Network System Engineer

Obsidian; Toronto; On-site; CAD 80,000 - 100,000; Full time

Job summary

Obsidian is seeking a Level 3 / Tier 3 network support engineer in Toronto, Ontario, to engage with data science and autonomous infrastructure. This position focuses on troubleshooting and incident response while interacting with client teams.

The ideal candidate will have experience with enterprise networks and a curiosity about transforming network data into inputs for machine learning models. Work hours are expected to be 30-40 hours per week.

Qualifications

• Experience as a Level 3 / Tier 3 / Principal Support Engineer.
• Hands-on experience with end-customer enterprise networks.
• Familiarity with how infra data becomes machine learning input.

Responsibilities

• Review data from deployed networks including logs, configs, and telemetry.
• Label and classify network behaviors and anomalies.
• Define schemas for data pipelines used in ML models.

Skills

Final escalations

Packet analysis

Troubleshooting

RCA workflows

Job description

Are you a Level 3 / Tier 3 network support engineer interested in data science and autonomous infrastructure? Our client is building vertically integrated networking systems and using the data they generate to power the next generation of AI-driven infrastructure. They’re looking for engineers experienced in final escalations, packet analysis, troubleshooting, and RCA workflows to help label, annotate, and structure networking data from real production systems.

This is a hands‑on role that blends your L3 troubleshooting and incident‑response experience with a growing understanding of how data pipelines are built and used in AI systems.

In this role, you’ll:

• Review real-world data from deployed networks: logs, configs, telemetry, event streams
• Label and classify network behaviors, issues, anomalies, and incident patterns
• Help define schemas and structure for large-scale data pipelines that downstream ML models will train on

You’re a strong fit if you:

• Work today as a Level 3 / Tier 3 / Principal Support Engineer keeping existing enterprise infrastructure online and stable — on‑call rotation, RCAs, final escalations, troubleshooting outages — Must Have
• Have hands‑on experience with end‑customer enterprise networks (switches, APs, firewalls in retail, healthcare, financial, manufacturing, university, hospitality, etc.) — Must Have
• Are curious about how raw infra data becomes machine learning input
• Want to contribute to the future of autonomous networking systems

Your work will directly feed into the pipelines that power client’s AI models, and help shape how intelligent systems reason about networks in the real world.

Here are more details about the role:

• You will interface directly with the client team.
• You are expected to work 30-40 hours/week.