Fleet Management – Abdulaziz Coskun · Product designer App, SaaS & Design Systems

Role 
Co-lead designer

Company
Hacon – A Siemens Company

Leading the Redesign Fleet Management for Modern Operations

I joined the Fleet Management project to overhaul an outdated, bloated platform used by specialized operations teams. With no designer previously involved, the UX was fragmented and developer-driven. Working under a tight deadline, I led a hands-on redesign focused on unifying navigation, modernizing the interface, and adapting an existing design system for fast, scalable delivery.

The Goal

Redesign a complex, outdated fleet management tool into a modern, user-friendly, and scalable interface. The aim was to simplify nested designs, reduce configuration toggles, unify overlapping features, and ensure full mobile usability — all while accelerating development using an existing design system.

TL;DR — S.O.A.R.

Situation

Fleet Management was running on an outdated UI with fragmented navigation, developer-driven UX, and no design system in place.

Objective

Redesign the platform with a streamlined navigation, modern interface, and improved mobile usability—without delaying development.

Action

Conducted a discovery workshop, unified the navigation, applied a scalable design system, and redesigned key screens with a user-first approach.

Result

A clean, intuitive interface ready for rollout—improving clarity, reducing complexity, and accelerating development without compromising UX.

Outcome

A Cleaner, Faster, More Scalable Fleet Management Tool

Within two months, we transformed a fragmented system into a modern, user-friendly interface with clear navigation and improved usability.

Ready for future development and client rollout.

More about outcome

Key Benefits

Unified Navigation Structure:
Simplify and consolidate overlapping features into a clear, cohesive flow.
Improved Usability:
Enhance user experience without increasing development timelines.
Scalable Modern Design:
Build on existing design system styles for future-proof consistency.
Accelerated Development:
Enable faster builds through a clean UI and reusable patterns.
Cross-Device Clarity:
Create intuitive interfaces that support operations teams on all devices.

This redesign laid a strong foundation for future iterations and user-driven improvements.

Role 

Lead Designer for Clarity, Usability, and Speed

Brought in as the sole product designer, I led the UX and UI overhaul of Fleet Management under tight deadlines. Within 2 months, I delivered a modern, user-friendly interface and a scalable navigation concept that streamlined development and improved usability across all screens.

More about my role

Key Contributions

Discovery Workshop:
Facilitate goal alignment with PMs and developers
Legacy Analysis:
Quickly grasp complex domain and existing UX issues
Unified Navigation:
Simplify overlapping features into a clear, cohesive flow
Scalable Foundation:
Adapt NextGen design system for fast rollout
Core Screens Redesign:
Create user-centered, streamlined interfaces
Cross-Team Collaboration:
Work closely with developers to ensure feasibility and speed

This role required balancing speed with quality. Delivering real UX value while supporting an accelerated delivery timeline.

Problem

Outdated UX Slowed Adoption and Development

Fleet Management was running on an outdated, bloated interface with no design system in place. Usability suffered across devices, and the experience was shaped more by developer constraints than user needs. A redesign was urgently needed to modernize the product and enable faster delivery.

The Opportunity

The redesign offered a clear opportunity to simplify a complex, cluttered platform into a user-friendly, modern interface. And to accelerate development while significantly improving usability across all devices.

More about the challenge

Identifying Core Challenges

Outdated Interface:
Cluttered, inconsistent UI causing navigation challenges for users
No Design System:
Lack of scalable foundation or reusable components increased complexity
Developer-Led UX:
Early redesigns prioritized internal workflows over user needs
Feature Overload:
Overlapping features scattered across screens created confusion and complexity
Limited Resources:
Tight timeline and minimal design input constrained research and iteration

Research & Discovery

Fast Discovery to Enable Immediate Design Execution

Due to the tight timeline, we focused on rapid onboarding and hands-on collaboration instead of extensive upfront research. Together we conducted a discovery workshop to understand the software’s purpose, the team’s goals, and existing pain points. This allowed us to identify key usability issues and prioritize critical design decisions early.

Key Insights

The product’s complexity came from overlapping features, unclear structure, and a lack of UX thinking. Making simplification, clarity and usability the top priorities.

More about Research & Discovery

What We Did

Discovery Workshop:
Facilitate a focused session with stakeholders to align on goals and constraints
Lean Research:
Skip formal UX research to accelerate delivery while staying aligned
Design Foundation:
Adopt NextGen design system for consistency and rapid implementation
Knowledge Mining:
Collaborate closely with PMs and developers to extract domain expertise
UX Prioritization:
Focus on improvements balancing functionality with technical feasibility

This lean discovery approach ensured we could move fast without losing alignment on user needs and business goals.

Process

Designing a Scalable UX on a Compressed Timeline

With speed as a priority, we focused on high-impact decisions that could be implemented quickly. Leveraging the foundation of the NextGen Transit app, I adapted the design language to fit the specific needs of Fleet Management. Collaboration with PMs and developers was ongoing, enabling iterative feedback and fast, aligned execution.

Key Milestone

Navigation concept and core UI overhaul completed within 2 months.

More about design process

Our design process prioritized collaboration, iteration, and user-centered thinking, ensuring a seamless experience across platforms.

What We Did

Product Audit:
Review the existing app and ongoing redesign to identify pain points
Navigation Concept:
Define a streamlined, scalable model to unify overlapping features
Design System Adaptation:
Leverage NextGen’s modern, accessible design system as a foundation
User-Centered Screens:
Create modular, responsive layouts for desktop, tablet, and mobile use cases
Cross-Functional Collaboration:
Work closely with developers and PMs to ensure feasibility and clarity
Production-Ready Assets:
Deliver Figma files with clear specs for smooth development handoff

This hands-on, pragmatic process enabled fast delivery without compromising UX quality or long-term scalability.

Reflection

Strategic Insights & Key Learnings

This project reinforced how effective UX design can still thrive under tight deadlines when grounded in clear goals, smart reuse, and close collaboration. While the timeline limited research and system-building, it pushed us to focus on clarity, usability, and scalable foundations from day one.