Top Senior Javascript Jobs in Miami, FL

As a Senior Frontend Engineer, you will design and build web applications, owning major UI projects, collaborating with cross-functional teams, and optimizing performance for a seamless user experience.

Deliver and support Curam implementations: lead technical workshops, produce functional/technical designs and prototypes, develop and unit test Curam extensions in a J2EE environment, configure application servers and integrations, use Eclipse, and support system operations and troubleshooting.

Lead and architect front-end and full-stack features, balancing performance, accessibility, and maintainability. Partner with design, back-end, and product teams, mentor junior developers, improve tooling and workflows, review code, and evaluate emerging tools (including AI) to deliver high-quality interactive experiences.

Lead the development of a cutting-edge Dapp for ultra-low latency trading across multiple blockchain networks, managing complex state architectures and enhancing transaction protocols for a decentralized trading experience.

Lead the quality engineering efforts for Replicant's AI platform by defining standards, improving testing strategies, and mentoring a QA team to ensure high-quality outputs across software systems.

Build and maintain interactive software and hardware-driven experiences across web, real-time graphics, games, and installations. Prototype, architect, estimate, and support projects; collaborate with designers, producers, and clients; handle on-site installation and technical planning.

The Senior Software Developer will design and develop web and mobile applications, collaborate with scientists, implement APIs, and mentor developers.

The role involves designing and building internal web applications for Nebius, focusing on automating data center operations and developing user interfaces for infrastructure management.

Lead ServiceNow platform architecture and governance, define standards and CI/CD pipelines, design secure integrations with ERP/HR/security/data-protection systems, guide development partners, and drive automation using Flow Designer, IntegrationHub, and Orchestration across ITSM/ITOM/SecOps modules.

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

Design, build, and deliver AI-driven Salesforce Agentforce agents and intelligent automations. Develop integrations, test automations, debug Apex/JavaScript/Python code, produce technical documentation, mentor junior engineers, participate in DevOps and QA, and support transformational projects and high-priority incidents.

Designs, develops, tests, documents, and maintains software solutions. Reviews and improves existing systems, remediates security issues, participates in planning and user story analysis, mentors engineers, and follows development best practices.

Design, develop, and implement enterprise-scale web and API-based applications. Collaborate with business analysts and architects to build solutions using low-code/no-code BPMN tools, MuleSoft Anypoint, .NET, MS SQL Server, and web technologies. Maintain secure remote work practices for government CUI environments and participate in Agile ceremonies.

Design and implement AI-powered educational software, focusing on generative AI systems, mentor peers, and ensure scalable, secure architecture.

Lead end-to-end testing for SAP Ariba and SAP S/4HANA procurement solutions. Define test coverage, create and maintain manual and automated tests (Playwright/Java or JS), validate sourcing-to-pay workflows and integrations, manage defects, support release/regression cycles, and mentor team members on QA and automation practices.

Design and own AI-agent-driven test workflows and the automated verification framework. Build test context, select models and tooling, validate AI-generated code and tests, operate test automation across UI/API/mobile/data, ensure security and compliance, mentor teams, and continuously improve agent orchestration and observability.

Design, develop, maintain, and extend healthcare billing and enrollment software. Collaborate with architects and engineers on APIs and architecture, triage production issues, write unit tests, perform impact analysis, research solutions, follow secure coding practices, and mentor junior engineers on an Agile scrum team.

Lead enterprise ServiceNow strategy, governance, and architecture; own platform roadmap, tenant onboarding, upgrades, vendor relationships, AI feature adoption, test automation, and CoE practices to ensure secure, scalable multi-tenant operations.

Lead full-stack development across backend and frontend systems, implement and maintain features, fix bugs, collaborate with product and design, support client projects, and contribute to a distributed remote engineering team focused on high-impact startup missions.

Design, develop, test, deploy, and maintain full‑stack enterprise applications in AWS. Build front-end components (Angular/TypeScript), backend services (Java/Node.js), REST APIs, integrations, and relational database solutions. Troubleshoot production issues, participate in architecture and design, support CI/CD and deployment, conduct code reviews, mentor developers, and collaborate with Product, QA, and DevOps in Agile teams.

Lead design, build, and deliver enterprise Apigee API management solutions (Apigee X/Hybrid). Architect APIs, mentor teams, support pre-sales, create PoCs, define governance, implement security integrations, and support CI/CD and production deployments.

Lead front-end development using React and JavaScript to build responsive, high-performance web applications. Collaborate with UX designers, build reusable components, implement dynamic forms and drag-and-drop features, optimize for cloud deployment and security, mentor junior developers, and maintain design standards and testable, maintainable code.

Design, build, and maintain scripts, APIs, and automations for workplace systems and AI/agent integrations. Develop integrations between collaboration tools and identity platforms, implement observability, improve onboarding/offboarding workflows, and collaborate with IT, Security, and People teams to embed secure, scalable automation. Participate in pilots for LLMs/agents and contribute to documentation, code review, and reusable integration libraries.

Design, build, and maintain scripts, APIs, integrations and agentic automations for workplace systems (collaboration tools and identity platforms). Implement monitoring and observability, automate onboarding/offboarding and access workflows, integrate LLMs/agents for productivity, collaborate with IT/security/People teams to ensure compliance, and contribute to code review, documentation, and reusable integration templates.

Design and deliver complex, scalable SaaS features end-to-end using AI-assisted development tools. Own specifications, implement and review AI-generated and human code, build REST APIs, maintain UI and backend services, drive AI-assisted workflows, and mentor cohort engineers on tooling, spec writing, and best practices.