Senior Platform Engineer in London

Joining Busuu means being part of one of the top EdTech companies in the world, a multiple award‐winner recognised for its innovation and impact in language learning. Busuu's vision is to empower people through languages. We are the world's largest online community for language learning, with 120+ million registered users. We make learning a language easy by combining AI-powered courses with feedback from our global community of native speakers and lesson content designed for real life.

At Busuu, we're building technology that helps millions of people learn languages every day. We're looking for a Senior Platform Engineer to help us design, scale, and improve the infrastructure that powers our platform. You'll be part of a team focused on reliability, automation, and observability — enabling our engineers to deliver faster and with confidence.

What you'll do:

• Build and scale reliable cloud infrastructure, preferably in AWS (experience with Google Cloud is also great).
• Operate and optimise Kubernetes clusters at scale.
• Improve observability across systems using OpenTelemetry and New Relic.
• Automate infrastructure and deployments with Terraform, Terragrunt, and GitOps (ArgoCD).
• Design and evolve secure, scalable network architectures across multiple environments.
• Collaborate on CI/CD pipelines (GitHub Actions) and contribute to improving developer experience.
• Participate in our on‐call rotation, ensuring reliability and quick incident response.

What makes a great Senior Platform Engineer at Busuu?

• A solid foundation in cloud infrastructure, Kubernetes, and Infrastructure as Code.
• Hands‐on experience with monitoring, tracing, and logging.
• Strong understanding of networking principles, routing, and connectivity in cloud‐native architectures.
• Programming or scripting skills (Python preferred).
• Familiarity with databases (MySQL/PostgreSQL, MongoDB, Redis) and Kafka or similar event systems.
• A problem‐solving mindset, comfortable taking ownership and learning new things on the fly.

Nice to have:

• Experience supporting AI/ML workloads (model deployment, scalability, observability).
• Expertise in database performance tuning.
• Experience working remotely in distributed teams.

At Busuu we want to ensure that you have access to some great benefits:

• Our centrally located offices are well‐equipped with free breakfast, plenty of snacks and fresh fruit.
• You get 2 free lunches per week at our office that you can choose out of a wide selection of restaurants in the area.
• Busuu offers a great Private Health Insurance scheme.
• There is a personal training budget just for you, so you can learn more in your field to ensure our employees can continuously grow and progress in their careers.
• We like to support our teams with their work‐life balance so we offer flexible working hours and a hybrid model of working.
• We offer enhanced maternity and paternity leave.
• Staying connected as a team is very important to us, so we have lots of social activities for you to join such as team lunches, Thursday socials, quarterly team, and company events.

What happens next:

• CV application review – We will review it as quickly as possible.
• Let's chat – Quick chat with our recruiter about your experience and the role.
• Culture fit interview – On‐site or video call with the Engineering Manager.
• Technical questions – Technical call with the team.
• Technical test – We will send you a technical test to complete in your time.
• Coding review – Technical interview and task review with the team.

Our platform is for everyone, and so is our workplace. We pride ourselves on embracing our differences, whether they're cultural, racial, religious, or otherwise. This means each one of us comes to work knowing that we have a voice – and a safe, judgement‐free zone to speak freely. If you like the sound of that, join us. We'd love to hear what you have to say.