46 software integration engineer jobs at 24 companies in Carlinville, IL
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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
2mo
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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
2mo
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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.
1mo
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Senior Software Engineer - GoLang and Python
St. Louis or Missouri or Minnesota or Nebraska or Kansas or Iowa
$88k-$157k/yr OnsiteFull Time
Extensive experience with Python and Go, API design (REST,gRPC), GKE/GCP, microservices, CI/CD, DevOps, IaC (Terraform), SQL, Git, observability, messaging (Kafka, Pub/Sub), and integrating AI/MCP into systems.
Python, GoLang, REST, gRPC, Google Kubernetes Engine, Google Cloud Platform, Model Context Protocol (MCP), Datadog, OpenTelemetry, SQL, Git, GitHub, GitLab, Terraform, Apache Kafka, Google Pubsub, AWS SNS/SQS, Istio
2mo
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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
3w
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Full Stack Software Developer (.NET/React)
St. Louis, Missouri, United States
HybridFull Time
3+ YOE3+ years .NET experience, Next.js/React front-end, Optimizely CMS and headless CMS integration, GraphQL/REST APIs, Azure CI/CD and DevOps, Git, CSS/SCSS, JavaScript/TypeScript, strong problem-solving and collaboration skills.
Optimizely CMS, Next.js, React, GraphQL, REST, SSR, SSG, ISR, Jira, Azure DevOps Boards, Azure CI/CD pipelines, Git, CSS, Sass, SCSS, JavaScript, TypeScript, Optimizely Graph, Aprimo DAM, Cloudflare CDN, Google Analytics
2w
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Missions Systems Software Engineer - Embedded (Associate, Experienced, Senior)
Berkeley, Missouri, United States
$99k-$217k/yr OnsiteFull Time
2+ YOE2+ years programming experience (Go, Java, C, C++, Rust, or Python); systems integration experience; strong verbal and written skills; ability to obtain U.S. security clearance.
Go, Java, C, C++, Rust, Python, Linux, VxWorks, Containers, Git, CI/CD, Cameo
3mo
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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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Director - Software/ AI Native Engineer
St. Louis, Missouri, United States
$175k-$180k/yr OnsiteFull Time
8+ YOEBachelor's degree required, 8+ years experience building cloud-native, microservices, DevOps/platform engineering with AWS; experience with AI-assisted development, LLM/agent integrations, and AI governance.
GitHub Copilot, Claude Code CLI, Model Context Protocol (MCP), AI Foundry, Bedrock, OpenAI, Anthropic, AWS
1w
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Generative AI/ML Intelligent Document Processing Engineer
Irving or Atlanta or Hopkins or San Francisco or Charlotte or New York City or Chicago or Gresham or Englewood or Cincinnati or Brookfield or Earth City
$105k-$124k/yr HybridFull Time
3+ YOE3+ years IDP experience, hands-on Tungsten/Kofax, strong C#/.NET and SQL skills, Azure and AI/ML integration experience, production software engineering and stakeholder collaboration skills.
Tungsten, Kofax, C#, .NET, SQL, Microsoft Azure, AI/ML, Generative AI, IBM DataCap, Retrieval-Augmented Generation (RAG), APIs
3w
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Full Stack Developer 729
St. Louis, Missouri, United States
OnsiteFull Time
Active TS/SCI clearance, experience in software development/system integration, familiarity with AWS services, CI/CD, containerization, GitLab, Agile, and customer-facing technical communication.
S3, Lambda, SQS, SNS, ECS, ECR, EKS, API Gateway, Cloudwatch, KMS, GitLab CI/CD, GitLab, Docker, Podman, Kubernetes, Harbor, CloudFormation, CDK, Terraform, Linux, JavaScript, React, Angular, HTML5, CSS3, Auroa, PostgreSQL/PostGIS, Oracle, Redis, Memcache, Elasticache, GDAL/OGR, GitLab
6d
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Test Engineer - Mission Software (Top Secret/SCI Clearance Required)
Herndon or Alexandria or Chantilly or Englewood or Gaithersburg or Saint Louis or Tucson
OnsiteFull Time
Software testing experience across enterprise application lifecycles, automated test development, Agile and CI/CD experience, testing methodologies, defect tracking, and DevSecOps integration. U.S. citizenship required.
Playwright, Cypress, JavaScript, Python, CI/CD, DevSecOps
1mo
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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
1w
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Senior DevOps Engineer
Springfield or St. Louis
$144k-$194k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
6+ YOERequires 6+ years of directly related experience, a bachelor's degree or equivalent experience, Linux, CI/CD, Argo CD, Kubernetes/OpenShift, infrastructure as code, Python, Bash, web networking, databases, security integration, and TS/SCI with CI polygraph.
Argo CD, GitLab CI/CD, Linux, Jenkins, CircleCI, OIDC, OAuth, Auth2, GitOps, Kubernetes, OpenShift, AWS, Terraform, CloudFormation, AWS CDK, Ansible, Chef, Puppet, SQL, Python, BASH, Elasticsearch, Prometheus, Thanos, Alloy, Loki, Mimir, Tempo, Grafana, Nginx, Traefik, Apache HTTP Server, HAProxy, Envoy
1mo
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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
2w
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Lead Developer, Internal Core Apps (Maximo)
Saint Louis or Birmingham
HybridFull Time
7+ YOERequires 7+ years of Maximo development, 5+ years of automation scripting and leadership, SQL and integration experience, and strong analytical skills. High school diploma required; bachelor's degree preferred.
Maximo Asset Management, JavaScript, Jython, Python, Web Services, REST, SOAP, XML, SQL Server, SQL, IBM WebSphere, E-Business Suite, Fusion Middleware, CC&B, Click
1mo
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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
2w
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Lead Developer, Internal Core Apps (Maximo)
Saint Louis or Birmingham
HybridFull Time
7+ YOE7+ years Maximo development, automation scripting (JavaScript, Jython, Python), Maximo upgrades/implementations, integrations (REST/SOAP, flat files, XML), SQL/SQL Server, IBM WebSphere, strong analytical and Agile experience.
Maximo, JavaScript, Jython, Python, Web Services (REST and SOAP), Flat files, XML, Interface Tables, SQL Server, SQL, IBM WebSphere
1mo
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BI ETL Developer III (Multiple Openings)
Maryland Heights, Missouri, United States
HybridFull Time
7+ YOEBachelor's degree and 7 years of SQL data warehouse and data integration experience; 5 years validating data with SQL; 1 year each in cable domain and MicroStrategy.
SQL, Teradata, Oracle, Ab Initio, MicroStrategy
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