Senior Node Js. Developer

About WTF Gyms WTF Gymsis India’s fastest-growing gym and fitness brand, redefining the health and wellness landscape with technology-driven innovation. We take pride in being one of the mostadvanced and tech-enabled fitness ecosystemsin the country. Our mission is to seamlessly integratefitness, technology, and user experiencethrough next-gen solutions. As we continue to expand rapidly, we are looking for ahighly skilled Senior Node.js Developerto join our dynamic team and help us elevate our backend infrastructure to global standards. Role Overview We are seeking anexperienced and passionate Senior Node.js Developerwho excels in both backend development and team leadership. In this role, you will be responsible for architecting, designing, and developing backend systems that power our digital platforms — ensuring performance, scalability, and reliability at every step. You’ll collaborate closely with cross-functional teams, lead best coding practices, and play a key role in delivering secure, efficient, and high-performing systems for WTF Gyms’ growing technology ecosystem. Key Responsibilities Backend Development: Lead the design, development, and maintenance of backend systems usingNode.js . Ensure systemscalability, efficiency, and high availability . Technical Leadership: Mentor and guide junior developers to maintain high-quality code standards. Drivebest practicesin code reviews, design patterns, and deployment. System Architecture: Collaborate with product and DevOps teams to designscalable, microservices-based architectures . Contribute to system design decisions and architecture documentation. Cloud Infrastructure (AWS): UtilizeAWS servicesfor provisioning, deployment, and performance optimization. Monitor cloud resource usage and cost efficiency. Database Management: Design and managePostgreSQLschemas, ensuring data integrity, security, and optimal performance. API Development: Build and maintainRESTful APIsto support front-end features and third-party integrations. Implement authentication, validation, and error-handling standards. CI/CD & DevOps: Implement and maintainCI/CD pipelinesfor automated testing, deployment, and monitoring. Collaborate with DevOps for smooth release management. Troubleshooting & Optimization: Diagnose and resolve performance bottlenecks, bugs, and technical issues promptly. Continuously optimize application performance and reliability. Qualifications & Technical Skills Education:Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent professional experience). Experience:Minimum5+ yearsof hands-on experience in Node.js backend development (with at least 2 years in a senior/lead role). Core Technical Expertise Strong command ofNode.js ,JavaScript (ES6+),andExpress.js . Proven experience withPostgreSQL(schema design, optimization, and query performance). Expertise inRESTful API design , authentication, and secure communication protocols. Working knowledge ofAWS Cloud Services(EC2, S3, Lambda, RDS, etc.). Understanding ofmicroservices ,Docker , andKubernetesenvironments. Familiarity with front-end stacks (React.js, HTML, CSS) is a plus. Proficiency withGitand version control workflows. Experience inCI/CD pipeline setup(Jenkins, GitLab CI, Travis CI). Knowledge oftesting frameworkslikeJest ,Mocha , orChai . Awareness ofweb security best practices— encryption, authentication, and authorization. Experience usingmonitoring tools(Prometheus, Grafana) andlog management systems(ELK Stack). Exposure toAgile/Scrummethodologies for software development. Strong problem-solving, debugging, and performance optimization skills. Excellent documentation and communication skills.