26 to 50 of 88 Kotlin Jobs in London

Engineering Lead - Account Management

Hiring Organisation
Wise
Location
London, UK
Employment Type
Full-time
correctness of critical systems at scale. Comfortable in a JVM codebase, or confident you'll get there fast - we're on Java/Kotlin and Spring Boot. LeadershipExperience leading a team of engineers and owning what they deliver. Leadership through trust: you give people context and direction ...

Senior Data Platform Engineer (Data Lake and Catalog)

Hiring Organisation
Expedia
Location
London, UK
Employment Type
Full-time
engineering problems. Experience delivering end-to-end solutions with a focus on scalability, reliability, and observability. Strong knowledge of the JVM and server-side Kotlin/Java programming. Solid understanding of the Hadoop ecosystem, including Spark, Hadoop, and Hive. Strong experience with cloud platforms and data infrastructure, especially ...

Staff Agentic Engineer

Hiring Organisation
John Lewis Partnership
Location
London, UK
Employment Type
Full-time
business operate to inform architecture and/or product roadmaps. Essential skills/experience you'll needExtensive experience of software engineering using Java (or Kotlin) in a complex commercial environment. Experience of Agentic Engineering including working with agentic coding environments and automated engineering workflows. Experience of building & implementing agentic ...

Android Developer - Fintech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
ensure that it is working as expected. The Android Developer Must have: At least 3 years of commercial experience in Android development. Proficient in Kotlin and/or JavaExperience with common design patterns such as MVP and MVVMExperience with financial systemsExperience creating rich mobile interfacesExcellent verbal communication, remote development ...

Principal Software Engineer - ThousandEyes

Hiring Organisation
CISCO Systems
Location
London, UK
Employment Type
Full-time
about developer productivity and how we can constantly improve on this. Minimum QualificationsProfessional software engineering experience building and maintaining production-grade applications using Java, Kotlin, or C++.Software architecture experience in at least two of the following domains: distributed systems, enterprise SaaS, endpoint development, or low-level networking protocols.4+ years ...

Senior Software Engineer (Full Stack) — Java & React

Hiring Organisation
Zühlke Engineering
Location
London, UK
Employment Type
Full-time
high-performing engineering squad, building and operating business-critical digital services. This is a backend-led full-stack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services and APIs. You will also contribute to modern … other engineers and help maintain high standards of engineering quality. How you will make an impact Build and maintain reliable JVM-based services using Kotlin or modern Java. Design and develop APIs and integrations following industry standards. Contribute to API design standards and documentation. Deliver complete ...

Full Stack Java Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
display and foster them,itsdeeply embedded within our DNA. Invest in us andwellinvest in you!. Job Description Weare seeking an experienced Senior Kotlin Developer to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly and there will be an opportunity for you to achieve medium …/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role using the following technologies: Frontend - TypeScript, Node, Express JS Backend - Kotlin, Spring Boot, Hibernate Experience in estimation and sizing Integration experience API Design experience Cloud experience Appetite to work with emerging AI technologies SC Eligible ...

Principal Developer

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate ...

Backend Engineer - AI Native

Hiring Organisation
LinuxRecruit
Location
London, UK
Employment Type
Full-time
particular set of technologies. You'll be working with a modern engineering stack built to support complex AI applications at enterprise scale. Backend: Kotlin and the wider Java ecosystemFrontend: React, Vite and TanStackWorkflow orchestration: TemporalLLM routing: PortkeyAI infrastructure: A purpose built LLM harness combining agent autonomy with enterprise grade ...

Senior Android Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day Inside IR35 via Umbrella
builds in-app messaging and social platforms. Direct/Indirect Management: Indirect only (cross-team project lead/mentoring). Top 3 Hard Skills: Kotlin/Android (8+ yrs), Agentic tools (Cursor/Claude), Real-time sync & API performance. Top 3 Soft Skills: Collaboration, Team-first mindset, Safety/ ...

Senior Android Engineer

Hiring Organisation
Randstad Technologies
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£600.00 - £650.00 per day
builds in-app messaging and social platforms. Direct/Indirect Management: Indirect only (cross-team project lead/mentoring). Top 3 Hard Skills: Kotlin/Android (8+ yrs), Agentic tools (Cursor/Claude), Real-time sync & API performance. Top 3 Soft Skills: Collaboration, Team-first mindset, Safety/ ...

Head of Data Engineering

Hiring Organisation
RecWorks
Location
London, UK
Employment Type
Full-time
process, and store large volumes of data from various sources, ensuring data quality and integrity. In terms of stack, you'll mainly use: Java, Kotlin, Python, AWS and GCP, Kafka, Pub/Sub, Spark, Dataflow, PostgreSQL, MySQL, BigQuery, Redshift, GraphQL, Kubernetes, Github Actions and ArgoCD.Benefits include: An annual bonus ...

Android Engineer

Hiring Organisation
SCALERS GROUP LIMITED
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £550 per day
scalable, and fit for purpose. Mentor and guide other engineers to uphold high coding standards and best practices. Skills & Experience Required Strong experience using Kotlin Android architecture patterns SOLID design principles Experience with Google Ad Manager Unit testing with JUnit and Mockito UI automation testing with Espresso ...

Software Developer - High Performance Trading Systems

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
with strict safety, throughput, and latency constraintsCollaborate with quants, infrastructure, and operations to solve complex engineering problemsWe're looking for: Exceptional programming ability in Kotlin, Java, or C++Deep understanding of algorithms, data structures, concurrency, and networked systemsPrior experience working in high-performance or real-time environmentsConfidence working close ...

Software Engineer - Polyglot / Any Tech

Hiring Organisation
Stanford Black
Location
London, UK
Employment Type
Full-time
they have the mentality of the right tool for the right job, across a stack of .Net Core, Python, C++ (low latency), F#, Java, Kotlin, Rust, Clojure, cloud, and they are heavily involved in the Open Source community. They have 10% Fridays as well where all engineers are able ...

Staff Product Engineer

Hiring Organisation
LinuxRecruit
Location
London, UK
Employment Type
Full-time
directly to customers, then watching your code go live inside large-scale organisations What you'll bring: Strong fundamentals: Deep comfort in modern languages (Kotlin, TypeScript, Python etc.) and no fear of picking up new onesA builder's DNA: Side projects, startup experience or open source contributionsAI-native experience ...

Tech Lead - Java

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate ...

Crypto Developer - Small Trading Firm

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
test python applications to support CeFi tradingSoftware Engineers MUST have: Proficiency in managing Ethereum and Solana nodesExperience with C++/Rust/Go/Kotlin or similarGood level of PythonWell-versed in the fundamentals of software engineeringComfortable operating across many layers of abstractionAble to work autonomouslyRobust development skillset including ...

Crypto Developer - HFT

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
python applications to support CeFi tradingTraders/Developers MUST have: Proficiency in managing Ethereum and Solana nodesExperience with C++/Rust/Go/Kotlin or similarGood level of PythonWell-versed in the fundamentals of software engineeringComfortable operating across many layers of abstractionAble to work autonomouslyRobust development skillset including ...

Product AI Engineer

Hiring Organisation
LinuxRecruit
Location
London, UK
Employment Type
Full-time
speaking directly to customers and seeing your code immediately deployed inside large scale organisations. What you will bringStrong fundamentals: Deep comfort with modern languages (Kotlin, Typescript, Python etc) and not afraid to pick up new onesA builder's DNA: You have side projects, startup experience, or open source contributions. ...

Software Engineering Intern

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£40,000
internship between June 21st 2027 - August 27th 2027 Knowledge of computer science fundamentals and any major programming languages (Java/JavaScript/Python/Kotlin/Swift) Ability to explain complex concepts to diverse audiences Commitment to best coding practices and code reviews Basic knowledge of modern web technologies ...

Backend Engineer (AI Native)

Hiring Organisation
LinuxRecruit
Location
London, UK
Employment Type
Full-time
technologies. The Tech Stack: The engineering team works with a modern technology stack designed to support rapid development without compromising scalability or reliability. Backend: Kotlin, supported by the wider Java ecosystem. Frontend: React, Vite and TanStack. Infrastructure and orchestration: Temporal. LLM routing: Portkey. AI infrastructure: A specialised LLM harness ...

Campus - Full Time - Software Engineer - 2027 (UK - London)

Hiring Organisation
American Express
Location
London, UK
Employment Type
Full-time
mobile engineering, AI/machine learning, data engineering, API development, or full-stack product development. Familiarity with Java, JavaScript, React, TypeScript, Python, C#, Go, Kotlin, Node.js, REST APIs, SQL, Spring, or similar frameworks and tools. Exposure to cloud-native development, microservices, containerization, CI/CD, DevOps, automated testing, accessibility … through coursework, projects, research, internships, open-source contributions, hackathons, or extracurricular activities using one or more languages such as Java, JavaScript, Python, C#, Go, Kotlin, Node.js, or similar technologies. Interest in building software applications across web, mobile, backend, cloud, API, microservices, or full-stack environments. Exposure to software development ...

Android Engineer

Hiring Organisation
Economist Group
Location
London, UK
Employment Type
Full-time
contributing to both new features and ongoing improvements to the app. How you will contribute in this role: Develop and maintain Android applications using Kotlin and modern frameworks. Build user interfaces and features in collaboration with Product and Design. Contribute to application architecture and code quality within the team. … deliver end-to-end functionality. Support testing, release, and CI/CD processes. What we're looking for: Experience in Android development. Proficiency in Kotlin and familiarity with Android frameworks (e.g. Jetpack Compose, Android SDK).Experience building and shipping mobile applications. Understanding of mobile development fundamentals, including UI patterns ...

Software Development Engineer

Hiring Organisation
Deerfoot Recruitment Solutions
Location
Hounslow, London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £430 per day + Hybrid Working
teams (5+ years preferred) Strong commercial experience in Java or a comparable language, plus production experience in at least one other, for example TypeScript, Kotlin, Python, Go or C# Comfortable working across back end and front end (TypeScript and Angular are the current front-end stack) A track record … candidates who have held roles including: Software Engineer, Backend Engineer, Platform Engineer, Full Stack Engineer, Lead Software Engineer, Principal Engineer, Technical Lead, Java Engineer, Kotlin Engineer, Python Engineer, TypeScript Engineer, Integration Engineer Deerfoot Recruitment Solutions Ltd is a leading independent tech recruitment consultancy in the UK. For every ...