90 sr api developer jobs at 47 companies in Belleville, IL
2mo
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API Engineer
Scott Air Force Base, Illinois, United States
$87k-$198k/yr HybridFull Time
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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Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yr HybridFull Time
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
1w
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Senior API Management Engineer
Springfield or St. Louis
$170k-$190k/yr OnsiteFull Time
5+ YOETS/SCI clearance, Bachelor’s in IT or related, 5+ years IT experience with Kong Enterprise, AWS, Linux, API management, DevOps practices, and leadership/mentoring skills.
Kong Enterprise, AWS, RedHat, CentOS, GitLab CI, Nexus
17h
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Senior API Platform Engineer (Apigee X/Apigee Hybrid)
Saint Louis or United States
$82k-$178k/yr OnsiteFull Time
5+ YOERequires 5+ years architecting API solutions, 2+ years delivering Apigee solutions, deep Apigee X/Hybrid expertise, GCP, API management, microservices, security, and enterprise production experience.
Apigee, Apigee X, Apigee Hybrid, Google Cloud Platform (GCP), Microservices, Istio, Docker, Kubernetes, OAuth2, SSO, OpenID Connect, JWT, Okta, Active Directory (AD), Azure Active Directory, Apigee Portal, Apigee Edge, Drupal, Node.js, JavaScript, Jenkins, Mulesoft, Data Power, Boomi, AWS, Microsoft Azure, AI tools, CI/CD, TCP, TLS, SSH
3w
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Senior API Management Engineer - Kong Enterprise Deployment
Springfield or St. Louis
$123k-$167k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
7+ YOE7+ years IT experience with API management, cloud operations, Kong Enterprise, OpenShift, AWS, Linux; bachelor’s degree in IT/CS; Top Secret/SCI clearance required; US citizenship.
Kong Gateway, Red Hat OpenShift, AWS, Linux, GitLab CI, Nexus, Habor
3w
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Senior API Management Engineer - Kong Enterprise Deployment
Springfield or St. Louis
$123k-$167k/yr OnsiteFull Time
7+ YOEBachelor's in IT or CS, 7+ years IT experience with API management and cloud operations, US citizenship, current Top Secret/SCI clearance, expertise with Kong and OpenShift, AWS and Linux experience.
Kong Gateway, Red Hat OpenShift, AWS, RedHat, Linux, GitLab CI, Nexus, Habor
4d
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Senior API Management Engineer-Kong Enterprise Deployment
Springfield or St. Louis
$148k-$176k/yr OnsiteFull Time
7+ YOEActive TS/SCI clearance with CI poly eligibility, Bachelor's degree or equivalent,7+ years IT experience with API management, cloud operations, Kong, AWS, OpenShift, Linux, and DevOps tooling.
Kong, AWS, OpenShift, RedHat, Linux, GitLab CI, Nexus, Habor
1d
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Senior API Management Engineer - Kong Enterprise Deployment
Springfield or St. Louis
OnsiteContract
7+ YOEBachelor's degree in IT, computer science, or related technical field; 7+ years of IT experience; Kong Enterprise, AWS, Linux, DevOps, Agile/Scrum, CI tools, and TS/SCI clearance required.
Kong, AWS, Linux, RedHat, CentOS, DevOps, Agile, Scrum, GitLab CI, Nexus
3w
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Engineer III - API Office
Tempe or St. Louis
HybridFull Time
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
1w
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Director, eCommerce Syndicated API Platforms
Stamford or St. Louis or Greenwood Village
HybridFull Time
10+ YOE3+ MgmtBachelor's degree or equivalent,10+ years in technical program delivery or API platforms,9+ years partner enablement,API strategy and integrations,leadership in launch planning and stakeholder alignment,strong API and developer experience skills.
REST APIs, API gateway, cloud-based platforms
1mo
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Sr. Engineer, Software - Archimedes
St. Louis or Brentwood or Alaska or Arizona or Arkansas or California or Connecticut or Delaware or Hawaii or Idaho or Louisiana or Maine or Massachusetts or Michigan or Mississippi or Montana or Nebraska or Nevada or New Mexico or New York or North Carolina or North Dakota or Oregon or Rhode Island or South Carolina or South Dakota or Texas or Utah or Vermont or Washington or West Virginia or Wyoming or United States
HybridFull Time
8+ YOEBachelor's in CS or related; 8+ years software engineering experience (5+ years with C#, .NET, React); experience with cloud-native, APIs, microservices, CI/CD, Git, Azure; technical leadership and mentoring experience.
C#, .NET, ASP.NET Core, React, TypeScript, JavaScript, REST APIs, GraphQL, Webhooks, API Management, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure Container Apps, Microsoft Azure Kubernetes Service (AKS), Microsoft Azure Storage, Microsoft Azure Databricks, Microsoft Azure Data Lake Storage Gen2, Microsoft Azure Synapse Analytics, Microsoft SQL Server, PostgreSQL, Microsoft Azure DevOps, GitHub Actions, CI/CD, Infrastructure as Code, Retrieval-Augmented Generation (RAG), Microsoft Azure OpenAI, Microsoft Azure AI Services, Intelligent Automation, Agent-Based Solutions, OWASP, OAuth2, OpenID Connect, DevSecOps, Git, Azure Repos, GitHub, TFS, Jira, Unix/Linux shell scripting
1mo
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Senior Developer
Sunset Hills, Missouri, United States
RemoteFull Time
5+ YOE5+ years professional software development, strong SQL and relational DB skills, experience building system integrations (APIs/EDI), ability to work with legacy code, clear communication, and security awareness.
SQL, RPG, IBM i, IBM Power Systems, EDI, X12, REST, JSON, APIs, ERP, Microsoft Azure, AWS
3w
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Developer
St Louis, Missouri, United States
OnsiteFull Time
5+ YOE5+ years software development experience, proficiency in full-stack OOP (C#, Java), relational databases, HTML/CSS/JavaScript and React, Git, RESTful API development, and Agile methodologies.
C#, Java, SQL, PostgreSQL, HTML, CSS, JavaScript, React, RESTful API, Git, Scrum, Kanban, Azure, AWS, CI/CD, DevOps
3mo
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Sr. Android Engineer (Tulsa, OK, US, 74101)
Tulsa or Dallas or Houston or Kansas City or Lincoln or Little Rock or Memphis or Oklahoma City or Phoenix or Salt Lake City or San Antonio or Springfield or St. Louis
OnsiteFull Time
8+ YOE8+ years software engineering; 3-5 years building production Android apps with Kotlin and Jetpack Compose; strong API, CI/CD, testing experience.
Kotlin, Jetpack Compose, AWS, REST APIs, JUnit, Espresso, Mockito, Firebase, New Relic, CircleCI, Fastlane, GitHub Copilot, Claude
1w
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Sr Infrastructure Engineer
Iselin or Charlotte or Saint Louis
OnsiteFull Time
5+ YOE5+ years in infrastructure/network engineering with experience in B2B connectivity, managed file transfer, APIs, messaging, LAN/WAN/datacenter design, BGP/OSPF, Cisco Nexus/Arista, and enterprise integrations.
Managed File Transfer (MFT), Connect:Direct (NDM), Axway Secure Transport, API Gateway, Apigee, Cisco Nexus, Arista, BGP, OSPF
3w
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Sr. Solutions Engineer
Santa Clara or St. Louis or Bengaluru or London or Paris or Melbourne or Taipei or Tokyo or Arizona or California or Nevada or Utah
$178k-$253k/yr FieldFull Time
7+ YOE7+ years solutions/system engineering experience, strong customer-facing presentation skills, hands-on with Linux/MacOS/Windows, mobile OS, cloud platforms, networking and security integrations.
Linux, MacOS, Windows, Android, iOS, HSM, SAML/SSO, DLP, SCIM, SIEM, SOAR, EDR, SD-WAN, Active Directory, ADFS, Azure AD, AWS, Azure, GCP, Python, REST API, Web Proxy, NGFW
1mo
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Sr. Engineer - Oil & Gas
Lisle or St. Louis or Charlotte or Indianapolis or Greenwood Village
HybridFull Time
5+ YOEBS in engineering (ABET), 5-15 years oil/gas engineering experience, 3+ years project management, knowledge of DOT/API/ANSI/ASME standards, Microsoft Word/Excel/PowerPoint/Project proficiency, valid driver’s license, willing to travel.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Project
1d
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Software DEVELOPER
O'Fallon, Missouri, United States
$60k-$135k/yr OnsiteFull Time
5+ YOERequires 5–8 years of experience developing enterprise Java applications with Spring Boot, REST APIs, Angular, Node.js, microservices, cloud platforms, DevOps, and secure coding practices.
Java, Spring Boot, REST APIs, Angular, HTML, CSS, JavaScript, jQuery, Node.js, AWS, Azure, PCF, Kubernetes, DevOps, Splunk, CI/CD
1mo
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Sr Engineer (St. Louis)
St. Louis, Missouri, United States
$108k-$136k/yr OnsiteFull Time
7+ YOE7+ years software or platform engineering experience; strong Kubernetes/OpenShift, CI/CD, IaC, Linux, and scripting skills; experience with enterprise platforms (MongoDB, PostgreSQL, Redis, RabbitMQ, Apache Solr); bachelor's degree; U.S. work authorization required.
Red Hat OpenShift Container Platform, Kubernetes, Helm, MongoDB, PostgreSQL, Redis, RabbitMQ, Apache Solr, GitHub, Jenkins, Codefresh, Ansible, Terraform, Prometheus, Grafana, Shell, Python, Node.js, GitOps, YAML, APIs, Linux
3w
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Senior Python Developer
Fenton, Missouri, United States
OnsiteFull Time
5+ YOE5+ years software development experience with 3+ years Python; experience with RESTful APIs, databases, cloud platforms, testing, CI/CD, containerization, and mentoring.
Python 3.x, Django, Flask, FastAPI, RESTful APIs, PostgreSQL, MySQL, SQL Server, MongoDB, Redis, Git, GitHub Actions, Jenkins, Docker, Kubernetes, AWS, Azure, GCP, pytest, unittest, TensorFlow, PyTorch, scikit-learn, React, Vue.js, JavaScript