8,638 sr api developer jobs at 3,430 companies in United States
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API Developer
Pittsburgh or Cleveland or Dallas or Birmingham or Phoenix or Denver
OnsiteFull Time
8+ YOE8+ years Java/J2EE experience building RESTful APIs using Spring Boot and microservices; experience with DevOps, Kafka, IBM MQ, SQL/NoSQL and cloud platforms required.
Java, J2EE, Spring Boot, Microservices, REST API, Angular, XML, JSON, Swagger, Jenkins, uDeploy, GIT, Kafka, IBM MQ, SQL, No Sql, AWS, Azure, GitHub, CI/CD, React, JavaScript, HTML, CSS, JSON Web Token (JWT), UML, XPath
1mo
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Senior API Developer
Tacoma, Washington, United States
$100k-$160k/yr OnsiteFull Time
7+ YOE7+ years API development experience, strong API design and security knowledge, proficiency with Java/Python/JavaScript and frameworks, CI/CD and testing experience, DoD clearance preferred.
Java, Python, JavaScript, Spring, Flask, Node.js, OAuth 2.0, JWT
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
2w
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Sr Java API Developer - New York
New York, New York, United States
$40k-$140k/yr OnsiteFull Time
Photon: A technology employer building secure, scalable, and maintainable backend and API solutions.
5+ YOE5+ years Java backend experience, proficiency with Java 11/17, Spring ecosystem, RESTful APIs, relational and NoSQL databases, API security, CI/CD, and testing frameworks.
Java 11, Java 17, Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Hibernate, REST, OpenAPI/Swagger, JSON, GraphQL, PostgreSQL, MySQL, Oracle, MongoDB, Cassandra, Apache Kafka, RabbitMQ, Maven, Gradle, JUnit, Mockito, REST Assured, Jenkins, GitHub Actions, GitLab CI, Microsoft Azure DevOps, Docker, Kubernetes, Git, Redis, Hazelcast, Prometheus, Grafana, ELK Stack, Splunk
3w
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Senior API Developer
Maryland, United States
OnsiteFull Time
5+ YOE5+ years experience building REST APIs with Java, Spring Boot, Postgres SQL; experience with AWS, containers, CI/CD pipelines, and healthcare data (FHIR) preferred.
Java, Postgres SQL, Spring Boot, AWS, Argo/CD, EKS, Tekton, ReactJS, NextJS, FHIR
4w
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Java API Developer
Minneapolis, Minnesota, United States
$100k-$110k/yr OnsiteFull Time
8+ YOEExpertise in Java 8, Spring Boot, REST APIs and microservices; cloud (AWS/Azure/GCP); Kafka/RabbitMQ/ActiveMQ; RDBMS (DB2/Postgres); front-end (HTML5/React.JS/CSS); DevOps with Docker/Kubernetes and CI/CD tools.
Java 8, Spring Boot, REST API, AWS, Azure, Google cloud, Apache Kafka, AMQP, RabbitMQ, ActiveMQ, DB2, Postgres, HTML5, React.JS, CSS, NodeJS, webpack, JEST, Selenium, Cucumber, Apigee, TLS, MTLS, oAuth2, Docker, Kubernetes, Jenkins, Fortify, Sonar, blackduck
2mo
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Senior API Engineer (Python / AWS)
Fort Mill or Charlotte or Austin
$106k-$177k/yr HybridFull Time
7+ YOE7+ years in software/API/cloud development; Python API development; AWS Lambda/API Gateway; Terraform; CI/CD; production support.
Python, AWS, Terraform, OAuth2, JWT, IAM, Amazon API Gateway, AWS Lambda, CloudWatch, OpenTelemetry
2mo
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Senior API Engineer - Advisor I
Alpharetta or Omaha or Berkeley Heights
$90k-$158k/yr OnsiteFull Time
8+ YOE8+ years in Java/J2EE engineering, RESTful APIs, Spring, Azure, cloud–native services, CI/CD, DevSecOps, and cloud platforms; experience with relational/non-relational databases and messaging systems.
Java, J2EE, Spring, Spring Boot, REST API, Azure, OpenShift, PCF, Kafka, MQ, ESB, SQL, NoSQL, Splunk, CI/CD, DevSecOps
2w
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Principal Engineer API Platform
Minnesota or New York or Texas or Illinois
$144k-$288k/yr RemoteFull Time
10+ YOE3+ Mgmt10+ years software engineering with enterprise API design, API security (OAuth2/OIDC/mTLS), API gateways, cloud platforms, Java/Node.js, and experience shaping technical direction across teams.
OAuth 2.0, OIDC, mTLS, Apigee, Kong, Azure APIM, JavaScript, TypeScript, Node.js, React, Java, Spring Boot, GCP, AWS, Azure, GraphQL, Kafka, FHIR, HL7, MCP, CI/CD, LLM
1mo
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Senior Backend API Engineer
Linthicum, Maryland, United States
OnsiteFull Time
7+ YOEActive TS/SCI with polygraph required; 7+ years backend development experience with Python, RESTful APIs, Django/Flask, Docker, MariaDB/MongoDB; experience with Git, Jira, Confluence; strong troubleshooting and communication skills.
Python, Django, Flask, MariaDB, MongoDB, JSON, XML, Docker, Git, Jira, Confluence, AWS
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
1w
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Senior API / Microservices Developer
United States
$113k-$132k/yr RemoteFull Time
9+ YOE9+ years Java enterprise experience with Spring Boot, REST API design, JPA/Hibernate, relational DBs, unit testing, Git; must be US citizen and able to obtain EPA Public Trust.
Core Java (version 21), Spring Boot, Spring-data, JPA, Hibernate, Oracle, Junit, Mockito, Git, GitHub, Copilot, Bruno, Open-API, Swagger, Maven, Atlassian Confluence
2w
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Principal Engineer — Graph & API
Michigan, United States
$170k-$366k/yr RemoteFull Time
12+ YOEBachelor's in CS or related, 12+ years software engineering/architecture, enterprise API/Graph strategy, GraphQL, TypeScript, AWS experience, strong communication and leadership.
GraphQL, TypeScript, AWS, REST
3w
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Backend Java API Engineer
Phoenix, Arizona, United States
OnsiteContract
6+ YOE6+ years experience with Java 11+, Spring Boot, Hibernate, SOAP/REST APIs, relational and NoSQL databases, GCP, Docker, Kubernetes, and Kafka; strong communication and Agile experience.
Java 11, Spring Boot, Hibernate, SOAP Web Services, REST APIs, GCP, Docker, Kubernetes, Kafka, Ruby, Groovy
17h
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API and Authentication Developer (Remote Opportunity)
Tampa or United States
RemoteFull Time
Bachelor’s degree or equivalent experience; hands-on API management, API security, AWS API Gateway, identity technologies, Kubernetes, Linux, networking, certificates, SSL/TLS, and complex troubleshooting experience.
AWS API Gateway, Kubernetes, OpenAPI Specification, GitOps, Argo CD, Flux, NGINX, Envoy, Istio, Datadog, Splunk, Prometheus, Grafana, ELK, OpenSearch, OpenTelemetry, OWASP, Active Directory (AD), LDAP, JWT, Linux, TLS, mTLS, DNS, JSON
1mo
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Application / API Lifecycle Automation Developer
Herndon, Virginia, United States
$160k-$195k/yr RemoteFull Time
5+ YOE5+ years designing and delivering API lifecycle automation, developer portals, CI/CD integrations, Zero Trust API security, and observability with documented automation metrics.
AppDynamics, ELK, OpenTelemetry, Backstage, Stoplight, Kong Dev Portal, Apigee Developer Portal, Kong, Apigee, MuleSoft, Azure API Management (Azure APIM), AWS API Gateway, CI/CD
1mo
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API Security Engineer
Cambridge, Massachusetts, United States
$146k-$234k/yr HybridFull Time
5+ YOE5+ years cybersecurity or application/platform security experience with hands-on API security, threat modeling, API risk assessment, and collaboration with engineering and platform teams.
API gateways, service meshes, reverse proxies, AI Gateway
2w
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Senior Software Engineer, API & Integration
United States
$110k-$140k/yr RemoteFull Time
6+ YOE6+ years software development experience, deep Go proficiency, API design (REST/GraphQL), containerized workloads, Terraform, strong database and data-normalization skills, bachelor's degree or equivalent.
Go, REST, GraphQL, Docker, OAuth2/2.1, JWT, OpenAPI/Swagger, Terraform, PostgreSQL, SQL Server, Postman, Azure Service Bus, MuleSoft, Kafka, MQ, Kubernetes, CI/CD, PCI-DSS, SOC 2
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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API / Integration Engineer
United States
RemoteFull Time
6+ YOEActive Top Secret clearance (Tier 5), Bachelor's in CS/Systems Engineering, 6+ years in API/integration engineering, proficiency with REST, OAuth2/SAML/JWT, Git and CI/CD; CompTIA Security+ required.
REST, OAuth2, SAML, JWT, Git, GraphQL, AWS GovCloud, CI/CD
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