Growth Analytics Lead

Fyxer Limited; London; Hybrid; GBP 75,000 - 100,000; Full time

Job summary

A growing technology company in London is seeking an experienced Analyst to drive growth through data analytics and marketing strategies. Ideal candidates will have a strong background in B2B SaaS, SQL proficiency, and a sense of urgency. This role offers a salary range of £75k-100k per year, along with benefits such as private medical insurance and flexible working arrangements.

Benefits

Private Medical

Lunch provided

Fully stocked snacks/drinks

Qualifications

• 4+ years owning acquisition or activation KPIs as an analyst, preferably in B2B SaaS.
• Experience working with or building LTV models from scratch.
• Experience building multi-cell geo experiments or Media Mix Modelling projects.

Responsibilities

• Refine analytics around self-serve acquisition funnel.
• Own weekly reporting and communicate performance flags.
• Help define customer acquisition LTV.

Skills

Fluent in experiment design

CAC/LTV maths

Business storytelling

SQL

Sense of urgency

Tools

Customer.io

Posthog

BigQuery

Metabase

R

Python

Job description

What are we building? An AI Executive Assistant

An AI Email & Meeting Assistant that eliminates the admin burden for professionals in client-facing roles. Think sales, consultants, recruiters, people spend hours on emails, scheduling, and follow-ups. Fyxer Al streamlines and automates these tasks by understanding your inbox, drafting replies in your own voice, and taking crisp meeting notes.

Unlike other startups, we're a pure-play applied AI company and not a SaaS company with AI features hastily bolted on. We use the best techniques (fine-tuned open-source models, tool use, and retrieval-augmented generation), and as a result, users send 53% of the email drafts we generate.

How has it been going?

Since our launch in March 2024, we've grown from $0 to $18 million in revenue, serving tens of thousands of paying users. In February 2025, we raised a $10 million Series A to accelerate our path to $50 million in revenue and less than six months later, we raised our $30m Series B. Only the top 1% of companies have ever gone from A to B this quickly.

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.

We also believe in hiring people who want ownership and autonomy in their work and giving it to them. We see it as farm to table - you nurture the crops, assemble the plates, we just loan you the land.

How will I feed into the Fyxer Growth engine?

We’ve scaled a pretty hefty “big-block” paid engine - rapid scaling on Meta, Google and alongside optimisation of onboarding sequences and lifecycle email took us from $1m to $18m ARR in 9 months. But we’re not 100% sure if all that horsepower is translating to us moving as fast as we could be. We’re absolutely not driving blind - but we’d appreciate the help in getting better visibility.

That’s where hopefully you come in. Your mission would be to help us refine our analytics around our self-serve acquisition funnel: get more business users to connect their work inbox, hit the “aha, draft sent” moment, and return daily - without ever talking to sales.

Types of projects you’d be trying to solve for this side of January:

• Refining our fuel mix. Make sure attribution, incrementality testing and geo/MMM views are as good as possible so we never over-fuel or under-boost a channel.
  
• Defining our acquisition LTV. We’d love it if you’d been at the coalface of this before. We have so much rich data which we could use to ensure our CAC:LTV is as defensible as possible, but also act as a goldmine for acquisition and retention optimisation.
  
• Checking our signals. With $Xm going into paid media channels every month, the data we feed our advertising platforms is critical to solid returns; think Conversions API, automated audience parsing from Customer.io.
  
• Getting under the hood. You’d be the go to person for acquisition and retention performance within our Growth Marketing stack. Owning weekly reporting and being the mouthpiece for week to week flags need to be your bread and butter.

What does our ideal hire look like?

Must have:

• 4+ years owning acquisition or activation KPIs as an analyst, preferably in B2B SaaS.
• Fluent in experiment design, CAC/LTV maths and business storytelling.
• SQL is non-negotiable. Further languages (R, Python) feel very advantageous.
• Experience working with or building LTV models from scratch.
• Experience building multi-cell geo experiments or Media Mix Modelling projects.
• A sense of urgency and intensity in your work.

Ideal:

• Worked at an early-stage tech company (<100 people) as a growth, marketing, product or commercial analyst.
• You've demonstrated through self-driven work any of the following: optimising customer journeys, building virality/seat expansion/referrals, or building revenue operations infrastructure. If you’ve lived in a Growth world, supporting it feels easier. High agency is a must for this role.
• Knowledge of the typical B2B SaaS growth/revops stack-experimentation, CRM, segmentation tools.
• Keen interest in LLMs, workflow automation, and AI agents.

Our Growth stack:

Points for each of the following you’ve interacted with:

• Paid channels (currently): Meta, Google, testing on Linkedin, TikTok.
• Lifecycle / CRM: Customer.io
• Posthog for frontend analytics (events, sessions, feature flags, experiments)
• BigQuery as our data warehouse, with Metabase for data visualization. Production data and Posthog events both stream into it so data is in one place.
• There is an assumption you would use AI alongside much of the above, examples which are commonplace in the team (outside of standard OpenAI, Claude, etc) Dot (analytics), HeyGen (avatars), AdManage & Motion (creative management).

What's on offer:

• This role pays £75k-100k/year DOE & equity
• Private Medical
• Lunch provided and fully stocked snacks/drinks available
• Jons, our Growth Director, is the hiring manager
• We work from our office in Chancery Lane, London, Monday to Thursday. Fridays are work-from-home days.

The application process

• Submit your CV (no need for a cover letter)
• Initial call with someone from the Fyxer AI team to review your experience and motivation (20-30 mins)
• Experience interview with the hiring manager, Jons (30 mins)
• In office interview with Jons, and other members of our Growth, Engineering and Marketing teams.