Top Senior Javascript Jobs in Washington, DC

Develop, test, deploy, and maintain full-stack web applications using .NET and React. Design scalable front-end and back-end solutions, troubleshoot technical issues, participate in code reviews, and follow software development best practices. Collaborate with designers, product managers, and developers throughout the software lifecycle. The role requires onsite work in Washington, DC and an active Top Secret clearance.

Develop and architect software applications for complex intelligence-sector challenges. Responsibilities include designing collaborative solutions, developing with Node.js and TypeScript, working with databases and search technologies, and using automated testing tools for testing and maintenance. The role requires 6+ years of application or software development experience, a bachelor’s degree, and TS/SCI clearance with polygraph.

Develop and lead full-stack applications and DevSecOps cloud frameworks for a federal customer. Responsibilities include systems analysis, architecture, software design, integration, implementation, documentation, modernization, security compliance, and advising stakeholders on system improvements. The role uses Java, React, AWS, Docker, MySQL, DevOps tools, testing frameworks, and distributed-system technologies in an Agile environment.

Lead and mentor application development teams to design and implement enterprise IT solutions, including cloud migration, AI integration, and legacy modernization. Oversee contract development work, present technical briefings to government stakeholders, track progress against requirements, identify efficiency improvements, and direct major technology initiatives. Requires security-cleared collaboration with government program management.

The Web Developer will design and implement analytics solutions, maintain existing systems, and troubleshoot tracking issues, requiring extensive knowledge in web analytics and development.

Develop and maintain frontend and backend components across cloud-based full-stack applications for national security missions. Participate in agile teams, code, review, deploy, provide Tier 3 support, document deployments, and support off-hours releases while working primarily onsite.

Design, build, and maintain full-stack web applications and backend systems. Lead API/GraphQL development, implement CI/CD and automated tests, perform code reviews, collaborate with UX/product, train users, and translate requirements into scalable, secure software using React, Node.js, PHP and MySQL.

Design and implement geospatial components of an agentic AI system: build ArcGIS-based import/validation/storage of authoritative hazard geometry, develop deterministic polygon validation and REST APIs, integrate LLM-driven geo-language features, implement secure gov-cloud hosting and audit logging, and coordinate with alerting SMEs and system agents to ensure standards-compliant, human-approved alert areas.

Build and productionize customer-facing data and AI solutions on Databricks. Own architecture and design decisions while delivering scalable data pipelines, applications, ML/AI integrations, and user interfaces. Lead technical project delivery, advise enterprise stakeholders, train customers, resolve implementation issues, and contribute reusable engineering assets and product feedback. The role requires strong cloud, distributed computing, software engineering, MLOps, documentation, and customer engagement skills, with travel to customers approximately 20% of the time.

As an AWS Developer, you will design and implement cloud solutions using AWS services, Java development, and web technologies while adhering to enterprise standards.

Own technical delivery for defense customers: integrate Navigator with existing logistics systems, build and optimize data pipelines, create onboarding playbooks and tooling, troubleshoot escalations, and feed customer needs into product roadmap while representing Gallatin on-site and at reviews.

The GIS Analyst leads GIS solution development, analyzes database issues, manages reporting, and supports decision-makers with geospatial data management. Duties include mentoring staff, using GIS software, and creating maps and workflows using SQL and Python.

The Senior UI Developer will be responsible for designing user experiences for web applications, developing external facing applications, and maintaining UI frameworks, ensuring standards and best practices.

The Sr. Java Developer will modify existing software, create unit and integration tests, work with Agile teams, and resolve technical issues in applications.

The role requires analyzing, modifying, and testing Java applications, creating unit tests, and participating in Agile teams, requiring 5+ years of Java experience.

The Qlik Architect will design and build BI tools, develop Qlik Sense visualizations, SQL data models, and collaborate with teams to meet business requirements.

Develop and implement a modern web information portal using front-end technologies, ensuring compliance with UX and 508 standards. Collaborate with stakeholders and integrate systems while managing project timelines and quality.

The UI Developer will focus on front-end web and mobile application development, mentor other developers, track unit testing, and must stay updated on UI technologies. Requires Agile methodology experience.

The .Net Developer will design, develop, and maintain software applications, lead initiatives, document requirements, and resolve software issues.

The Sr Java Developer will lead software development tasks, drive technical design, perform code reviews, and ensure project milestones are met, specifically in healthcare projects.

The UI Developer is responsible for researching and implementing new technologies, mentoring team members, and developing web and mobile applications using various frameworks and best practices.

The Java Developer will work on full lifecycle development of a multi-tiered JEE application, collaborating with analysts and clients to refine requirements and maintain documentation.

The Senior UI Developer will design user experiences for complex web applications, develop external-facing apps, and ensure best practices in web standards and accessibility.

The role involves designing and executing automated testing frameworks, collaborating with stakeholders to develop test strategies, and ensuring software quality through comprehensive testing. Responsibilities include integrating tests into CI/CD pipelines and tracking defects in tools like Azure DevOps and Jira.

The UI Developer will work with new technologies, develop front end code, mentor team members, and handle technical issues. Key responsibilities include driving unit testing, documenting best practices, and collaborating with teams on various projects using Agile methodologies.