Serious Development is hiring a Fractional Product Systems Designer (Web + iOS) - Remote (U.S. Based)

Part-time: 20-30 hours per month Details: Competitive hourly rate (Senior, Fractional). Long-term engagement if mutually successful Job ID: 26FRA301 Fractional Product Systems Designer (Web + iOS) - Remote (U.S.- based) Overview Serious Development builds internal business applications at speed using: v0 for prototyping, Angular + PrimeNG for implementation, Native iOS apps that feel like iOS, not web-on-a-phone. We are seeking a Fractional Product Systems Designer (Web + iOS) to design how our products behave over time. Why This Role Exists We build internal business applications at speed using: • v0 for prototyping • Angular + PrimeNG for implementation • Native iOS apps that must feel like iOS, not web-on-a-phone As our velocity increased, traditional screen-based design became unnecessary. What did become necessary is system-level UX ownership. This role exists to ensure our products remain: • Predictable • Consistent • Native to their platforms • Easy to learn and hard to misuse You will not be designing every screen. You will be designing how the product behaves over time. Who You Are Required • Senior-level product or systems designer • Experience with internal or enterprise applications • Strong systems thinking; comfortable defining rules and constraints • Deep familiarity with iOS as a platform (not just mobile UI) • Comfortable challenging PMs and saying “don’t ship that” • Pragmatic, opinionated, and not precious about visuals Strong Plus • Experience cleaning up inconsistent products • Familiarity with component-based design systems • Experience working with engineers directly • Prior fractional or advisory roles Red Flags (for us) • Portfolio-first, system-light background • Strong preference for redesigns over convergence • Focus on “delight” over clarity and predictability • Reliance on Figma as the primary output What You’ll Be Responsible For Product-wide UX coherence • Own interaction patterns across the product • Ensure similar problems are solved the same way • Reduce inconsistency as new modules are added • Prevent UX drift as multiple PMs and teams ship in parallel Working within existing products • Audit current applications and patterns • Identify what already works and should be preserved • Drive convergence — not redesign-for-the-sake-of-redesign • Respect user muscle memory Web UX (Angular + PrimeNG) • Define how PrimeNG components are used (tables, forms, filters, modals) • Establish behavioral standards: • States • Errors • Permissions • Progressive disclosure • Prevent “almost-the-same” component variants iOS UX (Native-first) • Ensure strict alignment with Apple Human Interface Guidelines • Catch web/Android patterns leaking into iOS • Enforce native navigation, gestures, and control usage • Prioritize platform correctness over internal consistency when they conflict Partnering with PMs • Review v0 prototypes and early implementations • Provide fast, opinionated feedback • Help PMs reason through UX tradeoffs • Establish clear guardrails PMs can confidently operate within What You Will Not Be Doing • Pixel-perfect mock production • Designing every feature or screen • Maintaining Figma parity with code • Visual branding or marketing design • Creating handoff artifacts for engineers • If your default output is screens, this is not the right role. What Success Looks Like • UX feels consistent across modules and platforms • PMs move fast without inventing new patterns • Fewer usability questions from users • Faster onboarding with less training • No “why does this work differently over here?” moments • No large-scale UX rewrites six months later How You’ll Work • Review-heavy, not production-heavy • Embedded early in feature thinking, not late-stage polish • Prefer rules, patterns, and written guidance over visuals • Use Figma only when a concept cannot be expressed clearly in text or prototypes • Code and prototypes are the source of truth.