Senior DevOps Engineer

AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams visibility and control across every tool and workflow so companies can move faster with AI while minimizing risk.

We operate in one of the fastest-moving spaces in tech: the emerging intersection of AI and cybersecurity. It's a market still being defined, and we're among the first to build natively for it - protecting sensitive data in real time, at the endpoint, with minimal friction for the teams using it. Enterprises get full visibility and control. Their people get to innovate without guardrails slowing them down.

Named to the Rising in Cyber 2026 list, Harmonic is gaining serious recognition and serious traction. We're led by deep cybersecurity expertise and backed by investors who know the space:
N47, Ten Eleven Ventures, and In‑Q‑Tel
.

As AI adoption inside the enterprise accelerates, the ability to safely observe, control, and enforce policy in real time isn't a nice‑to‑have. It's mission‑critical infrastructure. That's what we build.

Harmonic exists to help enterprises adopt AI safely and  hold ourselves to the same standard. Everyone at Harmonic actively uses AI tools to do their best work, from research and writing to building processes and automating workflows. We expect every new hire to bring curiosity about AI and a willingness to use it to work smarter, faster, and more creatively. For some roles, that means tinkering and staying open to new tools.

For others, it means building entirely new systems with AI at the core. We'll be clear about what we expect for each role, and we'll give you the tools and support to get there.

We sell security to some of the most demanding enterprise security teams in the world, and we've held ourselves to that bar from day one. Our engineers have already built a platform architecture we're genuinely proud of - strong foundations across authentication, data isolation, and secrets handling - but it's been built by generalist engineers who split their time across security and everything else on the roadmap.

It's good precisely because good engineers cared about it, not because it had a specialist behind it. Now we want to bring in someone whose full‑time focus is security architecture, to take that foundation and push it further than a generalist team has the bandwidth to.

This isn't an audit or compliance function, and it's not a rescue mission. It's an engineering one, building on top of something solid rather than starting from zero.

The Senior Dev Ops Engineer is responsible for designing, building and maintaining the highly scalable infrastructure that powers our applications. This role is a blend of automation, infrastructure design and CI/CD pipeline development.

• Your primary focus is the automation and standardisation of our cloud infrastructure and deployment processes.
• Develop reusable modules to enforce consistency and best practices across all environments.
• Design and implement highly available and fault‑tolerant architectures on AWS utilising multiple AZs and regions.
• Build, maintain, and optimise CI/CD pipelines using Git Lab CI/CD. Manage and configure Git Lab Runners (specifically on Docker or AWS EC2/ECS) for scalable and efficient job execution, ensuring fast feedback loops for developers.

• You evangelise and implement Dev Ops best practices, including shift‑left security, monitoring, alerting and logging.
• The platform provides an outstanding experience with minimal friction for both the development and operations teams, allowing everyone to do their best work.
• Highly available, well‑maintained platform backed by repeatable processes that allow us to meet and exceed the highest standards for security and resilience.

• Experience with infrastructure as code tooling (preferably Terraform/Open Tofu).
• Experience with cloud services (preferably AWS).
• Understanding of networking and web applications.
• Knowledge of Docker and container…