17,439 api engineer jobs at 5,727 companies in United States
API Systems Engineer
Vienna, Virginia, United States
$96k-$123k/yr HybridFull Time
Expert Java, JEE, web services, APIs, Spring Boot, cloud architecture, API security, and Agile expertise; strong troubleshooting and communication skills; bachelor's degree or equivalent experience.
Java, JEE, Web Services, APIs, SOAP Services, RESTful APIs, JSON, Spring Boot, Istio, Service Mesh, Spring Framework, Open API Specification, RAML, MCP, A2A, LLMs, Azure, AWS, GCP, Pivotal, Tanzu, Tanzu Kubernetes Grid, k8s, OAuth, SAML, JWT, OpenID Connect, Agile, SAFE, Salesforce, Oracle HCM, PeopleSoft, CRM, Dynamics, Azure DevOps
API Engineer
Scott Air Force Base, Illinois, United States
$87k-$198k/yr OnsiteFull Time
Experience designing and operating scalable API platforms, back-end engineering with Java or Python, DevOps and Kubernetes experience, familiarity with cloud providers, ability to obtain Security+ and hold Secret clearance.
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
API Engineer
United States or Exeter
RemoteFull Time
Bachelor's degree in Computer Science or related field; experience with API integrations, RESTful/SOAP APIs, integration tools (Mulesoft, Apigee, Zapier, Postman), programming (Python, Java, JavaScript, C#), cloud platforms (AWS, Azure, Google Cloud), and microservices.
Mulesoft, Apigee, Zapier, Postman, Python, Java, JavaScript, C#, JSON, XML, HTTP, OAuth, SQL, NoSQL, AWS, Azure, Google Cloud, Docker, Kubernetes, Git
API Integration Engineer
Maryland or California
$150k-$170k/yr RemoteFull Time
5+ YOEBachelor's degree in a technical field, 5–7 years of IT experience, 3–5 years of enterprise API gateway experience, Apigee expertise, Python and JavaScript/JSON proficiency, and MCP knowledge.
Apigee, Model Context Protocol (MCP), Python, JavaScript, JSON, Kong, MuleSoft, AWS API Gateway, OAuth2, JWT, YAML
Senior API Developer
United States
$105k-$143k/yr RemoteFull Time
7+ YOE7+ years Java enterprise development; Core Java 17/21, Spring Boot, REST API, JPA/Hibernate, Git/GitHub, Maven, API testing; US citizenship; ability to obtain EPA Public Trust Level 4; Bachelor's degree.
Java, Spring Boot, Spring Core, Spring Data JPA, REST API, JPA, Hibernate, Oracle, PostgreSQL, JUnit, Mockito, Git, GitHub, GitHub Copilot, Bruno, OpenAPI, Swagger, Maven, Docker, Ruby on Rails, Confluence
Lead AI/API Engineer
Washington, District of Columbia, United States
RemoteFull Time
8+ YOE8+ years software engineering with 5+ years hands-on API/integration engineering; deep C#/.NET proficiency; Azure API Management, OpenAPI, OAuth/OIDC, CI/CD, and observability experience; technical leadership and mentoring.
C#, .NET, Azure API Management, OpenAPI, Swagger, OAuth 2.0, OpenID Connect, Azure DevOps, GitHub, Azure Monitor, Application Insights, Log Analytics
Sr. Developer, API
Illinois, United States
$119k-$155k/yr RemoteFull Time
5+ YOERequires 5+ years of security engineering experience, 3+ years in cloud infrastructure security, IaC, IAM, secure cloud architecture, AI/ML security, API security, scripting, and security tooling; bachelor's degree or equivalent experience.
RESTful, GraphQL, AWS API Gateway, Kafka, AWS EventBridge, AWS Lambda, Step Functions, Auth0, Okta, OAuth 2.0, OpenAI, RAG, Google Gemini, Datadog, Terraform, AWS CDK, AWS Organizations, Control Tower, Elasticsearch, OneTrust, GitHub Actions, Azure DevOps, GitLab CI, Jenkins, CloudFormation, ARM, Kubernetes, SAST, DAST, SCA, Python, OAuth/OIDC, RBAC, SOC 2, ISO 27001, NIST, iOS, Android
Senior API Systems Engineer
Sterling or Falls Church
$150k-$254k/yr OnsiteFull Time
10+ YOEBachelor’s or master’s degree in STEM and 10+ years of relevant experience required. Requires Security+ CE, 5+ years with API gateways, cloud, programming, containers, testing, and security expertise.
API Gateway, Windows, COTS, Java, Python, C#, AWS, Microsoft Azure, Google Cloud Platform, Docker, Kubernetes, Microsoft ServiceNow, MuleSoft, Apigee, Istio, Linkerd, REST APIs, GraphQL APIs, ETL, Oracle Cloud, IBM Cloud
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
API Security Engineer
Cambridge, Massachusetts, United States
$122k-$195k/yr OnsiteFull Time
5+ YOERequires 5+ years in cybersecurity or related engineering, hands-on API security, modern API assessment, threat modeling, identity and access knowledge, cloud security fundamentals, and strong communication skills.
REST, GraphQL, AI Gateway, API gateways, service meshes, reverse proxies
API Developer (US)
New York City or Austin or Dallas or Chicago or Seattle
$90k-$150k/yr HybridFull Time
3+ YOEBachelor's degree in Computer Science or related field; 3-10 years API development experience; proficiency in Python, Java, JavaScript/Node.js, or C#; REST APIs, OAuth 2.0, JWT, SQL, Agile/Scrum, Git, Postman.
REST, GraphQL, Swagger, OpenAPI, OAuth 2.0, JWT, SQL, Git, Postman, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud
API Support Engineer
Waltham, Massachusetts, United States
$130k-$155k/yr OnsiteFull Time
3+ YOEBachelor's degree in Computer Science, Mechanical Engineering, Software Engineering or related field; 3-6 years experience; strong C++ programming; MFC and COM; experience with APIs, SDKs, or software applications; debugging and troubleshooting skills.
C++, MFC, COM, C#, Visual Basic, Microsoft .NET Framework, OLE, ActiveX, SOLIDWORKS
API Security Engineer
Berkeley Heights or Alpharetta or Coral Springs
$110k-$186k/yr OnsiteFull Time
5+ YOE5+ years IT/cyber protection experience; strong API security foundation (OAuth2/OIDC, JWT); runtime protection experience; CI/CD automation; bachelor's degree in computer science or equivalent; valid U.S. work authorization without sponsorship.
OAuth2, OIDC, JWT, Traceable, Salt Security, NoName, Open API, JSON Schema, Git, SAST, DAST
API Developer III
Knoxville, Tennessee, United States
OnsiteFull Time
3+ YOERequires 3 years of API and SSIS integration experience, REST/HTTP/JSON knowledge, authentication methods, ETL and data normalization expertise, troubleshooting skills, and a bachelor's degree or equivalent experience.
Microsoft SSIS, Microsoft Office, REST, HTTP, JSON, OAuth
AVP, API Engineer
Alpharetta or Stamford or Charlotte +1 more
$115k-$200k/yr RemoteFull Time
8+ YOEBachelor's degree and 8+ years of software engineering experience, or high school diploma/GED and 10 years; 6+ years application development, Spring Boot/Cloud, architecture, cloud, microservices, and technical leadership.
SAFe, PCF, Pivotal Cloud Foundry, J2EE, Spring Java, Spring Boot, Spring Cloud, REST, Jenkins, Bitbucket, uDeploy, SOAP, Splunk, MySQL, SQL, Gemfire, JSON, XML, GitHub Copilot
Senior API / Integration Engineer
United States
RemoteFull Time
10+ YOEActive Top Secret clearance, Bachelor’s degree in a technical field, 10+ years in API/integration engineering, experience with REST/GraphQL, API gateways, OAuth2/SAML/JWT, and federal/DoD environments.
REST, GraphQL, JSON, Kong, Apigee, AWS API Gateway, OAuth2, SAML, JWT, OpenAPI/Swagger, Lambda, EventBridge
API Developer
United States
$3k-$5k/mo RemoteFull Time, Contract
3+ YOE3+ years Python experience; Django, FastAPI, AsyncIO, Celery, Kafka, SQL/NoSQL, Docker, HTTP/REST, Linux/UNIX; unit and integration testing; English proficiency.
Python, FastAPI, Django, AsyncIO, Celery, Kafka, SQL, NoSQL, Docker, Linux, UNIX
Integrations API Developer
New Albany, Indiana, United States
$100k/yr HybridFull Time
3+ YOE3+ years full-stack development experience with C#, .NET, MS SQL; 3+ years building system integrations and APIs; strong problem-solving and communication skills; bachelor's degree in engineering, computer science, or related field preferred.
C#, .NET, MS SQL, RESTful APIs, SOAP APIs
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