Substrate runtime Developer (Remote)


SORAMITSU is an award-winning financial technology company delivering blockchain-based solutions that represent the next-generation of fintech and DeFi for enterprises, universities, and governments.

Established in Japan in 2016. Currently employing over 100 people across the globe with offices in Switzerland, Russia, Cambodia, Thailand, Japan, Niue and Dubai.

We have many widely recognized projects in both institutional and crypto, including BakongFearless WalletKAGOMEFUHON, and of course, our core contributions to Hyperledger IrohaSORA and Polkaswap.

SORAMITSU was recognized as the “Central Bank Digital Currency Partner of the Year 2020” by Central Banking.

You can familiarize yourself with our various activities by visiting our homepage at or check out our Twitter profile.

Our distributed team is spread across Europe, Asia, Middle East, North America and Oceania. We use Telegram for communication, Zoom for meetings, Google Workspace and Notion for collaboration, and Jira, Confluence and GitHub to facilitate agile development processes in general.

SORAMITSU CO., LTD. / Substrate runtime Developer (Remote)の求人情報

仕事内容As a Substrate runtime Developer at SORAMITSU, you'll be working on some of our most exciting projects including: SORA network that provides tools for decentralized applications that use digital assets and Polkaswap - the eagerly anticipated AMM DEX (decentralized exchange) based on SORA network.

Don’t worry about Substrate in the job description! You’ll be focused on extending SORA and Polkaswap with new features.

【Responsibilities include:】
・Design, implement and support software production.
・Write tests that guarantee high quality of functional and non-functional characteristics of produced code.
・Perform code review for other developers.
・Take part in making architectural decisions.
必須スキル・経験【The ideal candidate has:】
・2+ years of experience in development.
・Experience in Rust, with a fair knowledge of the language specification.
・Experience in Substrate development.
・Good knowledge of Substrate, Polkadot, Kusama ecosystem.
・Thorough knowledge of the standard library, and algorithms.
・Understanding cryptography algorithms, blockchain concepts is a plus.
・Understanding of blockchain consensus algorithms work is a plus.
・Knowledge of one or more blockchain protocols: Ethereum,Polkadot
・Understanding of basics in DevOps engineering.
・Knowledge of principles and practices in Agile development.
・Proficient understanding of code versioning and git-flow.
その他【Working Conditions】
・Flexible 40-hour work week;
・Permanent, full-time position;
・The international team of professionals;
・Possibility to work from offices around the globe;
・Possibility to visit global meetups and conferences for education and/or for giving a speech;
・An absence of a strict dress code;
・Relaxed work environment.

【Your work time】
You’ll spend 50% of your time writing new pallets, 20% of your time checking PRs from your colleagues, 20% of your time on fixing and researching some technical issues and helping other teams and 10% of your time on meetings.

【Your schedule】
Our team is distributed and everyone has his own schedule. The main thing is to join daily team meetings and reply in chats if you were tagged. As was mentioned above you’ll spend most of your time on coding and it’s great! We don’t spend much time on meetings that we don’t need.


東京都Link Square Shinjuku 16F, 5-27-5, Sendagaya, Shibuya-ku, Tokyo
企業概要financial technology company