Senior Platform Software Engineer - Developer Platform

Preply; Greater London; On-site; GBP 110,000 - 160,000; Full time

Benefits offered by this job

Lessons allowance for Preply.com

Learning & Development budget

Equity

Career growth opportunities

Job summary

Preply is seeking a Platform Software Engineer within the Developer Platform team. You will build and operate CI/CD systems and dev tooling that enable Preply engineers to ship quickly and safely.

You’ll own the developer journey from coding through testing and deployment, and you will shape internal platforms and tooling to reduce friction and accelerate delivery. AI-native workflows will play a key role in improving processes and quality gates.

Qualifications

• CI/CD depth: hands-on experience building and operating CI/CD systems at scale.
• Extensive backend experience (~8 years) designing and building complex systems.
• Proficiency in Python for platform services and automation.
• AI expertise: hands-on with agentic AI to improve workflows.
• Experience building developer platforms and internal tooling.

Responsibilities

• Build and operate CI/CD systems, tooling and platforms for rapid, safe shipping.
• Own the developer journey from code writing to deployment.
• Develop internal platforms and tooling to improve developer productivity.
• Provide infrastructure and paved paths for autonomous building, testing and shipping.
• Leverage AI-native workflows to improve the software lifecycle and safety nets.
• Participate in incident rotation and use data to drive platform improvements.
• Partner with engineering teams to drive adoption and coordinate changes.

Job description

We power people's progress.

At Preply, we're all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it's creating real impact.

We've just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries - and we're only getting started. As a category-defining company, we're shaping what the future of learning looks like at global scale.

Every Preply lesson sparks change, fuels ambition, and drives progress that matters. Joining Preply means helping define the future of education at global scale, and building something that truly matters for millions of people, every day.

Meet the team!

The Platform Tribe builds and operates the platform that Preply engineers develop and deploy on, and that millions of learners and tutors rely on every day. Our platform handles over 20bln requests per month, and we combine software engineering, distributed systems and cloud infrastructure to keep it reliable at scale while making it faster and easier for engineering teams to build on top of it.

As part of the Developer Platform team, you'll focus on:

• CI/CD and testing: owning and evolving the systems and workflows that help engineers test, validate and deploy code quickly and confidently.

• Developer experience and productivity: making it faster, simpler and more enjoyable for engineers to build and ship high-quality software.

• Developer tooling and paved paths: building scalable tools and abstractions that reduce friction and enable teams to work autonomously.

• AI-native development: using AI and agentic workflows to rethink and improve how software is developed and shipped at Preply.

We work in small teams with significant ownership, so you'll have a real say in architecture, technical decisions and how our platform evolves.

We have diverse technical challenges that will allow you to develop your skills across the stack - sometimes we write about them in our Engineering Blog! Please, also visit our Tech Radar and our YouTube channel to learn more about the technologies we use at Preply!

What you'll be doing:

As a Platform Software Engineer in the Developer Platform team, you'll build and operate the CI/CD systems, tooling and platforms that let Preply engineers ship quickly and safely.

• Build and improve CI/CD systems, testing capabilities, and paved paths that enable engineers to ship quickly and safely.

• Own and evolve the developer journey from writing code through testing and deployment.

• Build internal platforms, services, and developer tooling to turn developer experience friction into scalable engineering solutions.

• Provide the infrastructure and paved paths that let both engineers and coding agents build, test and ship autonomously.

• Use AI and agentic workflows to rethink and improve the software development lifecycle, and set up the quality gates and safety nets that keep them trustworthy.

• Operate what you build: take part in the team's support and incident rotation, and use data and developer feedback to measure and continuously improve the platform.

• Partner with engineering teams as the users of the platform, driving adoption of your tooling and aligning stakeholders across squads so changes land smoothly.

What you need to succeed:

• CI/CD depth: strong hands-on experience building and operating CI/CD systems and pipelines at scale, including the reliability, performance and cost trade-offs that come with them.

• Extensive experience (~8 years) designing and building complex backend software systems.

• Software engineering skills, including Python, which we use to build platform services, developer tooling and automation. You do not need to be a Python-first backend engineer, but you should be productive in it.

• AI Expertise: You're a forefront user of Agentic AI. You're able to bring hands-on experience and start influencing the team beyond code generation; reserving judgment for architecture, business logic, and security, using AI as a thought partner and being able to set up quality gates and safety nets to enhance existing engineering workflows and propose AI-native alternatives.

• Experience building developer platforms, internal developer tooling, developer productivity or developer experience solutions.

• Experience designing platforms and tooling for engineers as internal users, with a strong understanding of developer needs and workflows.

• Familiarity with cloud-native environments and distributed systems.

• Business-oriented and data-driven approach.

• Strong communication skills. Minimum C1 English level.

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.

Our Principles

• Care to change the world - We are passionate about our work and care deeply about its impact to be life changing.

• We do it for learners - For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.

• Keep perfecting - To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.

• Now is the time - In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.

• Disciplined execution - What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.

• Dive deep - We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.

• Growth mindset - We proactively seek growth opportunities and believe today's best performance becomes tomorrow's starting point. We humbly embrace feedback and learn from setbacks.

• Raise the bar - We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.

• Challenge, disagree and commit - We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.

• One Preply - We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other's progress.

Diversity, Equity, and Inclusion

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.