Overview
Senior II Backend Engineer at Preply. We power people's progress by creating life-changing learning experiences and building systems that connect learners with tutors worldwide.
Meet the team: The MarTech team builds the infrastructure powering Preply’s growth engine, focusing on scaling performance marketing through smart automation, precise tracking, and efficient campaign tooling. We design engineering systems that drive measurable results, from optimizing SEM and paid marketing workflows to managing SEO infrastructure, attribution, and multi-channel communications. You’ll work at the intersection of marketing, data, and engineering, and see the direct business impact of the systems you own.
What You’ll Be Doing
* Own and drive technical vision across two Martech squads focused on ad delivery, SEO systems, automation, and attribution.
* Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
* Scope and lead cross-functional initiatives involving marketing, data, product, and other engineering teams.
* Design and implement scalable backend systems, data pipelines, and integrations with third-party platforms (e.G., Meta, TikTok, Google Ads).
* Mentor and coach junior and middle engineers across squads.
* Improve performance, tracking, monitoring, and reliability of our systems with an eye on long-term scalability.
* Collaborate closely with PMs, EMs, designers, and analysts to make data-informed, user-centered decisions.
* Champion engineering best practices: test automation, documentation, observability, and quality-first culture.
What You Need to Succeed
* Exposure to architectural patterns of a large, high-scale web application (e.G., well-designed APIs, high-volume data pipelines, efficient algorithms).
* Proven experience leading complex, ambiguous, or greenfield projects end-to-end.
* Strong communication and cross-functional collaboration skills (English level B2+).
* Willingness to be on-call for your squad (1 week every 5 weeks).
Nice to Have
* Side projects or product ownership experience, especially in marketing or growth contexts.
* Experience designing systems for marketing attribution, experimentation platforms, or recommendation engines.
* Familiarity with cloud platforms (AWS/GCP) and modern DevOps practices.
* Familiarity and willingness to support small JS/TS tasks when needed.
Why Engineers Choose Preply
Impact that scales: What you build helps unlock progress for learners in 175+ countries. Every feature you ship supports real people, reaching real goals.
Ownership that matters: Engineers lead bold projects, make key tech decisions, and see their work drive business results.
Learning built in: We work cross-functionally with data, product, design, marketing, so there’s always a new challenge and a new skill to pick up.
Modern tech, real standards: We prioritize scalable systems and smart engineering practices that last.
Benefits and Perks
* An open, collaborative, dynamic, and diverse culture.
* A generous monthly allowance for lessons on Preply.Com, Learning & Development budget, and time off for self-development.
* A competitive financial package with equity, leave allowance, and health insurance.
* Relocation package to join us in our Preply Barcelona Hub (if not in Barcelona).
* Access to free mental health support platforms.
* Gympass-partnered wellness and gym centers throughout Spain.
* The opportunity to shape the lives of learners and tutors in 175 countries.
Our Principles
* Care to change the world
* We do it for learners
* Keep perfecting
* Now is the time
* Disciplined execution
* Dive deep
* Growth mindset
* Raise the bar
* Challenge, disagree and commit
* One Preply
Diversity, Equity, and Inclusion
Preply is committed to creating a diverse and inclusive environment where people from all backgrounds can thrive. 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.
Seniority level
* Mid-Senior level
Employment type
* Full-time
Job function
* Information Technology and Engineering
Industries
* Education Administration Programs
* E-Learning Providers
* IT Services and IT Consulting
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