12 sr api developer jobs at 9 companies in Decatur, IL
2w
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Senior API Integration Developer
Bloomington, Illinois, United States
$113k-$156k/yr HybridFull Time
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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Sr. Software Engineer, Full-Stack (Factory Systems)
Palo Alto or Irvine or Normal
$147k-$184k/yr OnsiteFull Time
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
1mo
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Mainframe Developer (Chicago, IL, US)
Bloomington or Chicago
$90k-$97k/yr OnsiteFull Time
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
2w
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Lead GenAI Engineer (LLM)
Bloomington or Dunwoody or Richardson or Tempe
$81k-$142k/yr HybridFull Time
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
2mo
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(AI Experienced) Software Engineer/Lead Software Engineer
Bloomington or Dunwoody or Richardson or Tempe
$78k-$159k/yr HybridFull Time
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
2w
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Sr. Oracle Integration Cloud Engineer
Mattoon, Illinois, United States
$125k-$160k/yr OnsiteFull Time
3+ YOEMinimum 3 years integration engineering experience with 2+ years Oracle Integration Cloud (OIC); strong REST/SOAP/XML/JSON/XSD/XSLT and API skills; CI/CD, Git, scripting (Python/Bash/Groovy); retail integrations experience.
Oracle Integration Cloud, REST, SOAP, XML, JSON, XSD, XSLT, API, CI/CD, Git, Python, Bash, Groovy, Oracle SaaS, Oracle Retail, Xstore, SIOCS, RPM, ReSA, OCI, AirByte, Dell Boomi, ETL, API gateway
3d
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Lead Java Developer (Cloud)
Bloomington or Dunwoody or Richardson or Tempe
$81k-$142k/yr HybridFull Time
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
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
2w
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Lead GenAI Engineer (LLM)
Bloomington or Dunwoody or Richardson or Tempe
$81k-$142k/yr HybridFull Time
Experience building LLM applications, RAG pipelines, or agentic systems; cloud (AWS) architecture; Python or TypeScript; Git; prompt engineering and AI governance; API and CI/CD experience; strong communication and mentoring skills.
AWS, Amazon Bedrock, AgentCore, REST, FastAPI, Python, TypeScript, Git, GitHub Copilot, Promptfoo, RAGAS, MCP
3mo
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Staff Software Development Engineer
Illinois or Mississippi or Montana or North Carolina or Louisiana or Maine or Minnesota or Nebraska or New York or New Jersey or New Mexico or Nevada or Ohio or South Carolina or Texas or Rhode Island or South Dakota or Vermont or Tennessee or Virginia or Washington or Utah or Wisconsin or West Virginia or Oregon or Wyoming or Oklahoma or Pennsylvania or Colorado or Alabama or Arizona or California or Connecticut or District of Columbia or Iowa or Indiana or Kentucky or Massachusetts
$107k-$284k/yr RemoteFull Time
7+ YOE7+ years enterprise software delivery; 5+ years Java; 5+ years cloud; 5+ years microservices and APIs; 3+ years CI/CD; 3+ years Agile; 2+ years AI experience.
Java, AngularJS, JavaScript, Oracle, NoSQL, Cloud, CI/CD, Microservices
1mo
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Oracle Integration Cloud Developer
Champaign or United States
$125k-$140k/yr HybridFull Time
5+ YOEBachelor's degree, 5+ years integration experience with strong hands-on Oracle Integration Cloud expertise; experience with Oracle Cloud Applications, REST/SOAP, VBCS, Process Cloud, API management, Groovy/JavaScript, SQL, and security standards.
Oracle Integration Cloud (OIC), Oracle Cloud Applications, Visual Builder Cloud Service (VBCS), Process Cloud Service, Oracle API Platform, REST, SOAP, Groovy, JavaScript, SQL, OAuth2, SAML, Oracle Autonomous Database, Oracle Cloud Infrastructure (OCI), MuleSoft, CI/CD
4d
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MDM ETL Specialist / Developer
Springfield, Illinois, United States
RemoteFull Time
5+ YOE5+ years MDM/ETL experience, 3+ years Informatica MDM, strong SQL and Python skills, data quality and governance knowledge, and a bachelor’s degree in a related field.
Informatica MDM, Informatica, Teradata, SQL, Python, X12, EDI, XML, JSON, APIs, HL7/FHIR, Azure, ADF, Databricks, Snowflake, Data Lake