Shakers for companies
Work with a senior Full Stack Developer
A certified Full Stack Developer who covers the width of your product with the pair the market posts: React with Java, Python with React, .NET with React. One single person from screen to data schema.
Senior tech talent starting within days, a budget closed by scope and a replacement guarantee: the brief never stays half-done.
- Certified talent in AI and agent skills
- Meet up to 3 AI Builders in 72 h
- Flexible collaboration models




















European clients across different industries
We work with the top 4% of certified talent in our community
Meet 3 certified candidates in under 72 h
Our clients' satisfaction on Trustpilot
The talent mix your company needs
At Shakers you will find AI Engineers, Full Stack Developer and specialists across Tech, Product and Data
Full Stack Developer: what this role brings to your project
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 job ads, from React with Java to Python with React or .NET with React, executed by one single person.
The boundary: the full stack delivers the whole product when the brief is born whole; the specialist goes deep on one layer of a system that already lives.
One provider. One contract. Full traceability
How Shakers works for your company
Post your project
Tell us about the project, its scope, the expertise you need and when you want to get to work.
You get three options
We match your brief against certified talent and introduce the three AI Builders who fit best.
The last word is yours
Meet the three specialists and choose who you collaborate with; we handle the rest.
Why work with Shakers
The advantages of adding this profile with Shakers
Certified from screen to server
We certify identity, experience and technical skills with tests on both halves: interface in React and endpoints in production.
Filtered by your product's pair
React with Java, Python with React or .NET with React: we filter by your real combination, not by the words full stack in the ad.
Custom development, closed scope
Screens, endpoints and data to be delivered get agreed before kickoff: the budget follows scope, not channel.
With a replacement guarantee
If the fit fails, another certified developer enters on the same scope, without reopening the search: the brief never stays half.
Deployed, not on a branch
The deliverable arrives in the pipeline with Docker and CI/CD, tested and documented so your team maintains it at close.
One signature for the whole product
Interface, API and data with one single contact: no more waiting for the other half's specialist to move a screen.
What does custom full stack development include?
Better a full stack or two specialists?
What stack does a Full Stack Developer in Spain master?
How do you choose a Full Stack Developer you can trust?
How much does it cost to work with a Full Stack Developer?
What if the specialist disappears mid-project?
What gets delivered in the first weeks
The first screen on the real API, the endpoint missing in production and the deployment with its pipeline. Product that gets used, not a mockup that gets shown.
A market that asks for the pair by name
Over 1,200 active tech job ads in Spain mention full stack, according to Shakers market analysis (n=31,162, September 2026). And titles no longer sell knowing it all: they post the pair, from React with Java to .NET with React.
Where the Full Stack Developer ends
At the width of the product being born. They do not go deep on one layer of a live system: if the database strains or the interface demands depth, the brief passes to backend or frontend.
Custom development, with an owner
The brief arrives with the symptom: a product being born, a release expiring, a portal without an owner. Scope closes before kickoff and one person answers for it.
Connect with AI specialists to build your next project
Find specialists in Tech, Product, Data to complement your team
Backend Developer
The half that holds the system under load: if the product already lives and the pain is in the database or the API in depth, 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, their specialist narrows it.
React Developer
React heads the stack of the full stack in Spain: if your product already lives in React, its specialist enters by framework and trims the brief.
QA Engineer
The full stack tests what they write; the regression net of a growing product has its own owner. When releasing stops being scary, the brief is theirs.
The AI talent you need Certified by Shakers
We introduce you to three ready_to_build AI Builders in 72 hours.