1 to 25 of 244 Permanent Kotlin Jobs in London

Senior Software Engineer

Location
Greater London, England, United Kingdom
impact to them through predictive analytics and visual storytelling. Role Details We are seeking a Senior Software Engineer with deep expertise in Java/Kotlin, cloud-native development, and distributed systems to design, build, and support scalable production banking and financial services systems. The ideal candidate will combine strong ...

Java Developer (SC Eligible/ Cleared)

Location
Greater London, England, United Kingdom
within an Agile/Scrum delivery model. Technical Skills Core Backend Languages: Java 11/17/21 (or later), with working knowledge of Kotlin/Scala a plus Messaging/Streaming: Kafka, RabbitMQ, event-driven architecture Testing: JUnit, Mockito, TDD/BDD, Cucumber Build & CI/CD: Maven ...

Software Engineer

Location
Greater London, England, United Kingdom
designing and delivering systems that can exceed the exacting demands of our clients. Our tech stack: Java/Spring Boot ecosystem (and some Kotlin) Kubernetes, Docker, Helm, Terraform, AWS Kafka, Redis, PostgresSQL , Spring reactive, Quarkus Gradle, Jenkins, SonarQube, Checkmarx Ideally you will have... Solid Java software development skillset, ideally ...

Senior Software Engineer I (Growth)

Location
Greater London, England, United Kingdom
functional teams. Experience working full‐stack, or a strong interest in stretching across the stack. Bonus points if you have Experience with Swift or Kotlin for mobile, or Next.js for web experiences. Experience working on growth, experimentation, or funnel optimisation teams. Experience with analytics and experimentation tooling to support ...

Java Full Stack Engineer-Consultant-Digital Excellence

Location
Greater London, England, United Kingdom
able to work on a vast variety of projects and get exposure to a variety of technology such as (but not exhaustively) NodeJS, Java, Kotlin, Spring boot framework, RESTful microservices, NoSQL databases.## **YOUR PROFILE*** Extensive experience of building microservices with Java (Spring Boot)* Experience using JavaScript/Typescript ...

Senior Software Engineer (with Delivery Management)

Location
Greater London, England, United Kingdom
keeping stakeholders informed. A track record of coordinating work across more than one team and keeping cross-team dependencies under control. Java or Kotlin, including Android app and NDK/JNI development, and iOS development in Swift or Objective-C. An understanding of usability, user experience and application design. ...

Software Engineer (Mobile) - London

Location
Greater London, England, United Kingdom
production. Comfortable working across the stack : you've touched databases, queues, or cloud infra not just UI. Experience with native iOS or Android development (Kotlin/Swift) is a strong plus we occasionally need to go below the managed Expo layer. Familiar with real-time systems, push notifications ...

Software Engineer (Mobile) - London · London

Location
Greater London, England, United Kingdom
production. Comfortable working across the stack: you've touched databases, queues or cloud infrastructure, not just UI. Experience with native iOS or Android development (Kotlin/Swift) is a strong plus, as we occasionally need to go below the managed Expo layer. Familiarity with real-time systems, push notifications ...

Software Architect - Mobile

Location
Greater London, England, United Kingdom
UIKit , SwiftUI , Combine , and other modern iOS frameworks. Experience with app performance optimization , modularization , and offline-first strategies . Familiarity with Android development (Kotlin/Java) is a strong plus. Experience integrating with APIs, handling mobile data storage, caching, and background tasks. Strong knowledge of App Store submission , mobile ...

Senior Software Engineer II (Full-Stack)

Location
Greater London, England, United Kingdom
Tooling (continuously re-evaluated): Claude Code, Cursor, Linear with agents, Github with GHA Nice to have, not required Experience with native mobile development (Swift, Kotlin, SwiftUI, watchOS) - useful given how close some of our hardest problems sit to the OS, but not a dealbreaker if you don't have ...

Senior Flutter Engineer

Location
London Borough of Southwark, England, United Kingdom
shipped solutions, prototyping early to validate ideas, and take the initiative on improvements rather than waiting to be asked. Nice to have Native Android (Kotlin) or iOS (Swift) experience. Our legacy native apps are still live, and a native background helps when working out what existing behaviour we need ...

Principal Software Engineer - Data & AI Platform (Hybrid)

Location
Greater London, England, United Kingdom
solutions. Strong engineering culture, real influence, and meaningful problems to solve. What We’re Looking For Core Experience Strong foundation in JVM-based development (Kotlin preferred, Java welcome) Experience designing and implementing data-driven APIs Background working on large-scale web services Solid SQL experience, including schema design ...

Senior Flutter Engineer

Location
Greater London, England, United Kingdom
shipped solutions, prototyping early to validate ideas, and take the initiative on improvements rather than waiting to be asked. Nice to have Native Android (Kotlin) or iOS (Swift) experience. Our legacy native apps are still live, and a native background helps when working out what existing behaviour we need ...

Senior Mobile Engineering Manager (iOS & Android SDK)

Location
Greater London, England, United Kingdom
every listed qualification exactly. If this role aligns with your strengths and experience, we encourage you to apply. Tools & Education Required: production experience with Kotlin and Swift. Required: experience with Git-based development workflows and CI/CD release pipelines (We use Github Actions). Required: experience with observability ...

Senior Software Engineer - UK

Location
City Of London, England, United Kingdom
years building production software, with a track record of delivering complex work independently. Strong in a modern typed language such as TypeScript, Go, Java, Kotlin, Python, or C#. Depth on either the client side, in a component framework such as React, Angular, or Vue, or on the service side. ...

Senior Java Engineer

Location
Greater London, England, United Kingdom
engineers, encouraging knowledge sharing and continuous development. What We’re Looking For: 4-5 years hands-on experience working with Java and/or Kotlin Commercial experience with AWS (preferred), Azure or GCP. Experience working with CI/CD pipelines, DevOps practices and development automation. Strong understanding of software ...

iOS Developer London

Location
Greater London, England, United Kingdom
C. Experience with or an understanding of newer approaches to networking, like GraphQL. Other mobile development experience, such as Android development using Java or Kotlin, or cross‐platform development with React Native, Flutter, Ionic, Xamarin, or Cordova. Perks and Benefits Pension Scheme Parental Leave Program Flexible Working Hours Work ...

Engineering Lead - Longevity New Mansion House, London

Location
Greater London, England, United Kingdom
services. Experience with automated testing, CI/CD, monitoring and DevOps practices. A collaborative approach with strong problem-solving and communication skills. Experience with Kotlin Multiplatform, Azure integration services or scaling engineering teams and codebases would be advantageous. What You’ll Get The opportunity to be part ...

Senior/ Lead Android Engineer

Location
Greater London, England, United Kingdom
development guidelines A good grasp of the full mobile product lifecycle, with practical experience working within Agile teams Nice to have Knowledge of Kotlin programming language, Clean Architecture and reactive programming An eye for UX and interaction design – you care about how things feel, not just how they work ...

Engineering Manager - Scale a FinTech Insurance Platform

Location
Greater London, England, United Kingdom
microservice-based architectures A background in development with strong prior experience in languages and frameworks such as Java, Python, JavaScript, Node.js, Spring Boot, Flask, Kotlin Direct commercial experience with a major cloud provider. GCP is preferred Experience working in and advocating for a fully-automated, rapid development environment where ...

Solutions Architect

Hiring Organisation
Euro Car Parks
Location
Central London, South East, United Kingdom
Employment Type
Permanent Contract, On-site
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/ Lead Android Engineer

Location
Greater London, England, United Kingdom
development guidelines A good grasp of the full mobile product lifecycle, with practical experience working within Agile teams Nice to have: Knowledge of Kotlin programming language, Clean Architecture and reactive programming An eye for UX and interaction design - you care about how things feel, not just how they work ...

Lead Engineer - Platform SDLC

Location
London, United Kingdom
communication and teamwork skills Willingness to learn new technologies and adapt to changing environments Preferred Qualifications, Capabilities, and Skills: Experience with Python, Java, or Kotlin in addition to Golang Familiarity with Docker containers and Kubernetes environments Knowledge of Google Cloud Platform (GCP) and Cloud Key Management services Experience with ...

Lead Engineer - Platform SDLC

Hiring Organisation
Hackajob Ltd
Location
South West London, South East, United Kingdom
Employment Type
Permanent Contract, On-site
communication and teamwork skills Willingness to learn new technologies and adapt to changing environments Preferred Qualifications, Capabilities, and Skills: Experience with Python, Java, or Kotlin in addition to Golang Familiarity with Docker containers and Kubernetes environments Knowledge of Google Cloud Platform (GCP) and Cloud Key Management services Experience with ...

Lead Engineer - Platform SDLC

Location
Westminster, West End, United Kingdom
communication and teamwork skills Willingness to learn new technologies and adapt to changing environments Preferred Qualifications, Capabilities, and Skills: Experience with Python, Java, or Kotlin in addition to Golang Familiarity with Docker containers and Kubernetes environments Knowledge of Google Cloud Platform (GCP) and Cloud Key Management services Experience with ...