Software Engineer (AI SaaS Product)Tech Lead/Software Engineer

Position :Senior Software Engineer (SaaS Product) Salary : JPY 8,000,000 – 12,000,000 (depending on experience) Language Requirement : Business-level Japanese or English preferred Work Style : Hybrid \(2 days/month in office) ▶︎About the Company Fast-growing AI × Data technology company that develops products and solutions leveraging large-scale open data. The company owns a patented open data structuring technology and builds platforms that connect scattered information across the web to maximize the value of people, companies, and organizations. Their mission is to maximize the value of the world through the technology of AI × Data. The company operates across three major domains: ・AI-powered SaaS products ・AI/Data solutions for enterprises ・Data-driven talent and business intelligence platforms The company is led by founders with experience in Silicon Valley AI companies and is building a global-level technology organization. ▶︎Role Overview The company is looking for a Tech Lead / Senior Software Engineer to drive development of its SaaS products and core data platform. In this role, you will work closely with product managers and engineers to design and develop scalable backend systems while contributing to product architecture and technical decision-making. You will also collaborate with global development teams and help build the technical foundation for future product expansion. This position is ideal for engineers who enjoy working across system design, backend development, and product development in a fast-growing AI/Data startup. ▶︎Mission ・Develop and improve server-side applications for SaaS products ・Design scalable systems leveraging large-scale open data ・Drive architecture discussions and technical decisions ・Improve engineering productivity through CI/CD and development processes ・Collaborate with product and global engineering teams ▶︎Key Responsibilities ・Backend system design and development for SaaS products ・Design and improvement of large-scale data search infrastructure ・Product feature development and system optimization ・CI/CD pipeline setup and improvement ・Collaboration with overseas development teams ・Technical leadership and architectural discussions ▶︎Salary Annual Salary : JPY 8,000,000 – 12,000,000 (depending on experience) ・Salary will be determined based on experience and skills ・Performance-based evaluation and growth opportunities available ▶︎Qualifications *Required ・Experience in backend software development ・Experience developing web applications or SaaS products ・Experience working in team-based development environments ・Strong understanding of system architecture and software design *Preferred ・Experience with large-scale data systems or search infrastructure ・Experience with AI / Data-related services ・Experience working with global or distributed development teams ・Experience with cloud infrastructure and modern development environments ▶︎Work Environment *Location Tokyo, Japan *Engineering Culture ・Product-driven development environment ・Engineers actively involved in product planning and improvement ・Opportunity to work on AI/Data platforms using large-scale open data *Team ・Startup environment with experienced engineers ・Global mindset with international collaboration ▶︎Work Schedule Standard working hours : 10:00 – 19:00 Flexible working hours available ▶︎Holidays and Leave ・Two days off per week (Saturday & Sunday) ・National holidays ・Annual paid leave ・Year-end and New Year holidays ・Special leave (bereavement, etc.) ▶︎Allowances and Benefits ・Full social insurance coverage ・Regular health checkups ・Flexible working environment ・Learning and development support