Top Senior Javascript Jobs in Miami, FL

Lead backend development to scale and harden API infrastructures, implement unit testing playbooks, optimize core algorithms, support migration from Supabase to a robust cloud provider, ensure system reliability and scalability, collaborate with frontend and DevOps, and integrate AI workflows and RPA where applicable.

Design, develop, customize and maintain enterprise Sitecore solutions (versions 9/10, SXA, JSS, XM Cloud). Produce technical specs, implement components, test and debug in test and production, support teammates, perform demos to customers, and escalate/resolve issues.

Senior iOS Developer to design and build secure, high-performance iOS apps using Swift (SwiftUI/UIKit). Implement webview integrations (WKWebView/ASWeb), ASWebAuthenticationSession for OAuth/SSO, JavaScript interop, and native features (camera, push, maps). Ensure responsive web content handling and secure data management. Remote role but must be Bangalore-based with weekly (~1 hour) client office visit to collect a device.

Full‑stack staff engineer to ship web products end-to-end, iterate on and expand a suite of sales/CRM-focused tools, define engineering culture and best practices, and hire/mentor future engineers. Must move fast in a small team, engage with users, and solve new problems creatively.

Designs, implements, integrates, and optimizes scalable ServiceNow solutions for IT modernization. Leads architecture, custom application development, workflow optimization, data migration, performance improvements, testing, deployments, and troubleshooting. Provides technical leadership, mentors developers, documents systems, ensures security and compliance, and collaborates with technical and business stakeholders. Requires extensive ServiceNow expertise, platform certifications, security clearance, and experience with JavaScript, REST APIs, Agile, and DevOps practices.

Own full-stack modernization delivery for complex federal mission systems. Analyze legacy workflows, identify essential functionality, and translate requirements into scalable platform-based applications. Develop Java and Spring Boot backend services, RESTful APIs, integrations, and React-based user interfaces. Support the full software development lifecycle, troubleshoot application and data layers, collaborate with stakeholders, and uphold engineering best practices.

Senior Software Engineer responsible for designing, building, and scaling high-volume pharmacy and prescription-processing services. The role includes improving automation, inventory optimization, billing and clinical workflows, predictive systems, and pharmacist tooling. Responsibilities include architecting maintainable platforms, solving complex healthcare and e-commerce problems, mentoring engineers, driving technical strategy, and maintaining production quality and resilience.

Senior engineer responsible for designing, building, and operating scalable data ingestion, processing, storage, and member-facing membership application. Drive architecture decisions, mentor engineers, build data pipelines, APIs, and ensure reliability, observability, CI/CD, and documentation while partnering with product and analytics stakeholders.

Build and scale backend or full-stack services supporting prescription intake, processing, fulfillment, inventory optimization, billing, benefits, and clinical workflows. Design resilient, maintainable, high-throughput systems; integrate automation, LLMs, predictive models, and service-oriented architectures; optimize pharmacy and supply chain operations; troubleshoot production issues; establish engineering best practices; and mentor other engineers.

Lead frontend and full-stack engineering, architect scalable features, integrate APIs and cloud services, optimize rendering and performance, establish engineering standards, conduct code reviews, and mentor developers. Collaborate with product, UX, and backend teams to deliver user-focused software while managing priorities in an ambiguous environment.

Design, build, and optimize scalable cloud and web software with focus on infrastructure, performance, and hardware integration for IoT devices. Collaborate with hardware teams to ensure connectivity and high availability, implement new features, and improve system efficiency.

Develop and support customer integrations by designing workflows across the core product and external platforms such as QuickBooks, Salesforce, and NetSuite. Translate customer requirements into complete solutions, deliver projects on schedule, maintain project documentation, resolve technical challenges, communicate roadblocks, and mentor team members. The role requires API experience across multiple products, scripting expertise, strong communication, adaptability, and attention to detail.

Designs and builds scalable applications using React and Python, contributing to component development, data storage, deployment practices, performance optimization, testing, and client requirements analysis. The role collaborates with technical leaders, clients, and distributed teams in agile environments, using Git, code reviews, cloud platforms, databases, and AI-native development practices. U.S.-based travel to client sites is required.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Design, develop, and maintain scalable web services for a B2B SaaS application. Write tested code primarily in Go, manage PostgreSQL schemas and queries, and research AI-powered tools for software development and CI/CD optimization. Collaborate with product, design, and engineering teams to deliver user-focused solutions. Mentor engineers, promote best practices, and contribute to technical excellence.

Designs, develops, and integrates business applications across Dynamics 365, Power Platform, Azure, and custom Microsoft-stack solutions. Responsibilities include solution architecture, application customization, APIs and event-driven integrations, platform modernization, ALM, CI/CD, deployment pipelines, and production support. The role also establishes engineering standards, evaluates technologies, collaborates with technical and business teams, and mentors junior staff.

Leads the design, development, architecture, and maintenance of scalable software systems. Provides technical leadership, conducts code reviews, ensures development best practices, and mentors junior engineers. Collaborates with technical and non-technical stakeholders to deliver reliable solutions supporting clinical decision-making and patient outcomes.

Develop and customize Salesforce solutions using Apex, Visualforce, Lightning, Aura, SOQL, JavaScript, and triggers. Configure Salesforce objects, workflows, reports, dashboards, security, and administration across Sales, Service, and Community Cloud. Build integrations using REST, SOAP, WSDL, and Salesforce APIs; manage data migration, testing, troubleshooting, and deployments. Collaborate with U.S.-based business and IT stakeholders while supporting production systems.

Lead a hands-on platform engineering function spanning full-stack product development, real-time Kafka and ClickHouse data/ML pipelines, cloud infrastructure, DevOps, security, and reliability. Own React, Node.js, and MongoDB applications; Terraform, Kubernetes, AWS/GCP, Docker, and GitHub Actions; production observability and incident response; and SOC 2 readiness. Establish AI-assisted engineering workflows using tools such as Claude Code and Cursor while replacing vendor-built infrastructure with durable internal automation.

Lead end-to-end development of scalable web applications using Node.js, React, MongoDB, and Google Cloud. Build analytics, identity resolution, personalization, integrations, and advanced visualizations using AI-assisted, spec-driven workflows. Develop LLM integrations, configure AI agents, maintain MCP servers, automate testing and CI/CD, and support observability. Serve as a Feature Lead by guiding architecture, technical specifications, documentation, and cross-functional communication.

Design and optimize networking infrastructure for Azure AI supercomputing clusters. Develop RDMA communication libraries, transport protocols, distributed systems, observability tools, and performance optimizations. Analyze latency, throughput, congestion, scalability, and fault tolerance across large GPU and accelerator environments. Lead technical architecture, write design specifications, resolve complex production networking challenges, and collaborate with hardware, silicon, AI framework, and infrastructure teams.

Lead the evolution of Seeq’s frontend infrastructure, including React systems, component libraries, state management, styling architecture, and reusable application patterns. Drive large-scale refactors, improve developer experience, ensure accessibility and performance, evaluate open-source tools, and establish technical standards adopted across teams. Collaborate with designers, product teams, and engineers through architecture reviews, documentation, code reviews, mentoring, and cross-team delivery.

Leads end-to-end software development for AI-infused enterprise applications, including architecture, database design, coding, testing, deployment, and service reliability. Builds Copilot and agentic solutions using Azure and modern full-stack technologies. Provides technical leadership, mentors engineers, establishes quality and security practices, supports enterprise integrations, and collaborates with product teams, program managers, UX designers, and data scientists to deliver scalable commercial software.

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

Provides technical leadership for architecture and evolution of large-scale distributed data platforms supporting Azure network telemetry. Designs streaming and batch systems, establishes reusable engineering patterns, drives cross-team technical strategy, and owns capabilities from design through production operations. Ensures scalability, reliability, security, performance, data quality, and operational excellence while mentoring engineers and influencing technical leaders. The role also involves architectural reviews, dependency management, risk reduction, and applying AI or machine learning approaches to operational systems.