Top Senior Javascript Jobs in Miami, FL

The Senior Software Engineer will enhance mobile Wikipedia experiences through web-first features, collaborate cross-functionally, and mentor team members while delivering API-driven solutions.

As a Senior Full-Stack Engineer, design and build scalable UI systems, own features end-to-end, collaborate on API design, and ensure production quality.

As a Senior Integrations Engineer, you will develop, maintain, and support integrations using Workato, ensuring data flow and security across business systems while providing technical support and implementing best practices.

The Full Stack Developer will design and maintain application components, support integrations, and provide Tier 2/3 operational support in a DoD environment, using Java, JavaScript, SQL, and cloud technologies.

As a Senior Frontend Software Engineer, you'll design and develop high-performance, data-intensive applications, optimizing user experiences while collaborating with team members to enhance application quality and performance.

This role focuses on enhancing developer productivity for Hightouch's engineering team by owning the build/test/deploy processes, improving multi-cloud infrastructure, and driving excellence in testing.

Lead and oversee full stack applications for Yahoo Search, ensuring architectural integrity and code quality while mentoring engineers and collaborating with cross-functional teams.

Build and maintain intuitive frontend web applications for data upload, search, visualization, and interactive 2D/3D geospatial tools. Collaborate with scientists to design complex visualizations, modernize the frontend stack, mentor junior developers, and implement automated UI testing and deployment pipelines.

Design, build, test, and maintain Salesforce Sales and Service Cloud solutions. Implement configuration and custom development (Apex, LWC, integrations), support deployments, troubleshoot integrations, mentor junior engineers, and collaborate with stakeholders to ensure scalable, resilient solutions.

Lead design, automation, and optimization of database infrastructure (PostgreSQL/Aurora). Build monitoring, tuning, and scaling strategies, create automation tooling, drive performance and reliability initiatives, and expand into broader SRE responsibilities to improve availability and system health for a growing SaaS platform.

Lead QA for K1X Next Platform: define automation strategy, architect Playwright-based test frameworks, perform complex manual and exploratory testing, integrate tests into CI/CD, mentor QA engineers, establish quality metrics, and act as domain SME for tax workflows and integrations.

Build and maintain user-facing interactive features and backend APIs. Own architecture, write well-tested code, participate in reviews and standups, ensure production reliability, and create development and deployment standards.

Lead technical delivery of Enterprise Content Management (ECM) solutions, guiding design, development, integrations, CI/CD, automated testing, and cloud modernization. Provide hands-on .NET development, incident resolution, operational readiness, and coach engineering teams while ensuring security, retention, and governance for content services.

Design, build, and maintain scalable full‑stack web applications using Python (FastAPI/Django/Flask) and Node.js frameworks (Next.js, Nest.js). Build React front ends, architect RESTful APIs, work with SQL/NoSQL databases, implement testing and security best practices, leverage AWS cloud services and AI-assisted development tools, collaborate with product and design, perform code reviews, and mentor junior engineers.

As a Senior Software Engineer at Iru, you will develop backend services for billing and tenant lifecycle workflows and collaborate on frontend user interfaces, contributing to a scalable event-driven architecture.

The Solutions Engineer will lead technical evaluations, deliver demos, build customer relationships, and translate requirements into solutions for AI infrastructure.

Lead and grow a full‑stack team building the Console, Tiger CLI, and MCP integrations. Own customer-facing domains (UI, billing, observability), set technical direction for a JavaScript/Go stack, hire and mentor engineers, establish engineering practices, and partner with Product and Design to deliver polished features. Be hands-on and drive organizational change during growth.

The role involves full-stack software development, adhering to Agile practices, and collaborating across teams. Responsibilities include coding, testing, and maintaining software systems while mentoring team members.

Design, develop, test, document, and debug full-stack software with emphasis on backend and containerized cloud deployments. Build and integrate RESTful APIs, migrate or develop cloud-native applications (preferably AWS), mentor team members, and manage development lifecycle using Agile and DevOps practices. Maintain and troubleshoot production issues and promote reusable, extensible architecture.

Build and maintain a customer-hosted full-stack web application: develop UIs and backend services, deliver production features, fix bugs and technical debt, improve development processes and pipelines, and collaborate with UX, Product, QA, and Customer Success to meet customer needs.

Designs and develops enterprise-scale applications, collaborating with business analysts and system architects. Implements web- and API-based solutions using Java, .NET, AngularJS, JavaScript, SOAP/REST, MuleSoft, and low-code/no-code BPMN tools (Appian, Salesforce, Nintex) with SQL Server in agile/hybrid environments.

Design, build, and maintain full-stack applications to modernize DHS ICE legacy systems. Analyze legacy workflows, translate mission-critical behavior into scalable designs, implement backend services and APIs, develop front-end components, support SDLC activities, troubleshoot across stacks, and collaborate with stakeholders while upholding engineering best practices.

Design, implement, and operate large-scale distributed NoSQL and multi-model database solutions across cloud and hybrid environments. Provide architecture, performance tuning, sharding/partitioning, disaster recovery, monitoring, automation, and migration support. Partner with engineering and business teams to define data strategies, perform security assessments, and lead implementation, troubleshooting, and on-call operations.

The Senior Full Stack Developer will design and implement front-end and back-end solutions, collaborate with project managers, enhance existing systems, and stay updated on emerging technologies.

Design, develop, test, and deploy web applications. Collaborate with product, UX, data, and QA to define requirements and integrations. Architect scalable solutions, write testable code, establish development practices, improve performance, and mentor engineers. Participate in code reviews, implement CI/CD and containerization, and maintain full-stack applications using modern databases.