Job Title: Full Stack Developer (5 to 8 Years) Product: Health and Fitness App Employment Type: Full-time Location: (On-site / Hybrid / Remote, add as applicable) About the Role We are building a health and fitness app that helps users track workouts, nutrition, goals, and progress through a smooth mobile and web experience. We are hiring a Full Stack Developer (5 to 8 years) to build end-to-end features across backend services, APIs, and modern web frontends, with strong focus on performance, scalability, and user experience. Key Responsibilities Build and maintain scalable backend services and APIs (REST and/or GraphQL) Develop responsive, user-friendly web interfaces (dashboard, admin, coach/trainer portals, internal tools) Translate product requirements into clean, maintainable, tested code across the stack Design data models and optimize queries for performance and reliability Implement authentication and authorization (OAuth2, JWT, RBAC) Integrate third-party services (payments, notifications, analytics, fitness platforms, wearables) Implement background jobs, queues, and scheduled workflows Ensure security best practices (OWASP), privacy, and safe handling of user data Set up observability (logs, monitoring, alerts) and improve system reliability Collaborate with product, design, mobile, and QA teams, participate in code reviews and sprint planning Required Skills and Experience 5 to 8 years of full stack development experience in product companies or high-quality engineering teams Strong backend skills in one of the following : Node.js (TypeScript) , Java (Spring Boot) , Python (Django/FastAPI) , Go , or .NET Strong frontend experience with modern frameworks: React / Next.js (preferred), Angular, or Vue Solid understanding of API design, versioning, caching, and integration patterns Strong database experience (PostgreSQL/MySQL, plus NoSQL is a bonus) Experience with cloud platforms (AWS / GCP / Azure), Docker, and CI/CD pipelines Strong foundation in system design, performance optimization, and debugging Comfortable writing unit tests, integration tests, and maintaining good code quality standards Good to Have Experience in health, fitness, wellness, or consumer subscription apps Integrations with Apple Health, Google Fit, Fitbit, Garmin, Strava (or similar) Experience with event-driven systems (Kafka, RabbitMQ, SQS), WebSockets, real-time features Knowledge of microservices and service-to-service authentication Exposure to compliance concepts (GDPR, HIPAA), especially if handling sensitive health data Experience building admin panels, CMS, or internal tools for operations teams What You’ll Work On (Examples) User onboarding, profiles, goals, and progress tracking Workout and nutrition planning modules, analytics dashboards Subscription flows and payments (if applicable) Notification and engagement systems (push, email, SMS) Admin/ops tooling to manage content, users, coaches, and programs
