SDKエンジニア (iOS or Android)

5,000,000 JPY - 7,000,000 JPY per year
ビジネスレベル(TOEIC 860)



One of leading cyber security company is looking for a SDK engineer (iOS or Android).


Their engineering team is developing reliable real-time risk-based authentication engine, FraudAlert, and deep analysis that utilizes internal and external data to provide valuable insights to our enterprise clients. We believe everyone should have access to secure online financial services. Your high-quality delivery is vital to our mission. We are looking for an experienced engineer who is

- Interested in the latest cybersecurity challenges and solutions or big data.

- A team player in an English and Japanese speaking environment.

- Fond of flexible and challenging startup environment.


【Job Responsibilities】

- Build and continuously improve mobile SDKs that connected to our FraudAlert analysis engine for our enterprise clients.

- Support multiple iOS and Android SDK versions for our clients

- Write quality codes and test cases that fit the business logic.

- Communicate with customer success team and FraudAlert engine team to find out good designs and plan for solutions and priorities.

- Optimize the resources and performance of the SDK.

- Be a team player. Take actions to help other members in the team.


【会社概要 | Company Details】
Our client is the cyber security company that provides a fraud alert solution. It can detect fraud and identify theft based on users' online behavior. The company developed their own risk detection engine, which can protect users from malicious access. The company is listed as Next top 100 Unicorn companies recognized by Nihon Keizai Shinbun.

【就業時間 | Working Hours】
10:00 - 19:00(Mon - Fri)
Flexible working hours

【休日休暇 | Holidays】
Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, Other Special Holidays

【待遇・福利厚生 | Services / Benefits】
Social insurance, Transportation Fee, Defined contribution pension system, training programsNo smoking indoors allowed (Designated smoking area), etc.


【社内の雰囲気】 社員数30名前後と規模はまだ小さいですが、開発エンジニア20名強の体制です。夏にはアメリカの大学から多数のインターンを受け入れるなど、オフィスには英語と日本語が常に飛び交っています。



- Experience in native application development in Object-C (iOS) or Java (Android) and SDK development.

- Familiar with Python is a plus.

- Is able to construct unit testing and integration testing between different mobile devices and the server.

- Knowledge of data structures and algorithms.

- Familiar with mobile resource optimization techniques.

- Familiar with version control and continuous integration.