SDK Engineer

Posted 4 Days Ago
Be an Early Applicant
Kyiv, Kiev, UKR
In-Office
Junior
AdTech • Marketing Tech
The Role
As an SDK Engineer at AppsFlyer, you will develop SDK features for Android and iOS, enhance SDK security, and collaborate across teams in an Agile environment.
Summary Generated by Built In

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
  • Snacks, fruits & ice cold beer
  • All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all of our employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all our employees, customers, and partners.

“As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In.” Oren Kaniel, CEO


Skills Required

  • 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

AppsFlyer Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about AppsFlyer and has not been reviewed or approved by AppsFlyer.

  • Wellbeing & Lifestyle Benefits Wellbeing support is positioned as a meaningful part of the rewards package, including private health insurance and wellness offerings like fitness classes. Additional extras such as events, work‑from‑home support, and global mobility opportunities are portrayed as adding tangible value beyond cash compensation.
  • Equity Value & Accessibility Equity is framed as broadly accessible, with stock options described as available to all employees. This expands the total rewards mix and can make overall compensation feel stronger even when salary alone is debated.
  • Strong & Reliable Incentives Total compensation in certain technical and revenue roles is presented as capable of reaching competitive levels, implying meaningful upside where role/market fit is strong. Sales compensation is described as potentially attractive on-target, which can reinforce perceived earning opportunity when performance aligns with plan design.

AppsFlyer Insights

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The Company
HQ: San Francisco, CA
1,625 Employees
Year Founded: 2011

What We Do

AppsFlyer helps brands make good choices for their business and their customers through innovative, privacy-preserving measurement, analytics, fraud protection, and engagement technologies. Built on the idea that brands can increase customer privacy while providing exceptional experiences, AppsFlyer empowers thousands of creators and 8,000+ technology partners to create better, more meaningful customer relationships. To learn more, visit www.appsflyer.com.

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