Backend Engineer Development Department
Ginco Inc. is a Tokyo-based blockchain infrastructure company that provides enterprise-grade crypto wallet, node, and indexer services to crypto asset exchanges, financial institutions, and companies building Web3, NFT, and security token businesses in Japan.
Projects
About Ginco Inc.
Ginco Inc. is a blockchain technology company based in Tokyo, Japan, positioning itself as a professional partner for companies entering the Web3 business. It provides enterprise-quality, cloud-based blockchain infrastructure including the Ginco Enterprise Wallet (Japan's top market-share business crypto wallet), the GEW Monitoring Solution for integrated multi-wallet management, Ginco Web3 Cloud (an all-in-one platform combining non-custodial wallet SDKs, hot wallet services, indexer APIs, and node hosting), Web3 Professional Service for end-to-end business creation support, and Ginco Wallet, a self-custody mobile wallet for consumers. Its clients include crypto asset exchanges, financial institutions (such as Mizuho Financial Group and SBI Liquidity Market), and companies pursuing NFT, security token, and Web3 initiatives (such as MIXI/DAZN and ANDART). The company supports a wide range of blockchains and emphasizes financial-institution-level security, compliance, and reliability.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will develop and maintain the backend of Ginco Enterprise Wallet, an enterprise cryptocurrency wallet supporting 80 token types and 35 blockchains. The role covers feature development, infrastructure design, incident response, root-cause investigation, and operational improvement.
Requirements
- At least 2 years of development experience using statically typed languages such as Golang, TypeScript, Java, C++, or C#
- Experience designing, building, and operating infrastructure in cloud environments
- Experience designing and developing systems using container technologies
Responsibilities
- Define requirements, design, and implement support for new cryptocurrencies and tokens
- Design and implement reusable features based on enterprise customer needs
- Respond to system inquiries
- Triage incidents and provide rapid initial responses
- Investigate the causes of incidents
- Modify systems to prevent recurrence
- Improve operational workflows
- Design, build, and operate highly reliable and high-performance systems
Benefits
- Social insurance
- Labor insurance
- Regular health checkups
- Flexible working hours
- Shuffle lunch program
- Book purchase subsidy
- Remote work option