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
Build your career as a Full Stack Developer
Projects where the product is you top to bottom: which screen gets born, which API holds it up and who signs the deployment. Shakers connects you with teams that need the whole width of the product, not half a brief.
What gets read about the craft is the bootcamp guide or the eternal generalist-versus-specialist debate. Neither tells how a whole product gets held by project: which screen gets approved, which API enters production and who signs the deployment. Here is that.
- Higher-paying projects
- More continuity between projects
- Greater recognition for your experience
+3,000
Tech projects published on Shakers
+90
Tech, Product and Data specialisms are part of Shakers
6 months
Average length of a project with Shakers
4.7/5
Our AI Builders' satisfaction on Trustpilot
AI Builder careers powered by Shakers
See how other AI Builders access better projects, build their reputation and grow their careers.
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.”
Join Shakers
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 ShakersThe decisions a Full Stack Developer makes every week
A Full Stack Developer builds digital product end to end: the interface the user touches, the API that serves it and the database that keeps its state. Their identity is not knowing everything: it is the pair the market posts in its titles, from React with Java to Python with React or .NET with React, executed by one single person. The boundary: they deliver the product born whole; the specialist goes deep on one layer of a live system. Their daily workshop: React, TypeScript, Node.js, PostgreSQL and CI/CD.
You decide which screen gets built on the API that already exists and which endpoint is missing for that screen to live, which pair you work with (React with Java, Python with React) and who reviews the deployment. You also decide what the product rejects: a screen without real data does not get in. The product belongs to the team; the width, to you.
ReactTypeScriptNode.jsJavaPythonSpring BootAngularPostgreSQLMongoDBAPIs RESTNext.jsDockerCI/CDAWSAzureDjangoGraphQLMERN.NET
Whole productInterfaceREST APIDatabaseDeploymentMERN combos
Free to join, no hidden fees
How Shakers works for talent
Create your profile
Tell us who you are, what you can do, the projects you want to work on and what your availability and rate are.
Get your certification
We certify your experience and your use of AI so companies understand and trust what you bring.
Match with projects
We connect you with well-paid projects that fit your expertise and your preferences.
Software Engineering projects that live up to your expectations
Work on real projects, with teams that need your expertise, without wasting time looking for opportunities.
Projects that fit you
Work with companies that need your stack and experience to take their projects to production.
Opportunities that come to you
Our AI matching connects your profile with the projects that fit your preferences.
You build. Shakers handles the rest
Set your own terms based on your seniority. We manage contracts, payments and paperwork.
What a Full Stack Developer delivers on a Shakers project
The brief arrives with the product
Shakers is hiring infrastructure: the project arrives with the team that needs the whole width, not with a list of technologies to memorise.
Screen and server, same sprint
The interface that gets approved, the API that serves it and the deployment that puts it in front of the user. Without waiting for the other half's queue.
End-to-end decisions
You choose the pair, the API design and where the state lives, with the product roadmap in hand. What you decide, you hold up.
Products told, not mocked up
Having taken screen and server to production and knowing how to tell it: which pair, what you deployed and what held real users.
When to ask for a specialist
Knowing whether the brief asks for depth: the database under load or accessibility in depth have their own owner. Saying it at kickoff, not halfway.
Where your brief ends
You deliver the whole product; you do not hold production nor on-call. If the project asks for deep backend or DevOps, you say so at kickoff.
Frequently asked questions
Any other questions? Write to us and we will reply.
What does a Full Stack Developer do on a real project?
Screens that get approved on the real API, endpoints that enter production and deployments that hold users. One week it is interface, another data schema: the whole product is yours.
Is going full stack by project still viable with AI?
Yes: AI speeds up code, but it does not cover the width of the product. The market confirms it: over 1,200 job ads in Spain mention full stack and titles post the pair, not the tool.
What stack does the Spanish market ask for?
The pair of the titles: React with Java, Python with React or .NET with React, with TypeScript, Node.js, PostgreSQL and Docker as the base. MERN and other combos are CV formulas, not roles.
How much do you earn as a Full Stack Developer by project?
A market with over 1,200 active job ads and the scope of each brief set it: which halves get delivered and at what level. At Shakers you agree the budget per project before accepting.
Do you need to be senior to join as a full stack?
The filter is certification, not years: having taken screen and server to production and knowing how to tell it. A profile with real products passes the test just like a senior.
How do you join Shakers as a certified Full Stack Developer?
You create your profile, pass the certification process and enter the collective: only 4 percent make it. Then you choose which whole products you collaborate on.
The daily shape of the craft
The screen that gets approved today, the endpoint that enters production tomorrow and Friday's deployment. Fewer handoffs for others and more product that holds itself whole.
The tools are the craft
Over 1,200 active tech job ads in Spain mention full stack, according to Shakers market analysis (n=31,162, September 2026). Titles post the pair: React with Java, Python with React, .NET with React. MERN appears in 30 job ads: a CV formula, not a role.
How people get here
Two frequent doors: the frontend who goes down to the server and wants their API, and the backend who climbs to the interface and wants their screen. Both arrive with half the craft done.
What this role is not
Not the specialist who goes deep on one layer nor whoever holds production: if the live system strains, backend; if the pipeline rules, DevOps. Your product is the whole one.
The roles a whole product crosses
Five roles cross your path when the whole product is yours: both halves in depth, the framework one and whoever tests and deploys.
Backend Developer
The half that goes deep on the system under load: when the product already lives and the pain is in data or queries, the server half of the brief is theirs.
Frontend Developer
The other half, in depth: accessibility, performance and design system. When the interface of a live system asks for judgement, they narrow it to their layer.
React Developer
React heads the stack of the full stack in Spain: when the product already lives in React, its specialist enters by framework and trims the visual part.
QA Engineer
You test what you write; the regression net of a growing product has its own owner. You both sign the acceptance criteria together.
DevOps Engineer
Your deliverable ends where their pipeline begins: CI/CD, containers and cloud. When the brake is in deployment and not the product, the brief is theirs.
Boundaries between these roles are agreed per project: the job title doesn't set them.
Take the next step with Shakers
Want to sign whole products?
Pass Shakers certification and choose which whole products you collaborate on.
