Senior Staff Network Software Engineer New Toronto, Ontario

Kaseya Limited; Toronto; On-site; CAD 140,000 - 190,000; Full time

Job summary

Kaseya is seeking a Sr. Staff Network Software Engineer to architect and develop scalable, multi-tenant cloud networking and security solutions across public, private, and hybrid environments.

You will work hands-on, defining designs, writing code, and guiding teams to deliver production systems. The role emphasizes cloud-native NGFWs, ZTNA, SASE, and high-performance data paths in a fast-growing company.

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, PHP.
• 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

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.

Skills

Go

PHP

NGFWs

Linux networking

Kubernetes

DPI

eBPF

XDP

AF_XDP

VXLAN

CNI

Git

VPP

DPDK

Calico

Cilium

Kafka

Redis

Cassandra

ELK

Tools

Docker

Kubernetes

Redis

Cassandra

Kafka

ELK

Git

VPP

DPDK

Job description

About Kaseya

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.

Backed by Insight Partners, 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.

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.

At Kaseya, success comes from embracing challenges, moving with urgency, and continuously raising the bar.

Position Summary

We are seeking a Sr. Staff 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, PHP.
• 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.

#IND525

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.