Senior DevEx (DX) Engineer in Platform Location: London, United Kingdom

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 role

Are you passionate about improving the developer experience?
Are you passionate about improving the tooling and process for developing, building & releasing software?
Are you excited to help our engineering teams use AI to improve & streamline their processes?
If you recognise yourself in most of the above questions, keep reading!

What you’ll be doing:

• Unlock Developer Productivity : Identify and resolve pain points in code, build, test, and deployment workflows to make our engineers’ lives easier.
• Support : Become the go-to expert for diagnosing and resolving development environment and tool issues.
• Tool Evaluation : Test, evaluate, and investigate software development tools, and collaborate with vendors to elevate our development process.
• Automation : Automate repetitive tasks and streamline development workflows.
• Collaboration : Partner with other tribes and squads in Platform tribe to deliver the best tools and practices for development workflows.
• Documentation and Training : Develop clear guidelines and conduct training sessions to help developers adopt new tools and processes.
• Onboarding : Simplify the onboarding process with user-friendly, self-service development environments.
• Technical Excellence: Help improve the Backend engineering experience and keep our tooling in tip top shape, including AWS running infrastructure and tools supporting our engineers.
• Data-Driven Improvements : Make measurable improvements to our CI/CD pipelines, ensuring fast and reliable builds (currently around 90 deployments per day).
• Infrastructure Optimization : Maintain and optimize our development and testing infrastructure to provide stable and efficient environments.

What you need to succeed:

• Experience optimizing developer workflows and improving engineering productivity
• Proven track record of building and maintaining CI/CD pipelines (Jenkins and GitHub Actions)
• Experience with Kubernetes in production or with developer environments
• Strong understanding of testing infrastructure and proven ability to improve test stability
• Measuring and improving developer productivity metrics
• Experience with infrastructure as code (Terraform) and AWS services
• Ability to identify inefficiencies in development processes and implement solutions
• High level of self-organization, ownership, and responsibility
• Data-driven approach to problem solving and improvement measurement

Diversity, Equity, and Inclusion

Preply is committed to creating a diverse and inclusive environment where people from all backgrounds can thrive. Different opinions and viewpoints are key ingredients in our success as a multicultural Ed-Tech company.

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. Together, we are The World Class.

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