Rust Developer

SORAMITSU is an award-winning global financial technology company with expertise in developing blockchain-based solutions for digital asset and identity management. Our mission is to use blockchain to promote innovation and solve pressing societal challenges.

SORAMITSU is the developer of and major contributor to the open-source blockchain platform Hyperledger Iroha, which is tailored for enterprise and public-sector use. Hyperledger Iroha, a project of Hyperledger Foundation, part of the Linux Foundation, has a permissions system that is scalable and performant.

Utilizing blockchain, SORAMITSU has developed a digital currency for the National Bank of Cambodia, a CBDC Proof-of-Concept with the Bank of the Lao PDR, a closed-loop payment system for the University of Aizu in Japan, an identity verification system prototype for Bank Central Asia in Indonesia, we were finalists in the Monetary Authority of Singapore CBDC Challenge, and are currently participating in Asia-Pacific’s first proof-of-concept test of a cross-border, multi-currency security settlement system using distributed ledger technology with the Asian Development Bank. We have also conducted proof-of-concept tests for several major Japanese enterprises, and are active contributors to open source projects, such as Klaytn, South Korea’s leading Layer-1 blockchain, KAGOME, the C++ Polkadot Host implementation, the SORA crypto-economic system, the Polkaswap DEX, and the DeFi wallet, Fearless Wallet

Based on these experiences, SORAMITSU aims to deploy cutting-edge technology on a global level in order to expedite financial inclusion and health, mitigate economic inefficiencies, and contribute to the fulfilment of the Sustainable Development Goals.

You can find out more by visiting our homepage at or check out our Twitter profile.

We are looking for a talented Rust developer who shares a passion for Blockchain technology.

You will be responsible for:

Design, implement and support software productionWrite tests that guarantee high quality of functional and non-functional characteristics of produced codePerform code review for other developersTake part in making architectural decisionsTransfer your knowledge to other team membersSelect and integrate frameworks and libraries which will be the part of software systems

You need to have:

Experience in Rust, with a fair knowledge of the language specification, particularly in writing safe Rust codeThorough knowledge of the standard library, and algorithmsExperience in writing asynchronous code in RustAbility to debug and troubleshoot large programsWillingness to learn and work with unsafe programming in RustProficient understanding of code versioning and git-flowExcellent command of English, proficiency in Japanese will be considered a plus

Would be nice if you had:

Knowledge of networking protocols, p2p and distributed systemsKnowledge of unsafe programming, with a focus on C-ABI linkageExperience working with WebAssembly (WASM)Experience working with JS and TSFamiliarity with on-chain scripting in Solana or SubstratePrevious experience in embedded software developmentExperience working with highly concurrent systems

You are:

Collaborative and able to to work closely with cross-functional teams, share knowledge, and contribute positively to group discussions and decision-making processesCapable of solving problems and demonstrating strong analytical and critical thinking with the ability to identify and resolve technical challenges efficientlyTeam Player who can Work effectively within a team, respects diverse opinions, and contributes to a positive and inclusive team atmospherePaying meticulous attention to code quality, documentation, and project requirements, ensuring deliverables meet high standardsDemonstrating leadership qualities by driving product technical growth, mentoring juniors, and contributing to team’s tech directionDisciplined with strong work ethic, self-motivation, and a commitment to consistently delivering high-quality code and meeting project deadlines, attending technical meetingsPresentable proficient in conveying technical information effectively through presentations, whether to team members, stakeholders, or at technical conferences (as an advantage)Efficiently prioritizes tasks to maximize productivity, ensuring successful project completion

What we offer:

A relaxed remote-first (work from anywhere) work environment with flexible working hoursA permanent, full-time role with a rapidly growing international team of professionalsAn educational budget to support your continued growth and developmentOpportunities to attend global meetups and conferences for learning and/or speaking engagementsAn opportunity to be a part of an award-winning team designing a better world through decentralized technologies

This is a remote position. Our distributed team is mostly spread across Europe and Asia. Team meetings are held generally during European working hours, and it is expected that you would adapt if necessary and be available accordingly.

If you have the required qualifications and are passionate about the Web3 industry, we encourage you to apply for this exciting opportunity.

SORAMITSU values diversity and is committed to providing equal opportunities for all applicants and employees. Our employment decisions, such as hiring, promotion, discipline, and termination, are based solely on an individual’s qualifications, performance, and business needs. We do not discriminate against anyone on the basis of their race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other protected status under federal, state, or local law.

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