Top Senior Javascript Jobs in Miami, FL

Lead full-stack modernization of DHS ICE legacy systems by analyzing workflows, designing scalable backend services and APIs, and building user-facing React components. Own full SDLC, troubleshoot across application and data layers, collaborate with stakeholders, and translate complex legacy behavior into a modern platform-based architecture.

Lead design, development, and deployment of ServiceNow solutions for federal projects. Build and customize ITSM/ITOM/HRSD modules, Service Portal widgets, and workflows. Integrate with external systems via REST/SOAP/MID Server/Integration Hub, ensure security and RBAC, mentor developers, troubleshoot platform issues, and work in Agile teams producing documented, scalable solutions.

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.

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.

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.

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.

Senior Full-Stack Engineer for Hospitality Fulfillment working on backend services and microfrontends powering SpotOn's Express POS. Own features end-to-end, solve complex high-traffic production issues, integrate AI tools, provide technical leadership, mentor teammates, and work across stack including cloud/infra when needed.

Lead test strategy and automation for a high-transaction healthcare platform. Define and execute scalable automation frameworks (UI, API, integration), integrate tests into CI/CD, identify systemic quality risks, mentor engineers, influence architecture and testability, and promote AI-enabled testing practices to improve test coverage, defect analysis, and release confidence.

The Full Stack Developer will design and develop software applications for a data inventory initiative, enhance application security, and automate processes. Responsibilities include application testing, version control instruction, and collaboration across teams.

Principal individual-contributor responsible for technical leadership and architecture of a scalable, secure API-driven digital pharmacy platform. Own system design, performance, PostgreSQL optimization, AWS infrastructure, cross-squad mentoring, compliance (HIPAA/SOC2), and prototyping to de-risk platform initiatives.

The Senior Application Architect will lead technical direction, oversee product development, manage Agile teams, and ensure solutions align with user needs and mission outcomes. Responsibilities include mentoring developers, managing risks, and collaborating on product roadmaps while leveraging architectural expertise in federal healthcare projects.

The role involves developing large-scale applications using HTML, CSS, JavaScript, and React/WordPress, code reviews, and crafting UI components while ensuring high quality and accessibility.

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.

The Senior ServiceNow Developer designs and builds solutions on the ServiceNow platform, working with stakeholders to enhance legal practice operations and improve service delivery through automation and integrations.

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.

As a Staff Backend Engineer, you'll develop new product experiences, lead technical capability investments, and mentor engineers in backend development.

Lead customer-facing architecture and development of scalable, cloud-native AWS applications. Drive design discussions, migrate monoliths to microservices, implement serverless and container solutions, advise on AWS best practices, and influence developer-focused product and platform strategy.

Lead technical engagements to architect and build scalable, cloud-native AWS applications using serverless, containers, and microservices. Migrate monoliths to microservices, advise on AWS best practices, influence infrastructure and product strategy, and work directly with customers and cross-functional teams.

Support external developers integrating a cross-chain communication protocol, provide technical troubleshooting, create and maintain developer documentation, and contribute improvements to protocol features while staying current with blockchain advancements.

Lead end-to-end technology for a greenfield, white-label consumer engagement and rewards platform. Define architecture, build scalable backend and infra for real-time events, points/wallet systems and tokenised rewards, oversee web and mobile products, integrate external systems, ensure production readiness and security, and hire and scale the engineering organisation while transitioning from hands-on delivery to strategic leadership.

The Principal Software Engineer at Snout will define architectural direction, build features across the stack, and enhance team effectiveness, ensuring quality and performance.

As a Senior Software Engineer, you'll develop and enhance the Snout web platform, collaborate with teams, and lead technical projects while ensuring performance and reliability.

Design, configure, develop, and administer Salesforce solutions using LWC, Visualforce, Apex, SOQL, Flows, and APIs. Support Sales and Service Cloud, perform requirements and gap analysis, author design specs, participate in code reviews, testing, deployments, and Agile ceremonies, and coordinate integrations and stakeholder communication to ensure usability and adoption.

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.

The Software Engineer will develop the Socket web application, design interfaces, write APIs, and contribute to team growth and culture. Responsibilities include building systems and collaborating with design and engineering teams to ensure a delightful user experience.