Product Designer-Builder | StellarTech

<p style="min-height:1.5em"><strong>Role:</strong> Product Designer-Builder</p><p style="min-height:1.5em"><strong>Company:</strong> StellarTech</p><p style="min-height:1.5em"><strong>Location:</strong> Remote. StellarTech has offices in Warsaw and Cyprus if you'd like to work from one. The team overlaps 10:00–16:00 CET. Search focus: Poland, Czech Republic, Romania, Serbia, Georgia, Kazakhstan, Armenia, Cyprus, Dubai and the wider Middle East; Western Europe is also possible. We can't consider Russia, Belarus or Ukraine at the moment.</p><p style="min-height:1.5em"><strong>Job Type:</strong> Full-time, B2B contract</p><p style="min-height:1.5em"><strong>Compensation:</strong> €4,500–5,500/month gross, paid in USD</p><h2>About StellarTech</h2><p style="min-height:1.5em">StellarTech is a self-funded multi-app company that launches consumer mobile products in different domains. It is profitable, moves at startup pace and is aiming for $1B in revenue.</p><p style="min-height:1.5em">You would join Smartimi, the company's biggest and most mature app, as the design partner of its PM, Darya. Around you: a content team that builds templates, a product analyst, engineers and QA. The Head of Product has a UX background himself. The team speaks Russian; the users speak English.</p><h2>What you are expected to do:</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Take raw problems, ideas and initiatives and turn them into flows, prototypes and shipped UI for a consumer mobile app.</p></li><li><p style="min-height:1.5em">Work as a pair with the PM, and own some initiatives fully, from idea to release to reading the numbers.</p></li><li><p style="min-height:1.5em">Work directly with engineers and review the build before it ships.</p></li><li><p style="min-height:1.5em">Run A/B tests, read the results in Amplitude and plan the next iteration.</p></li><li><p style="min-height:1.5em">Talk to users: run interviews in English and launch quick surveys.</p></li><li><p style="min-height:1.5em">Build features yourself with vibe-coding or no-code tools when that's faster. The team has a way to test and ship them.</p></li></ul><p style="min-height:1.5em">Marketing banners and funnels are handled by a separate team, so they are not part of this role.</p><h2>What you need to succeed:</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">3+ years in product design, with at least 2 (ideally 3) in consumer mobile apps. B2B-only backgrounds won't be a fit.</p></li><li><p style="min-height:1.5em">Strong, modern mobile UX and UI craft. The Head of Product looks closely at portfolios, so yours should show it.</p></li><li><p style="min-height:1.5em">Ownership: when a problem lands on your desk, you carry it through without waiting to be told the next step.</p></li><li><p style="min-height:1.5em">Product thinking: you care about product metrics and experiments, not only the interface.</p></li><li><p style="min-height:1.5em">Experience running user interviews. Usability testing and research methods can be learned on the job.</p></li><li><p style="min-height:1.5em">English at B2–C1 and Russian.</p></li><li><p style="min-height:1.5em">Clear, structured communication, including when you're thinking out loud with th