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Requisition #: 1520 Job Tittle: Software Engineer III Location: St. Louis, MO Clearance: Secret Required Certification: CompTIA Security+ certification or a degree in Computer Science . Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.

Agile Defense

Software Engineer

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In addition to base salary, Voya offers incentive opportunities (i.e., annual cash incentives, sales incentives, and/or long-term incentives) based on the role to reward the achievement of annual performance objectives. Profile Summary: The AI Principal Engineer (IC Director) role is responsible for leading the design and delivery of complex, production-grade AI systems with significant business impact.

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VOYA Financial Inc.

AI Principal Engineer

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When you join us, you'll use your technical expertise to design, develop, and maintain software components and products that support H&R Block business applications and transform our technology. For more than 70 years, we've led the tax industry and we continue to evolve through our Block Next strategy, blending human expertise with digital innovation.

H&R Block Inc

Senior Software Engineer-C#, SQL, Azure (Hybrid in Kansas City, MO)

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Participate in program Agile software development initiatives (daily standups, sprint reviews, and supporting development and functional testing) to support innovation and enhancement of custom applications through iteration/functionality testing. Collaborate with team members (Product Owner, Software Developers, QA Team) to develop test approaches with emphasis on automation of recurring/regression testing through selected toolsets.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc

Test and Evaluation Engineer

Position Purpose: Uses advanced expertise and knowledge to lead the development and operationalization of data pipelines to make data available for consumption (reports and advanced analytics), including data ingestion, data transformation, data validation / quality, data pipeline optimization, and orchestration. Leads data engineers and provides advanced experience in the design, development, implementation, testing, documenting, and operating of large-scale, high-volume, high-performance data structures for business intelligence analytics.

Centene Corporation Group

Lead Data Engineer

Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

Science Applications International Corp

CI/CD and Platform Automation Engineer

If you're passionate about solving complex technical challenges, learning emerging technologies, and developing software that directly supports mission success, this is an exciting opportunity to grow your career while making a meaningful difference. As a Full Stack Engineer, you'll contribute across the entire software development lifecycle, from crafting intuitive user interfaces to building scalable backend services and integrating secure, cloud-native solutions.

Mid-Level Software Engineer

Experience with: Oracle database administration and lifecycle management Performance monitoring, analysis, and tuning Backup and recovery operations High availability and resiliency solutions Database patching and upgrades Incident response, troubleshooting, and root cause analysis Database security and vulnerability remediation Automation, scripting, Infrastructure-as-Code, or configuration management technologies. This role serves as a senior technical resource responsible for ensuring the performance, availability, security, and reliability of production database platforms while supporting the adoption of cloud and managed database technologies.

Guidehouse

Database Engineer – Oracle & Cloud Platforms

A key part of the role is expanding and maintaining automated test coverage for business-critical functionality, embedding quality controls into delivery pipelines, and helping teams release software with confidence. As a QA Engineer, you are responsible for helping engineering teams deliver high-quality software by combining hands-on testing, risk-based quality assurance, and test automation.

SCOR SE

QA Engineer

What you'll be responsible for: Building, testing, deploying, maintaining, and scaling backend services in a micro-services architecture using a modern high level programming language such as Scala, relational databases (Postgres), event streaming (Kafka), and more. Experience with any or all of the following: continuous integration pipelines, observability and monitoring, PostgreSQL or other relational databases, Kafka and event-based systems, Docker and Kubernetes (PaaS/Container orchestration platform).

Jack Henry & Associates Inc

Software Engineer III

Armanino LLP is a licensed independent CPA firm that provides attest services, and Armanino Advisory LLC and its subsidiary entities provide tax, advisory, and business consulting services. Design, build, and own CI/CD workflows for data and analytics assets (pipelines, jobs, semantic models, reports), including branching strategy, promotion, approvals, and rollback.

Armanino McKenna LLP

Senior Data & AI Platform Engineer

If you've been building your skills in backend development, object‑oriented programming, and mission‑driven engineering, and you're ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Mid-Level Backend Software Engineer

This is an early-career engineering role focused on building, operating, and improving cloud data/analytics platforms (e.g., Microsoft Fabric, Snowflake, Databricks) and supporting BI delivery (e.g., Power BI, Tableau). Armanino LLP is a licensed independent CPA firm that provides attest services, and Armanino Advisory LLC and its subsidiary entities provide tax, advisory, and business consulting services.

Data & AI Platform Engineer

Cybersecurity Engineer - ISSO

You will play a key role in modernizing and scaling our payment platform using AWS cloud technologies, event-driven architecture, distributed systems, and AI-assisted development practices, while stabilizing and scaling existing payment processing platform. The ideal candidate is comfortable designing scalable event-driven solutions, solving complex technical problems, and taking ownership of systems that require both innovation and operational excellence.

Software Engineer III Backend C

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. The Software Engineer will be responsible for applying sound software engineering practices, implementing appropriate architecture and security controls, integrating enterprise data and systems, and ensuring applications can be hosted, supported, and operated appropriately within the enterprise.

Clayco Inc

Software Engineer - Full Stack & AI-Enabled Development

In this role you will design, build, and operate security as code across application, data, cloud, and infrastructure environments, ensuring secure-by-default outcomes through automation and developer-native platforms. We are looking for leaders that are energized by creative and critical thinking, building and sustaining high-performing teams, getting results the right way, and fostering continuous learning.

At the Blue Cross and Blue Shield Association (BCBSA), we provide business strategy, technical support and consulting expertise to 36 Blue Cross and Blue Shield companies across the nation, employing more than 1,000 of the best strategic thinkers in the industry.  We are a Brand manager that sets quality control standards for the 36 independent companies that use the Blue Cross and Blue Shield Brands, and we serve as a trade association that represents these Blue companies. It is through our involvement that the Blues companies share a united vision and strategy while also benefiting from the local strength of all member companies.

Blue Cross and Blue Shield Association

Information Security Engineer, Principal

The anticipated base salary range for this role is $119,000-$169,400, with actual compensation determined by job‑related factors such as skills, relevant experience, education, internal alignment, and location. This role sits at the intersection of advanced AI engineering, security architecture, and organizational strategy - driving the adoption of autonomous agent frameworks across complex, multi-team environments.

Chicago Board Options Exchange

Senior AI Platform Engineer

The anticipated base salary range for this role is $131,750-$170,500, with actual compensation determined by job‑related factors such as skills, relevant experience, education, internal alignment, and location. While the internal title for this position is Senior Linux Engineer, this role has been posted externally under a different title to better align with market norms and to attract talent with comparable experience and skill sets.

Sr Platform Engineer

The work also requires mental and visual acuity, speaking, balancing, feeling; picking, pinching, typing, or otherwise working primarily with fingers rather than with the whole hand; grasping; picking, holding or otherwise working with the whole hand; hearing, kneeling, pulling, pushing, reaching, repetitive motion, standing, stooping, talking, and walking. This position assists the Civil Engineer in the application of principles, methods and techniques of civil engineering technology by performing routine and complex engineering technician related work for environmental, water, sewer, street and other public works projects and programs and computer aided drafting and design.

Pipeline Engineer Jobs in Missouri

Software Engineer Agile Defense

AI Principal Engineer VOYA Financial Inc.

Senior Software Engineer-C#, SQL, Azure (Hybrid in Kansas City, MO) H&R Block Inc

Test and Evaluation Engineer Leidos Holdings Inc

Lead Data Engineer Centene Corporation Group

CI/CD and Platform Automation Engineer Science Applications International Corp

Mid-Level Software Engineer Leidos Holdings Inc

Database Engineer – Oracle & Cloud Platforms Guidehouse

QA Engineer SCOR SE

Software Engineer III Jack Henry & Associates Inc

Senior Data & AI Platform Engineer Armanino McKenna LLP

Mid-Level Backend Software Engineer Leidos Holdings Inc

Data & AI Platform Engineer Armanino McKenna LLP

Cybersecurity Engineer - ISSO Science Applications International Corp

Software Engineer III Backend C Jack Henry & Associates Inc

Software Engineer - Full Stack & AI-Enabled Development Clayco Inc

Information Security Engineer, Principal Blue Cross and Blue Shield Association

Senior AI Platform Engineer Chicago Board Options Exchange

Sr Platform Engineer Chicago Board Options Exchange

Civil Engineer Temporary Intern Jefferson County, MO

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