Open to opportunities

Vishwajeet User

@vishwajeetuser1

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I've built and scaled Shibarium into a multi-region L2 processing 10M+ daily transactions.

India

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What I'm looking for

I'm open to remote and global opportunities where I can build and scale blockchain protocols, resilient multi-region infrastructure, privacy-focused L2 systems, and cryptographic applications.

I've led protocol, infrastructure, and SRE engineering for Shiba Inu since 2022, building Shibarium L2 from genesis configuration through mainnet launch. I designed the protocol setup, cloud infrastructure, validator operations, staking configuration, and multi-region node clusters supporting Puppynet and mainnet.

I scaled Shibarium to handle 10M+ daily transactions while reducing cloud infrastructure costs by 70–80% and observability spend by 95%. I automated more than 80% of routine operations and maintained 99.99% uptime across validator, sentry, RPC, and boot-node infrastructure on AWS and GCP.

Before Shibarium, I built zk-SNARK circuits and researched elliptic-curve cryptography for DRDO-sponsored work, Electron Labs, and Numecrypto. I also developed decentralized credential verification, token settlement, voting, and Hyperledger Fabric systems for NAD, Chipin, IBM Hyperledger, and LNMIIT.

I'm currently building a privacy-focused L2 using OP-Stack and Zama TFHE to support encrypted smart contracts on-chain.

Experience

Work history, roles, and key accomplishments

Current

Blockchain Protocol, Infrastructure & SRE Lead

Current

Shiba Inu

Jan 2022 - Present (4 years 7 months)

Designed and built the protocol setup and cloud infrastructure for Shibarium L2, taking it from initial genesis configuration to live mainnet. Managed multi-region node clusters on AWS and GCP, maintaining 99.99% uptime for Puppynet testnet and mainnet.

Applied Cryptography Engineer

DRDO

Jan 2019 - Dec 2022 (3 years 11 months)

Designed and compiled Zero-Knowledge Proof circuits using zk-SNARKs for privacy-preserving credential validation and cross-chain bridge state proofs. Optimized SHA-512 cryptographic hashing within R1CS constraint systems, lowering prover execution latency for light-client verification on-chain.

zk SNARK Circom Rust Cryptography Groth16

Blockchain & Smart Contracts Developer

National Academic Depository

Jan 2016 - Dec 2019 (3 years 11 months)

Architected a decentralized academic document verification engine for NAD, India, facilitating tamper-proof credential hashing and instant multi-institution validation nationwide. Developed smart contracts for an Indonesian corporate equity marketplace (Chipin), engineering token minting, escrow locks, and automated settlement logic in Solidity.

Solidity Ethereum Smart Contracts Security Audits Hyperledger Fabric Go

Systems, Embedded & Networking Engineer

LNMIIT

Jan 2014 - Dec 2016 (2 years 11 months)

Implemented optimized AES-128 symmetric encryption in C on ARM Cortex-M microcontrollers, writing custom key expansion and round transformation routines. Built real-time embedded systems on ARM microcontrollers utilizing timer interrupts, PWM, GPIO configuration, and direct register manipulation.

C ARM Cortex M Embedded Systems Matlab Android Networking

Education

Degrees, certifications, and relevant coursework

LNMIIT

Bachelor of Technology, Computer and Communication Engineering

2012 - 2016

Grade: 6.9/10

Activities and societies: Teaching Assistant for Computer Network Lab; Mentor for Embedded Systems Lab; Organised national workshop on Number Theory and Cryptography; Team Representative at Techfest IIT Bombay; Finalist in ROBOTIX at IIT Kharagpur.

Pursued a B.Tech in Computer and Communication Engineering, graduating with a CGPA of 6.9/10. Completed a thesis on an Ethereum-based online voting system.