---
title: 'Staff Data Scientist at Preply'
canonical: 'https://feeny.ai/job/staff-data-scientist-preply-london-w1nbvqtq0ey8'
type: 'job'
last_seen: '2026-09-09'
---

# Staff Data Scientist at Preply

- **Company:** [Preply](https://feeny.ai/companies/preply)
- **Location:** London, United Kingdom
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-09-02
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.ashbyhq.com/preply/2e125c5e-420e-4026-8e2f-f4f46b1d1672/application

**Skills:** SQL, Python, Experimentation, Causal inference, Subscription economics, Marketplace economics, LTV modeling, Cohort dynamics, Retention mechanics, Pricing trade-offs, Forecasting, Impact modeling, Scenario analysis, Amplitude, Mixpanel, Heap, Tableau, Looker, Power BI, Advanced analytical methods

> The Staff Data Scientist owns the data strategy for critical product domains such as Growth, Retention, or Marketplace. This role involves defining long-term measurement and experimentation strategies, leading deep analytical investigations into customer behavior, and partnering with leadership to shape product road...

## 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!

At Preply, data is at the heart of every decision we make. We run hundreds of A/B tests to continually optimize our product, each with its own analytical and tracking challenges. The complexity of our subscription model, along with the unique dynamics of tutor-learner interactions, offers an exciting opportunity for those looking to make a real impact.

As a Staff Data Scientist , you will own the data strategy for a critical product domain (e.g., Growth, Retention, Marketplace) and act as the senior analytical authority in that space. You will partner with Directors and VPs across Product, Engineering, and Business to shape long-term strategy, influence investment decisions, and ensure our roadmap is grounded in rigorous, scalable measurement frameworks.

Our Data Team https://www.linkedin.com/posts/preply_data-team-uncovered-activity-7232342101730971652-3ate/?utm_source=share&utm_medium=member_desktop is dedicated to empowering top-quality decision-making. Do you want to know how? Visit our Tech Radar https://tech-radar.preply.com/ to learn about the technologies we use at Preply!

## WHAT YOU’LL BE DOING:

- Develop and formalize a strategic understanding of the key value drivers of your domain, including user behavior, marketplace dynamics, pricing, and long-term unit economics - and translate these into actionable decision frameworks used by leadership.
- Define the long-term measurement and experimentation strategy for your domain, identifying structural growth levers and step-change opportunities beyond incremental optimization.
- Design the experimentation programme in your domain and execute, and evaluate large-scale experiments to test new ideas and measure their effectiveness in driving business outcomes.
- Lead deep analytical investigations into customer behavior and retention dynamics, reframing ambiguous business questions into structured analyses that drive step-change improvements in long-term value.
- Own impact modeling and scenario analysis for major product initiatives, enabling quarterly and annual planning decisions through robust forecasting, trade-off analysis, and risk assessment.
- Own the definition and governance of key metrics within your domain, ensuring clarity, consistency, and alignment with company-level objectives.
- Act as a senior thought partner to product, engineering, and data leaders, driving alignment across teams and elevating analytical standards across the organization.
- Lead cross-domain analytical initiatives (e.g., company-wide LTV modeling, pricing strategy, marketplace health framework).

## WHAT YOU NEED TO SUCCEED:

- Demonstrated track record of materially influencing product or business strategy in complex environments, with clear examples of company-level impact.
- Expertise in experimentation and causal inference, including operating under imperfect conditions, resolving ambiguity, and guiding high-stakes decisions where clean experiments are not always feasible.
- Strong understanding of subscription and marketplace economics, including LTV modeling, cohort dynamics, retention mechanics, pricing trade-offs, and long-term value optimization.
- Strong technical proficiency (e.g., SQL, Python) with the ability to review and elevate the analytical work of others, set coding standards, and design scalable analytical workflows.
- Experience mentoring and technically guiding senior data scientists, contributing to the overall growth and maturity of the data organization.
- Curiosity, problem-solving and critical-thinking skills, as well as the ability to proactively identify and address challenges.
- Ability to influence Directors and VP-level stakeholders, navigate conflicting incentives, and drive clarity in high-stakes strategic discussions.
- Interest in the bigger picture, feeling excited to impact the product roadmap and strategy.

## NICE TO HAVE:

- Background in 2-sided marketplaces or digital businesses (B2C, B2B2C).
- Experience with product analytics tools (e.g. Amplitude, Mixpanel, Heap).
- Experience applying advanced analytical methods (e.g., forecasting, causal modeling, pricing optimization) to drive structural business improvements.
- Familiarity with data visualization tools (e.g., Tableau, Looker, Power BI).
- Master's degree or PhD in a quantitative field.
- Demonstrated experience developing Senior Data Scientists and contributing to raising the analytical bar across teams.

## WHY YOU’LL LOVE IT AT PREPLY

- An open, collaborative, dynamic and diverse culture;
- A generous monthly allowance for lessons on Preply.com http://preply.com, Learning & Development budget and time off for your self-development;
- A competitive financial package with equity, leave allowance and health insurance;
- Not in Barcelona? We offer an attractive relocation package to join us in our Preply Barcelona Hub
- Access to free mental health support platforms;
- Access to Gympass-partnered wellness and gym centers throughout Spain to promote and support well-being and physical health;
- The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!).

## #LI-AG1

## 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 http://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.

## About Preply

## Company Overview
- **One-liner**: Preply is a human-led, AI-enabled online language learning marketplace that connects over 100,000 tutors with millions of learners worldwide for personalized 1-on-1 lessons.
- **Entity Type**: Private (Series D – unicorn, $1.2B valuation as of January 2026)
- **Headquarters**: Brookline, Massachusetts, United States (with global hubs in Barcelona, London, Kyiv, and New York)
- **Founded**: 2012
- **Founders**: Kirill Bigai (CEO) and Dmytro Voloshyn (CTO)

## Core Business
- **Primary industry**: Language learning / EdTech
- **Target customers**: B2C (individual learners) and B2B (corporate language training via Preply Business); primarily B2C but growing enterprise segment.
- **Mission or purpose statement**: "Power people’s progress" – combining the flexibility of online learning with personalized lessons from expert tutors to create life‑changing experiences.

## Products & Services
- **Preply Marketplace**: A platform where learners book 1‑on‑1 live lessons with tutors teaching 90+ languages and 120+ subjects. Tutors manage scheduling, payments, and an integrated video classroom.
- **Preply Business**: Corporate language training solution for companies to upskill employees, offering tailored programs and reporting.
- **AI‑Powered Tools**: New‑generation AI‑enhanced tutoring features (including AI‑generated content and adaptive learning tools) designed to supplement human‑led instruction. The company also provides enterprise OpenAI licenses to employees.

## Market Standing
- **Valuation/Market Cap**: $1.2 billion (post‑money after January 2026 Series D) – becoming a unicorn.
- **Key Metric**: Over $100K total funding? Actually total disclosed funding is ~$150M+ (Series A, B, C) plus the $150M Series D. Annual revenue is not publicly available (private company). Key growth metric: 100,000+ tutors across 180 countries.
- **Notable Investors/Partners**: WestCap (led Series D), Owl Ventures, Horizon Capital, Hoxton Ventures, Full In Partners, Diligent Capital Partners, Point Nine Capital (led Seed round).
- **Growth Signals**: 
  - Unicorn status reached in Jan 2026.
  - B2B segment “Preply Business” growing.
  - Completed first employee tender offer in May 2026 to provide early liquidity.
  - CEO Kirill Bigai named EY Entrepreneur Of The Year® 2026 New England Finalist.
  - 700+ employees globally; 62+ nationalities represented.

## Competitive Advantages
- **Network effects**: Large two‑sided marketplace with 100K+ tutors and millions of learners creates a strong moat in the $115B global language learning market.
- **Human‑led + AI‑enabled**: Differentiates from purely self‑study apps (e.g., Duolingo) by combining live human interaction with AI‑powered personalization.
- **Global reach**: Tutors from 180 countries teaching 90+ languages, enabling learners to find native speakers for almost any language.
- **Trust & quality**: Focus on tutor quality and learner progress, with internal engagement surveys showing 86% of employees proud to work at Preply.

## Strategic Focus
- **AI integration**: Deepen AI capabilities to enhance tutoring (content generation, adaptive learning paths) while keeping human interaction central.
- **B2B expansion**: Grow Preply Business as a key revenue driver for corporate language training.
- **Global hub growth**: Strengthen presence in existing hubs (Barcelona, London, Kyiv, New York) and expand into new markets.
- **Talent & culture**: Continue building a people‑first culture with employee liquidity events and strong engagement scores.

## Why Work Here
- **Culture**: Guided by five “Preply principles” (Ambition, Keep Perfecting, Care to Change the World, etc.). 86% of employees are proud to work at Preply (2025 survey); 84% would recommend it as a great place to work.
- **Work model**: Hybrid working model (flexible remote/in‑office). Main office in Barcelona with hubs in New York, London, and Kyiv.
- **Perks**: Competitive salaries, stock options, L&D days, monthly Preply platform allowance, wellness benefit, health insurance, flexible compensation program, after‑work gatherings, offsite events, enterprise OpenAI licenses.
- **Hiring process**: 4 stages – TA chat, interviews with hiring team (may include tech test), a final task (case study / peer programming / deep technical discussion), and a Culture Champion interview.
- **Global team**: 62+ nationalities and 700+ employees, offering a diverse, collaborative environment.

## Sources
1. [Preply Careers](https://preply.com/en/careers)
2. [Preply About Us](https://preply.com/en/about-us)
3. [Preply Homepage](https://preply.com/)
4. [CB Insights Company Profile](https://www.cbinsights.com/company/preply)
5. [Preply LinkedIn](https://www.linkedin.com/company/preply)

## Other roles at Preply

- [Senior Brand Designer](https://feeny.ai/job/senior-brand-designer-preply-barcelona-44jjsn5v1jgp) — Barcelona, Spain
- [Senior Data Analyst - B2B](https://feeny.ai/job/senior-data-analyst-b2b-preply-barcelona-tn0mzxdyr1e9) — Barcelona, Spain
- [Senior II Full-Stack Engineer (back-end heavy)](https://feeny.ai/job/senior-ii-full-stack-engineer-back-end-heavy-preply-london-0tcnk20meddg) — London, United Kingdom
- [Senior Principal Applied AI Scientist](https://feeny.ai/job/senior-principal-applied-ai-scientist-preply-london-4v2mryfa1vns) — London, United Kingdom
- [Senior Principal Applied AI Scientist](https://feeny.ai/job/senior-principal-applied-ai-scientist-preply-barcelona-3qjbjcsa1310) — Barcelona, Spain
- [Senior Manager, Tutor Brand](https://feeny.ai/job/senior-manager-tutor-brand-preply-barcelona-zg798vmyg1xz) — Barcelona, Spain
- [Senior Manager, Tutor Brand](https://feeny.ai/job/senior-manager-tutor-brand-preply-london-npkkyvk4zhcf) — London, United Kingdom
- [Video Editor](https://feeny.ai/job/video-editor-preply-barcelona-929wjhnf19fv) — Barcelona, Spain
- [SEM Manager](https://feeny.ai/job/sem-manager-preply-barcelona-r966qm31vcr5) — Barcelona, Spain
- [Customer Care Specialist (Colombia - October)](https://feeny.ai/job/customer-care-specialist-colombia-october-preply-egypt-gq8zp3adeaax) — Egypt