After many years building distributed financial systems in Java, using a variety of technologies, I was fortunate to have the opportunity in 2018 to join the newly established Quorum Engineering team at JP Morgan. In this capacity I helped build the GoQuorum platform, a fork of Ethereum which allows private blockchain networks to be built with additional enterprise features. This has given me in-depth exposure to all aspects of Ethereum and Blockchain systems in general, which works well alongside my Golang/Java distributed systems experience. Over the last few years, I have been working on contract roles, assisting clients in building their Web3 systems. Most of my experience has been gained over the full development life cycle, working to tight timescales whilst maintaining quality and producing good documentation. My team leadership skills include managing global teams of up to 9 people. I am comfortable in client-facing roles, making technical recommendations, estimating timescales and performing analysis of requirements. I have worked in a variety of high-pressure environments, including the New York Stock Exchange and I bring a cool, calm demeanor

Satpal Sandhu

After many years building distributed financial systems in Java, using a variety of technologies, I was fortunate to have the opportunity in 2018 to join the newly established Quorum Engineering team at JP Morgan. In this capacity I helped build the GoQuorum platform, a fork of Ethereum which allows private blockchain networks to be built with additional enterprise features. This has given me in-depth exposure to all aspects of Ethereum and Blockchain systems in general, which works well alongside my Golang/Java distributed systems experience. Over the last few years, I have been working on contract roles, assisting clients in building their Web3 systems. Most of my experience has been gained over the full development life cycle, working to tight timescales whilst maintaining quality and producing good documentation. My team leadership skills include managing global teams of up to 9 people. I am comfortable in client-facing roles, making technical recommendations, estimating timescales and performing analysis of requirements. I have worked in a variety of high-pressure environments, including the New York Stock Exchange and I bring a cool, calm demeanor

Available to hire

After many years building distributed financial systems in Java, using a variety of technologies, I was fortunate to have the opportunity in 2018 to join the newly established Quorum Engineering team at JP Morgan.

In this capacity I helped build the GoQuorum platform, a fork of Ethereum which allows private blockchain networks to be built with additional enterprise features.

This has given me in-depth exposure to all aspects of Ethereum and Blockchain systems in general, which works well alongside my Golang/Java distributed systems experience.

Over the last few years, I have been working on contract roles, assisting clients in building their Web3 systems.

Most of my experience has been gained over the full development life cycle, working to tight timescales whilst maintaining quality and producing good documentation. My team leadership skills include managing global teams of up to 9 people. I am comfortable in client-facing roles, making technical recommendations, estimating timescales and performing analysis of requirements.

I have worked in a variety of high-pressure environments, including the New York Stock Exchange and I bring a cool, calm demeanor

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Language

English
Fluent

Work Experience

Blockchain Consultant at Creative Blockchain Ltd
September 22, 2022 - November 12, 2025
Working via my own Limited Company assisting clients in building their Web3 systems. This includes writing smart contracts and building the middle-tier for interfacing with the blockchain. I am also able to assist with setting up blockchain nodes and infrastructure.
Blockchain Engineer at Smarter Contracts
February 1, 2024 - November 12, 2025
Contract blockchain engineer focused on storage of marketing consents with digital asset rewards. Contributed to tokenomics paper, improved mid-tier implementation, modified a Polygon Solidity contract to reduce per-transaction costs by ~35%, and ported a JavaScript API implementation to Golang. Worked on a Vault wallet management plugin and investigated migration to alternative L2/L3 networks. Set up nodes (e.g., Arbitrum) and ported a contract to Rust for Stellar.
Blockchain Engineer at ClearBank
October 1, 2022 - October 31, 2023
Developing a fiat-backed digital currency proof-of-concept, integrating with the client's backend via API on Azure. Created ERC20 solidity contracts and tooling to deploy/manage on-chain accounts; built REST API to transfer assets between ClearBank client accounts and contracts; integrated Metamask wallet interactions and monitored emitted contract events.
Blockchain Engineer at JP Morgan Chase
April 1, 2018 - October 1, 2022
Initially built a new privacy transaction manager in Java (Tessera). After core Tessera work, enhanced and supported the GoQuorum geth implementation using Golang; provided client support for Liink network and JPM Coin deployments; debugged issues in the EVM and consensus protocols (IBFT & Raft). Participated in the Ethereum Enterprise Alliance technical work group. Added Vault plugin support and extended compatibility with Hyperledger Besu. Explored Layer 2 solutions to connect GoQuorum to public Ethereum networks (e.g., ChainBridge & Polygon).
Technical Team Lead at JP Morgan Chase
June 1, 2014 - April 1, 2018
Led a team of Java developers to design and build RAISe, a high-throughput, guaranteed-delivery payment message processing system. Drove CI adoption and Agile practices across micro-services for the Virtual Account Management system; acted as Agile Champion and mentored teams on software delivery best practices.
Senior Analyst/Developer at Goldman Sachs International
November 1, 2004 - June 1, 2014
I spent eight years as a Senior Analyst/Developer in the Clearance and Settlements team. Here I delivered a number of successful projects for settlement and clearance of Securities and Gilts on the Crest, SWIFT and SIS settlement systems. I later moved to the Asset Servicing team, where I served two years as the Project Lead on the asset servicing ASPEN Desktop.

Education

B.Sc. (Honours) Computers & Cybernetics at University of Kent, Canterbury
January 11, 2030 - November 12, 2025

Qualifications

Certified Scrum Master
August 1, 2015 - November 12, 2025
Java Certified Programmer
January 1, 2000 - November 12, 2025
Chartered Engineer - Member of the British Computer Society
January 11, 2030 - November 12, 2025

Industry Experience

Financial Services, Software & Internet, Professional Services, Computers & Electronics, Telecommunications

Experience Level

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