Job Description
ワークスタイル
服装カジュアル 副業OK フレックスタイム制
募集要項
Role Summary
As a Backend Engineer, you will lead the design, development, and operation of backend systems for a product suite. You will design and build scalable, robust backend architectures and technical foundations for next-generation products utilizing AI agent technologies and large language models. We expect you to contribute to enhancing product value through collaboration with cross-functional teams.
Why You ’ ll Love This Role
- Cutting-edge voice AI technology challenges:
- Work on next-generation voice dialogue systems combining ASR/TTS/LLM technologies
- Real-time processing expertise:
- Build highly marketable expertise through designing and operating low-latency voice streaming infrastructure using WebRTC/Twilio
- Frontline of customer problem-solving:
- Engage directly with customers across diverse industries and experience the impact of solving their challenges with technology
- Socially impactful product development:
- Work on high-impact projects directly contributing to corporate productivity improvements, such as call center efficiency and sales support
- Collaboration with diverse talent:
- Grow in a stimulating environment working alongside talented members from diverse backgrounds including AI engineers, SREs, PdMs, Sales, and CS
- Balance of personal and organizational growth:
- Thrive in a dynamic field that balances individual growth with organizational development while adapting flexibly to rapid change
Responsibilities
- AI Product Development
- Design, develop, and operate backend systems for AI products
- Implement AI agent systems utilizing large language models (LLMs)
- Develop APIs for real-time speech processing and speech synthesis systems
- Build and optimize natural language processing pipelines
- System Architecture & Infrastructure
- Design distributed systems using microservices architecture
- Design and implement scalable APIs for high-traffic scenarios
- Containerization and Kubernetes operations on GCP
- Database design and query optimization for large-scale data processing
- Development Process & Quality Improvement
- Build and improve CI/CD pipelines
- Promote code reviews and test automation
- Build monitoring and log analysis systems
- Implement and operate based on security requirements
- Machine Learning & AI Integration
- Integrate and deploy machine learning models to production environments
- Build and operate MLOps pipelines
- Optimize inference API performance and reduce latency
- Develop A/B testing infrastructure and support data analysis
- Team Collaboration & Technical Leadership
- Collaborate with cross-functional teams (designers, product managers, project managers)
- Participate in technical selection and architecture decisions
- Research new technologies, build prototypes, and conduct technical validation
- Improve and automate development processes
Why You ’ ll Love This Role
- Cutting-edge voice AI technology challenges:
- Work on next-generation voice dialogue systems combining ASR/TTS/LLM technologies
- Real-time processing expertise:
- Build highly marketable expertise through designing and operating low-latency voice streaming infrastructure using WebRTC/Twilio
- Frontline of customer problem-solving:
- Engage directly with customers across diverse industries and experience the impact of solving their challenges with technology
- Socially impactful product development:
- Work on high-impact projects directly contributing to corporate productivity improvements, such as call center efficiency and sales support
- Collaboration with diverse talent:
- Grow in a stimulating environment working alongside talented members from diverse backgrounds including AI engineers, SREs, PdMs, Sales, and CS
- Balance of personal and organizational growth:
- Thrive in a dynamic field that balances individual growth with organizational development while adapting flexibly to rapid change
Work Style
Hybrid work model: 3 days in the office, 2 days remote.
応募必要条件
| 職務経験 | 6年以上 |
| キャリアレベル | 中途経験者レベル |
| 英語レベル | ビジネス会話レベル (英語使用比率: 常時英語) |
| 日本語レベル | 無し |
| 最終学歴 | 大学卒： 学士号 |
| 現在のビザ | 日本での就労許可が必要です |
スキル・資格
Minimum Qualifications
- Bachelor's degree in Computer Science, Software Engineering, Artificial Intelligence, Machine Learning, Mathematics, Physics, or related fields, or equivalent practical experience
- 5+ years of application development experience using Python
- 3+ years of experience developing complex SaaS products or high-traffic B2B products
- 3+ years of experience with cloud services (AWS, GCP, Azure) and container technologies (Docker, Kubernetes)
- Experience working at startups or growth-stage companies, or equivalent environments
- Knowledge of and passion for AI-related technologies
- Language requirements (either):
- Japanese: Fluent (able to discuss product development without misunderstandings)
- English: Business level
Preferred Qualifications
- Experience building systems utilizing natural language processing or machine learning
- Experience developing machine learning models with Python, TensorFlow, or PyTorch
- Experience with chatbot, speech recognition systems, or AI agent development
- Experience launching new businesses/products from the 0→1 phase
- Full-stack application development experience
- Bilingual (Japanese/English)
勤務地
労働条件
雇用形態 正社員
給与 700万円 ~ 1300万円
ボーナス 給与： ボーナス込み
勤務時間 10:00～19:00
休日・休暇 完全週休二日制 所定休日：土・日・祝日 休暇：年次有給休暇、夏季休暇（3日）、年末年始休暇（12月31日〜1月3日）、慶弔休暇
業種 インターネット・Webサービス
職種
会社概要
| 会社の種類 | 大手企業 (300名を超える従業員数) |
| 外国人の割合 | 外国人 半数 |
Job Tags