Senior Platform Software Engineer - Developer Platform

Stack

Responsibilities

• ▹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 that 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 the software development lifecycle, and set up the quality gates and safety nets that keep them trustworthy
• ▹Take part in the team's support and incident rotation; 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

Requirements

• ▹CI/CD depth: strong hands-on experience building and operating CI/CD systems and pipelines at scale, including reliability, performance and cost trade-offs
• ▹Extensive experience (~8 years) designing and building complex backend software systems
• ▹Software engineering skills, including Python; you do not need to be Python-first, but you should be productive in it
• ▹AI expertise: a forefront user of agentic AI who influences the team beyond code generation, reserves judgment for architecture, business logic and security, uses AI as a thought partner and can set up quality gates and safety nets
• ▹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 a data-driven approach
• ▹Strong communication skills
• ▹Minimum C1 English level

Soft skills

What we offer

• ▹Open, collaborative, dynamic and diverse culture
• ▹Generous monthly allowance for lessons on Preply.com, learning and development budget, and time off for self-development
• ▹Competitive financial package with equity, leave allowance and health insurance
• ▹Not in Barcelona? Attractive relocation package to join the Preply Barcelona Hub
• ▹Access to free mental health support platforms
• ▹Access to Gympass-partnered wellness and gym centers throughout Spain
• ▹Opportunity to shape the lives of learners and tutors in 175 countries (and counting) through language learning and teaching

About the company

Preply offers human-led, tech-enabled learning: over 100,000 tutors teach 90+ languages to learners in 180 countries. The company reached unicorn status with a $150M Series D.