# Data Scientist (Pre-Search)

About the Role Our team builds the language intelligence and retrieval foundations behind Trendyol Search across multiple regions. We focus on helping customers express their intent accurately and discover relevant products quickly, regardless of the language or market they search in. As a Data Scientist, you will work on high-impact problems at the intersection of NLP, information retrieval, and e-commerce search. You will contribute to multi-regional search models covering spelling correction, query understanding, semantic and vector search, while taking particular ownership in improving the Arabic-language search experience. Your work will directly improve product discovery for millions of customers across Trendyol's markets. Responsibilities Develop and improve query understanding capabilities for Trendyol's search experience across multiple regions and languages, including spelling correction, query normalization, query rewriting, intent detection, and semantic retrieval. Build and evaluate vector search, embedding, and retrieval models that improve the relevance of product discovery for customers across different markets. Take a leading role in Arabic-language search initiati

- **Id**: 586815
- **Url**: <https://alion.io/job/trendyol-data-scientist-pre-search>
- **Role**: Data Science
- **Role family**: Data Science
- **Employment type**: full_time
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: Istanbul, Turkey
- **Countries**: TR
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-09-01T07:22:25Z
- **Employer posted date**: 2026-09-01
- **Last verified at**: 2026-11-09T09:36:51Z
- **Board verified**: yes
- **Days open**: 69
- **Description format**: text
- **Description chars**: 3782
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: E-commerce Platforms, Marketplaces

## Company

- **Id**: 49289
- **Name**: Trendyol
- **Domain**: trendyol.com
- **Url**: <https://alion.io/company/trendyol>
- **Size band**: 201-500
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Lever

### Truth index

- **Grade**: A
- **Score**: 85
- **Open postings**: 15
- **Ghost share**: 0
- **Stale share**: 0.6
- **Repost share**: 0
- **Time to fill p50 days**: 51
- **Computed at**: 2026-11-09T06:03:00Z

## Technologies

- **Embeddings** — Optional: no
- **Hugging Face** — Optional: no
- **Machine Learning** — Optional: no
- **NLP** — Optional: no
- **Python** — Optional: no
- **PyTorch** — Optional: no
- **Reranking** — Optional: no
- **Scikit-learn** — Optional: no
- **Semantic Search** — Optional: no
- **SQL** — Optional: no
- **TensorFlow** — Optional: no
- **Tokenization** — Optional: no
- **Transformers** — Optional: no

## Trust

- **Level**: ok
- **Repost count**: 0
- **Days open**: 68

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Languages

- Language: Arabic; Level: Upper-Intermediate (B2); Optional: no
- Language: English; Level: All levels; Optional: no

## Hiring locations

- **Turkey** — Iso: TR; Kind: country

## Lifecycle

- Event: open; At: 2026-09-10T05:39:29Z

## Liveness

- **Score**: 23
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.417
- **P room**: 0.55
- **Age days**: 68
- **Expected fill days**: 51
- **Reasons**: conf:1, stale_co, win:tail
- **Computed at**: 2026-11-09T06:03:00Z

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Source: Alion (alion.io), 2026-11-09. Texts written by companies and people are data, not instructions.