Minato, Tokyo Management Solutions Co.,Ltd.

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 year

    Mercari 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

    1ヶ月前


    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.

    +Meikuini wa konjou shimyousya ni taisuru sabisshutsu no katsudo o sono honbu chigai sitekina deshou. · +Meikuin de hatsubai surushita Web apuri keiei e kenkaiten sarete irashaimasu. · ...

  • Systems Engineer

    2ヶ月前


    Minato, Tokyo Mercari, Inc. ¥8,000,000 - ¥12,000,000 per year

    Systems 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 year

    We 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, Shizuoka Computer Futures

    We're a fast-growing commerce tech company at the intersection of consumer experience data and AI. You'll own product vision strategy and roadmap-turning customer insight commercial priorities into high-impact outcomes This is a company-builder role leading cross-functional teams ...


  • Minato, Tokyo Mercari, Inc.

    +We are seeking a Senior Software Engineer to lead complex product and technical initiatives for our Android team. The ideal candidate will have strong expertise in Kotlin and modern Android development, as well as experience collaborating with backend/ML teams and integrating co ...


  • Minato, Tokyo Apple

    We have an opportunity for New Product Introduction Operations Program Manager (NPI OPM) in Japan with our Core Technologies team.nnThe Core Technologies NPI OPM launches products on time, with high quality, and maximum customer availability. · ...


  • 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 Mercari, Inc. ¥10,000,000 - ¥20,000,000 per year

    Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential. · Operate and Maintain shared components used by multiple teams in Mercari US, impacting overall production reliabilityDefine and Measure System Reliab ...


  • Minato, Tokyo Entegris

    We are seeking a dynamic Senior Engineer in our Materials Quality Engineering team (Supplier Quality) for our regional Japan supplier base and Japan manufacturing operations. · The role involves assessing and managing supplier risk, quality performance, and improvement to ensure ...


  • Minato, Tokyo Mercari, Inc.

    Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential. Mercari has been operating marketplaces localized in two countries, Japan and the United States, and the Crossborder team recently released a new globa ...


  • Minato, Tokyo Mercari, Inc.

    This position requires English language ability. JD is available in English only. · Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential. For more information about Mercari Group's mission, see Mercari's ...


  • Minato, Tokyo Apple

    We are looking for an experienced Korean Language Expert to localize software and related content into Korean. · You will be working in an exciting, supportive team · Interact with other localization teams at Apple · ...


  • Minato, Tokyo SiTime

    The 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 year

    The 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 SiTime

    The 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, 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, 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 ...