Lead Software Engineer - Node.js + GraphQL

EPAM Systems, Inc.; Chennai District; On-site; INR 4,500,000 - 6,000,000; Full time

Benefits offered by this job

Health benefits

Retirement benefits

Paid time off

Relocation opportunities

Flexible benefits

Job summary

EPAM Systems, Inc. in Chennai, India seeks an experienced Lead Node.js Developer to design, develop, and maintain scalable web applications and enterprise-grade solutions.

You will work across frontend architecture, backend services, security, and performance optimization, guiding a team of engineers. You will lead architectural decisions, implement best practices, design APIs (REST/GraphQL), and ensure high-quality, secure, and maintainable code.

Qualifications

• 8+ years of professional software development experience.
• Experience building large-scale apps with JavaScript/TypeScript and Node.js.
• Strong GraphQL API design and backend systems.
• Ability to mentor junior/mid-level developers and drive architecture.

Responsibilities

• Design and maintain scalable server-side apps using Node.js and NestJS.
• Develop REST and GraphQL APIs, implement secure auth with JWT and RBAC.
• Architect scalable solutions, optimize performance, and ensure code quality.
• Lead CI/CD, testing, code reviews, and collaboration with cross-functional teams.

Skills

Node.js

TypeScript

GraphQL

REST APIs

Security best practices

CI/CD

Testing

Mentoring

SOLID design

Monitoring/logging

Tools

NestJS

AWS

JWT

RBAC

ESLint

SonarQube

Job description

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.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.ResponsibilitiesDevelop and maintain server-side applications using Node.js and NestJS, writing reusable, testable, scalable, and efficient backend codeDesign and implement RESTful APIs and GraphQL APIs for frontend services and third-party integrationsBuild secure authentication and authorization systems using JWT and role-based access controlIntegrate external services, APIs, and cloud-based solutions, while implementing logging, monitoring, caching, and error-handling mechanismsOptimize API performance and troubleshoot bottlenecks to ensure high availability and responsivenessDesign and maintain database schemas and data models, working extensively with SQL and NoSQL databasesOptimize database queries and indexing strategies to ensure data integrity, scalability, and high-performance data accessDevelop and deploy cloud-native applications on AWS, leveraging AWS services for hosting, storage, monitoring, and scalabilityParticipate in CI/CD pipeline implementation and deployment automation, monitoring application performance and troubleshooting production issuesWrite comprehensive unit tests, ensure high test coverage, conduct code reviews, and enforce development best practices using tools such as ESLint and SonarQubeApply 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 workflowsDesign 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 teamsRequirements8+ years of professional software development experienceProven experience building large-scale applications using JavaScript, TypeScript, and Node.jsExpertise in GraphQL for API design and developmentBackground in application architecture and performance optimizationSkills in testing and cloud deploymentsEnglish proficiency at an Upper-Intermediate level (B2) or higherWe offerOpportunity to work on technical challenges that may impact across geographiesVast opportunities for self-development: online university, knowledge sharing opportunities globally, learning opportunities through external certificationsOpportunity to share your ideas on international platformsSponsored Tech Talks & HackathonsUnlimited access to LinkedIn learning solutionsPossibility to relocate to any EPAM office for short and long-term projectsFocused individual developmentBenefit package:Health benefitsRetirement benefitsPaid time offFlexible benefitsForums to explore beyond work passion (CSR, photography, painting, sports, etc.)