Top Javascript Jobs in Miami, FL

Design, build, and maintain cross-platform mobile applications and end-to-end web features. Implement front-end interfaces, back-end services and RESTful APIs, optimize databases, write tests and documentation, perform code reviews, and collaborate with UX, QA, and DevOps to deliver high-quality, secure, and performant solutions.

Build and maintain Django-based web applications, design RESTful APIs, implement frontend features (HTML/CSS/JS), optimize performance and security, collaborate with cross-functional teams throughout the development lifecycle.

As a Full Stack Engineer, you'll develop full-stack applications using .NET and React, focusing on creating user-friendly interfaces and robust backends for AI integration. Responsibilities include API design, database management, application deployment, code quality assurance, and collaboration with cross-functional teams.

Design, develop, and enhance custom SAP Fiori/UI5 applications; configure Fiori Launchpad; integrate OData services; perform UI debugging, performance optimization, code reviews, unit testing, and documentation while collaborating with backend and functional teams.

Hands-on technical leader and core individual contributor building cloud-native defense/intelligence software. Drive architecture, code reviews, feature delivery, and mentor a small Agile team while implementing DevOps, CI/CD, and robust AWS/EKS-based deployments.

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.

Build and maintain GTM infrastructure and integrations to support Sales, Marketing, and Customer Success. Automate workflows, ensure data hygiene, create reporting pipelines/dashboards, and partner with RevOps and GTM leaders to translate business needs into scalable technical solutions.

Full‑stack staff engineer to ship web products end-to-end, iterate on and expand a suite of sales/CRM-focused tools, define engineering culture and best practices, and hire/mentor future engineers. Must move fast in a small team, engage with users, and solve new problems creatively.

Defines enterprise application architectures, standards, frameworks, and reference implementations for scalable, secure solutions. Evaluates technologies, designs integrations, documents solutions, facilitates discovery and technical workshops, and partners with product, design, and engineering teams. Mentors technical leads and senior engineers while driving architectural best practices and emerging technology adoption. Requires expertise across Java, frontend frameworks, AWS, infrastructure as code, enterprise integration, Salesforce, and distributed application design.

Lead end-to-end design, development, and delivery of full‑stack features; drive architecture and code reviews; coordinate engineering work, write design docs and tests, and participate in Agile ceremonies. Must have blockchain/crypto experience.

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 scalable cloud and web software with focus on infrastructure, performance, and hardware integration for IoT devices. Collaborate with hardware teams to ensure connectivity and high availability, implement new features, and improve system efficiency.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end developers, implement UI/UX designs, write clean maintainable code, and debug front-end issues to ensure high performance across devices and browsers.

Lead and architect scalable web systems, mentor frontend and backend developers, define coding standards and roadmaps, drive implementations using React/Next/Node/NestJS, produce technical documentation, conduct code reviews, and collaborate with product and DevOps to deliver secure, maintainable solutions.

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.

Perform load, stress, and endurance testing across e-commerce storefronts, internal SaaS tools, and AI agent services. Design test strategies, execute tests with tools like JMeter/Gatling, analyze observability metrics, identify bottlenecks in Node.js/NestJS, PostgreSQL, and Redis, and integrate performance tests into CI/CD while collaborating with SRE and backend teams.

Design, develop, and operate monitoring and observability solutions for flagship supercomputers. Build data pipelines to process large telemetry and logs, respond to incidents, implement mitigations, write postmortems, and improve reliability, performance, and operational runbooks at scale.

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.

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.

Work full-stack on a small mobile-focused engineering team building a product-first React Native app. Contribute to product ideation, UX, analytics, and deliver features across frontend and backend (GraphQL, PostgreSQL). Report to Head of Engineering and collaborate on technical decisions, pair-program, and help shape product strategy in a fast-paced startup.

Leads engineering teams delivering secure, scalable software for private banking and payment platforms. Oversees architecture, development, integrations, data flows, production stability, regulatory compliance, testing, release practices, risk reduction, and continuous improvement. Partners with product, architecture, security, risk, and business stakeholders while coaching engineers, aligning capacity to priorities, and advancing AI-native development tools.

Join Canonical as a graduate software engineer to write high-quality code across the open source stack, work on Linux system-level and application projects, engage with communities, respond to customer issues, and develop security-aware software while collaborating remotely and attending biannual in-person team sprints.

Lead a software engineering pod while contributing hands-on code to build and scale SaaS platform features. Responsibilities include architecture and technical design, production development, code reviews, troubleshooting, planning, mentoring, cross-team collaboration, AI-assisted development, and ensuring maintainable, secure, scalable, high-quality delivery.

Own operations and reliability for hyperscale Azure GPU clusters and interconnect fabrics. Lead production incident triage, mitigation, recovery, root-cause analysis, and cross-stack debugging across hardware, GPUs, PCIe, firmware, drivers, and software. Develop automation, telemetry, diagnostics, playbooks, and escalation frameworks to improve observability, operational readiness, and mean time to mitigation for large-scale AI and HPC workloads.

Full Stack Engineer responsible for building responsive frontends (JS/TS, React preferred) and backend services (Python, Go, or Node.js/TypeScript), designing RESTful APIs, managing databases (Postgres/MongoDB), and deploying on cloud (AWS). Collaborate with teams, optimize performance, and apply DevOps practices (Docker, Kubernetes, CI/CD). Requires strong problem-solving, communication, and 3+ years of experience.