33 software integration engineer jobs at 20 companies in Litchfield, IL
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Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yrHybridFull Time
First Bank: A family-owned bank providing financial solutions to businesses and individuals.
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
Systems Integration Engineer (Experienced or Lead)
Hazelwood or Saint Charles or Berkeley
$112k-$185k/yrOnsiteFull Time
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
Bachelor's in engineering or related field, systems engineering/integration experience, hardware/software integration experience, familiarity with Windows/Linux and scripting, active U.S. Secret security clearance and U.S. citizenship required.
Systems Integration Engineer (Experienced or Lead)
Hazelwood or Saint Charles or Berkeley
$112k-$185k/yrOnsiteFull Time
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
Bachelor's in a STEM field, systems engineering and system-integration experience, familiarity with hardware/software integration, operating systems (Windows/Linux), scripting, and ability to support buildup, integration, testing and troubleshooting. Active U.S. Secret clearance and U.S. citizenship required.
Peraton: Provides advanced technology and mission support for government agencies.
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.
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
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
AmerenNYSE: AEE: Generates and distributes electric and natural gas utility services.
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
Esri: Developing software for digital mapping and spatial data analysis.
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.
Principle Architect - Software/ AI Native Engineer
St. Louis, Missouri, United States
$140k-$170k/yrOnsiteFull Time
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
12+ YOE12+ years experience designing cloud-native software and AI-native platforms; strong AWS knowledge; experience with AI platforms, developer platforms, API integration and AI governance.
Model Context Protocol (MCP), GitHub Copilot, Claude Code CLI, AI Foundry, Bedrock, OpenAI, Anthropic, LLM integrations, Agentic systems, AI orchestration frameworks, AWS
Precise Software Solutions: A technology services delivering secure digital platforms, infrastructure, and operational IT services to government organizations.
4+ YOE4+ years STARLIMS configuration, scripting, upgrade, reporting and integration experience; ability to obtain FDA Public Trust; experience with QBE reporting and SciNote integration; validation and FDA security compliance experience.
Syms Strategic Group: Provides IT and professional services to federal government agencies.
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
KNOWiNK: Provider of digital poll book and election management software.
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.
McCarthy Holdings: National construction specializing in commercial and industrial projects.
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).
McCarthy Building Companies: Performs commercial construction and infrastructure development projects.
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.
LaunchCode: Nonprofit providing free tech education and job placement services.
3+ YOEAssociate's degree + 3+ years related experience (or 5+ years), PL-200 required, hands-on Microsoft Power Apps/Power Automate/Dataverse experience, ALM/DevOps familiarity (Azure DevOps), integration with SharePoint/SQL, strong communication and problem solving.
Microsoft Power Apps, Microsoft Power Automate, Microsoft Dataverse, Azure DevOps, Microsoft ALM Accelerator, Microsoft SharePoint, SQL Server, Microsoft Power BI, Microsoft Fabric, OneLake, Microsoft 365, Azure Functions, REST APIs
Charlotte or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$61-$71/hrOnsiteFull Time
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOEMinimum 5 years SAP BTP integration experience with Advanced Event Mesh and API Management; knowledge of event-driven architecture, messaging systems (Solace, IBM MQ), SAP Integration Suite, REST APIs, JSON/XML, and Java/Node.js. HS diploma/GED required.
SAP BTP, Advanced Event Mesh (AEM), API Management, Event-Driven architecture (EDA), Solace, IBM MQ, SAP Integration Suite, AEM Core Concepts, BTP Administration, REST APIs, JSON, XML, Java, Node.js
Atlanta or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Dallas or Baltimore or Rochester or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or San Jose or San Juan or Seattle or Spartanburg or Albany or Stamford or Tampa or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Fort Worth or Greensboro or Hartford or Houston or Grand Rapids or Indianapolis or Irvine or Jacksonville or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Melville or Miami or Milwaukee or Minneapolis or Montpelier or Nashville or New Orleans or United States or New York City or Oklahoma City or Orlando or Philadelphia or Phoenix or Pittsburgh or Portland
$77k-$202k/yrHybridFull Time
PwC: Providing audit, tax, and management consulting services to businesses.
3+ YOEBachelor's in a quantitative field, 3+ years developing AI/ML systems or integrating AI into software, experience with Oracle data/analytics tools, Docker/Kubernetes, CI/CD, vector DBs and model fine-tuning; strong critical thinking and client skills.
CACINYSE: CACI: Provides information technology and professional services to government clients.
4+ YOE4+ years systems integration/engineering experience, ability to deploy and troubleshoot Linux-based software, working knowledge of APIs, databases, networking; TS/SCI clearance with polygraph required.