Top Javascript Jobs in Miami, FL

Serve as the senior technical engineer on a delivery team, writing production code, shaping architecture, mentoring engineers, diagnosing complex issues, and owning software quality and reliability. Build TypeScript and JavaScript applications using Node.js, Express, React, PostgreSQL, REST APIs, testing, and observability. Modernize legacy systems, manage integrations and data synchronization, and use AI tools and automation to improve engineering workflows and delivery.

Build and maintain finance-system integrations and automation across NetSuite, Celigo, Stripe, Salesforce, and other business platforms. Develop SuiteScript and JavaScript solutions, configure billing and invoicing workflows, create error handling and reconciliation checks, automate Billing and AR processes, manage environments and vendor support, and support finance systems, tax tooling, audits, and production operations.

Design and lead development of high-performance networking infrastructure for large-scale AI training and inference in Azure. Architect low-latency, low-jitter communication frameworks, optimize distributed systems, benchmark scalability, resolve complex networking issues, and improve reliability, observability, and performance. Mentor engineers, create technical designs, manage dependencies, and participate in on-call operations for critical services.

Leads the design, implementation, optimization, and support of highly scalable Azure Storage services. Responsibilities include end-to-end performance testing, benchmarking, automation, profiling, bottleneck and root-cause analysis across compute, storage, and networking layers, KPI definition, scaling recommendations, and operational incident response. The role collaborates across teams, drives project and release plans, supports reliable and secure services, and mentors engineers while participating in on-call responsibilities.

Develop and operate software for Azure’s hyperscale networking infrastructure and SONiC switch and router platforms. Responsibilities include designing, coding, optimizing, debugging, and maintaining network software; supporting packet forwarding, telemetry, observability, reliability, and performance; creating design and release plans; responding to incidents; and mentoring engineers. The role requires expertise in software engineering, IP networking, distributed systems, Linux, SDN technologies, and container-based environments.

Work full-stack on a small mobile-focused engineering team building a product-first React Native app. Contribute to product ideation, UX, analytics, and deliver features across frontend and backend (GraphQL, PostgreSQL). Report to Head of Engineering and collaborate on technical decisions, pair-program, and help shape product strategy in a fast-paced startup.

Leads the architecture, governance, scalability, security, and lifecycle management of Presidio’s ServiceNow platform in a complex managed-services environment. Owns architectural roadmaps, domain separation, integrations, ITSM and ITOM capabilities, customization reduction, upgrade readiness, and technical standards. Provides hands-on development support, design and code reviews, mentoring, troubleshooting, and stakeholder communication while ensuring platform solutions are maintainable, secure, scalable, and aligned with business needs.

Build and deploy secure business automations and integrations across SaaS tools, internal systems, and APIs. Partner with stakeholders to identify high-impact workflow improvements, apply AI and agentic patterns where appropriate, and establish scalable engineering practices for documentation, testing, access controls, secrets management, logging, and maintenance. The role also helps shape automation infrastructure and team standards while collaborating with security and IT leadership.

Develops and maintains high-quality systems software and microservices for Azure Messaging services, including data storage and replication. Drives product and engineering-process innovation, applies AI to software development, ensures software quality and stability, and uses rigorous development practices including requirements, testing, and efficient coding techniques.

Designs, develops, tests, deploys, monitors, and operates large-scale distributed cloud services for Azure Arc. Builds software across agents, Kubernetes environments, and globally distributed Azure services using languages such as C# and Go. Responsibilities include automation, debugging, performance optimization, reliability improvements, telemetry, live-site operations, and cross-team collaboration. The role requires participation across the full software development lifecycle and ownership of features from design through production support.

Leads architecture and development of Azure Storage table, metadata, and indexing systems at massive cloud scale. Designs distributed-system primitives for partitioning, indexing, transactions, consistency, replication, caching, and high-performance data access. Drives architectural decisions, prototypes innovations through production, and improves performance, scalability, reliability, and cost efficiency. Requires deep expertise in distributed storage, databases, or large-scale systems.

Develop and maintain athenaOne API integrations, including Salesforce connectivity, authentication, data mapping, webhooks, and error handling. Configure and administer athenaClinicals, monitor API changes, manage testing and rollouts, and troubleshoot synchronization issues. Evaluate AI and agentic tools that improve clinical workflows. Collaborate with clinical, operational, and athenahealth teams while maintaining technical documentation and supporting HIPAA-compliant healthcare data integrations.

Manage BizTech production operations, including ticket queues, incident response, on-call troubleshooting, observability dashboards, and service-health reporting. Build automation and self-healing workflows using Python, Go, JavaScript, TypeScript, Bash, infrastructure-as-code, CI/CD, and AI-assisted tools. Develop LLM-powered triage, diagnostics, runbooks, and root-cause analysis to reduce recurring tickets and improve mean time to resolution. Partner with global stakeholders and support enterprise systems, data pipelines, monitoring, and identity integrations.

The Lead Rust Software Engineer will design and build scalable applications, mentor teams on Rust, and contribute to complex product development.

Build and maintain business automation workflows using n8n, APIs, Python or JavaScript, AI tools, and integrations. Analyze business processes, identify automation opportunities, test and monitor solutions, document workflows, train teams, and measure operational impact. Partner with People Operations, Credentialing, Clinical Operations, Data, Product, and Analytics while protecting sensitive information and following security and AI governance controls.

Owns incident triage and resolution across the member app, clinical Care Hub, internal tools, and data pipelines. Responsibilities include reproducing issues, investigating logs and code, shipping durable fixes, prioritizing technical backlogs, writing runbooks, creating alerts and automations, and communicating with members and care teams. The role requires careful handling of protected health information and close collaboration within a remote engineering team.

Leads software quality and test automation for web, mobile, and application portfolios. Designs automated testing strategies, frameworks, plans, and test cases; performs functional, integration, regression, performance, load, API, and manual testing. Mentors test engineers, reviews requirements, tracks defects, supports Agile delivery, maintains CI/CD test coverage, and collaborates with developers and cross-functional teams to ensure application quality.

Lead development, testing, and maintenance of scalable accounting integrations using JavaScript, TypeScript, Node.js, and AWS serverless technologies. Design REST APIs, webhooks, OAuth flows, and event-driven systems that synchronize data with external accounting platforms. Diagnose complex issues, improve reliability and performance, document systems, and mentor junior engineers. Use AI-assisted development tools responsibly while managing multiple priorities and supporting high-volume integrations.

Own and improve Attentive's first-party data collection across the JS tag, Cloudflare Workers, and Java backend. Expand edge compute capabilities, build agentic AI systems to detect and fix data-quality issues, harden the event ingestion pipeline for reliability and observability, and lead technical direction on a small autonomous team while mentoring engineers.

Leads and mentors software engineering teams while remaining 20–30% hands-on with coding, debugging, APIs, architecture, and scalable platform services. Coordinates engineering, product, quality, SRE, security, and operations teams to deliver reliable SaaS software. Owns technical direction, roadmap influence, incident management, operational excellence, KPIs, resource allocation, hiring, performance management, and continuous improvement across globally distributed teams.

Leads the design, development, testing, deployment, and technical direction of scalable AWS backend solutions for assessment scoring systems. Builds Node.js and TypeScript APIs, microservices, data pipelines, and serverless applications; resolves production issues; ensures engineering quality and data accuracy; and mentors junior engineers. Partners with product, business, and psychometrics stakeholders on requirements, roadmaps, and delivery. Promotes DevOps, testing, documentation, responsible AI-assisted development, and continuous improvement.

Lead the platform’s technical architecture, guide development decisions, coordinate sprint cycles, and contribute hands-on full-stack development. Oversee Solana wallet integrations, transaction security, blockchain payment functionality, and gaming mechanics for poker, slots, and fantasy sports. The role requires gaming and blockchain experience, strong English communication, project leadership, and availability for part-time remote work.

Principal Engineer responsible for owning complex software initiatives from problem framing through architecture, implementation, deployment, production support, and continuous improvement. The role involves building web applications, services, APIs, MCP servers, data pipelines, and platform integrations; leading architecture and code reviews; improving security, reliability, and maintainability; mentoring engineers; and shaping technical strategy. The engineer will also use and improve AI-assisted development practices while maintaining human accountability for quality and operational outcomes.

Define architectural direction for Azure Specialized platform services and lead the design of highly available distributed cloud systems. Drive reliability, scalability, observability, security, diagnostics, and operational improvements across engineering organizations. Establish service health frameworks, SLOs, metrics, and governance for mission-critical services. Mentor engineers, influence technical strategy, resolve complex cross-system challenges, and advance AI-assisted troubleshooting and platform modernization.

Lead design, development, testing, and deployment of cloud-native full‑stack applications and microservices. Provide technical leadership, mentor engineers, implement CI/CD and automated tests, and drive modernization using GCP or similar cloud platforms, containers, and enterprise security best practices.