Alexandr Berest

Lead/Senior Product Designer

Valencia, Valencian Community, Spain

About

Experience

  • Senior Product Designer at BrainRocket
    Nov 2025 - Present · 8 mos

  • League Design Agency (Full-time · 2 yrs 7 mos)
    • UX/UI Design Team Lead
      Apr 2024 - Aug 2025 · 1 yr 5 mos

      Led a team of 5 designers. Owned quality—reviews, clear criteria, and final QA—so interfaces matched intent and clients stayed happy. Scoped work and set risks/ timelines so the team stayed focused. Grew and scaled the team with 1:1s, candid feedback, growth plans, thoughtful onboarding, and clear role/load allocation.Raised craft and streamlined delivery via critiques, mini-lectures, a shared knowledge base, concise playbooks, checklists, templates, and light automation. Represented the team through talks and trainings, sharing our approach to design.

    • UX/UI Designer
      Feb 2023 - Apr 2024 · 1 yr 3 mos

  • Mentor at CASES
    May 2024 - Oct 2024 · 6 mos

    Mentored a group of students during their work on a real project

  • Teacher of UX/UI Design at Beetroot Academy
    Jun 2023 - Dec 2023 · 7 mos

    Taught a UX/UI design course for entry-level specialists

  • Product Designer at Funteq Inc.
    Aug 2020 - Feb 2023 · 2 yrs 7 mos

    Led the full cycle: defined goals and metrics, quickly built MVPs, and made decisions based on research, interviews, and usability tests—not guesses. I worked in short iterations, validated hypotheses with data, and improved key metrics across conversion, activation, and retention, aligning CAC with LTV when needed. I created people-friendly interfaces for mobile and web, blending creative ideas with a systematic approach—flows, prototypes, design systems, and a clean handoff to engineering.