8 of 8 Kotlin Jobs in Central London

Contract Android Engineer - Central Government Project (Inside IR35)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - 500 per day
delivering secure, accessible, and user-centric digital services in line with public sector standards. Essential Requirements: Strong commercial experience developing native Android applications using Kotlin (and/or Java) Proven Central Government project experience (essential) Good understanding of Government Digital Service (GDS) principles and accessibility standards Experience working ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
migrating serverless components (e.g., AWS Lambda) into Rails applications. Familiarity with Vue.js to support frontend collaboration. Experience working with mobile applications (React Native/Kotlin/Swift). Experience working in regulated industries or multi-client B2B systems. Contributions to open-source Ruby projects or technical blogging. Benefits Private ...

Mobile Engineer - IOS & Android

Hiring Organisation
Robert Half
Location
City of London, London, United Kingdom
code Skills: Proven experience working as a Mobile Engineer on consumer‐facing applications Strong hands‐on experience with iOS (Swift) and/or Android (Kotlin) Experience integrating with GraphQL‐based APIs Experience building transactional, pricing, or e‐commerce‐driven user journeys Strong understanding of mobile performance optimisation and stability ...

Solutions Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
Experience working in a data-centric organisation Desirable Skills React front-end development React. Native cross-platform mobile application development Android development (Java/Kotlin/Dagger2) Image Processing, ANPR (automated number plate recognition) and OCR library implementations Exposure to process modelling, for example in BPMN IoT relay control ...

Senior Software Engineer

Hiring Organisation
Formula
Location
City of London, London, United Kingdom
Backend Engineer with deep expertise in JVM technologies to help scale and enhance their high-performance systems. There will be a requirement to use Kotlin moving forwards! This is an opportunity to work with modern architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment. Responsibilities … team Stay curious about the wider engineering landscape and bring relevant insights back to the team Key Requirements Strong commercial experience in Kotlin or JVM technologies for backend development Confidence working with Spring Boot or Kotlin or Java to build robust microservices A passion for creating API-first ...

Senior Android Engineer (Contract) | Kotlin, Jetpack Compose, Coroutines, Flow | High-Traffic Consumer App | £400/day | Remote (UK) | Outside IR35

Hiring Organisation
Owen Thomas | B Corp™
Location
City of London, London, United Kingdom
Senior Android Engineer (Contract) | Kotlin, Jetpack Compose, Coroutines, Flow | High-Traffic Consumer App | £400/day | Remote (UK) | Outside IR35 We’re hiring a Senior Android Engineer (contractor) to join a product-focused team building a high-traffic consumer application used at scale. This is a hands-on role … scale Android app used by thousands/millions of users Working closely with product and design to make pragmatic technical decisions Writing clean, maintainable Kotlin code in a modern architecture Contributing to architectural direction (not just implementing tickets) Improving performance, reliability, and overall app quality Reviewing code and raising ...

Java Engineers - Senior / Lead

Hiring Organisation
numi
Location
City of London, London, United Kingdom
Lead & Senior Software Engineer | Fintech Accelerator | London | Scale-up Impact The Opportunity Born from the successful launch of a major digital bank, we are hiring a high-growth venture team with a fresh mission. Building ...

Computer Vision & Machine Learning - Face Recognition Lead

Hiring Organisation
YEO Messaging
Location
City of London, London, United Kingdom
depth analysis, pixelation detection, rPPG), anti-spoofing performance, and injection attack countermeasures. You will work alongside the iOS lead (Swift/CoreML), Android lead (Kotlin/C++/MediaPipe), and Desktop lead (Kotlin Multiplatform) to optimise and deploy models across all platforms. The proprietary YEO facial recognition codebase … Attest (competent). ISO 30107-3 and CEN/TS 18099 understanding. Programming: Python (expert), C++ for inference (strong — Android NDK), Swift and Kotlin awareness (basic — enough to understand integration surface), Git/CI/CD, Docker, MLflow/W&B. Required Skills Expertise in machine learning frameworks, computer ...