Product designer based in Brussels
Designing intuitive, scalable experiences for complex, high-impact platforms.
Works
About
Contact
Let’s Talk
Projects
A selection of work showcasing user experience design across complex, large-scale products

THIM – Thailand digital arrival card
& Immigration Services

KYC NOW – All-in-one KYC Solutions

WORPT Wallet - Tourist DigiPay
Sasiya Tassin
I’m a Product and UX/UI Designer working on complex digital platforms across fintech, social, and regulated environments. My work focuses on clarity, usability, and scalable design systems.
Senior productdesigner
Hashpays
2022 - Present
Led UX/UI design for complex web and mobile platforms, including crypto payments, digital wallets, eKYC, and Web3 products, working closely with cross-functional teams in regulated environments.Projects: WORPT Wallet (Crypto wallet), THIM (Thailand digital arrival card and immigration services) KYC Now (All-in-on KYC Solutions), NuvoTag (NFT tagging system) Hashpays (Crypto payment)
Product designer
Freelance Designer
2017 - Present
Remote UX/UI Designer with cross-domain experience in social, fintech, healthcare, and lifestyle products. Led end-to-end UX/UI design for mobile-first platforms, collaborating closely with engineering teams to deliver clear, scalable user experiences.
Projects: MyLife Fabric (Social media), FlashXchange (Web3 flashloan arbitrage platform), COCO Project (Medical records platform), THE MOMENT (Dating app),
Content designer
IC Web
2016
Produced and edited digital content as part of an agency team, delivering work for corporate clients. Contributed to branding, UX writing, and content strategy for early-stage websites and corporate campaigns. Collaborated cross-functionally on visual and written assets, including UI copy and digital reports.
Projects: KTC (Krungthai Credit Card), Kasikorn Bank, Tesco Lotus, BKKmenu.com
Stay connected
Works
About
Contact
sasiyatassin@gmail.com
Designing intuitive, scalable experiences for complex, high-impact platforms.
Product designer based in Brussels
Works
About
Contact
Let’s Talk
Projects
A selection of work showcasing user experience design across complex, large-scale products

THIM – Thailand digital arrival card & Immigration Services

KYC NOW – All-in-one KYC Solutions

WORPT Wallet - Tourist DigiPay
Sasiya Tassin
I’m a Product and UX/UI Designer working on complex digital platforms across fintech, social, and regulated environments. My work focuses on clarity, usability, and scalable design systems.
Senior product designer
Hashpays
2022 - Present
Led UX/UI design for complex web and mobile platforms, including crypto payments, digital wallets, eKYC, and Web3 products, working closely with cross-functional teams in regulated environments.Projects: WORPT Wallet (Crypto wallet), THIM (Thailand digital arrival card and immigration services) KYC Now (All-in-on KYC Solutions), NuvoTag (NFT tagging system) Hashpays (Crypto payment)
Product designer
Freelance Designer
2017 - Present
Remote UX/UI Designer with cross-domain experience in social, fintech, healthcare, and lifestyle products. Led end-to-end UX/UI design for mobile-first platforms, collaborating closely with engineering teams to deliver clear, scalable user experiences.
Projects: MyLife Fabric (Social media), FlashXchange (Web3 flashloan arbitrage platform), COCO Project (Medical records platform), THE MOMENT (Dating app),
Content designer
IC Web
2016
Produced and edited digital content as part of an agency team, delivering work for corporate clients. Contributed to branding, UX writing, and content strategy for early-stage websites and corporate campaigns. Collaborated cross-functionally on visual and written assets, including UI copy and digital reports.
Projects: KTC (Krungthai Credit Card), Kasikorn Bank, Tesco Lotus, BKKmenu.com
Stay connected
Works
About
Contact
sasiyatassin@gmail.com