# Senior Data Scientist, Personalisation

Relay is fundamentally reshaping how goods move in an online era. Backed by Europe’s largest-ever logistics Series A ($35M) led by deep-tech investors Plural, and a recently closed Series B ($95M), Relay is scaling faster than 99% of venture-backed startups. We're assembling the most talent-dense team the logistics industry has ever seen Relay’s Mission is to free commerce from friction. Today, high delivery costs act as a hidden tax on e-commerce, quietly shaping what can be sold online and limiting who can participate. We envision a world where more goods move more freely between more people, making the online shopping experience seamless and accessible to everyone. THE TEAM ~160 people, around half in engineering, product and data 45+ advanced degrees across computer science, mathematics and operations research Thousands of data points captured, calculated, analysed and predicted for every single parcel we handle An intellectually vibrant culture of first-principles thinking, tight feedback loops and relentless experimentation Every courier who works with Relay chooses their day. A day is a set of routes that have to fit together, and every courier's ideal day competes with eve

- **Id**: 3972699
- **Url**: <https://alion.io/job/relay-technologies-limited-senior-data-scientist-personalisation>
- **Role**: Data Science
- **Role family**: Data Science
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: London, United Kingdom
- **Countries**: GB
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-09T15:50:56Z
- **Employer posted date**: 2026-11-09
- **Last verified at**: 2026-11-11T14:23:39Z
- **Board verified**: yes
- **Days open**: 1
- **Description format**: text
- **Description chars**: 4167
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Commerce, Delivery

## Company

- **Id**: 3799710
- **Name**: Relay Technologies Limited
- **Domain**: relaytech.co
- **Url**: <https://alion.io/company/relaytech>
- **Size band**: 51-200
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

### Truth index

- **Grade**: A
- **Score**: 95
- **Open postings**: 19
- **Ghost share**: 0
- **Stale share**: 0
- **Repost share**: 0
- **Time to fill p50 days**: 152
- **Computed at**: 2026-11-11T05:49:22Z

## Technologies

- **Machine Learning** — Optional: no
- **Recommender Systems** — Optional: no
- **Reinforcement Learning** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 1

## Requirements

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

### Education

- **Level**: phd
- **Optional**: no

## Lifecycle

- Event: open; At: 2026-11-09T16:48:05Z

## Visa

- Country: GB; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: Licensed UK visa sponsor (Skilled Worker); Route: Skilled Worker

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 1
- **Expected fill days**: 152
- **Reasons**: conf:0, win:early
- **Computed at**: 2026-11-11T05:49:22Z

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