Front-End Development and Conversion Rate Optimization (CRO) Manager

ElevenLabs; United Kingdom; On-site; GBP 70,000 - 95,000; Full time

Benefits offered by this job

Remote-first

Flexible work hours

Job summary

ElevenLabs is seeking a Conversion Rate Optimization (CRO) Manager to own the experimentation program across the on-site funnel, from marketing site to onboarding. You will craft hypotheses, design tests, and build on-performance experiences with a data-driven approach.

You’ll collaborate with design, engineering, copy, and marketing to ship high-quality variants, analyze results, and drive durable improvements, with remote-first flexibility across NA and EU.

Qualifications

• Proven track record owning a CRO/experimentation program with measurable gains.
• Hands-on A/B and multivariate testing experience using industry tools.
• Strong analytics and statistical rigor to interpret results.
• Experience optimizing signup, onboarding, and landing-page funnels.
• Ability to collaborate with design, engineering, copy, and marketing teams.

Responsibilities

• Own the CRO strategy and experimentation roadmap across funnels.
• Form hypotheses from analytics and user research; prioritize tests by impact.
• Design, build, QA, and launch tests; ensure statistical validity.
• Partner with design, engineering, and copy to ship high-quality variants.
• Analyze results, document learnings, and drive durable funnel improvements.
• Instrument funnel analytics and align on-site with paid and lifecycle traffic.
• Raise experimentation velocity and rigor as the program scales.

Skills

CRO strategy

Data-driven testing

Front-end development

Statistical analysis

Cross-functional collaboration

Effective communication

Tools

Optimizely

VWO

Google Optimize successors

Statsig

GrowthBook

HTML

CSS

JavaScript

GA4

Amplitude

Mixpanel

Job description

About the role

We’re hiring a Conversion Rate Optimization (CRO) Manager to own the experimentation program that turns our paid traffic into signups, activations, and revenue. This role owns strategy and execution across the on‑site funnel—from the marketing site and landing pages to signup and partnering with onboarding—and is expected to find compounding conversion gains through a disciplined, data‑driven testing program.

The ideal candidate is equally comfortable with the strategy and the execution: forming sharp hypotheses, designing statistically sound tests, building and QA’ing variants, reading results without fooling themselves, and engineering skills to build on‑page experiences. You obsess over funnel friction, statistical rigor, and velocity, and you know how to build an experimentation roadmap that ships. This role is highly cross‑functional and will partner closely with design, engineering, copy, performance marketing, lifecycle, and product to drive impact.

What you will do

• Own the CRO strategy and experimentation roadmap across the marketing site, landing pages, and signup/onboarding funnels
• Form hypotheses from analytics, session data, and user research; prioritize tests by expected impact and effort
• Design, build, QA, and launch A/B and multivariate tests; ensure results are statistically sound
• Partner with design, engineering, and copy to spec and ship high‑quality variants quickly
• Analyze results, document learnings, and turn wins into durable improvements across the funnel
• Instrument funnel analytics and tracking so conversion impact is measurable end‑to‑end
• Align on‑site conversion with paid and lifecycle traffic in partnership with performance and lifecycle marketing
• Raise experimentation velocity and rigor as the program scales

Requirements

• Proven track record owning a CRO/experimentation program that delivered measurable conversion and revenue gains
• Hands‑on expertise with A/B testing and CRO tools (Optimizely, VWO, Google Optimize successors, Statsig, GrowthBook, or similar), web analytics (GA4, Amplitude, Mixpanel, or similar), and front‑end development (HTML, CSS, and JavaScript)
• Strong analytical rigor—you understand statistical significance, sample size, and how to avoid false positives without a second opinion
• Experience optimizing signup, onboarding, and landing‑page funnels for both self‑serve and lead‑gen motions
• Comfortable working closely with design, engineering, and copy to ship high‑quality test variants
• Clear communicator who can turn data into decisions and bring the team along
• You thrive in scrappy, high‑ownership environments and are confident building a program from the ground up

Bonus

• Experience with server‑side testing or feature‑flag‑based experimentation
• Experience marketing to technical audiences (e.g., developers, APIs, infrastructure)
• Experience standing up experimentation infrastructure or collaborating with data/BI teams

Growth potential

We believe in hiring the best talent in the world to make an impact in the right role at the right time. At ElevenLabs, strong performance creates opportunities for growth. Here are some of the career paths you can expect after excelling in this role:

• Lead the experimentation function across the full funnel as the team scales
• Expand into broader growth or growth‑product leadership
• Move into full‑funnel growth strategy or a channel‑owner leadership role

Location

This role is remote‑first, so it can be executed from anywhere in NA and EU. If you prefer, you can work from our offices in Dublin, London, New York, and Warsaw.