42 application integration engineer jobs at 34 companies in Ashburn, IL
3w
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Senior Integration & Application Development Engineer
Rosemont, Illinois, United States
$123k-$153k/yr OnsiteFull Time
4+ YOE4+ years middleware and integration experience (Oracle SOA, ODI, webMethods), API implementation, Java and Python development, Linux scripting, database support; Bachelor's or HS with extensive experience.
Oracle SOA Suite, Oracle Data Integrator (ODI), webMethods Integration Server, Manhattan IFEE Integration Framework, Weblogic, Oracle Database, Java, Python, Linux Shell Scripting
1d
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Principal Application Engineer
Chicago, Illinois, United States
$139k-$198k/yr OnsiteFull Time
15+ YOEBachelor's degree in engineering, mathematics, or computer science; 15+ years in railroad operations, locomotive manufacturing, or rail automation; systems engineering, requirements management, integration, and technical leadership experience.
IBM ELM, DOORS, DOORS Next
1mo
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Application Engineer
Hoffman Estates or St. Louis
OnsiteFull Time
Experience in motion control, motor drives, system integration, PLC programming, and customer-facing technical support; familiarity with industrial communication protocols and ROS; bachelor's degree or technical degree preferred.
CANopen, EtherCAT, PROFINET, EtherNet/IP, PLC, ROS (Robot Operating System), SolidWorks
2mo
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Integration Support Engineer
Chicago, Illinois, United States
$90k-$110k/yr RemoteFull Time
3+ YOEBachelor's in CS/IT or equivalent, 3+ years integration/EDI or application support experience, strong EDI (X12, EDIFACT), REST/SOAP APIs, XML/CSV/JSON, integration platforms, troubleshooting and communication skills.
EDI, X12, EDIFACT, REST, SOAP, XML, CSV, JSON, MuleSoft, Dell Boomi, IBM Sterling, Cleo, SAP, Oracle, Microsoft Dynamics, NetSuite, MQ, Kafka, SQL
2w
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Software/Integration Engineer
Atlanta or Auburn Hills or Lisle or Plano or Wichita
$100k-$130k/yr HybridFull Time
Experience supporting enterprise HCM configuration and application development, gathering requirements, implementing features, troubleshooting systems, and translating technical concepts for nontechnical audiences.
Infor GHR, Infor Spreadsheet Designer (ISD), Mingle Homepage, Async Administration, Replication Sets, DataLake, HCM, HCM security models, GHR Security
2mo
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Senior Integration & Applications Developer
Itasca, Illinois, United States
$125k/yr OnsiteFull Time
15+ YOE15+ years in logistics/transportation; strong Microsoft SQL Server and T-SQL skills; experience with EDI (X12, EDIFACT), Altova tools, .NET/ASP.NET, JavaScript/TypeScript, and integration transports (MQ, AS2, SFTP).
Microsoft SQL Server, T-SQL, SSIS, MapForce, XMLSpy, StyleVision, Altova Server, .NET, .NET Core, ASP.NET, JavaScript, TypeScript, RESTful services, X12, EDIFACT, MQ, AS2, SFTP, XML, JSON, Cargowise, TMS, WMS, EDI VANs
4w
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Junior Application Security Engineer
North Chicago, Illinois, United States
$85k-$162k/yr HybridFull Time
4+ YOEBachelor's+5yrs or Master's+4yrs experience in application security and software development; experience with SAST/DAST/IAST/SCA, secure coding, CI/CD integration, Java/Node.js, and supporting developers.
SAST, DAST, IAST, SCA, Snyk, Endor Labs, CI/CD, Cloud Security Posture Management (CSPM), Python, Java, Node.js
1mo
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Application Developer III
Lake Elmo or Chicago or Evansville
$98k-$199k/yr OnsiteFull Time
5+ YOE2+ MgmtBachelor's degree or equivalent experience;5+ years configuring enterprise financial software (Abrigo/Sageworks);SQL and API integration experience;2+ years people leadership preferred;knowledge of commercial lending, credit, and CECL.
Abrigo, Sageworks, Banker's Toolbox, MST, SQL, API
3w
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IT Systems Engineer Sr - Application Security
Chicago, Illinois, United States
$94k-$154k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience; 3–7+ years in application security, cybersecurity, or enterprise application support; expertise in application security controls, vulnerability management, IAM, OWASP, and enterprise integrations.
Qualys, Qualys WAS, Metasploit, SAST, DAST, WAF, OWASP Top 10, CIS Controls and Benchmarks, SSO, OAuth
1mo
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Staff Security Engineer, Application Security
Chicago or California or Colorado or Florida or Georgia or Illinois or Indiana or Minnesota or Missouri or Montana or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or South Carolina or Texas or Utah or Vermont or Virginia or Washington or Washington or Wisconsin
$210k-$260k/yr HybridFull Time
7+ YOE7+ years in application/product/security engineering; hands-on threat modeling, vulnerability management, secure design, CI/CD integration, automation using Python/Go; experience with cloud-native AWS/GCP environments.
AWS, GCP, Python, Go, SAST, SCA, DAST, CI/CD, AI/LLMs
3w
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Systems Integration Contractor (Onsite)
Chicago, Illinois, United States
$150-$160/hr OnsiteContract
3+ YOEHands-on systems integration experience, infrastructure engineering, data migration, enterprise application integration, gap analysis, and collaboration with technical and business teams; 3+ years WMS experience; strong communication and problem-solving.
Warehouse Management System (WMS)
2d
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Sr External Web Application & API Security Engineer
Chicago, Illinois, United States
$138k-$173k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent experience; 5+ years security engineering, including 3+ years hands-on API security. Requires WAF/API platforms, cloud, security telemetry, scripting, and SIEM/SOAR integrations.
REST, GraphQL, SOAP, gRPC, HTTP, TLS, JSON, OAuth 2.0, OpenID Connect, JWT, AWS, Microsoft Azure, Google Cloud Platform, Terraform, Akamai API Security, Akamai App & API Protector, OpenAPI, SIEM, SOAR, CI/CD, DevSecOps, WAF
1mo
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.NET Developer (Web Apps & APIs) – ERP Integration
Chicago, Illinois, United States
$70k-$85k/yr OnsiteFull Time
Strong C# and .NET/.NET Core experience, building REST APIs and web applications, familiarity with SQL Server and Git, ERP integration experience (Dynamics 365 Business Central) preferred.
C#, .NET, .NET Core, SQL Server, Git, Microsoft Dynamics 365 Business Central, Azure, React, Angular, OAuth, JWT, CI/CD
3w
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Engineer/Principal Engineer Systems Test (AHT)
Rolling Meadows, Illinois, United States
$80k-$148k/yr OnsiteFull Time
4+ YOEBachelor's degree plus 4–5 years related experience, or applicable master's/PhD. Active Top Secret clearance required, with ability to obtain SCI access. Systems integration and test experience preferred.
TEAMMSS, signal generators, spectral analyzers
2w
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Consultant Intern 2027 – Enterprise Application Integration (EAI)
Chicago, Illinois, United States
$49k-$89k/yr OnsiteInternship, Temporary
Pursuing a degree in business, information systems, computer science, engineering, or a related field; strong analytical, problem-solving, communication, and presentation skills. High school diploma/GED required.
JavaScript, HTML, XML, SQL, Azure, AWS, Copilot, ChatGPT, APIs
5d
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Business Systems Engineer - GUS
Lake Forest, Illinois, United States
$109k-$158k/yr RemoteFull Time
2+ YOEBachelor’s degree in information systems, engineering, or related field plus 2 years of related experience. Requires enterprise systems configuration, SAP, API integrations, documentation, application development, and production troubleshooting.
SAP, REST, SOAP, API
1w
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Lead Software Engineer, API Integrations
Chicago, Illinois, United States
$150k-$170k/yr HybridFull Time
7+ YOERequires 7–10+ years designing, developing, implementing, and supporting applications, with expertise across .NET, C#, APIs, databases, Azure cloud, integrations, security, and enterprise architecture.
Microsoft .NET Framework, Microsoft .NET Core, C#, ASP.NET Core, Web API, JSON, Entity Framework, React, HTML5, CSS, JavaScript, jQuery, AJAX, VB.NET, SQL, PL/SQL, TypeScript, Python, Java, Node.js, ASP.NET, Web Forms, MVC, LINQ, SQL MI, SQL Server, SSIS, Databricks, Azure Data Factory, JIRA, GitHub, Jenkins, Azure DevOps, ASP.NET Core Identity, Entra ID, OAuth, OpenID, Microsoft Azure, Azure App Services, Azure Functions, Azure Storage, Azure Key Vault, Azure Monitor, Application Insights, Azure AD, Fenergo CLM, Salesforce CRM
1w
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Senior AI Engineer / Agent Development Lead
Lewisville or Oak Brook
$105k-$140k/yr HybridFull Time
7+ YOERequires 7+ years in software, AI, automation, data, cloud, or enterprise application engineering; 3+ years building AI-enabled solutions; strong programming, integration, deployment, and agentic AI skills.
Microsoft Copilot Studio, Azure AI Foundry, Semantic Kernel, AutoGen, LangGraph, LangChain, CrewAI, LlamaIndex, OpenAI Agents SDK, APIs, RAG, ML, GenAI, LLMs
1mo
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Website Engineer, Vice President
Chicago or New York City
$160k-$175k/yr HybridFull Time
8+ YOE8+ years building large web applications; strong React experience, WordPress integration, Webpack, Azure, EMR? (EMR not mentioned)
React, WordPress, Webpack, Azure, C#, Angular, Figma, Jira, Cursor, Vercel
1mo
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Senior Software Engineer, Integrations
Chicago or Woodridge
$115k-$210k/yr HybridFull Time
5+ YOE5+ years coding experience, B.S. in CS or equivalent, strong Python/C/C++/TypeScript skills, experience with firmware-to-application integrations, customer-facing troubleshooting, and building production software.
Python, C++, TypeScript, C
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