Top Javascript Jobs in Baltimore, MD

Develop and maintain complex full-stack software systems supporting mission-critical environments. Responsibilities include architecting scalable solutions, processing large data sets, optimizing performance, building reusable components, collaborating with stakeholders, mentoring developers, and supporting the full software development lifecycle from design through deployment and sustainment.

Develop and maintain software supporting U.S. Government mission objectives. The engineer will assist with daily software development responsibilities using Grafana, Bash, Python, JavaScript, React, and TypeScript. The role requires at least three years of comparable software engineering experience, a relevant bachelor’s degree or equivalent additional experience, and an active Top Secret/SCI clearance with favorable polygraph.

Develop and maintain high-scale JavaScript and TypeScript monetization solutions for publisher websites. Own Freestar’s Prebid.js and Prebid Server header-bidding wrapper, including architecture, adapters, modules, releases, and performance. Integrate with Google Ad Manager, GPT, IMA SDK, and programmatic advertising systems. Monitor Core Web Vitals, reliability, and network performance while reviewing code, resolving critical issues, and guiding technical decisions.

Build and maintain scalable JavaScript applications, API integrations, and open-source projects for global clients. Responsibilities include writing and reviewing code, debugging across frontend, backend, database, and network layers, optimizing performance, designing scalable architectures, handling concurrency, documenting technical work, and addressing edge cases. The role is fully remote and includes structured technical growth, peer feedback, and an assessment process involving an OSS hackweek.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

Build and maintain full-stack applications that deliver AI/ML insights through backend services, REST APIs, containerized microservices, and high-performance front-end interfaces. Responsibilities include cloud-native development on Google Cloud or Azure, database management, testing, CI/CD automation, security, troubleshooting, and Agile collaboration.

Designs, develops, tests, deploys, maintains, and troubleshoots complex software systems for government clients. Leads software development teams, translates customer requirements into specifications, integrates middleware and signal repositories, and manages system and subsystem-level design, documentation, quality assurance, and regression testing. Requires extensive Java, C++, XML/XSD, scripting, web framework, Linux/Unix, Docker, and software leadership experience, along with TS/SCI clearance with polygraph.

Gather and decompose customer requirements, create Jira user stories and acceptance criteria, curate sprint backlogs, support developers, conduct functional testing, present features to government customers, collaborate with UX, and participate in Agile ceremonies. The role supports planning, design, implementation, and delivery of mission-critical software systems.

Develop and sustain front-end interfaces for intelligence reporting and geospatial collaboration tools. Responsibilities include enhancing Section 508 accessibility, redeveloping user interfaces, integrating and troubleshooting application interfaces, and performing software development, testing, maintenance, and problem resolution using Java, GWT, PrimeFaces, Quarkus, HTML, CSS, and JavaScript.

Develop accessible front-end applications conforming to Section 508 and WCAG standards. Conduct manual and automated accessibility testing using JAWS and related tools, remediate usability issues, document audit results, and integrate accessibility checks into CI/CD pipelines. Collaborate with designers, developers, QA, DevOps, and product owners in an Agile environment to deliver compliant user interfaces.

Design, develop, and maintain automated UI and API tests using Cypress. Execute test suites, analyze results, document defects, and integrate testing into GitLab CI/CD pipelines. Collaborate with Agile software developers, system engineers, DevOps, and product owners to validate features, improve coverage, and support system modernization.

Develop and improve a software system, utilizing modern frameworks and patterns while collaborating in a team environment. Requires API and data handling expertise.

Develop and enhance classification marking and M365 web-based tools using JavaScript and modern frameworks. Implement features, write unit/functional tests, perform code reviews, containerize apps with Docker, integrate via GitLab CI, troubleshoot, and work directly with customers. Must hold TS/SCI with FSP.

Develop and extend policy-driven classification and M365 web tools using JavaScript/TypeScript and Node.js. Participate in full software lifecycle: requirements elicitation, design, implementation, testing, documentation, code reviews, and customer support. Use AWS, Docker, Git/GitLab, Jest, and Cypress; follow team coding standards and troubleshoot production issues.

The role involves leading the development of a high-performance Web SDK for fraud detection and risk management, implementing algorithms for device fingerprinting, and ensuring security and performance optimization.

Onsite JavaScript developer responsible for fixing Cross-Site Scripting issues, understanding third-party JavaScript communication, ensuring cross-browser compatibility, debugging across platforms/devices, performance tuning across networks/countries, and writing/using JavaScript unit tests.

The Senior Full Stack JavaScript Developer will build and maintain user interfaces using React and Next.js, integrate with Node.js backends, and guide other developers. Responsibilities include ensuring accessibility, performance, and reliability of features, engaging in code reviews, and collaborating closely with product teams.

Design, develop, test, and document classification‑marking and access‑control software for mission systems and M365 apps. Implement features, extend validation tools, create unit and functional tests, Dockerize applications, use AWS and GitLab CI, troubleshoot issues, conduct code reviews, and collaborate with customers and teammates throughout the software lifecycle.