Abhinav Pathak

Abhinav Pathak

@BackendArchitect

Backend Engineer with 4.5+ years designing fault-tolerant, event-driven architectures using Java 21, Spring Boot 3, and Kafka. Highly skilled in deploying scalable clusters on Kubernetes (AKS) and extending traditional microservices capabilities through the integration of Generative AI and RAG (Agentic Workflows) pipelines.

BACKEND
ARCHITECT

Building systems that handle millions of requests, not just websites that look pretty.

Experience

Cognizant

Associate Software Developer

2021 - Present (4+ Years)

Tech Arsenal
Java 21Spring BootKafkaRedisK8sDockerPostgreSQLAWS
Education

Bachelor of Technology

Computer Science & Engineering

Architectural Case Studies

Java 21Spring Boot 3KafkaRedisK8sPythonFastAPILangChainPostgreSQLStripe

TicketBlitz

Polyglot Event Ticketing Platform

Polyglot, production-grade distributed system combining Java Spring Boot with Python FastAPI and LangChain for high-performance AI operations.

TicketBlitz Demo 1TicketBlitz Demo 2
8 Microservices
Pessimistic Locking
0% Overselling
Survival Mode AI
Kafka Sagas
Resilience4j
Circuit Breakers
Rate Limiting
Testcontainers
90% Coverage
GITHUBVIEW DETAILS →
FastAPILangGraphChromaDBDockerGemini 1.5

Fault-Tolerant RAG Bot

Generative AI & Autonomous Agents

A resilient RAG system with self-correcting logic, automatic API key rotation, and graph-based validation workflows.

Self-Healing Auth
Circular Key Rotation
Hallucination Guard
GITHUBVIEW DETAILS →
Spring CloudOpenFeignZipkinResilience4j

Dist. Library Core

Microservices Ecosystem

Fault-tolerant microservice ecosystem with gateway routing and inter-service communication.

4 Microservices
Centralized Auth
Circuit Breakers
GITHUBVIEW DETAILS →
DockerPostgreSQLFlywayActuator

Smart Parking API

DevOps & Observability

Containerized REST API with structured logging, distributed tracing, and database migrations.

Structured Logs
Correlation IDs
80% Test Cov
GITHUBVIEW DETAILS →
Java 21AlgorithmsFile I/OValidation

MediTrack Logic

Algorithmic Core

Intelligent appointment booking engine with auto-rescheduling and specialist routing algorithms.

Smart Scheduling
Conflict Resolution
Symptom Matching
GITHUBVIEW DETAILS →
Python3MQTTECU-TestInfluxDB

IoT Telemetry Engine

Real-Time Systems

Robust MQTT message handler for real-time automobile telemetry ingestion.

1k+ Msgs/Day
Sub-2s Latency
Real-Time
PROPRIETARY
Python3PandasAutomationETL

DSpace Automation

Python Pipeline

Automated data processing pipeline eliminating manual workflows for library archives.

8hrs Saved/Wk
Auto-Metadata
Zero Manual Ops
PROPRIETARY