Filip Kjamilov

Senior Application Engineer

Filip Kjamilov

Building scalable iOS systems, beautifully.

I build scalable iOS systems with SwiftUI, strong architecture, and accessibility at the core. I help teams move faster without sacrificing quality.

Who I Am

About

I am a Senior Application Engineer with ownership over architecture, design systems, and accessibility in large-scale production apps used by millions of users. I operate at the intersection of product, design, and engineering, turning complex requirements into maintainable systems.

Career

Experience

Senior Application Engineer · rebuy

Jul 2026 – Present · Berlin, Germany · Remote
  • Promoted from iOS Engineer in recognition of architectural ownership and cross-platform impact
  • Extending architecture and design-system leadership beyond iOS to the wider application layer

iOS Engineer · rebuy

Jan 2023 – Jul 2026 · Berlin, Germany · Remote
  • Architectural decision-making for a large-scale iOS recommerce app
  • SwiftUI adoption and internal design system leadership
  • Accessibility ownership across new and existing features
  • CI/CD optimization with Bitrise and self-hosted Apple Silicon runners
  • Cross-platform collaboration (Android, Backend, Product, Design)

Software Engineer · Netcetera

Feb 2021 – Sep 2022 · Skopje, North Macedonia
  • Development of modular mobile banking SDKs
  • Clean architecture, testing strategy, and CI improvements
  • OIDC authentication and security-sensitive features
  • Mentorship of interns

Ownership

What I Own

SwiftUI Design Systems

Defined do's & don'ts, reusable components, and long-term evolution strategy.

Accessibility Leadership

VoiceOver, Dynamic Type, contrast, semantics — built in, not bolted on.

Architecture Decisions

Clear boundaries, testability, and refactor-friendly systems.

Release Safety

CI/CD, test strategy, and fast feedback loops.

Automation

CI/CD pipelines, internal tooling, and scripts that remove repetitive engineering work.

Team Energy

I raise the bar while keeping the team motivated and aligned.

Selected Work

Projects & Products

rebuy iOS App

Large-scale recommerce platform serving millions of users. I contribute to architecture, SwiftUI adoption, accessibility, CI/CD improvements, and cross-team alignment.

View on App Store

ToPay Mobile Wallet (Netcetera)

Modular digital banking SDK supporting secure authentication, payments, and card management. Strong focus on clean architecture, testing, and long-term maintainability.

Product Overview

Indie Dev

Independent Apps

Self-directed products — designed, built, and shipped end-to-end, from idea to the App Store.

WalletLess

SwiftUI app that keeps every loyalty card in one place — sorted by location, fully usable offline, and available in three languages.

WalletLess dashboard screen WalletLess loyalty card screen

Costivo

SwiftUI app for craftsmen that turns materials, labor, and hourly or fixed rates into an instant, shareable cost estimate.

Costivo jobs list screen Costivo materials price database screen