About Abhishek
- I'm an Application and Blockchain Architect with deep domain expertise in fintech, spanning crypto exchanges, digital currency systems, cross-border payments, and banking compliance platforms. Over my career, I've moved from Backend Developer to Director of Development, consistently owning architecture and delivery for mission-critical financial systems - including a national Central Bank Digital Currency (CBDC) initiative, a crypto exchange and wallet platform, an AML compliance system for Citibank, a SWIFT-based international payments platform.
- My fintech expertise runs across the full stack of modern financial infrastructure: crypto custody and MPC-based wallet security, KYC/AML compliance (Sardine, Sumsub), payment processing integrations (Spreedly, Checkout.com, Worldpay, Plaid, Cybrid), SWIFT message parsing for cross-border transactions, and blockchain-based settlement and reconciliation systems.
- I've architected trading and custody platforms handling BTC, ETH, LTC, and other digital assets. I also bring strong blockchain and Web3 depth - Hyperledger Fabric, Ethereum, and Solidity smart contracts which I apply directly to solving financial infrastructure problems like tamper-evident ledgers, programmable currency, and decentralized settlement.
- On the engineering side, I build this fintech expertise on a foundation of Java/J2EE and Spring Boot microservices, event-driven architectures (Kafka, RabbitMQ), and polyglot stacks (Node.js, Golang, Java)
- Highlights from my work include directing architecture and delivery for RockWallet, a multi-asset crypto exchange and wallet platform, building distributed-ledger components for RBI's CBDC and Programmable CBDC (PCBDC) initiatives, leading backend development for a SWIFT-based cross-border payments platform, and developing AML compliance systems for Citibank.
- I'm also an early adopter of agentic AI tooling, using it to accelerate delivery without compromising the rigor fintech demands.
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- RockwalletDirector in DevelopmentDIGITAL AND ITNovember 2024 - Today (1 year and 9 months)Hyderabad, India
- Directed end-to-end development of RockWallet, a crypto exchange and wallet platform supporting BTC, BSV, ETH, ERC20 Tokens, LTC, and Ripple, owning architecture, delivery, and team leadership as Director in Development.
- Architected a Java/Spring Boot microservices backend using Kafka, Redis, PostgreSQL, and Docker for a high-availability, trading, and custody platform.
- Led integration of 15+ third-party services spanning KYC/AML (Sardine, Sumsub), payments (Spreedly, Checkout.com, Worldpay, Plaid, Cybrid), blockchain infrastructure (Etherscan, Infura, Arc Node, Whatsonchain, QuickNode), and communications (Twilio, Slack, AWS SES).
- Designed MPC-based wallet architecture with Passkey authentication and end-to-end cryptographic controls to secure customer assets and transactions.
- Delivering the MNEE stable-token platform and a crypto-based neo-banking system, coordinating smart-contract development (Solidity/Hardhat) with backend and integration teams.
- Owned application delivery governance — roadmap planning, architecture reviews, and release management — across multiple concurrent product lines.
- Introduced agentic AI tools and workflows into the engineering process to accelerate development, automate code review, and streamline testing and delivery pipelines.
- NPCIBlockchain Specialist / Application DeliveryDIGITAL AND ITOctober 2023 - November 2024 (1 year and 1 month)Hyderabad, India
- Served as Blockchain Specialist on RBI's Central Bank Digital Currency (CBDC) and Programmable CBDC (PCBDC) initiatives, building distributed-ledger components for a national-scale E-Rupee digital currency system.
- Designed and implemented blockchain solutions using Hyperledger Fabric alongside Java- and Golang-based Spring Boot microservices.
- Built resilient data and messaging layers using Kafka, MariaDB, and KeyDB, and integrated object storage via Minio.
- Implemented ImAuth-based authentication and cryptographic modules to meet the stringent security requirements of a regulated financial infrastructure project.
- Owned application delivery across development, testing, and deployment for security-critical, high-compliance blockchain services.
- DLT LabsTechnology Lead / Platform Architect / Lead DeveloperDIGITAL AND ITJune 2018 - September 2023 (5 years and 3 months)Hyderabad, India
- Served as Technology Lead and Platform Architect across four blockchain products, defining architecture standards, technology roadmap, and engineering practices adopted platform-wide.
- Architected DL Asset Track, a blockchain-based reconciliation system built for Walmart, using Hyperledger Fabric to provide a shared, tamper-evident ledger across supply-chain participants.
- Led design of ElementDB, a database-on-blockchain product using Hyperledger Fabric, and DL Certify, a Dapp-based certification system, using Ethereum, Solidity, and Remix for smart-contract development and testing.
- Directed a polyglot microservices architecture spanning Java, Node.js and Golang on Spring Boot, integrating Cassandra, CouchDB, PostgreSQL, and Elasticsearch for data ingestion and search.
- Established event-driven messaging (Kafka, RabbitMQ) and Redis caching, containerized services with Docker, and deployed on AWS for scalable, production-grade delivery.
- Applied cryptographic techniques and scripting-based automation to strengthen platform security and streamline operational workflows; mentored and led a cross-functional engineering team.
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Education
- Bachelor of TechnologyGautam Buddh Technical University2010Bachelor of Technology