Senior Mobile SDK Engineer

SIEMA TECH is an international IT company that provides services in the field of software development and consulting. We work with clients from all over the world and use the most modern technologies to ensure the high quality of our work.

About the Role:

We’re looking for a Senior Mobile SDK Engineer to join our engineering team and help shape the future of programmatic advertising. You’ll architect and build high-performance systems that process millions of ad transactions in real-time, while leveraging cutting-edge AI technologies to optimize outcomes for our partners.

This is an opportunity to work at the intersection of ad-tech and AI, building systems that operate at massive scale with sub-millisecond latency requirements. You’ll own the full development lifecycle, with freedom to plan and execute — from architecture to deployment and working with modern technologies and a collaborative, high-performing team.

In this role, you will own, develop and maintain mobile SDKs that enable app developers to integrate measurement, attribution, and data solutions into their applications.

What You’ll Do:

• Build and maintain SDKs across iOS, Android, and cross-platform frameworks;

• Integrate with advertising SDKs (AdMob, AppLovin, ironSource) and MMPs;
• Write comprehensive SDK documentation and integration guides;
• Support developers through integration challenges;
• Ensure SDK performance, stability, and minimal footprint;
• Implement privacy-compliant data collection methods.

Requirements:

• 5+ years mobile development experience;
• Deep expertise in at least two of: Swift, Kotlin, Java, Objective-C;
• Experience building and consuming REST APIs;
• Familiarity with mobile advertising ecosystem and attribution;
• Strong documentation and communication skills.

Preferred Qualifications & Experience:

Ad-Tech Experience (Strong Advantage):

• Mobile advertising SDK integrations;
• Header bidding/Prebid mobile implementations;
• Attribution and measurement (SKAN, Privacy Sandbox);
• Real-time data collection and event tracking;
• Integration with DSPs/SSPs.

What We Offer:

• Competitive salary;
• Flexible work environment — fully remote and global team;
• Opportunity to work with cutting-edge AI and ad-tech technologies;
• Collaborative team culture focused on learning and growth;
• Professional development budget and learning opportunities;
• Assistance (in the absence) in the registration of the IE (legal and accounting support);
• Training and continuous development: internal trainings, certification programs, communities of interest, English language courses;
• Fully official salary (payment to the IE’s current account).

The interview consists of 2 stages: introductory interview, technical interview/interview with the client.

If you are interested in this vacancy and meet the requirements, send your resume and motivation letter to our email. We look forward to welcoming you to our team!