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 Mobile Developer
Projects where the app is you top to bottom: which route gets chosen, which screens get born and who signs the store build. Shakers connects you with teams that arrive with an app to decide, not with a list of technologies.
What gets read about the craft is the course guide or the eternal roadmap of how to become a mobile developer. Neither tells you how an app holds up by project: which route gets chosen, which screens get approved and who signs the store build. 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
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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 ShakersThe decisions a Mobile Developer makes every week
A Mobile Developer builds applications for iOS and Android and decides the route: native with Kotlin or Swift when the app squeezes sensors and performance, or cross-platform with React Native or Flutter when a common codebase serves both stores. The boundary: they hold the whole app and solve the stack decision; the platform specialist goes deeper when the brief narrows. Their daily workshop: Kotlin, Swift, React Native, Flutter, Firebase and publishing on the App Store and Google Play.
You decide which route the app takes (native with Kotlin or Swift, cross-platform with React Native or Flutter), which screens get built on the API that already exists and who signs the store build. You also decide what the app rejects: a screen untested on a real device does not get in. The product belongs to the team; the published app is yours.
KotlinSwiftAndroidiOSReact NativeFlutterJavaSwiftUIJetpack ComposeTypeScriptReactFirebaseAPIs RESTCI/CDGitHub ActionsObjective-C
NativeCross-platformReact NativeFlutterStore publishingDevice testing
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 Mobile Developer delivers on a Shakers project
The brief arrives with the app
Shakers is hiring infrastructure: the project arrives with the team that needs to decide the route and publish, not with a list of technologies.
Screen and build, same sprint
The screen approved on the real API and the signed build entering App Store and Google Play, tested on physical devices.
The route is yours to decide
Native or cross-platform: you pick the brief's stack, from Kotlin to Flutter, and defend it with the product roadmap in hand.
Published apps, not mockups
Having taken an app to the stores and knowing how to tell it: which route, which version and what held real users.
When to call a specialist
Knowing if the brief asks for depth: Android only, iOS only or the API in depth have their own owner. Saying so at kickoff, not midway.
Where your brief ends
You deliver the whole app; you do not hold the backend nor the product web. If the project wants one platform in depth, you say so at kickoff.
Frequently asked questions
Any other questions? Write to us and we will reply.
What does a Mobile Developer do on a real project?
Screens approved on the real API, builds entering the stores and versions that hold users. One week touches Kotlin, another Flutter: the whole app is yours.
Can you make a living developing mobile apps?
Yes: 53 Spanish ads title Mobile Developer and the market splits between android (653), react native (382) and flutter (182). Selling the craft by project, in your language, not bidding in English.
What stack does the Spanish market ask for?
Both routes: Kotlin and Swift in native, React Native and Flutter in cross-platform. Java, SwiftUI, Jetpack Compose, Firebase and CI/CD appear as the base of the brief.
How much does a Mobile Developer earn by project?
The market and the scope set it: which route, how many screens and whether publication comes in. At Shakers you agree the budget per project before accepting.
Do you need to master both routes, native and cross-platform?
Not in depth: the entry filter is certification with published apps. You master one route, from Kotlin to Flutter, and the other gets decided with judgement on each brief.
How do you join Shakers as a certified Mobile Developer?
You create your profile, pass the certification process and enter the collective: only 4 percent make it. Then you choose which apps you take on.
The daily shape of the craft
The screen approved today, the build that enters the store and the review passed every week. Less a bridge between platforms, more an app that holds itself up.
The tools are the craft
53 active tech job ads in Spain publish the literal Mobile Developer title, according to Shakers market analysis (n=31,162, September 2026). Supply is titled in native (Kotlin, Swift) and built cross-platform: React Native and Flutter.
How people get here
Two doors: the Android or iOS specialist widening to the other store, and the web developer entering through React Native or Flutter. Both arrive with half the craft done.
What this role is not
They do not hold your web nor your backend: if the brief stays on one platform, it is the specialist's; if the app is the face of a whole product, the full stack comes in. Your product is the published app.
The roles an app project crosses
Four roles cross your path when the app is yours: the two native specialists, whoever holds the product and whoever tests each release.
Android Developer
When the brief narrows to Google Play and to squeezing the platform in depth: Kotlin, Jetpack Compose and sensors without cross-platform shortcuts.
iOS Developer
Swift, SwiftUI and the App Store review: when the app lives only on Apple's store, the specialist takes the whole brief.
Full Stack Developer
When the app is the face of a product born whole and needs web, API and data: they hold the full width of the system.
QA Engineer
The regression net of an app growing across OS versions and devices: you sign the acceptance criteria of each release together.
Boundaries between these roles are agreed per project: the job title doesn't set them.
Take the next step with Shakers
Want to sign apps on both stores?
Pass Shakers certification and choose which apps your craft ships.
