51 to 73 of 73 Kotlin Jobs

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 ...

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 ...

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 ...

team participating in peer reviews and in testing others code through automated test scripting SKILLS Experience in Java with willingness to learn Kotlin Experienced in at least two or three of the following API development SQL databases HTML JavaScript Lots of experience of working with microservices Strong technical ...

Senior Android Engineer London (Hybrid — 2 days onsite per week) Kotlin • Compose • Coroutines • Modular Architecture • KMP A high-growth technology business in the data and privacy space is looking for a Senior Android Engineer to join the team building their flagship app. This product helps users understand, control … benefit from their data, and sits at the heart of a rapidly expanding consumer and B2B ecosystem. Their Android app is fully Kotlin-based, heavily modularised, and all new features are built with Jetpack Compose. Coroutines and Flows are used extensively throughout, testing is taken seriously (unit ...

with our product and design teams to build and ship high-quality features for our Android application. Code Quality: Write clean, maintainable code in Kotlin (and some legacy Java) while following modern architectural patterns (MVVM/MVI). UI/UX Implementation: Turn Figma designs into pixel-perfect layouts … Bring Experience: 1+ years of professional experience in Android development (internships count if they were high-impact!). Language Proficiency: Strong foundations in Kotlin and a solid understanding of Java. Android SDK: Familiarity with Activities, Fragments, Services, and Lifecycle components. Networking: Experience working with RESTful APIs using Retrofit ...

major new features, as well as improving and maintaining existing functionality for The Guardian’s Android apps Our current codebase is 90%+ in Kotlin, but you may be required to work with Java too. You won't be coding in isolation - our culture is strongly collaborative, whether pair … applications. You aspire to be an expert in Android development and have a strong interest in growing your skills You’re confident coding in Kotlin building in Android studio. You have some experience with Java or are willing to learn. You are curious, passionate about technology and finding creative ...

Backend Specialist (Java & Kotlin) Location: London (Hybrid: 2-3 days per week) Type: Full-time/Permanent Experience: 5-7 years We are seeking a high-caliber Backend Specialist with a strong foundation in Java and Kotlin to join our development team in London. In this role … maintainable backend solutions while collaborating with cross-functional teams to deliver high-performance features. Key Responsibilities Develop & Maintain: Build robust applications using Java and Kotlin within a Spring Boot environment. Architect: Design and implement scalable Microservices architectures. Collaborate: Work with Project Leads, BAs, and DevOps to translate requirements into ...

Mobile Android (Kotlin) Engineer - London, Hybrid **NO SPONSORSHIP - Must have the right to work full time in the UK** Daily Rate: £300 PAYE/£350 via Umbrella per day Location: London- Hybrid 3 days/week Overview A major banking company are looking for a Mobile Android Engineer … development methodologies popular in Android and be able to dive deep and rapidly iterate on ideas with your team despite some ambiguity. Skills Strong Kotlin proficiency Experience working on modern app architecture (MVVM, Jetpack Compose, distributed app structures, migrated codebases, modularised apps) Moderate to intermediate AI tooling adoption (Experience ...

Contract Android Engineer (Kotlin) – Outside IR35 Location: Leeds/Hybrid (1 day per week onsite) Day Rate: £400 to £450 per day Contract Length: Initial 3-month contract (very strong likelihood of long-term extension) **Must Be Eligible for Security Clearance in the UK** The Opportunity We’re partnering … with a growing technology consultancy supporting a key client on a mobile product initiative. They’re looking for an experienced Android Engineer (Kotlin) to join the team on an initial 2-month engagement, with a very strong likelihood of extension into a longer-term piece of work. This ...

confidence across web and mobile. Responsibilities Execute & Manage Testing : Own the manual testing lifecycle for web (Vue.js/Rails) and mobile (Native Swift/Kotlin) applications. Shift Left: Participate in design and requirements sessions, clarifying how A/Cs are tested before a single line of code is written. … backend and the client devices. The Tech Environment: Management: TestRail, Jira. Web: Vue.js (Frontend), Ruby on Rails (Backend). Mobile: Native Swift (iOS) & Native Kotlin (Android) as well as React Native. Note: While our stack includes RSpec and Vuewrapper, this is a functional QA role. You are not expected ...

focus on low-latent messaging solutions and highly available event-driven services. Must have experience: 5+ years experience in JVM, we use both Kotlin and Java Multi-threading, concurrency and Low-latency experience Exposure to Kotlin as well as Strings, Memory Management and associated problems a plus Automated … Kafka a huge plus To excel in this role, you will need a minimum of 7 years' experience in JVM, with proficiency in both Kotlin and Java. Experience in multi-threading, concurrency, and low-latency is essential, as well as exposure to Kotlin, Strings, Memory Management, and associated ...

London (2x per week) We are very excited to be continuing our partnership on this exclusive position to join the company as a Kotlin Software Engineer from a JVM background. You will be joining a highly innovative scale-up leading at the forefront of the GreenTech industry, as they … clean energy for the charging of electric vehicles. In this position, they are looking for experience in: 3+ years commercial experience JVM development - Java, Kotlin or Scala (Bonus) if you have already worked with Kotlin Microservices architecture Public cloud technologies e.g. AWS Have worked in modern, product-focused ...

Mobile Developer – Fully Remote | Up to £105k | React Native, Swift, Kotlin Here at Venchr, we are seeking a Mobile Developer with strong expertise in React Native to build high-quality, cross-platform applications that deliver a seamless experience on both iOS and Android. You’ll be contributing to innovative … mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 100% remote flexibility — work from anywhere Up to £105k salary ...

Mobile Developer – Fully Remote | Up to £105k | React Native, Swift, Kotlin Here at Venchr, we are seeking a Mobile Developer with strong expertise in React Native to build high-quality, cross-platform applications that deliver a seamless experience on both iOS and Android. You’ll be contributing to innovative … mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 100% remote flexibility — work from anywhere Up to £105k salary ...

Mobile Developer – Fully Remote | Up to £105k | React Native, Swift, Kotlin Here at Venchr, we are seeking a Mobile Developer with strong expertise in React Native to build high-quality, cross-platform applications that deliver a seamless experience on both iOS and Android. You’ll be contributing to innovative … mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 100% remote flexibility — work from anywhere Up to £105k salary ...

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 ...

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 ...

Card Company Location: AMEX London Victoria 3 days/week, 2 days/week WFH Years of Exp: 3-9 years Skills: Full Stack, Kotlin (essential), TypeScript (essential), CI/CD, Java £25-£40/hr depending on experience and assessment level, Inside IR35 Visa sponsorship is not available. … Strong fundamentals of Computer Science to scale developments. Excellent communication & interpersonal skills. Creative and a good team worker. Kotlin (or strong Java) & TypeScript mainly – full stack ideally. Fundamentals are very important. Data structures, algorithms & system designs. Online test will be given in the first instance. Successful candidates will ...

Decide when to use hybrid vs fully native approaches Lead architecture, spikes, and proof-of-concepts Define integration patterns between React Native, Swift, and Kotlin Set standards for packaging, versioning, and native module bridging Partner with iOS/Android architects on cross-platform design decisions Drive experimentation with WebView … What You Bring Strong production experience with React Native at scale Excellent JavaScript/TypeScript and modern React knowledge Working knowledge of Swift and Kotlin Experience integrating React Native into native mobile apps Strong understanding of mobile performance and platform constraints Experience in complex, multi-team engineering environments Bonus ...

they have on offer.. What you’ll be doing • Building high-quality, user-facing features using React and TypeScript • Contributing to backend services in Kotlin/Java • Working closely with Product and Design to shape and deliver impactful features • Owning problems end-to-end, from discovery through to production … looking for • Experience as a key engineer in a startup or scale-up environment • Strong React and TypeScript expertise, with solid backend experience (Kotlin or Java) • A genuine product mindset — you think in terms of user outcomes, not just delivery • Proven ability to raise engineering standards and influence peers ...

Description Android Software Engineer (Kotlin) Cheltenham/Hybrid/Remote My client is looking for an experienced Android Software Engineer with strong Kotlin expertise to join a growing UK technology business delivering secure mobile solutions into the national defence sector. This is an opportunity to work across live ...

Backend Specialist (Java & Kotlin) Location: London (Hybrid: 2-3 days per week) Type: Full-time/Permanent Experience: 5-7 years We are seeking a high-caliber Backend Specialist with a strong foundation in Java and Kotlin to join our development team in London click apply for full ...