88 senior software engineer react jobs at 48 companies in Hagerstown, MD
1mo
Save
Mark Applied
Hide
React Developer Senior
Ashburn, Virginia, United States
HybridFull Time
5+ YOEBS in CS/Engineering, 5+ years software development with 5+ years React experience; proficiency in Typescript/JavaScript, HTML/CSS/SCSS, JSON, Jest/Enzyme/React Testing Library, and browser debug tools.
React, Typescript, JavaScript, JSON, HTML4/5, CSS, SCSS, Jest, Enzyme, React Testing library, Visual Studio Code, chrome devtools
1mo
Save
Mark Applied
Hide
React Developer Senior
Ashburn, Virginia, United States
$120k-$160k/yr HybridFull Time
5+ YOE5+ years React and UI development experience, BS in CS/Engineering, TypeScript/JavaScript, HTML4/5, CSS/SCSS, Jest/Enzyme/React Testing Library, experience with complex backend APIs, strong communication and critical thinking.
React, Microsoft Visual Studio Code, TypeScript, JavaScript, MVC, MVVM, JSON, HTML4/5, CSS, SCSS, Jest, Enzyme, React Testing Library, Chrome DevTools
1mo
Save
Mark Applied
Hide
Senior Software Engineer-Internal Tools
Arlington or Clarksburg
$125k-$140k/yr OnsiteFull Time
3+ YOE3+ years software engineering; experience with Rust or strong systems languages, TypeScript/React, Linux, Docker, CI/CD, scripting (Bash/Python); ability to debug across app, OS, and network layers.
Rust, C, C++, Go, TypeScript, React, Linux, Docker, GitLab CI, Jenkins, Bash, Python, Tauri, Ansible, Jetson, Orin, ARM64, AWS, S3, IAM, EC2, Conan
3w
Save
Mark Applied
Hide
Senior Software Engineer
Nashville or Sterling
HybridFull Time
Asurion: Provides insurance and repair services for consumer electronics.
3+ YOEBachelor's degree required,3+ years building web and back-end systems,proficiency with JavaScript/TypeScript,React and Java or Node.js,experience with Git and automated testing frameworks.
React, TypeScript, JavaScript, Java, Node.js, AWS, Git, Jest, Mocha, Jasmine, Redux, ES6, CI/CD, NoSQL
2w
Save
Mark Applied
Hide
Senior Software Engineer, FE/Mobile
Herndon, Virginia, United States
$138k-$235k/yr HybridFull Time
2+ YOE2–5 years software engineering experience, proficiency in Java/Kotlin/Go, front-end with React/Next.js/TypeScript, cloud experience (AWS/GCP), strong CS fundamentals and collaboration skills.
Java, Kotlin, Go, React, Next.js, TypeScript, AWS, GCP
3w
Save
Mark Applied
Hide
Software Developer, Senior
Herndon, Virginia, United States
$87k-$198k/yr OnsiteFull Time
6+ YOE6+ years software development experience, legacy enterprise and microservices experience, Agile, Python and Git familiarity, TS/SCI clearance with polygraph required.
Python, Java, JavaScript, React, Angular, NodeJS, AWS, Azure, Google Cloud Platform, Git
2w
Save
Mark Applied
Hide
Software Developer, Senior
Herndon, Virginia, United States
$87k-$198k/yr OnsiteFull Time
6+ YOE6+ years software development; 3+ years with legacy enterprise systems; experience with microservices, APIs, Git; HS diploma/GED; TS/SCI clearance with polygraph required.
Python, Java, JavaScript, React, Angular, NodeJS, Git, AWS, Azure, Google Cloud Platform
1d
Save
Mark Applied
Hide
Senior Software Engineer
Ashburn, Virginia, United States
RemoteFull Time
5+ YOERequires 5+ years in full-stack engineering or related disciplines, a bachelor's or master's degree, U.S. citizenship, FEMA Public Trust suitability, and experience with modern web, cloud, DevSecOps, and accessibility practices.
PostgreSQL, Express.js, React, Node.js, Terraform, CI/CD, Git
1mo
Save
Mark Applied
Hide
Senior Modeling and Simulations Software Developer
Huntsville or Maryland or Rockville or California
$121k-$205k/yr OnsiteFull Time
10+ YOEUS citizen with Secret clearance, 10+ years software engineering experience with Javascript, Typescript, React, Java and Spring Framework; Bachelor's degree; modeling & simulations experience; EM/software development and testing skills.
Javascript, Typescript, React, Java, Spring Framework, Docker, Kubernetes, Rabbit MQ, TomCat
2mo
Save
Mark Applied
Hide
Software Developer
Herndon, Virginia, United States
$156k-$234k/yr OnsiteFull Time
5+ YOE5+ years software development experience; strong proficiency in Typescript, React, Nextjs, and Python; experience with cloud-hosted web applications; active TS/SCI with polygraph required; Agile team experience.
Typescript, React, Nextjs, Python
4d
Save
Mark Applied
Hide
Principal Software Engineer
Colorado Springs or Dayton or Herndon
$175k-$200k/yr HybridFull Time
Software development experience with Unix/Linux, microservices, messaging, REST APIs, Agile/DevOps, Python, Java, JavaScript/React, and Cucumber; ability to obtain and maintain Top Secret clearance.
Unix, Linux, RabbitMQ, REST APIs, Agile, DevOps, Python, Java, JavaScript, React, Cucumber, CI/CD, GitHub, GitLab, Jira, Sphinx, NASA GMAT
1mo
Save
Mark Applied
Hide
Senior Software Full Stack Engineer
Leesburg, Virginia, United States
$112k-$158k/yr OnsiteFull Time
8+ YOEU.S. citizenship required; Bachelor's in computer science; 8+ years software development; front-end with React; back-end with Java, C++ and Python; extensive Linux, CI/CD, REST API and embedded integration experience.
React, Java, C++, Python, Linux, Maptiler, Mapbox, mbtiles, Deck.gl, RESTful API, CI/CD
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Sterling, Virginia, United States
$185k-$225k/yr OnsiteFull Time
Design and develop front-end applications and back-end microservices in an agile environment; experience with cloud, containers, Kubernetes, REST, microservices, CI/CD; mentor junior teammates; active TS/SCI required.
REST, microservices, AWS, GCP, Azure, Kubernetes, containers, HTML5, CSS, SASS, Less, Stylus, Browserify, WebPack, Closure, Angular, Ember, React, Redux, Reactive, VueJS, Node.js, NPM, Linux, Subversion, Git, JIRA, Confluence, WebSockets, Svelte, Cesium, OpenLayers, Spring, Docker
1w
Save
Mark Applied
Hide
Senior Software Engineer
United States or Westminster or Herndon
$128k-$216k/yr RemoteFull Time
6+ YOEU.S. citizen with active Top Secret security clearance or CBP/DHS suitability, bachelor\u0002s degree or equivalent experience, 6+ years development experience with strongly-typed and scripting languages, agile experience, and ability to lead technical efforts.
Java, Rust, Python, JavaScript, TypeScript, Jira, Confluence, git, Apache Flink, Apache Kafka, React, Next, Leaflet, Map Libre, Redux, AWS, Azure, Google Cloud, OpenStack, Kubernetes, Docker, Jenkins, ArgoCD, Harness, GitLab CI, GitHub Actions, PostgreSQL, Apache Iceberg
2mo
Save
Mark Applied
Hide
Software Developer (SME)
Herndon or McLean or Virginia or United States
$150k-$254k/yr HybridFull Time
16+ YOETop Secret/SCI polygraph clearance required, U.S. person required, 16+ years software development experience, bachelor’s degree, proficiency in Java and C#, React, Node.js, TypeScript, .NET, cloud platforms, DevOps tools, and scripting (Python or PowerShell).
Java, C#, React, Node.js, TypeScript, .NET, AWS, Azure, Google Cloud, Oracle, Jira, GitHub, Jenkins, Python, PowerShell, Windows, Linux, Ansible
2mo
Save
Mark Applied
Hide
Software Engineer
Herndon, Virginia, United States
OnsiteFull Time
Active TS/SCI with Poly, experience in Android and iOS mobile development, React/Node.js/JavaScript, Electron, AWS EC2/S3, EM/UX, JIRA, GitHub/GitLab, bachelor's or equivalent experience.
Android, iOS, Amazon EC2, Amazon S3, React, Visual Studio Code, Android Studio, Xcode, Node.js, JavaScript, Electron, Windows, Linux, UNIX, JIRA, GitHub, GitLab
2mo
Save
Mark Applied
Hide
Lead Java Software Engineer – Developer
Herndon or Seal Beach or El Segundo or Colorado Springs
$212k-$286k/yr OnsiteFull Time
Senior Java software development leadership; 10+ years Java/C++, React/Angular, cloud experience; TS clearance; Bachelor's degree.
Java, C++, Angular/React.js, HTML, CSS, Cloud, CI/CD
1mo
Save
Mark Applied
Hide
Senior Full Stack Software Developer w/poly
Sterling, Virginia, United States
OnsiteFull Time
10+ YOEActive TS/SCI with poly required; 10+ years software engineering; strong Python and Java; React and Django experience; DevOps/CI-CD; experience with large-scale data pipelines; Bachelor’s in Computer Science or related field.
Python, Java, React, Django, Spark, OpenSearch, Elasticsearch, Kafka, gRPC, Celery, Docker, Kubernetes, MariaDB, MySQL, ValKey, PostgreSQL, InfluxDB, MongoDB, Open Telemetry (OTel), GitLab, Jira, Confluence
3w
Save
Mark Applied
Hide
Java Software Engineer – Developer (Experienced and Senior)
Herndon or Seal Beach or Mesa
$127k-$232k/yr OnsiteFull Time
3+ YOERequires U.S. Top Secret clearance, Bachelor's degree, 3+ years software experience with Java/C++/React, cloud and Agile experience, and ability to work in Windows/Linux environments.
Java, ReactJS, Python, CI/CD, C++, Angular, HTML, CSS, Windows, Linux, AWS, Maven, Git, GitLab, Jira, Confluence, Bitbucket, JUnit, Mockito, Spring Boot, MongoDB, REST, Kubernetes, Helm
5d
Save
Mark Applied
Hide
Software Engineer V, Forward Deployed
Gaithersburg or Rockville or United States
$195k-$220k/yr HybridFull Time
15+ YOEBachelor's degree in computer science, engineering, or related field; 15+ years' experience; advanced agentic AI expertise; React, TypeScript, AWS, GitLab, CI/CD, and enterprise platform experience.
React, TypeScript, JavaScript, AWS, AWS Lambda, Amazon ECS, Amazon DynamoDB, GitLab, CI/CD, LangChain, LangGraph, Amazon Bedrock, Docker, Terraform, Workday, Deltek, P6