Role Description The Senior DevOps 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. What You’ll Do - 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 GitLab CI/CD. - Manage and configure GitLab Runners (specifically on Docker or AWS EC2/ECS) for scalable and efficient job execution, ensuring fast feedback loops for developers. What Success Looks Like - You evangelise and implement DevOps 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. Qualifications - Experience with infrastructure as code tooling (preferably Terraform/OpenTofu). - Experience with cloud services (preferably AWS). - Understanding of networking and web applications. - Knowledge of Docker and container orchestration platforms. - Knowledge of Linux/Unix based operating systems. - Experience of CI/CD tooling (GitLab, GitHub, etc.). - Experience of troubleshooting issues with infrastructure and web applications. - Proficient in one or more scripting languages (Bash, Python etc.). - Experience with monitoring and log management tooling (Prometheus, Grafana, ELK, CloudWatch etc.). - Experience working within a fast moving software development organisation. You Might Be a Fit if You - Have a solid understanding of development processes; you likely started as a developer before moving into DevOps and identify as "more Dev than Ops." - Love the idea of building and maintaining resilient, modern infrastructure designed to handle massive, high-concurrency workloads. - Thrive in fast-paced startup environments where ambiguity is common and you have the agency to solve it. - See AI as a fundamental tool to help you architect, deploy, and monitor systems smarter, faster, and better. - Actively use AI tools (Claude Code, Cursor, or similar) to accelerate your work, from writing IaC and debugging pipelines to researching and prototyping new architecture. - Stay current on how AI is changing the DevOps and SRE domains, with strong opinions on where it adds value and where it introduces risk. - Refuse to default to the infrastructure playbook you've been running for the last decade—instead, you look for ways to automate the mundane and rethink legacy workflows. - Choose to spend your energy on the complex engineering problems that actually require your expertise, rather than manual, repetitive tasks. Why Join Us - This isn't just a job - it's a chance to help define a category. - We believe today's talent is tomorrow's success, and we're committed to creating an environment where you can do the best work of your life. - Recognized momentum: We made the Rising in Cyber 2026 list, a signal that the market is taking notice. - Rare market opportunity: Join early in a category-defining company at the convergence of AI and security, where your work directly shapes how enterprises tackle one of the biggest unsolved problems in tech. - Competitive pay and meaningful equity: A real stake in Harmonic's success, not a token gesture. - Comprehensive benefits: 401K, pension plan, generous PTO, and flexible hybrid work. - A small, high-trust team that values transparency, creativity, and continuous learning - no politics, no bureaucracy. - Thoughtful leadership that cares deeply about your growth, not just your output. - Annual global off-sites: past trips include Lisbon, Portugal and Nashville, TN. - Real ownership: you'll shape the platform, the culture, and the direction of the company from day one. Harmonic's Core Values - 🌱 Flourish in the Unknown: We embrace new, unfamiliar situations that require initiative and rapid decision-making. - 🔥 Never Full: We raise our hands, take on challenges, and assist others whenever possible. - 🤝 Perfect Harmony: We support one another to create cohesion and unity.