Top Senior Javascript Jobs in Miami, FL

Engineers, deploys, operates, and maintains on-premises and cloud-based playout and distribution systems. Develops infrastructure automation, CI/CD deployments, monitoring, reliability improvements, and scalable architectures. Investigates broadcast issues, evaluates software releases, supports IP video distribution products, and mentors SREs on DevOps practices. Provides rotating 24/7 on-call support and applies AI responsibly to monitoring, automation, problem management, and reliability improvement.

As a Pre-Sales Solutions Engineer, you will drive technical pre-sales engagements, architect custom solutions, and guide customers on API integration and deployment strategies, enhancing their experience with Voice AI technologies.

Staff Software Engineer responsible for technical strategy, architecture, and development of web and mobile authentication experiences. Leads major technical initiatives, partners with product, design, and analytics, improves reliability and operational readiness, establishes engineering standards, and mentors team members. Requires extensive experience building web applications with React or Vue, proficiency in JavaScript or TypeScript, strong system architecture and communication skills, and a related degree or equivalent experience.

Leads software engineering across broker productivity products and core platform squads. Owns engineering delivery, infrastructure and security roadmaps, cross-squad practices, migrations, integrations, testing, and compliance remediation. Partners with product and company leadership, hires and develops senior engineers and tech leads, and builds scalable engineering management structures. The role remains hands-on through design reviews, specifications, code reviews, and technical spikes.

Develop and operate a large-scale internal cloud management platform. Build APIs, UIs, CI/CD pipelines, and developer productivity tools using Go and TypeScript. Maintain Temporal and Argo Workflows pipelines, integrate development tooling, improve SDLC efficiency, support SOC 2 compliance, and collaborate with engineering, security, infrastructure, and SRE teams. Participate in on-call operations and apply AI technologies to improve workflows and decision-making.

Develop and enhance globally scalable software using .NET, Azure, React, SQL, and RESTful APIs. Implement internationalization for currencies, numbers, time zones, calendars, pluralization, and RTL layouts. Build automated tests, improve infrastructure reliability, participate in agile ceremonies, lead code reviews, and mentor junior developers.

Own complex software systems and critical workflows end-to-end while ensuring reliability, performance, security, and maintainability. Lead architectural decisions, mentor engineers, manage incident response, improve system health, and communicate effectively with technical and non-technical stakeholders. The role requires extensive Ruby on Rails, AWS or equivalent cloud infrastructure, Linux production operations, frontend development, relational databases, testing, CI/CD, and observability experience.

Design, implement, and optimize MongoDB database integrations, Change Data Capture and streaming capabilities, and observability systems. Develop high-performance C++ services, contribute to query engine and distributed systems architecture, lead projects from design through production support, and collaborate with product and engineering teams on technical roadmaps.

Develop and scale Salesforce solutions focused on CPQ, custom pricing, renewals, subscription lifecycles, and integrations. Migrate point-to-point integrations to Workato or Celigo, build reusable integration components, and maintain connections with internal and third-party systems. Partner with architecture, Revenue Operations, Finance, and Sales teams while using AI tools to accelerate development. Participate in code reviews, Agile sprints, troubleshooting, and end-to-end feature delivery.

Develop and maintain a full-stack web application and platform for fraud analysis. Build APIs and user interfaces, write automated tests, troubleshoot production issues, collaborate with product, design, data science, infrastructure, and solutions engineering teams, and participate in on-call support. Use React, Golang, Python, PostgreSQL, Docker, and AWS technologies to deliver reliable products and meet service-level requirements.

Develop and maintain a fraud-analysis web application and platform. Build APIs and user interfaces, write automated tests, troubleshoot production issues, collaborate with product and cross-functional teams, analyze product metrics, and support SLA compliance through production on-call rotation.

Develop and maintain a fraud-analysis web application and platform, with 60–70% frontend focus. Build APIs, collaborate with product and cross-functional teams, write automated tests, analyze product metrics, troubleshoot issues, maintain service-level requirements, and participate in on-call support. The role uses React, backend languages, databases, Docker, and AWS technologies in a remote U.S.-based environment.

Develop and maintain scalable ServiceNow software and web applications, create custom scripts and business rules, build REST and SOAP integrations, troubleshoot configuration issues, and resolve software bugs. The role supports customer implementations, requirements reviews, Scrum ceremonies, and multiple projects. Candidates need at least five years of JavaScript or ServiceNow development experience, ITOM expertise, strong communication skills, and a bachelor's degree or equivalent experience.

Design, build, operate, and scale cloud-native systems supporting Falcon Complete cybersecurity analysts. Responsibilities include developing web services and data pipelines, improving monitoring and reliability, automating operational tasks, collaborating with stakeholders, translating feature requests into requirements, and participating in 24/7 on-call rotations. The role involves distributed systems, microservices, databases, messaging platforms, container orchestration, and AI-enabled workflow improvements in a remote, asynchronous environment.

Leads marketing technology architecture, integrations, platform governance, and technical enablement. Designs cloud-native, API-driven solutions across Adobe, Salesforce, CDP, CRM, analytics, and AI platforms; oversees data models, identity resolution, observability, security, and operational health. Manages roadmap prioritization, budgets, vendors, implementations, and a technical team. Establishes AI governance and enables responsible use of generative, predictive, and agentic capabilities across marketing and customer engagement workflows.

Lead frontend technical strategy for Affirm’s checkout decision orchestration systems. Design and architect scalable web applications, guide major technical initiatives, improve reliability and operational processes, establish engineering quality standards, collaborate with product, design, and analytics, and mentor engineers. The role focuses on building fast, clear, and reliable checkout experiences using modern declarative UI frameworks.

Develop, debug, optimize, and evaluate production full-stack applications across front-end and back-end systems. Design features, APIs, services, and data models; troubleshoot complex issues involving authentication, databases, networking, deployment, and integrations; review AI-generated code; translate implementations across languages; and provide technical feedback. This fully remote independent-contractor role supports AI training projects for approximately 15 hours weekly.

Develop and modernize secure investor portal backend services using C#/.NET and AWS. Design REST APIs, process data, integrate with browser applications, migrate legacy systems, and replace SQL Server dependencies. Maintain Docker-based CI/CD infrastructure with GitLab Runner, Jenkins, and Terraform. Implement observability, automated testing, peer reviews, and troubleshooting while collaborating with frontend engineering, QA, and application support teams.

Build testing tools, frameworks, metrics, and standards for Cedar’s engineering teams. Improve test-suite reliability, speed, coverage, service-to-service testing, and CI/CD integration. Establish testing best practices, connect tests to product behavior, and lead quality-improvement projects from investigation through adoption. The role requires strong software development and testing expertise in Python and JavaScript/TypeScript, with experience using modern testing frameworks and measuring test performance and reliability.

Develop and operate CrowdStrike’s internal cloud management platform and mission-critical CI/CD pipelines. Build APIs and UIs using Go and TypeScript, improve developer productivity, integrate tooling, maintain cloud-native infrastructure, and support secure, highly available software delivery systems. Collaborate with development, infrastructure, security, and SRE teams, ensure SOC2-aware processes, and participate in on-call operations.

Develop and maintain Gatling-based automated test frameworks and regression simulations for REST APIs and UI integrations. Execute manual and automated testing, manage test data, troubleshoot failures, validate CI/CD deployments through Jenkins, document defects, review code, and support Agile releases. The role requires extensive experience with Scala, Java, JavaScript, Python, Selenium, Unix/Linux, and testing tools, plus eligibility for Federal Public Trust.

Build performant, beautiful, and usable frontend interfaces using JavaScript, React, TypeScript, Vite, and Ryu. Lead complex projects, influence technical vision, improve engineering processes, uphold high UX standards, and collaborate across teams. The role includes recruiting, interviewing, mentoring engineers and interns, and translating business and product ideas into scalable engineering solutions.

Provides principal-level technical leadership for scalable learning and skilling platforms. Designs architectures, writes and reviews production software, leads full software lifecycles, and applies Azure, AI, Copilot, Power Platform, and custom solutions. Responsibilities include secure integrations, CI/CD, infrastructure as code, testing, observability, production support, Responsible AI, reusable components, cross-team technical alignment, and engineering mentorship.

Build and maintain scalable full-stack applications, APIs, and platform capabilities serving millions of developers. Lead projects from conception through delivery, write reliable and testable code, optimize performance, improve observability, participate in on-call rotations, and reduce technical debt. Collaborate asynchronously with Engineering, Product, Design, and cross-functional teams while mentoring peers and thoughtfully using AI-assisted development tools.

Design, develop, test, and deliver enterprise applications, APIs, services, integrations, and web applications. Own projects from technical design through production release, troubleshoot complex issues across systems and cloud environments, participate in architecture and code reviews, support CI/CD and releases, document solutions, and collaborate with Product, QA, Architecture, and engineering teams.