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Senior Software Engineer - Ranking & Recommendation

Lund, Sweden💼 Full-time🗓 2026-09-10 → 2026-09-26

Core

Design and evolve ranking logic and production services for personalized product recommendations in Voyado's Product Discovery Engine, balancing search relevance with discovery goals.

Role type

Senior Software Engineer (Ranking & Recommendation)

Builds

In-house ranking engine, personalized recommendation systems, and A/B testing infrastructure for retail product discovery.

Domain

Retail technology, search, and recommendation systems

Deliverable

production ML models | product features

Required skills

Java, Python, concurrent programming, fundamental algorithms, object-oriented design, cloud platform experience (AWS/Azure/GCP), system architecture

Preferred skills

Machine learning, embeddings, LLMs, low-latency high-throughput services

Technologies

Java, Python, AWS, Microservices, A/B testing frameworks

Responsibilities

Build and evolve ranking capabilities and production services, design and fine-tune personalized ranking algorithms, design systems combining dynamic ranking signals, run and evaluate A/B tests, automate test flows, contribute to architectural decisions and technical roadmap

Seniority

Senior, hands-on IC

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