Senior Platform Cloud Engineer Location: London

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalized learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact. So far, 90,000 tutors have delivered over 20 million lessons to learners in more than 175 countries. Every Preply lesson sparks change, fuels ambition, and drives progress that matters.

The SRE team unites infrastructure, engineering and business to ensure great synergy that helps Preply succeed. Our main focuses are:

• Top in the industry uptime record and latency.
• Develop core services & tooling powering our Platform.
• Running infrastructure in a cost effective way.

We work in small teams, thus you will be able to influence system design and contribute a lot in the company's growth. We promote self-direction to work on meaningful projects, while we also strive to create an environment that provides the support and mentorship needed to learn and grow. We have diverse technical challenges that will allow you to develop your skills across the stack.

What you’ll be doing

The Platform Cloud Engineer at Preply is an AWS specialist who helps us run our cloud based Platform. In this role, you will bring deep knowledge and expertise to participate in system design, regular maintenance but also address operational issues as Preply scales its user base. You will also help improve cost efficiency and be up to date with latest developments and how the company can benefit from them. You will partner up with other teams to leverage their expertise and deliver projects successfully.

• Own the availability and performance of mission‑critical services and build automation to prevent problems recurrence.
• Improve the system’s scalability, observability, and alerting.
• Build tooling to improve our platform and accelerate the overall software development.
• Practice sustainable incident response and blameless postmortems.
• Collaborate with product teams to help them tackle technical issues and design new systems.
• Strengthen credibility with the quality of the team's technical execution.
• Follow the best FinOps practices.
• Participate in on‑call rotation across the team.

What you need to succeed

• Expertise in designing, building, maintaining and troubleshooting high traffic distributed systems in the cloud.
• Strong experience in AWS services and infrastructure, particularly with Kubernetes, Load Balancers, Kafka, Networking.
• Strong experience in CDN, Edge Ingress setup.
• Highly proficient with Terraform.
• Experience in implementing observability and alerting.
• Proficiency with production troubleshooting.
• Business‑orientation and data‑driven approach.
• Willingness to participate on paid on‑call rotations.
• Strong communication skills.
• Minimum B2 English level.

Nice to have: coding experience, knowledge of modern web frameworks; SQL and relational DBs.

Why you’ll love it at Preply

• Open, collaborative, dynamic and diverse culture.
• Generous monthly allowance for lessons on Preply.com.
• Learning & Development budget, including time off for your self‑development.
• Competitive financial package with equity, and leave allowance.
• Opportunity to shape the lives of learners and tutors from over 175 countries through language learning and teaching.

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed‑Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.