We are seeking an experienced and highly skilled Lead Node.js Developer to design, develop, and maintain scalable web applications and enterprise-grade solutions. The ideal candidate will have deep expertise in modern JavaScript, TypeScript, Node.js, and cloud technologies, with a strong understanding of frontend architecture, backend services, application security, performance optimization, and software design principles.

As a Lead Developer, you will play a key role in designing technical solutions, mentoring team members, driving architectural decisions, implementing best practices, and delivering high-quality, secure, and maintainable applications.

Responsibilities

Develop and maintain server-side applications using Node.js and NestJS, writing reusable, testable, scalable, and efficient backend code
Design and implement RESTful APIs and GraphQL APIs for frontend services and third-party integrations
Build secure authentication and authorization systems using JWT and role-based access control
Integrate external services, APIs, and cloud-based solutions, while implementing logging, monitoring, caching, and error-handling mechanisms
Optimize API performance and troubleshoot bottlenecks to ensure high availability and responsiveness
Design and maintain database schemas and data models, working extensively with SQL and NoSQL databases
Optimize database queries and indexing strategies to ensure data integrity, scalability, and high-performance data access
Develop and deploy cloud-native applications on AWS, leveraging AWS services for hosting, storage, monitoring, and scalability
Participate in CI/CD pipeline implementation and deployment automation, monitoring application performance and troubleshooting production issues
Write comprehensive unit tests, ensure high test coverage, conduct code reviews, and enforce development best practices using tools such as ESLint and SonarQube
Apply frontend and backend security best practices to prevent and mitigate Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF/XSRF), and CORS vulnerabilities, including secure JWT token management and authentication workflows
Design scalable and maintainable software architectures applying SOLID principles and design patterns such as Singleton Pattern, mentor junior and mid-level developers, and collaborate with cross-functional teams including Product Managers, Designers, QA Engineers, and DevOps teams

Requirements

8+ years of professional software development experience
Proven experience building large-scale applications using JavaScript, TypeScript, and Node.js
Expertise in GraphQL for API design and development
Background in application architecture and performance optimization
Skills in testing and cloud deployments
English proficiency at an Upper-Intermediate level (B2) or higher