Mobile developer Work, Jobs in Se9 6lg (with Salaries)

Junior Mobile App Developer (6-Month Contract)
H2 Cognitive Designs Ltd —London
- Up to £45,000 a year
- Full-time
- Hybrid work
- APIs
Quick apply
1d
Front-End Developer (React and React Native)
Foresters Financial —Bromley
- Full-time
- Hybrid work
- Analysis skills
- JavaScript
- APIs
- Employee assistance programme
Junior Front End Developer
Byte9 —London
- JavaScript
- APIs
- HTML
Senior WooCommerce Developer / E-commerce UX & UI Lead
Photonic Universe —Orpington
- Up to £75,000 a year
- Part-time
- ERP systems
- Business development
- JavaScript
Quick apply
12d
IOS Developer
Guardian News & Media —London
- £62,000 a year
- Full-time
- Hybrid work
- Annual leave
- Gym membership
8d
iOS developer
Novamill —London
- APIs
Interactive developer
Guardian News & Media —London
- From £47,731 a year
- Full-time
- Hybrid work
- AWS
- JavaScript
- APIs
- Annual leave
- Gym membership
3d
Front-end Developer Role
Syrox Emedia —Kingston upon Thames
- JavaScript
- Communication skills
- HTML
Mobile Engineer
Teya —London
- Full-time
- Project management
- APIs
- Annual leave
- Flexible schedule
iOS DEVELOPER
Santriya Technologies —London
SENIOR 3D UNITY DEVELOPER
Micazook —London
- English
- C++
- Maths
Innovation - Mobile Engineer
iProov —London
- £50,000 - £60,000 a year
- Full-time
- Hybrid work
- Computer Science
- Bachelor's degree
- Communication skills
- Annual leave
- Employee discount
Quick apply
Iphone Developer
Akshara Consultancy —London
- Computer Science
- Engineering
- Master's degree
Android Developer
Akshara Consultancy —London
- Java
- APIs
Sr. Front-end Engineer
Galytix —London
- English
- JavaScript
- APIs
Drupal Developer
Institute of The Motor Industry —Hertford
- £43,000 - £48,000 a year
- Full-time
- Hybrid work
- Azure
- JavaScript
- APIs
- Paid training
- Annual leave
Quick apply
7d
Full-stack developer
Pugpig —London
- Full-time
- Hybrid work
- Project management
- Presentation skills
- Bachelor's degree
Quick apply
Mobile Engineer - Flutter | London
TransPerfect —London
- Full-time
- Hybrid work
- Bachelor's degree
- Agile
- Communication skills
Quick apply
Senior Mobile Engineer, iOS or Android (Relocation to Melbourne)
Airwallex —London
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
Full Stack Developer
Capgemini Sogeti —London
- Hybrid work
- AWS
- JavaScript
- Mentoring

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Junior Mobile App Developer (6-Month Contract)

H2 Cognitive Designs Ltd
London

Quick apply

Job details

Full-time
Up to £45,000 a year
1 day ago

Qualifications

Kotlin
iOS
Git
Android
REST
APIs
Swift
Debugging

Full job description

Important Information

To apply, submit a CV and a short cover letter explaining your interest and relevant experience. Informal enquiries to [email protected]. No agency applications.

This role is not eligible for UK visa sponsorship. Applicants must have the right to work in the UK independently and for the duration of their employment.

Contract Length

Six months, with the potential for an extension

Pay

Equivalent of £45,000 per annum

About Us

H2 Cognitive Designs (H2CD) is a health technology company working at the intersection of cognitive science, clinical research, and large-scale digital assessment. We build platforms used to measure cognitive performance across clinical trials, occupational health programmes, and large institutional deployments in the UK and internationally.

Our clients include demanding and security-conscious organisations across healthcare, national institutions, and sectors where the performance and reliability of what we build genuinely matter. Our infrastructure is cloud-native, and our engineering team is distributed, collaborative, highly skilled and highly specialised. We have a rapidly growing portfolio of significant projects, and this role sits at the heart of how we deliver them.

The Role

This is a core mobile application development position at the junior level. You will work day-to-day alongside senior developers, product managers and designers — building cross-platform features with Kotlin Multiplatform and Compose Multiplatform, contributing shared business logic and clean, reusable UI components, and helping integrate APIs, local data, authentication and offline-first functionality. You will assist in debugging across Android and iOS builds, write unit tests for shared logic, and participate in code reviews and testing.

You will grow into cross-platform mobile development as an area of practice. That means learning through structured guidance, asking questions early and often, investigating issues thoroughly and explaining your findings clearly — with the expectation that you develop into a full cross-platform mobile developer within the team.

Responsibilities

Assist in developing cross-platform features using Kotlin Multiplatform (KMP) and Compose Multiplatform (CMP).

Build clean, reusable UI components using Jetpack Compose / Compose Multiplatform.

Work on shared business logic in commonMain, while supporting platform-specific implementations in androidMain and iosMain.

Help integrate APIs, local databases, authentication, notifications, and offline-first functionality.

Collaborate with senior developers to design scalable app architecture using patterns such as MVVM, MVI, or clean architecture.

Write maintainable Kotlin code with proper separation between UI, state management, repositories, and platform services.

Support Android-specific features such as permissions, background tasks, notifications, and deep links.

Support iOS integration through Kotlin/Native, Swift interop, and shared framework usage.

Assist in debugging and fixing issues across Android and iOS builds.

Participate in code reviews, testing, and improving code quality.

Write unit tests for shared logic where appropriate.

Keep documentation updated for shared modules, setup steps, and feature behaviour.

Work closely with product, design, QA, and backend teams to deliver reliable mobile features.

Learn and apply modern mobile development practices, including dependency injection, async flows, local persistence, and CI/CD workflows.

Nice-to-Have's

Basic experience with Kotlin, Jetpack Compose, or Android development.

Familiarity with KMP/CMP project structure.

Understanding of REST APIs, JSON, coroutines, and flows.

Basic knowledge of local databases such as Room, SQLDelight, or similar.

Interest in cross-platform mobile development and willingness to learn iOS build/debugging workflows.

Experience with Git, pull requests, and collaborative development.

Expected Mindset

Willing to learn and ask questions.

Comfortable working step by step with guidance.

Interested in writing clean, simple, testable code.

Able to investigate bugs and explain findings clearly.

Open to feedback during code reviews.

Keen to grow into a full cross-platform mobile developer role.

Pay: Up to £45,000.00 per year

Work Location: Hybrid remote in London EC2A

Quick apply

Refine Your Search

mobile developer jobs in se9 6lg

Junior Mobile App Developer (6-Month Contract)

Front-End Developer (React and React Native)

Junior Front End Developer

Senior WooCommerce Developer / E-commerce UX & UI Lead

IOS Developer

iOS developer

Interactive developer

Front-end Developer Role

Mobile Engineer

iOS DEVELOPER

SENIOR 3D UNITY DEVELOPER

Innovation - Mobile Engineer

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Sr. Front-end Engineer

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Full-stack developer

Mobile Engineer - Flutter | London

Senior Mobile Engineer, iOS or Android (Relocation to Melbourne)

Full Stack Developer

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