102 api developer jobs at 51 companies in Litchfield, IL

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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API Engineer
Scott Air Force Base, Illinois, United States
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Experienced backend/platform engineer designing, deploying, and operating enterprise API platforms; Java or Python; Docker, Helm, Kubernetes, GitOps; API gateways and cloud (AWS/Azure/GCP); Secret clearance; HS diploma or GED.
Java, Python, Apigee, Gravitee, Kong, AWS API Gateway, Mulesoft, Docker, Helm, Kubernetes, GitOps, HTTP, gRPC, WebSockets, AWS, Azure, GCP, Git, Jenkins, JIRA, Confluence, Nexus, Bitbucket, SQL, Node.js, Groovy, Scala, Spring Cloud, Spring Core, Spring Boot, Spring Data, Kafka, RabbitMQ
1mo
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API Engineer
Scott AFB, Illinois, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
Backend/platform engineering with Java or Python, experience operating API gateways (Apigee, Kong, Mulesoft, AWS API Gateway), DevOps (Docker, Helm, Kubernetes, GitOps), cloud (AWS/Azure/GCP), Git/Jenkins/JIRA, and eligible for Secret clearance; HS diploma/GED required.
Java, Python, Apigee, Gravitee, Kong, AWS API Gateway, Mulesoft, Docker, Helm, Kubernetes, GitOps, HTTP, gRPC, WebSockets, AWS, Azure, GCP, Git, Jenkins, JIRA, Confluence, Nexus, Bitbucket, SQL, Node.js, Groovy, Scala, Spring Cloud, Spring Core, Spring Boot, Spring Data, Kafka, RabbitMQ
1w
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API Engineer, Mid-Level
United States or Belleville
$100k-$150k/yr RemoteFull Time
MSM Technology
MSM Technology: Provides specialized IT infrastructure and cybersecurity services to federal agencies.
3+ YOEUS citizen with Secret clearance, HS diploma/GED, CompTIA Security+ and DOD 8570 IAT Level II, 3+ years backend/platform engineering with Java or Python, API platform and DevOps experience, and quarterly travel to Scott AFB.
Apigee, Gravitee, Kong, AWS API Gateway, Mulesoft, Docker, Helm, Kubernetes, GitOps, HTTP, gRPC, WebSockets, ZTNA, SDP, Java, Python, AWS, Azure, GCP, Git, Jenkins, JIRA, Confluence, Nexus, Bitbucket, Kafka, RabbitMQ, Node.js, Groovy, Scala, Spring Cloud, Spring Core, Spring-Boot, Spring Data
1mo
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Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yr HybridFull Time
First Bank
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
3w
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Senior Software Engineer - ServiceNow/Javascript/API
St. Louis or Brentwood or Richmond Heights or Clayton or Maplewood
HybridFull Time
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
3+ YOE3+ years software development, 2+ years ServiceNow and JavaScript experience, API scripting (REST/SOAP), shell scripting (SSH/PowerShell), US work authorization, reside in St. Louis area, security-minded.
ServiceNow, JavaScript, REST, SOAP, SSH, PowerShell, Agile, Scrum
1d
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Engineer III - API Office
Tempe or St. Louis
HybridFull Time
Edward Jones
Edward Jones: Offers investment management and financial planning through local branches.
5+ YOE5+ years building scalable APIs and integrations; proficiency with Java, Spring Boot, Python, Node.js, Docker, Kubernetes, Azure; experience with OpenAPI, OAuth2/OpenID Connect, GitHub Actions; strong API design and security skills.
Java, Spring Boot, Python, Node.js, Docker, Kubernetes, Microsoft Azure, OpenAPI Specification (OAS), OAuth 2.0, OpenID Connect, GitHub Actions, Rust, MuleSoft Anypoint Platform
3w
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Cloud & API Platforms Practice Lead (AVP)
St. Louis or Chicago or Boston or Houston or Dallas or Irvine or Minneapolis or Detroit or Alpharetta or New York City
$150k-$250k/yr OnsiteFull Time
Perficient
Perficient: Provides digital transformation and AI consulting for global enterprises.
10+ YOE5+ Mgmt10–15 years experience with 5+ years leading practices; expertise in Platform API and IBM Cloud solutions, hands-on consulting, GTM strategy, partner/channel relationships, AI delivery knowledge, and willingness to travel.
MuleSoft, Apigee, Boomi, Workato, TIBCO, Terraform, IBM Cloud
3mo
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Sr. Software Engineer
Hazelwood, Missouri, United States
$82k-$115k/yr HybridFull Time
bioMérieux
bioMérieuxEuronext Paris: BIM: Provides diagnostic solutions for infectious diseases and industrial microbiology.
7+ YOE7+ years full stack development with Java; AWS; API development; security/compliance; IaC; data pipelines; relational databases; strong collaboration.
Java, Angular, AWS, Terraform, CloudFormation, Docker, Kubernetes, Python, SQL
1mo
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Backend Software Developer
Springfield or Vienna or St. Louis
OnsiteFull Time
INCATech
INCATech: Geospatial software solutions provider focusing on GIS and enterprise data management.
2+ YOE2+ years backend development; Node.js, Python/Java; REST APIs; ArcGIS Enterprise; Docker/Kubernetes; on-site; Top Secret clearance.
Node.js, Python, Java, ArcGIS Enterprise, Docker, Kubernetes, REST APIs, PostgreSQL, PostGIS, SQL Server
4d
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Senior Application Developer
Denver or Springfield or Sterling or St. Louis
$75k-$158k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOEBachelor's in CS or related,8+ years software development experience,expert Java and/or Python,REST APIs,databases,CI/CD,GIT,TS/SCI clearance and polygraph willingness.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium, Kubernetes, AWS/C2S, Git, CI/CD
16h
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Software Developer 2 (Associate)
O'Fallon, Illinois, United States
HybridFull Time
UNCOMN
UNCOMN: A technology delivering secure software solutions for public and private sector clients.
2+ YOE2+ years software development experience, backend/REST API experience, Java and Azure familiarity, Agile/Jira experience, eligible for U.S. Secret clearance, strong communication and problem-solving skills.
Java, Microsoft Azure, RESTful APIs, Jira
1w
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Software Application Developer
Scott Air Force Base, Illinois, United States
$81k-$92k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
3+ YOEBachelor's degree, active U.S. Secret clearance, 3+ years software development experience, working knowledge of Java, front-end frameworks, Git, RESTful APIs, CI/CD and Agile practices.
Java, React, Angular, Git, Jenkins, GitLab CI, Azure DevOps, Docker, Kubernetes, AWS, Azure, GCP, RESTful APIs, MBSE
6d
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Application Developer II
St. Louis, Missouri, United States
OnsiteFull Time
McCarthy Building Companies
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.
Boomi, Mulesoft, Snaplogic, Palantir, .NET 6+, C#, Node.js, TypeScript, Python, Ruby, Ruby on Rails, Sinatra, ActiveRecord, SQL, JSON, XML, CI/CD, DAST, SAST, SCA, Checkmarx, OWASP, GitHub, Snyk, Terrasan, Terraform, SFTP, PGP, AWS, Azure, Microsoft Office 365
2d
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Java Full stack Developer
St. Louis, Missouri, United States
$80k-$117k/yr OnsiteFull Time
Infosys
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
Bachelor's degree or equivalent experience; strong Java full-stack development with Angular, Spring Boot, REST APIs; familiarity with microservices and CI/CD; strong communication and SDLC experience.
Java, Angular X, Spring Boot, REST APIs, Microservices, CI/CD
3mo
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Backend Developer SME
St. Louis, Missouri, United States
OnsiteFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
14+ YOEActive TS/SCI clearance; 14+ years backend development; cloud-native; DevSecOps; leadership; experience with Python/Java/JavaScript; GitLab CI/CD; scalable distributed systems; client engagement.
Python, Java, JavaScript, Node.js, AWS, GitLab CI/CD, Docker, Kubernetes, APIs, CI/CD, Serverless, Geospatial, PostGIS
2mo
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Full Stack Developer (Backend Emphasis)
Scott AFB, Illinois, United States
$110k-$150k/yr HybridFull Time
Agile Defense
Agile Defense: Provides IT modernization and cybersecurity for federal government agencies.
5+ YOESenior full stack developer with 5+ years in Java/.NET, AWS GovCloud, REST APIs; DoD/federal experience preferred; ability to obtain security clearance.
Java, .NET, AWS (GovCloud), Lambda, ECS, EKS, Fargate, API Gateway, RDS, S3, CloudWatch, IAM, SQL, Linux, Docker, OpenAPI, Jenkins, GitHub Actions, GitLab CI, Python, Bash
3d
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Full Stack Developer
St. Louis, Missouri, United States
$85k-$117k/yr RemoteFull Time
Syms Strategic Group
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
2mo
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PHP Developer
St. Louis, Missouri, United States
$111k-$150k/yr OnsiteFull Time
Federal Reserve System
Federal Reserve System: The central bank of the United States.
5+ YOE5+ years PHP, Go Lang, Laravel, Linux, SQL/NoSQL, JavaScript, Docker; AWS; RESTful APIs; CI/CD (GitLab); React.js; OWASP; 508 accessibility; US Citizenship or Green Card with 3 years residency.
PHP, Laravel, Go, Linux, SQL, NoSQL, Docker, React.js, AWS, GitLab, OWASP, Bootstrap, HTML, CSS, PostgreSQL, RESTful APIs
2mo
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Senior Software Engineer-Oracle EPM
St Louis, Missouri, United States
$105k-$204k/yr HybridFull Time
Ameren
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
1w
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Software Engineer IV – ERP Finance (Oracle/PLSQL)
Saint Louis, Missouri, United States
HybridFull Time
Charter Communications
Charter CommunicationsNASDAQ: CHTR: Provides broadband connectivity, cable, and mobile communication services.
2+ YOE2+ years Oracle and PL/SQL experience; ERP/financial systems development, software lifecycle knowledge, cloud/native and API familiarity, strong communication and problem-solving skills.
Oracle, PL/SQL, Java, Spring, API Gateway, AWS