Senior AI Engineer MasterCardSenior AI EngineerO'fallon, MO$115,000–$184,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Master's degree with 2+ years of relevant experience, or Bachelor's degree with 5+ years of relevant experience, in Computer Science, Artificial Intelligence, Machine Learning, Data Science, Engineering, or a related field; equivalent practical experience will also be considered.
Senior Controls Engineer Hired by MatrixSenior Controls EngineerChesterfield, MOProject management skills and the ability to self-manage even complex projects; excellent time management and multitasking; flexibility in work environments and schedules; strong written and oral communication skills, essential to building and maintaining good work and customer relationships. Experience in the design of electrical schematics, including power distribution at the 600-480VAC level, control panels and associated NEC references, Ethernet networking and architecture, serial communications, etc.
Controls Engineer Hired by MatrixControls EngineerChesterfield, MOProject management skills and the ability to self-manage even complex projects; excellent time management and multitasking; flexibility in work environments and schedules; strong written and oral communication skills, essential to building and maintaining good work and customer relationships. Experience in the design of electrical schematics, including power distribution at the 600-480VAC level, control panels and associated NEC references, Ethernet networking and architecture, serial communications, etc.
NewLinux Systems Engineer Abile Group, Inc.Linux Systems EngineerSt. Louis, MissouriAbile Group, founded in July 2004 to support the Intelligence Community and its contractors across Enterprise Analytics, IT & Systems Engineering, and Program & Project Management, merged with Valiant Solutions in January 2026 - an established provider of cybersecurity technologies and services for Federal Agencies since 2005. With significant experience serving the Federal Government, we remain dedicated to our employees and clients and seek high‑performing professionals who excel at providing guidance, developing solutions, and delivering implementation support that blends industry best practices with client expertise and Abile’s broad technical capabilities.
Senior Mechanical Engineer ClaycoSenior Mechanical EngineerSt. Louis, MOWith $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. The Senior Mechanical Engineer will lead the mechanical design of projects, provide technical expertise, and ensure the successful delivery of engineering solutions for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-availability environments.
Mechanical Engineer I ClaycoMechanical Engineer ISt. Louis, MOWith $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.
Electrical Engineer ClaycoElectrical EngineerSt. Louis, MOWorking alongside a Senior Electrical Engineer on each project, this mid-level role is responsible for producing detailed electrical designs, performing analyses, and coordinating with multi-disciplinary teams to deliver infrastructure that meets demanding uptime and efficiency requirements in a fast-paced, design-build environment. 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.
Lead Software Engineer BiofireLead Software EngineerHazelwood, MO$117,000–$175,500 / yearIn addition, bioMérieux offers a competitive Total Rewards package that may include: · A choice of medical (including prescription), dental, and vision plans providing nationwide coverage and telemedicine options · Company-Provided Life and Accidental Death Insurance · Short and Long-Term Disability Insurance · Retirement Plan including a generous non-discretionary employer contribution and employer match. As a member of the R&D organization responsible for creating software for the development of innovative in vitro diagnostic solutions, the Senior Software Engineer contributes to the design and delivery of scalable, cloud-native software solutions by implementing modern software development practices, including microservices architecture, CI/CD, and infrastructure as code.
Regional Services Engineer Exclusive NetworksRegional Services EngineerAlton, ILWe are committed to the recruitment and hiring of individuals from diverse backgrounds and experiences, as we believe this strengthens our ability to develop superior solutions, make informed decisions, and better serve our valued customers. Exclusive Networks is the global cybersecurity go-to-market specialist that provides partners and end-customers with a wide range of services and product portfolios.
NewProcess Engineer CORTEX EPCM LLCProcess EngineerSaint Louis, MOCoordinate with various engineering groups, including controls and electrical fields, to assist in designing systems for projects. Experience in mass and energy balance, heat transfer, chemical equipment specifications and selections, fluid flow, and pressure drop calculations.
Cyber Security Engineer III System OneCyber Security Engineer IIISt. Louis, MO$135,000 / hourProvide cyber threat intelligence support, including the collection, fusion, analysis, creation, and distribution of threat intelligence from government entities, commercial feeds, open sources, and partner organizations. The Cyber Security Engineer will collect, analyze, and distribute threat intelligence from government sources, commercial feeds, open source reporting, and partner organizations to improve situational awareness of the cyber threat environment.
Systems Engineer Shiftcode Analytics, IncSystems EngineerMaryland Heights, MOKnowledgeable in basic network configuration (route switch, firewall, cabling, layer 2 heavy environments, data center and campus networking, routing protocols, subnetting, IP protocols, IOSXE, Cisco ASA/FTD). VMware ESXi, Windows Server (Active Directory, DHCP, File Share, Terminal Services), and Linux (RHEL/CentOS/Ubuntu).
Cloud Engineer eTeam Inc.Cloud EngineerEarth City, MO$70–$76.32 / hour6.Should be good Understanding and Hands on experience in creating and trouble shooting the issues related Azure Data Factory, VNET's, Route tables, NSG, Purview, Azure storage, Appication Contexts, AKV, Subscriptions. Location: Atlanta, GA 30328; Phoenix, AZ; Hopkins, MN 55343; San Francisco, CA 94111; Chicago, IL; Cincinnati, OH 45202; New York, NY 10036; Irving, TX 75038; Charlotte, NC 28202, Milwaukee, WI (Hybrid or can be remote).
Staff Instrumentation & Controls Engineer, Deployment CrusoeStaff Instrumentation & Controls Engineer, DeploymentWarrenton, Missouri$148,000–$170,000 / yearWe're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. We are seeking a proactive problem-solver who thrives in a fast-paced, hands-on environment and is passionate about bringing automated systems to life, working with others, and driving consistency and efficiencies across our startup through operational handover.
Process Automation Engineer, Manufacturing Engineering Thermo Fisher ScientificProcess Automation Engineer, Manufacturing EngineeringSaint Louis, MissouriYou will provide technical leadership for process control systems, support manufacturing equipment reliability, and lead automation initiatives that improve system performance, data visibility, compliance, and operational efficiency. Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related technical field is highly preferred.
NewCivil & Structural Engineer Intellectt INCCivil & Structural Engineerst louis, MOWe're looking for an experienced Civil & Structural Engineer with 8 10 years of experience to support industrial/CPG projects in St. Education: Bachelor's/Master's in Civil or Structural Engineering.
Advanced Cybersecurity Analytics Engineer III CACI International Inc.Advanced Cybersecurity Analytics Engineer IIISaint Louis, MO$75,200–$158,100 / yearPay 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. Working within a Fusion model, will collaborate with other teams within Focused Operations with the distinct task of proactively preventing a successful compromise and eradicating persistent adversaries already in the enterprise.
Senior Software Engineer MasterCardSenior Software EngineerO'fallon, MO$115,000–$184,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Azure Cloud Engineer CbAzure Cloud EngineerSt. Louis, Missouri2+ years experience with developing ETL pipelines in Azure using tools such as Azure Data factory, Event hubs, Event grid, Azure functions, 2+ years developing data engineering pipeline with Databricks or Spark. Azure Cloud engineer with experience integrating data from both internal and external data sources to build a data processing system.
Lead Software Engineer (Remote) Delan Associates, IncLead Software Engineer (Remote)O'Fallon, MORemoteIdeal Candidate: A senior-level engineer who combines strong full-stack Java development skills with hands-on experience building Agentic AI frameworks (MCP + LLMs), while also possessing the analytical and design skills needed to support enterprise data platforms and Qlik Sense environments. This role will support the installation, configuration, administration, and enhancement of a Qlik Sense environment while helping develop next-generation Agentic products and data solutions.