Job Responsibility

Our company operates various service platforms for cryptocurrencies (virtual currencies), including a cryptocurrency exchange. Within the Cybersecurity Department, we are responsible for security measures from a technical standpoint for our production environment, corporate environment, and against financial crimes. For this position, you will be responsible for the following tasks:

• White-box vulnerability assessments for web applications
• Design review from a security perspective and security improvement consulting
• Promoting secure-by-design principles
• Driving shift-left initiatives

Required Skills

• Knowledge of common vulnerability types in web applications (e.g., SQL Injection, Cross-Site Scripting)
• Experience in white-box vulnerability assessments
• Experience using or reading object-oriented programming languages
• Business-level proficiency in Japanese

Nice-to-have Skills

• Knowledge of various web frameworks such as ASP.NET Web Forms, .NET Core, etc.
• Strong communication skills to facilitate smooth collaboration with external organizations
• Work experience in cybersecurity at a financial institution
• Experience participating in security camps, security-related study sessions, or CTF (Capture The Flag) events
• Experience reporting vulnerability information to organizations such as IPA or CISA

Ideal Traits

A Responsible Team of Professionals bitFlyer handles customer assets totaling over 900 billion yen across its three bases (Japan, US, and EU) and supports the trading of these assets (as of March 2024). Developing reliable systems in a rapidly changing market is challenging, but it is also a role filled with responsibility and reward.

We strive to be a professional team committed to this significant responsibility. Let’s shape the next era of finance together.

We are looking for individuals who:

• Possess a high level of ethics
• Identify with bitFlyer’s mission and values
• Are passionate, sincere, and proactive
• Can adapt flexibly and quickly to change
• Can communicate logically
• Excel in problem identification, problem-solving, and execution

Compensation

8,000,000 – 13,000,000 yen

Job Location

・Head Office in Tokyo (Midtown Tower 30F, 9-7-1 Akasaka, Minato-ku, Tokyo) 　Direct access from Roppongi Station 　3-min walk from Nogizaka Station 　10-min walk from Roppongi-itchome Station ・Work In the Office is currently recommended

Allowances・Benefits

・Commutation Allowance ・Social insurances (health insurance, welfare annuity insurance, employment insurance, industrial accident compensation insurance) ・Book purchase support ・Free drinks, snacks, noodles, cut fruits, and Office massage

Holidays

・Saturdays, Sundays, Japanese public holidays ・Annual leaves ・Year-end and New Year holiday ・Congratulatory and condolence leave, maternity leave, childcare leave, birthday leave, etc.

Diversity

English version under preparation.

Office Environment

English version under preparation.

About bitFlyer

English version under preparation.