Senior SDK Engineer
Some roles let you pick one platform. This one lets you own them all.
Massive is a fast-growing proxy and AI data infrastructure company. Our Monetization SDK powers millions of users across desktop, mobile, and smart TV — and we're looking for a Senior SDK Engineer to own it.
This isn't a ticket-driven maintenance role. You'll make real architectural decisions, ship across four platforms, and directly impact how millions of users experience our core product. Small team, high ownership, no layers between you and the work that matters.
Responsabilidades
✔ Maintain and enhance our existing SDKs across Android/FireOS (Kotlin), Tizen/WebOS (JavaScript), Windows (C++), and iOS (Swift).
✔ Develop new features and capabilities based on business requirements and partner feedback.
✔ Collaborate with backend, infrastructure, and product teams to improve SDK performance, reliability, and user experience.
✔ Research and implement optimizations to minimize resource consumption while maximizing efficiency.
✔ Design and implement robust testing strategies for multi-platform SDK releases.
✔ Create and maintain comprehensive documentation for internal teams and external partners.
✔ Investigate and resolve complex platform-specific issues across different operating systems and devices.
✔ Drive architectural decisions for SDK design patterns and cross-platform compatibility.
Requisitos
✔ 4+ years of experience in software engineering with a focus on SDK or library development.
✔ Proficiency in at least one primary language: Kotlin (strongly preferred), JavaScript, or C++ — with willingness to learn others.
✔ Experience with mobile and/or TV platform development.
✔ Strong understanding of memory management, threading, and performance optimization across platforms.
✔ Experience with SDK distribution mechanisms (package managers, build systems, dependency management).
✔ Strong debugging and troubleshooting skills across multiple environments.
✔ Self-directed and comfortable working in a fast-paced startup environment.