Hire a Cross-Platform App Developer for Your UK Business
A dedicated cross-platform app developer for UK businesses and startups, building iOS, Android, and web apps from a single shared codebase.
- £0 until you hire
- No lock-in contracts
- Matched within 48 hours
Ready to hire? Complete the form and we’ll match you within 48 hours.
Trusted by 100+ UK Businesses
Especially across property, operations, and support roles.
Hundreds of successful placements
Free replacement guarantee
No long-term contracts
# The Role Explained
What Is a Cross-Platform App Developer Exactly?
A cross-platform app developer is a remote engineer who builds mobile and web applications for iOS, Android, and the web from one shared codebase across the United Kingdom. The dedicated developer works inside your existing tools, follows your sprint workflow, and ships the product features that pull your in-house team away from core engineering work.
In the United Kingdom, cross-platform app developers build apps with frameworks including React Native and Flutter, integrate REST and GraphQL APIs, and publish to the App Store and Google Play from a single codebase. Cross-platform app developers cut delivery time and cost compared with running two separate native teams, which means a cross-platform developer reaches both major mobile platforms and the web from one focused engineering effort rather than three.
Teambuild Consultancy provides experienced, fully supported cross-platform developers to UK businesses, specialising in React Native and Flutter app development. Our team helps startups ship faster, reduce engineering overhead, and maintain high software quality, delivering vetted developers ready to integrate into clients’ workflows from day one.
- Takes less than 2 minutes. No commitment.
Years of proven cross-platform app development delivery
Skilled cross-platform developers ready to hire
UK clients with recurring app projects
Cost until you hire your dedicated developer
What Our Clients Say
Real stories from real clients who found the right talent with Teambuild.
Chris Picton
Smooth and Professional from Start to Finish.
Akthar from Teambuild recruited a remote property manager for us. The new team member came with five years of experience and hit the ground from day one. It was a seamless experience with Teambuild.
Ashish Patel
Brilliant Support!
Nasser from Teambuild helped me recruit Shila, a customer service associate, to join our growing tourism business. She has been absolutely brilliant in these last few months and we are due to recruit a new member in the next quarter.
Deelan
Genuinely Impressive Results with Our New Hire.
We made an addition to our team a few months ago through Teambuild. The new team member has the hit the ground running. Very impressive!!
Amelia
Easy Transition!
Our assistant had 5 years experience within property management in an Australian company. Initially I thought it would take time for her to settle in, but the transition was really quick. Highly recommended!
Ricardo
Stress-Free Hiring!
Just made a hire using Teambuild 30 days ago and the experience was seamless. I had someone up and running in less than 2 weeks. Akthar was absolutely right, this really lightened my workload.
Alex
Quick, Efficient, and Budget-Friendly Recruitment.
Had a great experience hiring a full-time property admin through Teambuild. Not only was the process quick, but the cost was significantly lower than hiring locally. There were a few adjustments early on, but once I clarified the role, they matched me with someone who exceeded expectations.
# Why Teambuild
Benefits of Hiring a Cross-Platform App Developer Through Teambuild Consultancy UK
1. Faster hiring than any local recruitment process
Teambuild Consultancy delivers a shortlist of vetted, framework-trained cross-platform app developers within 48 hours of your initial call. Traditional recruitment for a developer role at a UK startup takes six to twelve weeks. A Teambuild cross-platform developer starts within five to ten working days of selection, with contracts and payroll managed by Teambuild throughout.
2. Top talent without the UK salary overhead
Teambuild cross-platform app developers cost from £900 per month part-time and £1,500 per month full-time on a fixed monthly retainer. A mid-level UK app developer salary runs £45,000 to £65,000 a year before national insurance, pension, and equipment. Teambuild developers reach the same delivery standard at up to 65% less than a comparable UK in-house hire.
3. Cross-platform framework expertise built in
Teambuild cross-platform app developers bring tested experience in React Native, Flutter, and modern JavaScript, plus Node.js back-end work and API integration. Every developer has shipped real apps to the App Store and Google Play, so a Teambuild developer writes production code from day one rather than learning the framework on your project timeline.
4. Globally sourced, quality-assured by Teambuild
Teambuild cross-platform app developers are sourced from a global, location-neutral talent pool and quality-assured through technical testing before any shortlist reaches you. Every developer passes live coding tasks, architecture review, and a communication check, so a Teambuild developer matches your standard for software quality and team fit from the first sprint onward rather than after months of ramp-up.
5. Flexible arrangements with no lock-in contracts
Teambuild cross-platform developer arrangements run month to month with no lock-in contracts and a free replacement guarantee. You scale your engineering capacity up or down as your product roadmap shifts. A Teambuild developer commitment adjusts within your notice period if your business needs change, with no long-term tie-in and no recruitment fees.
6. A dedicated Customer Success Manager on every hire
Teambuild assigns a dedicated Customer Success Manager to every cross-platform developer placement, overseeing onboarding, performance, and day-to-day communication throughout the engagement. Your Customer Success Manager handles escalations, tracks delivery against your product roadmap, and arranges a free replacement if the fit is wrong, so engineering management stays light on your side throughout the entire project.
# Pricing
Simple. Flexible. No Surprises.
Part-Time
STARTS FROM
£900
/month
(£11.25/hour)
- 80 hours per month
- Dedicated team member
- Free replacement
- Customer success manager
- Quality control & super vision
- Your timezone- any hours you want
Up to 65% less than a UK hire
Best Value
Full-Time
STARTS FROM
£1500
/month
(£9.38/hour)
- 160 hours per month
- Dedicated team member
- Free replacement
- Customer success manager
- Quality control & super vision
- Your timezone- any hours you want
Up to 65% less than a UK hire
- Takes less than 2 minutes. No commitment.
# The Process
How to Hire a Cross-Platform App Developer in 3 Steps
Hiring a cross-platform app developer through Teambuild Consultancy takes 3 steps, with your dedicated developer starting within 5 to 10 working days of selection.
Tell Teambuild your project needs
Share your product roadmap, the tools your team uses including Slack, GitHub, and Jira, and the build work you need handled such as React Native development, API integration, and App Store deployment. Teambuild responds within 2 to 3 working hours with a clear placement plan.
Meet your matched cross-platform app developer shortlist candidates
Teambuild shortlists vetted cross-platform app developers based on your specific stack and requirements within 48 hours. Every candidate has been tested on real build tasks including React Native, Flutter, and API integration, so you review qualified engineers, not random applicants.
Onboard and start shipping from day one
Teambuild handles contracts, payroll, and onboarding admin so you focus entirely on shipping great product. Your cross-platform app developer integrates into your repository and sprint workflow within the first week. Your Customer Success Manager stays active throughout the engagement.
- Takes less than 2 minutes. No commitment.
# THE STANDARD YOU CAN EXPECT
This Is the Level of Developer You'll Get
Arif Hanas
Senior Full-stake Developer
5+ Years Experience
Core Skills
Kotlin & Java
REST API Integration
Google Play Publishing
Verified
Abdullah Mahmud
Remote Frontend Developer
4+ Years Experience
Core Skills
Jetpack Compose
Material Design 3
Figma-to-Android Handoff
Verified
Tarnvir Ahamed
Remote Backend Developer
4+ Years Experience
Core Skills
Firebase & Cloud Messaging
API Development & Debugging
MVVM Architecture
Verified
Fahim Hassan
Remote QA & Release Engineer
4+ Years Experience
Core Skills
Automated Testing (Espresso/JUnit)
CI/CD Pipeline Management
Play Store Compliance & Review
Verified
Arif Hanas
Senior Full-stake Developer
5+ Years Experience
Core Skills
Kotlin & Java
REST API Integration
Google Play Publishing
Verified
Abdullah Mahmud
Remote Frontend Developer
4+ Years Experience
Core Skills
Jetpack Compose
Material Design 3
Figma-to-Android Handoff
Verified
Tarnvir Ahamed
Remote Backend Developer
4+ Years Experience
Core Skills
Firebase & Cloud Messaging
API Development & Debugging
MVVM Architecture
Verified
Fahim Hassan
Remote QA & Release Engineer
4+ Years Experience
Core Skills
Automated Testing (Espresso/JUnit)
CI/CD Pipeline Management
Play Store Compliance & Review
Verified
# Explore More
Explore Other App and Mobile Developer Hiring Service Options
Builds custom mobile apps, manages full app development projects, and ships releases for Android and cross-platform builds across the United Kingdom.
Builds native Android apps, integrates APIs, and ships to Google Play for UK businesses and scale-ups.
Builds cross-platform apps in Flutter for iOS, Android, and web from one Dart codebase for product teams.
Hire React Native Developer
Builds React Native apps for iOS and Android, integrates JavaScript back-end services, and ships to both app stores.
Frequently Asked Questions
Clear answers to help you make confident hiring decisions.
What exactly does a cross-platform app developer do?
A cross-platform app developer builds mobile and web applications for iOS, Android, and the web from one shared codebase, using frameworks including React Native and Flutter. The dedicated developer handles front-end interfaces, Node.js back-end services, API integration, App Store and Google Play deployment, quality assurance testing, and ongoing maintenance. A cross-platform developer works remotely inside your existing tools and sprint workflow, acting as a full team member rather than a freelance contractor.
How much does it cost to hire a cross-platform developer?
Teambuild cross-platform app developers cost from £900 per month part-time and from £1,500 per month full-time on a fixed monthly retainer. Every package is a dedicated remote developer, not a shared resource, with Teambuild managing payroll, HR, and contracts. A Teambuild cross-platform developer reaches the same delivery standard at up to 65% less than a comparable UK in-house hire, with no recruitment fees and no upfront cost until you hire.
Can a cross-platform developer build both iOS and Android?
Yes, a cross-platform app developer builds both iOS and Android apps from a single shared codebase using React Native or Flutter. One developer ships to the App Store and Google Play from the same project, which cuts delivery time and cost compared with running two separate native teams. A cross-platform developer keeps both platforms in feature parity from one engineering effort.
What is the difference between a cross-platform and a native app developer?
A cross-platform app developer builds for iOS, Android, and web from one shared codebase, while a native developer writes separate code for each platform in Swift or Kotlin. Cross-platform developers ship to multiple platforms faster and at lower cost, which suits startups and products that need both mobile platforms quickly. Native development suits apps with heavy platform-specific hardware demands.
How do I hire a cross-platform developer for my startup?
You hire a cross-platform app developer through Teambuild Consultancy in 3 steps: share your project needs, review a matched shortlist within 48 hours, and onboard your dedicated developer within 5 to 10 working days. Teambuild handles contracts, payroll, and onboarding admin, and assigns a Customer Success Manager to oversee delivery throughout the engagement.
Do cross-platform developers work UK business hours?
Yes, Teambuild cross-platform app developers work your timezone and any hours you choose, including full UK business hours. Every developer aligns to your sprint schedule, stand-ups, and release cycle, so collaboration runs in real time with your in-house team. A Teambuild developer fits your working pattern rather than forcing you to adjust around offshore hours.
Can I hire a dedicated cross-platform developer remotely?
Yes, you hire a dedicated cross-platform app developer remotely through Teambuild Consultancy, sourced from a global, location-neutral talent pool and quality-assured before selection. Your remote developer works inside your existing tools including GitHub, Slack, and Jira, and integrates into your workflow within the first week. A Teambuild developer operates as a full member of your team.