Product security engineer (Lead engineer)
Content + Source + Freshness • 14 Feb 2026 • 95% confidence
Offer value
High value due to the innovative nature of the role, strong potential for impact in security engineering, and competitive salary range.
- Engage in innovative global security projects
- High salary potential in the fintech sector
- Requires advanced technical expertise in security and blockchain
Pros
- Involvement in cutting-edge technology and global projects
- Room for leadership and strategic contribution
- High salary range with competitive compensation
Cons
- Requires extensive specialized knowledge in security and blockchain
- High expectations for project outcomes and tight deadlines
- Remote work may be limited based on team collaboration needs
Who it's for
Senior • Remote
Good fit
- Senior security engineers with blockchain experience
- Professionals looking to lead security initiatives
- Ambitious individuals in fintech and security sectors
Not recommended for
- Entry-level security professionals
- Individuals without blockchain knowledge
- Those looking for a less dynamic work culture
Motivation fit
Key skills
About the job
Description
【About the Datachain initiative】
Datachain announced a project to build a global payment solutions infrastructure on 5 September 2024!
Since its inception in 2018, Datachain has been continuing R&D on technology and business opportunities with the aim of creating a ‘De-Facto infrastructure’ as a ‘Global x Deep Tech' 'from Japan'.
We aim to become a Decacorn (a start-up with an enterprise value of more than USD 10 billion), and we are often told that we need to win in Global x Deep Tech to realize this goal.
As a major first step, the announced project will start, but we have a limited amount of time to get off to a flying start with a big advantage in this area, where the world's top companies will be our competitors.
As the first penguin, we are currently rapidly expanding our recruitment in order to create a ‘De-Facto infrastructure’ as a ‘global x deep tech’ ‘from Japan’.
【Why Datachain can achieve this】
・We will develop an international remittance infrastructure using stable coins in collaboration with a communication network for financial transactions linking more than 11,000 institutions in more than 200 countries and regions worldwide, which are also used by major Japanese banks for overseas remittances.
∙ In June 2023, Japan will be the first developed country to enact legislation on blockchain stablecoins, so that Japan leads the world in this area.
・The technology Datachain has been researching and developing - blockchain-to-blockchain transmission technology - is leading the world.
【Attractiveness of the position】
The Lead Product Security Engineer needs to launch a new system to promote a new major project, and needs to create the ideal security state of the system.
Therefore, the role of the lead engineer is required to establish policies to create a high level of security in cooperation with other members of the team, both internal and external.
In terms of implementation, in addition to the usual web application infrastructure knowledge, the engineer will need to establish the management of many security level structures, including financial knowledge and blockchain specific knowledge.
【Examples of Development Environments】
- Blockchain
- Languages：Go、Rust、Solidity、Kotlin
- Network：Ethereum、BNB Chain、Cosmos等
- Server-side and back-end development
- Languages：Go
- Database：PostgreSQL（Azure Cosmos DB）
- Front-end development
- TypeScript、Next.js、wagmi、Chakra UI
- Infrastructure・SRE
- Clouds: Azure、Kubernetes
- CI/CD: GitHub Actions、Argo CD、Argo Workflows
- Monitoring: OpenTelemetry、Grafana
【Requirements】
- Experience in designing system security operations on public cloud
- Experience in web application development and understanding of architecture
- Experience in web application testing and vulnerability assessment
- Experience with ISMS and SOC2 licensing implementation and operations
- Experience in defining essential and ideal security states and transforming the organization to the target state
- Interest in blockchain
【Preferred Experiences】
- Product security experience in the FinTech space
- Experience in conducting penetration testing and threat modeling
- Experience in defining security-related standards
- Experience in promoting, designing, and operating response to incidents
- Experience in technical communication in the engineering domain
- Experience in blockchain related development
【We are looking for】
- Someone who can assess the current situation, define what the system should be in the future, and lead a team to create a good system.
- Someone who can assess the balance between business, organization, and technology, and explain how it should be from a technology standpoint.
- Someone who creates a development team culture by collaborating with engineers and tech leads throughout the company.
- Someone who proactively enhances technical capabilities to create good systems and takes the initiative to create a development environment and development organization to create good systems.
