634 api developer jobs at 295 companies in Leonardtown, MD

3w
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KONG/API GATEWAY SURGE ENGINEER
United States or Washington
HybridFull Time
Constellation West
Constellation West: Provides mission-critical technology services for federal government agencies.
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
2mo
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API/Java/Python Developer, SME TS Clearance REQUIRED
Arlington, Virginia, United States
$88k-$191k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
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
1w
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Senior API Management Engineer
Springfield or St. Louis
$170k-$190k/yr OnsiteFull Time
D2 Consulting
D2 Consulting: Provides IT engineering and cybersecurity services to federal agencies.
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
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
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
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
5d
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Senior API Management Engineer-Kong Enterprise Deployment
Springfield or St. Louis
$148k-$176k/yr OnsiteFull Time
teKnoluxion
teKnoluxion: Providing technical engineering and cloud services to the intelligence community.
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
3w
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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
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
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
1w
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Senior API Solutions Architect
Arlington, Virginia, United States
OnsiteFull Time
540
540: Builds mission-critical software and cloud systems for government agencies.
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
Akima
Akima: Provider of mission-focused technical and administrative support for government agencies.
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
Horizon Industries
Horizon Industries: Provides IT and management consulting services to government clients.
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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Tool/API Integrator
Springfield, Virginia, United States
$150k-$155k/yr OnsiteFull Time
Akima
Akima: Delivers mission-critical services and technology to federal agencies.
7+ YOEUS citizen able to obtain Public Trust, bachelor\u0002s degree in CS/IT/Software Engineering, 7+ years tool integration and API development experience, ServiceNow and CSDM proficiency, ETL and XML/REST skills.
ServiceNow, Common Service Data Model (CSDM), Ins-Pi (YouDesign), REST, XML, MuleSoft, Apigee, ETL
1d
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Senior API Management Engineer - Kong Enterprise Deployment
Springfield or St. Louis
OnsiteContract
Abile Group
Abile Group: Provides IT, cybersecurity, and program management services to government agencies.
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
1mo
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Senior Developer
Rosslyn, Virginia, United States
$222k/yr OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
7+ YOESecret clearance, 7–12 years software development experience, bachelor’s degree in CS/IT, expertise in Python/Java/C#, Agile/SAFe, microservices and API development, cloud and system integration; strong leadership and troubleshooting skills; certifications preferred.
Python, Java, C#, Agile, Scrum, SAFe, microservices, API, AWS, Microsoft Azure, GitHub, Kubernetes, Docker, big data platforms, TOGAF 9
2w
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OneStream Developer
Washington, District of Columbia, United States
$85k-$130k/yr OnsiteFull Time
Empirical Corporation
Empirical Corporation: Provides federal financial management and audit services for government agencies.
3+ YOE3+ years OneStream development experience, bachelor's degree in related field, proficiency in VB.Net and SQL, knowledge of C#, Python, REST APIs, ERP integrations, and ability to obtain U.S. federal security clearance.
OneStream, VB.Net, SQL, C#, Python, REST API, SAP, Oracle Financials, Momentum
2mo
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Software Developer
Dahlgren, Virginia, United States
$69k-$158k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
5+ YOE5+ years in software development; proficient in Java, Kotlin, Go, Golang, Rust, or TypeScript; modular architectures; API access; database design; CI/CD; Docker; Kubernetes; Agile; secret clearance; bachelor’s degree.
Java, Kotlin, Go, Golang, Rust, TypeScript, OpenLayers, Cesium, MQTT, gRPC, WebSockets, APIs, Docker, Kubernetes, CI/CD
3w
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ServiceNow Developer
Springfield, Virginia, United States
$145k-$175k/yr OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
5+ YOE5+ years ServiceNow platform development, 3+ years ITSM, ServiceNow CSA, Top Secret clearance (able to obtain TS/SCI with CI Poly), Agile experience, REST/SOAP/API integrations, Microsoft Office proficiency.
ServiceNow, Flow Designer, Integration Hub, REST, SOAP, APIs, Microsoft Word, Microsoft Excel, Microsoft Office
3w
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Software Engineer
Arlington or McLean
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years software development experience, bachelor's degree, ability to obtain Secret clearance, experience with C#, Web API, CI/CD and containerization preferred.
C#, Web API, Java, Python, JavaScript, Angular, React, NodeJS, .NET Framework, .NET 5, .NET 8, .NET 10, Docker, Jenkins, GitHub Actions, Azure DevOps
3mo
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AI/ML Software Developer
Arlington, Virginia, United States
HybridFull Time
InterImage
InterImage: Provides IT modernization and cybersecurity services to federal government agencies.
Strong Python experience, full-stack development, database design (SQL/NoSQL), data pipelines, familiarity with LLMs, API development, and CI/CD practices.
Python, REST API, GraphQL, SQL, NoSQL, CI/CD, Linux
1mo
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Salesforce Application Developer (6638)
Washington, District of Columbia, United States
$125k-$145k/yr HybridFull Time
MetroStar
MetroStar: Provides digital transformation and IT services to government agencies.
3+ YOEBachelor's in CS or related, active Secret clearance, Salesforce Platform Developer I, 3–5 years Salesforce development experience with Apex, LWC, Flows, APIs; local to the DMV and able to support onsite in Washington, DC.
Apex, Lightning Web Components (LWC), Salesforce Flows, Platform Events, APIs, CRM Analytics, Salesforce
2mo
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Applications Developer
Chantilly or Columbia
OnsiteFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
Experience leading Agile teams, cloud/DevOps, full-stack development, API/microservices, UI/UX, data engineering, and security.
AWS, Azure, GCP, Docker, Kubernetes, Jenkins, Git, GitHub, GitLab, Nexus, Terraform, Ansible, Jira, Confluence, React, Angular, Vue.js, Java, Python, Spring Boot, Node.js, PostgreSQL, MySQL, MongoDB, Elasticsearch