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Infrastructure Engineer (Multiple levels)

Engineering | Remote, Global |

ROOST aims to offer competitive compensation and benefits based on experience and region. In the US, the range for this role is $160,000 - 240,000.

Robust Open Online Safety Tools (ROOST) is seeking an Infrastructure Engineer to join our team in building open source safety infrastructure. As a member of our team you will contribute to designing, implementing, and optimizing large scale open source safety systems. Notes - This posting is for multiple levels, both Infrastructure Engineer and Senior Infrastructure Engineer. Level will be determined in the interview process. This is a software engineering role, and 3-5 years of software engineering experience is required. Additional skills in SRE and DevOps are a preferred qualification.

Robust Open Online Safety Tools (ROOST) is seeking Infrastructure Engineers to join our team in building the safety infrastructure for the AI powered internet. As a member of our team you will design, implement, and optimize open source distributed systems for online safety, like high-throughput rules engines, review platforms, and ML systems for classifier training and evaluations. You will work closely with ROOST’s team members including our growing engineering team, our Technical Design Committee, and the open source community of contributors.

What We're Building

ROOST is creating foundational infrastructure for a trust and safety workflow. This is the infrastructure that enables an organization to detect policy-violating content or behavior, then route, review, enforce, and log that content and or behavior. This is a system that’s heavy on data ingestion and processing, enforcing user-defined rules, and must be performant at scale. Our current tools include Osprey, a high performance rules engine that processes user defined rules in real-time and Coop, our review platform for detailed reviews with a comprehensive suite of child safety features. We know that AI is creating new challenges and opportunities for online safety; we are building tools that are resilient and relevant to these challenges. ROOST’s roadmap is publicly available. The roadmap is a living document, and is continuously informed by our Technical Design Committee, our on-staff expertise, and user community.

Key Responsibilities

  • • Drive and evolve ROOST’s open source safety tools
  • • Design, build, and maintain the infrastructure components of Osprey, Coop and future ROOST projects including agentic assist and ML system integrations
  • • Build data and event processing pipelines that ingest, validate, and route platform safety data, signals, and decisions for evaluation, actioning and human reviews.
  • • Implement well designed concurrency and horizontal scaling into systems to effectively handle both processing limited and I/O limited rules and external calls.
  • • Design extensible abstractions like dependency injection, multi database storage layers etc so that ROOST projects can be integrated into diverse user tech stacks. .
  • • Ensure ROOST projects have a well designed deployment setup, system health checks with CI/CD, observability and security practices across the development platform (eg GitHub), including in their handling of dependencies
  • • Lead decision analysis and drive consensus amongst stakeholders when faced with complex architecture decisions, balancing speed, features, simplicity, and performance
  • • Participate in an engineering culture of high quality execution and teamwork. This includes participating in system design and milestone planning; instilling code quality, rigor, testing, and monitoring; and ensuring quality developer experiences through documentation.

Required Qualifications

  • • 3-5 years of experience in software engineering, design and development and at least 1-2 years of experience building infrastructure like data processing, platform engineering
  • • Comfortable with working across multiple languages in ROOST’s stack including Python, TypeScript, Rust
  • • Experience with operating and tuning common infrastructure components such as message brokers, database systems, observability tooling
  • • Exhibits attention to detail in focusing on reliability, scalability, security, and continuous improvement
  • • Proven record of working with disparate teams and individuals, understanding issues, and making decisions and communicating them transparently

Preferred Qualifications

  • • Understanding of open-source ecosystem and prior contributions to OSS
  • • Experience with horizontal and vertical scaling of systems and ensuring performance through profiling and optimization
  • • Building or contributing to data processing systems.
  • • Prior experience in startups, non-profits and/or small team team environments

Benefits

  • • Premium health, dental, and vision coverage for employee and dependents
  • • 401(k) with matching
  • • PTO
  • • Remote-first work environment with flexible hours

Reports to: CTO

How to Apply

Please share your resume and a brief note about why ROOST's mission resonates with you and how your experience could help us advance it. Send these materials to hiring@roost.tools with "Infra Eng - [Your Name]" in the subject line or click the button below.

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