Darya Seregina
Darya Seregina
Darya Seregina
Senior Product Designer
Senior Product Designer
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
One system, three admin panels: designing role-based UX for complex operations
Task
Task
Task
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Results
Results
Results
↓ Reduce manual work across the entire chain
↓ Reduce order errors through system-level validation
Scales without rebuilding — new roles and modules plug into the same structure
↓ Reduce manual work across the entire chain
↓ Reduce order errors through system-level validation
Scales without rebuilding — new roles and modules plug into the same structure
↓ Reduce manual work across the entire chain
↓ Reduce order errors through system-level validation
Scales without rebuilding — new roles and modules plug into the same structure
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
Sphere
Role
Role
Role
Year
Year
Year
Supply Chain & Distribution, Automotive
Supply Chain & Distribution, Automotive
Supply Chain & Distribution, Automotive
Lead Product Designer
Lead Product Designer
Lead Product Designer
2025
2025
2025
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
Prevent errors through system logic
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
Why?
Why?
Error prevention = stable processes and scalability
Error prevention = stable processes and scalability
Error prevention = stable processes and scalability
Scalability
Scalability
Error prevention
Error prevention
Reduce time to action (TTA)
Reduce time to action (TTA)
Why?
Why?
Access to product cards, contact information, documents and orders in one click
Access to product cards, contact information, documents and orders in one click
Faster access to data = faster decisions
Faster access to data = faster decisions
Decision-making
Decision-making
Efficiency
Efficiency
Make complex workflows easy to use
Make complex workflows easy to use
Why?
Why?
Interface should help users quickly understand what’s happening and what they need to do at each step
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
Usability
Reliability
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
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
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
Inventory automation — Manage products in one click
Previously, stock levels were tracked in separate spreadsheets — one per manager. I consolidated everything into a single view with real-time statuses and filters, so anyone with access can make decisions based on the same data, not their own copy of it
Previously, stock levels were tracked in separate spreadsheets — one per manager. I consolidated everything into a single view with real-time statuses and filters, so anyone with access can make decisions based on the same data, not their own copy of it
Previously, stock levels were tracked in separate spreadsheets — one per manager. I consolidated everything into a single view with real-time statuses and filters, so anyone with access can make decisions based on the same data, not their own copy of it
All product details in one view
All product details in one view
All product details in one view
I structured the product card so that the most frequent actions — checking stock, editing details, updating status — are all reachable without leaving the view. Less navigation means fewer context switches, and fewer context switches mean fewer errors
I structured the product card so that the most frequent actions — checking stock, editing details, updating status — are all reachable without leaving the view. Less navigation means fewer context switches, and fewer context switches mean fewer errors
I structured the product card so that the most frequent actions — checking stock, editing details, updating status — are all reachable without leaving the view. Less navigation means fewer context switches, and fewer context switches mean fewer errors
Orders as a Controlled Process
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
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
This was a deliberate design decision: no order gets confirmed without a human check against real stock. It slows the flow down by one step — but that one step eliminates a whole class of problems: overselling, delivery conflicts, and the trust issues that follow
This was a deliberate design decision: no order gets confirmed without a human check against real stock. It slows the flow down by one step — but that one step eliminates a whole class of problems: overselling, delivery conflicts, and the trust issues that follow
This was a deliberate design decision: no order gets confirmed without a human check against real stock. It slows the flow down by one step — but that one step eliminates a whole class of problems: overselling, delivery conflicts, and the trust issues that follow
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
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
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
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
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?
Why it works?
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them. Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them. Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them. Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them. Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
Results and impact
Results and impact
Results and impact
Manual work dropped significantly — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows. The team stopped spending time on coordination and started spending it on actual work.
Manual work dropped significantly — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows. The team stopped spending time on coordination and started spending it on actual work.
Manual work dropped significantly — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows. The team stopped spending time on coordination and started spending it on actual work.
Manual work dropped significantly — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows. The team stopped spending time on coordination and started spending it on actual work.
Order errors became the exception, not the norm — stock-based approval and system-level validation rules removed the conditions that caused overselling and last-minute fixes in the first place.
Order errors became the exception, not the norm — stock-based approval and system-level validation rules removed the conditions that caused overselling and last-minute fixes in the first place.
Order errors became the exception, not the norm — stock-based approval and system-level validation rules removed the conditions that caused overselling and last-minute fixes in the first place.
Order errors became the exception, not the norm — stock-based approval and system-level validation rules removed the conditions that caused overselling and last-minute fixes in the first place.
Decision-making got faster — not because the interface is flashy, but because all relevant data is one click away. Users stopped searching and started acting.
Decision-making got faster — not because the interface is flashy, but because all relevant data is one click away. Users stopped searching and started acting.
Decision-making got faster — not because the interface is flashy, but because all relevant data is one click away. Users stopped searching and started acting.
Decision-making got faster — not because the interface is flashy, but because all relevant data is one click away. Users stopped searching and started acting.
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
Year
Supply Chain & Distribution, Automotive
Lead Product Designer
2025
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
Why it works?
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them. Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
Results and impact
Manual work dropped significantly — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows. The team stopped spending time on coordination and started spending it on actual work
Order errors became the exception, not the norm — stock-based approval and system-level validation rules removed the conditions that caused overselling and last-minute fixes in the first place
Decision-making got faster — not because the interface is flashy, but because all relevant data is one click away. Users stopped searching and started acting
Problems & Tasks
The team was running the business through spreadsheets, chats, and phone calls. Every order involved manual checks, back-and-forth confirmations, and a high chance of someone working with outdated data. Pricing rules weren't documented anywhere — they lived in people's heads. The real problem wasn't a lack of tools. It was a lack of a shared source of truth.
Why?
Error prevention = stable processes and scalable operations
The system should restrict invalid actions and guide users through correct workflows by design.
Prevent errors through system logic
Error prevention
Scalability
Why?
Faster access to data = faster decisions
Access to product cards, contact information, documents and orders in one click
Reduce time to action (TTA)
Decision-making
Efficiency
Why?
Lower cognitive load = fewer mistakes and faster daily work
Interface should help users quickly understand what’s happening and what they need to do at each step
Make complex workflows easy to use
Usability
Reliability
Darya Seregina © 2026
Рус
Eng
Darya Seregina
Darya Seregina
Task
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Build a unified B2B platform connecting suppliers, distributors, and retailers — replacing manual coordination with automated workflows across the full supply chain cycle
Results
↓ Reduce manual work across the entire chain
↓ Reduce order errors through system-level validation
Scales without rebuilding — new roles and modules plug into the same structure
↓ Reduce manual work across the entire chain
↓ Reduce order errors through system-level validation
Scales without rebuilding — new roles and modules plug into the same structure
↓ Reduce manual work across the entire chain
↓ Reduce order errors through system-level validation
Scales without rebuilding — new roles and modules plug into the same structure
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.
Sphere
Sphere
Role
Role
Team
Year
Year
Role
Year
Supply Chain & Distribution, B2B Platform
Supply Chain & Distribution, Automotive
Supply Chain & Distribution, Automotive
Supply Chain & Distribution, Automotive
Lead Product Designer
Lead Product Designer
2 marketers, 2 designers, 1 developer
2025
2025
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
The team was running the business through spreadsheets, chats, and phone calls. Every order involved manual checks, back-and-forth confirmations, and a high chance of someone working with outdated data. Pricing rules weren't documented anywhere — they lived in people's heads. The real problem wasn't a lack of tools. It was a lack of a shared source of truth.
Why?
Error prevention = stable processes and scalable operations
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
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
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
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
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
Previously, stock levels were tracked in separate spreadsheets — one per manager. I consolidated everything into a single view with real-time statuses and filters, so anyone with access can make decisions based on the same data, not their own copy of it
Previously, stock levels were tracked in separate spreadsheets — one per manager. I consolidated everything into a single view with real-time statuses and filters, so anyone with access can make decisions based on the same data, not their own copy of it
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.
I structured the product card so that the most frequent actions — checking stock, editing details, updating status — are all reachable without leaving the view. Less navigation means fewer context switches, and fewer context switches mean fewer errors
I structured the product card so that the most frequent actions — checking stock, editing details, updating status — are all reachable without leaving the view. Less navigation means fewer context switches, and fewer context switches mean fewer errors
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
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
This was a deliberate design decision: no order gets confirmed without a human check against real stock. It slows the flow down by one step — but that one step eliminates a whole class of problems: overselling, delivery conflicts, and the trust issues that follow
This was a deliberate design decision: no order gets confirmed without a human check against real stock. It slows the flow down by one step — but that one step eliminates a whole class of problems: overselling, delivery conflicts, and the trust issues that follow
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
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
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
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.
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them.
Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
I designed Flagman Oil Expert around one principle: a well-structured system makes the interface feel simple — even when the underlying logic is complex. Role-based panels remove noise by showing each participant only what's relevant to them. Approval gates and validation rules catch problems before they become costly. And by putting all critical data within one click, I made sure users spend their time on decisions — not on finding information.
Good design here wasn't just about the interface — it was about making the whole delivery process more predictable.
Results and impact
Up to 50% less manual work — product uploads, inventory updates,
and order handling moved from spreadsheets and chats into automated workflows
Manual work dropped significantly — product uploads, inventory updates, and order handling moved from spreadsheets and chats into automated workflows. The team stopped spending time on coordination and started spending it on actual work
40% fewer order issues — stock-based order approval and clear system rules reduced overselling, rework, and last-minute fixes
Order errors became the exception, not the norm — stock-based approval and system-level validation rules removed the conditions that caused overselling and last-minute fixes in the first place
2× faster time to action — predictable workflows and familiar patterns reduce confusion, cognitive load and speed up decision-makin
Decision-making got faster — not because the interface is flashy, but because all relevant data is one click away. Users stopped searching and started acting