Infrastructure Engineer

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About the role

We’re looking for an experienced DevOps Engineer to join our Cloud Infra team at Synthesia. Cloud Infra is a group that enables our Product engineers to build, and deploy Synthesia state‑of‑the‑art technologies.

You can expect to work across cloud infrastructure, CI/CD pipelines, observability, and tooling, with autonomy to identify and fix bottlenecks in a fast‑moving AI company.

This is a hands‑on senior IC role (roughly level 5 scope). You’ll be joining a growing team that’s shifting from enablement to direct execution, and you’ll help shape how we scale our infrastructure over the next year.

What you’ll do

  • Maintain and scale Kubernetes (EKS) clusters — managing workloads, deployments, and monitoring at production scale.

  • Manage and evolve our AWS (and some GCP) cloud environments, balancing reliability, cost, and velocity.

  • Own and improve our CI/CD systems (GitHub Actions on our self‑hosted AWS runners).

  • Define and implement Infrastructure as Code using Terraform and Terragrunt.

  • Strengthen observability via Datadog and enable teams to understand their systems in production.

  • Collaborate with Product Engineers to deploy and monitor production services.

  • Drive FinOps practices: vendor management, cost allocation, and financial feedback loops.

  • Contribute to internal tooling, automation, and reporting platforms that improve developer experience.

You’ll thrive in this role if you have:

  • Deep hands‑on DevOps / SRE / Platform experience in a SaaS or high‑traffic product environment.

  • Strong Kubernetes experience – spinning up and managing clusters, not just consuming them.

  • Proven AWS and/or GCP expertise.

  • Proficiency with Terraform / Terragrunt, Linux, and Python scripting.

  • Strong understanding of CI/CD design patterns.

  • Experience with Datadog or similar observability tooling.

  • Comfortable operating autonomously in ambiguous environments.

  • A pragmatic mindset – focusing on scalable, maintainable solutions over theoretical perfection.

  • A bias toward execution and written communication, especially in remote contexts.

Bonus points

  • Familiarity with Temporal.io, or workflow orchestration frameworks.

  • Light frontend or tooling development experience (React, Node.js).

  • Previous work supporting AI research or data‑intensive environments.

Other important info

  • This is a remote role from an EU country, UK or Switzerland or hybrid from one of our London, Munich, Copenhagen, or Zurich hubs.

  • This is full‑time employment only – no contractors possible – usually through OysterHR or a local entity.

  • We only sponsor visas if you are in the UK or some EU countries already.

#J-18808-Ljbffr”, “datePosted”: “2026-04-21”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Synthesia”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__409231964__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=33” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
Company: Synthesia
Apply for the Infrastructure Engineer
Location: London
Job Description:

About the role

We’re looking for an experienced DevOps Engineer to join our Cloud Infra team at Synthesia. Cloud Infra is a group that enables our Product engineers to build, and deploy Synthesia state‑of‑the‑art technologies.

You can expect to work across cloud infrastructure, CI/CD pipelines, observability, and tooling, with autonomy to identify and fix bottlenecks in a fast‑moving AI company.

This is a hands‑on senior IC role (roughly level 5 scope). You’ll be joining a growing team that’s shifting from enablement to direct execution, and you’ll help shape how we scale our infrastructure over the next year.

What you’ll do

  • Maintain and scale Kubernetes (EKS) clusters — managing workloads, deployments, and monitoring at production scale.

  • Manage and evolve our AWS (and some GCP) cloud environments, balancing reliability, cost, and velocity.

  • Own and improve our CI/CD systems (GitHub Actions on our self‑hosted AWS runners).

  • Define and implement Infrastructure as Code using Terraform and Terragrunt.

  • Strengthen observability via Datadog and enable teams to understand their systems in production.

  • Collaborate with Product Engineers to deploy and monitor production services.

  • Drive FinOps practices: vendor management, cost allocation, and financial feedback loops.

  • Contribute to internal tooling, automation, and reporting platforms that improve developer experience.

You’ll thrive in this role if you have:

  • Deep hands‑on DevOps / SRE / Platform experience in a SaaS or high‑traffic product environment.

  • Strong Kubernetes experience – spinning up and managing clusters, not just consuming them.

  • Proven AWS and/or GCP expertise.

  • Proficiency with Terraform / Terragrunt, Linux, and Python scripting.

  • Strong understanding of CI/CD design patterns.

  • Experience with Datadog or similar observability tooling.

  • Comfortable operating autonomously in ambiguous environments.

  • A pragmatic mindset – focusing on scalable, maintainable solutions over theoretical perfection.

  • A bias toward execution and written communication, especially in remote contexts.

Bonus points

  • Familiarity with Temporal.io, or workflow orchestration frameworks.

  • Light frontend or tooling development experience (React, Node.js).

  • Previous work supporting AI research or data‑intensive environments.

Other important info

  • This is a remote role from an EU country, UK or Switzerland or hybrid from one of our London, Munich, Copenhagen, or Zurich hubs.

  • This is full‑time employment only – no contractors possible – usually through OysterHR or a local entity.

  • We only sponsor visas if you are in the UK or some EU countries already.

#J-18808-Ljbffr…

Posted: April 21st, 2026