Senior iOS Software Engineer - Vilnius

Requirements

• You have extensive experience building and shipping high-quality iOS applications
• You care deeply about product quality, usability, and delivering exceptional user experiences
• You have strong experience building maintainable, scalable, and testable mobile architectures
• You are comfortable working across large codebases and collaborating across multiple teams
• You have experience mentoring engineers and raising the technical bar within a team
• You have a strong understanding of performance, concurrency, and mobile memory management
• You are comfortable navigating ambiguity and contributing to product and technical discussions
• Experience with privacy, security, encryption, sync systems, or offline-first architectures is a strong plus

Nice to Haves

• Rust experience is a plus, but not required as we continue moving towards a platform-independent Rust logical core communicating with the iOS application via generic interfaces

What You'll Be Doing

• Based in our Vilnius office, you’ll join one of our high-impact product teams across Proton Drive and Proton VPN, helping build privacy-first products used by millions around the world
• Collaborate closely with product, design, and engineers across Proton to build and ship high-quality experiences on Apple platforms
• Help define what “great” looks like for privacy-focused consumer products at scale

Perks and Benefits

• Work that Matters: millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments
• Stock Options: at Proton, we all have the opportunity to be owners of the company
• Technology: you’ll get the right hardware and the right software you need to do your best work
• Learning & Development: we invest in your growth because sharp people make us better
• Employee Benefits: strong health coverage, solid retirement options, generous leave, and wellness support
• In-Person Collaboration: collaborate face-to-face with passionate people in various office locations
• Food: lunch and snacks provided daily in the office
• Transport: public transport, bike allowances, or parking covered
• Flexible Working: own your schedule and set hours that work for you and your team