Experiments built,
results delivered.

I help SaaS, marketplaces, and e-commerce teams turn growth ideas into measurable outcomes.
Fast, independent, and end-to-end: from hypothesis to shipped experiment.

Let's talk

choose your variant

variant_a

best for: teams who need a clear plan, or want to test working with me before going deeper.

funnel & onboarding audit

  • deep dive into your funnel & onboarding flow

  • diagnosis of drop-offs and friction points

  • prioritised list of fixes with clear impact

experiments build

  • optional quick A/B test to validate results

  • pay per hour, no hidden extras

variant_b

best for: teams that want ongoing experiments and measurable growth, not just advice.

fractional growth engineer

  • continuous A/B tests and CRO experiments

  • onboarding, retention, and funnel optimisation

  • analytics & tracking set up for clean data

  • flexible setup (~1 day/week), giving you growth without a full-time hire



Experiments built,
results delivered.

I design and run growth experiments that make products convert.

about me

export const ellen = {
  name: "Ellen Goettsch",
  role: "Freelance Growth Engineer",
  tagline: "Experiments built, results delivered 🚀",
  sayHello() {
    return `Hi, I’m ${this.name}${this.role}. ${this.tagline}`;
  }
};

// Example:
console.log(ellen.sayHello());

Hi, I’m Ellen — a freelance growth engineer who designs, builds, and analyses A/B experiments end-to-end, driving measurable results through lean growth sprints.


My background spans marketplaces, e-commerce, fintech, and mobility — working with brands like Goboony, SEAT, Volkswagen, and Randstad. What I love most: turning growth ideas into working experiments that ship fast, scale well, and deliver measurable results.


I combine hands-on coding (front-end, tracking, automation) with growth strategy (hypotheses, funnels, onboarding). No waiting on backlogs, no endless meetings — just experiments that run.

Let's connect

clients & teams i worked with

including direct projects and consulting work delivered via Accenture.

Pon Dealer Group logo
Goboony logo
Exact logo
Randstad logo
PME Legend logo
Zilveren Kruis logo

200+

experiments.

15+

platforms.

30%

activation lift.

services & rates

Choose the setup that matches your growth stage

about me

clients & teams
i've worked with

Pon Dealer Groep Logo
Pon Dealer Groep Logo
Goboony logo
Goboony logo
Exact Logo
Exact Logo
Randstad Logo
Randstad Logo
PME Legend Logo
PME Legend Logo
Zilveren Kruis logo
Zilveren Kruis logo

200+

experiments.

15+

platforms.

30%

activation lift.

Hi, I’m Ellen — a freelance growth engineer who designs, builds, and analyses A/B experiments end-to-end, driving measurable results through lean growth sprints.


My background spans marketplaces, e-commerce, fintech, and mobility — working with brands like Goboony, SEAT, Volkswagen, and Shell Recharge. What I love most: turning growth ideas into working experiments that ship fast, scale well, and deliver measurable results.


I combine hands-on coding (front-end, tracking, automation) with growth strategy (hypotheses, funnels, onboarding). No waiting on backlogs, no endless meetings — just experiments that run.

Let's connect

services & rates

start

funnel & onboarding audit

full review of funnel & onboarding flow

clear diagnosis + prioritized fixes

1h walkthrough call with action plan

€950 one-time

For teams who want a quick, clear direction.

test

A/B testing & experiments

hypothesis → build → run → analyse

frontend & tracking included

results delivered in plain language

€110 per hour

For teams who need experiments shipped, not just suggested.

scale

fractional growth partner

ongoing CRO & funnel experiments

analytics & dashboard setup

flexible hours, no overhead

from €3,500 / month

For teams who want continuous growth without hiring full-time.

start

funnel & onboarding audit

full review of funnel & onboarding flow

clear diagnosis + prioritized fixes

1h walkthrough call with action plan

€950 one-time

For teams who want a quick, clear direction.

test

A/B testing & experiments

hypothesis → build → run → analyse

frontend & tracking included

results delivered in plain language

€110 per hour

For teams who need experiments shipped, not just suggested.

scale

fractional growth partner

ongoing CRO & funnel experiments

analytics & dashboard setup

flexible hours, no overhead

from €3,500 / month

For teams who want continuous growth without hiring full-time.

choose your variant

variant_a

best for: teams who need a clear plan, or want to test working with me before going deeper.

funnel & onboarding audit

  • deep dive into your funnel & onboarding flow

  • clear diagnosis of drop-offs

  • prioritized list of fixes


experiments build

  • optional quick test after the audit

  • pay per hour, no hidden extras

variant_b

best for: teams that want ongoing experiments and measurable growth, not just advice.

fractional growth engineer

  • ongoing experiments: A/B tests, CRO, onboarding & retention flows

  • analytics & tracking set up from the start for clean data

  • funnel optimisation with hands-on execution

  • flexible setup (~1 day/week), giving you growth without a full-time hire

Got 30 minutes? Let’s see where your funnel leaks.

Got 30 minutes? Let’s see where your funnel leaks.

© 2025 Ellen Goettsch | Freelance Growth Engineer for A/B Testing & CRO

info@abtesting.studio

info@abtesting.studio

© 2025 Ellen Goettsch | Freelance Growth Engineer for A/B Testing & CRO