Lead backend-focused development of Akerun Digital ID, a multi-tenant SaaS. Define requirements, design and implement web applications, select technologies, and maintain the service.
Photosynth, listed on the Tokyo Stock Exchange Growth market, develops Akerun, a cloud access-control system built around retrofit smart locks. Administrators issue digital keys, set entry permissions and review entry records online, and the system connects with attendance and other business systems through APIs. The company's site says more than 10,000 companies have adopted Akerun.
Beyond Akerun, Photosynth offers a school app with digital student IDs, a QR-code reception system, the Migakun facility-operations service that uses gig workers, and the fixU cloud service for unmanned shops and coworking spaces. It is headquartered in Tokyo's Minato ward, with offices in Osaka and Fukuoka.
- Salary range
- ¥4M – ¥15M
- Median
- ¥6M – ¥10M
- Remote or hybrid
- 100%
- Most requested
- Go 8
- JavaScript 8
- MySQL 7
- React 7
- Ruby 7
- AWS 6
- Japanese posting, level unstated 19
- Common areas
- Backend engineering 6
- Frontend engineering 6
- Product management 5
- Business development 4
Measured from the 19 listings Ranked has live for Photosynth. Japanese level, visa signal and skills are AI-graded from each posting and can be wrong — confirm against the employer's original posting before applying.
19
open positions at Photosynth
3
Lead Akerun access-control product development, covering enterprise presales, requirements definition, hardware/software coordination, supply, support, and quality improvement.
Lead new-market enterprise sales for Akerun, developing industry strategies, winning executive-level deals, and turning successful approaches into repeatable sales playbooks. Remote work is negotiable.
Design Akerun smart-lock enclosures and mechanisms with 3D/2D CAD, supporting prototyping, evaluation, mass production, quality management, failure analysis, and product improvements.
Develop SaaS web applications for IoT access-control and keyless-rental services, focusing on backend design, operation, and performance. Remote work is available.
Develop Akerun’s web application across backend and frontend, building APIs, React/TypeScript UI, databases and cloud infrastructure. Remote work is available.
Lead Migakun’s product lifecycle from market and customer research through service planning, development coordination, launch, GTM, and KPI-driven improvement.
Lead Migakun business development through market and customer research, service and business-model planning, GTM execution, product requirements, launch coordination, and KPI-led improvement.
Sales role spanning field, partner, enterprise, and sales planning, covering customer development, proposals, account expansion, KPI management, and data analysis.
Develop Akerun Web’s IoT platform, linking locks and gateways to cloud services. Build Ruby on Rails APIs, research protocols, and support operations. Remote work with weekly office attendance.
Build and operate cloud infrastructure for Akerun Access Intelligence, automate systems with CI/CD, improve reliability and performance, and respond to incidents and technical issues.
Leads QA for IoT/SaaS products across embedded, web and mobile software, planning and running tests, analyzing results, reporting defects, and improving automation with development teams.
Manage the Akerun smartphone app as PdM/PjM: set roadmaps and requirements, coordinate delivery, and lead data-based UX improvements. Remote work is available.
Develop and operate firmware for Akerun and new IoT products, including BLE communications, device drivers, and production systems. Remote work is available with one office day weekly.
Develop the MAT consumer smart-lock web application across Go backend APIs, React and TypeScript frontend features, relational databases, and data and authentication integration with Akerun.
Build relationships with reseller partners, generate Akerun referrals, propose IoT/SaaS solutions, and close contracts, while improving partner operations and progressing toward leadership.
Guide Akerun’s mobile app from feature prioritization and specification through development, using customer requests, product metrics and app/BLE data to shape its roadmap and improve user experience.
Manage Migakun accounts through solution proposals, customer coordination, and on-site operational improvements, translating feedback from clients and workers into service and product changes.
Supports Migakun customers by coordinating service operations, identifying on-site issues, aligning clients and workers, and turning customer feedback into workflow and product improvements.
