Top Senior Javascript Jobs in Miami, FL

The QA Engineer will ensure software quality through manual and automated testing, develop comprehensive test strategies, and implement test automation frameworks while collaborating with product and development teams.

The Senior Oracle APEX Developer will lead the full lifecycle development of custom Oracle Applications, using Oracle APEX and integrated tools, while ensuring customer needs are met effectively.

The Senior Oracle APEX Developer will support IT services such as custom application development using Oracle APEX, manage Oracle database objects, and ensure customer requirements are met effectively.

As a Senior Software Engineer (Backend), you will design and implement scalable applications, collaborate with agile teams, and mentor junior members while ensuring high code quality and performance.

Design and maintain real-time vehicle-tracking, map-matching, ETA prediction, and disruption-detection systems. Build and scale real-time data pipelines, cloud backend services, and APIs. Develop infrastructure for algorithm validation and shadow testing, collaborate across product and design to prototype and deliver end-to-end features, and apply modern engineering practices through code reviews, pairing, and documentation to ensure reliable production systems.

As a Staff Software Engineer, you will design and implement high-volume ETL pipelines, optimize streaming performance, and mentor the engineering team, ensuring robust data infrastructure.

The Senior Product Engineer will oversee the development of ArcGIS web services, ensuring reliability and scalability while balancing customer needs and product goals.

Lead design, development, and implementation of complex software systems for life & annuity policy administration. Provide technical leadership, mentor engineers, architect scalable mainframe solutions, troubleshoot critical issues, and collaborate with stakeholders to meet performance, reliability, and security goals.

Build and maintain scalable, cloud-native full‑stack features and services. Collaborate with Product and Design to prototype, deliver, and document solutions. Work across backend and frontend, apply modern engineering practices, mentor teammates, and own product domains to improve transit operations.

Design, implement, and maintain cloud-native full-stack software to migrate, preserve, and make large volumes of government records searchable and accessible. Build Section 508-compliant frontends and secure backend APIs, follow API-first and CI/CD practices, defend against vulnerabilities, mentor engineers, and collaborate with cross-functional teams to deliver reliable, performant systems.

Design, extend, and maintain Playwright-based UI and end-to-end automation for web and mobile-web ordering. Build API and integration tests, validate analytics, stabilize flaky tests, improve CI/CD execution, drive automation strategy, mentor QA engineers, and collaborate with product and engineering to raise quality standards using AI-assisted tooling.

Design, develop, and maintain secure cloud-based web applications and APIs in AWS and Azure. Ensure FedRAMP and DoD Impact Level compliance, apply modern web frameworks (React/Angular), serverless architectures, and CI/CD best practices to support a federated data ecosystem for DoD mission analytics and interoperability.

Design, implement, optimize, and audit Solidity smart contracts and DeFi primitives (vaults, lending, staking). Build adapters, connectors, and plugins, contribute to greenfield financial products, support security audits, and occasionally build supporting full-stack tooling like frontends and indexers.

The Senior Engineer will design, support, and improve end-user technology environments, focusing on endpoint management, automation, and collaboration tools while partnering with cross-functional teams.

Lead the Engineering Enablement team owning CI/CD, testing, dependency management, developer tooling and AI-partnered development. Define productivity metrics, drive cross-org change, grow engineers, and run internal platform as a product to improve developer feedback loops and observability.

Lead architecture and build scalable, secure production services while championing AI-native development. Mentor engineers, influence technical direction, review PRs, and help evolve a legacy monolith to a modern stack in partnership with product and exec leadership.

The Senior Back-End Software Engineer will design and implement a serverless platform, work closely with the product team, and own entire projects, driving innovation in telehealth.

As a Senior Full Stack Developer at Capnexus, you'll design and build a cloud-native subcontractor pre-qualification platform using AWS, incorporating AI and modern frontend/backend technologies, ensuring seamless integration and deployment.

Design and operate backend services in Python/Django, focusing on APIs, data modeling, performance, and reliability. Collaborate with teams to enhance user workflows and support production issues.

The Manager of Software Engineering oversees the software development process, leading teams to deliver high-quality digital products while implementing best practices and agile methodologies.

Lead developer education strategy to create structured learning paths, tutorials, courses, demos, and reusable code templates. Produce written and video content, run workshops and webinars, track engagement and completion metrics, and collaborate with engineering, product, marketing, and community teams to drive developer onboarding and production deployments on testnet and mainnet.

Lead and technically guide cross-functional teams building core assessment platform capabilities. Balance hands-on engineering (code reviews, occasional coding in TypeScript/Node/React), system design, AWS architecture, delivery, reliability, cost and security. Manage and develop a high-performing Agile team (4–8 direct reports), partner with product and business stakeholders, and drive platform strategy and execution while fostering a collaborative, inclusive culture.

Lead the design and development of mission-relevant software, build backend services and APIs, mentor engineers, and support technical demos.

As a Senior Full Stack Software Engineer, you will build and improve products, create user interfaces and APIs, and collaborate with various teams to enhance the customer experience.

Develop and maintain WordPress websites, create custom themes and plugins, ensure cross-browser compatibility, and optimize for SEO. Provide guidance on user experience and explore new technologies.