Senior iOS SDK Engineer

4 dni temu

Poland Instabug Pełny etat 50 000 € - 150 000 € rocznie

Job Purpose:

We're looking for a Senior/Staff iOS Engineer with strong experience building public-facing SDKs to join our team. You'll work on high-scale, performance-critical components used by thousands of developers, shaping the next generation of our mobile SDK architecture.

Job Responsibilities:
-Own core parts of our iOS SDK architecture: design, implementation, performance, and stability.

-Build and maintain a clean, robust public API surface with strong backward-compatibility and versioning discipline.

-Work hands-on with Swift and Objective-C, including mixed-code environments and safe migration patterns.

-Improve our event pipelines: batching, offline storage, retries, backoff, crash safety, and performance.

-Enhance low-level components: crash handling, signal/Mach exceptions, hang detection, logging, and instrumentation.

-Collaborate across Android, RN, Flutter, and Backend teams on unified behaviors and data contracts.

-Identify bottlenecks using Instruments and ship optimizations with measurable impact.

-Write reliable unit, integration, and scenario tests to ensure stability in a wide range of host-app conditions.

-Participate in technical design reviews, RFC discussions, and architecture decisions.

-Improve developer experience through documentation, samples, and clarity of APIs.

Job Requirements:

- 7+ years of professional iOS experience

- 3+ years building and maintaining an iOS SDK (analytics, crash reporting, payments, or similar).

- Familiarity with symbolication/dSYMs, stack unwinding, or binary formats.

- Strong knowledge of Swift, Objective-C, and the iOS runtime.

- Deep understanding of app lifecycle, background modes, memory management, concurrency, and thread safety.

- Experience with public SDKs, including versioning, API design, and handling customer edge cases.

- Solid expertise in networking: URLSession, retries, async flows, caching, connection management.

- Strong debugging skills with Instruments, OS logs, crash logs, and performance tools.

- Hands-on with Core Data or SQLite.

-Experience working with CI/CD for SDKs (SPM, Cocoapods, XCFrameworks).

Bonus:
-Experience contributing to open-source iOS libraries.

-Knowledge of cross-platform SDK ecosystems (React Native, Flutter).

  • iOS Integration Engineer

    4 dni temu

    Poland IDEMIA Pełny etat 35 000 zł - 70 000 zł rocznie

    IDEMIA Secure Transactions, a division of IDEMIA Group, is the leading technology provider making it safer and easier to pay and connect. With unmatched expertise in cryptography and credential issuance, IST is trusted by over 2,000 financial institutions, mobile operators, automotive manufacturers, and IoT providers worldwide. Every day, IST secures...

  • Senior IOS Mobile Platforms Engineer

    6 dni temu

    Poland Description Ciklum Pełny etat 40 000 zł - 80 000 zł rocznie

    DescriptionCiklum is looking for a Senior IOS Mobile Platforms Engineer to join our team full-time in Poland.We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and...

  • Senior iOS Developer

    4 dni temu

    Poland Develocraft Pełny etat 100 000 zł - 122 500 zł rocznie

    Develocraft is looking for a Senior iOS Developer to work on a 6-month project. You will join a team that focuses on enhancing recommendation capabilities within the iOS app, aiming to deliver relevant product suggestions that boost both user engagement and overall sales. The project is driven by continuous experimentation and optimization, relying on A/B...

  • Senior TypeScript SDK Engineer

    4 dni temu

    Remote (Kraków, Lesser Poland Voivodeship, PL) Document solutions for SharePoint, Power Automate, and other M365 products. Pełny etat 60 000 zł - 120 000 zł rocznie

    Your Role at Nutrient…The team you will be joining is responsible for the Nutrient Web SDK. Take a look at its API docs to get an understanding of the scope involved: It is a toolbox for web engineers and application developers who need a painless way to render, edit and process documents. It either runs client-side using WebAssembly or connects to...

  • Senior iOS Engineer

    6 dni temu

    Poland Housecall Pro Pełny etat 69 999 zł - 149 999 zł rocznie

    Who we are?Founded in 2013, Housecall Pro helps home service professionals (Pros) streamline every aspect of their business. With easy-to-use tools for scheduling, dispatching, payments, and more, Housecall Pro enables Pros to save time, grow profitably, and provide best-in-class service.Housecall Pro's brand portfolio includes BuildBook, construction...

  • Senior TypeScript SDK Engineer

    2 dni temu

    Remote (Kraków, Lesser Poland Voivodeship, PL) Document solutions for SharePoint, Power Automate, and other M365 products. Pełny etat 60 000 € - 120 000 € rocznie

    Your Role at Nutrient…You will be joining the R&D team responsible for the Nutrient Document Authoring SDK, a WYSIWYG web editor library, aiming to eliminate the need for external word processing software by embedding the experience directly in our customers' applications. It offers a type-safe, in-browser visual editor for fast, page-based editing. The...

  • Senior iOS Developer

    6 dni temu

    Aleje Jerozolimskie Warsaw, , - Poland intent Pełny etat 30 000 € - 50 000 € rocznie

    Job description We're currently seeking a passionate freelance Senior iOS Developer to join our forthcoming projects. As a freelancer cooperating with intent, you'll have the chance to work on diverse IoT projects, contributing your expertise to our team. At the moment, there are no ongoing projects, but we eagerly await upcoming opportunities and are keen...

  • Engineering Team Leader

    4 dni temu

    Poland IDEMIA Pełny etat 60 000 zł - 120 000 zł rocznie

    IDEMIA Secure Transactions, a division of IDEMIA Group, is the leading technology provider making it safer and easier to pay and connect. With unmatched expertise in cryptography and credential issuance, IST is trusted by over 2,000 financial institutions, mobile operators, automotive manufacturers, and IoT providers worldwide. Every day, IST secures...

  • Senior Java SDK Developer

    4 dni temu

    Poland IDEMIA Pełny etat 40 000 zł - 80 000 zł rocznie

    Since our founding, IDEMIA has been on a mission to unlock the world and make it safer through our cutting-edge identity technologies. Our technology leadership makes us the partner of choice for hundreds of governments and thousands of enterprises in over 180 countries, including some of the biggest and most influential brands in the world. In applying our...

  • Head of Development

    6 dni temu

    Poland Joyteractive Pełny etat 32 000 zł - 320 000 zł rocznie

    We are Joyteractive - a leading mobile game developer and publisher specializing in the captivating world of puzzle games. Today, our team boasts 50+ rock star professionals, and we're on the lookout for talented individuals to help us dominate the world of puzzles Our leader is Cryptogram: Word Brain Puzzle - #3 spot among all iOS/Android word games in the...