Backend Engineer

Vibav
Mahendran

Go · Python · Microservices

I build backend systems that scale — APIs, microservices, event-driven pipelines, and search infrastructure. 2× startup experience across Travel, FinTech, and Data Security, with a sharp focus on correctness, observability, and performance.

✈ Travel ₹ FinTech 🔒 Data Security
vibav2004@gmail.com Resume ↗ GitHub ↗ LinkedIn ↗
700+ GFG Problems
550+ LeetCode Problems
8.92 CGPA
01

Technical Skills

Languages & Frameworks
Go Gin Python SQL
Databases
PostgreSQL Redis OpenSearch CockroachDB
DevOps & Streaming
Kafka Docker Kubernetes AWS Git
CS Fundamentals
DSA OS OOP DBMS Networks Distributed Systems Microservices
02

Experience

Jun 2025 — Nov 2025
Chennai, TN
SDE-I
Xeni
  • Built a multi-vendor hotel/room mapping system with 95%+ accuracy, preventing hundreds of misbookings and safeguarding significant revenue.
  • Developed a unified payment library used across 4–5 microservices, reducing code duplication by 70% and improving delivery speed by 50%.
  • Optimized OpenSearch autosuggest query for hotel data index, resulting in a 25–30% increase in user engagement.
Jul 2024 — May 2025
Remote
Trainee Engineer
Abluva
  • Engineered SQL queries in Snowflake and automated data pipeline processes, reducing inefficiencies by 25% and execution time by 40%.
  • Implemented a native inline Data Access Control (DAC) system for Snowflake, Trino & Databricks, achieving 98% data security.
  • Extended Apache Spark for runtime SQL rewriting using user-specific access rules with dynamic permission resolution via an in-house policy service.
03

Projects

Car Management System
↗
Go PostgreSQL JWT Docker OpenTelemetry Prometheus Jaeger Grafana
  • Shipped a JWT-secured Go REST API for managing Cars & Engines with clean 3-layer architecture backed by PostgreSQL.
  • Full end-to-end observability with OpenTelemetry, Prometheus, Jaeger, and Grafana — reduced debugging time by 40% across 4 execution layers.
URL Shortener
↗
Go Gin Redis
  • High-performance URL shortener API achieving sub-10ms response time with Redis-backed storage.
  • IP-based rate limiting (10 req / 30 min), custom aliases, URL validation, and expiry controls to prevent abuse.
04

Achievements

🏆
Niral Thiruvizha 2.0 — Top 5
State-level hackathon. Finished in the top 5 out of 15,000+ teams and presented the project to Ex-CM Thiru M. K. Stalin and Ex-Deputy CM Thiru Udhayanidhi Stalin.
📊
GFG Rank #2 — Institution
Solved 700+ problems on GeeksforGeeks, ranked #2 at institution level, demonstrating strong algorithmic problem-solving across topics.
💻
550+ LeetCode Problems
Consistent competitive programmer with 550+ solved problems on LeetCode, covering arrays, graphs, DP, and system design patterns.
🎓
Best Outgoing Student
Awarded Best Outgoing Student in CSE, Best Student Award by ISTE, and Best Co-Curricular Student Award.
05

Education

B.E. Computer Science & Engineering
Knowledge Institute of Technology
Salem, Tamil Nadu
2021 — 2025
8.92
CGPA
06

Contact

Email vibav2004@gmail.com Mobile +91 90800 57517 LinkedIn vibav-mahendran ↗ GitHub gitvibav ↗ LeetCode vibav_mahendran ↗ GeeksforGeeks vibavmahendran ↗