6 months ago
Barcelona, SpainSenior
Responsibilities
- Design, build, and evolve scalable backend systems using Python and Django.
- Develop and improve frontend experiences using React and TypeScript.
- Create new services, make architectural decisions, and own critical integrations.
- Lead complex initiatives from discovery through deployment and manage solutions throughout their lifecycle.
- Drive engineering excellence through mentorship, architectural reviews, code reviews, and best-practice adoption.
- Partner with Product, Data, and UX teams to identify opportunities, run experiments, and maximize customer value.
- Shape technical direction for complex systems and improve scalability, reliability, maintainability, and developer productivity.
- Navigate ambiguity, evaluate trade-offs, and align technical investments with business and customer outcomes.
- Influence technical direction beyond the immediate team and collaborate with engineers, managers, and stakeholders.
- Use agentic AI in engineering workflows while applying judgment around architecture, business logic, security, quality gates, and safety nets.
- Support observability, reliability, monitoring, and operational best practices, including participation in on-call rotation.
Requirements
- Deep backend engineering expertise with the ability to contribute across the full stack in a role that is approximately 85% backend and 15% frontend.
- Experience designing and evolving large-scale web applications with well-designed APIs, distributed systems, high-volume data flows, and scalable architecture.
- Ability to make sound technical trade-offs balancing short-term delivery with long-term sustainability.
- Demonstrated technical leadership, including influencing technical decisions, driving engineering practices, and contributing to architectural direction.
- Strong product mindset and ability to translate ambiguous business challenges into scalable technical solutions using experimentation, data, and customer insights.
- Ability to independently solve complex technical and product challenges while engaging others effectively.
- Track record of owning initiatives from concept through delivery and measurable outcomes.
- Strong collaboration, stakeholder management, and communication skills across engineering, product, design, and data functions.
- English proficiency at B2 level or higher.
- Experience mentoring engineers, contributing to code and design reviews, and raising engineering quality through knowledge sharing.
- Understanding of observability, reliability, monitoring, and operational practices.
- Hands-on experience using agentic AI and influencing engineering workflows beyond code generation.
- Python experience is not required; experience with Java/Spring, Node.js, Ruby on Rails, Scala/Play, PHP, or Go is also relevant.
Benefits
- Monthly allowance for Preply language lessons.
- Learning and Development budget and time off for self-development.
- Competitive financial package including equity, leave allowance, and health insurance.
- Relocation package for joining the Preply Barcelona Hub from outside Barcelona.
- Access to free mental health support platforms.
- Access to Gympass-partnered wellness and gym centers throughout Spain.
- Opportunity to support learners and tutors across 175 countries.
Categories
About Preply
Preply builds an online marketplace that connects learners with human tutors for live language lessons, supported by AI tools. Consumers book 1:1 sessions and ongoing courses, while organizations use Preply Business for corporate language training; revenue comes from commissions and subscriptions. Founded in 2012 and privately held, Preply operates globally with 100,000+ tutors teaching 90+ languages.