Principal DevOps Engineer

About the job Department: Tech Operations Location: United Kingdom Description About Intermedia Are you looking for a company where YOUR VOICE is heard? Where you can MAKE A DIFFERENCE? Do you THRIVE in a FAST-PACED work environment? Do you wake every morning EXCITED to work with GREAT PEOPLE and create SUCCESS TOGETHER? Then Intermedia is the place for you. Intermedia has established itself as a leading provider of cloud communications and collaboration tech that allows companies to connect better. We have a strong track record of growth, profitability, and creating an environment where everyone matters. Everyone. While we are fast-paced and admittedly a bit intense, we promise that you won’t be bored. You will find Intermedia is a place where you can indulge your passion for creating and supporting great cloud technology. What’s more, we always look to promote from within and have many employees who have been with us 10, 15, and 20+ years! Culture at Intermedia is built on teamwork and transparency. We hold each other accountable and always have each other’s back! Are you ready to make your mark? About The Role While primarily remote, this role requires occasional visits to the Bristol office or London. We are looking for a Principal DevOps Engineer to serve as the technical lead and architect for infrastructure, automation, and deployments. You will define standards and reference architectures, lead complex initiatives across Windows/Linux platforms (with deep expertise in Windows clustering), and own end-to-end reliability—from Infrastructure as Code to release engineering and observability. What You Will Be Doing Act as technical lead for DevOps/Platform/Release engineering: set direction, standards, and best practices Architect and govern end-to-end delivery: infrastructure provisioning, configuration management, CI/CD, release processes, and operations Design and support Windows-based high availability solutions, with deep ownership of Windows clustering (failover/HA patterns, maintenance, upgrades, troubleshooting) Lead Linux automation and platform standardization (configuration, patching, hardening, performance tuning) Own Infrastructure as Code strategy with Terraform (modules, environments, state, governance) Own automation strategy with Ansible (reusable roles, inventories, secure secrets handling, idempotency) Build and standardize deployments using Octopus Deploy, GitHub, and Ansible (templates, shared steps, release promotion, rollback) Design and mature CI/CD pipelines (artifact versioning, approvals, promotion strategy, policy-as-code where applicable) Establish observability standards using VictoriaMetrics/Prometheus (metrics strategy, alerting, SLO/SLA monitoring, dashboards) Provide production leadership: incident response, RCA/postmortems, reliability improvements, capacity planning Mentor engineers, review designs/code, and raise overall engineering quality across teams Produce and maintain architecture docs, runbooks, and platform roadmaps What You Will Bring To The Role Bachelors degree in Computer Science or related field 7+ years (or equivalent) in DevOps / SRE / Infrastructure Engineering, including leadership in complex environments Expert-level experience designing and operating Windows Server HA and clustering (Failover Clustering and related components) Strong Linux administration and automation experience (systemd, networking, storage, performance) Advanced skills with Terraform and Ansible (architecture, reusable components, secure operations) Strong deployment/release engineering experience with Octopus Deploy and GitHub (release governance, environment promotion, rollback) Monitoring/observability expertise with VictoriaMetrics and/or Prometheus (alerting strategy, metrics design, operational readiness) Production experience running Redis, RabbitMQ, Nginx (HA, tuning, troubleshooting) Strong understanding of networking and security fundamentals (TLS, DNS, load balancing, firewalling, least privilege) Proven ability to lead cross-team initiatives, make architectural decisions, and communicate clearly Kubernetes and container ecosystems (Docker, Helm) Nice to have CI/CD platforms beyond GitHub (GitLab CI, Jenkins) Logging platforms (ELK/EFK, Loki) DR/BCP design, backup automation, zero-downtime upgrade strategies PowerShell and advanced scripting, configuration governance, secrets tooling (Vault/SOPS) Experience with Virtualization platforms such as VMWare or HyperV Experience in building, configuring, and tuning highly available MS SQL Server environments Experience in managing VOIP components and protocols (SIP , FreeSwitch, OpenSIP, session border controllers) Experience with load balancing components ( F5 LTM, F5 GTM) Experience with administering AWS or Azure tenants Diversity, Inclusion, and Equal Opportunity We hire, promote, and compensate employees based on their ability to perform their job responsibilities, without regard to race, color, creed, religion, sex, gender, marital status, national origin, ancestry, age, citizenship, physical or mental disability, sexual orientation, or any other basis protected by applicable law (collectively referred to in our Code of Conduct as “Protected Classes”). We do not tolerate employment discrimination in the workplace, and we are committed to making reasonable accommodations for identified disabilities or other limitations as required by all applicable laws. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.