Darya Seregina
Senior Product Designer
Main page
SaaS
SaaS
B2B
B2B
Flagman Oil Expert
Flagman Oil Expert
Flagman Oil Expert
One system, three admin panels: designing role-based UX for complex operations
One system, three admin panels: designing role-based UX for complex operations
One system, three admin panels: designing role-based UX for complex operations
Overview
Overview
Overview
Flagman Oil Expert is a B2B platform that brings suppliers, distributors, and retailers together in one system. The platform covers the full supply chain flow
— from product assortment and pricing to order management, delivery, documents, and analytics. The main goal of the project is to remove gaps between participants, reduce manual work, and make complex
B2B processes transparent and manageable even
as the business scales.
Flagman Oil Expert is a B2B platform that brings suppliers, distributors, and retailers together in one system. The platform covers the full supply chain flow — from product assortment and pricing to order management, delivery, documents, and analytics. The main goal of the project is to remove gaps between participants, reduce manual work, and make complex B2B processes transparent and manageable even as the business scales.
Flagman Oil Expert is a B2B platform that brings suppliers, distributors, and retailers together in one system. The platform covers the full supply chain flow — from product assortment and pricing to order management, delivery, documents, and analytics. The main goal of the project is to remove gaps between participants, reduce manual work, and make complex B2B processes transparent and manageable even as the business scales.
Sphere
Sphere
Role
Role
Team
Team
Supply Chain & Distribution, B2B Platform
Supply Chain & Distribution, B2B Platform
Lead Product Designer
Lead Product Designer
2 marketers, 2 designers, 1 developer
2 marketers, 2 designers, 1 developer
Problems & Tasks
Problems & Tasks
Problems & Tasks
Low automation
Low automation
Low automation
Processes depend on manual actions
Processes depend on manual actions
Processes depend on manual actions
Pricing chaos
Pricing chaos
Pricing chaos
Unstable
and unclear pricing rules
Unstable
and unclear pricing rules
Unstable
and unclear pricing rules
Errors
Errors
Errors
Mistakes in orders and inventory
Mistakes in orders and inventory
Mistakes in orders and inventory
Lack of visibility
Lack of visibility
Lack of visibility
No shared view of the supply chain
No shared view of the supply chain
No shared view of the supply chain
Market
Market
Market
Prevent errors through system logic
Why?
The system should restrict invalid actions and guide users through correct workflows by design
The system should restrict invalid actions and guide users through correct workflows by design
Error prevention = stable processes and scalable operations
Error prevention = stable processes and scalable operations
Error prevention = stable processes and scalable operations
Scalability
Scalability
Error prevention
Error prevention
Reduce time to action (TTA)
Why?
Access to product cards, contact information, documents and orders in one click
Faster access to data = faster decisions
Decision-making
Decision-making
Efficiency
Efficiency
Make complex workflows easy to use
Why?
Interface should help users quickly understand what’s happening and what they need to do at each step
Lower cognitive load = fewer mistakes and faster daily work
Lower cognitive load = fewer mistakes and faster daily work
Usability
Usability
Reliability
Reliability
User-Flow
User-Flow
User-Flow
Prototyping
Prototyping
Prototyping
A new look at B2B
process automation
A new look at B2B
process automation
A new look at B2B
process automation
The system is designed as a single workspace for the entire supply chain — suppliers, distributors, and retailers
The system is designed as a single workspace for
the entire supply chain — suppliers, distributors,
and retailers
Each role sees only what is relevant, while everyone works with the same up-to-date data
Each role sees only what is relevant, while everyone works with the same up-to-date data
Pricing, statuses and process steps are defined at the system level and do not depend on manual coordination
Pricing, statuses and process steps are defined at the system level and do not depend on manual coordination
Process automation help prevent mistakes before they happen
Process automation help prevent mistakes before they happen
Clear statuses, fixed totals, and a full change history make processes predictable for all sides
Clear statuses, fixed totals, and a full change history make processes predictable for all sides
Inventory automation — Manage products in one click
Inventory automation — Manage products in one click
Inventory automation — Manage products in one click
All products, stock levels, and statuses are shown in one place. Filters and period-based sorting make it easy to work with large data sets without extra screens or manual checks
All products, stock levels, and statuses are shown in one place. Filters and period-based sorting make it easy to work with large data sets without extra screens or manual checks
All product details in one view
All product details in one view
All product details in one view
Name, brand, stock level, and description are structured into clear sections. Instead of spreading actions across multiple screens, the card keeps decisions close to the data, making product management faster and more reliable
Name, brand, stock level, and description are structured into clear sections. Instead of spreading actions across multiple screens, the card keeps decisions close to the data, making product management faster and more reliable
Orders as a Controlled Process
Orders as a Controlled Process
Orders as a Controlled Process
A complex multi-role workflow turns into a structured and transparent system. Clear statuses, fixed totals, and a full change history allow suppliers, distributors, and retailers to work within one shared process — without manual coordination or constant clarifications
A complex multi-role workflow turns into a structured and transparent system. Clear statuses, fixed totals, and a full change history allow suppliers, distributors, and retailers to work within one shared process — without manual coordination or constant clarifications
Review-first order flow
Review-first order flow
Review-first order flow
When a request comes in, the manager checks real stock availability
and conditions before approving or rejecting it. This prevents over-selling, stock conflicts, and broken expectations between partners
When a request comes in, the manager checks real stock availability
and conditions before approving or rejecting it. This prevents over-selling, stock conflicts, and broken expectations between partners
Track every order — from creation to delivery
Track every order — from creation to delivery
Track every order — from creation to delivery
All active and completed orders are grouped by status and shown in a single view. Managers can instantly see what’s being prepared, approved, delivered, or already completed — without opening each order one by one
All active and completed orders are grouped by status and shown in a single view. Managers can instantly see what’s being prepared, approved, delivered, or already completed — without opening each order one by one
One system instead of fragmented tools
One system instead of fragmented tools
One system instead of fragmented tools
No more juggling tools and files — everything is now in one place. Products, orders, documents, analytics, and communication are connected into one transparent flow for suppliers, distributors, and stores
No more juggling tools and files — everything is now in one place. Products, orders, documents, analytics, and communication are connected into one transparent flow for suppliers, distributors, and stores
No more juggling tools and files — everything is now in one place. Products, orders, documents, analytics, and communication are connected into one transparent flow for suppliers, distributors, and stores
Documents without chaos
Documents without chaos
Documents without chaos
All operational documents are stored in one structured space and linked to real clients and orders. Invoices, receipts, acceptance acts and the database of all customers are always easy to find and download the necessary document
All operational documents are stored in one structured space and linked to real clients and orders. Invoices, receipts, acceptance acts and the database of all customers are always easy to find and download the necessary document
Why it works?
Why it works?
I designed Flagman Oil Expert around one belief: if the system is smart enough, the interface can be simple. Role-based panels give each participant a focused workspace. Approval gates, stock validation and fixed pricing rules catch errors before they cost anything. And one-click access to all critical data means users spend their time deciding — not searching.
I designed Flagman Oil Expert around one belief: if the system is smart enough, the interface can be simple. Role-based panels give each participant a focused workspace. Approval gates, stock validation and fixed pricing rules catch errors before they cost anything. And one-click access to all critical data means users spend their time deciding — not searching.
I designed Flagman Oil Expert around one belief: if the system is smart enough, the interface can be simple. Role-based panels give each participant a focused workspace. Approval gates, stock validation and fixed pricing rules catch errors before they cost anything. And one-click access to all critical data means users spend their time deciding — not searching.
Results and impact
Results and impact
Up to 50% less manual work — product uploads, inventory updates,
and order handling moved from spreadsheets and chats into automated workflows.
Up to 50% less manual work — product uploads, inventory updates,
and order handling moved from spreadsheets and chats into automated workflows.
Up to 50% less manual work — product uploads, inventory updates,
and order handling moved from spreadsheets and chats into automated workflows.
40% fewer order issues — stock-based order approval and clear system rules reduced overselling, rework, and last-minute fixes.
40% fewer order issues — stock-based order approval and clear system rules reduced overselling, rework, and last-minute fixes.
40% fewer order issues — stock-based order approval and clear system rules reduced overselling, rework, and last-minute fixes.
2× faster time to action — predictable workflows and familiar patterns reduce confusion, cognitive load and speed up decision-making.
2× faster time to action — predictable workflows and familiar patterns reduce confusion, cognitive load and speed up decision-making.
2× faster time to action — predictable workflows and familiar patterns reduce confusion, cognitive load and speed up decision-making.
Darya Seregina © 2026
seregina.design@mail.ru
Version 1.0
Darya Seregina
Main page
SaaS
B2B
Flagman Oil Expert
One system, three admin panels: designing role-based UX for complex operations
Overview
Flagman Oil Expert is a B2B platform that brings suppliers, distributors, and retailers together in one system. The platform covers the full supply chain flow — from product assortment and pricing to order management, delivery, documents, and analytics. The main goal of the project is to remove gaps between participants, reduce manual work, and make complex B2B processes transparent and manageable even as the business scales.
Sphere
Role
Team
Supply Chain & Distribution, B2B Platform
Lead Product Designer
2 marketers, 2 designers, 1 developer
Problems & Tasks
Nova Geon is a career guidance platform built for every side of the process — from the student finding their path to the employer looking for the right candidate. The platform
Key issues that were identified: manual processes across every step, unstable pricing rules, frequent order errors, zero shared visibility across supply chain participants.
Why?
Error prevention = stable processes and scalable operations
The system should restrict invalid actions and guide users through correct workflows by design.
The system should restrict invalid actions and guide users through correct workflows by design
Prevent errors through system logic
Prevent errors through system logic
Error prevention
Error prevention
Scalability
Scalability
Why?
Error prevention = stable processes and scalable operations
Faster access to data = faster decisions
The system should restrict invalid actions and guide users through correct workflows by design.
Access to product cards, contact information, documents and orders in one click
Prevent errors through system logic
Reduce time to action (TTA)
Error prevention
Decision-making
Scalability
Efficiency
Why?
Error prevention = stable processes and scalable operations
Lower cognitive load = fewer mistakes and faster daily work
The system should restrict invalid actions and guide users through correct workflows by design.
Interface should help users quickly understand what’s happening and what they need to do at each step
Prevent errors through system logic
Make complex workflows easy
to use
Make complex workflows easy to use
Error prevention
Usability
Scalability
Reliability
Usability
Reliability
User-Flow
Prototyping
A new look at B2B
process automation
The system is designed as a single workspace for the entire supply chain — suppliers, distributors, and retailers
Each role sees only what is relevant, while everyone works with the same up-to-date data
Pricing, statuses and process steps are defined at the system level and do not depend on manual coordination
Process automation help prevent mistakes before they happen
Clear statuses, fixed totals, and a full change history make processes predictable for all sides
Manage products in one click
All products, stock levels, and statuses are shown in one place. Filters and period-based sorting make it easy to work with large data sets without extra screens or manual checks
All products, stock levels, and statuses are shown in one place. Filters and period-based sorting make it easy to work with large data sets without extra screens or manual checks
All product details in one view
Details and description are structured into clear sections. Instead of spreading actions across multiple screens, the card keeps decisions close to the data, making product management faster and more reliable.
Details and description are structured into clear sections. Instead of spreading actions across multiple screens, the card keeps decisions close to the data, making product management faster and more reliable.
Orders as a Controlled Process
A complex multi-role workflow turns into a structured and transparent system. Clear statuses, fixed totals, and a full change history allow suppliers, distributors, and retailers to work within one shared process — without manual coordination or constant clarifications
Review-first order flow
When a request comes in, the manager checks real stock availability and conditions before approving or rejecting it. This prevents over-selling, stock conflicts, and broken expectations between partners
When a request comes in, the manager checks real stock availability and conditions before approving or rejecting it. This prevents over-selling, stock conflicts, and broken expectations between partners
Track every order
All active and completed orders are grouped by status and shown in a single view. Managers can see what’s being approved, delivered, or already completed — without opening each order one by one.
All active and completed orders are grouped by status and shown in a single view. Managers can see what’s being approved, delivered, or already completed — without opening each order one by one.
One system instead of fragmented tools
One system instead
of fragmented tools
No more juggling tools and files — everything is now
in one place. Products, orders, documents, analytics,
and communication are connected into one transparent flow for suppliers, distributors, and stores
No more juggling tools and files — everything is now in one place. Products, orders, documents, analytics, and communication are connected into one transparent flow for suppliers, distributors, and stores
Documents without chaos
All operational documents are stored in one structured space and linked to real clients and orders. Invoices, receipts, acceptance acts and the database of all customers are always easy to find and download the necessary document
All operational documents are stored in one structured space and linked to real clients and orders. Invoices, receipts, acceptance acts and the database of all customers are always easy to find and download the necessary document
Why it works?
I designed Flagman Oil Expert around one belief: if the system is smart enough, the interface can be simple. Role-based panels give each participant a focused workspace. Approval gates, stock validation and fixed pricing rules catch errors before they cost anything. And one-click access to all critical data means users spend their time deciding — not searching.
Results and impact
Up to 50% less manual work — product uploads, inventory updates,
and order handling moved from spreadsheets and chats into automated workflows
Up to 50% less manual work — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows
40% fewer order issues — stock-based order approval and clear system rules reduced overselling, rework, and last-minute fixes
2× faster time to action — predictable workflows and familiar patterns reduce confusion, cognitive load and speed up decision-makin
Darya Seryogina © 2026
Darya Seregina © 2026
Version 1.0