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Chirp
2022 · Web · Ad platform
Web platform for serving ads on the US market. UX/UI at Bravo Systems / Propel Media.
Aleksandar Žeželj — Senior Product Designer
Complex problems,made clear.
12 years of experience— still starting with why.
The harder a decision is to undo,the stronger the evidence should be.
Until November 2026,Senior Product Designer at OddBytes, Los Angeles.Now looking for the next team worth joining.
Banja Luka --:--
Los Angeles --:--
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Senior Product Designer
Aleksandar Žeželj
Senior Product Designer with 12 years of solving complex problems with polished, neat, data-backed solutions and deliverables — balancing what the business needs against what the person using it actually wants.
Solid history of complementary work with other experience designers, developers, stakeholders and business leaders. Comfortable leading cross-functional teams, and comfortable going to bat for the user in a boardroom — most of the work is deciding what to leave out.
Product design experience
12+ years, discovery to delivery
A finding counts when it survives seven checks.
Interviews, prototype tests and behavioural signals, synthesised into assumptions, risks and the next thing worth learning.
Complex requirements in, one clear path out.
User flows, information architecture and interactive prototypes across e-commerce, subscription management, admin tools, social platforms and 3D configuration.
Every pixel of a button is a decision. This one is yours — press it.
Responsive interfaces, design systems, reusable components and brand identities, from early concept to working product.
Users, the business and engineering pull three ways. The work is keeping them on one heading.
Led UX/UI from discovery through delivery. Proposed clearer UX/UI responsibilities and recurring peer reviews to raise the whole team's design work.
AI practice
How I work with it
AI in the loop, judgement on top.
A bad question asked faster is still a bad question.
- The model
- Nothing yet.
- Me
- The problem, the user, the constraint, and the bar it has to clear.
It widens the field. I set the limits.
- The model
- Directions, references, copy variants, the edge cases I would miss.
- Me
- The limits, so the options are worth comparing.
It argues back. It doesn’t get a vote.
- The model
- Counter-arguments, when I ask for them.
- Me
- Cuts nine of ten, and checks what is left against the evidence.
It does the typing. I read every version.
- The model
- Prototypes, front-end, specs. This site was built that way.
- Me
- Reviews every version and sends back what isn’t right.
What ships, and what happens after, is mine.
- The model
- —
- Me
- The outcome, and the next decision it leads to.
In daily use Claude, Claude Cowork, ChatGPT, Gemini, Perplexity, Cursor, v0, Lovable, Midjourney, Firefly, Runway.
With the team Figma, Jira, Confluence, Slack, Mixpanel.
Principles
Ten rules I work by
The harder a decision is to undo, the stronger the evidence.
Commitment
Validation is a threshold, not a promise of certainty.
Validation
The decision sets the bar.
The bar
Start with the biggest unknown, not the next stage.
Risk
Look for what repeats, what holds, and what doesn’t fit.
Pattern
Quantity matters less than what reduces uncertainty.
Signal
Decision-ready means known enough, not certain.
Threshold
Trust it. Read it. Decide. Locate the risk.
The square
Every piece of evidence has a home: desirable, viable, feasible.
Value
Evidence gives the next move a name.
Next move
Learned on real products. Sharpened at Gardner Expedition Co., 2026.
Apps
Five apps, concept to shipped interface
An app gets one thumb and two seconds to make sense.
Apps
Trippin'
Travel social network. A UX and UI case study for a new way of travelling and of talking about it. iOS and Android.
Eureka
Shopping assistant. Discover products, find the best price, and build a personalised shopping experience. Lead UX/UI. iOS and web.
RushB
Restaurant assistant. Smarter discovery of meals, and better communication between guests and staff. Web, Android and iOS.
Vihor PRO
Social network for extreme athletes. Share achievements, measure them, and find people with the same obsession. Built in Ionic.
Fireplan
Community app for managing members and races, tracking revenue and sorting data. Android and iOS.
1/5
Web & platforms
Four platforms, and what they had to carry
A platform is judged on its hundredth page — not its first.
Web & platforms
02 / 04
Athletics New Zealand
2021 · Web · CMS
CMS for the national agency of New Zealand — tracking members, data and revenue.
03 / 04
One Time
2021 · Web · CMS
Community CMS tracker. Managing members and races, tracking revenue and sorting data.
04 / 04
Radosnica
2020 · Web · Presentation
Web presentation for a group providing support and training for pregnant women.
Branding
Thirteen names, and what the work was
A mark has to hold at 16 pixels and on the side of a van.
Brands
Career
roles since 2014
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2014 — Present FreelanceUX/UI, Branding Prijedor — Banja Luka, BiH
Brand identities for 18 clients, plus web presentations.
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2014 Carlos SignsGraphic Designer / Technical Support Prijedor, BiH
Graphic design and technical support.
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2016 DAP SolutionsLead Graphic Designer Banja Luka, BiH
Branding and product design for food products.
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2017 — 2019 IT TeslaUX/UI & Graphic Designer Sydney, Australia
Product design and lead UX/UI on the Vihor app.
Interviews and prototype tests with the athletes it was built for.
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2017 — 2019 Vihor Pro LtdLead UX/UI Designer Melbourne, Australia
Vihor PRO: a social network for extreme athletes. Share and measure achievements, find people with the same obsession. Built in Ionic.
Interviewed athletes and tested prototypes with them; the users decided what made the cut.
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2018 CS FormUX/UI Designer Banja Luka, BiH
UI components and UX for Ionic applications.
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2019 — 2021 CS Form & COOP LiviqueLead UX/UI, furniture configurator Banja Luka, BiH
Led UX/UI for a 3D furniture configurator built in Unity.
Prototypes in front of real users, then interviews: the flow followed what they struggled with, not what we assumed.
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2021 — 2022 Bravo Systems / Propel MediaUX on Chirp / Co-Lead on Eureka Banja Luka, BiH
Chirp: UX/UI for an ad platform on the US market.
Eureka: co-led a shopping assistant for iOS and web. Discovery, best-price search, personalisation.
User interviews and prototype tests on both.
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2022 — Nov 2026 OddBytesSenior Product Designer Los Angeles, USA
End-to-end product design with product managers, engineers and QA, in a hybrid US/EU team.
Interviews and prototype tests turned into user needs, assumptions and priorities; experiment variants refined through feedback.
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Next Your team?Senior Product Designer, from December 2026. Write the next line → Remote, from Banja Luka
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