About this role
Newfire Global Partners is a leading technology firm that specializes in building transformative software solutions for some of the world’s most innovative companies. With a presence across four continents, Newfire Global brings deep expertise in digital healthcare, AI-driven analytics, and enterprise technology. The firm’s track record of delivering scalable, high-impact solutions has made it a trusted partner for organizations seeking to drive meaningful change through technology. We are passionate about the purpose-driven mission to help improve the quality of care for patients and are building a collaborative, innovative, and inclusive culture. We are a fully funded company founded by serial entrepreneurs with a stable client base. Opportunity for impact Newfire Global Partners, a leader in developing disruptive healthcare technology, collaborates with Fortune 500 companies and start-ups to drive transformation. Newfire is seeking a Senior/Lead Full Stack Engineer (Node.js + React ) What's the Project? The first part of the project focuses on enhancing the customer’s web registration and content experience to increase gym enrollment conversion and improve content discovery. The work is primarily front-end focused, with integration points into partner gym systems, and includes rebuilding the registration flow to support simultaneous gym enrollment, expanding bi-directional data sharing with gym partners, improving post-registration personalization, and enhancing search functionality and results presentation. The second part supports the customer’s Commercial enrollment funnels, which involve greater backend complexity due to payment and subscription handoffs. The scope consists of a series of targeted improvements across landing pages, personalization, feature flagging, and testing infrastructure, including integration with payment and subscription flows, implementation of LaunchDarkly for new commercial features, full automated test coverage for new or significantly modified code, and continued support for WordPress-based content delivery while contributing to the broader transition toward Contentful. Build and maintain full-stack applications using TypeScript/React and Node.js. Develop integrations with WordPress, Contentful, Zuora, and internal Tivity systems. Design APIs, backend services, data flows, and solutions using DynamoDB and RDS. Stand up and evolve feature flag configurations in LaunchDarkly to support progressive delivery. Use AI-assisted coding tools while ensuring code quality, security, and maintainability. Contribute to automated testing, code reviews, CI/CD, troubleshooting, and technical documentation. Collaborate with Product, Design, QA, and DevOps to deliver reliable healthcare solutions. Translate exploratory R&D concepts (mental health screeners, GLP-1 integrations, clinical adjacencies) into production-quality experiments. For Lead: serve as the day-to-day technical interface with Tivity's team, coordinating work with the client PM and ensuring Senior team members are productive. For Lead: lead technical design, planning, mentoring, and delivery of complex initiatives across the three workstreams. As a Senior team member, you will be expected to actively participate in our hiring processes by serving on interview panels for future roles across the company Nice to have Experience in healthcare, health technology, insurance, or another regulated industry. Familiarity with AWS and cloud-native development. Familiarity with Datadog for observability, APM, logging, and alerting (part of the project stack). Experience with design systems, Storybook, accessibility (WCAG), and responsive applications. Knowledge of healthcare security, privacy, or interoperability requirements (HIPAA, HITRUST, FHIR). Prior experience with clinical instruments (PHQ-2/PHQ-9 or similar), telehealth, or health-tech incubation work. For Lead: experience introducing AI-enabled development practices across engineering teams.