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API Developer (Senior)
Baltimore, Maryland, United States
OnsiteFull Time
3+ YOEBachelor's in CS or related field (or 5 years' equivalent),3+ years computer experience,1+ year web/app development experience; knowledge of HTML,CGI,PERL,Javascript,Java,cloud and Salesforce.
HTML, CGI, PERL, Javascript, Java, Salesforce
2mo
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Java API Developer
Herndon, Virginia, United States
HybridFull Time
3+ YOEBachelor’s degree and 2–5 years of experience with Java, JavaScript, API-based software; TS/SCI with CI Poly clearance required.
Java, Spring Boot, JavaScript, REST APIs, GraphQL, SOAP, Postman, Swagger UI, Apache Kafka, NiFi, SQL, NoSQL, Git, AWS, Azure, GCP, Docker, Kubernetes
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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KONG/API GATEWAY SURGE ENGINEER
United States or Washington
HybridFull Time
Expertise with Kong Enterprise or comparable API gateways, API gateway implementation and migration, gateway policies, plugin configuration, developer portals, API security; experience with Kubernetes, OpenShift, Docker, GitOps, CI/CD, OAuth/JWT/OpenID Connect; bachelor’s preferred.
Kong Enterprise, Kong, Apigee, IBM API Connect, MuleSoft, Azure API Management, AWS API Gateway, Kubernetes, OpenShift, Docker, GitOps, CI/CD, OAuth, JWT, OpenID Connect
1w
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API Lead
Baltimore, Maryland, United States
RemoteFull Time
Design, develop, and maintain REST APIs and enterprise integrations using FHIR/HL7, cloud (AWS preferred), and data mappings between JSON, XML, X12 and flat files.
REST, FHIR, HL7, AWS, JSON, XML, X12
3w
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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
2mo
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26-2258: API Developer - Linthicum, MD
Linthicum, Maryland, United States
OnsiteFull Time
3+ YOEBachelor's in CS/IS/Engineering/Business or 5 years equivalent; 3+ years in system analysis/programming/app development; 1+ year building web-based apps using HTML, CGI, Perl, JavaScript or Java; strong communication and architecture skills.
HTML, CGI, Perl, JavaScript, Java, Salesforce, AWS
2mo
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API/Java/Python Developer, SME TS Clearance REQUIRED
Arlington, Virginia, United States
$88k-$191k/yr OnsiteFull Time
10+ YOETS/SCI eligible with CI Poly; proficiency in Java and Python and related frameworks; API design and integration experience; database, cloud, containerization, Git, Agile experience; Bachelor's or 10+ years experience.
Java, Python, Spring Boot, Flask, Django, REST, GraphQL, SOAP, Postman, Swagger UI, PostgreSQL, MongoDB, MySQL, Git, AWS, Azure, GCP, Docker, Kubernetes
2mo
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Senior API Systems Engineer
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
10+ YOEU.S. person with Top Secret/SCI polygraph clearance, 10+ years' relevant experience, Bachelor’s or Master’s in a STEM field, Security+ CE (DoDD 8140), 5+ years API gateway experience, proficiency with Java/Python/C#, cloud (AWS/Azure/GCP), Docker/Kubernetes.
Java, Python, C#, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Istio, Linkerd, MuleSoft, Apigee, Broadcom API, ServiceNow, Windows, Linux
2d
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Full Stack API Developer- TS/SCI with Polygraph
Chantilly, Virginia, United States
$187k-$253k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
15+ YOE15+ years experience in full stack Java development, experience with ArangoDB, JIRA, Spring Boot, Mongo, AWS, JavaScript/TypeScript, Angular, REST; TS/SCI with polygraph required; BA/BS or equivalent.
ArangoDB, Atlassian JIRA, Java, Spring Boot, Mongo, AWS services, JavaScript, TypeScript, Angular, REST, Elasticsearch, OAuth 2.0
2w
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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
2w
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API Developer/Data Engineer Managing Consultant-Fraud/AI
McLean or New York City or Arlington or United States
$130k-$216k/yr HybridFull Time
5+ YOEUS citizen able to obtain Public Trust,5+ years in data engineering/integration, proficiency in Python, Java/JS, .NET (C#), RESTful APIs, XML, SQL/SQL Server, GCP, data formats (JSON, Parquet), and experience leading technical teams.
Python, Java, JS, C#, .NET, RESTful API, XML, SQL Server, SQL, CSV, TXT, JSON, Parquet, GCP, Apigee, Kong, Azure API Management, AWS API Gateway, LexisNexis, Oracle Mantas, Actimize, Fircosoft, Oracle Mantas, World-Check, Dow Jones, Chainalysis, Elliptic, TRM Labs
1d
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Senior API Solutions Architect
Arlington, Virginia, United States
OnsiteFull Time
9+ YOE9+ years in API architecture/integration; experience with enterprise API gateways, OpenAPI/Swagger, API governance, security (OAuth2/OpenID Connect/JWT/PKI), cloud-native integrations, and mentoring teams.
Apigee, Gravitee, OpenAPI, Swagger, JSON Schema, OAuth 2.0, OpenID Connect, JWT, PKI, Kubernetes, Docker, Istio, Linkerd, CI/CD
3mo
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Tool/API Integrator
Springfield, Virginia, United States
$139k-$236k/yr OnsiteFull Time
7+ YOEUS citizenship, ability to obtain Public Trust clearance, bachelor’s in CS/IT/SE, 7+ years in tool integration and API development, ServiceNow/CSDM experience, strong problem-solving and collaboration.
REST, XML, ETL, APIs, ServiceNow, CSDM (Common Service Data Model), Ins-Pi (YouDesign), EA Repository, metamodel
1mo
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Senior Application Developer (DAAS API GW)
Washington or United States
RemoteContract
5+ YOEFive+ years developing applications; experience with APIs, low-code/no-code platforms, BPMN, MuleSoft; BS in related field; 8570 IAT Level I and MuleSoft certification required; active Secret clearance.
Java, HTML, Microsoft .NET, AngularJS, JavaScript, SOAP, REST API, Web Based API, BPMN, Appian, Salesforce, Nintex, MuleSoft Anypoint Platform, Microsoft SQL Server
3mo
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Principal Engineer, API & MCP Platform
Reston or Somerville
$220k-$250k/yr HybridFull Time
10+ YOESenior-level principal engineer for API and MCP platform; hybrid role; Reston, VA or Somerville, MA; high ownership and hands-on leadership.
API design, MCP (Model Context Protocol), Semantic APIs, GCP, Vertex AI Context Caching, BigQuery, Snowflake, Apigee
4w
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Staff Engineer - API Team
Washington or United States
$160k-$175k/yr RemoteFull Time
Experienced software engineer with API and cloud experience (GCP preferred), strong systems and reliability skills, production shipping and mentorship experience, US work authorization, and willingness to serve on on-call rotation; bachelor's degree expected.
C#, .NET, React.js, PostgreSQL, Google Cloud Platform (GCP), CloudRun, Cloud Functions, Pub/Sub, BigQuery, ClickHouse, GitHub Actions, Docker, Terraform, Firebase
2mo
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Software Engineer 1 (API)
Linthicum Heights, Maryland, United States
$52-$107/hr OnsiteFull Time
7+ YOEU.S. citizenship and Top Secret/SCI clearance with appropriate polygraph required; 7 years SWE experience; Bachelor’s in Computer Science (or 4 additional years of SWE experience); strong Python, Django/Flask, ReST, and database skills.
Python, Django, Flask, MariaDB, MongoDB, PostgreSQL, ReST, JSON, XML, Swagger, AWS, Docker, Visual Studio Code, Jira, Confluence, Git
1mo
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Application Engineer 4 (API)
Linthicum Heights, Maryland, United States
HybridFull Time
4+ YOETS/SCI with Polygraph required. Python, Docker, Django/Flask, MariaDB or MongoDB, REST and microservices experience. Minimum 4-12 years experience depending on degree.
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, AWS, JSON, XML, Jira, Confluence, Git
1d
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Lead Software Engineer, Back End (Python, GO, API, AWS) (Cloud Operations Resilience Engineering)
McLean, Virginia, United States
$197k-$225k/yr OnsiteFull Time
4+ YOEBachelor's degree and 4+ years software engineering experience; cloud (AWS/Azure/GCP), Python or Go, API and distributed microservices experience; strong communication and mentoring skills.
Python, Go, API, AWS, Microsoft Azure, Google Cloud, Open Source RDBMS, NoSQL
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