Senior xEngineer (Backend Oriented) User Voice

Were looking for an experienced xEngineer with a backend orientation to join the User Voice team.

User Voice is the platform that lets Wix hear its users at scale. It ingests feedback from millions of user interactions and transforms it into actionable insights through a multi-stage AI pipeline - combining natural language understanding semantic representation and retrieval and large-scale unsupervised clustering. The platform is expanding rapidly - onboarding new feedback channels and new types of user signals - and youll be a driving force in shaping the backend architecture behind that growth powering the insights that shape product roadmaps across Wix.

In your day-to-day you will:

• Design and evolve the platforms backend together with the team - a large-scale event-driven microservices system processing feedback in real time and in batch

• Lead the expansion to new feedback channels and new types of insight shaping how each one is brought into the platform reliably and at quality

• Build and improve the AI pipeline stages that turn raw feedback into structured trustworthy insights - from LLM-based information extraction to semantic clustering

• Help establish evaluation as part of how the team ships - automated quality measurement regression evaluation on model and prompt changes and readiness criteria for new feedback channels

• Collaborate with data engineering data science and product to take capabilities from idea to production

• Treat reliability scalability and cost as core features of the platform

Qualifications :

• 5 years of software engineering experience with a strong backend orientation - designing and owning distributed event-driven systems at scale

• Hands-on experience building LLM-based systems in production - extraction pipelines structured outputs prompt and model lifecycle - and dealing with their real-world failure modes: quality cost and latency

• Strong prompt engineering skills - designing iterating and versioning prompts for reliable structured results at scale

• Experience evaluating AI systems - defining quality metrics building evaluation datasets benchmarking and selecting models per task and validating changes before they ship

• Working understanding of applied ML in production - embeddings vector search and clustering algorithms

• Solid grasp of large-scale data processing: pipelines backfills reprocessing and warehouse-scale SQL

Nice to have

• JVM-language experience (Scala Java or Kotlin) and solid Python

• Experience with vector search engines or RAG architectures

• Background in voice-of-customer feedback analytics or similar insight products

Additional Information :

Were the User Voice team. Our mission is to make sure every product decision at Wix can be grounded in what users actually say. We work at the intersection of distributed systems big data and applied AI and were at an inflection point: scaling a proven platform into the feedback backbone of the whole company. Youll work alongside experienced engineers on hard problems with real influence on both the architecture and the product roadmaps your work informs.

Remote Work :

No

Employment Type :

Full-time