HiringCafe
Join our community
|
📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here

Api Developer Jobs in McLean, VA, US

1,000+ api developer jobs from 400+ companies hiring in McLean, VA, US.

All jobs in McLean, VA, USApi Developer Jobs in United States
Nearby:Washington·Tysons·Idylwood·Arlington·Falls Church·West Falls Church·Bethesda·Merrifield·Vienna·Potomac·Wolf Trap·Baileys Crossroads·Annandale·Oakton·North Bethesda·Silver Spring·Lincolnia·Reston·Alexandria
1,007 jobs- McLean • 50 miles
4d
Save
Mark Applied
Hide
API Integration Developer
Annapolis Junction, Maryland, United States
RemoteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Design and develop RESTful APIs and integrations in AWS, Java/Python/Node, with MuleSoft, OpenAPI; TS clearance; Bachelor's degree; IAT Level II; cloud and DevSecOps experience.
MuleSoft, AWS, Java, Python, Node.js, OpenAPI, Swagger, RAML, JSON, XML, Terraform, GitLab CI/CD
Job Posting
View all
2mo
Save
Mark Applied
Hide
API Developer Lead
Washington, District of Columbia, United States
RemoteFull Time
Initiate Government Solutions
Initiate Government Solutions: Provides IT services and healthcare informatics to federal agencies.
Hands-on Kong Gateway administration, API design with OpenAPI, Kubernetes and AWS experience; US citizenship with ability to obtain Public Trust clearance.
Kong Gateway, Kubernetes, AWS, OpenAPI, GitOps, Terraform
Job PostingView all
4d
Save
Mark Applied
Hide
API Integration Developer
Annapolis Junction, Maryland, United States
$99k-$225k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
Designing and developing RESTful APIs and microservices; experience with integration patterns and cloud services; Top Secret clearance; Bachelor’s degree; IAT Level II certifications.
MuleSoft, AWS, Java, Python, Node.js, OpenAPI, Swagger, RAML, JSON, XML, Terraform, GitLab CI/CD, MuleSoft Anypoint Exchange, Data governance
Job Posting
View all
1w
Save
Mark Applied
Hide
Software Engineer (API)
Linthicum Heights, Maryland, United States
HybridFull Time
Themis Insight
Themis Insight: Provides technical consulting and data analytics for national security.
7+ YOESeven years of SWE experience; BS in Computer Science or related field; Python; Django or Flask; MongoDB/MariaDB; REST endpoints; microservices.
Python, Django, Flask, MongoDB, MariaDB, REST, JSON, Docker, AWS, Jira, Confluence, Git
Job PostingView all
3d
Save
Mark Applied
Hide
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
Job Posting
View all
3w
Save
Mark Applied
Hide
Staff Software Development Engineer - Person API
Mountain View or McLean
$218k-$260k/yr OnsiteFull Time
ID.me
ID.me: Provides secure digital identity verification and authentication services.
8+ YOE8+ years backend API development; experience in Python/Go/Java; REST/GraphQL APIs.
Python, Go, Java, REST, GraphQL, PostgreSQL, NoSQL, Kafka, AWS, GCP, Azure, Kubernetes, OAuth2, OIDC, JWT, APIGateway
Job Posting
View all
1w
Save
Mark Applied
Hide
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
Job Posting
View all
2mo
Save
Mark Applied
Hide
Backend Developer (High-Scale WordPress & API)
Springfield, Virginia, United States
RemoteFull Time
Middle East Broadcasting Networks
Middle East Broadcasting Networks: Operates Arabic-language news and information outlets for the Middle East.
5+ YOE5+ years backend or full-stack experience; strong SQL, REST API, and WordPress; BS in CS or equivalent; strong English communication.
SQL, REST API, GraphQL, WordPress, Git, JavaScript, HTTP, AJAX, JSON
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Engineer - Full-Stack (API/Software Development/Microservices)
Chevy Chase or Palo Alto or Dallas or Seattle
$100k-$215k/yr HybridFull Time
GEICO
GEICO: Provides automobile and diverse personal and business insurance products.
5+ YOESenior engineer with 5+ years of software development; strong experience in Java/C#/.NET, front-end and back-end, microservices, cloud (AWS/Azure/GCP); open-source frameworks; architecture and design experience.
Java, C#/.NET, Python, SQL, NoSQL, Docker, Kubernetes, Azure, HTML5, JavaScript, TypeScript, Angular, React, XML, JSON, REST, Flutter
Job Posting
View all
4d
Save
Mark Applied
Hide
Software Engineer 1 (API)
Hanover, Maryland, United States
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
Python development with Django/Flask, REST endpoints, and database experience (MongoDB/MariaDB); cloud and containerization skills preferred.
Python, Django, Flask, MongoDB, MariaDB, REST, Microservices, Swagger, AWS, Docker, Visual Studio Code, JSON, XML, Jira, Confluence, Git, Agile
Job PostingView all
1w
Save
Mark Applied
Hide
SOFTWARE ENGINEER LEVEL 1 (API)
Ft. Meade, Maryland, United States
OnsiteFull Time
EOA Technologies
EOA Technologies: Designs and manages secure IT infrastructure for government agencies.
7+ YOEActive TS/SCI with Polygraph; Python; Django or Flask; MongoDB or MariaDB; REST endpoints; microservices; 7 years SWE; BS CS; 4 years substitution.
Python, Django, Flask, MongoDB, MariaDB, REST, Microservices, Docker, AWS, Jira, Confluence, Git, JSON, XML
Job PostingView all
2mo
Save
Mark Applied
Hide
Backend Developer (High-Scale WordPress & API)
Springfield, Virginia, United States
OnsiteFull Time
Middle East Broadcasting Networks
Middle East Broadcasting Networks: Provides Arabic-language news and information to the Middle East.
5+ YOE5+ years backend or full-stack experience; PHP/WordPress; REST/GraphQL; SQL; security; Git; Agile; English communication.
WordPress, WP REST API, GraphQL, PHP, JavaScript, Git, REST, AJAX, JSON, SEO
Job PostingView all
2w
Save
Mark Applied
Hide
Principal Engineer, API & MCP Platform
Reston or Somerville
$220k-$250k/yr HybridFull Time
Babel Street
Babel Street: AI-powered identity intelligence and risk operations software solutions.
10+ YOE10+ years of software engineering; senior technical leadership; API-first platform design; distributed systems; cloud-native architecture; cross-team collaboration.
GCP, Vertex AI, BigQuery, Snowflake, APIs gateway (Apigee), API design tooling, MCP
Job PostingView all
1mo
Save
Mark Applied
Hide
Software Tester / QA Engineer (Web & API Testing)
Chantilly, Virginia, United States
$160k-$190k/yr OnsiteFull Time
Falls Technology
Falls Technology: Provides secure software development and systems engineering services.
3+ YOE3+ years in software testing; strong web and REST API testing; API tools; test automation; JavaScript/Python/Java; Agile/Scrum.
Postman, Swagger, Cypress, Git, JavaScript, Python, Java, JSON
Job PostingView all
1w
Save
Mark Applied
Hide
Mulesoft Developer
McLean, Virginia, United States
$85k-$170k/yr OnsiteFull Time, Contract
Steampunk
Steampunk: Provides digital transformation and IT consulting for federal agencies.
3+ YOE3+ years Mulesoft API/integration development; cloud platform experience; Secret clearance; ability to translate business requirements into integration solutions.
Mulesoft, CloudHub 2.0, Docker, Kubernetes, Git, Jenkins, GitLab CI/CD, GitHub Pipelines, CircleCI, TravisCI, CI/CD, APIs, Cloud Platforms
Job Posting
View all
1mo
Save
Mark Applied
Hide
Mid Level Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
3+ YOE3–7 years software development; Bachelor's in CS/IT; Python/Java/C#; Agile/Scrum/SAFe; RESTful APIs; databases; security standards.
Python, Java, C#, REST, APIs, SQL, NoSQL, Agile, Scrum, SAFe, Cloud
Job Posting
View all
1mo
Save
Mark Applied
Hide
Senior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services to government agencies.
7+ YOELead design and development of software; 7–12 years in software development; proficient in Python, Java, or C#; Agile, Scrum, and SAFe; strong leadership and API integration; cloud and big data experience preferred.
Python, Java, C#, Agile, Scrum, SAFe, Cloud, Big Data, API development, Microservices
Job Posting
View all
1mo
Save
Mark Applied
Hide
Analytics Developer
Bethesda or United States
$85k-$141k/yr OnsiteFull Time
Guidehouse
Guidehouse: Provides management, technology, and risk consulting services globally.
3+ YOE3+ years analytics development; strong SQL; BigQuery; web analytics; BI tools; Python; APIs; US citizenship and public trust eligibility.
SQL, BigQuery, Google Analytics, Google Tag Manager, Power BI, Tableau, Python, APIs
Job Posting
View all
2mo
Save
Mark Applied
Hide
Appian Developer
Silver Spring, Maryland, United States
$75k-$95k/yr OnsiteFull Time
DRT Strategies
DRT Strategies: Provides digital transformation and IT solutions for federal agencies.
3+ YOE3+ years Appian development; Java, Appian BPM, SQL, APIs, web services, integrations, Appian plugins, Appian SAIL; agile; government experience preferred.
Appian, Java, SQL, Web Services, APIs, Appian Plugins, Appian SAIL
Job Posting
View all
1mo
Save
Mark Applied
Hide
Web Developer
Annapolis Junction, Maryland, United States
$144k-$210k/yr HybridFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.
8+ YOEActive TS/SCI clearance with polygraph; 8+ years web development experience; BS in related field or equivalent experience; strong front-end and API integration skills.
HTML, CSS, JavaScript, React, Angular, Vue, REST API, Jira, Confluence, 508 accessibility, AWS, Docker, Kubernetes, Node.js, Java, Linux scripting, Git, Frontend testing
Job PostingView all
6d
Save
Mark Applied
Hide
Salesforce Application Developer
McLean, Virginia, United States
RemoteFull Time
Steampunk
Steampunk: Design-led federal technology consulting and innovation services firm.
2+ YOE2+ years Salesforce development; Apex/Visualforce/Lightning; APIs; data migration; testing; code reviews; strong communication.
Salesforce, Apex, Visualforce, Lightning, Triggers, Workflows, APIs, Web Services, Force.com, Data Migration, Declarative Development, Programmatic Development
Job Posting
View all
3mo
Save
Mark Applied
Hide
Salesforce Lead Developer
Washington, District of Columbia, United States
OnsiteFull Time
Systems Integration
Systems Integration: Provides contact center solutions and managed IT for government agencies.
5+ YOE5+ years Salesforce development, Platform Developer II or equivalent, Apex, LWC, SOQL/SOSL, API integrations; DevOps tools; BS in CS/IS/Software Eng; strong technical and stakeholder communication.
Apex, Lightning Web Components, LWC, SOQL, SOSL, API integrations, Git, Copado, Gearset, Azure DevOps
Job PostingView all
2w
Save
Mark Applied
Hide
Software Engineer - Backend Developer TS/SCI with Polygraph
Chantilly, Virginia, United States
$153k-$207k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years backend development; Java, Spring Boot; REST APIs; Oracle RDS; AWS; Docker; CI/CD; Linux; Agile; TS/SCI with Polygraph clearance.
Java, Spring Boot, Hibernate, REST API, Oracle RDS, AWS, Docker, Gradle, Maven, Jenkins, JUnit, JaCoCo, Tomcat, Linux, Swagger, Kubernetes
Job Posting
View all
23h
Save
Mark Applied
Hide
Senior Systems Engineer (Full-Stack Developer)
Bethesda, Maryland, United States
RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOE8+ years software development with backend focus; experience with Java/NodeJS, Angular, REST APIs, and healthcare/EDI data; U.S. citizenship required; Public Trust clearance; remote work.
Java, NodeJS, Angular, REST API, AWS, Docker, ECS, EKS, Git, JUnit, Jest, HIPAA, WCAG, Section 508, C#/.Net, XML, JSON
Job Posting
View all
2w
Save
Mark Applied
Hide
Software Engineer - Python
Annapolis Junction, Maryland, United States
OnsiteFull Time
Interclypse
Interclypse: Provides software engineering and cybersecurity solutions for government agencies.
Develop Python/FastAPI middleware; build pipelines; implement REST API; ensure testing; participate in Agile sprints; documentation.
Python, FastAPI, REST API, Git, Agile, DevSecOps, Axway, Windows NAS, SQL, UAT
Job Posting
View all
1w
Save
Mark Applied
Hide
PowerApps Developer
Arlington, Virginia, United States
$74k-$114k/yr RemoteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
2+ YOE2+ years Power Platform development; 2+ years SharePoint; 1+ years web tech; 1+ years APIs and JSON/XML; 1+ years in agile teams; 1+ years Git; experience with Dataverse/SharePoint/Microsoft ecosystem.
Microsoft Power Platform, SharePoint, JavaScript, HTML, CSS, Bootstrap, JSON, XML, REST, APIs, Git, Dataverse, SPFx, Azure DevOps, PowerBI
Job Posting
View all
3d
Save
Mark Applied
Hide
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
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Level Developer
Suitland-Silver Hill, Maryland, United States
HybridFull Time
Ignite IT
Ignite IT: Provides digital transformation and cloud solutions to federal agencies.
8+ YOE8+ years software development; expert Python; AWS cloud native; API/microservices; migration from on-prem to AWS; CI/CD; Agile; US citizenship.
Python, AWS, Lambda, ECS, EKS, Fargate, Aurora/Postgres, EventBridge, S3, IAM/KMS, SNS/SQS, Glue, Batch, APIs, Serverless, CI/CD, GitLab, Terraform/CloudFormation
Job Posting
View all
1mo
Save
Mark Applied
Hide
Software Development Engineer (US Federal)
McLean, Virginia, United States
$137k-$205k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
8+ YOE8+ years software development experience; Python, Go, Ruby; Bachelor's in CS/Engineering or equivalent; API development; testing; OO design; mentorship; technical writing.
Python, Go, Ruby, APIs
Job PostingView all
2mo
Save
Mark Applied
Hide
Software Developer
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides cybersecurity and intelligence services for national security missions.
Full stack developer with frontend Vue, backend APIs; TS/SCI with polygraph required Day 1.
Vue
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior Full Stack Developer
Ashburn, Virginia, United States
HybridFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
7+ YOESenior Full Stack Developer with Java backend, modern JS frontend, microservices, REST APIs, CI/CD, cloud, and security clearance requirements.
Java, Spring Boot, Jakarta, JavaScript, React, Angular, Vue.js, Docker, Kubernetes, Kafka, gRPC, RabbitMQ, Jenkins, GitLab CI, Harness, REST API, CI/CD, AWS
Job Posting
View all
2w
Save
Mark Applied
Hide
Java Developer
Washington, District of Columbia, United States
$90k-$110k/yr OnsiteFull Time
IntelliDyne
IntelliDyne: Provides IT solutions and consulting services to government agencies.
5+ YOE5 years of Java development experience; strong Java proficiency; experience with government/enterprise systems; secure coding practices; CI/CD; API development; OOP.
Java, Spring, Spring Boot, Hibernate/JPA, REST, Eclipse, .NET, C#, Visual Basic, SQL Server, T-SQL, JDK 8 or higher
Job Posting
View all
5d
Save
Mark Applied
Hide
Java Developer
Columbia, Maryland, United States
$102k-$139k/yr RemoteFull Time
eSimplicity
eSimplicity: Provides digital and data services to federal government agencies.
4+ YOE4+ years Java development; Spring/Spring Boot; REST APIs; CI/CD; Agile; secure coding.
Java, Spring, Spring Boot, REST, JPA/Hibernate, SQL, Git, Maven, Gradle, CI/CD
Job Posting
View all
2mo
Save
Mark Applied
Hide
Back-End Developer, Senior/Mid- JCC2-JCO
Lackland Air Force Base or Fort Meade
OnsiteFull Time
Semper Valens Solutions
Semper Valens Solutions: Provides systems engineering, software development, and technical support services.
7+ YOEBachelor's degree; 7-10 years in software development; backend web development; Python and PostgreSQL; RESTful API; DevSecOps; cloud experience.
Python, PostgreSQL, Jira, AWS, Kubernetes, Docker, Java, OpenJDK, Ansible, Packer, Maven, REST API, Red Hat, SQL, CI/CD
Job Posting
View all
2mo
Save
Mark Applied
Hide
Microsoft D365 Developer Manager
New York City or Washington DC
$125k-$200k/yr HybridFull Time
Protiviti
ProtivitiNYSE: RHI: Provides global business consulting and internal audit services.
5+ YOE2+ Mgmt5+ years Dynamics 365 development; expertise in D365 extensibility, Power Platform, APIs; strong leadership and client-facing skills.
Dynamics 365, Power Platform, Logic Apps, Azure Functions, APIs, C#, JavaScript, Azure, Office Suite
Job PostingView all
2mo
Save
Mark Applied
Hide
Salesforce Developer
College Park, Maryland, United States
$102k-$122k/yr HybridFull Time
University of Maryland
University of Maryland: Public research university providing higher education and academic research.
3+ YOESalesforce development using Apex/LWC, REST APIs, Agile, and versioning tools; build, deploy, and maintain Salesforce solutions.
Apex, Lightning Web Components, Apex Triggers, Batch, Schedulable, Queueable, REST APIs, Metadata API, Change Sets, Visual Studio Code, Salesforce CLI, Git, GitHub, Ant
Job Posting
View all
2mo
Save
Mark Applied
Hide
Senior Back End Developer (TS/SCI)
San Antonio or Fort Meade
OnsiteFull Time
Def-Logix
Def-Logix: Provides cybersecurity and software engineering solutions for government agencies.
10+ YOESenior backend developer with TS/SCI clearance; 10+ yrs software development; 5+ yrs backend web development; Python & PostgreSQL; REST APIs; cloud (AWS/Kubernetes); DoD/DevSecOps experience.
Python, PostgreSQL, REST API, AWS, Kubernetes, RedHat Linux, Jira, Maven, BASH, Spring, Ansible, JUnit5, Nexus Repository
Job Posting
View all
1mo
Save
Mark Applied
Hide
Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
NS2 Mission
NS2 Mission: Delivers secure data management and analytics for national security.
5+ YOE5–7+ years in full stack development; proficient in Java/C#/C++; modern JavaScript (React); REST APIs; databases (SQL, MongoDB); cloud (AWS/Azure); DevOps; Agile/Scrum.
Java, C#, C++, React, HTML, CSS, SQL, MongoDB, Elasticsearch, Python, R, AWS, Azure, REST, API, IaC, DevOps, Terraform, Docker, Kubernetes
Job Posting
View all
5d
Save
Mark Applied
Hide
Software Developer
Reston, Virginia, United States
OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
2+ YOETwo years of full-stack software development; TS/SCI with poly; Bachelor's degree; Node.js; cloud deployment; API design.
Node.js, AWS, Azure, VMware, Docker, Kubernetes
Job PostingView all
2w
Save
Mark Applied
Hide
Software Engineer - Backend Developer - TS/SCI with Polygraph
Chantilly, Virginia, United States
$162k-$219k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOE5+ years backend development; TS/SCI with polygraph; Spring Boot, Hibernate, REST APIs, Java; Docker, Kubernetes; AWS; CI/CD; Linux; Gradle/Maven/Jenkins; Swagger; Oracle RDS; JUnit/JaCoCo.
Spring Boot, Hibernate, Docker, Kubernetes, Oracle RDS, REST API, Java, JUnit, JaCoCo, Tomcat, Linux, Gradle, Maven, Jenkins, Swagger, AWS, CI/CD
Job Posting
View all

HiringCafe market data

Api Developer Jobs market signals in McLean, VA, US

These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.

Open jobs
1,000+
Hiring companies
400+
Fresh sample
53% new in 30d
Salary visibility
53% show pay

Companies appearing in this market

Booz Allen HamiltonSteampunkActioNetAccenture Federal ServicesGDITGEICOGeneral Dynamics Information TechnologyGuidehouse

Work location mix in visible results

Onsite: 51Hybrid: 21Remote: 21

Related browse hubs

Senior Test Automation Engineer Jobs in Mclean VirginiaPrivacy Counsel Jobs in Mclean Virginia