Top Senior Javascript Jobs in Miami, FL

Leads the design, development, deployment, maintenance, and optimization of scalable full-stack software systems. Responsibilities include coding, debugging, code reviews, API development, cloud-native deployment, testing, monitoring, performance optimization, production support, incident response, technical mentoring, and establishing development standards. The role collaborates cross-functionally, drives API-first and AI-enabled engineering practices, and participates in on-call support.

Develop and maintain web and AI-based enterprise applications through design, coding, testing, debugging, documentation, and code reviews. Integrate AI-assisted and agentic development tools into engineering workflows, manage context and harness engineering, and mentor teammates on responsible AI use. Collaborate across teams, lead projects and design efforts, improve processes and technology choices, and build secure, scalable services using modern backend stacks, REST APIs, databases, cloud infrastructure, and CI practices.

Designs, implements, and maintains secure integrations between IAM platforms and external systems such as ID.me, ServiceNow, and the ELK Stack. Develops APIs, middleware, data transformations, and iPaaS workflows; configures monitoring and alerting; troubleshoots cross-platform data flows; and ensures secure transmission and federal compliance. The role also produces technical documentation and collaborates with agile teams on development, testing, and deployment.

Leads and mentors the AgentMate application development team while remaining hands-on with C#/.NET development. Owns engineering execution, application security, PCI compliance, reliability, quality, observability, technical debt, and production support. Partners with Product, Delivery, Infrastructure, Security, QA, and business stakeholders to deliver secure, scalable applications. Responsibilities include architecture and coding, threat modeling, vulnerability remediation, CI/CD improvements, incident resolution, technical planning, documentation, hiring, and team development.

Develop and expand Laravel/PHP backend and Vue.js frontend applications for Relocity’s global mobility platform. Responsibilities include architecture, implementation, testing, code reviews, debugging, documentation, REST API development, database optimization, and troubleshooting. The engineer will own complex technical problems, collaborate with Product and Design, apply product and user-experience thinking, and use AI-enabled development tools to accelerate software delivery.

Build and deliver full-stack features for a web-based broker platform, collaborate with product and design, manage technical debt, shape architecture for scalability, participate in code reviews, and adopt AI-powered developer tools.

Develops modern, responsive, accessible front-end interfaces, reusable component libraries, templates, and interactive features for federal and DoD-aligned IT environments. Collaborates with UX, backend, CMS, and product teams on API integrations, performance optimization, accessibility compliance, cross-browser troubleshooting, documentation, code reviews, and Agile delivery. Requires an active Secret clearance, bachelor’s degree, and at least seven years of front-end development experience.

Develop and maintain responsive front-end interfaces for federal and DoD-aligned digital properties. Responsibilities include UI and CSS updates, Section 508/WCAG accessibility improvements, content-driven template and component changes, cross-browser testing, performance optimization, design system support, code reviews, and deployment validation. The developer collaborates with UX, design, content, and backend teams while following enterprise brand, security, documentation, and version-control standards.

Develop, modernize, test, integrate, deploy, and maintain secure enterprise web applications supporting Department of Defense missions. Build Oracle APEX applications, PL/SQL database solutions, RESTful APIs, and cloud-hosted services. Collaborate on DevSecOps, CI/CD, cybersecurity compliance, vulnerability remediation, testing, performance, and production support. Participate in Agile ceremonies and work with technical teams and Government stakeholders to deliver accessible, reliable digital services.

Develop responsive, accessible enterprise user interfaces using HTML, CSS, and JavaScript. Build interactive components, translate UX designs into production code, integrate APIs, ensure WCAG and Section 508 compliance, troubleshoot cross-browser issues, optimize performance, and support component libraries. Collaborate with designers, backend engineers, analysts, and product owners in Agile environments while documenting standards and implementations.

Build and maintain scalable web and mobile applications across the full software development lifecycle. Own front-end and back-end development, design API infrastructure, integrate internal and third-party services, and deploy end-to-end solutions. Collaborate with product, design, engineering, vendors, and business stakeholders to solve operational challenges. Mentor engineers, communicate technical direction, and deliver high-performing, customer-focused products.

As a Fullstack Engineer, you'll drive user growth through performance-focused web experiences, leading frontend projects, and optimizing conversion funnels.

Design, build, and maintain scalable Salesforce CRM solutions including custom development, automation, integrations, CI/CD, and production support. Partner with stakeholders to translate requirements, drive engineering best practices, troubleshoot complex issues, mentor junior staff, and improve platform governance, performance, and long-term scalability.

Designs, develops, and supports enterprise ServiceNow solutions across ITSM and HRSD. Builds custom applications, workflows, integrations, scripts, portals, user experiences, and Playbooks while supporting ServiceNow AI capabilities. Performs full-stack development, ensures security and compliance, translates business requirements into scalable solutions, and participates in architecture, code reviews, governance, and stakeholder collaboration.

Lead frontend architecture and development for an AI-powered voice platform. Build responsive dashboards and reusable components, integrate real-time WebSocket and WebRTC voice capabilities, consume AI backend APIs, manage complex application state, and optimize performance, accessibility, and reliability. Mentor frontend developers, establish coding standards, collaborate with designers and backend teams, and develop prototypes, testing strategies, and production-ready interfaces.

Build and improve ClickUp’s core product experiences using Angular and React. Responsibilities include architecting reusable frontend code, collaborating with product, design, backend, integrations, and QA teams, improving performance and usability, maintaining unit and integration tests, resolving complex bugs, following state-management patterns, and mentoring teammates in a fast-paced environment.

Own the architecture, development, performance, and support of interactive 3D product configurators using WebGL and JavaScript frameworks. Integrate configurator recipes with Salesforce Commerce Cloud, SAP S/4HANA, PLM, PIM/MDM, middleware, OMS, and WMS systems to ensure accurate SKUs, BOMs, pricing, availability, and fulfillment. Lead technical design, code reviews, performance optimization, accessibility, data contracts, asset pipelines, personalization moderation, and end-to-end commerce integration.

Leads architecture, development, testing, deployment, and technical strategy for guest-facing e-commerce web applications. Owns vacation search, cruise reservations, pre-cruise purchases, and CMS capabilities. Drives AWS migration, Amazon EKS management, blue-green deployments, scalability, performance, security, compliance, and operational excellence. Establishes engineering standards, mentors teams, manages vendors, mitigates technical risks, and collaborates across product, marketing, security, data, and enterprise architecture stakeholders.

Lead architecture, development, testing, deployment, and technical strategy for Princess’s customer-facing e-commerce web platform. Own vacation search, cruise reservations, pre-cruise purchases, and CMS capabilities while improving performance, scalability, usability, SEO, availability, and compliance. Lead migration of on-premises applications to AWS, manage Amazon EKS Kubernetes environments, implement blue-green deployments, establish engineering standards, mentor teams, manage vendors, and coordinate cross-functional delivery.

Architect and oversee development, testing, deployment, and operational excellence for Princess’s customer-facing e-commerce web platform. Lead AWS cloud migration, Amazon EKS and Kubernetes management, blue-green deployments, performance optimization, scalability, security, and software development lifecycle standards. Own web products supporting vacation search, cruise reservations, pre-cruise purchases, and content management. Mentor engineering teams, manage vendors, mitigate technical risks, and collaborate cross-functionally to drive innovation, reliability, and revenue growth.

Lead and grow a 16-person engineering organization across four AI-focused pods. Set technical direction, guide AI-native product and engineering development, manage cross-team dependencies, and oversee delivery, quality, reliability, security, and velocity. Partner with product, design, and leadership on scalable full-stack systems, mentor engineers and technical leads, and promote strong practices in architecture, testing, observability, incident response, and CI/CD within a HIPAA/SOC 2-aware environment.

Build scalable full-stack applications integrating healthcare insights with browser-based and Windows EHR systems. Develop products using FHIR and HL7 interoperability standards, collaborate on technical roadmaps, and implement performant solutions. Mentor junior engineers, conduct code reviews, make technical decisions, and partner with engineering, product, and business stakeholders using Agile processes.

Build and ship cross-platform React Native features for iOS and Android consumer applications. Own mobile functionality end to end, including UI, networking, persistence, offline support, testing, performance, observability, and store releases. Collaborate with Product, Design, and QA, maintain native modules when needed, and use AI-assisted tools to improve development speed and quality.

Develop and maintain Microsoft Power Platform solutions for CDC mission programs. Responsibilities include designing solution architectures and data models, building Power Apps and Power Automate workflows, configuring Dataverse, modernizing legacy applications, integrating APIs and Azure services, reviewing technical solutions, supporting Agile delivery and testing, troubleshooting defects, documenting deployments, and maintaining production systems. The role also ensures federal security, privacy, governance, and Section 508 accessibility compliance.

Own and advance Yahoo’s enterprise Node.js development environment, including runtimes, packages, container images, internal integrations, and CI/CD workflows. Manage runtime lifecycles, security updates, dependencies, releases, testing, automation, and troubleshooting. Support GitHub Enterprise and GitLab Enterprise while integrating AI programming tools to improve developer productivity. Partner across engineering and security teams, and document platform changes, migrations, and deprecations.