Gajinder Singh
Buidl-ing Edgey Stuff at g11tech
Gurugram, Haryana, India
Summary
🤩
Rockstar🎓
Top SchoolGajinder Singh is a technologist-founder with 15+ years blending deep engineering chops and product-led entrepreneurship across payments, marketplaces, fintech and blockchain. He co-founded PayU India and later launched multiple startups and fintech plays, now leading g11tech to build ZK, payments and network-driven businesses that scale value delivery. Hands-on in back-end systems and open source, he has contributed to notable Ethereum projects like Lodestar and ethereumjs, improving execution, logging, metrics and engine API integrations. A dual IIT Delhi computer scientist with Harvard executive coursework, he pairs systems-level technical depth (including CV and AI backgrounds and three US patents) with a contrarian, market-first approach to growth. Not obvious at first glance: he actively combines decentralized identity and token-era infrastructure work with practical payments pragmatism, aiming to lower barriers to trade and capital.
5 years of coding experience
11 years of employment as a software developer
Indian Institute of Technology Delhi (IIT Delhi)E-Commerce/Electronic Commerce, E-Commerce/Electronic Commerce at Harvard Business School Executive Education
Github Skills (16)
typescript10
javascript10
typescripts10
go10
api10
back-end-development10
apidoc10
ethereum10
blockchain10
typescript-types10
metric9
logging9
evm9
build-tools8
build-engine8
Programming languages (20)
Github contributions (5)
ChainSafe/lodestar
Apr 2021 - Jan 2023
🌟 TypeScript Implementation of Ethereum Consensus
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1033 reviews, 378 commits, 693 PRs in 1 year 10 months
Contributions summary:Gajinder primarily contributed to the back-end aspects of the Lodestar project, focusing on enhancements to the core functionalities. Their commits include implementing and refining logging features, improving file handling, adding metrics and other tools to the system, and incorporating configuration options for various system components. The user also addressed issues related to data processing and error handling.
consensusserenityethereumbeacon-chainproof-of-stake
ethereumjs/ethereumjs-monorepo
Feb 2022 - Jan 2023
Monorepo for the Ethereum VM TypeScript Implementation
Role in this project:Back-end Developer
Back-end DeveloperContributions:728 reviews, 188 commits, 302 PRs in 11 months
Contributions summary:Gajinder primarily focused on refactoring the client's execution from full sync and integrating it with the engine API. Contributions included moving execution-related code out of the synchronizer and the parent class as well as migrating execution out of the synchronizer. The user also implemented JWT token-based authentication for the engine API, as well as other refactors. Additionally, the user worked on implementing support for the EIP-4844 blob transactions.
monorepoethereumjavascriptblockchainevm
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