Top Senior Javascript Jobs in Miami, FL

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.

Senior full‑stack engineer responsible for building production-quality Salesforce platform capabilities, integrations (MuleSoft, REST/SOAP), AI-enabled tooling (Claude plugins, MCP servers), CI/CD, and reusable libraries. Mentor engineers, run architecture/code reviews, and collaborate cross-functionally to deliver scalable, secure cloud-native solutions using Python, LWC, Apex, and AWS.

As a Staff Software Engineer, you will develop backend architecture, collaborate with stakeholders, mentor juniors, and ensure software quality while leveraging various technologies and AWS platforms.

The Senior Solutions Architect leads the design of scalable software solutions, manages a team, and defines technical architectures while ensuring high performance and reliability across multiple systems.

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

Define and drive full-stack architecture and technical vision across teams, write high-quality production code, lead zero-to-one projects, productionize ML systems, own reliability and SLOs, mentor senior engineers, and align engineering roadmaps with product and company strategy.

Design, develop, and document Salesforce solutions (Apex, LWC, Visualforce) and integrations; lead small developer teams; build APIs, data migrations, and test plans; ensure code quality and mentor others while evaluating and adopting AI-enabled tools.

Lead and technically supervise cross-functional Agile teams building and rearchitecting HIS software products. Hire, mentor, set technical direction, prioritize backlogs, drive CI/CD and quality, coordinate with product and business stakeholders, and champion Agile practices to deliver cloud and on-premises solutions that improve healthcare outcomes.

Design, build, and operate high-scale Customer Care and Identity systems using React, TypeScript, Java/Node.js. Lead AI-first workflows, own end-to-end full-stack features, implement AI-driven efficiencies, ensure security and reliability, mentor peers, and collaborate cross-functionally on integrations and operational excellence.

Lead and deliver complex customer implementations, debug and build integrations, drive architectural decisions, run technical discovery, mentor junior engineers, and write production/integration code (Python, JavaScript, SQL). Serve as technical escalation and represent FDE in product and cross-functional discussions.

We are seeking a Senior Frontend Software Engineer to build advanced web applications using JavaScript and ReactJS, collaborating with a team to enhance user experiences.

Join the Entefy team as a Senior Full Stack Engineer to build a scalable full stack application enhancing digital interaction for global clients.

Partner-facing senior technical role that helps schools integrate with GiveCampus, advises advancement teams, masters major advancement CRMs, builds integration tools and custom applications, and collaborates with product and engineering to surface partner needs and shape the platform roadmap.

Lead full-stack engineering across client engagements: architect, build, deploy, and maintain web applications, APIs, CMS implementations, and CI/CD workflows. Own technical client relationships, enforce best practices, evaluate AI-enabled development, and support long-term maintenance while balancing accessibility, security, performance, and project constraints.

Build and own foundational data infrastructure for Member Marketing and Coverage Eligibility: define data contracts, ensure identity and lineage, implement observability and reconciliation, modernize file/API integrations, design for correctness and auditability in regulated workflows, and lead cross-functional delivery and technical standards.

Own and build the company website using a modern headless CMS stack (Next.js, Sanity, Vercel). Deliver end-to-end features, maintain content models and editorial workflows, integrate third-party APIs and analytics, implement A/B testing and tracking, and uphold performance, accessibility, and SEO standards while collaborating across product, marketing, and engineering.

Develop and maintain ClickHouse Cloud interfaces and dashboards, collaborating with multi-disciplinary teams to enhance user experience and system reliability.

The Digital Consulting Architect will lead CPQ strategy and architecture, ensuring alignment with client goals, and manage scalable solutions for Quote-to-Cash processes, including integration and hands-on development tasks.

The Sr. Software Engineer will develop and test applications using .NET and SQL, collaborate with teams, ensure quality practices, and maintain technical documentation. They will contribute to software design and process improvements while adapting to changing environments in payment systems.

The Senior Software Engineer will collaborate with teams to build and optimize a robust web application, ensure code quality, and elevate team impact.

Owner of full-stack features and platform reliability: build scalable web applications, optimize PostgreSQL performance, maintain asynchronous infrastructure (Celery), migrate frontend to server-side HTMX, ship revenue-driving features, ensure observability and SLO-driven reliability, collaborate cross-functionally, write testable code, and participate in architecture and code reviews.

Lead full-stack developer responsible for designing, building, and maintaining Salesforce Commerce Cloud e-commerce solutions and integrations (ERP/CRM). Mentor junior developers, provide technical leadership, troubleshoot issues, and deliver scalable, secure code while collaborating with cross-functional teams.

Lead architecture and implement large cross-cutting initiatives on a SaaS grantmaking platform. Produce high-quality full‑stack code (Rails/React/Node), mentor engineers, drive SDLC best practices, and champion AI-assisted development while collaborating with product, infra, and QA teams.

The role involves leading the development of a high-performance Web SDK for fraud detection and risk management, implementing algorithms for device fingerprinting, and ensuring security and performance optimization.

Hands-on senior full-stack engineer building and supporting user-facing features, infrastructure, and AI-powered workflows (LLM integration, RAG, agents). Drive architecture, dev experience, CI/CD, and partner with product and program teams to deliver a scalable education platform.