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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

Mechanical Engineer I

PART_TIME

FEED

Louis, Missouri with more than 1,200 employees and $1.5B 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.

Project Engineer Intern

Co‑op participants contribute to meaningful projects and day‑to‑day business activities while developing professional skills, technical knowledge, and an understanding of real‑world organizational operations. Pre-approval from the Nidec Talent Acquisition team is required before any external candidate can be submitted and such candidate must be submitted to the Nidec Talent Acquisition team.

Nidec Motor Corporation

Quality Engineer Co-op

Who We Are: As the largest global pure play sustainability consultancy, we partner with the world's leading organizations, creating innovative solutions to sustainability challenges and unlocking commercial opportunities that meet the needs of today while preserving opportunity for future generations. Join ERM as an experienced Senior Consultant, Field Lead Archaeologist (Senior Consultant, Archaeologist) and lead meaningful fieldwork and regulatory analysis across the US, directly informing responsible development and environmental decision-making.

YEAR

ERM International Group Ltd

Senior Consultant, Field Lead Archaeologist

GBA Companies is welcoming Civil Engineering students to join us this upcoming summer for an internship in our Transportation market focusing on projects within our Traffic Group. From birthdays and BBQs to protecting the environment and helping families in need, GBA employees celebrate and support one another and the communities where we live, work and play.

GBA Companies

Civil Engineer Intern - Traffic

clearcompany

All Keeley Brands (Keeley Construction Group, Keeley Properties, Keeley Restoration, Keeley Companies) do not accept unsolicited resumes from search firms, headhunters, or agencies. Minimum Qualifications: Bachelor's Degree in Engineering, Construction Management, related field, or equivalent work experience.

Keeley Companies Inc

Project Engineer Industrial

Collaborate with cross-functional teams, including product owners, data architects, and quality engineers, to translate complex business and data requirements into technical deliverables. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.

UnitedHealth Group is a health care and well-being company that’s dedicated to improving the health outcomes of millions worldwide. We are comprised of two distinct and complementary businesses, UnitedHealthcare and Optum, working to build a better health system for all. Here, your contributions matter as they will help transform health care for years to come. Make an impact with a diverse team that shares your passion for helping others.

What we do

Gain insights on how we work to help people live healthier lives and help make the health system work better for everyone by watching this video.

<a href="https://www.youtube.com/watch?v=5PbNyi2IDkY">https://www.youtube.com/watch?v=5PbNyi2IDkY</a> 

Caring. Connecting. Growing together. 

Being a part of UnitedHealth Group means working to improve health outcomes for everyone, including yourself. Here is how:

• Caring. Your total health and well-being are important to us. Whatever matters most to you — we have resources to help you be your best at work and at home. The benefits range from free Peloton courses to financial counseling. <a href="https://careers.unitedhealthgroup.com/culture/what-we-offer/">Learn more about what we offer.</a> 

• Connecting. We recognize our collective power to make an impact across our communities because we believe the health of any society is measured by the overall health of its people. <a href="https://careers.unitedhealthgroup.com/culture/">Learn more about our culture.</a> 

• Growing together. UnitedHealth Group is full of inspiring career stories, and we offer a lifetime of opportunities. <a href="https://careers.unitedhealthgroup.com/career-areas/">Discover all the ways you can learn, grow and develop.</a>

UnitedHealth Group Inc.

Software Engineer

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Our problems are complex from building AI-powered analytics that are constantly evolving, to challenges that define modern finance, giving engineers the opportunity to stretch their craft and shape solutions that matter. With over 40,000 customers and 400,000 end users across approximately 190 markets, we are an essential partner to the global financial community and redefining the future of data in financial services.

London Stock Exchange Group Plc

Lead Software Engineer - St. Louis Office

This position is responsible for designing, implementing, securing, and optimizing network architecture while providing technical leadership, infrastructure strategy, and advanced support for organizational systems and services. Proficient Computer Skills In: Microsoft Excel, Outlook, PowerPoint, Publisher, Word, Database Management Software, Social Media Platforms, Networking Hardware and Software.

Caritas Family Solutions

Network Engineer II

Bachelor's degree in Electrical Engineering or other related technical fields with at least 2 years of demonstrated experience in a pre-and post-sales technical support position; or High School Diploma/GED with at least 6 years of demonstrated experience in a pre-and post-sales technical support position. Its battle-proven StreamCaster family of MANET radios and proprietary MN-MIMO waveform provides the vital communications link for defense, law enforcement and public safety agencies around the world, and in the toughest operational environments.

Motorola Solutions Inc

Sales Engineer - Department of War (DoW) - United States (Remote)

Join our firm for an internship journey where you'll dive into real-world project work, learn from industry leaders and fully immerse yourself in the CRB employee experience. You'll have the chance to work hands-on with cutting-edge projects, collaborate with peers and industry leaders, and contribute your unique perspective to spark meaningful change.

CRB Group, Inc.

Structural Engineer Intern (Summer 2027)

These are the core capabilities and experiences essential to make an impact: Required Qualifications: Bachelor of Science degree (completed and verified prior to start) from an accredited institution AND 5 years of experience in Quality Management Systems (QMS) or equivalent regulated environment. Through Acera Surgical and the Restrata product, the team advances evidence‑based wound care technologies that support healing across multiple surgical specialties, helping frontline healthcare providers deliver safer, more effective care.

Solventum Corp

Quality Systems Engineer

We're growing a team of engineers who want to work at the center of that shift: designing and building autonomous, multi-agent systems powered by Anthropic's Claude models for some of the world's largest organizations. Design and build Generative AI and agentic solutions using Claude, including agent orchestration, tool integration, and Model Context Protocol (MCP) based integrations, using the Claude Agent SDK and Claude Cowork.

Deloitte

Agentic AI Engineer - Anthropic/Claude

Required: 2+ years of professional experience in data science, machine learning, or Generative AI, including developing or prototyping LLM applications using LLM APIs, prompt engineering, RAG, or vector retrieval. AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure.

AI & Data Science Engineer II

As part of our recruitment process, Hitachi Energy uses digital and automated tools, including Al-supported solutions, to assist with activities such as application screening, job matching, and interview scheduling. Whether you're based in Nashville, TN, Earth City, MO, Crystal Springs, MS, or prefer to work remotely, you'll be at the forefront of innovation, delivering top-notch technical solutions and support.

Hitachi Ltd

Senior Transformer Engineer

A successful candidate would possess these skills:Ability to work independently and collaborate as part of a teamEffective written and verbal communication skillsMeticulous attention to detail and quality of work productAbility to build and sustain professional relationshipsAbility to lead projects or workstreamsAbility to manage and prioritize multiple tasks in a fast-paced and dynamic environmentStrong interpersonal skills and professional demeanorAbility to meet deadlinesAbility to provide clear guidance to othersThe teamHC Forward is a dedicated innovation partner accelerating the future of Human Capital by building market-aligned products, platforms, and services that apply AI, data, and engineering to modernize HR experiences and outcomes. Recruiting for this role ends on 10/30/2026.Work you'll doThe Data Engineer Consultant will support data architecture and engineering delivery that enables artificial intelligence (AI), machine learning (ML), and generative AI (GenAI) solutions, ensuring data is trusted, secure, observable, and scalable from ingestion through consumption.

Data Engineer II

General Responsibilities: Supervise the day-to-day activities of a team of technical field employees such as Engineering Technicians in the performance of services provided by an engineering consulting project office. Regularly communicate with clients to provide up to date information in regard to the company's ability to meet expected project timelines, client needs for projects and project status.

Terracon

Materials Field Supervisor

Working in close cross functional collaboration with R&D, Marketing, Manufacturing/Supply Chain/QA, vigilance and regional (local) teams, this role ensures service strategy definition for the Franchise, operational execution, technical proactivity, and continuous improvement across the product lifecycle to optimize field support and operational excellence, and therefore reach business growth expectations and enhance customer experience. This role combines complaint handling process, investigation management, technical support excellence including coaching, and contributing to service projects to foster cross-functional alignment, accelerate customer issue resolution, enhance long-term product performance in the field and respond to strategic priorities while addressing regional market dynamics.

BioMerieux

Global Clinical System Engineer II

FULL_TIME

Apogee has an exciting new opportunity for an DevOps Engineer Support to provide support for the Executive Airlift Communications Network (EACN) support task order, which provides Command, Control, Communications (C3) services for multiple critical U.S. Government missions via multiple Air to Global Information Grid (GIG) Gateways (A2G2’s) supported by a Systems Integration Lab (SIL). Responsibilities: Support the EACN Information Assurance Vulnerability Management (IAVM) program by providing EACN Government Engineers with technical support, including vulnerability order applicability to EACN, mitigation actions, network architecture engineering, and supporting documentation.

Apogee Engineering, LLC

DevOps Engineer Support

[AW]-iCims

Execute full lifecycle systems engineering activities, including: Requirements decomposition & traceability System architecture modeling Interface definition & management Operational and environments analysis Specification development Trade studies and technical assessments Risk identification & mitigation Verification, validation, and test planning Certification planning & execution Support technical reviews, documentation, and customer-facing deliverables. Responsibilities: Include: Support cross-functional engineering teams in developing advanced autonomous and complex systems aligned with program milestones and customer expectations.

Field Engineer Jobs in Saint Louis, MO

Mechanical Engineer I Clayco

Project Engineer Intern Alberici Constructors Inc.

Quality Engineer Co-op Nidec Motor Corporation

Senior Consultant, Field Lead Archaeologist ERM International Group Ltd

Civil Engineer Intern - Traffic GBA Companies

Project Engineer Industrial Keeley Companies Inc

Software Engineer UnitedHealth Group Inc.

Lead Software Engineer - St. Louis Office London Stock Exchange Group Plc

Network Engineer II Caritas Family Solutions

Sales Engineer - Department of War (DoW) - United States (Remote) Motorola Solutions Inc

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

Quality Systems Engineer Solventum Corp

Agentic AI Engineer - Anthropic/Claude Deloitte

AI & Data Science Engineer II Deloitte

Senior Transformer Engineer Hitachi Ltd

Data Engineer II Deloitte

Materials Field Supervisor Terracon

Global Clinical System Engineer II BioMerieux

DevOps Engineer Support Apogee Engineering, LLC

Systems Engineer Level 4 - 164509 Zp Group Llc

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