TAKANOBU SAITO / PORTFOLIO Back to the central hub ↗

02 / Experience & Impact

Turn friction in the field into businesschangeand measurable outcomes .

Takanobu Saito — EXPERIENCE / IMPACT / OWNERSHIP

My experience spans financial systems engineering, sales, customer support, marketing, e-commerce, and UX. Where it can be shared, I show not only the outcomes but also the decisions and how they were carried into implementation and operations.

Explore the results
01 / OBSERVEFriction in the field 02 / DEFINEProblem to solve 03 / FRAMEMetrics and criteria 04 / BUILDExperience and operations 05 / VERIFYBusiness outcomes

Customer experience

Customer review count
No. 1 nationwide

Six months after opening the store, it ranked No. 1 nationwide for customer review count on the listing service.

0→1 / Multi-EC

Multi-channel e-commerce,Launch

Led setup and operations across Amazon, Shopify, a direct-to-consumer store, and Rakuten.

1→10 / EC

Monetizationand measurable outcomes

Built the business beyond launch through sales, operations, and ongoing improvement.

01 / Commercial outcomes

Show what changed,
not just the outcomes.

Numbers are not a substitute for job titles. I show the problem, my role, the structural change, and the observed result together.

01

Customer experience / Pet

Customer review count
No. 1 nationwide

Combine in-person customer service with store operations to reach No. 1 nationwide for customer review count on the listing service.

I opened a cat-breeding store and built in-person customer service and store operations instead of relying only on online channels. Six months after opening, the store reached No. 1 nationwide for customer review count on the listing service.

Cat breederIn-person serviceStore operationsCustomer reviews

Evidence / Customer experience

In-person customer service and the resulting ratings on a third-party service.

Takanobu working directly with cats in the store, checking the in-person experience and care environment
Takanobu working directly with cats in the store. A record of personally checking and improving the in-person customer experience and care environment.
01 / 02
02

0→1 / Multi-EC

Multi-channel e-commerce,
Launch

Connect multi-channel e-commerce from launch through operations.

Led new e-commerce launches on Amazon, Shopify, a direct-to-consumer store, and Rakuten. Covered front- and back-end design, overall direction, and management, connecting each channel’s role to one operating model.

Front-end designBack-end designDirectionManagement
03

1→10 / EC

From launch
Monetizationand measurable outcomes

Grow a newly launched e-commerce business through monetization.

Starting with a new Amazon business, I built a path to monetization through sales, operations, and continuous improvement—creating a sustainable business beyond launch.

Sales planningOperations designMonetizationImprovement

02 / Cross-functional experience

Cross-functional skills were
built through hands-on work.

Starting as a financial systems engineer, I have connected work across customers, sales, marketing, e-commerce, UX, and AI. The goal is not to accumulate specialties, but to reduce the gaps between customer experience and business operations.

Start / System

Financial systems engineer

The starting point of my career, working in systems.

Field

Sales and customer support

Expanded into customer-facing work, sales, in-person service, and retail.

Business

Marketing lead

Held roles as a web marketing lead, e-commerce launch lead, and director and lead for a cat breeder marketplace.

EC / Data

Amazon and Shopify

Connect e-commerce launches, sales and operations improvement, web analytics, KPI design, and campaign planning.

UX / AI

Design experiences and operations

Connect UX design and generative AI with analysis, initiatives, and ongoing improvement.

Personal build

Build working products

In personal projects, I lead web tools and sites from requirements and design through implementation, UX, and marketing.

03 / How impact happens

Before focusing on numbers,
build a structure for decisions.

Neither intuition from the field nor numbers alone are enough. Connect what happens at customer touchpoints with web analytics, KPIs, and UX.

01 / Observe

Notice friction

Observe what feels wrong for customers and frontline teams.

02 / Define

Define the problem

Identify who cannot decide what.

03 / Frame

Set criteria

Define KPIs, information order, and display conditions.

04 / Build

Build a working version

Translate the solution into an interface and operating process.

05 / Verify

Verify

Separate results from unknowns and feed them into the next improvement.

04 / Human × AI

AI brings speed.
People retain responsibility.

In personal development, AI is not magic. I own the problem and decision criteria, then use AI in distinct roles for design, review, and implementation.

I own

Own the problem and the final decision.

  • The problem and its users
  • Required functionality and information priorities
  • UX, navigation, and display criteria
  • Notice when something feels wrong
  • Acceptance and final publication decisions

AI collaboration

Speed up implementation and iteration.

  • Structure requirements and problems
  • Implementation approaches and code
  • Process large sets of conditions
  • Test and fix
  • UI, SEO, and security reviews

Do not delegate everything to AI.
Move between decisions and implementationback and forth.

05 / Evidence status

Document outcomes and unknowns
with equal care.

Keep public services, certification projects, and systems in personal use distinct. State what has been verified and what remains unknown.

01Pet dental-care UXCERTIFICATION CASE / Fictional brand / Small study with five participants→ 02Career Transition GuidePUBLIC SERVICE / Market demand and profitability unverified→ 03MTG PRICE CHECKPUBLIC SERVICE / Public and updateable / Profitability unverified→ 04AI Operations Control RoomPERSONAL USE / Productivity and multi-user use unverified→ 05Amazon Keyword Win/Loss DashboardWORKING DEMO / Public version uses fictional data only→