Humayun Khan, Designer in Split, Croatia
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Humayun Khan

Verified Expert  in Design


Split, Croatia
Toptal Member Since
August 9, 2017

Humayun has over ten years of experience designing and launching digital apps as part of agencies and startups, even freelancing across diverse industries that include semiconductor manufacturing, agrotech, fintech, and publishing. He loves complex UX challenges that require systems thinking, building industry expertise, and managing cross-functional stakeholders. Humayun can leverage his design know-how, product management, and founder experience to deliver exceptional results.


Work Experience

Product Designer

2022 - 2023
  • Took full ownership of the design process, ensuring a seamless and user-friendly experience for ClassDojo's Android users.
  • Collaborated with the engineering team to execute experiments, identifying the optimal tech stack as we transitioned away from Android Native.
  • Created comprehensive flows in Figma for various user personas, including parents, teachers, and students, ensuring consistency and clarity across all app versions.
  • Actively contributed to and utilized ClassDojo's design system, ensuring brand consistency and speeding up the design process.
Technologies: Product Design, Android, UX Design, UI Design, Component Libraries, Mobile App UI, Mobile App Design, Atomic Design, User Journeys, Android UI Design, App Design, Android App Design, Mobile First

Senior UI/UX Web App Designer

2022 - 2022
Ruthless Co.
  • Worked closely with the Chief Product Officer (CPO) to analyze user data and feedback on the MVP, identifying areas of improvement and potential enhancements.
  • Translated MVP insights into a comprehensive design for a new responsive web app, ensuring a seamless experience across devices.
  • Initiated the design process with sketches, progressing to detailed wireframes to visualize the app's structure and user flow.
  • Utilized Ruth Health's newly established brand guidelines to ensure the design was consistent with the company's visual identity.
  • Developed a UI design system based on the brand guidelines, streamlining the design process and ensuring consistency across the app.
Technologies: User Interface (UI), Responsive Web Design (RWD), User Experience (UX), Wireframing, UI Design, UX Design, Web App UX, Product Design, Web App UI, Dashboard Design, Visual Design, Healthcare, MVP Design, Web App Design, Style Guides, Component Libraries, Atomic Design, User Journeys, App Design, Web Design, Websites

Founder | Lead Designer

2021 - 2022
  • Developed a comprehensive online database tailored for aspiring writers, enabling them to efficiently identify and target suitable literary agents.
  • Designed a user-friendly UI system from the ground up, enhancing user experience and navigation.
  • Spearheaded the art direction for the platform's logo and branding, ensuring a cohesive and appealing visual identity.
  • Took on the product manager role, overseeing the app's development and ensuring alignment with project goals and user needs.
  • Collaborated with and managed a contract developer, ensuring timely and quality product build-out.
Technologies: Figma, Miro, Component Libraries, User Journeys, App Design, Web Design

UX Researcher

2021 - 2021
  • Worked with a diverse international team, leveraging different cultural insights and expertise to drive comprehensive research initiatives.
  • Conducted in-depth research on feasible methods for farmers to transition to carbon-neutral practices, understanding barriers, motivations, and potential solutions.
  • Explored how carbon credits could be utilized as a powerful incentive for farmers to adopt sustainable and carbon-neutral practices.
  • Performed a thorough competitive analysis in the carbon credit space, identifying key players, trends, and opportunities for Agoro Carbon Alliance to differentiate and excel.
  • Developed detailed journey maps to visualize the farmer's experience from awareness to the adoption of carbon-neutral practices, highlighting touchpoints, challenges, and opportunities.
  • Conducted interviews with farmers and other key stakeholders to gain firsthand insights into their needs, challenges, and perceptions regarding carbon-neutral practices and credits.
Technologies: UX Research, UX Design, Web UI, Web UX, User Experience (UX), User Journeys

Product Designer

2020 - 2021
Applied Materials
  • Collaborated with a leading semiconductor manufacturer to develop an automated pricing platform for diverse product lines.
  • Designed a comprehensive ERP solution tailored for pharmaceutical companies.
  • Enhanced equipment operations and utilization through the ERP system, leading to streamlined processes and increased efficiency.
  • Worked closely with cross-functional teams to ensure seamless integration and alignment with business objectives.
  • Leveraged industry best practices to deliver solutions that met the unique needs of the semiconductor and pharmaceutical sectors.
Technologies: Prototyping, User Flows, UI Prototyping, Enterprise Design, Enterprise System Design, Product Design, UI Design, UIKit, Enterprise SaaS, App Design, Web Design

Product Designer

2020 - 2020
Ambry Genetics
  • Collaborated with a top-tier clinical genomic-diagnostic company to design a comprehensive platform focused on COVID-19 assessment and testing.
  • Aimed to facilitate a safer return to work for employees by providing companies with end-to-end COVID-19 solutions.
  • Addressed critical health and safety concerns by integrating advanced diagnostic tools and assessment protocols.
  • Worked closely with healthcare professionals and company stakeholders to ensure the platform met industry standards and guidelines.
  • Prioritized user experience, ensuring the platform was intuitive and accessible for companies of various sizes and industries.
Technologies: Product Design, Web, Dashboards, Data Visualization, UX Design, Leadership, Agile, App Design, Web Design

Product Manager

2018 - 2020
  • Conducted primary and secondary research to deduce product strategy for a complex work-based learning platform teachers and community partners use to help students gain work-based learning experience.
  • Generated several throw-away prototypes as part of an extensive discovery and ideation phase that helped align key internal and external stakeholders on the product vision.
  • Led a product squad of two designers and upwards of eight developers (remote and in-house) to deliver a product to customers on a tight deadline.
  • Owned and ruthlessly prioritized both product backlog and product roadmaps.
  • Collaborated with marketing and onboarding departments to ensure successful product launches and training for existing and new customers.
Technologies: Airtable, InVision, Sketch, Jira, App Design, Figma

Design Lead

2016 - 2017
  • Worked as the first full-time product designer for a B2B startup selling road-mapping software to companies large and small to existing customers such as Nike, Urban Outfitters, Amazon, Coca-Cola, Slack, Reddit, Stripe, Adobe, and Walt Disney.
  • Redesigned the core application's navigation to delineate better the user's data set and various visualizations, including a timeline and a swimlane view.
  • Introduced design sprints, usability testing, user research, the best practices around design workflows, collaborating with the development team, and hiring processes for designers.
  • Designed a home dashboard from scratch to help users navigate and access their roadmaps better.
  • Vetted, interviewed, hired, and managed three junior-intermediate product designers.
Technologies: InVision, App Design, Figma, Web Design

Product Designer

2015 - 2016
Tiny Hearts (Acquired by Shopify 2016)
  • Designed an app for The Learning Partnership, aiding students in career choices. "Real Talk" achieved 10,000+ downloads and was featured on the iOS App Store.
  • Led a design sprint for Wealthsimple, optimizing mobile onboarding. The A/B-tested solution doubled mobile signups.
  • Assisted PumpUp in redesigning mobile navigation and added an in-app coaching feature for personal trainers to offer customized plans.
  • Designed a mobile app for an edtech startup called Akindi to enable educators to create bubble sheets, grade them using a scanner as soon as they got in, and distribute test results instantaneously to their students.
  • Helped a media company explore the mobile space for individuals interested in creative arts and crafts and diversify their existing product offering catering to them on the web and TV.
  • Conducted user research, rapid prototyping, and usability testing sessions to help them (the media mentioned above company) answer their hypothesis and assumptions faster.
Technologies: Zeplin, InVision, Sketch, Mobile App UI, Mobile App Design, App Design, Usability Testing, iOS

UX/UI Designer

2014 - 2015
Symbility Intersect
  • Worked as a lead UX designer for Second Cup's mobile loyalty app—second only to Starbucks in Canada—the application was rolled out nationally to great fanfare and success, enabling customers to purchase drinks and food and collect points.
  • Led the UI/UX for TJX's loyalty web app, supporting brands like Marshalls. The app lets users collect points with a responsive barcode and view rewards and promotions.
  • Served as a UX designer for a mobile app connected to an IoT device in the women's health space. My role was pivotal in creating an intuitive user experience, ensuring a seamless bridge between users and the device.
Technologies: CSS, HTML, Zeplin, InVision, Sketch, Mobile App UI, Mobile App Design, App Design
2018 - 2018

Certificate in Data Analysis

Brainstation - Toronto, ON

2013 - 2013

Certificate in Intro to Front-End Web Development

Thinkful - Remote

2013 - 2013

Certificate in Visual and Graphic Design

HackerYou College of Technology - Toronto, ON

2006 - 2010

Bachelor of Commerce Degree in Marketing

Ryerson University - Toronto, Canada