We are a cyber security company from Japan. Our main service, Spider AF (https://spideraf.com/), an anti ad-fraud tool, has been certified by the anti-fraud division of the Trustworthy Accountability Group (TAG), the world's highest level certification organization that enhances trust in the digital advertising industry. () has been certified by the fraud prevention division of the Trustworthy Accountability Group (TAG), the world's highest level certification organization that increases trust in the digital advertising industry, and provides more reliable and world-class anti-fraud measures. With the vision of "Building a Safer and Happier future with Automation", we will continue to provide our customers with various Wow! We have a development base in Tokyo and Portugal, and a multinational workforce!

「Building a Safer and Happier future with Automation」（自動化で幸せで安全な未来を築く）

We’re looking for an enthusiastic software engineer who is passionate about design, development and testing of software that creates value for businesses worldwide. Our main product, Spider AF , is a marketing analytics dashboard that simplifies how businesses fight ad fraud and improve their ROAS. You will have a key role in improving our web dashboard by creating new functionalities or expanding previously existing ones in a reliable and maintainable way. These can range from backend responsibilities such as data preparation and processing to frontend client-focused data visualization and user interaction. Work details: ◆ Collaborate with engineering teams to continue expanding and improving our dashboard in terms of both features and software quality. ◆ Collaborate with engineering and customer success teams to investigate and resolve maintenance issues and integrate client feedback into our product. ◆ Create new data structures and data processing workflows to support novel concepts according to business requirements. ◆ Create web-based data access and editing workflows (CRUDS) from planning backend data flow to visually enabling such actions to users. ◆ Create more complex data visualizations such as graphs and complex tables. ◆ Contribute in other areas such as big data processing, ML models deployment, CI/CD and/or infrastructure related operations

Skill ◆ 5-7 years of experience developing software with at least 3 years in web development with a framework using an MVC design pattern (e.g. Rails/Ruby, Phoenix/Elixir). ◆ Experience with frontend technologies (e.g. HTML, CSS, LESS, etc), libraries (e.g. Bootstrap, Foundation, etc) and frameworks (e.g. VueJs, React, Angular, etc). ◆ Desire to employ/learn the best software development practices to create readable, testable and maintainable software. ◆ Conscious of potential security, scalability and maintainability issues while developing software so that these can be proactively prevented. ◆ Understanding of technical constraints, development time and ability to adjust the approach accordingly. ◆ Desire to work in a respectful, transparent, and collaborative work environment, following our company values, culture and ways of working Nice to have ◆ Previous experience working with Elixir/Phoenix ◆ Previous experience in startup environments ◆ Fraud detection experience ◆ Online and mobile advertisement knowledge