Shereen López
Lead Product Designer & Design Engineer
Summary
I design complex software and build the parts that need shipping, which means product decisions don’t get lost between Figma and production. I’ve spent ten years across SaaS, AI and EdTech, with an earlier career in healthcare. I’m strongest where interface decisions need to hold up under scrutiny, especially when trust and credibility matter as much as usability.
Selected impact
- Led a platform redesign that increased user retention by 30% within six months
- Reduced development time by 32% through AI-assisted prototyping and tighter design-to-delivery workflows
- Shipped an AI-powered SaaS MVP in 3 months
- Built design libraries that improved rollout speed by 2×
Experience
Design Engineer & Consultant
Montgo Labs2025 – present
- Client work spanning product design, UX/CRO strategy and production code: ProcurementExpress.com, MESUR, RiseVoice, Kash Rupareliaa
- Shipped painterflow.net and littleheromeals.com on my own, idea to live
- At ProcurementExpress: embedded design, production implementation and instrumented activation experiments, read out honestly at day 14 and day 28
- Run UX audits, product reviews, and workshops to reduce friction and improve alignment
Lead Product Designer
SocialHub (Maloon GmbH)2023 – 2025
- Led design across web and two native apps for an enterprise social-media SaaS used by Deutsche Bahn, ING and Rossmann
- Introduced AI-assisted prototyping and design-to-delivery workflows, reducing development time by 32%
- Built and maintained a production-aligned design library that improved delivery consistency across teams
- Introduced accessibility and WCAG as default standards across core flows and patterns
- Led a full platform redesign that increased user retention by 30% within six months
Senior UI / UX Designer
Teachino GmbH2022 – 2023
- First design hire on an AI lesson planner: owned UX, UI, research and the design system, built alongside the MVP
- Shipped an AI-powered SaaS MVP in 3 months while laying foundations for future scale
- Conducted research and testing with 40+ educators, improving task efficiency by 20%
- Built and documented a design library that accelerated feature rollouts by 2× and reduced design debt
Mentor & Curriculum Writer
CareerFoundry GmbH2019 – 2022
- Mentored 300+ aspiring designers, with 90% of mentees building portfolios that led to full-time roles
- Restructured UX curriculum modules used by 3,000+ learners annually, improving course satisfaction by 18%
- Designed frameworks and exercises aligned with real SaaS product challenges
UX / UI Designer
Leseo · Cornelsen Verlag2017 – 2020
- Sole product designer on a reading platform for primary schools: four interfaces on one design system, weekly classroom research
- 800+ schools across Germany, two education awards and a shortlist place
Earlier experience
- Senior UX / UI ConsultantEqualista GmbH2018 – 2019
- Founding DesignerFiction Taps iOS App2016 – 2019
- UX / UI Designer, freelanceshereen.de2016 – 2022
References
…we were able to ship our product super quickly
StefanFounder, Teachino
…consistently delivered thoughtful, high-quality, and incredibly detailed design solutions
RossFullstack Developer, SocialHub
…one of my biggest references in the industry
PedroSenior UX Researcher, Mentee since 2021