Marina Braholka

Product Designer with 10+ years of experience in the entire lifecycle of product design within startups, fintechs, SaaS, B2B, and B2C. Demonstrated capability of designing products from scratch through the final stages of delivery with high quality in terms of flows, wireframes, prototyping, and deliverables, along with great craftsmanship in visual and interaction design. Experienced in creating and maintaining design systems, designing from user insights and metrics, and operating independently.

Senior Product Designer at Dr. Cash (2024-08 – 2025-08)

Fast-growing Brazilian health care fintech lending platform offering personal loans and lease products to 200,000+ monthly active users.

• Led end-to-end product design of key user journeys on a fast-growing fintech lending platform from concept and wireframes through high-fidelity prototypes and production assets — balancing user needs, business goals, and engineering constraints.
• Drove measurable outcomes through design: boosted monthly loan applications by 20% via redesigned user journeys and conversion-focused interaction design, validated through A/B testing.
• Owned the design of core in-app features serving 200,000+ monthly users; integrated beta testing feedback to increase user engagement by 8%+ and significantly reduce support tickets.
• Built, scaled, and governed a reusable, accessible design system (WCAG 2.1/2.2 AA), refining patterns, improving consistency, and reducing front-end development time by 15%.
• Collaborated closely with product managers, engineers, and cross-functional partners to shape problem definitions, explore solutions, and ship polished product outcomes.
• Iterated continuously on shipped work using customer feedback and product metrics, directly improving user satisfaction (NPS/CSAT) across core product flows.
• Mentored designers and drove 100% design system adoption across the team.

Career Break at Personal Health (2023-08 – 2024-08)

Career break for personal health reasons.

Senior Product Designer at Clearly (EssilorLuxottica) (2022-08 – 2023-08)

Canadian online eyewear retailer (subsidiary of EssilorLuxottica) — high-traffic B2C e-commerce platform with AR-assisted virtual try-on for millions of customers.

• Led end-to-end design of key product experiences, from interaction models and wireframes to high-fidelity prototypes and production-ready assets, for a high-traffic B2C e-commerce platform.
• Translated user insights and qualitative research into elegant interaction solutions; drove a 16% increase in user engagement with product pages and reduced support inquiries by 11%.
• Shipped an AR-assisted try-on feature that reduced product returns and refund requests by 21% by improving purchase confidence through better product visualization.
• Contributed to a major design system migration, improving pattern consistency and streamlining design-to-engineering workflows across the platform.
• Partnered closely with engineers during staging and production QA to ensure polished, pixel-accurate implementation.

Product Designer at TBA Digital (2021-02 – 2022-07)

Vancouver-based digital agency delivering UX and product design for enterprise clients including EssilorLuxottica US, Abbott, Virbac, Boston Scientific, and Mirrortrip.

• Delivered end-to-end product design flows, wireframes, and high-fidelity prototypes to production assets for five enterprise clients within the first six months in a fast-paced agency environment with high autonomy.
• Designed and shipped features for native iOS, Android, and tablet applications in close collaboration with cross-functional engineering and product teams.
• Created visual concepts, storyboards, and design assets for complex digital experiences across web and mobile platforms.

Product Designer at Yandeh (2020-12 – 2021-03)

Brazilian B2B e-commerce connecting retailers and suppliers across multiple product categories.

• Joined an early-stage B2B startup and independently built a scalable design system from the ground floor, ensuring UI consistency across web and mobile, driving an 8% increase in monthly conversions.
• Standardized design components and processes, reducing development time by 50% and significantly improving design-to-engineering handoff efficiency.
• Redesigned the B2B portal dashboard and retailer-provider flows, increasing retailer orders by 6% in the first month post-launch through improved interaction design.

Product Designer at TCP (2018-09 – 2019-09)

Brazilian HR and workforce management SaaS platform serving 4,200+ organizations; placed via Hero99 staffing agency. Sole designer collaborating with a team of 12 software developers.

• Led iterative design sprints using agile methodologies, delivering 3+ user-centered solutions for a platform serving 4,200+ organizations, collaborating with a cross-functional team of 12 software developers as the sole designer.
• Synthesized insights from 150+ user interviews, surveys, and usability testing sessions to directly inform three major product feature enhancements with measurable engagement improvements.
• Drove a 15% increase in platform engagement scores by establishing a structured user feedback loop and transforming the lowest-rated feature into a user favorite through rapid iteration.
• Produced comprehensive user flows, wireframes, and high-fidelity prototypes guided by the Salesforce Lightning Design System, driving design consistency and quality at scale.

UX/UI Designer at Midiaweb (2018-01 – 2018-09)

Brazilian digital agency designing web and mobile products for startups and SMBs.

• Designed and iterated on user-centered solutions for web and mobile platforms, increasing the App Store rating by 0.4 stars through user-testing-driven improvements.
• Produced wireframes and high-fidelity prototypes to meet client objectives, collaborating closely with cross-functional teams to deliver consistent, polished digital experiences.

Diploma in Web Development – Cornerstone International Community College

Diploma in User Experience – Red Academy

Degree in Graphic Design – Federal University of Technology of Paraná