**This role is for one of the Weekday's clients** **Salary range: Rs 3000000 - Rs 4500000 (ie INR 30-45 LPA)** Job Title / Position:Lead Developer (Full Stack Node.js + Flutter) Experience:7-10 Years with 3+ as senior developer Domain Preference: Health-tech / Healthcare IT Preferred Location: Hybrid [Mumbai] Employment Type: Full-time **Role Overview** A Lead Developer (Full Stack Node.js + Flutter) with 7-10 years of experience is expected to combine strong hands-on engineering capability with technical leadership, architecture ownership, and delivery accountability across backend, mobile, and cloud environments.The role typically requires end-to-end responsibility for scalable application development using Node.js on the backend and Flutter for cross- platform mobile application development, while guiding engineering teams and collaborating with cross-functional stakeholders. **Experience** 7-10 years of relevant software development experience, including substantial experience in full stack product engineering and at least 3 or more years in a senior developer, lead developer, or technical lead role. **Key Responsibilities**  Lead design, development, deployment, and maintenance of scalable full stack applications using Node.js, Flutter, and modern web/mobile engineering practices.  Own backend architecture, API development, integration patterns, and application performance, reliability, and security standards.  Build and guide development of Flutter-based mobile applications for Android and iOS, ensuring maintainability, responsiveness, and quality delivery.  Drive cloud-native deployment and application operations on AWS, including services for compute, storage, databases, monitoring, and CI/CD pipelines.  Collaborate with product managers, designers, QA teams, DevOps engineers, and business stakeholders to translate business requirements into technical solutions and delivery plans.  Conduct code reviews, enforce coding standards, mentor team members, and support estimation, sprint planning, and technical decision-making.  Troubleshoot production issues, optimize performance, and ensure best practices in testing, release management, and system observability. **Required Core Skills and Attributes**  Backend & API Expertise: Strong Node.js/Express.js skills in RESTful APIs, asynchronous programming, backend system design, and databases (MongoDB, PostgreSQL, MySQL).  Frontend & Mobile Mastery: Hands-on Flutter experience with state management, third- party API integration, cross-platform mobile delivery, plus JavaScript/TypeScript proficiency.  Design & Architecture: Knowledge of object-oriented principles and design patterns (Singleton, Factory, Observer, MVC); data structures, nice-to-have architecture decisions, scalable code practices and distributed systems.  Cloud & Operations: Strong AWS understanding (Cognito, RDS, CloudWatch, API Gateway, IAM, CI/CD); excellent debugging, performance optimization, secure coding, production support.  Leadership & Soft Skills: Ownership mindset, agile team leadership, stakeholder communication; nice-to-have: DevOps, release management, open-source contributions, mixed backend/mobile team experience.  Coding and Quality Best practices: Excellent debugging, performance optimization, secure coding, and production support capabilities. Required Experience Background  Proven experience delivering production-grade full stack platforms, mobile applications, and backend services at scale.  Experience translating business requirements into technical architecture, sprint execution plans, and reliable product releases.  Prior exposure to microservices, authentication/authorization, system integration, and performance tuning is highly desirable.  Experience in team leadership, mentoring developers, code review ownership, and driving engineering best practices are expected.  Nice-to-have experience includes distributed architecture ownership, DevOps collaboration, cloud cost/performance optimization on AWS, release management, and leading cross- functional engineering teams. **Preferred Educational Qualifications**  B.E. / B.Tech. in Computer Science are preferred for candidates with strong architecture, product engineering, or technical leadership exposure.  Postgraduate qualifications such as M.Tech., M.S., are preferred qualifications.  Equivalent practical experience with a strong record of successful product delivery may also be considered. **Preferred Candidate Profile**  Technical Leadership: Leads by example with hands-on coding balanced by technical leadership, focusing on quality, delivery excellence, maintainability, and team development in fast-paced environments.  Process & Environment Fit: Comfortable with multiple stakeholders, evolving priorities, and modern engineering practices (agile, CI/CD, testing, monitoring, cloud-first deployment). ### Must-have skills NodeJS, Flutter