Senior / Lead Full-Stack Engineer (AI-Native | Node.js & Next.js)

About LumiMeds LumiMeds is a fast-growing U.S.-based telehealth startup focused on weight management and long-term metabolic health. We are building the next generation of e-commerce and clinical infrastructure from the ground up. As an early-stage company, we move quickly, operate with limited layers, and expect high ownership from every team member. There is no bureaucracy here — decisions happen fast, priorities evolve, and builders thrive. We are a remote-first, globally distributed team that values clarity, accountability, and people who take initiative rather than wait for direction.We are looking for an AI-native engineer who actively uses AI-assisted workflows in daily development (e.g., code generation, debugging, architecture exploration, documentation, testing automation) and knows how to leverage AI to move faster and build better systems. About the Role We’re hiring a Senior Full-Stack Engineer with deep experience in Node.js, Next.js, and scalable cloud architectureto help lead and evolve our core platform. This is a high-impact, hands-on role. You’ll drive architectural decisions, own major initiatives end-to-end, and help shape both the technical direction and engineering culture of the company. This role is ideal for someone who has worked in fast-moving, high-scale environments and wants to apply that experience to building meaningful products in healthcare. Key Responsibilities 🚀 Architecture & Technical Leadership Lead architectural decisions across backend, frontend, infrastructure, and data layers Establish engineering standards, best practices, and code quality guidelines Mentor and review work of junior and mid-level engineers Own technical planning, sprint scoping, and long-term platform evolution Translate ambiguous product requirements into clear, scalable technical solutions 🛠 Backend Engineering (Node.js) Design and build high-performance REST and/or GraphQL APIs Architect scalable data models and schemas (PostgreSQL preferred) Implement secure authentication, RBAC, rate limiting, and API throttling Optimize performance, caching, and reliability (Redis, queues, background jobs) Build integrations with third-party systems (e.g., Stripe, Twilio, external APIs, internal EMR systems) 🎨 Frontend Engineering (Next.js + React) Build performant, production-grade UIs using Next.js (SSR, SSG, ISR) Drive component architecture, state management, and front-end best practices Collaborate with product and design to deliver intuitive, complex workflows Ensure SEO optimization, accessibility, performance, and mobile responsiveness ☁️ DevOps & Cloud Architect and manage deployments on AWS, Vercel, or similar platforms Own CI/CD pipelines, release workflows, and automated testing frameworks Improve observability with monitoring, logging, and alerting (Datadog, Sentry, CloudWatch, etc.) Enforce security best practices for secrets, environments, and infrastructure Qualifications 6+ years of professional engineering experience, including senior or lead-level responsibility Strong expertise in Node.js and Next.js / React Proven experience designing and scaling production systems Solid understanding of databases, distributed systems, and API design Experience working in startup, scale-up, or high-growth environments Comfortable owning projects end-to-end with minimal supervision Strong communication skills and ability to collaborate across teams Must be proficient in English Nice to Have Experience working at large tech companies or high-scale startups Background in healthcare, fintech, or regulated industries Experience with multi-region or global user bases Prior experience mentoring engineers or leading technical initiatives Why Join LumiMeds High ownership and real technical influence Work on meaningful, real-world healthcare problems Remote-first culture with flexible work arrangements Competitive compensation based on experience Opportunity to help shape the engineering foundation of a growing healthtech platform How to Apply If this role sounds like a fit, we’d love to hear from you. Please submit your application in English and ensure your resume reflects relevant experience for the role. This position is open to candidates based in approved locations, depending on the role and business needs. Qualified applicants will be contacted for next steps. LumiMeds is an equal opportunity employer. We hire based on skills, experience, and alignment with our values. Please note: This role requires professional-level English communication and availability to work U.S. business hours.