Intro
PROEVER is an AI-powered project management platform built in Japan and now preparing for global expansion.
We are looking for a
Tokyo-based, Japanese–English bilingual Product Engineer
to drive the large-scale renewal and technical evolution of PROEVER.
About MSOL & PROEVER
Management Solutions (MSOL) is a Japan-based consulting firm specialized in project and program management. We support enterprise projects from executives to frontline teams as a hands-on PMO partner.
PROEVER is our
project management SaaS
that:
- Centralizes project data across the organization
- Provides a
program-level, cross-project view
, not just task/issue tracking - Uses
AI
to support decision-making, risk management, and reporting for executives and PMOs
PROEVER is positioned as a
core business
in MSOL's mid-term strategy. To remove technical constraints from the initial release and prepare for further growth, we are planning a
major product renewal
and strengthening our engineering team.
Role Overview
As a
Product Engineer
, you will:
- Design and develop
web application features
for PROEVER (both new development and improvements) - Work across
frontend, backend, and database
in a modern TypeScript / + Azure stack - Help improve our
development process, automation, and engineering practices - Collaborate closely with other engineers, designers, and product members
Depending on your experience, you may also take on
team management and technical leadership
within the product team.
Key Responsibilities
- Develop and improve
web application features
for PROEVER - Collaborate on
requirements definition and prototyping
, and create technical specifications - Design and implement
frontend, backend, and database
components - Use
CI/CD
and testing practices to ensure quality and stable releases - Conduct
code reviews
and contribute to engineering standards and best practices - Improve
development workflows and automation
(e.g., CI/CD, tooling) - Work closely with
product managers, designers, and other engineers
to deliver value to enterprise customers - (Depending on experience) Support
team management and mentoring
of other engineers
Tech Environment
(Actual and planned tools/stack)
- Frontend:
TypeScript / / Tailwind CSS / shadcn/ui - Backend:
TypeScript / / (Python) - Database:
PostgreSQL / GraphQL (Hasura) - OS:
Linux - Infrastructure:
Azure / Docker - CI/CD:
GitHub Actions - Version Control:
GitHub - Project Management:
PROEVER - Design:
Figma / Storybook - Communication & Collaboration:
Slack / Notion / Google Workspace / Microsoft 365 - Others:
GitHub Copilot / GitHub Codespaces / Claude Code / Keeper
Requirements – Must-Haves
- 5+ years
of professional
web application development
experience - Knowledge of
frontend technologies
such as React and - Knowledge of
backend technologies
such as , TypeScript, or Java - Experience in
database design and administration
(MySQL, PostgreSQL, MongoDB, etc.) - Experience using
cloud services
(AWS, Azure, GCP, etc.) - Experience using
CI/CD tools
(e.g., GitHub Actions) - 3+ years
of
team management or technical leadership
experience - Strong interest in
AI / generative AI
for software development, or hands-on experience in professional or personal projects - Fluent Japanese
(business level or higher) for daily communication and documentation - Business-level English
for communication with global partners and vendors
Requirements – Nice to Have
- Experience in
Agile development - Experience with
project management tools
(Jira, Asana, etc.) - Development experience with
enterprise SaaS
products - Product development or operations experience on
Microsoft Azure - Experience with
QA, performance tuning
, and other non-functional requirements - Experience in
global development environments
(e.g., offshore development using English)
Preferred – AI Agent Experience (Strong Plus)
We especially welcome candidates with
AI agent development experience
, such as:
- Designing and implementing
AI agents
using frameworks like LangGraph, LangChain, Azure AI Foundry, etc. - Implementing
multi-step reasoning, state management, tool calling, and workflow orchestration - Using
LLMs
(Azure OpenAI, OpenAI, etc.) to build decision-making, analysis, and automation features - Designing and implementing
RAG (Retrieval-Augmented Generation)
architectures - Embedding
AI agents into products or business systems
and operating them in production - Experience with
prompt design, evaluation, guardrails, and performance tuning
for LLM-based systems
Work Style & Location
- Employment type:
Full-time, permanent employee - Location:
Tokyo Midtown Tower (Roppongi), Minato-ku, Tokyo - Work style:
Hybrid with flextime (no core time) - We expect regular on-site collaboration for releases, workshops, and team communication, so we are looking for candidates
based in Tokyo (or willing to relocate)
and within commuting distance of HQ. - Candidate must be legally eligible to work in Japan.
Why Join Us
- Build and evolve a
next-generation AI project management platform
that supports executives and PMOs - Work in a
modern tech stack
with the chance to influence architecture, tools, and engineering practices - Get deeply involved in
AI / AI agent
initiatives and bring them into a real enterprise product - Join a company that invests heavily in
learning, training, and professional development
, with a strong focus on health, diversity, and work–life balance
-
Minato, Tokyo Management Solutions Co.,Ltd.We are looking for a Tokyo-based, Japanese–English bilingual Product Engineer to drive the large-scale renewal and technical evolution of PROEVER. · 5+ years of professional web application development experience · Knowledge of frontend technologies such as React and · Knowledge ...
-
Minato, Tokyo Mercari, Inc. ¥80,000 - ¥160,000 per yearMercari is looking for a security engineer to join our Product Security Team in Tokyo. The team ensures that Mercari products meet security requirements and investigates, tracks, and assists in fixing security issues. · ...
-
Product Designer
3週間前
Minato, Tokyo Management Solutions Co.,Ltd.We are looking for a Tokyo-based Japanese–English bilingual Product Designer (UI/UX) to help define the next-generation experience of PROEVER. · ...
-
Minato, Tokyo Mercari, Inc. ¥1,500,000 - ¥3,000,000 per yearソフトウェアエンジニア、バックエンドの開発が求められます。メルペイを代表する金融プロダクトを作り出し、お客さまからのリアルな反応を見ることができます。 · ...
-
Systems Engineer
1ヶ月前
Minato, Tokyo Mercari, Inc. ¥8,000,000 - ¥12,000,000 per yearSystems Engineerのポジションにつきます。日本語能力が求められ、JDは日本語のみで提供されます。 · ...
-
Minato, Tokyo Mercari, Inc. ¥8,000,000 - ¥15,000,000 per yearWe are looking for a Software Engineer, Machine Learning to join our team in Mercari. The successful candidate will be responsible for leading the end-to-end ML model lifecycle, designing and developing ML pipelines, and implementing scalable inference services. · Strong hands-on ...
-
Minato, Tokyo Mercari, Inc.We are looking for a skilled iOS engineer to join our team and help us build high-quality features using Swift and modern iOS frameworks. · As an iOS engineer, you will work on building features with our machine learning, backend, and infrastructure members as well as collaborati ...
-
Minato, Tokyo SiTimeThe Snr Analog Mixed-Signal Design Engineer contributes to building precision timing circuits leveraging SiTime's industry-leading MEMS technology. · ...
-
Minato, Tokyo SiTime $100,000 - $150,000 per yearThe Principal Analog Mixed-Signal Design Engineer contributes to building precision timing circuits, leveraging SiTime's industry-leading MEMS technology. · Design analog and mixed-signal circuits meeting architectural requirements and technical specifications · Contribute to the ...
-
Minato, Tokyo SiTimeThe Senior Principal Analog Mixed-Signal Design Engineer contributes to building precision timing circuits, leveraging SiTime's industry-leading MEMS technology. · Contribute to the architectural definition of the design and chip integration · Technical leader for chip level desi ...
-
Minato, Shizuoka Treasure Data ¥2,500,000 - ¥6,000,000 per yearWe are looking for an experienced software engineer to join our core service group to enhance and maintain the workflow component. You will be working on a key orchestration component in the workflow team. · Designing, building, scaling and maintaining the core services that powe ...
-
Minato, Tokyo Mercari, Inc.We believe that by circulating all forms of value we can create opportunities for anyone to realize their dreams and contribute to society and the people around them. · We are looking for a Software Engineer Backend who will lead the development of complex backend features and se ...
-
Minato, Tokyo Mercari, Inc.Mercari is looking for a Platform Security Engineer to improve the resilience of our platform. · ...
-
Minato, Shizuoka Treasure Data ¥4,000,000 - ¥6,000,000 per yearTreasure Data builds a Programmable Platform to efficiently enable and scale Customer-centric Data Platform applications across varied verticals from automotive to finance. We are looking for an experienced software engineer with expertise in frontend development full stack devel ...
-
Senior Product Designer
19時間前
Minato, Tokyo Mercari, Inc.This role plays a critical part in shaping how buyers experience Mercari at scale. As the marketplace evolves, we're entering new problem spaces where clarity, trust, and experience quality matter more than ever. · Own the end-to-end design for buyer-facing experiences, from disc ...
-
Minato, Tokyo SiTimeThe Sr. Layout Design Engineer will lead top-level chip-planning and perform block-level custom layouts for CMOS and BiCMOS circuits. · ...
-
Product Manager
2週間前
Minato, Tokyo Xinobi AI· This role will drive GTM readiness for product launch targeted for ~2025 across Japan Korea and U.S. · Own the product vision strategy and roadmap for Personal AI · Conduct market user research to identify problems define requirements · Perform competitive opportunity analyses ...
-
Product Manager
2ヶ月前
Minato, Tokyo Xinobi AI ¥15,000,000 - ¥25,000,000 per yearProduct launch targeted for across Japan, Korea, and the U.S. This role will drive GTM readiness for these markets. · Own the product vision, strategy, and roadmap for Personal AI · Conduct market and user research to identify problems and define requirements · Perform competitiv ...
-
Minato, Tokyo Mercari, Inc. ¥2,400,000 - ¥2,800,000 per yearThis role will be responsible for integrating data from different sources to BigQuery and managing existing batch and streaming data pipelines. · Design, develop, and maintain data ingestion pipelines for a high-volume data processing system. · Develop and maintain streaming data ...
-
Minato, Shizuoka Treasure Data ¥100,000 - ¥200,000 per yearWe are thrilled that Forrester has recognized Treasure Data as a Leader in The Forrester Wave: Customer Data Platforms For B2C. It's an honor to be acknowledged for our efforts in advancing the CDP industry with cutting-edge AI and real-time capabilities. · We develop & run the s ...
-
Minato, Tokyo Mercari, Inc.Mercari Engineering Principles are a shared understanding that serves as the foundation of engineering beliefs and behavior at Mercari. The Engineering Principles are designed to complement the organizational identity (Mercari's mission, values, and culture) from an engineering v ...