466 api engineer jobs at 181 companies in Culpeper, VA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1w
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Senior API Platform Engineer
Reston, Virginia, United States
OnsiteFull Time
Akumen
Akumen: Provides technology, cybersecurity, and data services to federal agencies.
7+ YOEBachelor's or equivalent,7+ years in enterprise API management/platform engineering, experience with API gateways, REST/JSON/XML/OpenAPI, CI/CD, cloud and container deployments, Kubernetes/OpenShift, and federal security clearance eligibility.
Kong, IBM webMethods, Apigee, MuleSoft, Azure API Management, AWS API Gateway, IBM API Connect, WSO2, Tyk, REST, JSON, XML, OpenAPI, Kubernetes, OpenShift, Docker, Azure, AWS, CI/CD, Git, AppDynamics, ELK, Grafana, OpenTelemetry
1mo
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Senior API Systems Engineer
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
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
15h
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API Gateway Engineer
United States or Quantico or Washington
$112k-$179k/yr RemoteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
7+ YOEActive Secret clearance, extensive API Gateway experience, familiarity with ITSM tools (Remedy, ServiceNow, JIRA), web services (SOAP, RESTful, XML, JSON), and SDLC/PM frameworks; advanced experience level (7+ years).
API Gateway, Remedy, Service Now, JIRA, SOAP, RESTful, XML, JSON, Mulesoft, Gateway Migration Utility, SiteMinder, SAFe
3w
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API Gateway Engineer
Quantico or Washington
$104k-$166k/yr RemoteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
8+ YOEActive Top Secret clearance, DoD 8570 certification (e.g., CISSP or Security+), extensive API Gateway experience, familiarity with Remedy/Service Now/JIRA, SOAP/REST/XML/JSON, SAFe agile, and gateway administration/operations.
API Gateway, Gateway Migration Utility, SiteMinder, Remedy, Service Now, JIRA, SOAP, RESTful, XML, JSON, Mulesoft, SAFe
2mo
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Java API Developer
Herndon, Virginia, United States
HybridFull Time
NT Concepts
NT Concepts: Provides data and technology solutions for national security missions.
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
3w
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API Engineer (Remote)
Stafford or Alaska or California or Colorado or Connecticut or District of Columbia or Hawaii or Louisiana or Massachusetts or Minnesota or Missouri or Nebraska or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Dakota or Oregon or Puerto Rico or Rhode Island or Vermont or Washington or Wyoming or United States
RemoteFull Time
Oxley Enterprises
Oxley Enterprises: Provider of enterprise IT solutions and organizational management consulting.
No specific skills, education, or experience listed in the job text; posting states remote US eligibility and includes benefits information.
1w
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API Gateway Engineer (Kong)
Herndon, Virginia, United States
$170k-$210k/yr RemoteFull Time
BDR Solutions
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
Deep Kong (Enterprise/Konnect) experience, API migration and CI/CD integration skills, federal delivery and documentation experience, active IRS Minimum Background Investigation and U.S. citizenship required.
Kong Enterprise, Kong Konnect, GitOps, CI/CD, DevSecOps
1w
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eGRC Senior API Developer
Herndon, Virginia, United States
RemoteFull Time
ShorePoint
ShorePoint: Provides cybersecurity and risk management services for federal agencies.
10+ YOEBachelor's degree, 10+ years relevant experience (≥5 years development/scripting, ≥2 years cybersecurity operations), SOAR development, scripting, GitHub, RMF knowledge, US citizenship and ability to obtain security clearance.
SOAR, RegScale, Axonius, GitHub, Microsoft Visio, Tines, Splunk Phantom, Robotic Process Automation (RPA)
1d
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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
1d
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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
2mo
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Principal Engineer, API & MCP Platform
Reston or Somerville
$220k-$250k/yr HybridFull Time
VIA
VIA: Provides secure decentralized identity and data privacy software solutions.
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
1mo
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SME Systems Engineer- API Gateway & Cloud Architecture
Sterling, Virginia, United States
$180k-$230k/yr OnsiteFull Time
Synergy ECP
Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.
16+ YOEBachelor's in STEM, 16+ years' experience, DoD 8140/Security+ CE, 5+ years API Gateway experience (Broadcom preferred), expertise with Windows and cloud-hosted COTS, Java/Python/C#, AWS/Azure/GCP, Docker, Kubernetes, Agile, cloud architecture, troubleshooting, and system testing. TS/SCI w/ Poly required; U.S. citizenship required.
API Gateway, Broadcom API Gateway, MuleSoft, Apigee, Istio, Linkerd, ServiceNow, Docker, Kubernetes, Java, Python, C#, Windows, AWS, Microsoft Azure, Google Cloud, Message queues, Streaming platforms, ETL, COTS, MBSE
2w
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Principal Systems Engineer (API Gateway) - TS/SCI w CI Poly
Sterling, Virginia, United States
OnsiteFull Time
Modern Government Solutions
Modern Government Solutions: Provider of technical and programmatic services for government agencies.
16+ YOEActive DoD TS/SCI with CI Poly required, Security+ CE per DoD 8140, Bachelor's degree, 16+ years systems engineering experience, API gateway and cloud integration expertise, programming experience in Java/Python/C# and EMR of secure enterprise systems.
REST, GraphQL, AWS, Azure, Java, Python, C#, Broadcom API Gateway, MuleSoft, Apigee, Istio, Linkerd, ServiceNow, Google Cloud Platform (GCP), Oracle Cloud Infrastructure (OCI), IBM Cloud, MBSE, Windows, ETL
1w
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SME Systems Engineer - API (TS/SCI w/ CI Poly required)
Sterling, Virginia, United States
OnsiteFull Time
A&M Technologies
A&M Technologies: Provides technical and management services for federal IT infrastructure.
10+ YOEActive TS/SCI with CI poly, Security+ CE or higher, 10+ years relevant experience, STEM degree, API gateway expertise (5+ years), Java/Python/C# proficiency, cloud and containerization experience.
API gateway, Broadcom API, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Java, Python, C#, MuleSoft, Apigee, Istio, Linkerd, ServiceNow
1w
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Software Engineer Principal - Data and Automation Artificial Intelligence (GenAI, API Design)
Dallas or Pittsburgh or Springfield
$88k-$203k/yr HybridFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
5+ YOEArchitect and implement enterprise GenAI platforms (RAG and agent systems), design APIs, partner with product/security, and apply platform engineering best practices; typically requires a bachelor's and 5+ years' experience.
2mo
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Operational Systems Engineer
Chantilly, Virginia, United States
$113k-$238k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOEActive TS/SCI with polygraph; 7+ years engineering/development experience; programming and virtual infrastructure experience (Debian, Python, SQL, Linux, ProxMox, Docker, Rancher, Kubernetes); API and cross-domain/CICD experience; A&A support; ability to evaluate emerging technologies including AI.
Debian, Python, SQL, Linux, ProxMox, Docker, Rancher, Kubernetes, SYSTRAN, CI/CD, API, MFA, Cross Domain Solutions, HA-Systems, AI, A&A
2mo
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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
12+ YOEActive TS/SCI with Polygraph; BS with 12+ years; full stack dev; Java, Spring Boot, Angular, AWS; REST API; Git/Jenkins/Selenium; RH Linux.
Java, Spring Boot, Angular, TypeScript, AWS, Git, Jenkins, Selenium, Rundeck, RH Linux, REST API
1w
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Software Engineer
Fairfax or Austin or Melbourne or Denver
$99k-$207k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEU.S. citizen with bachelor\u0002s degree in STEM and 5+ years software engineering experience; ability to obtain DoD clearance; experience with distributed systems, APIs, CI/CD, and AI-assisted development tools.
Claude Code, AI agents, CI/CD, DevSecOps
18h
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Full Stack Developer (Expert)
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
11+ YOEBachelor's degree in CS/Engineering, 11+ years full-stack experience, front-end (HTML5, JavaScript, TypeScript, CSS), back-end (Java Spring, APIs, microservices), RDBMS/NoSQL, AWS, testing, strong problem-solving and communication.
HTML5, JavaScript, TypeScript, CSS, Java Spring, APIs, microservices, RDBMS, NoSQL, AWS, Ruby on Rails, Infrastructure as Code (IOC)
3w
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Full-Stack Software Developer (Expert)
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
11+ YOEU.S. person with Top Secret/SCI polygraph clearance, Bachelor's degree in CS/Engineering, 11+ years full-stack experience with HTML5, JavaScript, TypeScript, CSS, Java Spring, APIs, RDBMS/NoSQL, AWS and DevOps practices.
HTML5, JavaScript, TypeScript, CSS, Java Spring, APIs, microservices, RDBMS, NoSQL, AWS, testing frameworks, Ruby on Rails, Infrastructure as Code (IOC), SecDevOps, DevOps