Álvaro
Data Scientist
“In a climate this uncertain, Shakers gives you a layer of reassurance and confidence. What I like most, without a doubt, is the flexibility and getting to work on top-tier projects.”
Join ShakersShakers for expert talent
Projects where the funnel is the engagement: acquisition that does not scale, activation that drops and retention that leaks. Shakers connects you with teams holding a live product that needs to grow with method.
Growth in Spain lives between training and in-house teams: plenty of courses and schools, few role pages for the by-project engagement. Here the cycle arrives with the metric written and the scope defined.
This is not a training route: it is what gets experimented on a real product, what you must prove and where your log stays.




















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See how other AI Builders access better projects, build their reputation and grow their careers.
Álvaro
Data Scientist
“In a climate this uncertain, Shakers gives you a layer of reassurance and confidence. What I like most, without a doubt, is the flexibility and getting to work on top-tier projects.”
Join Shakers
Amelia
AI Agent Developer
“I have been building AI agents for years. Thanks to Shakers I stopped chasing clients and started genuinely choosing which projects I wanted to work on. I work with some of the best companies in Europe, at my own rate, and I focus on what I am good at and what I love: building.”
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Luz
Backend Developer & Data Engineer
“Shakers adds a lot of value because it connects you with sharper projects, already filtered and better defined. It saves you a big part of the upfront work of understanding the client, quoting and weighing up whether it is worth it, and that means that as a contractor you can go far more directly to the opportunities that genuinely fit you.”
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Rubén
Software Developer
“Life as a contractor has a lot going on and it is not always easy. We like to focus on what we are good at, but you also have to manage clients, invoicing and go looking for work. For me, Shakers has been key because it does that prospecting for me, it gives the client confidence from the very first moment, and it lets us be part of a community with real enthusiasm.”
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Alejandro
AI Developer
“Shakers was key to getting my company off the ground: it gave me the flexibility to keep contracting while I built my next chapter. Without Shakers, I would have had to raise funding or push the project back.”
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Toño
Product Designer
“With Shakers I have landed recurring projects that give me peace of mind and room to grow professionally. It is not just about reaching quality clients: it is feeling that you have a network behind you, one that connects you with real opportunities and helps you move forward as a freelancer.”
Join ShakersA Growth Hacker grows a product with the scientific method: funnel hypotheses, experiments with a period and a sample, and metrics that decide whether to scale or kill. Working by project they run growth on demand: channels, activation and retention, with automation and analytics.
Their boundary: the Growth Engineer is the same craft under the emerging title of employment; the technical profile combines marketing, code and data.
You prioritise the backlog by impact and effort, run the cycle with a sufficient sample and write the decision: scale, pivot or kill. You also decide what does not get experimented on: a hypothesis with no metric goes back with an argument. The method is yours; the result is the proof.
Free to join, no hidden fees
Tell us who you are, what you can do, the projects you want to work on and what your availability and rate are.
We certify your experience and your use of AI so companies understand and trust what you bring.
We connect you with well-paid projects that fit your expertise and your preferences.
Work on real projects, with teams that need your expertise, without wasting time looking for opportunities.
Work with companies that need your stack and experience to take their projects to production.
Our AI matching connects your profile with the projects that fit your preferences.
Set your own terms based on your seniority. We manage contracts, payments and paperwork.
The funnel measured stretch by stretch: acquisition, activation and retention with numbers. The first thing you deliver is where it hurts.
Experiments ordered by impact and effort, with the hypothesis written: the team knows what comes next and why.
The first complete experiment with result and decision: the method installed, not promised.
Hypothesis, metric, result and decision of each cycle: practice gets demonstrated with the notebook, not with adjectives.
SQL, dashboards and automation: the experiment gets implemented, not delegated whole to the development team.
The committee understands your experiment in one slide: what got tested, what was learned and what gets scaled.
Any other questions? Write to us and we will reply.
The funnel split into three stretches with measured leaks, the experiment backlog nobody prioritises and the panic of the flat metric before the committee. Less fireworks, more cycles with a log.
Buyers ask for a growth hacker, the emerging job title says Growth Engineer and marketer is the editorial form. What leads your profile is the log: experiments with hypothesis, result and decision written down.
You are not an ads manager or a community manager with another name: you answer for measured growth. If the engagement is holding organic arrival, that boundary has a row of its own.
A growth cycle does not live alone: whoever decides the product and whoever measures the data cross your path in every engagement.
Whoever decides what gets built: growth experiments on the product the PM prioritises. The natural pair of the build-measure-learn cycle.
The analytics that hold each hypothesis: cohorts, funnels and attribution. When the experiment asks for depth, their row joins.
The variants and onboarding each experiment needs: A/B tests and landing pages with no development queue.
When the leak is in the interface and not in the channel: their row redesigns the flow that you then measure.
The agents that automate nurture and reporting: the copilot of the growth cycle you direct, on foundation models.
Boundaries between these roles get agreed per project: the job title does not set them.
Take the next step with Shakers
Pass Shakers certification and choose which funnel gets your method.