---
title: "Arnab Chatterjee - Senior Engineer in Bangalore Urban | Tal"
description: "Meet Arnab Chatterjee, Engineering @ HashiCorp | Building Distributed, Scalable and Resilient systems. based in Bangalore Urban. AI stack includes anthropic apis, antigravity, and langfuse. Explore public work links including github."
image: "https://tal.club/meet/arnab-chatterjee/share-image"
---

# Arnab Chatterjee on Tal

## Headline

Engineering @ HashiCorp \| Building Distributed, Scalable and Resilient systems\.

## About

I'm a Staff Backend Software Engineer with over 13 years of experience specializing in the architecture, design, and implementation of secure, intelligent, and highly available distributed systems\. My passion lies in solving complex engineering challenges and leading technical initiatives from ambiguous requirements to production\-ready platforms\. Throughout my career, I've delivered critical backend solutions across diverse domains, including Retail/Logistics and Financial Services \(FinTech\)\. At R3, I spearheaded the Application Security architecture for a next\-generation digital currency product and was instrumental in building novel tokenization platforms for major financial institutions\. Most recently, at HashiCorp \(IBM\), I serve as a technical lead in the Vault Core team and have architected core capabilities for Agentic Vault to secure non\-human identities \(NHI\) and agentic AI workflows\. My technical mastery spans modern back\-end technologies and complex domain expertise: 🎯 Core Engineering: Golang, Java, Kotlin, Product Design, Microservices, Concurrent and Multithreaded systems, and Systems Performance\. 🔐 Security, Cloud & IAM: Deep expertise in Application Security \(Defense in Depth\), Kubernetes, Hashicorp Vault, Keycloak \(including designing custom SPIs for agentic token exchange\), Auth0, IBM Verify, Native OAuth 2\.0 integration, and modern CI/CD practices\. 🧩 Specialized Expertise: Securing Agentic AI systems, Non\-Human Identity \(NHI\) management, and DLT \(Corda, Hyperledger, Ethereum\)\. I thrive in technical leadership roles, focusing on pragmatic execution, cross\-functional collaboration, and translating technical vision into clear, actionable tasks\. I am deeply committed to continuous learning and scaling team productivity, designing reusable AI\-assisted harnesses to compress product development cycles and automate security \. I am also dedicated to community contribution, presenting at conferences, and authoring research papers\. Always open to connecting about distributed systems, agentic application security, and FinTech innovation\.

## Location

Bangalore Urban

## AI stack

anthropic apis

antigravity

langfuse

ollama

opencode

claudecode

## Work experience

Senior Engineer at HashiCorp, Apr 2025 \- Present · 1 yr 5 mos, Bengaluru, Technical Lead – Agentic Vault \- Serving as the Technical Lead for HashiCorp Agentic Vault, specializing in securing Non\-Human Identities \(NHI\) and enabling secure agentic AI workflows\. I drive the end\-to\-end product milestone delivery lifecycles for Agentic Vault's Identity and Access Management \(IAM\) capabilities while shaping enterprise\-wide AI engineering practices\. Key Achievements & Responsibilities: \- Distributed Systems & Core Architecture: Architected and delivered the native OAuth 2\.0 integration for Vault, establishing JWTs as a first\-class citizen for machine identity authentication with zero critical defects\. Successfully resolved highly complex distributed systems issues in Go, upholding stringent product quality standards and ensuring the reliability of core architectural components\. \- Enterprise IAM & IdP Strategy: Spearheaded complex Identity Provider \(IdP\) integration strategies across multiple enterprise platforms\. Designed and implemented custom extensions for advanced token exchanges, unblocking critical agentic workflows for key early\-adopter customers\. \- AI Engineering & Team Productivity: Developed and scaled reusable AI\-assisted coding harnesses to compress development cycle times, subsequently driving adoption through cross\-regional knowledge\-sharing sessions\. Technical Evangelism & Strategy: Investigated emerging standards like the Cross App Authorization \(XAA\) protocol, co\-authored strategic alignment documents for Agentic Vault architecture, and presented pre\-launch product positioning directly to executive leadership and central architecture committees\. Core Technologies: Golang, HashiCorp Vault, Native OAuth 2\.0 / JWT, AI\-Assisted Engineering, Distributed Systems\.

Staff Software Engineer at R3, Mar 2024 \- Apr 2025 · 1 yr 2 mos, On\-site, Designing scalable financial backbone systems using Distributed Ledger technology\.

Senior Software Engineer at R3, Dec 2022 \- Mar 2024 · 1 yr 4 mos, Mumbai, Maharashtra, India, I am a part of the Corda Engineering team, working to build next\-generation DLT products using R3 technologies, Corda and Conclave\.

Solutions Engineer at R3, Jun 2021 \- Dec 2022 · 1 yr 7 mos, Mumbai, Maharashtra, India, \- Architecting the solution architecture of various Enterprise\-grade solutions in the Financial Domain, including but not limited to Digital Currencies, Captial Markets, FMIs, etc\. \- Designing and hands\-on development of distributed applications \(CorDapps\) focused on scalability, high availability, performance, resilience, maintainability and high security\. \- Also developing privacy\-focused solutions using Trusted Execution Environment technologies like Intel SGX and R3 Conclave \(https://www\.intel\.com/content/www/us/en/newsroom/news/intel\-solutions\-help\-combat\-modern\-slavery\.html\#gs\.j04eui\)\. \- Good knowledge of Cryptography and its applications\. \- Focus on developing cloud\-native applications with serverless \(k8s\) \- Helping FMIs and Banks build tokenization use cases on DLT

Blockchain Specialist \- Innovation at Bosch, Jan 2020 \- Jun 2021 · 1 yr 6 mos, India, Roles: 1\. Leading Architecture of Blockchain Platform Development 2\. Designing components and modules for Platforms 3\. Domain Analysis, Object Modelling, Microservice Design for Platforms and Solutions 4\. Strategy Design for Customer Digital Transformation using DLT, IoT, AI, and ML\. Solutioning using Convergence to holistically approach the problem\. 5\. Innovation Projects, Research Papers, Patents 6\. Co\-innovation, Design Thinking, and Solutioning for Customer Projects\. 7\. Team Mentoring and Facilitation in Co\-innovating and Collaboration with like\-minded professionals and teams, within and outside organization\.

Committee Member \- ISO/TC 307 Blockchain & DLT at ISO \- International Organization for Standardization, Mar 2019 \- Dec 2022 · 3 yrs 10 mos, Bengaluru Area, India, Tasks & Contribution: \- Contribution to Technical reports and standards in the field of Security, Privacy and Identity\. Also recently started working on the Advisory Group for Digital Currencies \- To participate in fortnightly online meetings of the members with information to Panel conveners, Chair of the committee and BIS\. \- To review the document when it comes for a vote and send the consolidated comments to BIS along with India’s voting position\. \- To attend corresponding ISO online \(zoom\) meetings for the corresponding project\. \- To participate in corresponding LITD 29 panel meetings\.

Senior Engineer \- Innovation at Bosch, Aug 2018 \- Jan 2020 · 1 yr 6 mos, Bangalore, Roles: 1\. Architecting, designing, and implementation of projects using DLT in domains like a\. Agri & Smart Farm b\. Automotive c\. Supply\-chain d\. Healthcare 2\. Platform Design and Development using the convergence of DLT, AI and IoT technologies

Technical Lead at NEC Technologies India Ltd\., Apr 2018 \- Aug 2018 · 5 mos, New Delhi Area, India, 1\. Architecting PoCs designed on Hyperledger Fabric Platform at Customer Locations offshore\. Domains varied from Logistics and Supply chain, Retail and Finance\. Applications included stakeholder from Foreign Banks, Supply Chain Giants 2\. Tuned for QoS Parameters like Performance, Scalability, and Security 3\. Achieved transactional throughputs over 150tx/s on Hyperledger Fabric Platforms

Senior Member Technical Staff at NEC Technologies India Ltd\., Oct 2015 \- Apr 2018 · 2 yrs 7 mos, Roles: 1\. Architecting Pan India Logistical Container Tracking Platform using Spring and J2EE technologies \- Logistics Data Bank 2\. Scaling Platform to support 400 concurrent transactions/second and support integration with more than 15 different external data sources 3\. Tuning QoS parameters like Security, Availability, and Performance

Member Technical Staff at NEC Technologies India Ltd\., Aug 2013 \- Sep 2015 · 2 yrs 2 mos, Roles 1\. Application design & development in Java EE with Spring, JSF and JS\. 2\. Performance Testing & Tuning J2EE applications\. 3\. Development of Data Interchange Services and integration of EE application with third party applications\.

## Education

Engineer’s Degree, Computer Science, Guru nanak institute of technology

CISCE; Class X; Class XII, St\. Paul’s Mission School

## Public links

- github: https://github\.com/arnabkaycee

[View the original profile](https://tal.club/meet/arnab-chatterjee)

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