Senior Android Developer Contractor (Kotlin / Jetpack Compose / NodeJS) | London (On-Site Preferred) | Rate £550–650pd | Outside IR35 | 2-Month Contract Length (URGENT)
Posted 1 day ago by Owen Thomas | Pending B Corp™
£650 Per day
Outside
Onsite
London Area, United Kingdom
Summary: The role is for a Senior Android Contractor specializing in Kotlin and Jetpack Compose, tasked with building a new B2C mobile app from scratch for a fast-moving AI client. The position requires a hands-on approach, working closely with a technical lead and collaborating with an iOS engineer and backend team. The contractor will take full ownership of the app development, ensuring high performance and clean architecture. This is an urgent opportunity with a contract length of two months, ideally requiring on-site presence in London.
Key Responsibilities:
- Building a complete Android application from scratch with clean architecture and high performance.
- Writing the first line of production code in Kotlin and taking full ownership of the app.
- Working with a hands-on technical lead focused on delivery milestones.
- Collaborating with an iOS engineer and backend team to ensure cross-platform consistency.
- Optionally contributing to backend APIs or glue code in NodeJS, Python, or Rust.
Key Skills:
- Deep experience building Android apps from scratch, ideally for B2C consumer startups or products.
- Strong knowledge of Kotlin, Jetpack Compose, and modern Android patterns (MVVM, DI with Hilt or Koin).
- Autonomous delivery mindset with experience in end-to-end shipping.
- Comfortable working at pace and navigating ambiguity in early-stage products.
- Bonus: Experience working with backend code (NodeJS, Python, Rust).
Salary (Rate): £650 daily
City: London
Country: United Kingdom
Working Arrangements: on-site
IR35 Status: outside IR35
Seniority Level: Senior
Industry: IT
Senior Android Contractor (Kotlin / Jetpack Compose / NodeJS) | London (On-Site Preferred) | Rate £550–650pd | Outside IR35 | 2-Month Contract Length (URGENT)
Opportunity: We’ve just had a call from a fast-moving AI client who urgently needs a Senior Android Contractor to build a brand new B2C mobile app — from scratch . This is a rare opportunity to own an entire Android build end-to-end, working closely with the technical lead as you aim to hit feature parity with an iOS app launching soon . Speed and quality are the name of the game. If you’ve delivered greenfield Android apps at pace and love operating with autonomy, this could be a great fit.
What You’ll Be Doing as a Senior Android Contractor (Kotlin / Jetpack Compose / NodeJS) | London | Rate £550–650pd | Outside IR35 | 2-Month Contract Length:
- Building a complete Android application from scratch — clean architecture, high performance
- Writing the first line of production code in Kotlin and taking full ownership of the app
- Working with a hands-on technical lead, focused on delivery milestones
- Collaborating with an iOS engineer and backend team as needed to ensure cross-platform consistency
- (Optionally) contributing to backend APIs or glue code in NodeJS, Python, or Rust if you’re confident working full stack
Core Skills for the Senior Android Contractor (Kotlin / Jetpack Compose / NodeJS) | London | Rate £550–650pd | Outside IR35 | 2-Month Contract Length:
- Deep experience building Android apps from scratch — ideally for B2C consumer startups or products
- Strong knowledge of Kotlin , Jetpack Compose , and modern Android patterns (MVVM, DI with Hilt or Koin)
- Autonomous delivery mindset — you’ve shipped end-to-end before and know what “good” looks like
- Comfortable working at pace, and navigating ambiguity in early-stage products
- Bonus: Experience working with backend code (NodeJS, Python, Rust)
Details:
- Contract : Outside IR35 (Ltd)
- Rate : £550–650 per day
- Duration : 2 months (with possible extension)
- Location : Central London (ideally 4 days/week on-site, flexible for the right person)
- Start Date : ASAP
If this sounds like a match — please apply here and WE WILL CONTACT YOU if it's a good match. :)