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Louis for candidates moving from out of state• Career advancement potential within a rapidly growing digital transformation program• Mission‑critical work directly supporting a premier U.S. defense system• Stable, long‑term program funding and a collaborative engineering culture• Access to cutting‑edge technologies and opportunities for continuing education and certification• Strong work‑life balance supported by an established, high‑performing team. Requisition #: 1520 Job Tittle: Software Engineer III Location: St. Louis, MO Clearance: Secret Required Certification: CompTIA Security+ certification or a degree in Computer Science Why This Opportunity Stands Out .

YEAR

Agile Defense

Software Engineer III

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NeoLoad Script Development: Design, build, parameterize, correlate, and maintain reusable NeoLoad scripts, workloads, test data, and execution profiles for SAP Fiori, web applications, APIs, and supported enterprise interfaces. Performance Test Execution: Plan and execute baseline, load, stress, spike, endurance, and scalability tests; simulate realistic concurrent users, transaction mixes, and peak transportation workloads.

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>. 
 
 We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

CACI

NeoLoad Performance Test Engineer

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Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. This role is ideal for engineers who enjoy solving complex security challenges, working collaboratively across cyber and audit teams, and building secure, scalable SAP platforms.

SAP Security Engineer

Requisition #: 1520 Job Tittle: Software Engineer III Location: St. Louis, MO Clearance: Secret Required Certification: CompTIA Security+ certification or a degree in Computer Science . Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.

Software Engineer

Build effective working relationships with Corporate Project Managers, plant engineering and maintenance teams, Operations, Quality, EHS, vendors, contractors, suppliers, and integrators. If you are an experienced electrical, controls, or automation professional who enjoys turning complex projects into practical, reliable solutions, we invite you to apply and help build the future of AFB’s manufacturing operations.

AFB International

Global Controls Project Engineer

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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc

Sr Radar Optimization Engineer

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Perform both system-level and component-level design and integration tasks involving electrical and electro-mechanical component-level tasks - including determining block diagrams, detailed design, simulation, debug & test. Several factors can influence the pay scale, including but not limited to: Federal contract labor categories and contract wage rates, collective bargaining agreements, geographic location, business considerations, scope, and responsibilities of the position, local or other applicable market conditions, and internal equity.

DRS Technologies, headquartered in Arlington, Virginia, U.S.A., is a leading supplier of integrated products, services and support to military forces, intelligence agencies and prime contractors worldwide. Focused on defense technology, the Company develops, manufactures and supports a broad range of systems for mission critical and military sustainment requirements, as well as homeland security. The Company has been recognized as one of the fastest growing defense technology companies in the world and holds leading market positions in thermal imaging devices, combat display workstations, electronic sensor systems, power systems, rugged computer systems, air combat training systems, mission recorders, deployable flight incident recorders, environmental control systems, telecommunication systems, aircraft loaders, military trailers and shelters, and integrated logistics and support services. DRS's broad range of mission critical systems and sustainment solutions uniquely position the Company to support the ongoing superiority of the military's Current Force, as well as the modernization and emerging transformation initiatives of the Future Force. DRS responds to the needs of U.S. and allied military forces, as they engage in day-to-day expeditionary activities, by providing high-tech products and systems that improve the capabilities of many key platforms. The Company also provides a range of military support systems and services. DRS's products are deployed on a wide range of high-profile military platforms and on several platforms for non-military applications. Our sustainment products, such as environmental control systems, power generators, water and fuel distribution systems, chemical/biological decontamination systems and heavy equipment transport systems, are used to support military forces, humanitarian efforts and peacekeeping. We also provide security and asset protection systems and services, telecommunication and information technology services, training and logistics support services for all branches of the U.S. armed forces and certain international militaries, homeland security forces, and select government and intelligence agencies. DRS strives to provide quality products and services and stand behind them, to invest in research and development and new market opportunities, and to leverage existing core defense programs and business areas.

DRS Technologies

Electrical Engineer Intern

Engineers provide 24-hour response to machinery and system issues and oversee the operation, maintenance, and troubleshooting of all vessel equipment, including pumps, motors, engines, electrical and plumbing systems, water makers, marine safety devices, elevators, electronics, launches, rescue craft, and other critical systems. American Cruise Lines is seeking Engineers for our growing fleet sailing unique itineraries along inland and coastal waterways of the East Coast, Pacific Northwest, Columbia-Snake Rivers, Great Lakes, and Mississippi-Ohio-Cumberland-Tennessee-Arkansas Rivers.

American Cruise Lines, Inc.

Engineer - Unlicensed

FULL_TIME

OTHER

Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. Relocation assistance is available to eligible candidates who currently live more than 50 miles from the applicable work location in Annapolis Junction MD or Colorado Springs, CO.

MAXIMUS provides business services to help governments operate health and human services programs, mostly at the state and national levels. The company's health services segment offers outsourced program management and administrative services,

Maximus

Platform Infrastructure Engineer

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Freedom Technology Solutions Group is seeking a Machine Learning Engineer to develop, deploy, and optimize production AI/ML capabilities supporting mission-critical geospatial and intelligence systems. You will work at the intersection of software engineering, cloud architecture, and data science to build scalable machine learning pipelines capable of operating within secure government environments.

Freedom Technology Solutions Group

Machine Learning Engineer 727

Control Devices (or "CDI"), an HBM Holdings company headquartered in Greater St. Louis, is a leading designer and manufacturer of engineered flow control solutions in the compressed gas, compressed air, oil & gas, and liquid controls markets. Required Experience: Experience leading mechanical engineering projects including defining requirements, developing concepts and detailed designs, qualify the product through analysis and test, and support the design transfer to manufacturing.

Control Devices LLC

Product Engineer

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. Founded in 1990, WWT brings together strategy, deep technical expertise and world-class partnerships to help public and private sector organizations design, build and scale intelligent AI, digital, cybersecurity, cloud and infrastructure solutions.

World Wide Technology Inc

Senior Data Engineer HCMHR Analytics

Supervisor Software Engineer - NAIC3 - 1st shift

This position will help oversee safety and environmental activities; conduct safety and environmental audits and inspections; respond to incidents and near misses; coordinate regulatory reporting and hazardous waste activities; support training programs; maintain records; and assist with the development and continuous improvement of workplace safety, environmental, and sustainability programs. Work with Learning & Development Talent Manager to recommend/develop compliance training programs and materials to assist with safety compliance training, environmental training, hazard communication, and accident prevention programs.

Paulo Heat Treating, Metal Finishing and Brazing

Corporate Health, Safety, Environmental, and Sustainability Engineer

The Sales Engineer partners with our Sales Teams in various ways in a pre-sale's technical role, providing technical consultancy and specialized support to augment the sales effort, giving demonstrations and technical presentations for customers, partners and prospects showcasing A/V product solutions, explaining features/benefits to customers and designing and configuring products to meet specific customer needs. May have direct customer interaction through the life cycle of a sale, communicating with all levels of staff and customers, ranging from project managers to corporate executives.

Avi Systems

Audi-Visual Sales 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

Senior Quality Assurance Engineer

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. 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.

Clayco

VDC - Design Technology Engineer

The engineer will integrate AI security platforms with Microsoft Sentinel, security orchestration and automation technologies, threat intelligence platforms, endpoint and identity systems, email and cloud security platforms, and internal security workflows. The role will design and maintain evidence acquisition pipelines, agent orchestration frameworks, AI workflow integrations, observability capabilities, and governance controls that support effective and responsible use of AI in security operations.

U.S. Bancorp

Lead Infosecurity Engineer - AI Security Platform

As a Senior Anti-Tamper Engineer specializing in systems engineering and instruction, you will be supporting the Special Programs Division, DoD Anti-Tamper (AT) Executive Agent Field Program Office (FPO) (AFLCMC/WAG-AT) at Wright Patterson AFB, OH. Apply DoD systems engineering process, policy, and procedures in the acquisition, manufacturing, fielding, and sustainment, modernization and disposal of new, existing and future weapons systems and capabilities, with specific experience in weapon system Program Protection planning and anti-tamper methods.

Serco, Inc. is the North America division of Serco Group, plc, one of the world’s leading service companies. At Serco we serve every branch of the U.S. Military, federal, state and local governments, Canadian and provincial governments, as well as commercial customers. We are a leading provider of professional, technology, engineering, trades, and management services, and we support the public service areas of Defense, Citizen Services, and Transportation.
Headquartered in Herndon, Virginia, Serco has over 9,000 employees working at over 100 sites across the U.S. and Canada. Serco is a business where people and values matter. Our workplace culture is one that embraces diversity and fosters equity, respect, and belonging for every individual. Put simply, Serco is a place you can count on. We embody a holistic approach to wellbeing and offer our employees a suite of benefits that enable you to achieve your physical, emotional, financial, social, community and career goals.
Serco is a place where you can make a difference because every contribution matters. So while your place at Serco may vary depending on your role, we know you will find your place here. You are invited to come discover your place in our world.

Support Engineer Jobs in Berkeley, MO

Software Engineer III Agile Defense

NeoLoad Performance Test Engineer CACI

SAP Security Engineer CACI

Software Engineer Agile Defense

Global Controls Project Engineer AFB International

Sr Radar Optimization Engineer Leidos Holdings Inc

Electrical Engineer Intern DRS Technologies

Engineer - Unlicensed American Cruise Lines, Inc.

Platform Infrastructure Engineer Maximus

Machine Learning Engineer 727 Freedom Technology Solutions Group

Product Engineer Control Devices LLC

Senior Data Engineer HCMHR Analytics World Wide Technology Inc

Supervisor Software Engineer - NAIC3 - 1st shift World Wide Technology Inc

Corporate Health, Safety, Environmental, and Sustainability Engineer Paulo Heat Treating, Metal Finishing and Brazing

Audi-Visual Sales Engineer Avi Systems

Senior Cyber Security Engineer Cubic Corp

Senior Quality Assurance Engineer World Wide Technology Inc

VDC - Design Technology Engineer Clayco

Lead Infosecurity Engineer - AI Security Platform U.S. Bancorp

Senior Systems Engineer-WP-AFB Serco Group plc

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