Senior/Lead Data Scientist, Fyxer.AI

£100-140k

Compensation: >£140 base plus equity

SQL

Python

BigQuery

dbt

Senior and Expert level

London

Monday - Thursday in office

4 days a week in office (Chancery Lane, London)

AI executive assistant

Be an early applicant

AI executive assistant

21-100 employees

B2CB2BArtificial IntelligenceInternal toolsProductivity

Be an early applicant

£100-140k

Compensation: >£140 base plus equity

SQL

Python

BigQuery

dbt

Senior and Expert level

London

Monday - Thursday in office

4 days a week in office (Chancery Lane, London)

21-100 employees

B2CB2BArtificial IntelligenceInternal toolsProductivity

Company mission

Get back one hour every day. Begin your day with emails neatly organized, replies crafted to match your tone and crisp notes from every meeting.

Job

Company

Role

Who you are

You use first principles to really understand the problem and build solutions that have real business impact
You get frustrated just dealing with tickets and want to partner with businesses
Experience working at a fast paced early-stage tech company (<100 people)
Expert in SQL and comfortable with Python/R; experience building and deploying machine-learning models
Strong ability to transform messy data into production-ready datasets and communicate technical findings to non-technical stakeholders
You want to build and have impact from the ground up
You want to have unreasonable ownership of your own world
You work hard, with intensity everyday & move incredibly quickly
You always challenge the systems you’re in to be better

What the job involves

We hire small numbers of exceptional people who want ownership and autonomy. You’ll be expected to work with urgency and intensity, but you’ll also gain responsibility quickly and see your work have a direct impact
In short, you’ll own Fyxer AI’s data science capabilities — you’ll set the roadmap for high-impact business areas like marketing and retention, implement scalable solutions, and ensure stakeholders use data to make confident commercial decisions
Build and refine predictive models on multi‑channel customer and usage data to drive product and marketing decisions
Collaborate with engineering, marketing, sales and product teams to define KPIs, experiment with new algorithms and surface actionable insights that drive impact
Maintain data infrastructure (BigQuery, dbt, Fivetran) and ensure data quality for reporting and self‑service analytics
Develop a culture of data-driven decision making and proactively suggest improvements to tools, processes and architecture

Salary benchmarks

Our take

Built with the intention of turning the burden of email drafting into a business's competitive edge, Fyxer AI delivers AI executive assistants that can organise inboxes, draft emails in the tone of voice of each user, and write "better-than-human" meeting notes. Plugging directly into Gmail, Outlook, Slack, Teams, Google Meet and Zoom, its service is simple to use without the need to grasp additional software.

Fyxer is especially useful for industries that spend large amounts of time composing emails. Think real estate, consultants and recruiters, all saving time through the pure-play AI software of Fyxer and its open-source AI models and retrieval augmented generation. The company claims that its customers send 53% of the email drafts generated on its platform.

As more and more professionals turn to AI to save them time in their everyday tasks, Fyxer AI's secure and streamlined service is sure to gain more attention. Things certainly look to be going well, as in 2024, the company raised $500K in just three weeks from existing customers and their networks. It also rocketed from $1m ARR to $22m in just 10 months in 2025 - a sure-fire sign of the value users see in its offering

Steph

Company Specialist at Welcome to the Jungle

Company

Funding (last 2 of 3 rounds)

Sep 2025

$30m

SERIES B

Mar 2025

$10m

SERIES A

Total funding: $40.5m

Company values

What do we value? We're very intentional about adding new people. We believe a small team of exceptional people working hard at a problem they care about will always outperform a larger, more unfocused team. That means you'll need to bring an intensity to this role that might not be expected at other companies but it also means you'll be fast-tracked into roles with greater responsibilities far earlier.

Company HQ

Midtown Manhattan, New York

Leadership

Archie Hollingsworth

(Co-Founder & CRO)

Founding Member of Pavilion. Co-founded FYXER, an Executive Assistant Agency, in 2016, and is now using that knowledge at Fyxer AI.

Matthew Ffrench

(Co-Founder & CTO)

Previoulsy co-founded and was CTO at Mercado. Was also Product Manager at Zopa.

Richard Hollingsworth

(Co-Founder & CEO)

Founding Member of AI Circle. Co-founded FYXER with Archie, and was a Quant Trader at Bull Moose Derivatives.

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