Senior Mobile SDK Engineer

Remote · Full-time · Senior

Why does MWDN rock?

MWDN connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We aim to ensure our employees enjoy a rewarding and secure experience while collaborating with prestigious international clients.

Here’s what you can expect when you get employed by MWDN:

  • Security first. We vet our clients to eliminate risks, ensuring reliability and timely payments for your hard work—no fraud or unforeseen events here!
  • Career support. If a match isn't right, we're here for you. We actively assist our employees in finding new opportunities that fit their skills and aspirations.
  • Legal assistance. We provide guidance on legal matters (e.g., opening and administering your private entrepreneur account, taxes, army enrollment, etc.).
  • Professional development. We offer English courses and other engaging activities, including team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region by DOU, and we pride ourselves on our transparency and commitment to our team. Curious to learn more? Discover what our employees say about us in their DOU reviews: MWDN reviews.

What is your new project?

  • Domain: Identity and Access Management (IAM) software
  • Location: Israel
  • Company size: 200-500 employees
  • Founded in: 2014

What makes this project exciting?

Are you ready to join a game-changing force in identity and access management? 

Our client is revolutionizing the way enterprises protect user identities in a passwordless world. You'll be working at the intersection of cutting-edge biometrics, behavioral analytics, and next-gen identity orchestration - helping the world’s leading brands safeguard millions of users. Backed by a $543M Series A - one of the largest in cybersecurity history - and trusted by major global enterprises, they offer the agility of an innovator with the strength and backing of an industry leader.

Ready to take part in redefining IAM for the modern era? Let’s talk.

What makes you a great fit

  • At least 6 years of hands-on experience in Android and iOS development.
  • Strong experience developing mobile SDKs, preferably used by third-party developers and large-scale organizations.
  • Profound understanding of mobile operating systems, including:
  • Application lifecycle management;
  • Resource management and performance optimization;
  • Deep familiarity with OS internals (memory, threading, security models);
  • A strong sense of ownership, independence, and problem-solving skills; you get things done.
  • Upper-intermediate English level.

Will be a plus:

  • Experience developing security solutions for mobile platforms (RASP, root/jailbreak detection, anti-tampering, etc.).
  • Deep understanding of trusted hardware components (TEE, Secure Enclave, KeyStore).
  • Bachelor’s degree in Computer Science, Software Engineering, or equivalent field.
  • Experience with cross-platform mobile development, such as React Native, Flutter, or Kotlin Multiplatform.
  • Familiarity with performance profiling and debugging tools (e.g., Instruments, Perfetto, Systrace).

Your day-to-day in this position

  • Develop efficient, resilient, and secure SDKs that integrate deeply with mobile operating systems and are deployed on millions of devices.
  • Research and explore mobile OS internals, including system services, security mechanisms, and data collection points across both Android and iOS.
  • Stay up-to-date with the latest platform changes, OS versions, and security enhancements.
  • Collaborate closely with security researchers and backend engineers to design and implement advanced security solutions.
  • Work in a team developing developer-centric products, enabling seamless integration into clients’ apps across industries such as banking.

Why work with us?

  • People-oriented management without bureaucracy
  • The friendly climate inside the company is confirmed by the frequent comeback of previous employees
  • Flexible working schedule
  • 29 paid time off (18 working days per year, plus 11 days — all national holidays)
  • 10 sick leave days
  • Full financial and legal support for private entrepreneurs
  • Free English classes with native speakers or with Ukrainian teachers (for your choice)
  • Dedicated HR

Our next steps

✅ Intro call with a Recruiter — ✅ Client tech interview — ✅ Tech interview with livecoding — ✅ HR client interview — ✅ Offer