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Senior Systems Integration Engineer
Hazelwood or Berkeley
$137k-$185k/yr OnsiteFull Time
Bachelor's in engineering-related field, systems engineering and system integration experience, hardware/software integration, networking, Windows/Linux, scripting, and active U.S. Secret security clearance (U.S. Person required).
Windows, Linux, BIOS, File Servers, Network Switch, Visual Systems, Computational Systems
1mo
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Senior Systems Integration Engineer
Hazelwood or Berkeley
$137k-$185k/yr OnsiteFull Time
Active U.S. Secret clearance and U.S. Person required, Bachelor's degree in a relevant STEM field, systems engineering and integration experience, hardware/software integration, Windows/Linux and BIOS experience, obsolescence management and troubleshooting skills.
Windows, Linux, BIOS, File Servers, Network Switch
1mo
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Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yr HybridFull Time
5+ YOE5+ years software development experience; hands-on Power Apps/Power Automate and Power Platform, REST/JSON API integration, Microsoft Azure, CI/CD and DevOps, Dataverse, Infrastructure as Code, and data mapping; knowledge of data privacy.
Microsoft Power Platform, Power Apps, Power Automate, Dataverse, Microsoft Azure, RESTful APIs, JSON, CI/CD, DevOps, Infrastructure as Code, ServiceNow, RPA, Microsoft SharePoint
1mo
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Systems Integration Testing Engineer
St Louis, Missouri, United States
$112k-$179k/yr OnsiteFull Time
6+ YOEMust hold Top Secret clearance and be willing to upgrade to TS/SCI with polygraph. BS in systems/electrical/physics/software engineering (or related) with 8 years' systems engineering experience (6 years with Master's). Experience in sensor imaging systems, test design, data verification, and strong written/oral communication required.
20h
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Lead Software Engineer
O'Fallon, Missouri, United States
HybridContract
Bachelor's in CS/IS, strong full-stack Java, API, Angular, React skills; experience with Agentic frameworks, MCP and LLM integrations; Qlik Sense and data architecture experience; strong analytical and communication skills.
Java, APIs, Angular, React, Agentic Frameworks, MCP, LLMs, Qlik Sense, Tableau, Power BI, WebFocus, Hadoop, Kafka
3mo
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Software Engineer II
O'Fallon, Missouri, United States
$92k-$147k/yr OnsiteFull Time
Experience building applications with Power Apps; strong JS/HTML, API integrations, SQL, and Azure knowledge.
Power Apps, Power Automate, Dataverse, SharePoint, Excel, SQL, APIs, JavaScript, HTML, Azure, Git
3mo
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Principal Software Engineer-Agentic AI
St Louis or Houston or Raleigh
$115k-$192k/yr OnsiteFull Time
Agentic AI design and integration, LLMs, orchestration (LangChain/OpenAI), tool-augmented agents, prompt engineering, AI governance, and scalable, reliable AI architectures.
LangChain, OpenAI APIs, LLMs, vector databases, retrieval systems, memory systems, RAG, function calling, prompt engineering
3mo
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Customer Onboarding and Integration Engineer
St. Louis, Missouri, United States
OnsiteFull Time
3+ YOEActive TS/SCI clearance; 3–7 years software development, system integration, or technical support; customer-facing; strong communication; Agile; GitLab or similar collaboration tools.
Linux, APIs, AWS, CI/CD, GitLab CI/CD, Containerization, Serverless, Data mapping, Data transfer, Dashboards, IAM
2mo
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Senior Software Engineer-Oracle EPM
St Louis, Missouri, United States
$105k-$204k/yr HybridFull Time
5+ YOEBachelor’s degree plus 5+ years relevant experience; hands-on Oracle EPM and cloud integrations; senior functional knowledge in DRM/EDMCS, Hyperion, and API-based integrations.
Oracle EPM, DRM/EDMCS, Oracle Cloud EPM, EPCM, Hyperion, MuleSoft, ODI, FDMEE, SmartView, Financial Reporting Studio, API development
1mo
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Software Development Engineer II- Back End
Redlands or St. Louis or Vienna
$97k-$162k/yr OnsiteFull Time
2+ YOE2+ years backend engineering experience building services with Python, Node.js/JavaScript, or Java; REST API design; ArcGIS Enterprise integration; containerization (Docker/Kubernetes); Top Secret/SCI clearance required; Bachelor's degree in CS/Math/GIS/STEM.
Python, Node.js, JavaScript, Java, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Docker, Kubernetes, Azure, AWS, GCP, PostgreSQL, PostGIS, SQL Server, REST APIs
2d
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Mid Software Engineer (SFA)
Saint Louis, Missouri, United States
OnsiteFull Time
5+ YOE5-7 years software development experience; proficiency in Python/Java/C#/Javascript; experience translating requirements, design, testing, deployment, database design, code reviews, and system integration. Active TS/SCI clearance and US citizenship required.
Python, Java, C#, Javascript
2w
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Software II Developer
Saint Louis or Alabama or Kentucky or Oklahoma or Arkansas or Louisiana or South Carolina or Florida or Mississippi or Tennessee or Georgia or Texas or Indiana or North Carolina or Wisconsin or Iowa or Ohio
$76k-$124k/yr RemoteFull Time
3+ YOEDesign, develop, test and support integrations and applications using Cloverleaf, Tcl and healthcare messaging standards (HL7, X12, XML); 3+ years healthcare IT integration experience preferred; Bachelor's degree or equivalent.
Cloverleaf, Tcl, HL7, X12, XML, MQS, Epic, Bridges, Cogito, Onbase, SQL, Perl, Python, SFTP, VPN
2mo
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Software Engineer - Frontend
Florissant, Missouri, United States
OnsiteFull Time
Extensive experience building frontend architecture and design systems; React/Next.js web, React Native/Expo mobile; UI/UX optimization; scalable deployments; AI/SEO integration.
React, Next.js, React Native, Expo, Tailwind CSS, LaunchDarkly, New Relic, Mixpanel, Mux, Cloudflare Pages, Vercel, AWS Amplify, ECS, Fargate, EC2, S3, CloudFront, AI/SEO tooling
3w
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Senior Developer
Sunset Hills, Missouri, United States
RemoteFull Time
5+ YOE5+ years professional software development, strong SQL and relational DB skills, experience building system integrations (APIs/EDI), ability to work with legacy code, clear communication, and security awareness.
SQL, RPG, IBM i, IBM Power Systems, EDI, X12, REST, JSON, APIs, ERP, Microsoft Azure, AWS
3w
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ServiceNow Developer
McLean or Tysons Corner or Orlando or Charlotte or Detroit or Mitchell or Boulder or Philadelphia or Miami or Boston or Burlington or El Segundo or Austin or Houston or San Antonio or Columbia or Jacksonville or Lewisville or Salt Lake City or New York City or Fairview Heights or Arlington or Sacramento or Tampa or Beavercreek or Folsom or Chicago or Huntsville or Atlanta or Los Angeles
$113k-$188k/yr HybridFull Time
3+ YOEUS citizen with ability to obtain Public Trust, bachelor\u0002s degree, 3+ years professional experience, ServiceNow expertise (GRC, SPM, ITSM, App Engine, Scoped Apps), JavaScript/Glide/AngularJS scripting, Flow Designer, IntegrationHub, web services (SOAP/REST), SDLC and Agile experience.
ServiceNow, GRC, SPM, ITSM, App Engine, Scoped Apps, Mid-Server, SOAP, REST, JavaScript, Glide, AngularJS, Flow Designer, IntegrationHub, ServiceNow Automated Test Framework (ATF)
3d
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Full Stack Developer
St. Louis, Missouri, United States
$85k-$117k/yr RemoteFull Time
8+ YOEU.S. citizenship and Public Trust required. 8+ years software development with strong back-end focus (Java and/or NodeJS), REST API design, Angular front-end, AWS, Git/GitHub, unit/integration testing, and healthcare/EDI experience.
Java, NodeJS, Angular, C#, .Net, TypeScript, Electronic Data Interchange (EDI), XML, JSON, AWS, API Gateway, Lambda, Amazon S3, CloudWatch, Git, GitHub, JUnit, Jest, Docker, ECS, EKS, JIRA, Microsoft Teams
3w
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Quality Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
2+ YOE2+ years SDET/test engineering experience; proficiency in Python, JavaScript, or Java; experience with Selenium, Cypress, or Playwright; API testing (Postman/REST Assured); CI/CD integration; Agile experience and strong analytical/communication skills.
Python, JavaScript, Java, Selenium, Cypress, Playwright, CI/CD, Postman, REST Assured, JMeter, K6, LoadRunner, iOS, Android, AWS, Azure, GCP, Docker
1mo
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Senior Developer
Scott Air Force Base or St. Louis
OnsiteFull Time
5+ YOEBachelor's in CS/data field, 5+ years in data engineering or software development, active Secret clearance with TS/SCI eligibility, strong SQL and Python, experience with Spark, Kafka, cloud platforms, and data integration.
SQL, Python, Apache Spark, Kafka, Databricks, Palantir Ontology, Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform, Maven Smart Systems, RESTful web services
1w
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Application Developer II
St. Louis, Missouri, United States
OnsiteFull Time
3+ YOE3+ years developing integrations and applications using iPaaS (Boomi/Mulesoft/Snaplogic), SQL, JSON/XML, modern stacks (.NET,C#/Node.js/TypeScript/Python/Ruby), DevSecOps practices and cloud platforms (AWS/Azure).
Boomi, Mulesoft, Snaplogic, SQL, JSON, XML, Palantir, .NET 6+, C#, Node.js, TypeScript, Python, Ruby, Ruby on Rails, Sinatra, ActiveRecord, CI/CD, DAST, SAST, SCA, Checkmarx, OWASP, GitHub, Snyk, Terrascan, Terraform, SFTP, PGP, AWS, Azure, Microsoft Office 365
6d
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Application Developer II
St. Louis, Missouri, United States
OnsiteFull Time
3+ YOE3+ years experience with enterprise iPaaS (Boomi/Mulesoft/Snaplogic), strong SQL and API integration skills, JSON/XML knowledge, application development on modern stacks (.NET6+/C#, Node.js/TypeScript, Python, Ruby), DevSecOps familiarity, cloud and container experience, Agile.
Boomi, Mulesoft, Snaplogic, Palantir, .NET 6+, C#, Node.js, TypeScript, Python, Ruby, Ruby on Rails, Sinatra, ActiveRecord, SQL, JSON, XML, CI/CD, DAST, SAST, SCA, Checkmarx, OWASP, GitHub, Snyk, Terrasan, Terraform, SFTP, PGP, AWS, Azure, Microsoft Office 365
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