What's In It For You
Build a first‑of‑its‑kind platform in Japan: Work on a greenfield PaaS platform that is reshaping how independent professionals work—rare ownership and impact at an ecosystem level.
High‑leverage technical role : You will be a critical engineering hire, with direct influence over architecture, product direction, and the future scale of the business.
Work at the frontier of agentic AI: Partner with AI research teams to build real, production‑grade autonomous agent systems—not POCs or experimental models.
End‑to‑end product ownership: You'll speak directly with stakeholders, run discovery, own delivery, and see immediate impact—no external client constraints.
Startup energy inside an enterprise backbone: Enjoy autonomy, speed, and experimentation while benefiting from the stability of a large professional services organization.
Flexible engagement model: Choose between contract or permanent arrangements, depending on what best fits your goals.
Meaningful societal impact: Your work directly supports Japan's evolving independent workforce and contributes to a more flexible, modern labor ecosystem.
Project Overview:
We're looking for a Product Engineer to help architect and build the core platform of a professional services business. You'll work across cloud services, system integrations, data engineering, and AI‑driven experience design. This role is essential to shaping the foundation of a new platform and delivering end‑to‑end product experiences that delight users. Your involvement in the project will be carried out as an independent subcontractor.
Project Information:
Company: EY Strategy and Consulting, Co. Ltd.
Address: Hibiya Mitsui Tower, Tokyo Midtown Hibiya, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo Japan
Work location: Within 23 wards of Tokyo
Contract type: Service entrust contract (業務委託)
Salary: 12,000-17,000 JPY/hr
Scope of service
Contract type: Project-based contract.
Build and scale core components of our Platform‑as‑a‑Service (PaaS).
Develop robust applications that connect contractors and clients seamlessly.
Design system integrations across modern and legacy tools.
Collaborate with AI research teams to build agentic, autonomous services.
Lead rapid prototyping and create internal tools with Power Platform or custom code.
Own the product lifecycle from stakeholder discovery to delivery.
Implement CI/CD automation, testing, and secure operational practices.
Qualifications and requirements:
Hands‑on experience building on Azure or comparable cloud platforms.
Proficiency in modern front‑end or full‑stack frameworks (React, Angular, Vue, , Python, .NET).
Strong understanding of APIs, systems integration, and scalable data architecture.
Ability to prototype quickly and iterate based on stakeholder feedback.
A customer‑centric mindset and passion for building high‑quality product experiences.
Adaptability and comfort working in a transforming, startup‑like environment.
English fluency; conversational Japanese.
Language Requirements:
Japanese: Native level.
English: Fluent level in reading, writing, and speaking.
Working Conditions:
The team primarily works in the office, and you will have autonomy on your own schedule and outcomes.
Next Steps:
Screening by EY Interim Professionals Talent & Tech Teams.
EY Compliance and Independence Check.
Client Introduction.
Who We Are:
We are Interim Professionals, and we are shaping the future with confidence by building Japan's community of 11 million lifelong learners. Our independent contractors are a part of our team, and our mission is to help you unlock your potential.
By giving you access to EY's best-in-class learning & development, paired with high touch consultancy projects that you will not see anywhere else, we open avenues for you to upskill and join our community to build the workforce of the future in Japan.
For inquiries please contact: and
Equal Employment Opportunity Information
EY is strongly committed to equal opportunity and values the diversity of our work force and the knowledge of our people.
-
Japan TE Connectivity製品開発の一環として弊社製品が世の中に出る前の段階(試作品や量産開始前)における評価、あるいは既存製品が新規アプリケーションに採用される際に必要な評価を担当して頂きます。 · ...
-
Tokyo Interim ProfessionalsBuild a first-of-its-kind platform in Japan: Work on a greenfield PaaS platform that is reshaping how independent professionals work—rare ownership and impact at an ecosystem level. ...
-
JP - - Tokyo Schneider Electric ￥900,000 - ￥1,200,000 per yearWe currently have a great opportunity for the right person to join our team as BMS/EPMS Applications Engineer. · ...
-
Adachi Interim Professionals Freelance￥12,000 - ￥17,000We are looking for a Product Engineer to help architect and build the core platform of a professional services business. · ...
-
Tokyo NexperiaIn this role, you will collaborate with colleagues and partners to enhance and expedite the Business Group MOS design pipelines across Japan. · ...
-
JP-Tokyo Schneider ElectricJob summary · Do you dream of working in a company that is driven by a meaningful purpose and that continuously creates an inclusive environment where you are empowered to do your best and be innovative? · We are looking for people with the right mix of talent and agile - with pr ...
-
Japan Schneider Electric ￥4,000,000 - ￥8,000,000 per yearWe are looking for a presales person to provide technical support to our industrial customers in their digitalization of their business with our products. · ...
-
Japan Schneider Electric ￥10,000,000 - ￥15,000,000 per yearWe are looking for a presales person to provide technical support to our industrial customers in their digitalization of their business with our products. · As pre-sales, PAE provides technical support to the industry in general. · Solution-oriented approach using not only hardwa ...
-
Japan Schneider Electric ￥1,200,000 - ￥2,100,000 per yearWe are looking for a presales person to provide technical support to our industrial customers in their digitalization of their business with our products. · We are looking for people with the right mix of talent and agile - with proven self-professional technical skills, strong a ...
-
Greater Tokyo Area Gates CorporationGates is a leading manufacturer of application-specific fluid power and power transmission solutions. · ...
-
Application Engineer
2ヶ月前
Tokyo Rakuten ￥4,000,000 - ￥5,000,000 per yearWe are seeking highly skilled Application Engineers with expertise in Java development, SAP to build and integrate application platforms for internal business use. You will understand business requirements and translate them into new, effective, and operational IT plans. · Develo ...
-
Application Engineer
11時間前
Tokyo Prefecture, Japan Applied IntuitionWe are looking for bright software engineers interested in extending and adapting our products for Applied Intuition's global customers. · Bachelors or Masters degree in mechanical engineer, computer engineering, automotive engineering, or equivalent · Internship experience; full ...
-
Application Engineer
1週間前
Tokyo Prefecture, Japan Applied IntuitionWe are looking for bright software engineers interested in extending and adapting our products for Applied Intuition's global customers. · Work closely with customers to understand their development needs and use cases for autonomy to propose effective use of Applied Intuition's ...
-
Application Engineer
2ヶ月前
Tokyo Computer Futures++My client, One of the biggest services company is looking for Application Engineer.+ · ++++Develop applications using Java, Spring framework.+Collaborate with the Technical Lead to understand project requirements and deliver effective digital solutions.+Analyze, design, and imp ...
-
Application Engineer
2ヶ月前
Tokyo RakutenRakuten Bank is looking for an Application Engineer to join their team. The successful candidate will be responsible for designing and developing new functions and services, as well as maintaining and improving existing systems. · Business application design experience in financi ...
-
Application Engineer
1ヶ月前
Tokyo RakutenWe are currently recruiting members to join our newly established team for new service development as an application engineer. · We are looking for individuals who can contribute to the further development of Rakuten Card services by handling the design, construction, maintenanc ...
-
Application Engineer
1ヶ月前
Tokyo PeopleX Inc. Active Connector GroupThe company is seeking an Application Engineer for its SMS Business Division in Tokyo. The role involves developing applications for corporate mobile messaging platforms using React and TypeScript. · Responsibilities include designing technologies based on functional requirements ...
-
Application Engineer
3週間前
Tokyo, Tokyo AMETEKApplications Engineer within our global manufacturing organization delivering innovative solutions to customers. · ...
-
Application Engineer
1ヶ月前
Tokyo RakutenThe Platform Department develops and operates customer-facing services to ensure a comfortable experience for credit card holders. · Rakuten Card is currently advancing the lift-and-shift of existing systems to the cloud and strengthening collaboration between development and ope ...
-
Application Engineer
2週間前
Tokyo RakutenRakuten Card boasts over 30 million cards issued with No.1 credit card shopping transaction volume in Japan · We provide diverse payment methods to merchants including credit card payments convenience store payments carrier billing and deferred payments supporting systems used b ...
-
Tokyo RakutenThe Technology Management Division (TMD) provides Corporate IT services to Rakuten Group companies. · Build and manage a platform for employees to easily create and deploy AI agents. · Develop and publish AI agent development guidelines. · Serve as an internal AI expert team. · ...
