Top 26 Senior software engineer – ai & cloud Jobs in O'fallon, Mo

Sr AI Context Engineer
GEHA —Missouri
- $124,666 - $157,710 a year
- Full-time
- Azure
- HIPAA
- SQL
- AD&D insurance
- Disability insurance
Sr AI Solution Architect
GEHA —Missouri
- $138,859 - $175,665 a year
- Full-time
- Computer science
- Azure
- Computer Science
- AD&D insurance
- Disability insurance
Senior EUC Engineer
World Wide Technology Holding, LLC —St. Louis, MO
- $108,400 - $135,500 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Profit sharing
- Wellness program
Senior Software Engineer
Mastercard —O'Fallon, MO
- $115,000 - $184,000 a year
- Online Application
- Azure
- System design
- AWS
- Paid jury duty
- Health savings account
Software Engineer II
Maritz Inc. —Fenton, MO
- Email
- Hybrid work
- Mid-level
- 3 years
- AWS
- Paid parental leave
- Paid holidays
SDC Java Software Developer---Senior---St. Louis
EY —St. Louis, MO
- $67,000 - $155,300 a year
- Computer science
- Azure
- Computer Science
- Paid holidays
- Health insurance
Dev Ops Engineer
World Wide Technology Holding, LLC —St. Louis, MO
- $94,500 - $110,125 a year
- Full-time
- Remote
- Mid-level
- 3 years
- Communication skills
- Profit sharing
- Wellness program
Sr Engineer (St. Louis)
World Wide Technology Holding, LLC —St. Louis, MO
- $108,400 - $135,500 a year
- Full-time
- Remote
- Computer science
- 7 years
- Computer Science
- Profit sharing
- Wellness program
Senior Engineer - Contract
World Wide Technology Holding, LLC —St. Louis, MO
- $52 - $65 an hour
- Contract
- Computer science
- 7 years
- Computer Science
Senior Engineering Manager – Cloud Engineering
Boeing —Hazelwood, MO
- $170,000 - $230,000 a year
- Computer science
- Computer Science
- Engineering
- Health savings account
- Disability insurance
11d
Sr. Analyst - AI Transformation Office
World Wide Technology Holding, LLC —St. Louis, MO
- $83,600 - $104,500 a year
- Full-time
- Oracle
- 5 years
- Salesforce
- Profit sharing
- Wellness program
9d
DevSecOps Software Engineer (Experienced or Senior)
Boeing —Hazelwood, MO
- $112,200 - $185,150 a year
- Computer science
- Computer Science
- Bachelor of Science
- Health savings account
- Disability insurance
Sr Network Engineer (St. Louis)
World Wide Technology Holding, LLC —St. Louis, MO
- $108,400 - $135,500 a year
- Full-time
- Computer Science
- 5 years
- US work authorization
- Profit sharing
- Wellness program
3d
Senior Developer - Go Language (US Citizenship REQUIRED)
World Wide Technology Holding, LLC —St. Louis, MO
- $106,400 - $133,000 a year
- Full-time
- Remote
- 5 years
- Continuous improvement
- Mentoring
- Profit sharing
- Wellness program
Senior Technical Program Manager
Mastercard —O'Fallon, MO
- $96,000 - $163,000 a year
- Online Application
- Computer science
- Computer Science
- Organizational skills
- Paid jury duty
- Health savings account
Principal Software Engineer I
Spectrum —Maryland Heights, MO
- Full-time
- Hybrid work
- Office
- Residential
- 8 years
- Work from home
- Opportunities for advancement
3d
Senior Site Reliability Engineer, Performance Engineering
Mastercard —O'Fallon, MO
- $96,000 - $163,000 a year
- Online Application
- Computer Science
- System design
- Java
- Paid jury duty
- Health savings account
DevOps Architect - St. Louis, MO
Hubbell Incorporated —St. Louis, MO
- Hybrid work
- 5 years
- Bachelor of Science
- Engineering
Manager - Business Infrastructure Services (St. Louis)
World Wide Technology Holding, LLC —St. Louis, MO
- $126,800 - $158,500 a year
- Full-time
- Computer science
- Computer Science
- System design
- Profit sharing
- Wellness program
3d
SDC BCMT Technical Program Manager-- St. Louis
EY —St. Louis, MO
- $67,000 - $155,300 a year
- Computer science
- 6 years
- Computer Science
- Paid holidays
- Health insurance

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Sr AI Context Engineer

GEHA -
Missouri

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Job Details

Full-time
$124,666 - $157,710 a year

Benefits

AD&D insurance
Disability insurance
Health insurance
Dental insurance
Tuition reimbursement
Paid time off
Vision insurance
401(k) matching
Benefits from day one

Qualifications

AI models
Search engines
Software engineering
Azure
Authorization controls implementation
Software design
Continuous Delivery (CD) implementation
Automation
Tooling
Application security management
Data retrieval time improvement
HIPAA
HITRUST
AI platforms (beyond public GPTs)
Computational framework
SQL
Machine learning cloud services
Collaboration with product development teams
Machine intelligence
Solution architecture design
Cloud security
Data pipeline scheduling
Airflow
Indexing strategies
Metadata tagging
Data access controls implementation
Security Governance (information security management)
Machine learning (ML) fundamentals
Access control management
1 year

Full Job Description

Government Employees Health Association, Inc. (G.E.H.A) is a nonprofit member association that provides health and dental benefits that millions of federal employees and retirees, military retirees and their families have counted on since 1937. Offering one of the largest health and dental benefit provider networks available to federal employees in the United States, G.E.H.A empowers health and wellness by meeting its members where they are, when they need care.

G.E.H.A has one mission: To empower federal workers to be healthy and well.

As a Senior AI Context Engineer in Digital Innovation, you turn raw, structured and unstructured enterprise information—such as policy documents, brochures, and clinical records—into accurate, high-quality context for AI applications. Positioned at the intersection of applied data science and software engineering, you focus on the quality, semantic structuring, and retrieval accuracy of data consumed by G.E.H.A’s AI solutions. You own the extraction, document chunking, vector indexing, and RAG retrieval mechanics that power G.E.H.A’s AI tools.

Operating closely with the Sr. AI Solutions Architect, AI Full Stack Developer, and enterprise partners, you serve as the contextual bridge between the enterprise Data & Analytics, Digital Innovation and enterprise applications. In this role, you establish data enrichment, retrieval and evaluation frameworks that ensure AI agents have fast, secure, and compliant access to business context, all while leveraging enterprise cloud and data infrastructure.

SKILLS

Duties and Responsibilities:

Context Engineering & Retrieval Optimization

Extraction & Chunking: Build and refine advanced structured and unstructured information parsing, layouts processing, and chunking workflows (converting PDFs, clinical notes, data, and policy docs) into high-quality contextual units for LLMs in partnership with cross-functional teams.
Semantic Search & Reranking: Implement hybrid search mechanics, metadata routing, and reranking logic to drastically improve retrieval precision and minimize model hallucinations.
Agentic Context Services: Design context payload specifications and metadata structures that feed into Model Context Protocol (MCP) servers and LLM orchestration tools built by application developers.

Vector Indexing & Retrieval Architecture

Index Design & Optimization: Recommends and implements vector indexing strategies, embedding schemes, and semantic query designs inside enterprise-provisioned vector stores (e.g., Pinecone, pgvector, Azure AI Search) to ensure high-performance, low-latency retrieval.
Vector Metadata: Design and manage sophisticated metadata tagging schemes to enable precise filtering, hybrid search, and domain-specific context retrieval.
Retrieval Evaluation & Groundedness: Establish automated evaluation frameworks to continuously monitor retrieval relevance, context quality, groundedness scores, and embedding drift over time.

Context Security, Compliance & Governance

Healthcare Context Compliance: Ensure all document processing and contextual payloads strictly adhere to HIPAA and HITRUST standards, implementing automated masking and tokenization for Protected Health Information (PHI).
Context-Level Access Control: Ensure role-based access control (RBAC) rules within vector metadata, ensuring AI search queries only return contextual snippets that the active user is authorized to see.
Auditing & Hand-off Lineage: Maintain context tracking and audit logs for prompt payloads, establishing clean data hand-off specifications when transitioning validated innovation prototypes to enterprise Data & Analytics or IT teams.

Collaborative Execution

Reference Pattern Alignment: Build upon the reference architectures, CI/CD templates, and "golden paths" established by the Sr. AI Solutions Architect.
Product Support: Work alongside the AI Product Owner and AI Full Stack Developers to rapidly supply high-accuracy context layers for upcoming GenAI features.

Knowledge, Skills, and Abilities:

Experience: 5+ years of experience in backend software engineering, applied machine learning/search, or data-centric application development.
GenAI & RAG Focus: 1–2 years of hands-on experience specifically optimizing AI and RAG architectures, prompt context strategies, and vector retrieval pipelines for LLM applications.
Programming & Tooling: Advanced proficiency in Python and SQL, alongside familiarity with modern orchestration tools (e.g., Airflow, Prefect, Temporal).
Unstructured Content Parsing: Deep experience using parsing frameworks (e.g., LlamaIndex, Unstructured.io, LangChain document loaders) to process complex layouts, tables, and unstructured documents.
Vector & Search Engines: Hands-on experience working with vector databases, embeddings, and semantic search platforms (e.g., Pinecone, pgvector, Weaviate, Qdrant, Azure AI Search).
Evaluation Frameworks: Familiarity with RAG and LLM context evaluation frameworks (e.g., Ragas, TruLens, Arize Phoenix) to measure retrieval recall, precision, and groundedness.
Data Security & Privacy: Practical experience handling sensitive healthcare data (PHI/PII) within high-compliance software environments.

Work-at-home requirements

Must have the ability to provide a non-cellular High Speed Internet Service such as Fiber, DSL, or cable Modems for a home office.
A minimum standard speed for optimal performance of 30x5 (30mpbs download x 5mpbs upload) is required.
Latency (ping) response time lower than 80 ms
Hotspots, satellite and wireless internet service is NOT allowed for this role.
A dedicated space lacking ongoing interruptions to protect member PHI / HIPAA information

How we value you

Competitive pay/salary ranges
Incentive plan
Health/Vision/Dental benefits effective day one
401(k) retirement plan: company match – dollar for dollar up to 4% employee contribution (pretax or Roth options) plus a 6% annual company contribution
Robust employee well-being program
Paid Time Off
Personal Community Enrichment Time
Company-provided Basic Life and AD&D
Company-provided Short-Term & Long-Term Disability
Tuition Assistance Program

While this is a remote opportunity, at this time G.E.H.A does not hire employees from U.S. territories or the following states: Alaska, Hawaii, California, Washington, Oregon, Colorado, Wyoming, Montana, New York, Connecticut, Vermont, Pennsylvania, Maine.

Please note that the salary information is a general guideline only. G.E.H.A considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.

The target hiring range for this position is $124,666 - $157,710 USD. At G.E.H.A, the current maximum salary for this role is $175,734 USD. While initial compensation may vary based on experience and qualifications, there is a path to work toward this top rate through performance and continued growth within the organization.

G.E.H.A is an Equal Opportunity Employer, which means we will not discriminate against any individual based on sex, race, color, national origin, disability, religion, age, military status, genetic information, veteran status, pregnancy, marital status, gender identity, and sexual orientation, as well as all other characteristics and qualities protected by federal, state, or local law. G.E.H.A will not discriminate against employees or applicants because they have inquired about, discussed, or disclosed their compensation or the compensation of another employee or applicant. We are committed to creating an inclusive environment for all employees.

G.E.H.A is headquartered in Lee's Summit, Missouri, in the Kansas City area. We recognize the importance of balance and flexibility and offer hybrid and work-from-home options for many of our roles.

Apply Now

Refine Your Search

senior software engineer – ai & cloud jobs in o'fallon, mo

Sr AI Context Engineer

Sr AI Solution Architect

Senior EUC Engineer

Senior Software Engineer

Software Engineer II

SDC Java Software Developer---Senior---St. Louis

Dev Ops Engineer

Sr Engineer (St. Louis)

Senior Engineer - Contract

Senior Engineering Manager – Cloud Engineering

Sr. Analyst - AI Transformation Office

DevSecOps Software Engineer (Experienced or Senior)

Sr Network Engineer (St. Louis)

Senior Developer - Go Language (US Citizenship REQUIRED)

Senior Technical Program Manager

Principal Software Engineer I

Senior Site Reliability Engineer, Performance Engineering

DevOps Architect - St. Louis, MO

Manager - Business Infrastructure Services (St. Louis)

SDC BCMT Technical Program Manager-- St. Louis

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