Systems Engineer — Linux Isolation & Networking

About this role

<div class="content-intro"><p><strong>About Kaseya</strong></p> <p data-start="226" data-end="568">Kaseya is the leading provider of AI-powered IT management and cybersecurity software, serving Managed Service Providers (MSPs) and internal IT organizations worldwide. Our comprehensive platform helps organizations efficiently manage, secure, and automate their IT environments, driving operational efficiency and long-term business success.</p> <p data-start="570" data-end="898">Backed by <a class="decorated-link" href="https://www.insightpartners.com?utm_source=chatgpt.com" target="_new" data-start="580" data-end="654">Insight Partners</a>, a leading global software investor, Kaseya has experienced sustained double-digit growth and continues to expand its global footprint. Today, Kaseya supports customers in more than 20 countries and manages over 15 million endpoints worldwide.</p> <p data-start="900" data-end="1191">Founded in 2000, Kaseya has built a culture centered around innovation, accountability, and results. We are a high-growth, high-performance organization that values individuals who are driven, adaptable, and committed to delivering exceptional outcomes for our customers and teammates alike.</p> <p data-start="1193" data-end="1468">At Kaseya, success comes from embracing challenges, moving with urgency, and continuously raising the bar.&nbsp;</p></div><p>&nbsp;</p> <h1>Systems Engineer — Linux Isolation &amp; Networking</h1> <p><strong>Locations:</strong> Toronto, ON — 2 openings<br><strong>Employment Type:</strong> Full-time</p> <h2>Why Kaseya?</h2> <p>Join a fast-growing company that’s transforming the IT industry. At Kaseya, you’ll have the opportunity to work with cutting-edge technology, collaborate with a dynamic team, and develop your career in a high impact role.</p> <p>Join the Kaseya growth rocket ship and see how we are #ChangingLives!</p> <h2>Job Summary</h2> <p>We’re hiring Systems Engineers to build the process-isolation, sandboxing, and network-interception infrastructure that enables secure workload execution across the Kaseya Intelligence Platform. This is low-level engineering at the Linux, networking, and process boundary rather than application-layer development. You’ll build language-independent infrastructure that isolates workloads, protects credentials, and enforces security controls across multi-tenant environments.</p> <h2>Roles &amp; Responsibilities</h2> <ul> <li> <p>Build and operate a transparent sidecar proxy that intercepts outbound vendor API calls, enforces credential and compliance policies, and records tamper-evident audit events</p> </li> <li> <p>Implement process-isolation controls using Linux users and permissions, namespaces, cgroups, ptrace restrictions, protected memory, and explicit credential cleanup</p> </li> <li> <p>Evaluate and implement sandboxing approaches using technologies such as gVisor, Firecracker, WebAssembly runtimes, or Unix-domain-socket isolation</p> </li> <li> <p>Design infrastructure that enforces workload and customer boundaries across large numbers of isolated execution environments</p> </li> <li> <p>Evaluate and integrate workload identity and attestation technologies such as SPIFFE and SPIRE</p> </li> <li> <p>Implement secure workload startup sequencing, including KMS access, token preparation, network-rule installation, and readiness signalling</p> </li> <li> <p>Improve the performance, observability, reliability, and failure recovery of the execution and isolation layers</p> </li> <li> <p>Partner with Platform, Security, and Backend Engineering teams to define interfaces, investigate production issues, and deploy platform improvements</p> </li> </ul> <h2>Required Qualifications</h2> <ul> <li> <p>Experience developing production systems software using Go, Rust, C, or C++</p> </li> <li> <p>Experience working with Linux internals, including namespaces, cgroups, netfilter or iptables, sockets, and process lifecycle management</p> </li> <li> <p>Experience implementing or operating at least one sandboxing or workload-isolation technology, such as gVisor, Firecracker, WebAssembly, containers, or micro virtual machines</p> </li> <li> <p>Experience building networking infrastructure involving TCP/IP, transparent proxying, or TLS termination and origination</p> </li> <li> <p>Experience implementing process isolation, privilege separation, protected credential handling, or related operating-system security controls</p> </li> </ul> <h2>Preferred Qualifications</h2> <ul> <li> <p>Experience building or operating multi-tenant container, sandbox, or virtual-machine isolation infrastructure</p> </li> <li> <p>Experience with SPIFFE, SPIRE, or another workload identity and attestation framework</p> </li> <li> <p>Experience integrating AWS KMS, Azure Key Vault, GCP Cloud KMS, or similar key-management services</p> </li> <li> <p>Experience working on endpoint security, EDR, zero-trust networking, or infrastructure security products</p> </li> <li> <p>Experience with Kubernetes, container-runtime internals, or managed container platforms</p> </li> <li> <p>Experience with Temporal or another durable workflow execution platform</p> </li> <li> <p>Experience supporting systems subject to security, privacy, or compliance requirements</p> </li> </ul> <h2>Compensation Range — Toronto Posting Only</h2> <p>The base salary range for this job is CAD $160,000 – $240,000 / year.</p> <p>An individual’s base pay depends on various factors including geographical location and review of experience, knowledge, skills, and abilities of the applicant. At Kaseya, certain roles are eligible for benefits and additional rewards. These rewards are allocated based on individual impact in role. In addition, certain roles also have the opportunity to earn sales incentives based on revenue or utilization, depending on the terms of the plan and the employee’s role.</p> <h2>Additional Information</h2> <p>Kaseya provides equal employment opportunity to all employee