Senior Platform Software Engineer - Developer Platform

Engg; London; On-site; NOK 1,007,000 - 1,511,000; Full time

Benefits offered by this job

Lessons allowance

Learning & Development budget

Equity

Leave allowance

Job summary

Preply is hiring a Platform Software Engineer to join the Developer Platform team. You’ll build and operate CI/CD systems and developer tooling, enabling engineers to ship confidently at scale. You’ll own the journey from writing code to deployment, and design scalable internal platforms with AI-enabled workflows.

You’ll collaborate across squads, drive adoption of tooling, and help shape the platform architecture while maintaining reliability and cost awareness.

Qualifications

• Extensive backend design and implementation experience.
• Hands‑on in CI/CD systems at scale with cost/performance trade-offs.
• Proficiency in Python for platform services and automation.
• Experience using AI to improve developer workflows.
• Ability to design and operate internal developer tooling.
• Strong communication and collaboration across squads.

Responsibilities

• Build and operate CI/CD systems and developer platforms.
• Own the developer journey from code to deployment.
• Create internal services and tooling to improve productivity.
• Provide infrastructure and paved paths for autonomous work.
• Apply AI-driven methods to enhance software lifecycles.
• Participate in incident rotation and measure platform impact.
• Collaborate with engineering teams to drive adoption.

Skills

CI/CD systems

Backend engineering

Python

Agentic AI

Developer platform

Cloud-native

Data-driven

Communication

English level C1

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 https://medium.com/preply-engineering! Please, also visit our Tech Radar https://tech-radar.preply.com/?_ga=2.72086362.855941533.1670530539-1369760810.1670530539 and our YouTube channel https://www.youtube.com/@Preplyengineering-ie3bb 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‑orientation 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 http://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