At Preply, we are powering people's progress.
We create life-changing learning experiences by helping people find the magic of the best tutors, a personalized journey, and the motivation that helps people learn and keep learning.
Over 90,000 tutors teach more than 50 languages to learners from over 175 countries. Powered by a tenfold increase in revenues over the last three years, Preply is now leading the online language tutoring segment globally and has 700+ employees of over 62 nationalities based across Barcelona, Kyiv, London and the US. Preply is driven by a culture of perfecting the experience we provide to our customers; both consumers and enterprises.
At Preply, we are powering people's progress.
We create life-changing learning experiences by helping people find the magic of the best tutors, a personalized journey, and the motivation that helps people learn and keep learning.
Over 90,000 tutors teach more than 50 languages to learners from over 175 countries. Powered by a tenfold increase in revenues over the last three years, Preply is now leading the online language tutoring segment globally and has 700+ employees of over 62 nationalities based across Barcelona, Kyiv, London and the US. Preply is driven by a culture of perfecting the experience we provide to our customers; both consumers and enterprises.
What they do: Human-led, AI-enabled online tutoring marketplace for language and other subjects
Scale: 100,000+ tutors teaching 90+ languages across ~180 countries
Size & footprint: 700+ employees; hubs in New York, London, Kyiv, Barcelona
Recent financing: Raised $150M Series D in Jan 2026 at $1.2B valuation
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Company Overview
Problem Domain
Online education and language learning marketplace
Founded
2012
Industry
Technology, Information and Internet
Funding Track Record
Series D- January 2026
$150,000,000
Valuation reported at $1.2 billion
Series C (extended)- July 2023
$120,000,000
Extended Series C via combination of equity and debt
Growth round / 2022 financing- July 2022
$50,000,000
Series B- 2021
$35,000,000
Investor Signal
“Participation from growth and edtech investors including WestCap, Owl Ventures, Hoxton Ventures, Full In Partners, Point Nine Capital, Horizon Capital”
Founders
What we do
Join the Team
Staff Machine Learning Platform/Ops Engineer
On-SiteBarcelona provincia, ES
On-Site • Barcelona provincia, ES
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 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.
About the role
We're hiring a Staff ML & Data Engineer to own and evolve Preply's ML platform. You will design the systems that enable our ML teams to move from research to production seamlessly — at scale, across clouds, and with minimal friction.
This role blends strategic platform architecture with deep hands-on engineering. You'll partner with Engineering and ML leadership to define standards, introduce new tooling, and eliminate barriers to deploying reliable, cost-efficient, and observable ML systems.
Your mission
Lead the design and implementation of Preply's ML platform architecture: from experiment tracking and artifact management to scalable model deployment
What we're looking for
8+ years of engineering experience in large-scale Data/ML platforms, with proven ability to architect and scale production-grade systems supporting dozens of ML use cases
Deep knowledge of cloud services and strong understanding of end-to-end ML workflows, including versioning, monitoring, and performance benchmarking
Experience with working with scientists and building enabling tools for them.
Excellent communication and influence across cross-functional teams; motivated by product impact. Mentoring and coaching ML engineers.
Familiarity with LLM frameworks (LangChain, LlamaIndex), vector stores, and retrieval infrastructure
Why you'll love it at Preply:
An open, collaborative, dynamic and diverse culture;
A generous monthly allowance for lessons on Preply.com, Learning & Development budget and time off for your self-development;
A competitive financial package with equity, leave allowance and health insurance;
Access to free mental health support platforms;
The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)
Our Principles
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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Drive cloud-native solutions for distributed training and inference, including GPU-based training environments, autoscaling, and rollout strategies
Own technical direction for CI/CD for ML, incorporating testing, validation, and performance checks into every deployment pipeline
Embed observability best practices across ML workflows: metrics, alerts, drift detection, lineage
Act as a multiplier across engineering: mentoring, influencing standards, and de-risking complex technical decisions
Partner with ML Leads and Product teams to align platform direction with experimentation velocity, cost-efficiency, and user impact
Design and lead building ML services are modular, testable, and monitored from day one
Contribute to LLM platform capabilities, including RAG pipelines, latency-optimized inference, and prompt experimentation frameworks
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.
