Software Engineer – Edge, Networking & Fleet

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

📋 Description

• Transform CNC into a horizontally scalable fetch scheduler capable of managing 50–100 million requests daily.

• Develop and deliver the Fleet Manager's inventory, health, configuration, and software rollout platform.

• Create provider adapters, a reconciler, a rollout controller, and a BigQuery exporter.

• Manage and enhance the CONNECT proxy gateway along with edge session management.

• Collaborate with the API team on IP reputation, proxy leases, and request scheduling.

• Engineer mTLS gRPC, long-polling, and streaming functionalities over unreliable residential connections.

• Address NAT, carrier-grade NAT, and bandwidth allocation during contention.

• Establish SLOs for edge-route availability, success rates, and latency.

• Develop metrics for peer count, drop-off rates, and bandwidth usage.

• Execute safe blue/green rollouts for CNC and its peers.

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

• Draft RFDs, assess designs, and implement distributed-systems principles within the codebase.

• Collaborate closely with the Team Lead, Principal Engineer, and partner engineering teams.

⛳️ Requirements

• Over 5 years of production experience with Rust, including the end-to-end delivery and operation of services.

• Proven experience in designing and managing schedulers, control planes, or stateful services at scale.

• Ability to analyze consistency, partitions, backpressure, and idempotency.

• Extensive knowledge of TCP, TLS, and HTTP at both the handshake and packet levels.

• Experience working with gRPC and maintaining long-lived connections over NAT and unreliable links.

• Background in building or managing forward proxies, proxy gateways, or residential/ISP proxy infrastructures.

• Understanding of IP reputation, session stickiness, and pool health dynamics.

• Familiarity with SLOs, error budgets, observability, and handling production incidents.

• Willingness to participate in on-call duties.

• Proficient in Rust across Windows, Linux, and Android platforms.

• Awareness of FFI boundaries.

• Strong written communication skills suitable for a globally distributed, remote-first setting.

• Knowledge of Rust, specifically with tokio and tonic.

• Familiarity with C++ and Cronet at the peer interface.

• Understanding of Python and Java integration services.

• Experience with gRPC and protobuf over mTLS.

• Knowledge of HTTP CONNECT proxying.

• Familiarity with the Chromium network stack and headless HTTP clients.

• Experience with GCP, Kubernetes, Terraform, and blue/green deployment strategies.

• Familiarity with Valkey, BigQuery, and Confluent Kafka.

• Knowledge of Prometheus, Grafana, Loki, and OpenTelemetry.

🏝️ Benefits

• Join a self-driven, progressive, and multicultural team.

• Enjoy the freedom and flexibility to work from your preferred location.

• Participate in conferences and connect with team members globally.

• Work with advanced open-source technologies and tools.

• Benefit from flexible working hours.

• Take part in the on-call rotation.