Renata Jachtoma-Mendak
@renatajachtoma-menda
Product Designer and Front-end developer crafting user-focused digital products.
What I'm looking for
I’m a Product Designer and Front-end developer with over six years of experience blending UX/UI, web development and service design to build user-centered, business-aligned digital products. My background in interior design and programming gives me a strong visual sensibility and technical fluency that I apply across projects.
At Llinormatics I led design for Digital Product Passports and a Battery Passport POC showcased at Davos, coordinating with EU officials and blockchain providers to ensure regulatory alignment and stakeholder buy-in. I create research-backed artifacts—user flows, journey maps, service blueprints—and design systems that accelerate development.
I’ve shipped dashboards, data visualizations, and web platforms while improving developer workflows through coded prototypes and reusable UI components. I value accessibility, measurable outcomes (CSAT/NPS improvements), and collaborative, scalable design processes.
Experience
Work history, roles, and key accomplishments
Product Designer
Llinormatics
Oct 2022 - Present (3 years 3 months)
Led design of Digital Product Passports and a Battery Passport POC showcased at Davos, securing clients in the automotive sector and aligning product features with EU ESG directives. Coordinated stakeholders including EU officials and blockchain providers, and delivered research-backed prototypes and scalable design systems.
UX/UI Designer
JLL Technologies
Sep 2021 - Sep 2022 (1 year)
Designed data visualization products and dashboards aligned with a global design system, improving stakeholder clarity and developer handoff by applying design and coding skills. Conducted user research and co-developed a cohesive, scalable design system with international UX teams.
Webmaster
Innogy Polska S.A.
Jun 2020 - Feb 2021 (8 months)
Optimized multiple web platforms, delivering higher-than-expected sales and strong CSAT/NPS scores by implementing front-end features and A/B tests. Used analytics and user insights to improve responsiveness, usability, and campaign performance during rebranding efforts.
Front-End Developer
Environmental Protection Inspectorate
Jan 2019 - Jun 2020 (1 year 5 months)
Developed a waste disposal application (BDO) improving team efficiency and user experience by building reusable UI components, ensuring WCAG accessibility, and integrating REST communication with back-end services. Applied clean code practices to enhance performance and maintainability.
Front-End Developer
ITFS Sp. z o.o.
Nov 2018 - Dec 2018 (1 month)
Contributed to a CRM for a Swiss bank by developing React UI components, integrating with back-end REST APIs, and conducting usability testing to improve application intuitiveness and team iteration speed. Collaborated closely with the Swiss Scrum team to maintain consistency with the style guide.
Interior Designer
Jachtoma Design
Nov 2016 - Sep 2018 (1 year 10 months)
Ran an interior design studio delivering 2D/3D designs and documentation for commercial and private clients across Europe, supervising projects to timely completion and supporting client decision-making with SketchUp and V-Ray visualizations.
Interior Designer
Sodexo Polska
Jun 2014 - Nov 2016 (2 years 5 months)
Designed functional office spaces and managed project execution for clients, coordinating subcontractors and preparing presentations and reports to ensure timely, high-quality delivery and client satisfaction.
Education
Degrees, certifications, and relevant coursework
Certes – School of Digital Accessibility
Auditor WCAG, Digital Accessibility
2025 - 2025
Completed WCAG accessibility auditor training covering Wave, Axe, NVDA, JAWS, VoiceOver and Figma/Adobe XD tools.
UX Alliance
UX PM Level II/III Certificate, User Experience Management
2025 - 2025
Completed UX PM Level II/III certification focused on executing and leading UX initiatives.
INCO Academy
Green Skills Certificate, Sustainable Digital Design
2023 - 2023
Completed Green Skills Certificate on sustainable digital solutions and website carbon awareness.
Coursera / Google
UX Designer Course, User Experience Design
2021 - 2022
Completed UX designer course covering Figma and Balsamiq tools and UX fundamentals.
InfoShare Academy
UX Designer Bootcamp, User Experience Design
2019 - 2020
Completed a UX Designer bootcamp focused on Figma, optimization, Google Analytics and Hotjar.
Białystok University of Technology
Postgraduate Studies, JavaScript Development
2018 - 2019
Postgraduate studies in JavaScript development with over 300 hours of study.
Coders Lab
JavaScript Developer Bootcamp, JavaScript Development
2018 - 2018
Completed a JavaScript Developer React bootcamp with more than 200 hours of study.
University of Ecology and Management in Warsaw
Bachelor's degree, Interior Design
2009 - 2013
Grade: Diploma with honourable mention
Bachelor's degree in Interior Design; graduated with a diploma with honourable mention.
Post-High School Nova Warsaw
Post-high school certificate, Interior Design
2008 - 2009
One-year interior design program focused on AutoCAD and design software.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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