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Eli Aleyner on the TechTO stage

Eli Aleyner

Co-founder, AtomicJar, Docker

DevToolsOn TechTO stages since 2024

Eli Aleyner co-founded AtomicJar, the company behind the open-source Testcontainers integration-testing framework. It raised a $25M Series A led by Insight Partners in January 2023 and was acquired by Docker that December. He is now at Docker, and spoke at a TechTO fireside in 2024 on lessons learned through an acquisition.

On the TechTO stage ×1

First seen on the TechTO stage in 2024. Every talk is searchable — ask the archive about Eli

In their words

you don't have to necessarily be a co-founder that started the company you can join along the journey and it's been done many times before

TechTO, Sep 2024 · watch at 09:05

we spent a lot of time together chatting and realizing that our values were very similar our views on how we were interested in building the company

TechTO, Sep 2024 · watch at 11:49

selling to developers is really hard because most of them some of them have a credit card but they can put very small transactions on that credit card

TechTO, Sep 2024 · watch at 14:39
A few quotes can’t cover everything Eli said on the TechTO stage. 1,600+ talks are searchable.Ask about Eli

More from TechTO ×2

Around the web ×2

Quick answers

What is Eli Aleyner known for?

Co-founding AtomicJar with Sergei Egorov. AtomicJar was the commercial company behind Testcontainers, the open-source integration-testing framework, and Docker acquired it in December 2023.

What is Testcontainers?

An open-source framework that spins up throwaway containerized databases, message brokers and browsers so developers can run integration tests against real dependencies. It had passed 100 million downloads by early 2023.

What happened to AtomicJar?

Docker acquired it on 11 December 2023, in a mix of equity and cash. AtomicJar had raised more than $29M in total.

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Maintained by TechTO · facts sourced and dated · last reviewed Jul 22, 2026