Security SDK Engineer

About the role

AppsFlyer builds technology at massive scale, powering measurement, analytics, and fraud prevention across billions of mobile events every day.

Join AppsFlyer’s Security SDK Team, responsible for protecting the integrity and authenticity of our mobile SDKs across Android and iOS. The team works on securing SDK communication, improving SDK resilience, and building trusted solutions that run on billions of devices worldwide.

This is a great opportunity for engineers who are passionate about mobile development and interested in security, low-level systems, and reverse engineering.

We work with Android and iOS platforms, native components (C/C++), and cloud-based infrastructure, while encouraging continuous learning, technical growth, and hands-on research.

What you’ll do

- Develop AppsFlyer SDK features end-to-end — from design to production.

- Build and improve protection mechanisms for Android SDKs (primary focus) and iOS SDKs.

- Help improve SDK resilience against tampering and abuse.

- Collaborate with Product Managers and Engineers across mobile and backend teams.

- Participate in research, debugging, and investigation of mobile security challenges.

- Learn and work with low-level mobile technologies, native code, and reverse engineering tools.

- Work in an Agile environment with engineers across mobile, backend, and product.

What you have (Must)

- B.Sc. in Computer Science or equivalent experience.

- 1–2 years of software development experience, preferably in Android development.

- Experience developing mobile applications or SDKs.

- Good understanding of Android fundamentals and application architecture.

- Strong debugging and problem-solving skills.

- Curiosity and motivation to learn security and low-level technologies.

- Very good English communication skills.

- Strong ownership mindset and willingness to learn and grow.

Bonus Points

- Experience with Kotlin, Java, or Android SDK development.

- Familiarity with C/C++ or mobile native development.

- Interest in mobile security, reverse engineering, or runtime internals.

- Familiarity with tools such as Frida, Ghidra, or IDA.

- Experience with Gradle, CMake, or CI/CD systems.

- Familiarity with AWS or backend services.

- Exposure to LLVM/Clang or build toolchains.

Benefits Package includes:

- Health Insurance

- Paid Unlimited Vacation Days + all national holidays + additional recharge days

- Meals Reimbursement

- Sport Reimbursement

- Breakfast in the office

- Mental health program

- Team building, happy hours, and other team activities

- Paid sick days