Software Engineer, Edge Devices – Mobile

This is a fully remote position, open to applicants in Brazil.

📋 Description

• Develop and sustain the cross-platform Rust peer binary for Windows, Android, Linux, and eventually macOS.

• Manage process lifecycles, background tasks, networking, automatic updates, and ensure stability on unmanaged hardware.

• Adapt the peer for Android utilizing NDK/JNI, focusing on foreground services, battery optimizations, and mobile network integration.

• Integrate the Chromium network stack, Cronet, C++, and browserless HTTP clients into well-tested Rust libraries.

• Collect hardware and OS reconnaissance data, including TCP/TLS/HTTP fingerprints.

• Share fingerprint and hardware findings with the Browser and Antiban teams.

• Develop per-device metrics for uptime, drop-off rates, bandwidth, and success rates.

• Implement peer-level functionalities such as captcha solving and browser rendering.

• Securely isolate the peer from untrusted pages and hosts.

• Participate in the on-call rotation and conduct post-mortems.

• Enhance software and deployments based on operational insights.

• Author RFDs, review architectural designs, and set cross-platform Rust engineering standards.

• Collaborate with the Team Lead, Principal Engineer, Browser Stack squad, and Antiban squad.

⛳️ Requirements

• Over 5 years of production experience with Rust.

• Demonstrated success in shipping and maintaining software end-to-end.

• Experience in deploying Rust code on at least two platforms among Windows, macOS, or Android, including at least one mobile platform.

• Strong understanding of OS permissions, processes, and background behavior.

• Proficient in interfacing Rust with C/C++ libraries and native OS APIs, including JNI/NDK, Win32, and POSIX.

• Experience in managing lifetimes, memory ownership, and cross-language threading.

• Comprehensive knowledge of TCP, TLS, and HTTP protocols at the packet level.

• Ability to analyze network traffic and differentiate client fingerprints.

• Experience in instrumenting software and assessing fleet health without direct device access.

• On-call operational excellence.

• Security-aware design principles for code operating on third-party devices.

• Strong written communication skills.

• Familiarity with Rust (tokio, tonic), C++ (Cronet), and Kotlin/Java on Android.

• Experience with gRPC and Protobuf over mTLS, Chromium network stack, browserless HTTP clients, and custom Chromium builds.

• Knowledge of GCP, Kubernetes, Valkey, BigQuery, blue/green deployments, Prometheus, Grafana, Loki, and OpenTelemetry.

🏝️ Benefits

• Truly remote-first: Work from wherever you thrive.

• Freedom and flexibility to choose your optimal work environment.

• Flexible working hours.

• Opportunities to attend conferences and engage with team members globally.

• Work with innovative open-source technologies and tools.

• Self-motivated, progressive, multi-cultural team.

• High-trust and supportive work environment.

• Global collaboration with skilled systems engineers and data experts worldwide.