Principal Network Software Engineer Markham, Ontario

Kaseya® is the leading provider of complete IT infrastructure and security management solutions for Managed Service Providers (MSPs) and internal IT organizations worldwide powered by AI. Kaseya’s best-in-breed technologies allow organizations to efficiently manage and secure IT to drive sustained business success. Kaseya has achieved sustained, strong double-digit growth over the past several years and is backed by Insight Venture Partners www.insightpartners.com, a leading global private equity firm investing in high-growth technology and software companies that drive transformative change in the industries they serve.

Founded in 2000, Kaseya currently serves customers in over 20 countries across a wide variety of industries and manages over 15 million endpoints worldwide. To learn more about our company and our award-winning solutions, go to www.Kaseya.com and for more information on Kaseya’s culture.

Kaseya is not your typical company. We are not afraid to tell you exactly who we are and our expectations. The thousands of people that succeed at Kaseya are prepared to go above and beyond for the betterment of our customers.

Job Summary

We are seeking a Principal Network Software Engineer to architect and develop scalable and multi-tenant cloud-native networking solutions and security architectures. This role blends cloud networking expertise with software development.

The ideal candidate has deep experienceincloud-nativeNext-Generation Firewalls (NGFWs), Zero Trust Security, and Secure Access Service Edge (SASE)stack, along with hands‑on cloud software development, data plane engineering, and cloud automation. The role will focus on building high-performance, multi-tenant cloud networking solutionsfor multiple deployment scenarios, integratingpublic andprivateclouds, cloud-managed networking devices, and SASE components.

This is ahands‑on role: you’ll define the design, write and review code, and guide teams through delivering production systems.

Key Responsibilities

• Architect and developmulti-tenantcloud-nativenetworking and security solutions inpublic, private cloud, and hybrid environments.
• Optimizetraffic steering, policy orchestration, and security enforcement.
• Develophigh-speed telemetry and analytics solutions for network visibility and threat detection.
• Develop software solutions to optimize cloud egress and gateway hosting costs, reducing expenses while maintaining network security and performance.
• Develop cloud networking applications using Go & PHP for traffic management, security policy orchestration, network observability,and service chaining.

Required Qualifications

• 10+ years of experience in software engineering, with at least 7+ years focused primarily on backend systems.
• 3+ years of experience in a Staff, Principal, or Architect role with end-to-end ownership of architecture and delivery.
• 5+ years of hands‑on programming experience in Golang, C/C++, PHP, and Python.
• 3+ years of hands‑on experience with cloud-native NGFWs and network security appliances.
• 5+ years of experience in Linux networking, including firewall configuration using netfilter, iptables, and nftables, as well as DNS filtering, traffic shaping, and QoS.
• 3+ years of experience with network security technologies including DNS filtering, Deep Packet Inspection (DPI), Intrusion Detection and Prevention Systems (IDPS), Anti-Virus, and SSL Proxy.
• 2+ years of experience working with SASE components such as DLP, SWG, ZTNA, CASB, sandboxing, anti-malware, and anti-virus.
• 2+ years of hands‑on experience with Linux userspace fast-path frameworks such as VPP and DPDK

Preferred Qualifications

• Hands‑on experience withfast path Linux Kernel fast path technologies likeeBPF,XDP, and AF_XDP.
• Proven experience withdata-path Multitenancylike VXLAN, Linux Namespaces and VRFs.
• Solid background incontainerization and Kubernetes orchestration,includingCNI selection, configuration, and troubleshooting.
• Familiarity withcloud-native Networking frameworks, like Cilium and Calico.
• Working experience with ELKstack, database stores like Redis and Cassandra, and message queues likeKafka.
• Knowledge of continuous integration workflows, testing tools, and source code management tools (e.g., Git).
• Strong experience with VPN technologies like IPSec and WireGuard.

Join the Kaseya growth rocket ship and see how we are #ChangingLives !

Additional information
Kaseya provides equal employment opportunity to all employees and applicants without regard to race, religion, age, ancestry, gender, sex, sexual orientation, national origin, citizenship status, physical or mental disability, veteran status, marital status, or any other characteristic protected by applicable law.

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