Sr/Network Security Engineer (SASE / SD-WAN)

Job Summary

This is a position for someone who's growth-oriented. We hire for trajectory. You operate and migrate SASE infrastructure for enterprise customers at the industry's highest service level. We run our own stack. Internal training brings you up on the product; you bring the networking.
You absorb fast, take ownership without being asked, and convert ambiguity into shipped work. You get pulled into your interests and go further than the situation required. If you are looking for a defined scope and a stable five-year plateau, this is the wrong role.

You will

• Migrate and deploy customer environments: firewalls, secure web gateways, ZTNA, SD- WAN, IPSec, hybrid cloud interconnect to Azure.
• Run high-stakes operations: incident response, root-cause analysis, change execution under customer SLA.
• Talk to customer engineers and architects directly. Communicate clearly, technically, and professionally.
• Automate. Python, bash, vendor APIs. Manual repetition is a defect.
• Coordinate with internal DevOps and platform teams on shared infrastructure.

Required

• Production experience operating enterprise network and security stacks at the CLI on devices that assume you know what you're doing. Advanced NAT, policy routing, BGP, OSPF, IPSec troubleshooting on the wire. You love tcpdump.
• Production experience with at least one major SASE/NGFW vendor: Fortinet, Palo Alto, Cisco, Zscaler, Netskope, Cato, or equivalent. Depth in one beats exposure to many. Transfer to our stack is your responsibility.
• Azure networking in production: VNets, peering, gateways, hybrid connectivity.
• Python or bash against vendor APIs in production.
• Customer-facing English on the phone, under pressure, with technical and non-technical counterparts.
• Hands-on every day. The CLI is where you live, the config is what you ship.

Preferred

• PCNSE, NSE 7+, CCNP Security, or equivalent depth.
• Bachelor's in CS, IT, or telecom, or a track record that makes the question irrelevant.
• MSP or carrier background operating against external SLAs.

On evidence
Anyone can write a good story now. We read for what you have done.
Send evidence. Projects you built, broke, and rebuilt. A homelab that outgrew any reasonable need. A scripting habit that started because something annoyed you. A configuration you reverse-engineered because the documentation was wrong. A hobby unrelated to networking that you have gone deep on.

Degrees and certifications are signals. Evidence is the thing.

On growth
We build small, high-density teams and pay competitively for the people who belong on them. Growth here means scope, ownership, harder problems, and compensation that tracks the value you create. Roles will evolve as the company grows.
If this is for you, you will know it on the first morning. You walk in and everyone around you is excellent at what they do, raising the floor you stand on. That is the team we are building, deliberately. If you want to be in it, we want to talk.

About Open Systems:
Backed by the Service Experience Promise, Open Systems simply and cost-effectively connects and secures hybrid environments and thus ensures your organization can meet business objectives. Open Systems uniquely focuses on a superior user experience when helping organizations reduce risk, improve efficiency, and accelerate innovation. The Open Systems SASE Experience delivers on the promise of ZTNA with a comprehensive, unified and easy-to-implement and use SASE platform that combines SD-WAN and Security Service Edge delivered as a Service. We provide 24x7 operational management and engineering support from assigned engineering teams and ensure affordable and predictable costs.

What we offer:
Want to join a team that enjoys making secure connectivity simple for our customers? You’ll be among people who believe in:
Caring PASSIONATELY about keeping our customers safe – We’re dedicated to solving problems. Whatever it takes.
Thinking UNCONVENTIONALLY to stay ahead – The world never fails to surprise us. So let’s surprise it first.
Doing the hard work to make things SIMPLE – Craft and hone something that delights in its simplicity.
Working COLLABORATIVELY to build success – The power of the team will always make us faster and better.

Concretely, that means:

• Boot-camp onboarding. You arrive with strong fundamentals. We take you to expert on our stack.
• Heavy investment in training. Deep technical courses and exchange programs across our global engineering teams.
• Flexible hours. Our engineers in India have shaped this into something that actually works for their lives, not a policy on paper.
• Competitive compensation.

As a testament to this, Open Systems has been recognised as an outstanding place to work. You’ll be surrounded by smart teams who enrich your experience and provide opportunities you will need to develop your skills and advance your career. We look forward to receiving your online application (please note that you need to compress your application into two attachments). Only direct applications will be considered. Discover more at open-systems.com.