We are hiring a Backend Engineer for our in-house SaaS product DECA, which delivers AI solutions in the marketing and advertising domain.
This role offers the opportunity to work on cutting-edge AI-powered marketing solutions in an environment that values innovation and continuous learning—enabling you to grow rapidly and make a meaningful impact.
In this role, you will develop strong skills in designing and implementing scalable systems that support the growth of a SaaS product. You’ll gain experience in building backend systems that integrate smoothly with other platforms and frontend components, while also honing your database skills to ensure both performance and maintainability. Additionally, you’ll build expertise in secure system design and enhance your teamwork and communication abilities through close collaboration with multiple departments.
What makes this position particularly attractive is that it places you at the core of our in-house SaaS backend infrastructure. You’ll be involved across the full lifecycle of product development—from initial design to continuous improvement. The role offers a high degree of ownership, allowing you to contribute to technology selection and propose impactful enhancements. You’ll be working with a modern tech stack in a culture that emphasizes learning and growth, alongside a small, agile, and high-performing team that moves quickly.
Responsibilities
- Design and implement scalable backend systems and services
- Design and maintain RESTful APIs that support application functionality
- Optimize performance through effective database design and query optimization
- Implement robust security measures and data protection protocols
- Develop clean, maintainable, and reliable code
- Collaborate with multiple departments to drive integration and overall product quality
Requirements
- Backend development experience using Python and Node.js
- Knowledge of database design, operations, and performance tuning
- Experience building and operating systems in cloud environments such as AWS, GCP, or Azure
- Business-level proficiency in Japanese (for client communication)
Compensation
7 to 10 million JPY annually.
