Top Remote Javascript Jobs in Washington, DC

Founding Growth Engineer to own and build a repeatable growth engine: rebuild and instrument the submission funnel, run A/B experiments, scale acquisition channels, fix attribution and analytics, build lifecycle messaging (push, email, SMS) infrastructure, and balance marketplace supply and demand while partnering with founder and marketing.

As an IT Software Engineer, you will develop internal applications, automate IT processes, and enhance security workflows to ensure compliance and operational efficiency in post-acute care technology.

The Fullstack Application Developer will design, build, and maintain a platform for marketing teams, focusing on both front-end and back-end development while mentoring junior developers.

Support building and redesigning responsive, mobile-friendly websites; create wireframes and sitemaps; develop front-end UIs and assist with back-end tasks; optimize for performance, scalability, and SEO; participate in brainstorming, debugging, testing, and follow clean coding and version-control best practices under developer mentorship.

Design, develop, and maintain backend and/or frontend features; own scoped projects from implementation through delivery; collaborate with distributed product and design teams; write clean, maintainable, well-tested code; participate in code reviews and engineering best practices.

Contribute to development by writing, testing, and maintaining code under senior guidance; participate in code reviews, standups, and sprint planning; debug and resolve application issues; collaborate remotely and continuously learn new tools and best practices.

Lead development and maintain Microsoft Dynamics 365 CE Sales solutions, build forms, workflows, plug-ins, integrations, and reusable code. Drive DevOps practices, perform code reviews, lead design/POC efforts, mentor engineers, collaborate with product and QA, support deployments and production troubleshooting.

Join as a full-stack software engineer to design, develop, and maintain web applications and services. Collaborate cross-functionally, write clean code, perform code reviews, debug issues, and stay current with industry trends.

Build and maintain secure, scalable wallet integrations and transaction flows across web and mobile. Implement signing pipelines (EIP-1559/EIP-712), connection/session handling, transaction building, gas estimation and fallback strategies, nonce and re-org handling, and collaborate with backend and frontend teams to ensure secure, reliable wallet UX and execution across multiple chains.

Design and implement scalable web applications while raising engineering innovation standards. Communicate technical solutions to diverse stakeholders and collaborate with teams to deliver products.

Build and maintain end-to-end web applications powering sales and operations. Design tools for quoting, scheduling, and fulfillment, integrate AI into products, collaborate on UX, ship high-impact features, and contribute to architecture, deployment, and engineering culture.

Full-stack feature-team engineer working across UI, JavaScript, and backend to build scalable investment portfolio management web applications. Gather requirements with product and users, design solutions, implement and deploy code, and operate in Linux environments. Emphasis on strong computing fundamentals, Ruby on Rails proficiency, user workflow understanding, and clear communication.

Design, develop, customize and maintain enterprise Sitecore solutions (versions 9/10, SXA, JSS, XM Cloud). Produce technical specs, implement components, test and debug in test and production, support teammates, perform demos to customers, and escalate/resolve issues.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Join as the founding full-stack engineer to extend a TypeScript React/Next.js prototype, design product features, integrate AI/OCR, write tests and infrastructure, talk to users, and iterate quickly to drive growth.

Develop and deploy Salesforce Marketing Cloud solutions: build email templates and web pages (HTML/CSS/JS), write AMPScript/SSJS/WSProxy, manage Automation Studio and Journey Builder, create integrations via REST/SOAP APIs, design data models with SQL and data extensions, document setups, and collaborate across teams while owning technical decisions.

Volunteer Principal Front End Developer to build React/React Native web and mobile features, mentor engineers, implement scalable full‑stack solutions, ensure cross‑browser compatibility and testing, work with Node/MongoDB/AWS, attend weekly standups, and support a fundraising launch. Minimum 4 hours/week commitment.

Volunteer senior engineer to develop a cross-platform medical/wellness app (web, iOS, Android). Own full SDLC: design, coding, testing, data models, pipelines, deployments, and collaborate in Agile processes. Attend weekly standups and commit at least 4 hours weekly.

Volunteer senior developer to design, build, and maintain a cross-platform medical scheduling app (web, iOS, Android). Participate across the full development lifecycle: design, coding, testing, CI, deployments, code reviews, production support, incident management, and platform architecture. Attend weekly standups and commit at least four hours per week.

The Senior Software Engineer will design and maintain MediaWiki's backend components, ensuring quality and operational excellence across the platform while mentoring team members and aligning with WMF strategies.

Lead design, development, and maintenance of SmithRx frontend features using JavaScript and React while ensuring high-quality code and scalability. Collaborate with product teams and mentor junior engineers.

Design and build AI-augmented test tooling and automated test infrastructure across mobile, web, and backend. Integrate testing into engineers' workflows (IDE, CI, monitoring, chatops), define quality gates, instrument AI usage and costs, ensure secure handling of PHI, and produce reusable libraries, documentation, and training to help teams adopt automated quality workflows.

Develop, enhance, and maintain enterprise web-based GIS applications, dashboards, APIs, and geospatial services. Integrate GIS with enterprise systems, support ArcGIS Enterprise, assist modernization to cloud, perform testing, troubleshooting, deployment, documentation, and user support within federal environments.

Build and maintain backend systems, APIs, and data infrastructure powering member experiences and clinical workflows. Collaborate with frontend and product teams, ensure code quality, debug production issues, optimize performance and scalability, and propose new technologies.

Lead design, develop, and maintain scalable full-stack web applications. Mentor engineers, perform code reviews, troubleshoot production incidents, optimize performance, ensure API-first design, support cloud-native deployments (Kubernetes), and participate in on-call rotations.