Minimum of 3 years of professional software development experience with a significant focus on Golang.

Experiences in:

• 2–3 years of experience, capable of working independently with a strong self-testing mindset.

• Proficient in SQL & NoSQL, with solid understanding of data modeling and optimization.

• Good knowledge of AWS, able to deploy and operate common cloud services.

• Experience writing Unit Tests and Integration Tests; understanding of TDD is a plus.

• Strong problem-solving skills, including the ability to debug and analyze logs effectively.

• Solid understanding of API/microservice security and performance best practices.

• Strong grasp of SOLID principles, DRY, and ability to apply appropriate design patterns.

• Proficient with Git, familiar with Git Flow and collaborative development workflows.

• Experience working with microservice architecture and inter-service communication (REST, message queues).

• Solid understanding of software design patterns (e.g., Repository, Factory, Strategy) and architectural patterns such as Layered Architecture, Clean Architecture, Hexagonal, and Event-driven Architecture to build scalable and maintainable systems.

• Interest in and awareness of Generative AI trends, with working knowledge of tools like Cursor, Windsurf, Lovable, and concepts such as Prompt Engineering and Context Engineering to enhance productivity.

• Hands-on experience with Golang in production systems, with understanding of Go idioms, standard library, concurrency model (goroutines, channels), and project structuring best practices.

あれば尚可：

• Have knowledge in Microservice architecture.

• Good knowledge working with systems or working CI/CD tools such as Jenkins, Docker.

• Experience working with common third-party APIs (LINE, Stripe … ) is a plus.

• Experience with some service of aws, gcp, azure ..

• Experience with multiple database types such as Redis, MongoDB, ElasticSearch, etc.