Senior SDK Engineer at Recrucial

Stanowisko Senior SDK Engineer
Opublikowano 20 Feb 2026
Wygasło 22 Mar 2026
Firma Recrucial
Lokalizacja Kraków | PL
Rodzaj umowy Full Time

Opis stanowiska:

Najnowsze informacje o pracy w Recrucial na stanowisko Senior SDK Engineer. If the Senior SDK Engineer wolny etat w Kraków odpowiada Twoim kwalifikacjom, prześlij swoje aktualne CV bezpośrednio przez portal Jobkos.

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Senior SDK Engineer Remote Full-time Who Are We? We are a fully remote, founder-led technology Firma focused on building the infrastructure that powers large-scale, data-driven innovation. Our products run behind the scenes of applications and platforms used globally, supporting millions of users across multiple environments and devices. Our team is small, senior, fast, and allergic to bureaucracy. We value autonomy, ownership, and the freedom to build at a high level of technical sophistication. What Do We Do? We develop and operate a global proxy network, managed scraping APIs, and automation tools for large-scale data collection. At the core of our work is a cross-platform Monetization SDK that enables app developers to provide users with an alternative way to access premium features. Instead of paying with money or watching ads, users can opt in to share a small amount of unused computing resources. This SDK currently runs on millions of devices across desktop, mobile, and smart TV platforms. Why Do We Do It? Modern app monetization is outdated, limited, and often frustrating for users. Ads disrupt the experience, and paywalls restrict access. We believe in a model where users can access digital products without traditional payments, while developers gain a sustainable and scalable revenue stream. Our mission is to reimagine how digital products are financed and consumed. Your engineering work will directly influence how this new monetization model evolves. How Do We Do It? We build high-performance SDKs that are efficient, secure, resource-aware, and easy for developers to integrate. We combine strong engineering discipline with rapid execution, making decisions quickly and shipping improvements continuously. We operate as a tight-knit team where each engineer has significant ownership and the freedom to influence architecture, tooling, and long-term strategy. Who Works With Us? A distributed team of around twenty experienced engineers and product specialists. You will join a small, senior SDK-focused group working closely with backend, infrastructure, and product teams. English is our primary working language, and asynchronous communication is our default. Why Is There a Vacancy? We are scaling. Our SDK is expanding into new platforms, growing in complexity, and supporting an increasing number of enterprise partners. We are looking for an engineer who can own and evolve multi-platform SDK development as the product footprint continues to grow. Who Are We Looking For? A resourceful and experienced engineer who enjoys complex technical challenges, learns new languages quickly, and understands the nuances of building production-grade SDKs for a wide range of environments. Essential Requirements 4+ years of software engineering experience, ideally in SDK or library development. Strong experience with Kotlin (preferred) or proficiency in JavaScript or C++ with readiness to learn additional languages. Background in mobile and/or smart TV platform development. Deep understanding of memory management, threading, and performance optimization. Experience with SDK packaging, distribution, and dependency management. Strong debugging and troubleshooting skills across multiple operating systems. Solid written communication skills for documentation and cross-team work. Ability to operate independently in a fast-paced startup environment. Bonus Points Experience with JavaScript/TypeScript on smart TV platforms (Tizen, WebOS). Knowledge of proxy protocols or network programming. Familiarity with resource usage monitoring and optimization. Understanding of sandboxing, platform-specific security constraints. Swift/iOS development experience. Previous contributions to open-source SDKs. CI/CD experience for multi-platform builds and releases. What Will You Do? Maintain, expand, and optimize SDKs for Android/FireOS (Kotlin), WebOS/Tizen (JavaScript), Windows (C++), and iOS (Swift). Develop new features and capabilities based on product requirements and partner needs. Collaborate with backend, product, and infrastructure teams to ensure high performance, consistency, and stability across platforms. Investigate complex platform-specific issues and deliver robust solutions. Define and implement testing strategies for multi-platform releases. Contribute to architectural decisions and long-term SDK evolution. Write clear documentation for internal teams and external integration partners. This role is hands-on, technical, and directly tied to the core revenue engine of the Firma. What Conditions Do We Offer? Full-time remote work from any Lokalizacja. Flexible schedule with at least 4 hours of working overlap with GMT+2. Competitive compensation plus an equity incentive plan. Unlimited vacation and sick days (with advance notice). Three-month trial period. Health insurance reimbursement. Reimbursement for remote work equipment and setup. A culture that prioritizes engineering excellence and trust over process. What Is Our Hiring Process? We aim for a friendly, transparent, and practical process focused on real-world thinking. Introductory Call 30 minutes Technical Interview(s) 60 to 90 minutes Manager Interview 30 to 60 minutes Final Conversation with the CEO 30 minutes Candidates are also asked to provide written responses to several thoughtful screening questions (without using LLMs). Interested in Building the Future of App Monetization? If you want to work on technology used by millions of users and influence the Następna generation of monetization models, we would be happy to talk. Even if you re just exploring, feel free to reach out.

Szczegóły oferty:

  • Firma: Recrucial
  • Stanowisko: Senior SDK Engineer
  • Miejsce pracy: Kraków
  • Kraj: PL

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