Available for opportunities worldwide
Designing
I’m Jez, legally known as Rajesh Siburian, a Product Designer with 5 years of experience helping companies design enterprise platforms, financial systems, and digital infrastructure that drive durable competitive advantage.
5+
10
12+
Selected work
FINTECH
National logistics ecosystem Indonesia
End-to-end product design for NLE Connect, a collaboration between the Ministry of Finance, ASDEKI, and Lacak.io. Designed a user-centered mobile platform for depot personnel across Indonesia.
IDR 1.462T
Projected logistics savings
72%
Gate-in time cut
6% GDP
Logistics cost reduction
B2B e-commerce
Leading design for global branded merchandise platform
€100K+ in estimated development costs avoided through delegated B2B payments, automated VAT feedback, and seven-day inventory reservations.
GovTech infrastructure
Designing mobile gate automation for Indonesia’s national logistics ecosystem
92% less gate-processing time through mobile OCR, offline workflows, and safer in-cab inspections across container-depot operations.
Fintech
Eliminating trading anxiety for European retail savers
A calmer trading experience with a two-layer order flow, 15-second quote freeze, and explicit recovery states across web and mobile.
Recognition
Top Product Design
by Dribbble Select 2026
One of the top AI Design
at Figma Community
Selected by Framer to represent Indonesia at the Framer Singapore Meetup 2024