Join a global marketing technology company as a Tech Lead / Backend Engineer and play a central role in developing cutting-edge Voice AI solutions. You will design backend architecture, lead development initiatives, mentor team members, and support customers through technical discussions. This role offers the opportunity to shape an evolving speech product in a fast-paced, innovation-driven environment.
Design technology strategy and backend system architecture for the speech product
Lead the development of voice AI solutions from concept to delivery
Drive team leadership, mentoring, and organizational contributions
Manage system integration and API integration for large-scale projects
Support customer discussions, address technical challenges, and promote project delivery
3+ years of Python application development
Experience in a startup, growth-phase company, or similar fast-paced environment
3+ years of cloud services experience (GCP preferred; AWS/Azure also acceptable)
Hands-on experience with container technologies (Docker, Kubernetes)
Knowledge of or strong interest in AI-related technologies
Experience launching new products or businesses (nice to have)
Strong communication and teamwork abilities
Ability to collaborate across engineering and non-technical teams
Japanese: Business-level or higher
English: Fluent
Experience building chatbots, voice recognition systems, or AI agents
Full-stack development experience (TypeScript/React)
Experience launching products from 0→1 phase
This multinational marketing technology company leverages global expertise to deliver innovative digital solutions. With a strong focus on new technology adoption and agile engineering culture, the organization empowers teams to create impactful products used across international markets.
Fast decision-making environment with flexibility to introduce new technologies
Employee stock ownership program and competitive benefits package
Flexible working hours, hybrid/remote options, and minimal overtime
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