Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior AI Software Engineer-TS/SCI clearances (CI poly preferred)

$155k - $200k

Credence

Job Description

Job Description

Overview

Join a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With 1,700+ team members, 1,500+ AI/data experts, and 100+ prime contracts, we deliver at scale and with purpose.

We’ve been recognized as a Top Workplace by the Washington Post for six straight years and named to the Inc. 5000 Fastest Growing Private Companies 13 of the past 14 years. Credence is a welcoming home for those looking to grow and contribute to positive change. We encourage all employees to expand beyond their boundaries, dive into important world-changing Federal challenges.

Position Summary

Credence has an immediate need for a Senior AI Software Engineer to join our growing AI and Automation practice. In this role, you will serve as a senior technical contributor responsible for designing, developing, and deploying advanced AI-driven solutions, including generative AI, LLM-powered applications, and agentic AI systems. You will collaborate with cross-functional engineering, data, cloud, and stakeholder teams to deliver scalable, secure, and mission-focused AI capabilities for federal clients, while helping guide technical direction, strengthen engineering practices, and mentor other engineers.

 

Responsibilities include, but are not limited to the duties listed below

  • Generative AI & LLM Solution Delivery
    Lead the design, development, prototyping, and refinement of AI-powered capabilities using generative AI, large language models, retrieval patterns, prompt/context engineering, and secure API integrations.
  • Agentic AI System Development
    Own end-to-end agentic AI development lifecycles, including model selection, agent design, tool/function calling, orchestration, response synthesis, evaluation, and deployment of reliable AI agents.
  • Senior Software Engineering Leadership
    Apply strong software engineering principles to design maintainable, testable, and scalable systems; conduct code reviews, establish technical patterns, and leverage AI-assisted development tools responsibly to accelerate delivery.
  • Cross-Functional Technical Collaboration
    Partner with data engineers, software engineers, data scientists, cloud engineers, and mission stakeholders to translate business and mission needs into operational AI and automation solutions.
  • Cloud Enablement & DevSecOps Integration
    Design and automate deployment workflows using Infrastructure as Code (IaC), CI/CD pipelines, containers, and cloud-native services to support secure, repeatable, and scalable AI delivery.
  • Production Monitoring & Optimization  
    Monitor AI systems post-deployment, perform performance tuning, and apply best practices for reliability and scalability.
  • Technical Rigor & Documentation  
    Write clean, well-documented code following industry and federal guidelines; support reproducible development.
  • Technical Mentorship & Continuous Improvement
    Stay current on emerging AI/ML trends, agentic frameworks, model capabilities, and engineering practices while mentoring team members and contributing to reusable standards, documentation, and technical design reviews.

Requirements

What You Bring

  • TS/SCI clearances Required (CI poly preferred).
  • Bachelor’s or Master’s in Computer Science, AI/ML, or a related field.
  • 7+ years of hands-on software engineering experience, including significant experience delivering AI/ML, generative AI, or LLM-powered solutions in production or production-like environments.
  • Experience building generative AI applications, working with LLMs, implementing tool/function calling, and applying model evaluation, prompt/context engineering, or retrieval-augmented generation approaches.
  • Experience designing or implementing agentic AI solutions using frameworks or platforms such as Agent2Agent Protocol, Bedrock Agents, Mastra, CrewAI, Strands, AgentCore, LangChain, or LangGraph.
  • Strong understanding of leading AI APIs and model platforms such as OpenAI, Anthropic, Gemini, Amazon Bedrock, and Google Vertex AI.
  • Proficiency in TypeScript and familiarity with key libraries and frameworks such as Nx, Next.js, Mastra, Vercel AI SDK, Playwright, Jest, and Vite.
  • Python proficiency and familiarity with libraries and frameworks (uv, Pydantic, FastAPI, CrewAI, LangChain, LangGraph, Unstructured).
  • Demonstrated curiosity and practical experimentation with emerging AI technologies, with a strong focus on responsible innovation and measurable mission impact.
  • Familiarity with CI/CD pipelines (GitLab CI)
  • Experience with VS Code and AI extensions such as Cline and Claude Code.
  • Strong communication skills and client-oriented mindset.

Preferred

  • Curious and experimental about the latest innovations in AI with an orientation toward the relentless pursuit of delivering mission impact.
  • Exposure to adjacent skillsets such as data engineering, data science, UI/UX, cloud engineering, and platform engineering to understand the entire software ecosystem.
  • Experience with IaC tools such as Terraform, Open Tofu, AWS CDK, or CloudFormation to deploy cloud native applications.
  • Knowledge of federal cybersecurity, RMF, FedRAMP, or regulatory frameworks.

Why This Role Matters

  • Real-World Impact — Your work will support defense and health agencies where AI solutions directly contribute to national security and public well-being.
  • Growth-Oriented Technical Leadership — Work with technical leaders, shape agentic AI delivery practices, and mentor team members while continuing to deepen your own expertise in advanced AI engineering.
  • Culture of Empowerment — You’ll be part of a team that values innovation, trust, collaboration, and mission success.

  Salary Range: $155,000 - $200,000 annually. Actual compensation will be determined based on the selected candidate's experience, education, certifications, skills, and overall qualifications.

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k, IRA)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Family Leave (Maternity, Paternity)
  • Short Term & Long Term Disability
  • Training & Development
  • Wellness Resources

Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the Senior AI Software Engineer-TS/SCI clearances (CI poly preferred) in Saint Louis, MO vacancy
  •  ...looking to hire a Systems Engineer with Linux system...  ...role requires an active TS/SCI clearance with the ability to obtain a CI Polygraph post-hire. The...  ...of systems architecture, software development, and software...  ...sustainment practices Preferred Skills/Experience: Red... 
    Software
    For contractors
    Flexible hours

    North Point Technology

    Saint Louis, MO
    8 days ago
  •  ...*This job requires active  TS/SCI clearance.  Please apply only if you...  ...looking to hire a Full Stack Software Engineer to support a mission-...  ...Version control with Git CI/CD pipelines (GitLab CI or...  ...accreditation processes (RMF, STIGs) Preferred Skills/Experience: Go... 
    Software
    Contract work
    Flexible hours

    North Point Technology

    Saint Louis, MO
    2 days ago
  • $140k - $165k

     ...As an Onsite DevOps Engineer, you will work with...  ...deliver valuable working software to clients and their...  ...delivery (CI/CD) pipelines. Monitor...  ...related technical degree preferred Location :...  ...or St. Louis, MO Clearance : Must have TS/SCI and be willing to submit... 
    Software
    Temporary work
    Immediate start
    Weekend work

    Metric5

    Saint Louis, MO
    a month ago
  • $150k - $165k

     ...Cherokee Preting, part of Cherokee Federal, seeks an experienced Software Engineer to support a government client. This role requires an active Top Secret/SCI clearance and US citizenship, with a starting salary range of $150,000 to $165,000. Responsibilities include... 
    Software

    Jobleads-US

    Saint Louis, MO
    6 hours ago
  •  ...Support and enhance CI/CD deployment...  ...Required: ~ TS/SCI clearance with CI Polygraph....  ...III certification preferred ~ Experience supporting...  ...Experience with integrated software delivery, CI/CD...  ...in system engineering or project management...  ...we do. Growth: AI-powered career... 
    Software

    General Dynamics Information Technology

    Saint Louis, MO
    7 days ago
  •  ...Have We are seeking a Senior Data Scientist to...  ...modeling, visualization, and software development to solve...  ...You Must Have Active TS/SCI clearance (ability to obtain a CI Poly preferred). Demonstrated experience...  ...with analysts, engineers, and mission stakeholders... 
    Senior
    Software
    Immediate start

    GRVTY

    Saint Louis, MO
    29 days ago
  •  ...Title: Senior Software Engineer - Full Stack & Secure Systems Location: St. Louis,...  ...Employment Type: Full-Time Security Clearance: Active TS/SCI Clearance Preferred About the Opportunity We...  ...and Helm ~ Experience with CI/CD tools such as GitLab CI or... 
    Senior
    Software
    Full time

    Abode Tech Zone

    Saint Louis, MO
    3 days ago
  • $122k - $147k

    Senior Network Engineer Springfield, VA or St. Louis, MO Active TS (SCI eligibility) clearance and eligibility to obtain a CI poly At Bcore, our strength comes from how we...  ...systems engineering, software development, and...  ...- CCIE/F5-CSE/JNCIE preferred SME level understanding... 
    Senior
    Software

    teKnoluxion

    Saint Louis, MO
    17 hours ago
  • $115k - $155k

     ...geospatial analysis, and AI/ML, we are building...  ...customer needs to Fraym engineers and data scientists....  ...Citizenship Security Clearance Experience in or...  ...Experience with GIS software (Esri, Q-GIS, etc.)...  ...assisted workflows Preferred St. Louis, MO, preferred... 
    Software
    Full time
    Remote work
    Worldwide
    Flexible hours

    Fraym

    Saint Louis, MO
    a month ago
  • $107.9k - $195.05k

     ...As a Sr. UI/IX Engineer, you will play a critical...  ...talented software engineers, systems...  ...Tucson, AZ  Clearance Level Required:...  ...Active Top Secret/SCI with the ability to...  ...Experience with CI/CD tools (GitLab CI...  ...RMF, STIGs) Preferred Qualifications:... 
    Senior
    Software
    Contract work
    Local area
    Immediate start

    Leidos

    Venice, IL
    17 hours ago
  • $184k - $259.44k

     ...Scale AI is seeking a highly skilled and motivated Software Engineer, Frontier AI Infrastructure to join...  ...an active secret clearance and the ability & willingness...  ...to up level to TS/SCI with CI Poly. This is a...  ...salary range for your preferred location during the... 
    Software
    Full time
    Work at office
    3 days per week
    Early shift

    Scale AI

    Saint Louis, MO
    3 days ago
  •  ...Job Title Budget Analyst (Senior) Functional Title Budget Analyst - Senior...  ..., database, and Microsoft PowerPoint software. Provide support to Program...  ...defending programs and budgets. Clearance: TS/SCI w/CI Poly Desired Skill Set: Demonstrated... 
    Senior
    Software
    Full time
    Contract work
    For contractors
    Work experience placement
    Work at office

    Quantech Services

    Saint Louis, MO
    3 days ago
  •  ...exceptional employees. We are seeking a Software Engineer to support unique systems solutions...  ...to meet client needs. Implement CI/CD pipelines using GitLab. Collaborate...  ...classified information. Must have an active TS/SCI security clearance with the ability to maintain... 
    Senior
    Software
    Remote work

    DCS Corp

    Saint Louis, MO
    17 hours ago
  •  ...Description Overview Senior Helpdesk Specialist...  ..., hardware, or software Assist in responding...  ...6 months of hire TS/SCI clearance Successfully pass...  ...drug screening   Preferred Qualifications: ~ Active...  ...Ability to obtain CI Poly Clearance Ability... 
    Senior
    Software
    Work at office
    Work from home
    Home office
    Shift work

    Chenega Corporation

    Saint Louis, MO
    11 days ago
  •  ...: St. Louis, MO Clearance : TS/SCI Citizenship : US...  ...through cutting-edge software systems. Because...  ...Collaborate with engineering and product...  ...environment using common AI frameworks such...  ...to obtain a CI poly. Desired Skills Prior...  ...on top of Python preferred (C++, Julia, Go,... 
    Software

    Intellectix

    Saint Louis, MO
    2 days ago
  • $120k - $135k

     ...0 Eligibility/Clearance: Candidate must...  ...possess an active TS/SCI clearance and...  ...to obtain a CI Polygraph Job...  ...documentation related to software systems and...  ...sponsor your poly if you don't...  ...experience. Preferred: Prior experience...  ...Systems, Engineering, Cybersecurity... 
    Software

    Arena Technical Resources

    Saint Louis, MO
    2 days ago
  •  ...Job Description Software / Web Developer   Experience...  ...with an active TS/SCI clearance to support enterprise...  ...enterprise DevSecOps and CI/CD environments....  ...in Computer Science, Engineering, Mathematics, or related...  ...skills. Preferred Qualifications... 
    Software

    Meridian Systematics

    Saint Louis, MO
    7 days ago
  •  ...Description Job Title: Senior AI Backend Platform Engineer Location: St. Louis, MO...  ...5+ years of professional software engineering experience with...  .... ~ Understanding of CI/CD and automated deployment...  ...now or in the future. Preferred Qualifications: Experience... 
    Senior
    Software
    Contract work

    ZipStaff Inc.

    Saint Louis, MO
    a month ago
  •  ...providing expert Engineering and Technical Support...  ...for overseeing software development management...  ...or related field preferred. ~8+ years of...  ...recommendations. ~ Active TS SCI clearance with the ability to pass a CI poly.   Knowledge...  ...employees to senior leaders, we... 
    Software
    Work at office

    Chenega Corporation

    Saint Louis, MO
    10 days ago
  •  ...Model: Onsite Security Clearance: TS/SCI with ability to obtain polygraph...  ...Provide senior program and project management...  ...process improvement and re-engineering efforts, applying methodologies...  ...knowledge of business application software for presentations, word processing... 
    Senior
    Software
    Contract work
    For contractors
    Local area

    System One

    Saint Louis, MO
    12 days ago
  • Sr Network Engineer Abile Group has an exciting and challenging...  ...hardware and software problems and replace...  ...functions. Qualifications Clearance Required: TS/SCI with ability to obtain a CI Poly. Degree and Years of...  ...0 years of experience preferred with several years... 
    Senior
    Software
    Contract work
    For contractors
    Immediate start
    Worldwide

    Abile Group, Inc.

    Saint Louis, MO
    2 days ago
  •  ...Job Description Job Description Senior AI & Application Security Engineer Join an enterprise security team...  ...lead security initiatives across the software and AI lifecycles, including applications...  ...using Python, cloud services, and CI/CD pipelines . Define... 
    Senior
    Software

    duvari group

    Saint Louis, MO
    16 days ago
  • Senior Software Engineer Tapestry Solutions, a part of Boeing Global Services...  ...): Active U.S. Secret Clearance with the ability to obtain TS/SCI 5+ years of experience...  ...operating systems Preferred Qualifications (Desired...  ...DevOps Pipelines or other CI/CD tools Microservices... 
    Senior
    Software
    Flexible hours

    Boeing

    Hazelwood, MO
    17 hours ago
  •  ...Senior-level Test Systems Engineers assist in leading Application, System and Integration...  ...testing on the system software or hardware to determine...  .... Security Clearance: ~ Active TS/SCI clearance and the willingness to sit for a CI polygraph, if needed... 
    Senior
    Software

    IC-CAP, LLC

    Saint Louis, MO
    17 hours ago
  • $113k - $139k

    Linux Systems Engineer Linux Systems Engineer Springfield...  ...St. Louis, MO Active TS (SCI eligibility) clearance and eligibility to obtain a CI poly At Bcore, our...  ...systems engineering, software development, and operational...  ...Community Experience preferred What you can expect... 
    Software

    teKnoluxion

    Saint Louis, MO
    2 days ago
  •  ...Job Tittle: Software Engineer III Location...  .... Louis, MO Clearance: Secret Required...  ...to obtain a TS with the ability to obtain an SCI ~5+ years of...  ...or MSTest  Preferred Skills Windows...  ...Pipelines or other CI/CD tools...  ...intelligence (AI) tools to support... 
    Software
    Work at office

    Agile Defense

    Saint Louis, MO
    a month ago
  • Cloud Engineer Abile Group has an exciting and challenging opportunity for...  ...design concepts. Qualifications Clearance Required: TS/SCI with ability to obtain a CI Poly. Degree and Years of Experience:...  ...; integrating with COTS/FOSS software REST APIs. Supporting a full-stack... 
    Software
    Contract work
    For contractors
    Immediate start
    Worldwide

    Abile Group, Inc.

    Saint Louis, MO
    2 days ago
  • $86k - $138k

    Cloud Engineer Job Locations US-MO-St Louis Requisition ID...  ...Position Category Engineering Clearance Top Secret/SCI w/Poly Responsibilities Cloud...  ...mission solutions. Leverages software-, platform- and...  ...systems engineering efforts. TS/SCI clearance adjudication... 
    Software
    Contract work
    Work experience placement
    Remote work
    Shift work

    Peraton

    Saint Louis, MO
    2 days ago
  • $131.3k - $237.35k

     ...a highly skilled Software Engineer ready to tackle complex...  ...will serve as a senior technical...  ..., MO Tucson, AZ Clearance Level Required: Active Top Secret/SCI with the ability to...  ...continuous delivery (CI/CD), and DevSecOps...  ...GEOINT workflows. Preferred Qualifications: Frontend... 
    Software
    Contract work
    For contractors
    Local area
    Immediate start

    Leidos

    Saint Louis, MO
    17 hours ago
  •  ...Administrator St. Louis, MO Active TS (SCI eligibility) clearance and eligibility to obtain a CI poly Security+ or CASP, ITIL v4...  ..., DevSecOps, systems engineering, software development, and operational...  ...Intelligence Community Experience preferred What you can expect from us... 
    Software
    Work experience placement
    Remote work
    Flexible hours
    Weekend work

    teKnoluxion Consulting LLC

    Bridgeton, MO
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior AI Software Engineer-TS/SCI clearances (CI poly preferred). Be the first to apply!