Senior Recommendation Systems Engineer

This is a fully remote position, open to applicants in Poland.

📋 Description

• Create and develop customized recommendation systems, semantic search, and similar-fragrance identification.

• Formulate approaches for candidate retrieval, ranking, and re-ranking.

• Address cold-start issues and pinpoint valuable user signals.

• Establish data pipelines and machine learning-powered services that enhance recommendations.

• Define evaluation metrics, conduct experiments, and assess recommendation quality.

• Make strategic architectural choices and transition systems from concept to production.

• Provide support in backend and product engineering as necessary.

• Collaborate closely with founders, engineers, and the product team.

• Assist in defining the recommendation architecture and deciding on developmental priorities.

• Integrate AI coding agents like Claude Code and Codex as a fundamental aspect of the development process.

⛳️ Requirements

• Practical experience in developing or enhancing recommendation systems, search ranking, or personalization within a production environment.

• Strong grasp of retrieval, ranking, machine learning models, and experimental methodologies.

• Capability to design and manage systems holistically, rather than focusing solely on individual models.

• Proficient software engineering and backend development abilities.

• Experience in analyzing user behavior data and assessing product impact.

• Product-oriented mindset with the ability to make independent technical decisions.

• Comfort in a small team setting with changing priorities.

• Enthusiasm for AI-driven engineering and utilizing coding agents in daily development tasks.

• Experience in e-commerce, marketplaces, consumer products, or discovery platforms is advantageous.

• Willingness or capability to employ AI coding agents like Claude Code and Codex in everyday development.

🏝️ Benefits

• Equity/share in the long-term success of the company.

• Flexibility for remote work.

• Office space available for local teammates in Warsaw.