Experteer Overview You join Preply to scale and safeguard GenAI-powered learning experiences. As a senior engineer on the GenAI Platform team, you design and expand systems that run production GenAI workloads, partnering with data, security, and product teams. You shape platform abstractions, promote self-service capabilities, and drive reliable, low-latency delivery with strong observability and governance. This role combines hands-on coding with architectural influence to impact millions of learners and tutors globally.Compensaciones / Ventajas
- Architect unified gateway with automated routing, quotas, and robust fallback across model vendors
- Improve efficiency and reduce latency via dynamic traffic, caching, and cost allocation controls
- Establish evaluation mechanisms ensuring precision, stability, and safety of model outputs
- Deliver comprehensive observability: tracing, telemetry, cost analytics, monitoring, and alerts across GenAI lifecycles
- Standardize prompt engineering with versioning, automated testing, governance, and CI/CD for production delivery




- Implement platform guardrails with Security/Privacy teams for safe defaults and policies
- Maintain incident response and blameless postmortems with thorough GenAI stack monitoringResponsabilidades
- 5+ years designing and operating backend services or ML infrastructure with production traffic
- Strong Python skills and experience building developer-facing APIs/SDKs
- Hands-on experience with GenAI systems including vector retrieval and external provider APIs
- Knowledge of distributed systems (high availability, concurrency, caching, rate limiting)
- Experience with at least one major public cloud (preferably AWS)
- Experience with distributed tracing, telemetry, SLOs, and incident triage
- Excellent communication and English proficiency (C1), willingness for on-call rotationRequisitos principales
- lesson budget and development stipend
- health insurance
- relocation package to Barcelona
- on-demand mental health support
- Gympass and wellness centers
- equity and competitive compensation

📌 Senior Ml Platform Engineer (Genai Platform) (Barcelona)
🏢 Preply
📍 Barcelona