Work

Work history

Companies and projects, with the dates, logos, and screenshots.

Filter

2025 to present

Solana Developer Relations

· · · ·

I create blockchain finance content at Quicknode.

Speaking about managed funds for Quicknode Solana

NVDA rallies, and the allocation unbalances between TSLAx and NVDAx

2023 to 2024

Developer Education Advocate

I created a four-day Solana training program, taught to hundreds of students from Romania to US Ivy League universities. I co-created and presented the 2024 Developer Bootcamp. I was responsible for the Solana developer courses, the highest-retention content on solana.com, and ran a team of six Superteam contributors who maintained them. I wrote solana-helpers, about 30,000 downloads a week, and Kite, the TypeScript library on top of Solana Kit.

Teaching the Columbia Blockchain Club for the Solana Foundation

2022 to 2023

Portal Payments

CTO

· ·

CTO of Portal Payments. Two prizes at the Solana Sandstorm hackathon. We built a novel key recovery mechanism that allowed wallets to be recovered with cryptographically secure yet memorable phrases, and solved the “sent to wrong account” problem by creating an identity token displayed when entering a recipient address.

Portal Payments home, with a dollar balance and named recipients

2021 to 2022

Technical lead and advisor, CMC Invest

Technical lead and advisor on CMC Invest, the CMC Markets iPhone app for shares, ETFs, and funds in the UK.

2021

First engineer

· · ·

First engineer at Humanloop, a Y Combinator company. The product was a document interface for tagging and classification: highlight a word or phrase, apply a label, and train from those marks.
Humanloop exited to Anthropic in 2025.

Humanloop prompt editor, with a chat template and a live session

2020

Engineering lead

Engineering lead for a team of six and 160,000 users. I made search results deterministic, migrated the chat backend with no downtime, shipped the first revenue feature, live workshops, and cut CI from 42 minutes to 2.

2018 to 2020

Founder

Entrepreneur First, London. The idea was to plug a product into an integrated SaaS business instead of assembling billing, users, CRM, and messaging by hand. It did not continue after a cofounder split.

2015 to 2020

Founder

· ·

I founded CertSimple, used by Monzo, Buzzfeed, and most London fintechs. Verifying the legal entity behind a website, for display in the “green bar” browsers showed at the time, took up to a month. I invented a process that reduced the time to a few minutes. The company reached £22k a month, was featured in TechCrunch, and was part of Entrepreneur First.
CertSimple exited, selling its core technology to DigiCert, and sold the name and brand to Expedited Security in January 2020.

2014 to 2015

Make Us Proud

Tech lead

MyCognition Rise. A site for MyCognition's Rise cognitive training product, and the payment and signup flow around it. Node, Stripe, and Quaderno.
Microsoft Surface 2. Microsite for the Surface 2 UK launch. CSS, Node, the Twitter and Instagram APIs, and Azure.

2014

Tech lead

Waves watched Twitter for a keyword, hashtag, or user and alerted on changes in sentiment, volume, and related words. When the Prime Minister of Ukraine resigned, Waves sent alerts 40 minutes before BBC and Sky had published a story.
Online Wednesday was an internal tool for American Express to find products people were talking about and rank interest using Facebook and Twitter.

2013 to 2014

Founder

Deploy from version control to the cloud. Firework brought commits, deploys, logs, and CI into one place, then used that to get the right build into an environment.

2012 to 2013

Senior Developer

I conceived and built Tips, where customers of retailers and brands trade tips and get recognized by their peers and by the brand.
The same work included Facebook apps for ratings, stories, and questions.
Social Deployer, which took a GitHub commit to an autoscaled environment on Amazon EC2.

2008 to 2012

Google Creative Lab

Getting American Business Online. Google's program to get businesses online. It was the largest Google App Engine app at the time, in 33 countries, with a layout engine so a local team could adapt the site to a state or a country.
Android 4 launch. Worldwide retail training for the Android 4 and Galaxy Nexus launch, with a quiz, results reporting, and a site internationalized to every Google market.
YouTube World View. Citizens put questions to world leaders, including Barack Obama, David Cameron, and Angela Merkel. It was the first use of the YouTube Live API, and the live interviews were watched by millions of people.
Google's 10th birthday in Germany. An interactive site for Google's work over the previous decade in Germany. Built in a weekend, advertised on German television.

2010 to 2011

Founder

Realtime, threaded, anonymous discussions. No logins: each person in a thread got an animal avatar. It reached the front page of Hacker News. The site later closed, because it needed moderation to stay safe.