Lead Full Stack Engineer
First seen by Alion on Sep 30, 2026.
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
Skills
Node.js, React.js, Javascript, TypeScript, SQL, PostgreSQL, Redis, ElasticSearch, Full Stack