward Deployed AI Engineers (FDEs) to partner with one of the largest healthcare payers in the U.S. to drive AI-led transformation across core business workflows .

Forward Deployed AI Engineer – Healthcare (Agentic AI )

This position requires access to ITAR controlled technical data, and as such, employment will be contingent upon the candidate's ability to access ITAR controlled technical data pursuant to an export license approved by the Directorate of Defense Trade Controls. Focus: The Electrical Engineer Co-Op supports maintenance and production with reliability, design, and maintenance of instrumentation and electrical systems to ensure safe and efficient operations.

Operating Engineer Jobs in Saint Louis, MO

Job Title: Junior DevOps Engineer The Giant Bullseye

Application Security Engineer – Java / Node.js The Giant Bullseye

Linux Systems Engineer D2 Technical Services

Senior Endpoint Security Engineer D2 Technical Services

Linux SIEM System Engineer D2 Technical Services

Kubernetes Engineer World Wide Technology Inc

Engineer I, Instrument, Wood River Refinery Phillips 66

Sr Engineer, Fixed Equipment, Wood River Refinery Phillips 66

Automation Controls Engineer Ensign-Bickford Industries

Future Talent Pipeline - Reliability Engineer Phillips 66

Senior Cyber Security Engineer Cubic Corp

Operations Engineer III Gulfstream Aerospace Corporation

Heavy Equipment Mechanic Central Stone Co

Utility Process Operator Anheuser-Busch InBev

Procurement Engineer Clayco

Sr Quality Control Engineer Clayco

Quality Control Engineer Clayco

Forward Deployed AI Engineer – Healthcare (Agentic AI ) The Giant Bullseye

Winchester Electrical Engineer 6-Month Co-Op - 2027 Olin Corporation

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