Top Remote Javascript Jobs in Washington, DC

Owns end-to-end QA coverage across firmware, cloud services, and mobile applications for IoT products. Tests device-to-cloud communication, APIs, business logic, connectivity failures, offline operation, OTA updates, and rollback scenarios. Analyzes device and cloud logs, develops test data strategies, prioritizes automation scenarios, and maintains smoke and regression testing processes. Requires systems thinking, embedded and mobile testing experience, API testing, Agile QA processes, and familiarity with relevant test management tools.

Lead and mentor a team of engineers while contributing hands-on to complex features. Define architecture, drive development best practices, conduct code reviews, coordinate cross-functional requirements, and ensure timely delivery of high-quality ecommerce marketplace software.

Design, build, and optimize responsive, high-performance front-end interfaces for a Web3 DEX using modern JavaScript frameworks and TypeScript. Collaborate with designers, product, and back-end teams to integrate blockchain APIs and smart contracts, mentor junior developers, troubleshoot issues, and contribute to mobile-first/PWA development while ensuring scalability and maintainability.

Develop, test, modernize, and sustain secure full-stack mission software using Java and JavaScript. Build UI components, backend services, APIs, messaging integrations, database functionality, automated tests, and deployment workflows. Support XML and JSON data exchange, CI/CD modernization, security scanning, SBOM generation, defect resolution, code reviews, release preparation, documentation, and customer issue investigation. Collaborate with product, systems engineering, QA, operations, and program management teams in defense and intelligence environments.

Supports deployed DoD mission software through customer troubleshooting, product sustainment, release and patch delivery, installation and validation testing, documentation, training, and field support. Investigates logs, configurations, system behavior, and customer reports; supports Java applications and web environments; coordinates with development and support teams; and assists with issue resolution, vulnerability remediation, and operational deployments. The role requires an active Secret clearance and eligibility for Top Secret SCI with full-scope polygraph.

Senior iOS Developer to design and build secure, high-performance iOS apps using Swift (SwiftUI/UIKit). Implement webview integrations (WKWebView/ASWeb), ASWebAuthenticationSession for OAuth/SSO, JavaScript interop, and native features (camera, push, maps). Ensure responsive web content handling and secure data management. Remote role but must be Bangalore-based with weekly (~1 hour) client office visit to collect a device.

Leads architecture and development of Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, selecting technologies, developing analytics and infrastructure, solving complex problems, guiding product direction, mentoring engineers, and improving scalability and sustainability. The role collaborates across engineering, product, design, QA, Mozilla, and open-source communities in a fully remote environment.

Lead architecture and technical direction for Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, making technology decisions, developing analytics and infrastructure, solving complex problems, mentoring engineers, collaborating across product and design teams, and improving system scalability and maintainability. The role also contributes to product growth, open-source collaboration, and data-informed decisions within a fully remote international team.

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.

Lead the architecture, development, and operation of enterprise-grade full-stack software for clinician-facing and performance-management experiences. Design distributed systems, drive technical initiatives, improve scalability and maintainability, adopt modern technologies, deliver iterative releases, and collaborate across organizations. Mentor engineers and establish strong engineering practices. The role requires polyglot programming, cloud platforms, modern front-end development, SQL, distributed systems, and production operations experience.

Lead full-stack engineering for a browser extension and backend services, drive AI integrations with strong data privacy, mentor and recruit engineers, manage complex integrations, ensure code quality and SOC2 compliance readiness, and make architectural decisions to scale the platform.

Build and maintain backend services and APIs, write unit tests, debug and optimize systems, support migration from Supabase to cloud, improve reliability, and integrate AI/RPA workflows while learning under senior mentorship.

Lead backend development to scale and harden API infrastructures, implement unit testing playbooks, optimize core algorithms, support migration from Supabase to a robust cloud provider, ensure system reliability and scalability, collaborate with frontend and DevOps, and integrate AI workflows and RPA where applicable.

Build and maintain responsive, accessible React/NextJS web interfaces and support Chrome extension development (Manifest V3). Integrate with backend APIs or WebSockets, optimize performance, write tests, perform code reviews, monitor and document extension and web app behavior, and collaborate with cross-functional teams.

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.

Support and maintain complex applications and infrastructure for a government customer: monitor and triage events, troubleshoot Linux/Windows servers, deploy and integrate software (AWS, CloudFormation, RDS), use Salt for configuration management, work with databases (Oracle, MongoDB, PostgreSQL, MySQL), write SOPs, manage security groups, and support after-hours deployments. Requires strong communication and collaboration with developers and vendors.

Build and maintain fundraising technology that supports donors, fundraisers, donation processing, and reporting. Responsibilities include website development, backend integrations, legacy-system maintenance, data processing, testing, launches, bug fixes, incident ownership, and on-call support during peak donation periods. The role requires autonomous work with Laravel, PHP, JavaScript, HTML, CSS, Salesforce, WordPress, SQL, and partner CSV files, along with close collaboration with non-engineering fundraising teams.

Build web-first product experiences, reusable components, RESTful APIs, and scalable data pipelines for Wikimedia’s web and mobile app surfaces. Deliver initiatives from discovery through production, emphasizing accessibility, performance, testing, observability, and maintainability. Collaborate with product managers, designers, analysts, and native app engineers in a fully remote environment while prioritizing user impact, technical quality, and pragmatic delivery.

Build and operate infrastructure software for Netflix’s Open Connect CDN. Responsibilities include developing microservices, designing orchestration for globally distributed appliances, creating fleet data models and APIs, and improving platform availability, scalability, observability, and reliability. The role requires hands-on architecture, implementation, debugging, and collaboration across engineering, networking, video, gaming, and operations teams.

Develop and maintain web applications, APIs, integrations, automation scripts, and AI-enabled features using JavaScript, Python, and PHP. Connect internal business systems with third-party platforms, support enterprise platform customizations, troubleshoot workflows, and collaborate with technical teams, business users, vendors, and development partners. Participate in testing, documentation, version control, and change management while gaining experience with applied AI integration.

Leads the end-to-end development of an AI-enabled revenue cycle management platform, spanning frontend, backend services, APIs, event-driven workflows, data models, and AI agent orchestration. Partners with users, product, operations, and business leaders to deliver measurable outcomes. Sets technical direction, mentors engineers, promotes AI-assisted development, and ensures secure, reliable, HIPAA-compliant software through strong testing and monitoring.

Designs, develops, tests, implements, and maintains scalable Salesforce Sales Cloud and Service Cloud solutions. Builds Apex, Lightning Web Components, Flows, integrations, and platform capabilities; troubleshoots complex Salesforce and enterprise-system issues; supports production operations, observability, CI/CD, and DevOps improvements. Provides technical guidance to junior and mid-level engineers and collaborates with architects, product owners, business partners, and technology teams.

Lead the architecture and delivery of large-scale React and React Native applications across web and mobile. Establish frontend standards for performance, accessibility, reliability, and maintainability; build shared component libraries and design systems; resolve complex frontend and cross-stack issues; partner with product, design, and backend teams; and mentor engineers while shaping technical strategy across multiple product areas.

Lead architecture and delivery of complex web and mobile product initiatives. Build React and React Native applications, scalable components, APIs, data models, and shared libraries. Establish engineering standards, improve testing, performance, security, and reliability, and optimize database queries. Mentor engineers, guide technical decisions, and partner with leadership and stakeholders to shape the product roadmap. This is a fully remote role supporting veterinary clinic operations and supply-chain workflows.

Build and maintain features across Vetcove’s web, backend, and mobile platforms. Responsibilities include developing React and React Native applications, creating reusable components, improving test coverage, designing performant and secure data models, optimizing database queries, writing API endpoints, and collaborating with engineering, product, and company leadership in a fully remote environment.