Lead Mechanical Engineer -- Energy & Industrial Group Sargent & LundyLead Mechanical Engineer -- Energy & Industrial GroupClayton, Missouri$118,023–$180,313 / yearFull time7+ years of experience in the design of mechanical engineering systems for non-commercial, heavy industrial plants (power, oil & gas, or chemical), with a focus on integrated, detailed system design for new plants, modifications, or replacements; Experience must include the selection of equipment, piping materials, control philosophy, and the preparation of performance sizing calculations and specifications. AI & Automation at Sargent & Lundy: In this role, we expect people to be willing or able to lead others who use modern tools: You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
Senior Release Train Engineer Reinventing Geospatial, Inc. (RGi)Senior Release Train EngineerSt. Louis, MORelease Train Engineer Qualifications: Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company.
NewSenior AI Platform Engineer - Agentic AI, Python, Databricks, LangGraph Rose InternationalSenior AI Platform Engineer - Agentic AI, Python, Databricks, LangGraphSaint Louis, Missouri$70–$75 / hourFull timeYou will help evolve our platform from Retrieval-Augmented Generation (RAG) applications to agentic AI systems that leverage reasoning, orchestration, tool use, and autonomous workflows. This hands-on role combines software development, platform architecture, AI strategy, and technical leadership to build scalable AI solutions and guide key technology decisions.
AI-Application Security Engineer StifelAI-Application Security EngineerSaint Louis, MissouriFull timeThe role requires strong hands-on technical depth in secure software development, application security testing, vulnerability management, and emerging AI security risks, including prompt injection, model abuse, insecure integrations, and data leakage. Implement, integrate, tune, and scale security tooling across application and AI environments, including runtime monitoring, governance controls, testing platforms, and posture management capabilities, with a focus on coverage, signal quality, and operational effectiveness.
DevOps Engineer Lee Hecht HarrisonDevOps EngineerSt. Louis, MO$105,000–$140,000 / yearAzure, AWS, Azure DevOps, Terraform, Kubernetes, Docker, CI/CD, DevSecOps, Cloud Security, Infrastructure as Code, PowerShell, Python, GitHub Actions, AKS, IAM, Entra ID, Splunk, Datadog, SRE, Platform Engineering. LHH Recruitment Solutions partners with leading employers throughout the Greater St. Louis market and is continuously seeking talented professionals for current and future opportunities.
Lead Mechanical Engineer BiofireLead Mechanical EngineerHazelwood, MO$120,000–$175,000 / 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. Design, model, create drawings, and release mechanical components using CAD/PDM tools (SolidWorks) including application of GD&T (in accordance with ASME Y14.5) and tolerance analysis to ensure robust performance, and adequate interfaces with other components/instruments.
Implementations Network Engineer III Leidos Holdings Inc.Implementations Network Engineer IIIShiloh, IL$73,450–$132,775 / yearKnowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers. The Implementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects supporting the Department of Defense networks.
Implementations/Activations Network Engineer II Leidos Holdings Inc.Implementations/Activations Network Engineer IIShiloh, IL$59,150–$106,925 / yearKnowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers. The Implementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects supporting the Department of Defense networks.
Roadway Engineer II Parsons Commercial Technology Group Inc.Roadway Engineer IIKcmo, MO$74,800–$130,900 / yearWe take special pride in projects and solutions that improve communities as well as people's quality of life by promoting economic growth, enhancing mobility, and increasing sustainability and resiliency. Assist in and increasingly lead the production and modification of design calculations, technical reports, engineering plans, and specifications for assigned projects.
Lead Structural Project Engineer BLUESCOPE STEEL LIMITEDLead Structural Project EngineerKcmo, MO5 years of experience designing and/or managing structural steel building projects in several of the following areas: Truss framed buildings and long span structures. The Lead Structural Project Engineer supports and engages in a collaborative work environment between internal company functions and builds trust among peers and customers by developing strong relationships.
Structural Engineer (SE - Civil/Truss) Illinois Tool WorksStructural Engineer (SE - Civil/Truss)Any City, MO$75,000–$120,000 / yearIn a high-volume production environment, this position enables scalable, accurate, and efficient design delivery, helping customers operate more productively while reinforcing Alpine's reputation as a trusted industry leader. Why This Role Matters: This Structural Engineer position is critical to Alpine's mission of delivering high-quality, reliable building component solutions that directly impact the safety, efficiency, and profitability of its customers.
Structural Design Engineer (Civil/Truss) Illinois Tool WorksStructural Design Engineer (Civil/Truss)Earth City, MO$70,000–$100,000 / yearWhy This Role Matters: This Structural Design Engineer role is essential because it sits at the intersection of engineering precision, construction efficiency, and customer success-directly impacting how safely and effectively buildings are designed and constructed. As a Structural Design Engineer at Alpine, you help translate complex engineering principles into practical, buildable solutions that optimize material use, improve productivity, and ensure structural integrity.
Central Region Landfill Engineer Waste ConnectionsCentral Region Landfill EngineerMaryland Heights, MOWe're looking for a Central Region Landfill Engineer who wants to make a direct impact on landfill operations, environmental compliance, capital projects, and long-term site development while partnering with leaders across multiple states. + Minimum of 5 years of engineering experience in landfill operations, heavy civil construction, mining, earthwork, environmental engineering, aggregates, or related industries.
Imaging Service Engineer I Tri-ImagingImaging Service Engineer ISt. Louis, MOFull timeEquipment & TechnologyThe Imaging Service Engineer I will work with a variety of biomedical and imaging service equipment and technology, including:Multimeters and oscilloscopesElectrical safety analyzersRadiation measurement devicesManufacturer diagnostic softwareComputers and CMMS softwareMicrosoft Office SuiteManufacturer service applicationsGeneral hand tools and power toolsLadders and lifting devicesMaterial handling equipmentPersonal Protective Equipment (PPE)Electrostatic Discharge (ESD) protection equipmentPhysical RequirementsAbility to sit, stand, walk, bend, kneel, climb, reach, and work in confined spaces for extended periods. The ISE I provides both on-site and remote technical support to hospitals and healthcare facilities within an assigned territory while developing technical expertise through hands-on experience, training, and mentorship from senior engineersWhat You'll DoCustomer Service & CommunicationRespond promptly to service requests from clinical departments and customers to evaluate and resolve equipment issues.
Structural Engineer CDG Engineers, Inc.Structural EngineerSaint Louis, MOCDG Engineers, Inc. is a full-service, multi-discipline professional services organization based in St Louis, MO, with capabilities in civil, structural, electrical, and mechanical engineering, as well as architecture. You will be responsible for designing and analyzing structural components for a wide variety of diverse projects within heavy industrial, utility, and infrastructure industries, ensuring they meet safety and performance requirements.
Lead Site Reliability Engineer-2 MasterCardLead Site Reliability Engineer-2O'fallon, MO$122,000–$207,000 / 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. The goal of every Business Operations team is to engage early in the development lifecycle to be more proactive and upfront in the development process, and to proactively manage production and change activities to maximize customer experience and increase the overall value of supported applications.
Preconstruction Engineer II Holland Construction ServicesPreconstruction Engineer IISwansea, ILFull timePrepares project clarifications and budget assumptions for assigned scopes of Develops and improves proficiency with relevant construction software utilized by Attends and assists with post-mortem meetings as Assists in identifying new and qualified subcontractors and material suppliers for HCS Subcontractor Assists with due diligence issues including permits, financing, and regulatory approvals as Attends client meetings as needed and observes to understand client interaction and needs, as well as acting as another set of eyes and ears for critical information. Assists in identifying cost for scope of work reductions and value engineering Assists in communicating sub-bid results to subcontractor market as requests Assists Project Managers with large scope of work change WHAT YOU'LL NEEDTypically requires an associate degree or bachelor's degree in construction management, Civil Engineering or related degree and 3-6 years of experience OR equivalent combination of education and/or experience.
Cyber Security Engineer - NSS Tools CACICyber Security Engineer - NSS ToolsSaint Louis, Missouri7+ years of related experience in SEIM, network operations, network engineering, leading technology teams, leading operation cybersecurity teams, or a combination thereof. 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.
Network/SATCOM Engineer CACINetwork/SATCOM EngineerSaint Louis, MissouriTeam CACI has an exciting and challenging opportunity available for a Network Engineer supporting an Intelligence Community customer’s wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains. 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.
Lead Firewall Engineer CACILead Firewall EngineerArnold, MissouriPay 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. Experience in reviewing, validating, and implementing requirements within enterprise Change Requests (CRQs) and determining impacts to network and cyber operations across the enterprise.