Senior Staff Software Engineer
- Toronto, ON
- On-site
- Posted Aug 19, 2026
- 1 position
Opens an external site
- Employment type
- Full-time
- Experience level
- Lead · 10+ years
- Posting language
- English
- Working hours
- 40 hours per week
Job summary
Lead the architecture and technical design of cloud-native, multi-tenant SASE control-plane services and distributed gateway fleets. Define orchestration patterns and partner with data-plane teams to ensure scalable, resilient, and cost-efficient platform capabilities.
Job details
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 [https://www.insightpartners.com/], 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 was built by builders - and we're still building. We look for people who create rather than wait, who see a hard problem and lean in, and who treat challenges as raw material. At Kaseya, everyone plays a role in shaping the future of IT: whether you're in engineering, product, sales, marketing, customer support, or operations, your work helps protect, defend, and optimize IT environments across the globe. We're building teams that grow, perform, and make an impact. If you're driven by the itch to make things better - a product, a process, a career - you'll fit right in. At Kaseya, we don't just raise the bar. We build it. Job Summary The Sr. Staff Software Engineer - Cloud Native and SASE focused will lead the design and implementation of a cloud-native, multi-tenant SASE solution and its interaction with a globally distributed customer network. This is a hands-on architecture role responsible for defining how customer traffic is managed across regions and gateways, while shaping scalable, resilient, and cost-efficient platform capabilities. The role is critical to delivering production-grade distributed systems that improve performance, availability, multi-tenancy, and operational efficiency. Roles & Responsibilities * Lead the architecture and technical design of SASE control-plane services that manage tenant configuration, policy, routing, lifecycle, and per-tenant usage across regions. * Define and implement orchestration patterns for configuration, telemetry, and lifecycle management across a distributed gateway fleet. * Design scalable and highly available cloud-native systems that support dynamic gateway scaling, failover, multi-AZ deployment, and multi-region traffic management. * Evaluate and design multi-tenancy models, including siloed, pooled, containerized, and hybrid approaches, with clear trade-off analysis across scale, isolation, performance, and cost. * Partner closely with data-plane teams to define APIs, traffic flows, and policy enforcement mechanisms for tunnels, routing, roaming, private-network connectivity, and gateway interactions. * Establish deployment methodologies and engineering standards for CI/CD, infrastructure as code, observability, rollouts, and resilience in partnership with DevOps and SRE teams. * Provide technical leadership by breaking architecture into executable roadmaps, writing and reviewing code, mentoring senior engineers, and influencing technical direction across multiple teams. * Drive platform efficiency and COGs optimization through architecture decisions, resource utilization improvements, and operational scale strategies. Required Qualifications * 10+ years of experience building large-scale distributed systems in SaaS, networking, or security platform environments. * 3+ years of experience in a Staff, Principal, or Architect-level role with end-to-end ownership of architecture and delivery. * 5+ years of experience working with SASE, SSE, SD-WAN, secure web gateway, cloud firewall, VPN, or ZTNA technologies, including large-scale gateway or concentrator deployments. * 3+ years of hands-on experience designing or supporting multi-tenant architectures, including tenant-aware configuration, telemetry, usage controls, and resource isolation models. * Strong hands-on experience with backend engineering languages such as PHP and GOLANG. * 3+ years of experience with private or public cloud platforms such as AWS, OCI, or similar cloud environments. * Experience with distributed systems technologies including Kafka, Redis, Cassandra, ELK stack, or similar messaging, data, and observability platforms. * 3+ years of production experience with containers, Kubernetes, cloud-native service design, autoscaling, resilience patterns, and multi-region deployments. Preferred Qualifications * 3+ years of experience working with data plane concepts such as IPSec, WireGuard, TLS-based tunnels, routing, policy enforcement, and private-network connectivity. * 3+ years of experience with CI/CD pipelines, infrastructure-as-code tools such as Terraform or CloudFormation, and observability frameworks for distributed systems. * Demonstrated ability to mentor senior engineers, influence architecture across multiple teams, and translate complex technical strategy into executable delivery roadmaps. 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.
What you’ll do
Lead the architecture and technical design of cloud-native, multi-tenant SASE control-plane services and distributed gateway fleets. Define orchestration patterns and partner with data-plane teams to ensure scalable, resilient, and cost-efficient platform capabilities.
Requirements
Requires over 10 years of experience in large-scale distributed systems with specific expertise in SASE, SSE, or SD-WAN technologies. Must be proficient in PHP, Golang, and cloud platforms like AWS or OCI, with a proven track record in Staff or Architect-level roles.
Listed skills
- Kubernetes · Preferred
- CI/CD · Preferred
- Go · Preferred
- Redis · Preferred
- PHP · Preferred
- Amazon Web Services · Preferred
- Terraform · Preferred
Other relevant skills
Identified from the job description. Confirm important requirements above.
- Cloud Native Architecture
- SASE
- Distributed Systems
- Multi-tenancy
- PHP
- Golang
- AWS
- Kubernetes
- Kafka
- Redis
- Cassandra
- ELK Stack
- CI/CD
- Terraform
- Infrastructure as Code
- Network Security
Job areas
- Software
- Technology
- Engineering
- Security & Safety
- Management & Leadership
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