Resume

One page, last updated 6 Sep 2026.

PDFWord

Jana Gonsenicova

Senior Product Designer — B2B SaaS

gonsenicova.jana@gmail.comjanagons.comlinkedin.com/in/janagonsenicovaPrague, Czechia — remoteCzech & Canadian citizen

Senior Product Designer working on complex, data-dense B2B SaaS across web, browser extension, mobile and desktop. I work AI-first: I use AI coding tools (Claude Code) to take research through into the real product environment — building prototypes and production-ready changes directly in the production codebase and design system, under engineering review. Some ship as merged pull requests; others become working references that engineers build from.

Experience

Senior Product Designer — Toggl

Mar 2025 – Present

Full-time · Remote · B2B SaaS — time tracking, planning and reporting

  • Designed end-to-end for two SaaS products across four platforms — web app, browser extension, mobile and desktop — from discovery research through to merged pull requests, on dense-data surfaces: timers, calendars, timesheets, reports and goals.
  • Led mixed-methods research at the scale each question required: two surveys totalling ~1,500 respondents, plus discovery and churn interviews, usability testing and production-usage analysis.
  • Ran exploration as working software — built competing options into the real UI behind a variant switcher so the team compared them in-product, surfacing edge cases (overlapping entries, timezones, offline sync) during exploration rather than mid-sprint.
  • From January 2026, worked in the production codebase and design system under engineering review: 79 pull requests across three repositories, 27 merged as production features (largest touched 31 files) — and 16 prototypes cited by 18 merged production pull requests written by other engineers, who built from them as behavioural reference.

UX Researcher & Product Designer — Adam Ondra

Sep 2024 – Apr 2025

Contract · Prague, Czechia · Remote

  • Planned and ran in-person discovery interviews with climbers for a new online platform, synthesising findings into the product principles and strategy for a personalised training product.

Product Designer — Morfeu AI Inc.

Oct 2024 – Feb 2025

Contract · New York, US · Remote · AI video SaaS

  • Redesigned Laila, an AI video generator, adapting the web experience into a mobile app with light and dark modes ahead of a Web Summit launch — features end-to-end, evolving the design system and defining flows with product and engineering in weekly sprints.

Product Designer — Freelance Core s.r.o.

Nov 2021 – Sep 2024

Contract · Prague, Czechia · Remote · Travel, hospitality and e-commerce

  • Led OROOM’s responsive website and booking-flow redesign, from audit and analytics through interviews and user testing: conversion up 6.4×, engagement sessions up 44%.
  • Rebuilt a booking-system website on Hotjar behavioural data: engagement up 35%, conversion up 25%. Responsive design, accessibility (WCAG) and prototype testing across European client products.

Product Designer — Prima DOMA MEDIA s.r.o.

Aug 2022 – Jul 2024

Contract · Prague, Czechia · Remote · Entertainment media platform

  • Established the core UX/UI for an entertainment media platform: 50+ wireframes across 11+ pages in three weeks, backed by competitor research and concept testing.
  • Introduced iterative, user-centred practice and redesigned TV-network interfaces through heuristic evaluation and A/B testing; led design discussions with stakeholders and developers at a major Czech TV channel.