Member of Engineering (Agent Sandboxes)

**This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Member of Engineering (Agent Sandboxes) based in Romania.** This is a unique opportunity to contribute to cutting-edge AI infrastructure by building secure and scalable execution environments for next-generation intelligent systems. You will work at the intersection of platform engineering, distributed systems, and machine learning infrastructure, enabling large-scale experimentation and model training. The role focuses on designing highly reliable sandbox environments capable of supporting hundreds of thousands to millions of agent sessions. Working within a collaborative and research-driven environment, you will help shape foundational technologies that accelerate innovation in AI-powered software development. This position is ideal for engineers who enjoy solving complex infrastructure challenges, balancing speed with quality, and building systems that operate at exceptional scale. ### Accountabilities: The Member of Engineering (Agent Sandboxes) will be responsible for designing, developing, and operating secure execution environments that support advanced AI research and product initiatives. - Design and implement scalable sandboxed execution environments for intelligent agents and code execution systems. - Own the full development lifecycle of new features and platform capabilities, from architecture and implementation to deployment and maintenance. - Collaborate closely with research, engineering, and platform teams to understand requirements and deliver solutions that enable experimentation and product development. - Continuously improve the reliability, scalability, security, and performance of the sandbox infrastructure. - Evaluate and implement different isolation techniques, container technologies, and runtime strategies to enhance execution safety and efficiency. - Develop and optimize systems capable of supporting large volumes of concurrent execution environments. - Contribute to operational excellence by improving observability, automation, and infrastructure management processes. - Participate in architectural discussions and provide technical guidance on platform evolution and infrastructure best practices. ## Requirements: The ideal candidate is a strong systems engineer with expertise in distributed platforms, container technologies, and large-scale infrastructure environments. - Strong programming skills, particularly in Go, Python, or other systems programming languages. - Solid experience designing, building, and operating distributed systems in production environments. - Hands-on experience with Kubernetes or similar container orchestration platforms. - Experience working with cloud environments such as AWS, GCP, or equivalent infrastructure providers. - Strong understanding of virtualization technologies, container runtimes, and sandboxing techniques. - Experience building and maintaining large-scale CI/CD systems or developer infrastructure platforms. - Strong problem-solving abilities with a pragmatic approach to balancing technical quality and delivery speed. - Self-driven mindset with the ability to adapt priorities in fast-moving and evolving environments. - Excellent collaboration and communication skills, particularly within cross-functional and distributed teams. - Experience supporting large-scale machine learning workloads or AI infrastructure is considered a strong advantage. ## Benefits: - Fully remote work environment with flexible working hours. - Generous time-off policy, including 37 days of vacation and public holidays per year. - Health insurance allowance for employees and eligible dependents. - 16 weeks of fully paid parental leave with flexible arrangements. - Company-provided equipment to support an efficient remote setup. - Home office, wellbeing, and continuous learning allowances. - Frequent team gatherings, collaborative off-sites, and in-person…