Available for opportunities

Raghavendra Singh Chauhan

Software Engineer with 3 years owning critical microservices and infrastructure at Deutsche Bank. Enjoy diving deep into internals, building scalable systems, debugging, and mentoring.

raghavendra0360@gmail.com · LinkedIn · GitHub · +91-8240159243

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Portfolio

Featured Projects

A collection of work that showcases my passion for building

🧠

Java 25 Spring Boot

AI-Powered Knowledge Hub

Distributed knowledge management with intelligent search and RAG capabilities

Virtual Threads + Kafka fan-out for parallel LLM embeddings
Vector search via pgvector HNSW + Redis caching

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🔬

PyTorch FastAPI

Diffu-Syn

Synthetic data generation using diffusion models with event-driven architecture

Event-driven training with async job orchestration + auto retry
DDPM diffusion model for tabular data with Polars

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🔐

C++ gRPC

Distributed Auth System

High-performance authentication service built for scale

High-frequency distributed authentication using gRPC
Secure token signing with ECDSA cryptography

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📈

Python Quant

Quant Trading Engine

Backtesting framework for quantitative trading strategies

Quantitative-finance based trading logic
Strategy validation on historical market datasets

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⭐

Python 37k+ ★

OpenBB Terminal (OSS)

Contributions to the leading open-source investment research platform

Merged 2 PRs fixing data integrity issues
Fixed US rates export + insider trading display

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❤️

Deep Learning LSTM

MI Detection

Neural network for detecting myocardial infarction from ECG signals

LSTM binary classifier trained on PTB ECG data
Outperformed CNN-based models in detection accuracy

View Notebook →

Experience

Professional Journey

From open source to enterprise-scale systems

Jan 2024 – Nov 2025 📍 Gurugram, India

Career Break

Indian Civil Services Examination (Mathematics Optional)

Deep study of Linear Algebra, Analytics, Numerical Analysis algorithms
Ranked in the top 2% of 800K+ candidates, reaching stage-2

Sep 2023 – Dec 2023 📍 Pune, India

Software Engineer (Associate)

Deutsche Bank

Fast-track promotion to Associate (SDE-II) for autonomous ownership of critical microservices
Built Spring Boot data-ingestion microservices processing 50M+ records/day
Implemented MQ and Spark pipelines with 80%+ test coverage and mTLS encryption

Jul 2021 – Sep 2023 📍 Pune, India

Software Engineer (Analyst)

Deutsche Bank

Owned JVM tuning for 24-node Hazelcast cluster—analyzed G1GC logs for high-load cVA runs
Co-led Gravity modernization delivering $500K annual savings
Drove Hazelcast 4.x & Camel 3.x upgrade—averting 8-week compliance delay
Optimized Drools engine, reducing rule-evaluation latency 20%

May 2020 – Sep 2020 🌐 Remote

Google Summer of Code

INCF Belgian Node · Student Developer

Developed cell-tracking module using the Viterbi Algorithm with ImageJ
Improved performance by reducing complexity from O(n³) to O(n²)
Delivered the first production-ready iteration of the tracker

Expertise

Technical Arsenal

💻

Languages & Frameworks

Java Spring Spring Boot Python SQL

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Infrastructure

Hazelcast Spark Kafka Redis Elasticsearch GCP AWS Docker

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Concepts

Distributed Systems Concurrency System Design OOP

🤖

AI/ML

LLM Integration RAG pgvector HNSW PyTorch Diffusion Models

🎓 Education

IIEST Shibpur

B.Tech in Electronics & Telecommunications

9.15 / 10 CGPA

West Bengal, India · 2017 – 2021

🏆 Achievements

💰

Deutsche Bank Recognition Award 2022

Cash reward for delivering critical modules

📜

Certifications

Spring Professional, deeplearning.ai RAG, AWS Bedrock

🎖️

Indian Army SSB Selection (2017)

Cleared 5-day evaluation for Engineers