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DEISO·

Senior Sustainability Systems & Digital Intelligence Architect | Careers at DEISO

Career opportunity Global execution and validation network Senior Sustainability Systems and Digital Architecture Specialist Application deadline June 20, 2026 Job ID DSJ04162624 Company DEISO LLC Language requirement Business-level Japanese DEISO is seeking a senior-level professional to help design and strengthen the execution environment around complex sustainability work — at the intersection of systems architecture, structured

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DEISO·

Digital Twin Engineer Job Opening in Tokyo – Apply Now | DEISO Careers

Careers Digital Twin Engineer job opening in Tokyo Are you an experienced Digital Twin Engineer with AI skills and a passion for no-code development? DEISO LLC is looking for a forward-thinking engineer to join our Tokyo office and contribute to innovative projects across AI, cloud engineering, and smart infrastructure. About the job Position details Job

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DEISO·

Join DEISO as an AI Engineer (Full-Time | Tokyo or Remote)

Job ID: DSJOB-05282902523 Join DEISO as an AI engineer Full-time · Tokyo or remote · Entry level DEISO LLC is a forward-thinking Japanese environmental sustainability company driving innovation through AI-supported platforms for Life Cycle Assessment (LCA) , EPD verification , carbon accounting , and critical material analysis . Our AI tools such as EcoIN Data

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DEISO·

Open Positions: Lead GHG Verifiers

Careers DEISO LLC is seeking highly qualified and experienced Lead GHG Verifiers to join our expert team. This is an excellent opportunity to work with a leading organization in greenhouse gas (GHG) verification and sustainability. Position details LocationTokyo Application deadlineMarch 15, 2025 Number of applicants2 Key responsibilities Perform verification of GHG emissions and carbon footprints

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DEISO·

Job: Life Cycle Assessment (LCA) Specialist (Job ID: DSJOB240907)

Careers DEISO LLC is seeking a highly motivated and experienced Life Cycle Assessment (LCA) Specialist to join our growing team. In this role, you will play a key role in supporting our sustainability initiatives by conducting LCA studies and promoting the integration of LCA principles throughout our projects. Responsibilities Conduct comprehensive Life Cycle Assessments (LCA)

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DEISO·

Hiring a Personal Assistant

Careers Hiring a Personal Assistant: DEISO is urgently seeking and employing a personal assistant for DEISO CEO (dei.so): (1) Native Japanese speaker, (2) business-level English speaker, and (3) resides in Saitama (or nearby), Japan. Contact Please contact us at https://dei.so/contact if you are interested or know someone who is. Important notes Please read 1This job

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DEISO·

A vacancy for a database engineer is open

Careers Job description The database engineer of this position is responsible for creating, implementing, updating, and working with database schema, importing, exporting, and integrating existing databases in desktop-based software and cloud applications. The database engineer also implements optimized, secured, and cohesive database design and then uses data replication schemes to create consistency across distributed database

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DEISO·

We are hiring a Software Engineer

Careers DEISO is hiring a Software Engineer to join our team for software development. The successful candidate will develop environmental sustainability software in collaboration with a Database Engineer and Senior Researchers. Required skills and requirements Full fluency in .Net. Full fluency in Java. Strong skills in Agile. Strong skills in MySQL. Strong background in C#.

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DEISO·

Job: Administrative Assistant

Careers A position of an Administrative Assistant is open at DEISO LLC to support the administration work and management of the company. This position requires full Japanese proficiency and a business level of English communication. Basic information Position details Job titleAdministrative Assistant Work placeSendai, Japan, DEISO LLC AddressCity House Ichibancho Chuo, 2F Office No. 4

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Contact Info.

English Address:
Level 21 Shiodome Shibarikyu Building
1-2-3 Kaigan, Minato-ku
105-0022 Tokyo, Japan.

Japanese Address:
〒105-0022 東京都港区海岸1-2-3
汐留芝離宮ビルディング21階, 合同会社DEISO.

Phone (JP): /
Phone (EN):
Fax: /
Email:

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Get Started with DEISO the Easy Way!

Go go.dei.so
Seven ways to start

Choose the entry point that fits where you are

Not every visitor knows what they need on day one. These seven onboarding paths cover the full range — from knowing exactly which service you want to starting from a question and letting AI guide you. Pick whichever fits.

1If you know what you needRecommended Find the right DEISO service Match your requirement to the right DEISO service in a few clicks. Filter by LCA, GHG, PCF, EPD, ESG, critical review, S-LCA, waste, circular economy, EIA, and more. Fastest path if you already know the scope. Good for “We need Scope 3 review and pre-submission checks before verification” or “We need an EPD prepared for EN 15804.” Open service finder → 2If you’re building internal capabilityRecommended Explore capacity building programs Match your team to the right DEISO training program — LCA, GHG accounting, PCF, EPD development, ESG reporting, environmental review, ISO 14001, and sector programs. Filter by role, level and format. Good for Teams building in-house LCA, GHG or EPD capability, and organisations aligned with workforce development priorities such as Saudi Arabia Vision 2030. Open training finder → 3If you need technical direction before engagementRecommended Free Technical Evaluation Request an initial technical evaluation for your sustainability requirement before committing to a full engagement. DEISO reviews your project need, technical context, enterprise requirement, reporting objective, and service direction to help identify the right path. Good for Enterprises, suppliers, and public sustainability teams that need technical direction before starting LCA, GHG, PCF, EPD, ESG, or sustainability operating system work. Start free evaluation → 4If you want an answer fast Use quick search Click the search icon in the page sidebar, or press Ctrl Shift Del to open the finder from anywhere on the site. Built for quick keyword lookups when you want results in seconds. Good for Anyone who already knows the term they are looking for — a standard, a service name, a training program — and wants to land on it without navigating. Open quick search → 5If you want to explore in depth Use advanced search Search across the full DEISO knowledge base — services, solutions, methodology, case studies, articles and technical resources. Best for when you want to research first, decide later. Good for Researchers, procurement teams and technical leads comparing methodology depth before opening a conversation. Open advanced search → 6If you’d rather see everything at once Browse the full site map A single index of every page and every article on the site — services, training programs, solutions, methodology, case studies and news. Filter it as you type, or read the structure top to bottom. Good for Returning visitors looking for a page they have seen before, and anyone who would rather scan the whole structure than answer filter questions. Open the site map → 7If you’d rather ask a questionAdvanced Ask Mirai AI DEISO Mirai™ AI Pro is DEISO’s AI guidance assistant. Ask a question about your sustainability need — it maps you to the right service, explains the approach, and hands off to the DEISO team when you’re ready. Try asking “What do we need to prepare for CSRD Scope 3 disclosure?” · “How do we start a product carbon footprint?” · “Which DEISO service fits an EPD project?” Ask Mirai →
Everything else you may need

Explore DEISO further

Not ready to start on a specific path? These pages give you the fuller picture — the core identity, the platform layer, past work, and how to reach the team.

Sustainability Operating Systems DEISO’s core identity — how the operating system model works and why it changes what sustainability execution looks like. Explore → All services The full catalogue of DEISO services across LCA, GHG, PCF, EPD, ESG, and adjacent sustainability execution. See services → Solutions DEISO solutions organised by industry challenge and business outcome — from decarbonisation to circular economy. See solutions → Platforms DEISO Visly, DEISO Spark, and the platform layer that supports every DEISO client engagement. See platforms → Case studies Real DEISO engagements across LCA, GHG, EPD and adjacent programs — with the outcomes clients actually cared about. Read cases → Our clients Enterprises, suppliers and public sustainability bodies DEISO has supported across regions and sectors. See clients → Company profile (PDF) DEISO’s structured company profile — for procurement, tenders and executive review. Open PDF → Contact DEISO Direct contact page with regional and departmental routing — for scoping calls, tenders and partnership discussions. Contact us →
Ready to engage

Request a quotation or send a direct enquiry

When you know the scope and are ready to move, submit a structured request — DEISO will scope the engagement to your context. Direct enquiries can also be sent to

Request a quotation → Email →