Siddhesh B.
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CC. Siddhesh belhekar 2025
Finance related Application
Finance related Application
Finance related Application
Modernized trading platform from
desktop-only to responsive web experience.
Modernized trading platform from
desktop-only to responsive web experience.
Modernized trading platform from
desktop-only to responsive web experience.
Redesigned a legacy WinForms trading platform into a modern web application with 60+ screens, cutting workflow steps by 40% and boosting efficiency by 35% through a scalable design system and responsive architecture.
Redesigned a legacy WinForms trading platform into a modern web application with 60+ screens, cutting workflow steps by 40% and boosting efficiency by 35% through a scalable design system and responsive architecture.
Redesigned a legacy WinForms trading platform into a modern web application with 60+ screens, cutting workflow steps by 40% and boosting efficiency by 35% through a scalable design system and responsive architecture.
My Role
My Role
My Role
UI/UX designer & consultant
UI/UX designer & consultant
UI/UX designer & consultant
Timeline
Timeline
Timeline
Nov 2024 - Aug 2025
Nov 2024 - Aug 2025
Nov 2024 - Aug 2025
Methods
Methods
Methods
UX Research, User Flows, UX and UI Design,
Visual Design, Prototyping, Usability Testing, Dev Handoff
UX Research, User Flows, UX and UI Design,
Visual Design, Prototyping, Usability Testing, Dev Handoff
UX Research, User Flows, UX and UI Design,
Visual Design, Prototyping, Usability Testing, Dev Handoff
Overview
Background
Background
Background
QuantXpress is a web-based algorithmic trading platform that lets traders execute and manage automated strategies with precision and control. The existing platform was built in WinForms—an outdated desktop framework with a cluttered interface, inconsistent design, and zero responsiveness. I led the complete redesign from scratch, transforming it into a modern, scalable web application that worked seamlessly across devices.
QuantXpress is a web-based algorithmic trading platform that lets traders execute and manage automated strategies with precision and control. The existing platform was built in WinForms—an outdated desktop framework with a cluttered interface, inconsistent design, and zero responsiveness. I led the complete redesign from scratch, transforming it into a modern, scalable web application that worked seamlessly across devices.
QuantXpress is a web-based algorithmic trading platform that lets traders execute and manage automated strategies with precision and control. The existing platform was built in WinForms—an outdated desktop framework with a cluttered interface, inconsistent design, and zero responsiveness. I led the complete redesign from scratch, transforming it into a modern, scalable web application that worked seamlessly across devices.
My Contribution
My Contribution
My Contribution
I led the end-to-end redesign—converting a legacy WinForms application into a modern web platform. This included auditing the old system, researching trader workflows, designing 60+ screens from scratch, and building a comprehensive design system. I worked closely with developers to ensure feasibility and delivered a responsive, accessible experience that improved both usability and performance.
I led the end-to-end redesign—converting a legacy WinForms application into a modern web platform. This included auditing the old system, researching trader workflows, designing 60+ screens from scratch, and building a comprehensive design system. I worked closely with developers to ensure feasibility and delivered a responsive, accessible experience that improved both usability and performance.
I led the end-to-end redesign—converting a legacy WinForms application into a modern web platform. This included auditing the old system, researching trader workflows, designing 60+ screens from scratch, and building a comprehensive design system. I worked closely with developers to ensure feasibility and delivered a responsive, accessible experience that improved both usability and performance.
Process & Project Timeline
Process & Project Timeline
Process & Project Timeline
Challenge
Challenge
Challenge
The legacy WinForms platform was built for a single desktop environment with a cluttered, inefficient interface. Traders struggled with too many clicks, poor data hierarchy, and unclear workflows that slowed decision-making. There was no design system, leading to inconsistent visuals, and zero responsiveness—making it unusable on ultrawide monitors, laptops, or tablets. The challenge was reimagining the entire experience for modern web standards without disrupting existing workflows.
The legacy WinForms platform was built for a single desktop environment with a cluttered, inefficient interface. Traders struggled with too many clicks, poor data hierarchy, and unclear workflows that slowed decision-making. There was no design system, leading to inconsistent visuals, and zero responsiveness—making it unusable on ultrawide monitors, laptops, or tablets. The challenge was reimagining the entire experience for modern web standards without disrupting existing workflows.
The legacy WinForms platform was built for a single desktop environment with a cluttered, inefficient interface. Traders struggled with too many clicks, poor data hierarchy, and unclear workflows that slowed decision-making. There was no design system, leading to inconsistent visuals, and zero responsiveness—making it unusable on ultrawide monitors, laptops, or tablets. The challenge was reimagining the entire experience for modern web standards without disrupting existing workflows.
Solutions
Solutions
Solutions
I streamlined the experience by showing only essential data upfront and hiding complexity behind intuitive controls. User testing helped me prioritize what traders needed immediately—then I designed quick gestures and one-tap actions so they could execute trades fast. Throughout, I worked closely with developers to ensure the design was both elegant and technically solid, balancing ambitious ideas with real-world performance constraints.
I streamlined the experience by showing only essential data upfront and hiding complexity behind intuitive controls. User testing helped me prioritize what traders needed immediately—then I designed quick gestures and one-tap actions so they could execute trades fast. Throughout, I worked closely with developers to ensure the design was both elegant and technically solid, balancing ambitious ideas with real-world performance constraints.
I streamlined the experience by showing only essential data upfront and hiding complexity behind intuitive controls. User testing helped me prioritize what traders needed immediately—then I designed quick gestures and one-tap actions so they could execute trades fast. Throughout, I worked closely with developers to ensure the design was both elegant and technically solid, balancing ambitious ideas with real-world performance constraints.
Framework
Framework
Key Results
Key Results
Key Results
35%
35%
35%
Improved user task efficiency
Improved user task efficiency
Improved user task efficiency
40%
40%
40%
Cutting workflow steps
Cutting workflow steps
Cutting workflow steps
Improved real-time data visibility and clarity.
Improved real-time data visibility and clarity.
Improved real-time data visibility
and clarity.
Research
Research
The business needed to modernize the platform to stay competitive, reduce maintenance costs of the outdated WinForms system, and support traders on different devices. From a design perspective, this meant rebuilding the entire experience from scratch—simplifying complex workflows, establishing visual consistency through a design system, ensuring responsive performance across screen sizes, and improving accessibility for diverse user needs.
The business needed to modernize the platform to stay competitive, reduce maintenance costs of the outdated WinForms system, and support traders on different devices. From a design perspective, this meant rebuilding the entire experience from scratch—simplifying complex workflows, establishing visual consistency through a design system, ensuring responsive performance across screen sizes, and improving accessibility for diverse user needs.
The business needed to modernize the platform to stay competitive, reduce maintenance costs of the outdated WinForms system, and support traders on different devices. From a design perspective, this meant rebuilding the entire experience from scratch—simplifying complex workflows, establishing visual consistency through a design system, ensuring responsive performance across screen sizes, and improving accessibility for diverse user needs.
Primary Research
Primary Research
Primary Research
I conducted interviews with 15 algorithmic traders currently using the WinForms platform to understand their biggest frustrations. Key insight: they felt trapped by an outdated interface that required too many clicks for simple tasks and offered no flexibility for their multi-monitor setups. Traders wanted modern web interactions—keyboard shortcuts, drag-and-drop, and responsive layouts—but were stuck with a rigid desktop application that hadn't evolved in years.
I conducted interviews with 15 algorithmic traders currently using the WinForms platform to understand their biggest frustrations. Key insight: they felt trapped by an outdated interface that required too many clicks for simple tasks and offered no flexibility for their multi-monitor setups. Traders wanted modern web interactions—keyboard shortcuts, drag-and-drop, and responsive layouts—but were stuck with a rigid desktop application that hadn't evolved in years.
I conducted interviews with 15 algorithmic traders currently using the WinForms platform to understand their biggest frustrations. Key insight: they felt trapped by an outdated interface that required too many clicks for simple tasks and offered no flexibility for their multi-monitor setups. Traders wanted modern web interactions—keyboard shortcuts, drag-and-drop, and responsive layouts—but were stuck with a rigid desktop application that hadn't evolved in years.
Secondary Research
Secondary Research
Secondary Research
I audited the existing WinForms platform and analyzed competitor web-based trading applications. The audit revealed inconsistent UI patterns, no design system, and workflows that hadn't been optimized since the platform's initial build. Industry research showed that 65% of professional traders now expect web-based platforms for flexibility, and 78% use multiple screen sizes throughout their day. The gap was clear: the WinForms platform was holding traders back, and competitors were already offering modern web alternatives.
I audited the existing WinForms platform and analyzed competitor web-based trading applications. The audit revealed inconsistent UI patterns, no design system, and workflows that hadn't been optimized since the platform's initial build. Industry research showed that 65% of professional traders now expect web-based platforms for flexibility, and 78% use multiple screen sizes throughout their day. The gap was clear: the WinForms platform was holding traders back, and competitors were already offering modern web alternatives.
I audited the existing WinForms platform and analyzed competitor web-based trading applications. The audit revealed inconsistent UI patterns, no design system, and workflows that hadn't been optimized since the platform's initial build. Industry research showed that 65% of professional traders now expect web-based platforms for flexibility, and 78% use multiple screen sizes throughout their day. The gap was clear: the WinForms platform was holding traders back, and competitors were already offering modern web alternatives.
Key Findings
Key Findings
Key Findings
Too many clicks for simple actions
Too many clicks for simple actions
Common tasks like starting a strategy or checking performance required 5-7 clicks. Traders needed shortcuts and streamlined flows.
Common tasks like starting a strategy or checking performance required 5-7 clicks. Traders needed shortcuts and streamlined flows.
Inconsistent UI patterns
Inconsistent UI patterns
The WinForms interface had no standardization. Buttons, tables, and controls looked different across screens, creating confusion.
The WinForms interface had no standardization. Buttons, tables, and controls looked different across screens, creating confusion.
Frustrated by rigid layouts
Frustrated by rigid layouts
Traders using ultrawide monitors or working on laptops found the interface either cramped or poorly utilized. They wanted flexibility.
Traders using ultrawide monitors or working on laptops found the interface either cramped or poorly utilized. They wanted flexibility.
Cognitive overload from clutter
Cognitive overload from clutter
Traders felt overwhelmed by dense, cluttered screens with no clear focus. They wanted to see critical data immediately without hunting for it.
Traders felt overwhelmed by dense, cluttered screens with no clear focus. They wanted to see critical data immediately without hunting for it.
Lack of modern expectations
Lack of modern expectations
Users expected web-standard interactions like keyboard shortcuts, tooltips, and responsive feedback—none of which existed in the old system.
Users expected web-standard interactions like keyboard shortcuts, tooltips, and responsive feedback—none of which existed in the old system.
Evaluation & Iteration
Evaluation & Iteration
Wireframes
Wireframes
Wireframes
I started with low-fidelity wireframes, testing 20+ iterations with traders to validate the new information architecture and simplified workflows. Once the structure was solid, I moved to high-fidelity prototypes that brought the modern web experience to life with realistic data and interactions.
I started with low-fidelity wireframes, testing 20+ iterations with traders to validate the new information architecture and simplified workflows. Once the structure was solid, I moved to high-fidelity prototypes that brought the modern web experience to life with realistic data and interactions.
I started with low-fidelity wireframes, testing 20+ iterations with traders to validate the new information architecture and simplified workflows. Once the structure was solid, I moved to high-fidelity prototypes that brought the modern web experience to life with realistic data and interactions.
Comprehensive Design System
Comprehensive Design System
Comprehensive Design System
To ensure scalability and consistency, I built a comprehensive design system from scratch with semantic colors for trade states, 250+ custom icons, typography optimized for screen readability, and reusable web components. This replaced the fragmented WinForms patterns with a unified, maintainable system. I documented all specs in Figma and collaborated closely with developers during implementation, ensuring the transition from WinForms to web was smooth and technically feasible.
To ensure scalability and consistency, I built a comprehensive design system from scratch with semantic colors for trade states, 250+ custom icons, typography optimized for screen readability, and reusable web components. This replaced the fragmented WinForms patterns with a unified, maintainable system. I documented all specs in Figma and collaborated closely with developers during implementation, ensuring the transition from WinForms to web was smooth and technically feasible.
To ensure scalability and consistency, I built a comprehensive design system from scratch with semantic colors for trade states, 250+ custom icons, typography optimized for screen readability, and reusable web components. This replaced the fragmented WinForms patterns with a unified, maintainable system. I documented all specs in Figma and collaborated closely with developers during implementation, ensuring the transition from WinForms to web was smooth and technically feasible.
Final designs
Final designs
The final product transformed the outdated WinForms platform into a modern, responsive web application across 60+ screens. Traders could now manage strategies efficiently with streamlined workflows that reduced clicks and prioritized critical information. Clear data hierarchy and a consistent design system replaced the cluttered, inconsistent interface. Responsive layouts adapted seamlessly to ultrawide monitors, standard desktops, and tablets—something impossible with the old system.
The final product transformed the outdated WinForms platform into a modern, responsive web application across 60+ screens. Traders could now manage strategies efficiently with streamlined workflows that reduced clicks and prioritized critical information. Clear data hierarchy and a consistent design system replaced the cluttered, inconsistent interface. Responsive layouts adapted seamlessly to ultrawide monitors, standard desktops, and tablets—something impossible with the old system.
The final product transformed the outdated WinForms platform into a modern, responsive web application across 60+ screens. Traders could now manage strategies efficiently with streamlined workflows that reduced clicks and prioritized critical information. Clear data hierarchy and a consistent design system replaced the cluttered, inconsistent interface. Responsive layouts adapted seamlessly to ultrawide monitors, standard desktops, and tablets—something impossible with the old system.
New design
New design
New design
New design
Key Results
Key Results
Key Results
Strong user acquisition demonstrating successful market penetration
Strong user acquisition demonstrating successful market penetration
Strong user acquisition demonstrating successful market penetration
35%
reduction in task completion time through simplified workflows and clearer information architecture
reduction in task completion time through simplified workflows and clearer information architecture
reduction in task completion time through simplified workflows and clearer information architecture
19%
increase in trader satisfaction scores after transitioning from WinForms to modern web platform
increase in trader satisfaction scores after transitioning from WinForms to modern web platform
increase in trader satisfaction scores after transitioning from WinForms to modern web platform
50%
fewer clicks required for common trading actions like starting strategies and monitoring performance
fewer clicks required for common trading actions like starting strategies and monitoring performance
fewer clicks required for common trading actions like starting strategies and monitoring performance
If I have more time, I could
If I have more time, I could
If I have more time, I could
I would have loved to explore advanced customization options—letting traders build their own dashboard layouts and save personalized views for different trading strategies. I'd also dive deeper into keyboard shortcuts and power-user features to make experienced traders even faster. Finally, conducting longitudinal studies to track how traders adapted to the new system over 3-6 months would provide valuable insights for future iterations.
I would have loved to explore advanced customization options—letting traders build their own dashboard layouts and save personalized views for different trading strategies. I'd also dive deeper into keyboard shortcuts and power-user features to make experienced traders even faster. Finally, conducting longitudinal studies to track how traders adapted to the new system over 3-6 months would provide valuable insights for future iterations.
I would have loved to explore advanced customization options—letting traders build their own dashboard layouts and save personalized views for different trading strategies. I'd also dive deeper into keyboard shortcuts and power-user features to make experienced traders even faster. Finally, conducting longitudinal studies to track how traders adapted to the new system over 3-6 months would provide valuable insights for future iterations.
What I learned
What I learned
What I learned
This project taught me that legacy systems hold valuable knowledge—traders had developed workarounds and habits that revealed what truly mattered to them. I learned to balance modernization with familiarity; not everything old is bad, and change needs to feel like an upgrade, not a disruption. Building a design system from scratch reinforced how critical consistency is for complex applications—it's not just about aesthetics, it's about reducing cognitive load. Finally, collaborating closely with developers early made the WinForms-to-web transition smoother; understanding technical constraints helped me design solutions that were both ambitious and achievable.
This project taught me that legacy systems hold valuable knowledge—traders had developed workarounds and habits that revealed what truly mattered to them. I learned to balance modernization with familiarity; not everything old is bad, and change needs to feel like an upgrade, not a disruption. Building a design system from scratch reinforced how critical consistency is for complex applications—it's not just about aesthetics, it's about reducing cognitive load. Finally, collaborating closely with developers early made the WinForms-to-web transition smoother; understanding technical constraints helped me design solutions that were both ambitious and achievable.
This project taught me that legacy systems hold valuable knowledge—traders had developed workarounds and habits that revealed what truly mattered to them. I learned to balance modernization with familiarity; not everything old is bad, and change needs to feel like an upgrade, not a disruption. Building a design system from scratch reinforced how critical consistency is for complex applications—it's not just about aesthetics, it's about reducing cognitive load. Finally, collaborating closely with developers early made the WinForms-to-web transition smoother; understanding technical constraints helped me design solutions that were both ambitious and achievable.
Next Project
Thank you for visit, It's means a lot for me..!
Stay happy, Stay safe,
Stay with love one's.
CC. Siddhesh belhekar 2025
Thank you for visit, It's means a lot for me..!
Stay happy, Stay safe,
Stay with love one's.
CC. Siddhesh belhekar 2025