AI Engineer
$28kARCO a Family of Construction Companies
ABOUT YOU Are you energized by the opportunity to build and scale AI solutions that create real business impact? Do you thrive at the intersection of software engineering, machine learning, and emerging generative AI technologies? If so, we have an exciting opportunity for you at ARCO, a Family of Construction Companies. We are looking for an AI Technical Engineer to help design, develop, and deploy enterprise-grade AI and large language model (LLM) solutions across our organization. This individual will play a key role in advancing our AI strategy by building intelligent applications, enhancing operational efficiency, and identifying innovative ways to leverage AI throughout the business.
WHAT WE CAN OFFER YOU We are dedicated to the well-being of our associates and are proud to be consistently recognized as a Best Place to Work. Our compensation and benefits package not only supports our associates and their families but benefits local communities and communities around the world.
A DAY IN THE LIFE
MAKE YOUR MOVE We are proud to be one of the fastest-growing, privately-owned companies in America, celebrating over 30 years of experience as design-build experts. We have completed over 6,550 design-build projects nationwide. We ranked #6 on ENR's Design-Build Firms list and #29 on ENR's Top 400 Contractors list of 2025. Most importantly, our clients like us, trust us and want to do business with us. We are looking for people with the same enthusiasm, passion, and respect for the hard work that brought us to where we are today. Are you a person that can make a difference at ARCO? If the answer is, "Yes!" we look forward to meeting you. ARCO does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies without pre-approval from ARCO's Human Resource team. Pre-approval is required before any external candidate can be submitted. ARCO will not be responsible for fees related to unsolicited resumes and for candidates who are sent directly to our hiring managers. #LI-KL1 #LI-Onsite
LEGAL DISCLAIMER EOE, including disability/vets
WHAT WE CAN OFFER YOU We are dedicated to the well-being of our associates and are proud to be consistently recognized as a Best Place to Work. Our compensation and benefits package not only supports our associates and their families but benefits local communities and communities around the world.
- Industry-leading performance-based bonus program
- ESOP
- Traditional and Roth 401k
- Tuition reimbursement for associates
- Scholarship for associates' children up to $28,000 per child
- 1-month paid sabbatical after every five years of employment, plus $5,000 for travel
- 1-week paid volunteer leave each year
- 100% charitable match
- Medical, dental, and vision insurance coverage
- 100% paid 12-week maternity leave
A DAY IN THE LIFE
- Design, build, and deploy AI-driven applications and services
- Develop generative AI solutions using large language models (LLMs) via Azure OpenAI Service
- Implement use cases such as chatbots, copilots, document summarization, knowledge search, and workflow automation
- Apply prompt engineering, grounding, and retrieval-augmented generation (RAG) techniques
- Evaluate LLM outputs for accuracy, safety, and performance
- Build, train, and evaluate models using Azure Machine Learning
- Work with structured and unstructured data to support AI and LLM-based solutions
- Perform data preprocessing, feature engineering, and model tuning
- Manage model lifecycle, versioning, and prompt iteration strategies
- Monitor model and LLM performance, usage, and cost; optimize as needed
- Implement CI/CD pipelines using Azure DevOps or GitHub
- Document models, prompts, and system architecture clearly
- Translate business needs into scalable technical solutions
- Work with cross-functional teams to identify AI and LLM opportunities
- Deploy and manage AI/LLM solutions in Azure environments
- Build scalable applications using Azure Functions, Azure App Service, or containers
- Integrate AI capabilities into enterprise systems and Microsoft tools (e.g., Teams, SharePoint, Power Platform)
- Develop backend services and APIs to support AI/LLM applications
- Bachelor's degree in Computer Science, Engineering, or related field
- 2-5+ years of experience in software development, AI, or machine learning
- Strong programming skills in Python / Microsoft full-stack development
- Experience building APIs and backend services
- Hands-on experience or strong familiarity with large language models (LLMs) and generative AI concepts
- Experience working in a cloud environment (Azure preferred)
- Experience building applications using Azure OpenAI Service
- Knowledge of LLM techniques such as prompt engineering, RAG, embeddings, and vector search (e.g., Azure AI Search)
- Experience integrating AI into Microsoft ecosystem tools (Teams, SharePoint, Power Platform)
- Familiarity with containerization (Docker) and orchestration (Kubernetes)
- Experience with secure, enterprise-grade AI deployment
MAKE YOUR MOVE We are proud to be one of the fastest-growing, privately-owned companies in America, celebrating over 30 years of experience as design-build experts. We have completed over 6,550 design-build projects nationwide. We ranked #6 on ENR's Design-Build Firms list and #29 on ENR's Top 400 Contractors list of 2025. Most importantly, our clients like us, trust us and want to do business with us. We are looking for people with the same enthusiasm, passion, and respect for the hard work that brought us to where we are today. Are you a person that can make a difference at ARCO? If the answer is, "Yes!" we look forward to meeting you. ARCO does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies without pre-approval from ARCO's Human Resource team. Pre-approval is required before any external candidate can be submitted. ARCO will not be responsible for fees related to unsolicited resumes and for candidates who are sent directly to our hiring managers. #LI-KL1 #LI-Onsite
LEGAL DISCLAIMER EOE, including disability/vets
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the AI Engineer in Saint Louis, MO vacancy
- ...Data Science, Artificial Intelligence or a related field or Bachelor's with minimum 5 years experience. • Proven experience as an AI Engineer, Machine Learning Engineer, or similar role. • Experience in developing and deploying machine learning models and AI systems....Suggested
- ...Role: AI Engineer (Agentic AI Experience) Location: St Louis, MO Remote- OK ( local preferred) Must Have- Applied Agentic AI engineering experience : evidence of building Agentic workflows - ideally delivered into a real project- Please share for all submissions...SuggestedLocal areaRemote work
- ...AI Engineer Design, develop, and deploy AI and machine learning models for real-world applications. Build and implement agentic AI workflows and multi-agent systems for production use cases. Contribute to architecture and design of scalable AI solutions and intelligent...Suggested
- Equifax is seeking a visionary AI engineer to lead our technology transformation initiative. In this role, you will lead a talented team in architecting and deploying cutting‑edge, cloud‑native solutions for a large enterprise. You will be at the forefront of modern development...SuggestedWork at office3 days per week
- Role Overview We’re looking for a hands‑on AI Engineer to ship on our platform: building agent harnesses, writing the tools those agents call, and owning the reliability and evaluation of what goes to production. This is not a research role. You’ll prototype, ship, monitor...Suggested
$73.5k - $212.28k
...Requirements: Up to 20% At PwC, our people in data and analytics engineering focus on leveraging advanced technologies and techniques to... .... The Opportunity As part of the People Tech & AI team you will lead the design, build, and operation of scalable...Full timeWork experience placementH1bRemote work$73.5k - $212.28k
...Requirements: Up to 60% At PwC, our people in data and analytics engineering focus on leveraging advanced technologies and techniques to... ...team you will lead the development of innovative AI solutions that drive remarkable client outcomes. As a Manager you...Full timeH1b$50.5k - $140k
...Industry/Sector: Not Applicable Time Type: Full time Travel Requirements: Up to 20% The Opportunity As a CTIO - AI Engineer - Experienced Associate, you will leverage advanced analytics and statistical techniques to transform raw data into actionable insights...Full timeH1b- ...National Top Companies Certified as a Great Place to Work® Fortune Best Workplaces in Financial Services & Insurance VP AI Engineering Job Responsibilities · Define and execute the enterprise AI engineering strategy aligned to Sedgwick's claims, risk, and...
- ...various channels. The ideal candidate will have a Bachelor’s degree and 5 years of relevant experience, specifically in Conversational AI and IVR application development. The position includes collaboration with cross-functional teams and performing extensive testing to...Remote work
- PRIMUS Global Services Inc. is looking for an AI Engineer to join their team, focusing on designing, developing, and deploying end-to-end AI applications. Candidates should excel in data ingestion and production inference, contributing directly to innovative AI projects...Remote job
- Brighton Agency, Inc is looking for an AI Engineer to help build innovative AI-powered tools that enhance marketing strategies. Candidates should have a strong knowledge of AI development tools and a collaborative mindset. The role requires a Bachelor’s degree or comparable...
- NLP PEOPLE is seeking an experienced AI Engineer focusing on Machine Learning and Model Development. The role is remote-based in St. Louis, MO, and seeks to fill an immediate need for a senior-level candidate with over 5 years of experience. The successful applicant will...Remote jobImmediate start
- Stifel is looking for an AI-Application Security Engineer responsible for implementing security controls across AI systems. This role involves collaborating with engineering teams to embed security practices and evaluating security tools. The ideal candidate will have...
- ...Mercor is seeking a dedicated engineer to help develop an AI-native platform that enhances operations through advanced dashboards and workflows. This role will focus on the full product delivery, including backend and frontend solutions, analytics experiences, and seamless...Remote work
$142.8k - $261.8k
...you will contribute significantly to the delivery of innovative AI solutions. You will work with a wide variety of clients to... ...complexities of modern robotics, digital twin applications, and software engineering. We'll look to you to provide technical leadership and perform...Full timeWork experience placementSummer holidayFlexible hours- TechDigital Group is seeking a DevOps Engineer with experience in Agentic AI workflows, strong proficiency in Python, and knowledge of containerization technologies. The role involves designing multi-agent systems, contributing to architectural decisions, and leading a...
- Edward Jones in St. Louis is seeking a candidate to join the Low Code Lab, focusing on building innovative low-code, AI-driven applications that solve business problems. The role involves identifying automation opportunities and developing scalable solutions using Microsoft...
- TechDigital Group is seeking an experienced AI Application Developer / AI Engineer to design and deploy AI solutions in St. Louis, Missouri. The role focuses on hands-on work with data, models, and production systems. Key responsibilities include building data pipelines...
$73.8k - $220.4k
You Are: As a Knowledge Engineer, you formulate real‑world problems into practical, efficient, and scalable AI and Knowledge Graph problems. You lead a team and provide guidance to explore and implement new methodologies, model building techniques, and cutting‑edge algorithms...Work experience placementLive inWork at officeLocal area- Job Title: Senior AI/ML Engineer Location: St Louis, IL; Belleview, KY; Collins, AR; Indianapolis, IN; Edwards, IL. Duration: 12+ Months Contract Employment Type: W2 Only Job Summary We are seeking a highly experienced Senior AI/ML Engineer with 9+ years of industry...Contract work
$115k - $120k
A leading software solutions company is hiring a Solutions Engineer in St. Louis to support sales efforts by demonstrating the value of their... ...will have over 3 years of experience in data analytics and AI, with strong communication and problem-solving skills. This remote...Remote work- A technology consulting firm in St. Louis seeks an AI Solutions Engineer to design and implement AI-driven solutions for clients. The role focuses on integrating AI with enterprise systems and requires strong software engineering experience. Candidates should have a Bachelor...
- IBM is seeking a Technology Sales Engineer in St. Louis, Missouri, focused on enhancing enterprise success through Data & AI solutions. You will collaborate closely with clients, create client strategies, and define solutions to deliver substantial value. The preferred...
$124k - $280k
...Specialty/Competency: Data, Analytics & AI Industry/Sector: Health Services Time Type: Full time Travel Requirements: Up to 80% At PwC, our people in data and analytics engineering focus on leveraging advanced technologies and techniques to design and develop...Full timeH1b- What You'll Be Doing The AI-Application Security Engineer is responsible for implementing and scaling technical security controls and security processes across internally developed applications and AI-enabled systems. This role partners directly with engineering teams...
$144k - $329.1k
...Utilities sector. Our mission is to leverage the power of data, AI, and emerging GenAI and Agentic AI capabilities to drive... ...operating models, defining solution architectures, and overseeing the engineering and scaling of AI, GenAI, and Agentic AI capabilities within...Summer holidayFlexible hours$107.9k - $195.05k
The Leidos National Solutions team has an opening for an experienced AI Engineer to lead AI solutions, work on development, collaborate with pipeline development and deployment teams. The FS2 Sea task order teams are involved in the deployment and maintenance of multiple...Full time$155.66k - $225.16k
...with one place to chat, explore and build with a wide variety of AI language models (bots), including o3, o4-mini, Claude 3.7 Sonnet... ...the Team and Role: We’re hiring our first AI Automation Engineer to lead how we apply AI internally across the company. This is...Remote jobFull timeShift work- Sky Mavis is seeking an experienced Cloud Engineer for their St. Louis office. This role focuses on designing and operating cloud services... .... The ideal candidate will have a strong bias towards using AI tools to enhance productivity and will contribute to maintaining...Work at officeFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to AI Engineer. Be the first to apply!


