8,284 Tokyo jobs
Open tech roles based in Tokyo.
Performance - Director
Leads client engagements in operational improvement and business growth, driving revenue and cost savings for global clients in a hybrid consulting role.
Risk Advisory Economics Consulting - Director
Directs economic analysis for high-profile cases, using Stata/R/Python/SAS to model data and write reports for courts and regulators in Japan and globally.
Risk Advisory Economics Consulting - Senior Vice President
Senior economist applies advanced quantitative analysis to high-stakes antitrust and litigation cases, using Stata/R/Python and writing clear reports for courts and regulators.
Senior LLM Data Engineer (Training Data & Evaluation)
Design and build LLM training and evaluation data end to end for Recho's voice AI agents: cleansing and structuring real call logs and client business data, generating SFT/RL and synthetic data, and maintaining evaluation sets, benchmarks and a reproducible data flywheel. Python-based data engineering (pandas, Spark, SQL, ETL) with LLM APIs; Tokyo hybrid, English team with Japanese required.
Senior LLM Training Engineer (Post-training)
Senior engineer owning LLM post-training for Recho's voice AI agents: design and run SFT, preference optimization and online RL, including reward design, training-data quality and in-house evaluation. Stack: Python, PyTorch, verl/OpenRLHF/TRL, vLLM/SGLang, FSDP/DeepSpeed. Tokyo hybrid, English-speaking team.
Senior Speech AI Engineer (Speech Synthesis / TTS)
Senior engineer who improves the quality of the voice behind Recho's phone-based AI customer-support agents: training state-of-the-art TTS models (PyTorch, LLM-based TTS, audio codecs, flow matching, diffusion), owning speech data strategy and evaluation, and partnering on latency — with a path to leading the speech team.
Forward Deployed Engineer（AI Agent）
Forward Deployed Engineer building and tuning Recho's in-house voice AI Agents in enterprise contact centers: designing agent behavior and prompts, integrating with client CRM/CTI systems in real time, implementing post-call workflows, and monitoring production, while feeding learnings back into the product platform. Stack: TypeScript, Python, AWS (ECS, API Gateway, DynamoDB).
IT Support Team Lead
Leads and manages the IT Support team at Kuoni Tumlare, a travel destination-management company, in Tokyo. Day to day this means staff management and workload allocation, monitoring SLAs, escalating and coordinating major incidents, and providing technical guidance across Windows, Microsoft 365, Entra ID/Active Directory, Intune and Citrix.
【事業開発部門】UI/UXデザイナー
UI/UX designer in KMS's business development division, designing screens and improving UI for web apps and AI chat/RAG apps built on Microsoft Foundry, Azure, and Power Platform. Also creates proposal/sales materials and improves in-house products (e.g., DAIVERSE), working closely with engineers and PMs in Figma.
COSショップスタッフ（販売 _ Full time） - Aoyama 店
職務内容 東京・青山店の素晴らしいチームの一員として、一緒に成長できるセールスアドバイザーを募集します。 この職種はフルタイム（週40時間）での勤務が可能で、週末や夜間のシフトが含まれます。 主な業務内容： お客様対応およびショッピング体験の向上 レジ業務およびフィッティングルームでのサポート 店内での販売および在庫管理 新商品のディスプレイやビジュアルマーチャンダイジング 求める人物像…
COS フルタイム販売スタッ - Aoyama 店
職務内容 東京・青山店の素晴らしいチームの一員として、一緒に成長できるセールスアドバイザーを募集します。 この職種はフルタイム（週40時間）での勤務が可能で、週末や夜間のシフトが含まれます。 主な業務内容： お客様対応およびショッピング体験の向上 レジ業務およびフィッティングルームでのサポート 店内での販売および在庫管理 新商品のディスプレイやビジュアルマーチャンダイジング 求める人物像…
Copy of COSショップスタッフ（販売 _ Full time） - Aoyama 店
職務内容 東京・青山店の素晴らしいチームの一員として、一緒に成長できるセールスアドバイザーを募集します。 この職種はフルタイム（週40時間）での勤務が可能で、週末や夜間のシフトが含まれます。 主な業務内容： お客様対応およびショッピング体験の向上 レジ業務およびフィッティングルームでのサポート 店内での販売および在庫管理 新商品のディスプレイやビジュアルマーチャンダイジング 求める人物像…
Bilingual SOC Analyst- Onsite Japan(JLPT Mandatory)
Role Details Job Type: Fulltime, Permanent Role Name: Bilingual SOC Analyst Mandatory : JLPT N2 or above Client : MNC Experience Required: 3+ years Work Location: Onsite - Tokyo, Japan (Onboarding will happen in…
Digital Experience Manager (Japan)
You, as a Digital Experience Manager, will serve as the expert in optimizing the customer experience across all online channels in Japan. You will be responsible for mapping the customer journey based on the commercial…