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Javascript Typescript Engineer React Jobs in Leonardtown, MD, US

60 javascript typescript engineer react jobs from 42 companies hiring in Leonardtown, MD, US.

All jobs in Leonardtown, MD, USJavascript Typescript Engineer React Jobs in United States
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60 jobs- Leonardtown • 50 miles
1mo
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Portal/React Developer
Middletown, Pennsylvania, United States
OnsiteFull Time, Contract
Data-Core Systems
Data-Core Systems: Provides IT consulting, software development, and business process services.
1+ YOEFrontend developer with React.js experience; proficient in JavaScript/TypeScript, HTML5, CSS3; REST/GraphQL APIs; CI/CD; unit/integration testing; Agile environment; Bachelor's preferred.
React.js, JavaScript, TypeScript, HTML5, CSS3, REST, GraphQL, Git, Jest, React Testing Library, Cypress, GitHub Actions, Vite
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1mo
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Sr Full Stack Developer – Node.js / React
Arlington, Virginia, United States
$86k-$170k/yr HybridFull Time
Alpha Omega
Alpha Omega: Delivering digital transformation and IT solutions for federal agencies.
10+ YOE10+ years software development; 3+ years React/Node.js; 3+ years Node APIs; 3+ years Microsoft cloud services; US citizenship; federal contract experience preferred.
JavaScript, TypeScript, React, Node.js, Office JavaScript APIs, Microsoft Graph, SharePoint REST APIs, Azure Entra ID, CI/CD, Git
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4d
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Software Engineer - Full Stack/UI Focus
Annapolis Junction, Maryland, United States
OnsiteFull Time
Set of X
Set of X: Provides specialized engineering services for U.S. national security missions.
3+ YOEMid-level full-stack engineer with JavaScript/TypeScript, frontend frameworks (Vue/React), REST, MongoDB, and automated testing; strong problem-solving and collaboration skills.
Java, TypeScript, JavaScript, Vue, React, REST, MongoDB, Kafka, CI/CD, Linux, Claude Code
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Forward Deployed Engineer
Washington, District of Columbia, United States
$165k-$220k/yr HybridFull Time
Promise
Promise: Providing payment and financial assistance systems for government agencies.
4+ YOE4+ years of production software experience; customer-facing technical role; proficient in JavaScript/TypeScript, SQL, React; strong problem-solving and collaboration.
JavaScript, TypeScript, SQL, React, ETL tools
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6d
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Senior Software Engineer - Remote Nationwide or Hybrid in MN or DC
Eden Prairie or Washington
$92k-$164k/yr HybridFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-driven healthcare services.
9+ YOESenior front-end/full-stack engineer with React/JavaScript/TypeScript, Node.js backend, cloud, CI/CD, and DevOps experience in healthcare domain.
React, JavaScript, TypeScript, HTML5, CSS3, Node.js, Spring Boot, REST API, Docker, Kubernetes, CI/CD, Jenkins, GitHub Actions, Terraform, Git, OpenAI API, Datadog, Splunk
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Senior Front End Engineer
Austin or Boston or Providence or San Diego or Washington D.C.
$140k-$175k/yr HybridFull Time
HavocAI
HavocAI: Develops autonomous surface vessels and collaborative maritime autonomy software.
5+ YOE5–8+ years frontend experience, expert with React and modern JavaScript/TypeScript, strong data-driven UI, REST/GraphQL APIs, performance optimization, and collaborative cross-functional work.
React, JavaScript, TypeScript, REST, GraphQL, Mapbox, Deck.gl, WebGL, Cypress, Jest
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3d
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Front-End Web Developer
New York or Washington or Seattle or Miami or San Francisco
$85k-$100k/yr RemoteFull Time
Socure
Socure: Provide AI-driven identity verification and fraud prevention software.
4+ YOE4+ years front-end development; HTML, CSS, JavaScript/TypeScript; React; design-focused; experience with headless CMS (Contentful); strong design sensibility.
React, HTML, CSS, JavaScript, TypeScript, Contentful, Sanity, Prismic, Storyblok
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3w
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Modern Software Developer, Senior
Arlington, Virginia, United States
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
5+ YOE5+ years in full-stack software development with JavaScript/TypeScript, Node.js, React; Agile; microservices; ability to obtain Secret clearance; Bachelor’s degree or 8+ years of experience in lieu of a degree.
JavaScript, TypeScript, Node.js, React, Python, NestJS
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Software Developer – Junior (Team 09)
Washington, District of Columbia, United States
$100k-$115k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
1+ YOE1 year of professional experience in backend/frontend development with Java, JavaScript, Go, Python, TypeScript, or .NET; experience with Java Spring, Node.js, React/Next.js; Agile; TS clearance with SCI eligibility; bachelor’s degree in IS/CS/Engineering or related field.
Java, JavaScript, Go, Python, TypeScript, DOTNET, Spring, Node.js, React, Next.js, Hibernate, Maven, Gradle, Git, Jira, SonarQube, Jest, Mocha, Chai
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6d
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Senior Software Engineer - Remote Nationwide or Hybrid in MN or DC
Minneapolis or Washington
$92k-$164k/yr HybridFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
9+ YOESenior software engineer with 9+ years full-stack experience, expert in React, JavaScript/TypeScript, Node.js, Spring Boot, and CI/CD; strong backend and frontend skills; healthcare domain experience preferred.
React, JavaScript, TypeScript, HTML5, CSS3, Node.js, Spring Boot, REST APIs, Docker, Kubernetes, CI/CD, DevOps, Splunk, Datadog, OpenAI
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2w
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Full-Stack Web Developer
Lanham or Lanham
$70k-$100k/yr HybridFull Time
Science Systems and Applications
Science Systems and Applications: Provides scientific, engineering, and IT services to government agencies.
5+ YOEBachelor’s degree and at least 5 years of experience; strong Next.js, React, JavaScript, TypeScript, API design; SQL/MySQL; ORM; Linux and Docker; Node.js; secure coding; US citizenship.
Next.js, React, TypeScript, JavaScript, REST API, MySQL, Prisma, Node.js, Express.js, Linux, Docker, Git, Perl, jQuery, Tailwind CSS
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2mo
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Front End Software Engineer
Cambridge or Arlington or Seattle
$90k-$210k/yr HybridFull Time
MORSE Corp
MORSE Corp: Develops advanced technology for national security missions.
5+ YOE5+ years frontend UI/UX exp; US citizenship or ability to obtain security clearance; React, Typescript/JavaScript, Python; TDD; design patterns; Git/Subversion; Agile; BS/MS in CS or equivalent; 5+ years experience
React, React Native, Kotlin, Python, Typescript, JavaScript
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Front End Developer
Springfield, Virginia, United States
OnsiteFull Time
Trinity Global Consulting
Trinity Global Consulting: Provides professional support services to US government agencies.
2+ YOEBachelor's in CS/Math/GIS/STEM; 2+ years front-end web development; HTML5, CSS3, TypeScript, JavaScript; React/Angular/Vue; high availability/scalability experience; strong communication; US Citizenship; Top Secret SCI clearance.
HTML5, CSS3, TypeScript, JavaScript, React, Angular, Vue, Docker, Kubernetes, Azure, AWS, GCP, CI/CD
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1w
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Front-End Engineer - GEOINT | TS/SCI
Quantico, Virginia, United States
OnsiteFull Time
Xcellent Technology Solutions
Xcellent Technology Solutions: Provides geospatial intelligence and IT services to federal agencies.
4+ YOEActive TS/SCI clearance; degree or 8+ years experience; 4+ years frontend experience; React/Vue/Angular; JavaScript/TypeScript/HTML/CSS; REST APIs; data visualization with D3/ArcGIS; accessibility and UI/UX.
React, Vue.js, Angular, JavaScript, TypeScript, HTML5, CSS3, D3.js, ArcGIS API for JavaScript, npm, Yarn, Webpack, Vite, Git, REST APIs
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2w
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Front End Developer
Huntsville or Washington
$87k-$123k/yr HybridFull Time
Groundswell
Groundswell: Providing technology integration and digital modernization for federal agencies.
4+ YOE4+ years frontend development with dashboards/visualizations; JavaScript/TypeScript (React/Angular/Vue); data visualization (D3.js/Plotly/Recharts); accessible UI (508/WCAG); eligible for Top Secret/SCI clearance; based in Huntsville, AL or Washington, DC metro area.
JavaScript, TypeScript, React, Angular, Vue, D3.js, Plotly, Recharts, Mapbox, WCAG, 508
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1d
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Software Engineer 3
Annapolis Junction, Maryland, United States
$176k-$238k/yr OnsiteFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years of related experience; TS/SCI w/ Polygraph; Bachelor's degree; Linux CLI/tools; Python, Bash; front-end tech (TypeScript, HTML/CSS, React/Angular/Vue); Streamlit; data processing; Git; Jupyter; distributed engines (Spark).
Linux, GitLab, Python, Bash, Java, TypeScript, HTML, CSS, JavaScript, React, Angular, Vue, Streamlit, Spark, Jupyter, pandas, NumPy, Parquet, JSON, CSV, XML, Airflow, MySQL, MariaDB, PostgreSQL, Slurm, JIRA, Confluence, Git
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2mo
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Principal Software Engineer - 90402969 - Onsite - Washington DC, Wilmington, Philadelphia (Washington, DC, US, 20001)
Washington or Wilmington or Philadelphia
$125k-$161k/yr OnsiteFull Time
Amtrak
Amtrak: Provides intercity passenger rail services across North America.
7+ YOEBachelor's degree or equivalent; 7+ years experience; onsite 4-5 days; strong Java/JavaScript/TypeScript/SQL; Angular/React; Spring/SpringBoot; REST; cloud; data streaming
Java, JavaScript, TypeScript, SQL, Angular, React, Node.js, Spring, SpringBoot, REST, Cloud, Data streaming, Version control
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Senior Software Developer - Clearance Required
Reston or Joint Base Anacostia-Bolling
HybridMultiple Commitments Available
Cydecor
Cydecor: Providing technology solutions and mission support to defense agencies.
6+ YOE6+ years in distributed software development; frontend tech stack (Vue, JavaScript, TypeScript); backend services; Agile; TS/SCI clearance preferred.
Vue, JavaScript, TypeScript, React, Angular, Linux, Git, Jira, Confluence, Artifactory, APIs, Relational databases, NoSQL, Agile, Security-focused development, CI/CD, Python, Java, Docker, Kubernetes, OpenShift, Jenkins, Keycloak, OAuth2, JWT, SonarQube, OWASP ZAP, Fortify, CI/CD pipelines, AWS, Azure, CI/CD
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1mo
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Front-End Web Developer, B2B, Marketing Technology
San Francisco or New York or Washington
$83k-$122k/yr HybridFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
4+ YOE4+ years front-end web development; HTML5, CSS3, modern JavaScript (ES6+), React/Next.js (Vue/Angular also considered); TypeScript; CSS methodologies; WCAG accessibility; headless CMS (Contentful); Storybook; Git; CI/CD; Webpack/Vite; performance, SEO, and analytics integration.
HTML5, CSS3, JavaScript, React, Next.js, Vue.js, Angular, TypeScript, CSS-in-JS, CSS Modules, Tailwind, Contentful, Storybook, Git, CI/CD, Build tools, Webpack, Vite, Turborepo, Package managers, Google Tag Manager
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Full Stack Palantir Foundry Developer
Arlington or Seattle or Denver or Chicago or Ridley Park or El Segundo or Saint Louis or Seattle
$149k-$215k/yr HybridFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
5+ YOEFull stack software development with 5+ years experience; React/TypeScript; Python/PySpark; ontology/taxonomy development; Foundry experience preferred.
ReactJS, Redux, JavaScript, TypeScript, Python, PySpark, REST, Git, S3/Parquet
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Cloud Software Engineer CSWE3 - 27154
Hanover, Maryland, United States
OnsiteFull Time
PAX Engineering
PAX Engineering: Provides software and systems engineering for the intelligence community.
Experience with front-end (Javascript/React) and back-end (Node.js, Python, Rust); microservices (Kubernetes, Helm); cloud migration; databases (MySQL, Redis, Neo4j); messaging (RabbitMQ/Kafka); testing (Jest); and related devops tools.
Kubernetes, Helm, Terraform, Ansible/Salt, Grafana, InfluxDB, Elasticsearch, Redis, MySQL, Neo4j, RabbitMQ, Kafka, NiFi, Superset, React, Javascript, Typescript, Node.js, Python, Rust, Shell, WebSockets, JBLOCKS, CASPORT, CAMKEY, LAC, COI
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2w
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Senior Software Engineer
Arlington, Virginia, United States
OnsiteFull Time
AvalonBay Communities
AvalonBay CommunitiesNYSE: AVB: Develops and manages luxury multifamily apartment communities.
6+ YOEBachelor's degree; 6+ years software engineering; 5+ years Node.js/TypeScript backend; 3+ years AWS; 2+ years SQL/PostgreSQL; 2+ years Agile.
AWS, Node.js, TypeScript, JavaScript, PostgreSQL, Next.js, React, AWS CDK, API Gateway, Lambda, SQS, EventBridge, GitHub Actions
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1mo
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Principal Software Engineer - Hybrid in MN or DC, remote elsewhere
Eden Prairie or Washington D.C. or United States
$135k-$231k/yr HybridFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Sells health insurance and provides diversified healthcare services.
12+ YOELead architect for enterprise full-stack platforms; 12+ yrs software engineering; 8+ yrs distributed systems; 8+ yrs TypeScript/JavaScript or Python; 5+ yrs DevOps; 3+ yrs AI/ML integration; 1+ yrs AI-assisted tools.
React, Angular, TypeScript, JavaScript, Python, FastAPI, Node.js, Docker, CI/CD
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4d
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Forward-Deployed Engineer
Washington, District of Columbia, United States
$185k-$260k/yr RemoteFull Time
Legion Intelligence: Secure generative AI platform for defense and enterprise workflows.
4+ YOE4+ years in forward deployed/solution engineering; full-stack; Python/JS/TS; enterprise integrations; UI with Node/Next/React; autonomous; strong communicator; US citizens/Green Card holders; TS/SCI clearance.
Python, JavaScript, TypeScript, Node.js, Next.js, React, Palantir Foundry, Databricks, ServiceNow, Microsoft O365, Atlassian, n8n
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1w
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Full Stack Palantir Foundry Developer
Arlington or Seattle or Denver or Chicago or Ridley Park or El Segundo or Saint Louis or Seattle
$149k-$215k/yr HybridFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
5+ YOEBachelor's degree in CS/Software/Data Eng or related field; 5+ years full-stack software development; 5+ years React/JavaScript/TypeScript; 3+ years ontology/taxonomy development; 5+ years web development with ReactJS/Redux/JS/TS/HTML/CSS
Palantir Foundry, Workshop, Slate, React, TypeScript, Python, PySpark, REST, JDBC, S3/Parquet, Git
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Senior Software Developer
Tampa or Fort Belvoir
OnsiteFull Time
Odyssey Systems
Odyssey Systems: Providing technical and engineering services to federal government agencies.
12+ YOE12+ years software development; US citizen; Active Secret clearance; Bachelor in Computer Science or related field.
AWS, Azure, GCP, CI/CD, DevOps, Docker, Kubernetes, Git, Java, C#, Python, JavaScript, TypeScript, REST, Microservices, Django, Spring, React, Angular, Vue, .NET, Databases, Relational databases, NoSQL
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2w
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Fullstack Developer
Arlington, Virginia, United States
$115k-$125k/yr RemoteFull Time
Dexian Government Solutions
Dexian Government Solutions: Provides diversified IT and engineering solutions to government agencies.
3+ YOE3+ years JavaScript, 5+ years full stack, Python/JS/C#, CS/Web Dev degree, UI/UX experience, professional certifications.
HTML, CSS, JavaScript, TypeScript, jQuery, Angular, React, Node.js, Python, C#, Flask, Django, MySQL, Teradata, Apache, REST, gRPC, Azure, AWS, Kafka, EventHub, Azure DevOps, GitHub, Databricks
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2w
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Software Developer - Web Development
Alexandria, Virginia, United States
OnsiteFull Time
Systems Planning and Analysis
Systems Planning and Analysis: Provides technical and analytical support to national security agencies.
7+ YOEBachelor’s degree in Computer Science or Software Engineering; 7+ years web development; TS/React; Power Platform; Git; DoD Secret clearance; onsite in Alexandria, VA.
HTML, CSS, JavaScript, TypeScript, React, Power BI, Power Apps, Power Automate, Git
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2w
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Full Stack Developer
Arlington, Virginia, United States
OnsiteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
5+ YOE3+ years JavaScript, 5+ years full stack, degree in CS or related field, web development certifications.
JavaScript, Python, C#, SQL, HTML, CSS, TypeScript, jQuery, Angular, React, Node.js, Flask, Django, MySQL, Teradata, Apache, REST, gRPC, Azure, AWS, Kafka, EventHub, Azure DevOps, GitHub, Websockets, Monolith, Microservices, Serverless, Service Mesh
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1mo
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Software Engineer Level 2
Laurel, Maryland, United States
$130k-$138k/yr OnsiteFull Time
TAP Engineering
TAP Engineering: Provides specialized microelectronics engineering and research for defense agencies.
14+ YOETS/SCI with Poly, 14+ years in software development, Bachelor's in CS or equivalent experience, strong JS/TS, data visualization (D3/Canvas/WebGL), React/jQuery, JSON, UI/UX skills.
JavaScript, TypeScript, D3, SVG, Canvas, WebGL, React, jQuery, JSON
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Full-Stack Engineer
Arlington, Virginia, United States
HybridFull Time
Zetier: Independent software developer focused on secure systems.
5+ YOE5+ years building production full-stack apps; proficient with React/Angular/Vue; strong TS/JS and UI; Python backend; REST; databases; message brokers; distributed teams; active U.S. security clearance.
React, Angular, Vue, TypeScript, JavaScript, Python, Flask, FastAPI, Bootstrap, Material, PostgreSQL, ORM, REST, RabbitMQ, AMQP, Docker, Kubernetes, Figma, uBoot, firmware, IOT, Binary Ninja, IDA Pro
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2mo
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Senior Application Developer
Seattle or Vancouver or Washington or Tacoma or Oakland or Stockton or San Jose or Los Angeles
$110k-$135k/yr HybridFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering and environmental consulting services for infrastructure.
5+ YOEBachelor’s degree; 5-7 years .NET/Node/JS stack; React/Angular/Vue; SQL Server/Oracle; UI/UX; DevOps; mobile deployment; AI libraries.
ASP.NET, C#, MVC, Blazor, Node, Typescript, React, Vue, jQuery, Angular, SharePoint, SQL Server, Oracle, PostgreSQL, TensorFlow, ML.Net, PyTorch, Power BI, Git, CSS, JavaScript, REST
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1mo
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Databricks Apps Developer
Arlington or McLean
OnsiteFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
3+ YOEMinimum 3 years frontend development with React; strong TS/JS, HTML/CSS; Databricks experience including Genie, Delta Live Tables, Model Serving; US Citizenship.
React, TypeScript, JavaScript, HTML, CSS, REST APIs, Databricks, Unity Catalog, Delta Live Tables, Model Serving, Genie, Git, Jira, Confluence
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2mo
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Front-End Software Engineer
College Park, Maryland, United States
$104k-$166k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
3+ YOE3+ years front-end development with HTML/CSS/JS/TS; React/Vue/Angular; REST APIs; SQL/NoSQL; Git/CI/CD; TS/JS; US Citizenship with TS/SCI w/ Poly
HTML, CSS, JavaScript, TypeScript, React, Vue, Angular, REST API, SQL, NoSQL, Git, CI/CD, Python
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AWS Full Stack Developer
Springfield or McLean or Chantilly or Reston
HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years UI/UX with React; 5+ back-end with Java, Python, Go, SQL, or C++; 2+ AWS cloud Native; 2+ IaC; containerization; TS/SCI with polygraph; HS diploma.
React, Java, Python, Go, SQL, JavaScript, TypeScript, HTML, CSS, AWS, Docker, Kubernetes, Terraform, CloudFormation, AWS CDK, MongoDB
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2w
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Engineer
Washington, District of Columbia, United States
$100k-$135k/yr OnsiteFull Time
The Atlantic
The Atlantic: Publishes a magazine and digital journalism on politics and culture.
4+ YOE4+ years full-stack software development; 2+ years full-stack web development; JS/TS and Python; cloud (AWS or GCP); containers; CI/CD.
JavaScript, TypeScript, Python, AWS, GCP, Docker, Terraform, React, Django, GraphQL, CI/CD
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1w
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Full Stack AI Developer
Arlington, Virginia, United States
$95k-$115k/yr HybridFull Time
Enterprise Knowledge
Enterprise Knowledge: Strategic consulting for enterprise knowledge and information management.
1+ YOEFull Stack AI Developer with 1-3 years software development, backend Python and frontend React/JS, AI/NLP, RAG pipelines, SQL, Git, Agile.
Python, Java, JavaScript, TypeScript, React, SQL, Git, Docker, AWS, Azure, GCP, LangChain
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2w
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Software Engineer 3 - II
Annapolis Junction, Maryland, United States
OnsiteFull Time
InterImage
InterImage: Provides IT modernization and cybersecurity services to federal government agencies.
12+ YOETwelve years of software engineering experience in programs of similar scope; Bachelor's degree in Computer Science or related discipline; four years of SWE experience can substitute for a bachelor’s degree.
Javascript, Typescript, React, node.js, Rust, Python, shell script, Kubernetes, Helm Charts, Micro-Services, Service-mesh, Multi-site applications, Load Balancing, Cloud Migration, nifi, JEST, Grafana, InfluxDb, Elasticsearch, Redis, mysql, Apache Superset, RabbitMQ, Kafka, Message Fabrics, Ansible, Salt, Terraform, Web-Sockets, JBLOCKS, CASPORT, Neo4j
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3w
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Senior Software Engineer, Growth
Boston, Massachusetts, United States
$148k-$222k/yr OnsiteFull Time
Klaviyo
KlaviyoNYSE: KVYO: Software platform for automated e-commerce marketing and customer data.
Senior software engineer with full-stack experience, focus on onboarding and user experience, data-driven, AI-aware, leadership and mentoring responsibilities.
HTML, TypeScript, JavaScript, React, Python, Django, MySQL, Cassandra, RabbitMQ, Redis, AWS, Terraform, Ansible, Packer
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2mo
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Associate Software Engineer
Mount Laurel or Arlington
$72k-$114k/yr OnsiteFull Time
Innovative Defense Technologies
Innovative Defense Technologies: Develops automated software integration and testing solutions for defense.
2+ YOEBachelor’s degree and 0–2+ years software development; willing to travel up to 15%; strong frontend, API, and software lifecycle skills.
TypeScript, JavaScript, Git, REST, gRPC, PostgreSQL, SQL, Windows, Linux, React, Angular, Vue
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HiringCafe market data

Javascript Typescript Engineer React Jobs market signals in Leonardtown, MD, 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
60
Hiring companies
42
Fresh sample
48% new in 30d
Salary visibility
72% show pay

Companies appearing in this market

Booz Allen HamiltonAmentumUnitedHealth GroupAmtrakBoeingAlpha OmegaAvalonBay CommunitiesCydecor

Work location mix in visible results

Onsite: 25Hybrid: 21Remote: 4