22 sr api developer jobs at 16 companies in Roscoe, IL
2mo
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Android Developer Experience Lead
Holtsville or Lincolnshire or Austin or Kennesaw
$139k-$208k/yr HybridFull Time
10+ YOELead Android Developer Experience; 10+ years with Bachelor's or 7+ years with Advanced Degree; Android platform expertise; API/SDK design; Java and Kotlin proficiency.
Android Studio, Gradle, Java, Kotlin, APIs, SDKs
1mo
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Sr. Data Engineer
Madison, Wisconsin, United States
$101k-$172k/yr OnsiteFull Time
Bachelor's in data/computer field or HS+4yrs; expertise with Spark on Snowflake/Databricks, Python/Scala/SQL, ETL pipelines, database architecture, Big Data formats, cloud services, and Tableau.
Spark, Snowflake, Databricks, Python, Scala, SQL, Parquet, Avro, Delta Lake, AWS, SQS, S3, GitLab, JIRA, Confluence, REST API, Tableau, Model Context Protocol (MCP), Braze
6d
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Xformative - Fintech Software Engineer
Madison, Wisconsin, United States
RemoteFull Time
5+ YOE5+ years software development experience in payments, strong Node.js and TypeScript skills, API and backend engineering, AWS experience, knowledge of payment compliance (PCI-DSS/SOC2), bachelor\u0002s degree preferred.
Node.js, TypeScript, AWS, AWS CloudWatch, PCI-DSS, SOC2
1mo
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Senior Java Engineer (Hybrid)
Madison or Boston
$99k-$167k/yr HybridFull Time
5+ YOE5+ years AWS-backed Java development experience building Spring Boot and RESTful APIs; proficiency with Python and SQL; experience with integration, SDLC, testing, and cloud services; insurance experience preferred; ability to travel up to 10%.
Java, Spring Boot, RESTful API, Python, SQL, AWS, Microsoft Copilot, Claude Code
3w
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Artificial Intelligence Engineer III
Madison or Kingwood
HybridFull Time
5+ YOEBachelor's or equivalent experience, 5+ years in software/ML/AI engineering, advanced Python and API skills, experience with large-scale data platforms and LLM systems, familiarity with AI orchestration frameworks, strong communication.
Python, APIs, Snowflake, Databricks, Amazon Redshift, Microsoft Synapse, LangChain, LangGraph, LlamaIndex, Semantic Kernel
2mo
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Senior Backend Software Engineer, Solve Voice
Austin or Madison or San Francisco
$145k-$217k/yr HybridFull Time
3+ YOE3+ years backend engineering; real-time systems (WebRTC/SIP); Python or equivalent; API design; async architectures; frontend basics.
Python, WebRTC, WebSockets, SIP, APIs, Async frameworks
1mo
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Senior Staff Engineer
Madison, Wisconsin, United States
$180k-$220k/yr HybridFull Time
10+ YOE10+ years professional software engineering experience; deep TypeScript/full-stack expertise; proven architecture, API, scalability, and reliability experience; strong communication and mentorship skills.
TypeScript, React, Next.js, Node.js, PostgreSQL, Algolia, AWS, GCP, Vercel, Cloudflare
3mo
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Senior Software Engineer
Madison, Wisconsin, United States
$100k-$144k/yr RemoteFull Time
6+ YOEExpertise in PHP, Laravel, Vue.js; 10+ years with PHP frameworks; 6+ years with Vue; API design; AWS; Git; SaaS experience; testable code with Pest/PHPUnit; agile team experience.
Laravel, Vue.js, Tailwind CSS, PHP, Pest, PHPUnit, AWS, NodeJS
2mo
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Software Developer 2
Monroe, Wisconsin, United States
OnsiteFull Time
5+ YOEBS or equivalent, 5+ years software development experience, 3+ years with .NET Core/C#, REST APIs, microservices, MySQL/Dynamo, Azure DevOps, Git, AWS; strong problem solving, Agile collaboration, and mentoring ability.
.NET Core, C#, RESTful API, Python, microservices, MySQL, Dynamo, Azure DevOps, Azure Pipelines, Git, AWS, CI/CD
2mo
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Piping Engineer
Madison, Wisconsin, United States
OnsiteFull Time
5+ YOEBachelor's in Mechanical Engineering, 5+ years piping design experience in industrial/process sectors, proficiency in 2D/3D CAD, knowledge of piping codes (ASME B31.3, API), valid U.S. driver's license.
2D CAD, 3D CAD
1w
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Microsoft Word Add-In Developer (Contract)
Madison, Wisconsin, United States
OnsiteContract
Experience building and publishing Word add-ins with Office.js/Word JavaScript API, production-level TypeScript and React, REST API integration, OAuth2/MSAL authentication, cross-platform Word compatibility, and strong testing/documentation practices.
Office.js, Word JavaScript API, TypeScript, React, Microsoft Authentication Library (MSAL), OAuth 2.0, Fluent UI, RESTful APIs, Microsoft 365, Microsoft marketplace
3mo
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Senior Staff Quality Engineer
Madison or Austin
OnsiteFull Time
5+ YOE5+ years QA experience in agile environments; strong automation skills with Python/PyTest; experience with API automation, test frameworks (keyword-driven, POM), Google Cloud, Elastic Stack, and web technologies; coaching and mentoring experience.
Python, PyTest, Robot Framework, Playwright, Javascript, React, Google Cloud, Elastic Stack
1mo
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Senior Electrical Engineer -Power (Madison, WI, US, 53706)
Duluth or Minneapolis or Saint Paul or Omaha or Nashville or Pittsburgh or Houston or Traverse City or Madison
$120k-$170k/yr HybridFull Time
10+ YOEBachelor's in Electrical Engineering, PE license, 10+ years electrical engineering experience, technical leadership, experience with SKM or ETAP, strong knowledge of NEC/NFPA/IEEE/API/AGA and industrial power systems.
SKM, ETAP
1mo
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MuleSoft Architect
Charleston or Las Vegas or Orlando or Annapolis or Portland or Boston or Huntsville or Dayton or Atlanta or Colorado Springs or Jericho or Dover or Albuquerque or Frankfort or Denver or New York City or Groton or Salt Lake City or Fort Leavenworth or Jersey City or Omaha or Bismarck or Sacramento or New Orleans or Indianapolis or Helena or Des Moines or Jackson or Hanover or Austin or Boise or Chattanooga or Tucson or Fayetteville or Chicago or St. Louis or Lansing or Pittsburgh or Philadelphia or Augusta or Oklahoma City or Brooklyn Park or Pringle or McLean or Newport or Cheyenne or Martinsburg or Cleveland or Little Rock or Madison or Albany or Seattle or Washington
$99k-$225k/yr OnsiteFull Time
7+ YOE7+ years in data integration or API development, MuleSoft and Salesforce integration experience, familiarity with API-led architecture and integration governance, experience using AI tools for MuleSoft, ability to obtain Public Trust; HS diploma/GED required; Bachelor's preferred.
MuleSoft, Salesforce, Pega, Appian
3w
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Senior Technical Consultant
Madison, Wisconsin, United States
$100k-$200k/yr OnsiteFull Time
3+ YOE3+ years software development or technical consulting, BS/BA in related field, experience with Appian platform, SQL, APIs, EMR not required; strong communication, mentoring, and agile experience.
Appian, SQL, REST, SOAP, JDBC, Amazon Web Services (AWS), Google Cloud, Elastic Containers
1mo
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Senior Solution Architect
Madison, Wisconsin, United States
$94k-$128k/yr OnsiteFull Time
5+ YOE5+ years IT experience including 3 years software development/application architecture and 3 years solution architecture; Bachelor's in IT/CS preferred; experience with integration architecture, API integration, cloud, containerization, TOGAF, and architecture leadership.
Workato, Docker, K8s, TOGAF