Senior iOS Engineer

Join Zūm, a mission-driven startup focused on transforming student transportation. As a Senior iOS Engineer, you'll lead front end technical direction, make architecture decisions, and mentor a team of engineers in Ukraine. You'll work closely with local Product and Engineering teams, own the front end behind our dispatch, school, vendor, and maps portals, and drive the use of AI tooling in development. Enjoy benefits like unlimited vacation, medical, dental, and vision coverage, and a fun office culture.

Set technical direction, make front end architecture decisions, and lead a team of engineers in Ukraine while still writing code and shipping features.

We're looking for an engineer who leads through the work itself, not just the title. Someone who can absorb a tech lead role and immediately make the team better, while staying comfortable that product direction, at least for now, comes primarily from our PM and backend teams

This isn't a fit for someone who wants full front end product ownership from day one. It's a fit for someone who finds real satisfaction in technical craft, mentorship, and making a distributed team sharper, and who's excited to bring AI tooling into how we build

Responsibilities

• Own the front end behind dispatch, school, vendor, and maps portals, ensuring technical quality and execution.
• Mentor and technically lead engineers on the Ukraine-based team, working within overlapping HQ hours rather than offshore shifts.

Requirements

• Strong, hands-on experience with Angular; you should be able to step into our stack and start contributing quickly
• Experience with reactive UI patterns and RxJS or equivalent observables-based architecture
• Comfort building and owning enterprise, data-dense web applications, not consumer products or analytics dashboards
• Experience stepping into or consolidating a tech lead function previously shared across multiple people (preferred)
• Genuine interest in AI-driven automation, with real opinions on where a team could move faster
• Experience with mobile web, not native mobile, not React Native (preferred)
• Senior+ or Staff-level front end engineering experience, with a track record of technical leadership, not just individual contribution
• Domain experience in mobility, logistics, fleet, or other operationally complex enterprise software
• Experience with mapping or GPS-adjacent UI, relevant to our maps portal surface
• Experience collaborating closely with design in Figma-based workflows

Preferred

• Startup background (preferred; a plus, though not a strict requirement)
• Experience technically leading or mentoring other engineers, ideally across a distributed team

Pay

USD 200,000 - 240,000