> Markdown version of [/jobs/ext/96789-senior-platform-engineer](https://www.wearedevelopers.com/jobs/ext/96789-senior-platform-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Platform Engineer - **Company:** Definely - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Software as a Service, Databases, Continuous Integration, DevOps, Cloud Services, Caching, Data Management, Machine Learning Operations, Terraform, Devsecops - **Published:** May 15, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=4a4c48db091dc4fe ## About the Role Do you have experience in Terraform?, * Strong experience in platform engineering, DevOps, or Infrastructure roles * Expertise in Cloud tools and services (AWS is our primary cloud) * Deep understanding of DevOps SRE practices * Directing and architecting robust and resilient cloud services through IaC (we use Terraform) * Knowledge of highly performant and strongly governed CI/CD practices and tooling * Ability to lead technical projects and make pragmatic architectural decisions, * Have experience with security products and tooling, and DevSecOps experience in a highly dynamic environment * Have experience leading incident response and post incident reviews * Deep experience with data platforms (databases, queues, caches, storage etc.) * Have experience building AI/ML infrastructure or workloads * Have worked in high growth SaaS or startup environments ## Description We're looking for an exceptional Senior Platform Engineer to join Definely during a pivotal stage of growth. Senior Platform Engineers get involved with the whole product infrastructure and tooling, building out novel and scalable solutions for engineers and customers. We're also responsible for reliability, security and automation., The work we do in platform is broad and deep, but in a normal week you'll be involved in: * Own the operational performance of our systems, analysing repetitive work and toil, and automating where most advantageous * Manage our CI/CD system and improve the developer experience whilst maintaining error budgets and deployment safety * Design and architect our platform to support product needs at a strategic level * Build a highly robust cloud environment (mostly AWS) through IaC,automation and best-fit architectures * Leading projects of improvement to our platform and ensuring delivery according to plan * Collaborating closely with product engineering, security and leadership teams across the business ## Related Videos - [Platform Engineering vs. DevOps Why not both?](https://www.wearedevelopers.com/videos/885-platform-engineering-vs-devops-why-not-both) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)