Top Senior Javascript Jobs in Miami, FL

Design and scale highly available backend services for an AI-powered manufacturing platform. Build AWS-based event-driven systems with Node.js, REST/GraphQL APIs, and database integrations. Use AI coding agents while validating correctness, write tests and documentation, improve observability and reliability, debug production issues, and collaborate with product, frontend, and infrastructure teams. Contribute to technical design, code reviews, engineering best practices, and responsible adoption of AI-assisted development.

Develop and maintain scalable Salesforce solutions using Apex, triggers, asynchronous operations, SOQL/SOSL, and Lightning Web Components. Build REST and SOAP integrations, translate business requirements into secure architectures, troubleshoot Salesforce applications, and collaborate with admins, architects, and stakeholders. Apply version control, deployment, testing, and Salesforce best practices while staying current with platform releases.

Lead and mentor a software engineering team, provide technical guidance, drive architecture and engineering excellence, manage sprint execution, collaborate on product roadmaps, ensure scalable and reliable systems, foster continuous improvement, and support recruiting and onboarding. The role requires balancing technical strategy with business impact while developing high-performing engineers.

Develop and support high-volume, mission-critical web applications across the full software development lifecycle. Build with TypeScript, JavaScript, Next.js, and SQL; deploy and operate applications in Microsoft Azure; use AI-assisted development tools; troubleshoot complex technical issues; make architectural decisions; and mentor other engineers. The role requires multi-tier system development, database optimization, Agile collaboration, and proactive delivery of reliable, high-quality software.

Develop and deliver high-volume enterprise applications across the full software development lifecycle. Design, code, test, debug, optimize SQL solutions, troubleshoot complex issues, contribute to scalable architecture, collaborate with technical and business stakeholders, and mentor other developers. Work independently while participating in Agile development and production implementation.

Lead development and maintenance of internal design system libraries, tools, and Figma plugins. Implement AI solutions to speed design workflows, own medium-to-large features end-to-end, run internal user research, provide support and on-call coverage, conduct design and code reviews, and collaborate with designers and engineers to drive technical strategy and adoption.

Own and evolve Jira, Aha!, and related product and engineering platforms. Configure workflows, permissions, schemas, dashboards, automations, integrations, and reporting while improving governance, data quality, reliability, and adoption. Partner with Product, Engineering, TPM, Finance, and IT teams to translate business needs into scalable systems. Lead implementations, migrations, platform lifecycle management, troubleshooting, documentation, training, and tooling evaluations.

Lead and scale the quality assurance strategy for a remote health technology company. Manage and mentor QA engineers across Scrum teams, oversee automated and manual testing, integrate test frameworks with CI/CD pipelines, establish quality metrics, improve test coverage and environments, and ensure compliance with regulated-industry standards. Partner with engineering, product, and executive leadership to drive quality practices across the software development lifecycle.

Staff Software Engineer leading architecture, hands-on development, and delivery of reliable frontend, backend, API, data, and production systems across multiple teams. The role drives multi-quarter initiatives, AI-enabled engineering practices, system scalability, security, observability, incident response, technical standards, mentorship, and alignment between technical investments and product outcomes.

Build and ship Topstep’s mobile trading MVP using React Native and TypeScript for iOS and Android. Own features from design through release, establish reusable architecture and components, integrate GraphQL and real-time data, optimize performance and reliability, write tests, support production, and mentor engineers. Collaborate cross-functionally to create accessible, responsive mobile experiences for high-volume trading activity.

Develops, maintains, and enhances scalable web applications, internal tools, libraries, and shared components for international enterprise clients. Collaborates with cross-functional teams, participates in code reviews, creates technical documentation, and shares knowledge. Requires strong software development principles, design patterns, cloud, database, CI/CD, messaging, testing, and mobile framework experience.

Owns end-to-end enterprise application architecture for secure, scalable court-record systems. Responsibilities include designing microservices, REST APIs, micro-frontends, cloud and hybrid-cloud solutions, authentication frameworks, workflows, and integrations; leading architectural reviews, code reviews, DevSecOps and CI/CD initiatives; mentoring technical teams; evaluating technologies; and ensuring security, compliance, accessibility, and governance standards.

Leads and develops a software engineering team while contributing hands-on to enterprise application design, coding, testing, code reviews, production support, and technical decisions. Builds scalable solutions using C#, ASP.NET, SQL Server, and modern web technologies; partners with product and business stakeholders; supports Agile delivery, CI/CD, troubleshooting, root cause analysis, and engineering best practices. The role also includes mentoring engineers, monitoring delivery and operational metrics, and driving continuous improvement.

Maintain and support Java-based healthcare SaaS applications across multiple customer environments. Responsibilities include bug fixes, feature delivery, refactoring, deployments, security remediation, SQL and data migrations, code reviews, configuration improvements, and production support. The role requires a generalist software engineer comfortable with Java, Angular, SQL, REST APIs, enterprise applications, and customer-facing environments.

Build and maintain full-stack software for startup clients, including backend services, frontend experiences, new features, redesigns, bug fixes, and product improvements. Collaborate daily with product managers, designers, and engineers in a distributed, agile environment. Take ownership across the technology stack, write clean maintainable code, contribute to client missions, and support team growth and knowledge sharing.

Build and maintain AWS-based DevOps infrastructure, CI/CD pipelines, containerized microservices, and Infrastructure as Code. Improve observability, resilience, security, compliance, and scalability through monitoring, vulnerability management, system hardening, and performance testing. Collaborate with development teams to resolve outages, contribute to architecture and software development, review code, document systems, mentor engineers, and participate in Agile ceremonies and on-call support.

Operate and maintain highly available, secure, containerized SaaS applications across AWS and Azure. Responsibilities include rotating 24x7 on-call coverage, observability, incident and security response, disaster recovery, Terraform infrastructure-as-code, CI/CD automation, cloud integration, performance optimization, and developing AI agents to automate SRE and DevSecOps workflows.

Lead enterprise B2B integration projects for strategic customers using APIs, webhooks, connectors, cloud services, and scalable integration architectures. Gather requirements, design technical solutions, develop and review code, document best practices, troubleshoot implementations, and support customer deployments. Collaborate with product, sales, systems engineering, and developer ecosystem teams while managing complex projects and multiple stakeholders. Apply Python, cloud platforms, LLM-based tools, agentic workflows, databases, and modern Agile practices.

Design, build, and operate cloud-native, enterprise-grade SaaS services on Azure. Lead architecture and design, develop APIs and UIs, apply AI-enabled engineering tools, ensure observability, support production incidents, and drive reliability, performance, and CI/CD improvements across teams.

Develop and maintain full-stack web applications for a federal environmental data client. Responsibilities include participating in Agile SDLC activities, designing and implementing scalable software, collaborating with analysts and stakeholders, testing and deploying applications, maintaining technical documentation, following development best practices, and recommending modern tools and technologies. The role requires AWS, TypeScript, Node.js, React or Angular, PostgreSQL, event-driven architecture, and strong communication skills.

Leads cross-functional software development efforts, including architecture, design, development, testing, deployment, support, code reviews, and technical problem resolution. Mentors developers, establishes coding standards, improves system scalability and availability, manages source code, promotes unit testing, estimates work, and supports Scrum team delivery. The role requires .NET, web development, APIs, microservices, distributed systems, cloud, databases, and software testing experience.

Leads a team of 10 engineers building and maintaining NIBRS and compliance reporting capabilities for public safety records platforms. Oversees technical quality, validation, certification, delivery, incident follow-through, resource allocation, and team development. Partners with product, R&D, agencies, and regulators to implement federal and state reporting requirements, improve engineering operations, and define the roadmap for new states, report types, automation, and platform capabilities. The role is remote within the United States with travel of up to 25%.

Own the enterprise test automation strategy, scale a Playwright and JavaScript framework, expand coverage across Salesforce, MuleSoft, D365, and reporting systems, and build scalable execution and reporting infrastructure. Design QA standards, metrics, and review processes while developing AI-powered agents with Cursor for performance testing, regression analysis, and defect triage. Partner with engineering, product, business, and AI platform teams to deliver governed, reusable quality tooling.

Designs, develops, and maintains complex distributed software systems. Writes high-quality code, leads design and code reviews, translates product requirements into scalable architectures, leads sprint delivery, collaborates with stakeholders, and mentors engineers. The role requires expertise in programming, databases, APIs, messaging, microservices, containerization, DevSecOps, and technical strategy.

Design, develop, and maintain complex distributed software systems. Write tested, high-quality code; translate product requirements into scalable designs; lead design, code, and sprint activities; collaborate with stakeholders; and mentor engineers. The role also drives technical strategy, resolves delivery impediments, and promotes secure, maintainable, and reusable engineering solutions.