---
title: "Arnav Bhattacharya - Associate Tech Lead in Gurgaon | Tal"
description: "Meet Arnav Bhattacharya, Associate Tech Lead @ Zinnia | Java, Go | Design | Scale | GenAI based in Gurgaon. AI stack includes claude code, codex, and cursor."
image: "https://tal.club/meet/arnav-bhattacharya-1/share-image"
---

# Arnav Bhattacharya on Tal

## Headline

Associate Tech Lead @ Zinnia \| Java, Go \| Design \| Scale \| GenAI

## About

I'm a Backend & Distributed Systems Engineer with 8\+ years of experience building and modernizing production systems across logistics, SaaS, travel\-tech and insurance\. My strongest areas are Java, Go, AWS, microservices, event\-driven architecture, Kafka and MongoDB, with a particular interest in systems where correctness, concurrency, performance and reliability matter\. In my current role as an Associate Tech Lead at Zinnia, I stay hands\-on across architecture, design, implementation, technical reviews and production ownership\. Some of the problems I've worked on include reducing the latency of an authorization layer from 1\.6s to 400ms and diagnosing Kafka consumer\-group instability caused by blocking database work\. I've also built authorization\-aware task visibility, migrated APIs toward ports\-and\-adapters architecture, and fixed a memory\-intensive MongoDB aggregation\. Before Zinnia, at Delhivery, I worked on high\-throughput logistics systems and contributed to decomposing tightly coupled legacy components into independently deployable Go services\. I also re\-architected latency\-sensitive Python APIs in Go, reducing the response time of one API from 28ms to 7\.6ms, and worked on production MongoDB upgrades and infrastructure/resource issues\. I enjoy problems where the interesting part isn't just writing the code, but understanding why the system behaves the way it does, identifying the real bottleneck or failure mode, and designing a solution that remains correct under concurrency, scale and failure\. I'm particularly interested in high\-scale backend systems, distributed systems, financial/payment infrastructure, developer platforms and consumer products, where I can remain deeply technical while taking broader ownership of architecture and engineering decisions\. Outside my core work, I'm developing a multi\-provider LLM gateway in Go \(OpenAI, Anthropic, Azure and Gemini\), exploring LLM API design, provider abstraction and production reliability patterns\. Open to senior backend and technical leadership roles, including international relocation\. Core areas: Java \| Go \| Spring Boot \| AWS \| Kafka \| MongoDB \| Redis \| Kubernetes \| Distributed Systems \| Microservices \| System Design \| Event\-Driven Architecture

## Location

Gurgaon

## AI stack

claude code

codex

cursor

openai

## Work experience

Associate Tech Lead at Zinnia, Nov 2024 \- Present · 1 yr 11 mos, Gurugram, Haryana, India, Spearheaded the transition to Hexagonal Architecture across 5\+ backend services, enhancing domain isolation and testability\. Achieved a remarkable 75% reduction in API latency by re\-engineering a high\-traffic authorization layer\. Designed advanced MongoDB aggregation pipelines, cutting query overhead by over 40% for high\-concurrency services\.

Senior Developer at Delhivery, Apr 2022 \- Nov 2024 · 2 yrs 8 mos, Gurugram, Haryana, India, Spearheaded the modernization of a legacy platform, transforming a monolith into microservices, tripling deployment frequency\. Re\-architected Python APIs in Golang, reducing response time by 70% and enhancing concurrency under peak loads\. Led a zero\-downtime upgrade of MongoDB, ensuring seamless production cutover with zero incidents\. Instituted observability practices, improving system reliability and reducing mean time to detect performance issues\.

Software Engineer at Gainsight, Oct 2020 \- Apr 2022 · 1 yr 7 mos, Hyderabad, Telangana, India, Migrated workflow execution pipelines to a proprietary in\-house messaging infrastructure, eliminating third\-party dependency overhead and improving operational efficiency without incremental infrastructure investment\. Built multiple migration jobs with detailed validations to onboard clients from Salesforce to Gain\- sight platform\.

Software Engineer at Yatra Online Pvt Ltd, Feb 2019 \- Oct 2020 · 1 yr 9 mos, Gurgaon, Haryana, India, Designed and delivered core booking amendment and manage\-booking workflows, enhancing transactional reliability\. Implemented supplier integration frameworks and invoice generation systems, expanding platform revenue capabilities\. Developed paid seat\-selection workflows, improving partner ecosystem coverage in high\-volume travel operations\.

Application Development Associate at Accenture, Mar 2018 \- Feb 2019 · 11 mo, Gurugram

## Education

Bachelor of Technology, Computer Engineering, GL bajaj institute of technology and management

Intermediate, Science and Mathematics, Springer Public School

[View the original profile](https://tal.club/meet/arnav-bhattacharya-1)

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "Person",
      "@id": "https://tal.club/meet/arnav-bhattacharya-1#person",
      "name": "Arnav Bhattacharya",
      "url": "https://tal.club/meet/arnav-bhattacharya-1",
      "image": "https://tal.club/meet/arnav-bhattacharya-1/profile-photo.jpg",
      "description": "Meet Arnav Bhattacharya, Associate Tech Lead @ Zinnia | Java, Go | Design | Scale | GenAI based in Gurgaon. AI stack includes claude code, codex, and cursor.",
      "jobTitle": "Associate Tech Lead",
      "worksFor": {
        "@type": "Organization",
        "name": "Zinnia"
      },
      "hasOccupation": {
        "@type": "Occupation",
        "name": "Associate Tech Lead"
      },
      "homeLocation": {
        "@type": "Place",
        "name": "Gurgaon"
      },
      "alumniOf": [
        {
          "@type": "EducationalOrganization",
          "name": "GL bajaj institute of technology and management"
        },
        {
          "@type": "EducationalOrganization",
          "name": "Springer Public School"
        }
      ],
      "knowsAbout": [
        "claude code",
        "codex",
        "cursor",
        "openai"
      ],
      "mainEntityOfPage": {
        "@id": "https://tal.club/meet/arnav-bhattacharya-1#webpage"
      }
    },
    {
      "@type": "ProfilePage",
      "@id": "https://tal.club/meet/arnav-bhattacharya-1#webpage",
      "url": "https://tal.club/meet/arnav-bhattacharya-1",
      "name": "Arnav Bhattacharya on Tal",
      "description": "Meet Arnav Bhattacharya, Associate Tech Lead @ Zinnia | Java, Go | Design | Scale | GenAI based in Gurgaon. AI stack includes claude code, codex, and cursor.",
      "dateModified": "2026-09-20T22:13:08.638Z",
      "isPartOf": {
        "@id": "https://tal.club/#website"
      },
      "mainEntity": {
        "@id": "https://tal.club/meet/arnav-bhattacharya-1#person"
      },
      "primaryImageOfPage": {
        "@type": "ImageObject",
        "url": "https://tal.club/meet/arnav-bhattacharya-1/profile-photo.jpg",
        "contentUrl": "https://tal.club/meet/arnav-bhattacharya-1/profile-photo.jpg",
        "caption": "Arnav Bhattacharya profile photo on Tal"
      },
      "inLanguage": "en-IN"
    }
  ]
}
```