Top Senior Javascript Jobs in Miami, FL

Build and own Alkami’s next-generation sales demo tooling across front-end and back-end systems. Partner with Sales Engineering, Sales Leadership, Product, and Engineering to identify gaps, develop API- and SDK-based tools, evaluate technical stacks, and improve sales win rates. Provide technical expertise during complex financial-services deals, coach Sales Engineers, communicate technical value to senior stakeholders, and champion AI-assisted development workflows.

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

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.

The Full Stack Developer will design and develop software applications for a data inventory initiative, enhance application security, and automate processes. Responsibilities include application testing, version control instruction, and collaboration across teams.

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.

Design, develop, test, and support Salesforce platform solutions; lead technical design sessions; mentor junior developers; implement custom Apex/Lightning solutions; ensure security, performance, and scalable integrations; develop automated tests and CI/CD pipelines; collaborate with product owners and participate in Agile delivery.

Build and operate accessible, high-performance member-facing web applications using a front-end-first full-stack approach. Contribute to APIs, backend services, data flows, integrations, frontend architecture, testing, observability, and performance improvements. Own projects from concept through production, collaborate with Product, Design, Data, and Clinical teams, improve developer experience, support AI-assisted coding practices, participate in technical reviews and incident follow-up, and mentor engineers.

Lead customers in observability strategy, telemetry schema design, sampling, instrumentation, and SRE practices. Build and ship production instrumentation, SLOs, and dashboards; mentor engineering teams; troubleshoot technical and sociotechnical issues; create enablement content; and represent customer insights internally. The role combines long-term technical advisory work with hands-on delivery across cloud platforms, infrastructure, CI/CD, and distributed systems.

Serve as the senior software development SME while performing full-stack Java web development and O&M activities. Guide developer teams, prioritize work, coordinate technical meetings, resolve issues, optimize processes, analyze requirements, estimate effort, review code, conduct testing, troubleshoot environments, create technical documentation, and implement software updates. The role requires extensive J2EE experience, SPA development, DevOps and CI/CD expertise, and active Public Trust/MBI clearance supporting an IRS Criminal Investigation system.

Develop and own full-stack web features from design through deployment, monitoring, and optimization. Build APIs, backend services, responsive user experiences, SQL queries, and relational database schemas. Modernize legacy systems, troubleshoot performance issues, participate in code reviews, and collaborate with product and design teams in an agile continuous-delivery environment. The role emphasizes secure, maintainable, scalable code, technical ownership, and thoughtful use of AI-assisted development tools.

Develop and maintain software in an agile, test-driven environment using pair programming. Lead technical decisions involving application and data model design, mentor engineers, collaborate cross-functionally with product and design, and ensure application stability and performance. Participate in on-call support and improve system reliability. Use AI developer tools to accelerate development and improve code quality.

Design, architect, develop, and maintain OneStream Marketplace solutions using web, cloud, SQL, and enterprise platform technologies. Lead design and code reviews, define APIs and coding standards, optimize application and database performance, support deployment automation, and ensure software quality. Mentor engineers, train new hires, guide requirements discussions, approve pull requests, and collaborate with technical and non-technical stakeholders to deliver customer-focused solutions.

Build and evolve scalable backend systems and APIs for a large SaaS platform. Partner with Product, Design, and QA from ideation through deployment, contribute to microservices architecture, improve testing and observability, identify operational risks, and mentor teammates. The role emphasizes reliable, maintainable solutions, strong collaboration, architectural decision-making, and continuous improvement.

Develop and deploy a secure, scalable, bi-directional integration between ServiceNow and JIRA. Synchronize incidents, demands, change requests, and other work items across platforms using REST/SOAP integrations, webhooks, authentication models, and cross-platform data mapping. Design custom ServiceNow applications and integration architectures that meet enterprise security, governance, and SDLC standards while supporting Department of Veterans Affairs healthcare IT missions.

Lead full‑stack engineering work to design, build, and maintain core product features (React/Next.js, Node.js, Firebase, GCP). Drive architecture, deployment, testing, performance, and developer experience. Mentor engineers, conduct code reviews, collaborate with CTO and product, support customers, and help scale the product and engineering culture.

Develop and support Power Platform and SharePoint solutions throughout the software development lifecycle. Responsibilities include requirements gathering, architecture, design, development, testing, deployment, documentation, migrations, workflow automation, dashboards, forms, end-user support, training, and stakeholder communication. The role integrates SharePoint Online with Power Apps, Power Automate, and Power Pages while coordinating multiple projects and mentoring team members.

Design, build, test, deploy, and support full-stack Salesforce and integration solutions. Develop frontend components, backend services, APIs, data models, REST and event-driven integrations, and AI-powered automations. Use Salesforce technologies including LWC, Apex, SOQL/SOSL, and Flows. Apply AI-assisted development throughout the SDLC while maintaining code quality, security, and performance. Contribute to CI/CD, automated testing, code reviews, Agile ceremonies, architecture, debugging, and cross-functional technical collaboration.

Designs, develops, tests, and deploys SAP Analytics Cloud planning and reporting solutions for federal clients. Responsibilities include creating data models, stories, analytical applications, calculations, data actions, and business logic using JavaScript and SAC-native features. The role translates business requirements into technical specifications, configures demonstrations, resolves defects, and collaborates with architects, data integration teams, consultants, and subject matter experts.

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.

Evaluate AI coding-agent interactions for usefulness, correctness, engineering judgment, reasoning quality, and user trust. Provide rigorous, opinionated feedback distinguishing response quality levels and help define best practices for tools such as OpenAI Codex, Claude Code, and Cursor. This contract role requires strong software engineering expertise, familiarity with AI-assisted development workflows, and the ability to assess code and explanations without deeply reviewing or executing every line.

Lead full-stack development for secure, scalable mission planning and command-and-control software supporting space communications programs. Build frontend interfaces and backend services, design APIs, translate mockups into applications, conduct code reviews, improve quality and security, and mentor junior engineers. Work with modern web frameworks, containerized microservices, and highly secure government environments while owning technical problems end to end.

Design, develop, and implement scalable software solutions and modern applications for consumer banking. Collaborate in an Agile environment, contribute to architectural and design decisions, build distributed service-based components, and incorporate scalability, manageability, and maintainability. The engineer will work across multiple initiatives, collaborate with teammates, mentor engineers, and help deliver consumer-facing products.

Design and implement event tracking and behavioral analytics, build and maintain A/B and multivariate experimentation pipelines, integrate tools like PostHog or GrowthBook, create dashboards and data pipelines for experiment results, and work with marketing to rapidly deploy landing page variants.

Design, build, and maintain core LIMS software across the SDLC; own architecture, data management, business rules, and embedded control components; plan installations/upgrades, provide operational support, ensure compliance and documentation, and mentor junior engineers.

Architects and owns highly available infrastructure and Kubernetes-based platforms supporting autonomous systems. Builds Golang backend services, platform tooling, observability systems, dashboards, alerts, and log aggregation. Partners with product teams to launch services, performs performance analysis, manages cloud upgrades, and participates in incident response and postmortems. Collaborates on cloud security risk assessments, intrusion detection, threat-feed systems, risk mitigation, and SaaS payment processes. Provides architectural leadership and mentorship across engineering teams.