676 to 700 of 1,142 Kotlin Jobs

Staff Software Engineer/Developer (Kotlin AWS React) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social care … Software Engineer you will collaborate with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end. You'll be hands-on with architecture, design and coding, including complex business logic, authentication and … and liaise on bespoke product development. About you: You have expertise with software engineering best practices, experience across the full development lifecycle and tech stack You have experience with Kotlin, Java, SpringBoot and AWS You have a good understanding of APIs and permission based systems You have a good understanding of software architecture and have experience of building systems More ❯

Android Developer Remote (must be UK based) £38k Fully remote Kotlin/Jetpack Compose Personal Development & Progression Plan Flexible Hours Evolving Digital Agency Ada Meher is currently working with a scaling digital agency as they look to recruit a Junior-Mid Level Android Developer to work on the development of a number of their exciting client projects. The … successful applicant can expect to work on both greenfield development and BAU development project using Android and surrounding tech such as Kotlin & Jetpack Compose and MVI. This role would suit someone who has a solid grasp on the foundations of Android Development and is keen to take advantage of the resources and expertise made available to them internally to … their other life commitments. To Be Considered 1-2 years of experience in Android Mobile App Development Experience working in a fast-paced environment Strong communication skills Experience with Kotlin, Jetpack Compose and MVI Experience with Unit Testing/TDD would be beneficial As mentioned, due to their commitment to continuous improvement, each employee in this business has a More ❯

right Job Reference: 89ef92d4849a Job Views: 9 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description: Primary Skills: Java (Expert), RestAPI (Expert), SQL/NoSQL (Advanced), Spring Boot (Advanced), Kotlin (Intermediate), Multithreaded Programming (Expert) Contract Type: C2C Duration: 12+ months (possibility of extension) Location: London, UK (100% #LI-Remote) Pay Range: As per market #LP Job Summary: We are … databases, optimize SQL queries, and develop secure, scalable APIs for high-volume transactions. Use Java as the primary language to ensure robust, maintainable code. Contribute to frontend features using Kotlin, enhancing UI and functionality. Write tests to ensure quality and reliability. Requirements: Experience in backend development, especially building APIs for mobile apps. Expertise in Multithreaded Programming. Proficiency in Java … OOP principles, and service/server-side development. Strong SQL and database skills, with experience in schema design and optimization. Experience with Android frontend development using Kotlin is preferred. Familiarity with cloud services like AWS or Google Cloud is a plus. Preferred: Experience in health tech or fitness apps; familiarity with CI/CD, complex build systems, deployment, and More ❯

Senior Android Engineer – Join a scaling InsurTech 🚀 💰Up to £80,000 🏡Hybrid Working – London CC based office 📱Kotlin We’re currently partnered with a scaling InsurTech – one of the UK’s most exciting scale-ups – as they are now looking for a Senior Android Engineer to join their growing team. They are now entering a new growth phase and … and participate in code review What are they looking for: Experience within Android development Good understanding of software architecture, design patterns and best practices Experience in app development using Kotlin, Jetpack Libraries, Jetpack Compose Knowledge in building SDKs that are scalable and user-friendly If this sounds like a great opportunity for you and you’d like to learn More ❯

Senior Android Engineer – Join a scaling InsurTech 🚀 💰Up to £80,000 🏡Hybrid Working – London CC based office 📱Kotlin We’re currently partnered with a scaling InsurTech – one of the UK’s most exciting scale-ups – as they are now looking for a Senior Android Engineer to join their growing team. They are now entering a new growth phase and … and participate in code review What are they looking for: Experience within Android development Good understanding of software architecture, design patterns and best practices Experience in app development using Kotlin, Jetpack Libraries, Jetpack Compose Knowledge in building SDKs that are scalable and user-friendly If this sounds like a great opportunity for you and you’d like to learn More ❯

Job Title: Staff Backend Engineer (Kotlin) Location: Remote (UK-based candidates only) Salary: £100,000 - £130,000 Reports To: CTO Industry: Healthcare About the Company: I’ve partnered with an exciting HealthTech start-up on a mission to revolutionise healthcare through technology. Following investment, they are now looking for a Staff Backend Engineer to join the team and help … technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Tech Stack: Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Database: PostgreSQL Cloud Platforms: AWS or GCP Containers & Orchestration: Docker, Kubernetes CI/CD for continuous integration and … deployment What We’re Looking For: 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker More ❯

will lead the evolution of our desktop web experience using React, contribute to internal back office tools, and work closely with engineers across mobile and shared codebases powered by Kotlin Multiplatform (KMP). While prior KMP experience isn't required, this role will involve engaging with shared business logic and platform-level architecture written in Kotlin-so a … inform web strategy, shape feature direction, and align technical decisions with long-term business goals Collaborate closely with engineers across mobile, backend, and shared code teams-integrating seamlessly with Kotlin Multiplatform and Java-based content services Shape and uphold frontend architecture, coding standards, and best practices for maintainable, testable, and scalable codebases Contribute to internal BackOffice tools that support … understanding of performance optimization, responsive design, accessibility, and web standards Experience integrating with backend APIs and collaborating with cross-functional platform teams Excited to work closely with engineers across Kotlin Multiplatform, mobile, and backend domains-and comfortable learning new technologies when needed Familiarity with backend or service-layer development (e.g., Java or other JVM languages), especially as it relates More ❯

what's working and what's not, and you'll have the space to suggest improvements and shape best practices across the Android codebase. The tech setup is modern - Kotlin, Hilt, MVVM, clean architecture - with continuous deployment and strong observability. But what really sets this contract apart is the sense of ownership you'll have, and the speed at … which good ideas make it into production. Senior Android Engineer - Key Skills: Advanced Kotlin skills and deep knowledge of Android SDK Proven experience shipping mobile features at scale Strong understanding of modern Android architecture and design patterns Experience in performance optimisation and scalable UI Confident working in fast-moving, user-focused teams Bonus points for experience in accessibility, testing More ❯

Requirements You should also have proficiency in at least one programming language or framework (JavaScript, TypeScript, Python, C, C#, C++, HTML/CSS, React, Go, Java, Kotlin, SQL, or Swift) to solve coding problems similar to those found on platforms like LeetCode or HackerRank. It’s important. Salary 59,202 - 63,149 GBP per year Additional Requirement We expect More ❯

an open-source, standardised representation of financial contracts and events. You will collaborate with domain experts, engineers, and product stakeholders to formalise financial workflows into code, using Java and Kotlin to build scalable, event-driven systems. Your work will drive consistency, transparency, and interoperability across our platform, enabling features such as post-trade automation, collateral mobility, regulatory reporting, and … WHAT YOU'LL DO Architecture & Engineering Design and implement services around the FINOS CDM, aligning closely with formal domain-driven principles. Build reactive, event-driven components using Java and Kotlin, ensuring scalability and resilience. Work with Kafka or similar messaging platforms to deliver asynchronous, high-throughput event processing. Translate business logic and financial workflows into formal domain models and … and associated technologies. Provide mentoring and technical leadership to other engineers working on CDM-aligned services WHAT WE'RE LOOKING FOR Must-haves Strong commercial experience with Java and Kotlin in event driven data-intensive environments. Experience leading cross-functional technical initiatives from architecture to delivery. Deep understanding of domain-driven design (DDD) and experience building production systems with More ❯

for a Mobile App developer, with experience in the development of iOS and Android apps to take our systems to the next level. Particularly with experience in Objective C, Kotlin and PHP (Laravel). You will be working with a team of people who are very passionate about their work and the delivery of their systems. We are committed … an environment that supports both the professional and personal growth of our team. Key skills include A minimum of 2 years' experience working with and developing with Objective C, Kotlin and PHP (Laravel) in production environments, where best practice is followed Experience with the PHP Standard Recommendation (PSR) coding standard Good experience in Git source/version control management More ❯

is crucial to improving performance, refining UX, and shaping the future of mobile at the organisation. Currently built using React Native, the app increasingly incorporates native elements (Swift/Kotlin) to unlock better performance and user experience. The incoming Android + iOS Engineers will be instrumental in driving this evolution forward. Key Responsibilities Collaborate with the Engineering Manager and … backend, and product teams Drive technical excellence, with a focus on high-quality code, maintainability, and best-in-class mobile experience Candidate Profile Strong experience developing mobile apps using Kotlin Deep understanding of native Android development, frameworks, and tools Proven track record of delivering high-quality, performant applications A passion for clean, maintainable code and continuous improvement Strong sense More ❯

is crucial to improving performance, refining UX, and shaping the future of mobile at the organisation. Currently built using React Native, the app increasingly incorporates native elements (Swift/Kotlin) to unlock better performance and user experience. The incoming Android + iOS Engineers will be instrumental in driving this evolution forward. Key Responsibilities Collaborate with the Engineering Manager and … backend, and product teams Drive technical excellence, with a focus on high-quality code, maintainability, and best-in-class mobile experience Candidate Profile Strong experience developing mobile apps using Kotlin Deep understanding of native Android development, frameworks, and tools Proven track record of delivering high-quality, performant applications A passion for clean, maintainable code and continuous improvement Strong sense More ❯

is crucial to improving performance, refining UX, and shaping the future of mobile at the organisation. Currently built using React Native, the app increasingly incorporates native elements (Swift/Kotlin) to unlock better performance and user experience. The incoming Android + iOS Engineers will be instrumental in driving this evolution forward. Key Responsibilities Collaborate with the Engineering Manager and … backend, and product teams Drive technical excellence, with a focus on high-quality code, maintainability, and best-in-class mobile experience Candidate Profile Strong experience developing mobile apps using Kotlin Deep understanding of native Android development, frameworks, and tools Proven track record of delivering high-quality, performant applications A passion for clean, maintainable code and continuous improvement Strong sense More ❯

Requirements 2.1 or first class STEM degree AAB at A Level (or equivalent) Skills Proficiency in either TypeScript or React is a must. Familiarity with JavaScript, Vue, Node, Yarn, Kotlin, and Swift would be beneficial. Qualities I value strong problem-solving abilities and a natural inclination to quickly pick up. Technologies React Security Swift Java Python Opportunity This position More ❯

in progress) Responsibilities Come up with diverse solutions for coding challenges. Evaluate code quality produced by AI models for correctness and performance. Technologies AI JavaScript Python C# CSS Java Kotlin React SQL Swift TypeScript More We are seeking proficient programmers to join our team and assist in training our AI chatbots to code. #J-18808-Ljbffr More ❯

DICE’s product, which takes card payments, scans tickets and helps fans get into the venue faster and have the best on-the-night experience. Our app is in Kotlin following the design pattern MVVM + Clean Architecture principles and modularised by product features. We use Coroutines heavily, Jetpack libraries (Room, WorkManager, Compose), Retrofit and Dagger2 for dependency injection. … need Experience building and iterating on at least one app in the Google Play Store is a plus. To be comfortable working on a large and modular code base. Kotlin or Java knowledge. Knowledge of project management tools such as JIRA, TestRails, Bitrise, Slack, Figma, Notion etc. The ability to work in an ad-hoc environment. About DICE Our More ❯

to complex technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Cloud Platforms: AWS or GCP CI/CD for continuous integration and deployment What We’re Looking For … 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker), and orchestration (Kubernetes). Experience in More ❯

to complex technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Cloud Platforms: AWS or GCP CI/CD for continuous integration and deployment What We’re Looking For … 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker), and orchestration (Kubernetes). Experience in More ❯

to complex technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Cloud Platforms: AWS or GCP CI/CD for continuous integration and deployment What We’re Looking For … 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker), and orchestration (Kubernetes). Experience in More ❯

scratch Work closely with product + design Shape architecture and ship new features Build something that genuinely helps people What we’re looking for: Strong experience in Swift and Kotlin/Java #J-18808-Ljbffr More ❯

years we set out to develop our own GPS rover solution. With the successful launch and continued growth of our SiteBoss rover we are looking to add an experienced Kotlin/Java based Android App Developer. This contracted position will have a base salary with a performance bonus contingent on experience and assuming salable and on-time results. In … issues given by the company. Office Hours are from 7:00AM to 4:00PM. Qualifications (samples of work with former employer references required prior to interview): Preferred experience in Kotlin or Java, and preferred knowledge of at least one backend language (PHP or Javascript is a plus). Experience with Docker or other container orchestration platforms is a plus. More ❯

to complex technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Cloud Platforms: AWS or GCP CI/CD for continuous integration and deployment What We’re Looking For … 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker), and orchestration (Kubernetes). Experience in More ❯

to complex technical challenges and continuously improve the product and systems. Stay up to date with emerging technologies and apply them to build future-proof, efficient systems. Primary language: Kotlin (experience with Java, Go, or similar multithreaded backend languages is welcome) Cloud Platforms: AWS or GCP CI/CD for continuous integration and deployment What We’re Looking For … 7+ years of backend engineering experience, with a strong background in multithreaded backend languages (Kotlin, Java, Go, Rust, etc.). Experience working in the HealthTech space Strong experience with PostgreSQL or similar relational databases. Proficient in system design, API development, and microservices architecture. Hands-on experience with cloud platforms (AWS, GCP), containerisation (Docker), and orchestration (Kubernetes). Experience in More ❯

have at least 7 years experience building and shipping highly-available, fault tolerant, production ready distributed backend systems. You have experience in any JVM based languages (such as Java, Kotlin, Scala) and are confident in your ability to build, debug and ship microservices. You are customer focused and continuously suggest how the backend can provide the best Customer Experience. … You pride yourself on consistent high levels of test coverage, strong technical documentation and effective monitoring. Preferably exposure to technologies such as Kafka, PostgreSQL, Redis. We use Kotlin, PostgreSQL, Kafka, Redis, Datadog, Amplitude, Grafana, BigQuery, ApacheSpark and more. A passion for crypto and the transformations it enables. COMPENSATION & PERKS Full-time salary based on experience and meaningful equity in More ❯