<aside> 👋 Hi! My name is Sepideh (Sep).

Product and UX Designer with experience leading end-to-end design across e-commerce, transactional, and data- heavy digital products.

Comfortable operating as the sole senior design voice, building design systems, discovery habits, and working standards from the ground up while shipping validated, production-ready work.

Partners closely with Product and Engineering to turn ambiguous business, technical, and user input into clear, evidence-backed decisions, holding craft, motion, and interaction detail to the same standard as the underlying flow.

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Contact

Portfolio

GitHub

☎️ +31 6 45 226 909

📍 Utrecht, NL

Work Experience

Product Designer (Contract)

Talk360,** Amsterdam, NL – (Nov 2025 - Mar 2026)

International calling app for migrant and diaspora communities, 6M connected across 190+ countries.

Owned end-to-end customer journeys across web and mobile for multi-market users, simplifying onboarding, calling, and pricing experiences through usability testing and iterative design.
Lifted call completion rate by 3% through activation-focused interaction design, validated through iterative usability testing.
Extended and maintained the Figma design system, components, tokens, and naming conventions, raising handoff quality and implementation fidelity for engineers.
Embedded AI-assisted workflows into research synthesis, rapid prototyping, and documentation, compressing concept-to-validation cycle time.
Partnered with PMs and engineers across international, multi-language releases to turn customer friction into practical, detail-level product improvements.

Product Designer & UX Researcher (Contract)

Monks, Hilversum, NL – (Sep 2024 - Sep 2025)

Monks is a global digital-first marketing and technology company working across AI, data, creative, and digital product innovation.

Owned complex dashboard and forecasting interfaces end-to-end within a component-based design system, increasing usability scores by 46% and cutting task completion time by 38%.
Led user research and translated behavioral signals into data-heavy interface concepts, keeping patterns consistent for reuse across multiple products.
Replaced opinion-driven decisions with evidence, presenting research-backed recommendations to senior stakeholders and turning findings into prioritized roadmaps, annotated prototypes, and developer-ready specs.
Built and scaled a reusable, documented Figma component system, improving interface consistency and craft quality across products.

Product Designer

Diginext, Tehran, IR – (Jan 2024 - Sep 2024)

Corporate venture builder (by Digikala) investing in eCommerce, logistics, cloud, AI and robotics startups.