דרושים » חומרה » Backend Developer (C# or Java)

we are looking for a Mobile SDK Engineer.
The Core SDK team operates across Android and iOS platforms, with a long-term vision of a unified mobile SDK engineering team. Engineers collaborate across platform boundaries while maintaining deep expertise in their primary mobile ecosystem.
Operating at the intersection of mobile platforms and large-scale distributed systems, the team tackles complex challenges such as performance optimization, platform compatibility across thousands of devices, and maintaining highly reliable code that runs on billions of devices.
As the team evolves, we are also expanding beyond traditional mobile development and scaling engineering capabilities with AI. This includes building and using AI-powered tooling, MCP-based systems, and agent-driven automation to improve developer productivity, testing, and SDK innovation.
Engineers in the team therefore have the opportunity to work not only on mobile platform challenges, but also on emerging areas where mobile infrastructure, AI systems, and developer platforms intersect.
What youll do
Develop and maintain mobile SDK features used by developers worldwide
Design and implement reliable and performant SDK components across multiple mobile platforms and operating system versions
Take ownership of end-to-end quality, including design, implementation, testing, and production reliability
Debug and resolve complex issues across different devices, OS versions, and runtime environments
Improve SDK performance, stability, and reliability at scale
Develop and maintain SDK wrappers and integrations for cross-platform frameworks such as Unity, React Native, Flutter, and other mobile environments
Work with modern AI-driven engineering tools, automation systems, and internal developer platforms
Collaborate with engineers across mobile, backend, frontend, and platform teams
Participate in code reviews and contribute to engineering best practices

Were looking for a strong hands-on senior Backend Engineer (Tech lead) with a passion for technical excellence and leadership.
The Tech Lead serves as the technical owner of one or more domains within the product - driving architecture, design, and code quality while mentoring developers and fostering a culture of innovation and continuous improvement.
In this role, youll lead by influence, not hierarchy - partnering closely with Product Leads and Domain Architects to ensure scalable, maintainable, and high-performing solutions. Youll balance hands-on technical work with guiding others, setting engineering standards, and shaping the technical roadmap.
The team is comprised of 3-5 seasoned and expert engineers, with a focus on code quality and data-driven decision-making. The team owns the most critical component of the product and holds our core intellectual property (IP).
What Youll be Doing:
Own the technical quality, design, and roadmap for your domain(s).
Drive engineering best practices through design reviews, code reviews, and technical mentoring.
Collaborate with Product Leads on prioritization, backlog, and feasibility decisions.
Contribute to architectural discussions and cross-domain alignment.
As the technical authority in your team youll be partnering with managers to shape hiring decisions, provide feedback/input for performance reviews, and contribute to other team-related decisions.
Foster a culture of learning, innovation, and technical excellence.
Tackle technical challenges - performance, fault-tolerance, and live production issues.