Intro
Career path
Explore designs
Case studies
Education & certifications
Hi,
I’m
Roman
Janczewski,
a senior
product
designer
.
Currently
based
in
Barcelona
,
Spain.
I design
clear,
effective UX
that
improves
retention
and
scales
products
from
0
1
and beyond.
With
9+
years
of experience
in
Fintech
,
Marketplace
and
Healthtech
,
I’m
to new
opportunities.
Career path
Let’s talk!
I’m open to new opportunities
Download CV
Tabby
May 2023 – Present · Senior product designer
The fastest-growing BNPL platform in the Middle East, backed by Sequoia and valued at over $1B. Trusted by 2M+ customers and 3,000+ top retailers like IKEA, Adidas, Shein and Apple. Responsible for post-purchase flows, improved onboarding and verification, and created reusable UX patterns that supported Tabby’s rapid scale-up.
tabby.ai
Helper
Apr 2023 – Sep 2023 · Product design mentor
A career development platform for designers. I mentored dozens of designers through portfolio building, product thinking, and test tasks helping many land roles at top tech companies.
gohelper.io
Avito
Jun 2021 – May 2023 · Senior product designer
The #1 marketplace in Russia and one of the largest in the world, connecting 50M+ people every month. A platform at the scale of Craigslist + eBay, shaping how millions buy, sell, and find opportunities. I designed core buyer and seller flows, trust & safety features, and scalable solutions that shaped how millions of people use the app every day.
avito.ru
SberHealth (ex. docdoc)
Jun 2019 – Jun 2021 · Senior product designer
Russia’s leading digital health ecosystem with 15M+ users. Transforming healthcare by enabling online bookings, telemedicine and fully digital medical records. I led the design of the telemedicine service from concept to launch, and redesigned appointment and medical record flows to make healthcare access faster and more transparent for millions.
sberhealth.ru
Visitech
Dec 2017 – Jun 2019 · UX/UI designer
Provider of industrial ERP and safety solutions, used by enterprise clients like Gazprom and MMK. I designed multi-role workflows for adaptive web & Android interfaces. Also created a reusable design system for enterprise use.
visitech.ru
Megafon
Mar 2016 – Nov 2016 · UI designer
I redesigned MegaFon Radar, a family geolocation service used by millions of subscribers, making it more intuitive and engaging.
megafon.ru
Explore designs
Coming soon
Case studies
Doctor’s workspace
Mapped the full doctor-side journey — from appointment scheduling to post-consultation notes — identifying drop-offs and UX bottlenecks. Conducted usability testing, deep funnel analysis, and interviews with 15+ doctors to uncover pain points in real workflows. Worked closely with PMs and analysts to prioritize the most impactful flows: session start, patient cards, writing medical summaries, and closing consultations.
Full case study
coming soon
Education & certifications
Higher School of Economics — Economics
2011 – 2016 · Moscow
Graduated from one of Russia’s top research universities, known for strong training in systems thinking, data analysis, and strategic decision-making. This background shaped my ability to approach product design with business awareness, analytical thinking, and user impact in mind.
hse.ru/en
HSE Art & Design
School — UX/UI design2016 – 2017 · Moscow
Completed an intensive program focused on interface design, user research, and product thinking. Built a strong foundation in visual systems, design process, and human-centered methodology — all applied through hands-on projects in Figma and prototyping tools.
en.design.hse.ru
École 42 (School 21)
2017 – 2019 · Moscow
Completed a full-time peer-to-peer coding program at School 21, the Russian campus of the international École 42 network. The curriculum focused on systems thinking, low-level programming, and project-based learning — with no teachers, no grades, and a strong emphasis on autonomy, collaboration, and problem-solving.
42.fr/en
GoPractice
2020 – 2022 · Remote
Completed an immersive simulation-based course focused on product growth, retention, and data-driven decision-making. Learned to interpret product metrics, run experiments, and use tools like Amplitude and SQL to inform UX and product strategy.
gopractice.io
Duolingo English Test — C1
Nov, 2023 · English proficiency certificate
certs.duolingo.com
Intro
Career path
Explore designs
Case studies
Education & certifications
Hi,
I’m
Roman
Janczewski,
a senior
product
designer
.
Currently
based
in
Barcelona
,
Spain.
I design
clear,
effective UX
that
improves
retention
and
scales
products
from
0
1
and beyond.
With
9+
years
of experience
in
Fintech
,
Marketplace
and
Healthtech
,
I’m
to new
opportunities.
Career path
Let’s talk!
I’m open to new opportunities
Download CV
Tabby
May 2023 – Present · Senior product designer
The fastest-growing BNPL platform in the Middle East, backed by Sequoia and valued at over $1B. Trusted by 2M+ customers and 3,000+ top retailers like IKEA, Adidas, Shein and Apple. Responsible for post-purchase flows, improved onboarding and verification, and created reusable UX patterns that supported Tabby’s rapid scale-up.
tabby.ai
Helper
Apr 2023 – Sep 2023 · Product design mentor
A career development platform for designers. I mentored dozens of designers through portfolio building, product thinking, and test tasks helping many land roles at top tech companies.
gohelper.io
Avito
Jun 2021 – May 2023 · Senior product designer
The #1 marketplace in Russia and one of the largest in the world, connecting 50M+ people every month. A platform at the scale of Craigslist + eBay, shaping how millions buy, sell, and find opportunities. I designed core buyer and seller flows, trust & safety features, and scalable solutions that shaped how millions of people use the app every day.
avito.ru
SberHealth (ex. docdoc)
Jun 2019 – Jun 2021 · Senior product designer
Russia’s leading digital health ecosystem with 15M+ users. Transforming healthcare by enabling online bookings, telemedicine and fully digital medical records. I led the design of the telemedicine service from concept to launch, and redesigned appointment and medical record flows to make healthcare access faster and more transparent for millions.
sberhealth.ru
Visitech
Dec 2017 – Jun 2019 · UX/UI designer
Provider of industrial ERP and safety solutions, used by enterprise clients like Gazprom and MMK. I designed multi-role workflows for adaptive web & Android interfaces. Also created a reusable design system for enterprise use.
visitech.ru
Megafon
Mar 2016 – Nov 2016 · UI designer
I redesigned MegaFon Radar, a family geolocation service used by millions of subscribers, making it more intuitive and engaging.
megafon.ru
Explore designs
Coming soon
Case studies
Doctor’s workspace
Mapped the full doctor-side journey — from appointment scheduling to post-consultation notes — identifying drop-offs and UX bottlenecks. Conducted usability testing, deep funnel analysis, and interviews with 15+ doctors to uncover pain points in real workflows. Worked closely with PMs and analysts to prioritize the most impactful flows: session start, patient cards, writing medical summaries, and closing consultations.
Full case study
coming soon
Education & certifications
Higher School of Economics — Economics
2011 – 2016 · Moscow
Graduated from one of Russia’s top research universities, known for strong training in systems thinking, data analysis, and strategic decision-making. This background shaped my ability to approach product design with business awareness, analytical thinking, and user impact in mind.
hse.ru/en
HSE Art & Design
School — UX/UI design2016 – 2017 · Moscow
Completed an intensive program focused on interface design, user research, and product thinking. Built a strong foundation in visual systems, design process, and human-centered methodology — all applied through hands-on projects in Figma and prototyping tools.
en.design.hse.ru
École 42 (School 21)
2017 – 2019 · Moscow
Completed a full-time peer-to-peer coding program at School 21, the Russian campus of the international École 42 network. The curriculum focused on systems thinking, low-level programming, and project-based learning — with no teachers, no grades, and a strong emphasis on autonomy, collaboration, and problem-solving.
42.fr/en
GoPractice
2020 – 2022 · Remote
Completed an immersive simulation-based course focused on product growth, retention, and data-driven decision-making. Learned to interpret product metrics, run experiments, and use tools like Amplitude and SQL to inform UX and product strategy.
gopractice.io
Duolingo English Test — C1
Nov, 2023 · English proficiency certificate
certs.duolingo.com
Intro
Career path
Explore designs
Case studies
Education & certifications
Hi,
I’m
Roman
Janczewski,
a senior
product
designer
.
Currently
based
in
Barcelona
,
Spain.
I design
clear,
effective UX
that
improves
retention
and
scales
products
from
0
1
and beyond.
With
9+
years
of experience
in
Fintech
,
Marketplace
and
Healthtech
,
I’m
to new
opportunities.
Career path
Let’s talk!
I’m open to new opportunities
Download CV
Tabby
May 2023 – Present · Senior product designer
The fastest-growing BNPL platform in the Middle East, backed by Sequoia and valued at over $1B. Trusted by 2M+ customers and 3,000+ top retailers like IKEA, Adidas, Shein and Apple. Responsible for post-purchase flows, improved onboarding and verification, and created reusable UX patterns that supported Tabby’s rapid scale-up.
tabby.ai
Helper
Apr 2023 – Sep 2023 · Product design mentor
A career development platform for designers. I mentored dozens of designers through portfolio building, product thinking, and test tasks helping many land roles at top tech companies.
gohelper.io
Avito
Jun 2021 – May 2023 · Senior product designer
The #1 marketplace in Russia and one of the largest in the world, connecting 50M+ people every month. A platform at the scale of Craigslist + eBay, shaping how millions buy, sell, and find opportunities. I designed core buyer and seller flows, trust & safety features, and scalable solutions that shaped how millions of people use the app every day.
avito.ru
SberHealth (ex. docdoc)
Jun 2019 – Jun 2021 · Senior product designer
Russia’s leading digital health ecosystem with 15M+ users. Transforming healthcare by enabling online bookings, telemedicine and fully digital medical records. I led the design of the telemedicine service from concept to launch, and redesigned appointment and medical record flows to make healthcare access faster and more transparent for millions.
sberhealth.ru
Visitech
Dec 2017 – Jun 2019 · UX/UI designer
Provider of industrial ERP and safety solutions, used by enterprise clients like Gazprom and MMK. I designed multi-role workflows for adaptive web & Android interfaces. Also created a reusable design system for enterprise use.
visitech.ru
Megafon
Mar 2016 – Nov 2016 · UI designer
I redesigned MegaFon Radar, a family geolocation service used by millions of subscribers, making it more intuitive and engaging.
megafon.ru
Explore designs
Coming soon
Case studies
Education & certifications
Higher School of Economics — Economics
2011 – 2016 · Moscow
Graduated from one of Russia’s top research universities, known for strong training in systems thinking, data analysis, and strategic decision-making. This background shaped my ability to approach product design with business awareness, analytical thinking, and user impact in mind.
hse.ru/en
HSE Art & Design School — UX/UI design
2016 – 2017 · Moscow
Completed an intensive program focused on interface design, user research, and product thinking. Built a strong foundation in visual systems, design process, and human-centered methodology — all applied through hands-on projects in Figma and prototyping tools.
en.design.hse.ru
École 42 (School 21)
2017 – 2019 · Moscow
Completed a full-time peer-to-peer coding program at School 21, the Russian campus of the international École 42 network. The curriculum focused on systems thinking, low-level programming, and project-based learning — with no teachers, no grades, and a strong emphasis on autonomy, collaboration, and problem-solving.
42.fr/en
GoPractice
2020 – 2022 · Remote
Completed an immersive simulation-based course focused on product growth, retention, and data-driven decision-making. Learned to interpret product metrics, run experiments, and use tools like Amplitude and SQL to inform UX and product strategy.
gopractice.io
Duolingo English Test — C1
Nov, 2023 · English proficiency certificate
certs.duolingo.com
Intro
Career path
Explore designs
Case studies
Education & certifications
Hi,
I’m
Roman
Janczewski,
a senior
product
designer
.
Currently
based
in
Barcelona
,
Spain.
I design
clear,
effective UX
that
improves
retention
and
scales
products
from
0
1
and beyond.
With
9+
years
of experience
in
Fintech
,
Marketplace
and
Healthtech
,
I’m
to new
opportunities.
Career path
Let’s talk!
I’m open to new opportunities
Download CV
Tabby
May 2023 – Present · Senior product designer
The fastest-growing BNPL platform in the Middle East, backed by Sequoia and valued at over $1B. Trusted by 2M+ customers and 3,000+ top retailers like IKEA, Adidas, Shein and Apple. Responsible for post-purchase flows, improved onboarding and verification, and created reusable UX patterns that supported Tabby’s rapid scale-up.
tabby.ai
Helper
Apr 2023 – Sep 2023 · Product design mentor
A career development platform for designers. I mentored dozens of designers through portfolio building, product thinking, and test tasks helping many land roles at top tech companies.
gohelper.io
Avito
Jun 2021 – May 2023 · Senior product designer
The #1 marketplace in Russia and one of the largest in the world, connecting 50M+ people every month. A platform at the scale of Craigslist + eBay, shaping how millions buy, sell, and find opportunities. I designed core buyer and seller flows, trust & safety features, and scalable solutions that shaped how millions of people use the app every day.
avito.ru
SberHealth (ex. docdoc)
Jun 2019 – Jun 2021 · Senior product designer
Russia’s leading digital health ecosystem with 15M+ users. Transforming healthcare by enabling online bookings, telemedicine and fully digital medical records. I led the design of the telemedicine service from concept to launch, and redesigned appointment and medical record flows to make healthcare access faster and more transparent for millions.
sberhealth.ru
Visitech
Dec 2017 – Jun 2019 · UX/UI designer
Provider of industrial ERP and safety solutions, used by enterprise clients like Gazprom and MMK. I designed multi-role workflows for adaptive web & Android interfaces. Also created a reusable design system for enterprise use.
visitech.ru
Megafon
Mar 2016 – Nov 2016 · UI designer
Redesigned Radar (geo-tracking service), making it mobile-first and fully responsive
megafon.ru
Explore designs
Coming soon
Case studies
Education & certifications
Higher School of Economics — Economics
2011 – 2016 · Moscow
Graduated from one of Russia’s top research universities, known for strong training in systems thinking, data analysis, and strategic decision-making. This background shaped my ability to approach product design with business awareness, analytical thinking, and user impact in mind.
hse.ru/en
HSE Art & Design School — UX/UI design
2016 – 2017 · Moscow
Completed an intensive program focused on interface design, user research, and product thinking. Built a strong foundation in visual systems, design process, and human-centered methodology — all applied through hands-on projects in Figma and prototyping tools.
en.design.hse.ru
École 42 (School 21)
2017 – 2019 · Moscow
Completed a full-time peer-to-peer coding program at School 21, the Russian campus of the international École 42 network. The curriculum focused on systems thinking, low-level programming, and project-based learning — with no teachers, no grades, and a strong emphasis on autonomy, collaboration, and problem-solving.
42.fr/en
GoPractice
2020 – 2022 · Remote
Completed an immersive simulation-based course focused on product growth, retention, and data-driven decision-making. Learned to interpret product metrics, run experiments, and use tools like Amplitude and SQL to inform UX and product strategy.
gopractice.io
Duolingo English Test — C1
Nov, 2023 · English proficiency certificate
certs.duolingo.com