17 api engineer jobs at 8 companies in Peoria Heights, IL

3w
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Senior API Integration Developer
Bloomington, Illinois, United States
$113k-$156k/yr HybridFull Time
COUNTRY Financial
COUNTRY Financial: Provides insurance and financial services for individuals and businesses.
7+ YOE7+ years integration experience with MuleSoft and Azure APIM, strong API design, DataWeave/JSON/XML/SQL skills, CI/CD and production support experience.
Mule 4, Anypoint Platform, CloudHub 2.0, DataWeave, RAML, OpenAPI, REST, SOAP, JSON, XML, SQL, Azure API Management, Azure Functions, Logic Apps, App Services, Service Bus, Key Vault, CI/CD, Git, Splunk, Dynatrace, Azure Monitor, Application Insights, MuleSoft Anypoint Monitoring, MUnit, OAuth 2.0, OpenID Connect, JWT
1mo
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Senior Engineer
East Peoria, Illinois, United States
$120k-$140k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOEAdobe Workfront and Fusion developer with Adobe Workfront certification, strong API and Java skills, 7+ years Workfront experience, Bachelor's in Computer Science, ability to gather requirements and deliver workflows, templates and automation.
Adobe Workfront, Fusion, APIs, Java, Jira
3w
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Lead GenAI Engineer (LLM)
Bloomington or Dunwoody or Richardson or Tempe
$81k-$142k/yr HybridFull Time
State Farm
State Farm: Provider of auto, home, life, and health insurance.
Design and productionize LLM-powered applications, RAG/agent pipelines, cloud-native AI (AWS), API development (Python/TypeScript), prompt engineering, Git, and AI governance experience.
AWS Bedrock, AgentCore, REST, FastAPI, Promptfoo, RAGAS, GitHub Copilot, Python, TypeScript, Git, MCP
2d
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Lead Software Engineer - Search
Chicago or Peoria or Irving
$128k-$209k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction and mining equipment, engines, and gas turbines.
7+ YOE3+ MgmtRequires 7+ years in search engineering, 3+ years in technical leadership, search and AWS experience, programming proficiency, distributed systems expertise, and a computer science degree or equivalent experience.
Coveo, AWS, OpenSearch, NLP, Elastic Search, SOLR, Lucene, LucidWorks Fusion, Java, Python, Scala, Claude Code, ChatGPT, GitHub Copilot, DevOps, API, event streaming, Machine Learning, Azure, Google Cloud, GitHub
1mo
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Mainframe Developer (Chicago, IL, US)
Bloomington or Chicago
$90k-$97k/yr OnsiteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
10+ YOEStrong experience with mainframe technologies (PL/I, IMSDB, DB2, JCL, SORT), 10+ years preferred, health insurance domain experience, development and production support, SAS/REXX, debugging with IDB/IDZ, Git, Agile, Control-M, REST APIs/MQ.
PL/1, PL/I, IMSDB, DB2, JCL, SORT, COBOL, SAS, REXX, VSAM, IDB, IDZ, GIT, Git, CI/CD, Pipeline, Control-M, Webservices, REST API, JSON, MQ, AWS
2mo
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(AI Experienced) Software Engineer/Lead Software Engineer
Bloomington or Dunwoody or Richardson or Tempe
$78k-$159k/yr HybridFull Time
State Farm
State Farm: Provider of auto, home, life, and health insurance.
Experience with Python, Terraform, cloud architecture (AWS), DevSecOps, AI/GenAI/LLM integration, frontend (TypeScript/Angular) and backend (Go) development; strong data and ML workflow familiarity.
Python, Terraform, APIs, JSON, React, AWS, Lambda, EC2, SQS, S3, Cloudfront, API gateway, SNS, Sagemaker, TypeScript, Angular, Go
1w
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Lead Java Developer (Cloud)
Bloomington or Dunwoody or Richardson or Tempe
$81k-$142k/yr HybridFull Time
State Farm
State Farm: Provider of auto, home, life, and health insurance.
5+ YOE5+ years building secure enterprise Java software; API design; AWS and Terraform; CI/CD with Gitlab; Docker/Kubernetes; secure coding and documentation skills.
Java, AWS, Terraform, Gitlab, Docker, Kubernetes, REST
3mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
1w
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Sr. Software Engineer (.Net Full Stack)
Peoria or Tempe or Alpharetta or Peoria
$96k-$138k/yr HybridFull Time
RLI
RLINYSE: RLI: Specialty insurance carrier providing property, casualty, and surety solutions.
8+ YOE8+ years software development experience; strong C#/.NET full‑stack skills with Blazor, REST APIs, microservices; experience with MongoDB, Microsoft SQL Server, Kafka, Git, CI/CD and AI-assisted development tools.
C#, .NET, Blazor, Razor, HTML5, CSS3, JavaScript, MongoDB, Microsoft SQL Server, Kafka, Git, CI/CD, GitHub Copilot, ChatGPT, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG)
1mo
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Mainframe Developer (506286)
Bloomington or Chicago
$90k-$97k/yr OnsiteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
10+ YOEExtensive mainframe development and support experience (PL/I, IMSDB, DB2, JCL, SORT) with ~10+ years, health insurance domain knowledge, experience with COBOL, SAS, REXX, VSAM, Git, CI/CD, Control-M, REST/JSON and message queuing.
PL/1, PL/I, IMSDB, DB2, JCL, SORT, COBOL, SAS, REXX, VSAM, IDB, IDZ, GIT, CI/CD, Pipeline, Webservices, REST API, JSON, MQ, Control-M, AWS
1mo
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Sr. Software Engineer, Full-Stack (Factory Systems)
Palo Alto or Irvine or Normal
$147k-$184k/yr OnsiteFull Time
Rivian and Volkswagen Group Technologies
Rivian and Volkswagen Group Technologies: A joint venture developing software, connectivity, and cloud solutions for electric vehicles.
7+ YOE7+ years full-stack development; frontend with React and TypeScript; backend experience in Golang/Node.js/Python; RESTful API design; SQL/NoSQL; cloud (AWS/Azure/GCP); stream processing and message queues (Kafka, NATS, RabbitMQ); Agile experience.
React, TypeScript, HTML, CSS, Redux, Vuex, Jest, Cypress, Golang, Node.js, Python, SQL, NoSQL, AWS, Azure, GCP, Kafka, NATS, RabbitMQ, OPC UA, EthernetIP, Modbus, MQTT, Scrum, Kanban
1d
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Identity & Access Management (IAM) Software Engineer/Analyst
Bloomington or Richardson or Dunwoody or Tempe
$97k-$177k/yr HybridFull Time
State Farm
State Farm: Provider of auto, home, life, and health insurance.
Software development background with cloud, application development, CI/CD, security, API, source control, scripting, and identity and access management experience. Immediate U.S. work authorization required.
AWS, Azure, GCP, REACT, Angular, Spring Framework, Spring, Spring Boot, Git, GitLab, PERL, Python, PowerShell, Bash, NodeJS, JavaScript, TypeScript, Bruno, Insomnia, HashiCorp Vault, AWS Secrets Manager, Visual Studio, Intellij IDEA, Terraform, Agile, Product Management, DevOps, Viva Engage, ISO 27001, NIST, NYCRR 500
2d
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Engineering Manager – Caterpillar AI Assistant Integration
Mossville or Irving
$148k-$222k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction and mining equipment, engines, and gas turbines.
Bachelor's degree in a related field; experience leading software engineering organizations delivering AI products, cloud and edge solutions, large-scale programs, and distributed teams.
AWS, Azure, GCP, APIs, microservices, CI/CD, DevOps, RAG, LLMs
3d
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Engineering Manager – Caterpillar AI Assistant Integration
Irving or Mossville or Dallas or United States
$148k-$222k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
Bachelor's degree and experience leading software engineering organizations delivering AI products. Requires expertise in generative and agentic AI, cloud and edge computing, distributed teams, and large-scale technology programs.
Generative AI, Agentic AI, Foundation Models, LLMs, RAG, AWS, Azure, GCP, APIs, microservices, CI/CD, DevOps
1d
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Senior Digital Product Owner - Rental Data
Chicago or Peoria or Irving
$113k-$183k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
Product ownership experience with complex datasets, data models, SQL, data validation, integrations, analytics, and rental business processes; cross-functional stakeholder and engineering collaboration required.
SQL, Power BI, Tableau, Databricks, Snowflake, Azure Data Explorer, APIs
1d
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Senior Principal Architect, Applied AI Enterprise
Broomfield or Peoria or Irving
$173k-$259k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction and mining equipment, engines, and gas turbines.
Deep AI/ML architecture experience, agentic AI systems, cloud AI platforms, MLOps, data architecture, software engineering, requirements analysis, and cross-functional technical leadership.
Azure OpenAI Service, AWS Bedrock, Google Vertex AI, LangChain, LangGraph, Semantic Kernel, MLOps, LLMOps, RAG, API
2d
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Senior Principal Architect, Applied AI Enterprise
Irving or Peoria or Broomfield
$173k-$259k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
Deep experience designing production agentic AI systems, AI/ML architecture, cloud AI platforms, MLOps, data architecture, software engineering, enterprise integration, and cross-functional technical leadership.
Azure OpenAI Service, AWS Bedrock, Google Vertex AI, LangChain, LangGraph, Semantic Kernel, RAG, MLOps, LLMOps, API