Development orchestration from Notion tasks to implementation and PRs.
New Codens — our product. -80% dev lead time
Software, shipped by
AI-Native Offshore Development
Software, shipped by
AI-native teams.
Corevice pairs fractional CTOs in Japan with AI-native squads in Indonesia to help companies build software that lasts.
Osaka, Japan Jakarta, Indonesia Bandung, Indonesia
Flagship Product
Cut development lead time by 80% with Codens.
Our own AI development automation suite — five products that work together to automate planning, implementation, testing, repair, and analytics. Built and battle-tested inside Corevice every day.
-80%
Lead time
-90%
Bug recurrence
-70%
Dev effort
+5x
Shipping speed
Turns business requests into structured PRDs, synced with Notion.
Detects errors and auto-creates fix PRs within 3 minutes (92% success).
QA automation: test generation, E2E, and AI bug analysis.
Automated PR review and security audits.
Services
Two practices, one engineering mind.
Advisory work that supports decisions, and squad work that ships implementation — both run on the same design principles.
IT Advisory Pro
We back products and DX without a CTO as a partner in technical decision-making — from architecture choices to hiring criteria and vendor evaluation, bridging management and the field.
- Weekly tech reviews and a decision log
- Co-designing interviews and evaluation criteria
- Auditing the existing codebase with improvement proposals
AI Offshore Development
We form AI-native engineers into squads of 2–8 with a resident Japanese-speaking bridge, delivering end-to-end from design through implementation and operation.
- Hours synced to JST keep meetings minimal
- LLM-first coding, review, and spec wrangling
- Documentation built for handover
Why Corevice
Why Indonesia × AI
This is not just low-cost outsourcing. We connect a location with the right timezone, language, and AI skills directly to your business in Japan.
Timezone
JST −2h
Overlaps with Japanese business hours, so synchronous communication just works.
Language
JP / EN
A Japanese-speaking bridge on the team; documentation is bilingual by default.
Cost
45% of domestic
Pricing is set transparently by role and seniority. No hidden line items.
AI-Native
Claude / Codex
Every engineer uses LLMs in coding and review every day.
Selected Work
Our work
A selection of the engagements with the biggest business impact. Contact us for details.
AI Voice
AI Phone System
Automated Reception & Sales Handling
AI handles everything from reception to automated sales calls end to end. A highly available, fault-tolerant PBX server ensures stable, around-the-clock operation.
- AI Voice
- Python
- Asterisk
- GPT-4
Automation
Automated Form-Based Outreach
High Success Rates Powered by AI Analysis
A system that automatically submits messages to inquiry forms. AI-driven company analysis generates the optimal message, delivering low cost per send and a high success rate.
- Automation
- Python
- Playwright
- AI
OCR & Data Processing
Government Document OCR Service
Large-Scale Document Digitization
Digitizes paper documents for government agencies with high accuracy. Large-scale parallel processing on AWS Batch can handle even millions of documents in a short time.
- OCR
- AWS
- Next.js
- Textract
Integration Platform
iPaaS System
No-Code Integration Platform
Connects with over 100 services including Google, Slack, and Salesforce. Build workflows with no code, and automate browser operations with its WebRPA capability.
- Integration
- iPaaS
- AWS
- React
AI Meeting
Meeting Recording System
Real-Time Transcription
Recording, transcription, and translation of meetings in one stop. Enables efficient information sharing across teams and automates meeting-minute creation.
- AI Meeting
- WebRTC
- Whisper
- Real-time
Developer Productivity
AI Automated Code Fixing Service
Reinventing the Development Process
AI analyzes code and automatically suggests everything from bug fixes to refactoring. A next-generation development support tool that dramatically boosts developer productivity.
- Developer Productivity
- Claude
- Python
- Next.js
Team
Members
Engineers and advisors placed across our three locations — Osaka, Jakarta, and Bandung.
川添 貴之
Takayuki Kawazoe
CEO / Founder Osaka, Japan
Brings over 10 years of software development experience, working with Python, TypeScript, Go, and Rust, and building infrastructure on AWS and GCP. Having led a team of more than 20 people as CTO, he founded Corevice. As an advocate for AI-driven development methods, he runs an offshore development service that bridges Japan and Indonesia.
Sayyid Shalahuddin
General Manager Jakarta, Indonesia
A specialist in mobile development with Flutter and React Native and in Node.js backends. Brings extensive experience in SDK development and team management. Based in Indonesia, he delivers high-quality development services for Japanese companies.
Daffa Alberta Votary
Designer Jakarta, Indonesia
Brings 5 years of UI/UX design experience, with a track record of ranking in the top 3% on Freelancer.com. Delivers user-centered design using Figma and Adobe XD, with experience across a wide range of industries including B2B SaaS, Fintech, and Healthcare.
Yusup Supriyadi
Developer Bandung, Indonesia
Brings over 4 years of full-stack development experience, working with React, Next.js, Flutter, and FastAPI, and specializing in AI/LLM integration projects. Also has extensive experience with RAG, fine-tuning, and prompt engineering.
Start something you can be proud of.
Initial calls are free. We reply within five business days with a scoped proposal.