Eureka operates "Pairs," a dating and matchmaking app for people who are serious about finding a partner. Pairs is one of Japan's largest online dating apps, with over 27 million cumulative registrations in Japan. Since launching in Japan in 2012, Taiwan in 2013, and South Korea in 2025, it has continued to grow steadily, with over 700,000 people finding a partner through Pairs. In 2015, we joined Match Group, which operates online dating apps worldwide. To realize our mission of "creating things that people will be glad they had in their lives," we are aiming for further growth not only in Japan but globally.
Job Summary: The Platform Team aims to build a robust and scalable foundation to lead Pairs to further growth by providing infrastructure such as microservices and related components that support the development of Pairs' core features, as well as by improving application security, development productivity, and quality.
The Platform Team does not directly develop or provide features for users, but due to the nature of the role, the engineering organization can play an active role in a wide range of fields by leveraging engineering.
What You’ll Do: ・Development of microservices for general use in feature development ・Quality and development efficiency improvements in collaboration with product backend teams that focus on direct user-facing feature development ・Improvement of response performance and throughput in collaboration with the SRE team and the infrastructure layer ・Middleware updates and general-purpose infrastructure development that require a medium-to-long term (6 months or more) ・Initiatives to improve application security in collaboration with the security team
Through these efforts, you will have the opportunity to strengthen both the product and the development organization while gaining a wide range of experience as an engineer.
Basic Qualifications: Strong motivation for improving development efficiency, performance, and security
Ownership and communication skills to effectively involve stakeholders and achieve results
Eagerness to catch up on and learn about AI / Experience developing using Coding Agents
3+ years of experience in implementing, releasing, and operating commercial applications
Experience building commercial Web APIs running on Public Clouds such as AWS/Google Cloud
Experience in building and designing various testing methods
Experience in creating and operating commercial container images for web applications (e.g., dockerfile, installing necessary middleware)
Minimum knowledge of middleware commonly used in web applications, such as Nginx and MySQL
Japanese: Business level or higher / English: Conversational level or higher
Preferred Qualifications: Experience and knowledge in designing databases and applications with scalability in mind for large-scale data and access volumes
Experience in improving latency and throughput using traces and profilers
Experience in working on development flows, code quality, documentation creation, and team productivity improvement by utilizing AI development support tools
Experience leading the development and improvement of usage policies, development guidelines, and workflows to establish the use of AI development support tools in team development processes
Construction of application deployment scripts and dockerfiles in container environments
Experience and knowledge in infrastructure construction on Public Clouds such as AWS/Google Cloud
Knowledge of basic security measures and requirements for web applications
Tools we use: Programming Languages: Go, TypeScript/JavaScript, Python
Tech Stack: MySQL,DynamoDB,Redis,Elasticsearch, Kubernetes, various AWS and Google Cloud services,Terraform
Development: Git,Github,GithubActions,Docker,Jira Cloud,Slack
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