Available for opportunities

Rajat Kumar Kansal

Backend Engineer → Distributed Systems

Backend engineer with 4+ years of experience building scalable systems at Amazon and tiket.com. Experienced in designing APIs, handling high-volume traffic, and improving system reliability and performance.

Java Kafka Spring Boot AWS Kubernetes PostgreSQL Redis gRPC

View My Work → Get in Touch

Years Experience

Ownership

Work Style

Problem Solver

Engineering Mindset

Tech Stack

Skills & Technologies

Technologies I use to build scalable, reliable backend systems.

Languages

Java (Spring Boot) C / C++ Go

Distributed Systems

Kafka gRPC Event-Driven Arch. CDC

Databases

PostgreSQL MongoDB Redis Elasticsearch

Infrastructure & Cloud

AWS (Lambda, SQS, SNS, Fargate) Kubernetes Docker Microservices

Observability

Grafana Prometheus CloudWatch Kibana

Design

LLD / HLD API Design Circuit Breakers Sharding

Recognition

Achievements

Some highlights from my journey.

🏆

Top 5.9% Globally

Rating 1852 on competitive coding — 90+ contests among ~900K participants.

🎖️

CSI President

Led 10+ tech initiatives, organized 5+ coding competitions, mentored 100+ students.

🥉

Bronze Medalist

NCC Run (2KM), Chitkara University.

📊

9.81 CGPA

B.E. Computer Science, Chitkara University. Graduated May 2023.

🏆

Hackathon Winner

Won Smart-a-thon 2021 by building a scalable solution under time constraints.

👨‍💻

Technical Leadership

Co-led university tech fest, organizing coding challenges, workshops, and sessions for 200+ participants.