Lead Full Stack Engineer - Node.js/React.js

Job Description :

Lead Full Stack Engineer

Bengaluru - Onsite - Full-time

5 - 7 years - Lead / Senior IC

Build at the scale of billions of events

LeadSquared is a Sales Execution and Marketing Automation SaaS platform trusted by 2,000+ enterprises across 40+ countries.

Our platform processes 2B+ events every day.

We're building the world's best CRM and solving real engineering problems at serious scale.

The Role :

We're looking for a Lead Full Stack Engineer with strong JavaScript/TypeScript expertise across Node.js and React.js.

This is a hands-on technical leadership role where you'll build scalable systems, solve complex engineering problems, mentor engineers, and influence architecture and technical direction.

You won't just write code. You'll own problems end-to-end.

What You'll Own :

• Build and ship production-grade features across Node.js and React.js.
• Design scalable APIs, microservices, and integrations.
• Build data pipelines and real-time systems using Kafka, Redis Streams, or similar.
• Own database design, performance, and scalability across SQL and NoSQL systems.
• Drive technical design reviews, code quality, and engineering practices.
• Mentor engineers and contribute to technical decisions.
• Build reliable, observable systems and improve production performance.

What We're Looking For:

• 5 - 7 years of hands-on full-stack engineering experience.
• Strong JavaScript/TypeScript, Node.js, and React.js expertise.
• Experience with APIs, microservices, and event-driven architecture.
• Strong SQL and experience with PostgreSQL/MySQL.
• Working knowledge of MongoDB, Redis, Elasticsearch, and PySpark.
• Experience with data pipelines, Kafka/RabbitMQ, cloud, Docker, Kubernetes, and CI/CD.
• Strong understanding of testing, code reviews, system design, and performance optimisation.
• Ability to mentor engineers and lead technical decisions.

Our Stack:

• Frontend: React.js, Redux/Zustand, Webpack/Vite
• Backend: Node.js, Express, NestJS, GraphQL, REST
• Data: Kafka, Redis Streams, ETL, dbt, Airflow
• Databases: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch
• Infra: AWS/GCP, Docker, Kubernetes, Terraform, CI/CD
• Observability: Datadog, Grafana, OpenTelemetry, ELK

Why LeadSquared ?

• Real scale. Real ownership. Real engineering challenges.
• Build systems processing 2B+ events every day
• Work with enterprise customers across 40+ countries
• Own meaningful architecture and technical decisions
• Strong engineering culture focused on quality and technical depth
• Learning budget for courses, conferences, and certifications
• Competitive compensation, performance bonuses, and ESOPs
• Comprehensive health insurance