Software Development Engineer II at 365 Command

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.

We are looking for an experienced Backend Engineer with strong experience in Linux networking and backend development (Go as primary, PHP for API layer) to help shape the next iteration of our SASE platform.

You will work on core gateway components, networking features, and backend services, improving performance and reliability of systems operating at scale.

This role is ideal for engineers who enjoy working close to the Linux networking stack, understand advanced networking concepts, and are comfortable solving complex, high-impact production problems.

What You Will Do:

Design and develop backend services and APIs for SASE control plane and gateway orchestration
Build and maintain services using Go (primary) and PHP (API layer)
Implement and enhance Linux networking features, including:
Namespaces, veth, routing
netfilter / iptables / nftables
DNS, IPsec, WireGuard, VPN and tunneling orchestration
Firewalling and high-throughput data paths
Contribute to platform modernization:
Migration to lightweight Linux OS images
Containerization and workload optimization (EKS/ECS)
Progress toward multi-cloud and vendor-agnostic architecture
Improve performance, scalability, observability, and reliability
Troubleshoot complex production issues (networking, VPN, distributed systems, performance)
Collaborate with DevOps, Security, QA, and Product teams
Participate in architecture and design discussions
Maintain high engineering standards (code quality, testing, documentation)
Mentor junior engineers

Required Skills & Experience:

Strong professional experience with Go (Golang)
Working knowledge of PHP (or willingness to learn quickly)
Experience building APIs, microservices, and platform services
Solid understanding of distributed systems and backend architecture
Experience with PostgreSQL or MySQL

Linux & Networking:

Strong hands-on experience with Linux systems and internals
Advanced Linux networking expertise, including:
Namespaces, veth, routing
netfilter / iptables / nftables
TCP/IP, DNS, IPsec, WireGuard
Ability to debug packet flow and system-level networking issues
Experience working with networking systems (gateways, firewalls, VPN endpoints)

Cloud & Tooling:

Experience with Docker and Kubernetes (EKS or similar)
Familiarity with CI/CD pipelines and automation tools

Nice to Have:

Experience in SASE, networking, or security domains
Background as a Linux system administrator
Knowledge of SDN, NFV, or virtual networking functions
Exposure to security technologies (NGFW, IDS/IPS, DNS filtering)

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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Software Development Engineer II