51 to 75 of 78 CircleCI Jobs in the UK

variety of languages, including Java and Go for backend and TypeScript for frontend • Open-source technologies like Cassandra, Spark, Elasticsearch, React, and Redux • Industry-standard build tooling, including Gradle, CircleCI, and GitHub What We Value Passion for helping other developers build better applications. Empathy for the impact your changes will have on the workflows and productivity of developers and end More ❯

partners, and platforms across the industry. Our Tech Stack: Apache Airflow Python Django React/Typescript AWS (S3, RDS withPostgresql, ElastiCache, MSK, EC2, ECS, Fargate, Lamda etc.) Snowflake Terraform CircleCI Bitbucket Your mission Lead and scale multiple engineering teams simultaneously, drawing on your previousexperience to navigate complex organisational challenges and drive technical excellence Architect the future structure of our engineering More ❯

ROLE: Senior Full Stack Engineer(focus on .Net) OFFICE: London, UK We are Two Circles. We are a Sports & Entertainment Marketing business. We grow audiences and revenues. We do that by knowing fans best. We work with clients to help More ❯

APIs - Experience with NodeJS & building web APIs Frameworks - Experience with frameworks such as Gatsby, NextJS, Remix Tooling - Experience with frontend tooling & building pipelines in modern CI platforms. One of: CircleCI, Travis, Gitlab CI, Github Actions Added bonus Cross-function - Experience working in cross-functional team environments (fe, be, data, etc all on the same team) Leadership - Experience leading swat teams More ❯

ROLE: Senior Frontend Engineer(6 month contract) Two Circles is a global sports agency. We drive growth for sports properties by delivering deeper connections with fans, through the intelligent use of data and technology. We work with some of the More ❯

Two Circles is a global sports agency. We drive growth for sports properties by delivering deeper connections with fans, through the intelligent use of data and technology. We work with some of the world's biggest sports organisations - including the More ❯

understanding of the Android platform Hands-on experience releasing apps to Google Play Strong knowledge of version control (Git), unit/UI testing (Espresso), and CI/CD tools (CircleCI) Experience working with RESTful APIs and integrating them into mobile apps Passion for modern Android development, including coroutines and Jetpack Compose Location: Leeds Duration: 6 months (View for Extension) Salary More ❯

architectures (e.g. clean architecture). Passion for delivering high-qualityUI/UXthat adapts well across screen sizes and device types. Comfortable working inCI/CD environments, using tools likeBitrise,CircleCI,GitHub Actions, orAzure DevOps. Hands-on experience withagile development practices, and a pragmatic approach to testing including unit, integration, and UI testing. Nice To Have Experience working onsports, media, or More ❯

TCA,modularisation,dependency injection). Passion for delivering high-qualityUI/UXthat adapts well across screen sizes and device types. Comfortable working inCI/CD environments, using tools likeBitrise,CircleCI,GitHub Actions, orAzure DevOps. Hands-on experience withagile development practices, and a pragmatic approach to testing including unit, integration, and UI testing. Nice To Have Experience working onsports, media, or More ❯

some older services written in Ruby on Rails. We are open to assessing new technologies that might improve our stack. Deploy and iterate: Release frequently to our customers using CircleCI and Spinnaker for CI/CD, and gather feedback quickly to inform subsequent iterations. Build your competency: Learn quickly by building market-leading technology with experienced colleagues in a high More ❯

Ruby on Rails. We've always got an eye open to assess new technologies that might improve our stack. Deploy and iterate: We release frequently to our customers, using CIrcleCI and Spinnaker for CI/CD, and quickly gather feedback in order to inform our next iteration. Build your competency: You will learn quickly by building market-leading technology with More ❯

re particularly interested in the range and complexity of the apps you've built. Expertise in Swift & SwiftUI Solid understanding of version control (Git), CI/CD pipelines (e.g., CircleCI, Fastlane), and mobile app deployment workflows. Experience writing unit tests, snapshot tests and UI automation tests to maintain high code quality. Comfortable working with APIs (REST, GraphQL) to integrate real More ❯

automated using Infrastructure as Code (IaC). Key Responsibilities Implement CI/CD pipelines with integrated quality and security gates. Champion the use of tools such as Jenkins, GitHub, CircleCI, and Terraform. Automate build, release, and deployment workflows across cloud and on-prem environments. Collaborate with software teams to embed DevOps tools and mindset across the organisation. Support large-scale … z2bz0 years' experience working with cloud platforms (AWS, Azure, or GCP). Strong scripting and automation skills (e.g., Python, JavaScript). Proficiency in tools such as Jenkins, CircleCI, GitHub/GitLab, Terraform, and Ansible. Familiarity with containerization (Docker), networking, and cloud security principles. Understanding of infrastructure, version control, and build management tools. Experience supporting production systems and leading DevOps transformation More ❯

Introduction In this role, you'll work in one of our IBM Consulting Client Innovation Centres (Delivery Centres), where we deliver deep technical and industry expertise to a wide range of public and private sector clients around the world. Our More ❯

Two Circles is a global sports agency. We drive growth for sports properties by delivering deeper connections with fans, through the intelligent use of data and technology. We work with some of the world's biggest sports organisations - including the More ❯

Experience in successfully releasing apps to the App Store - A quality-led development approach, including use of version control, unit/UI testing, and CI/CD (e.g. Git, CircleCI) - Understanding of RESTful APIs and how they integrate with mobile services - Enthusiasm for adopting emerging technologies such as Combine and SwiftUI - Knowledge of architectural design patterns like VIPER and MVVM More ❯

the iOS ecosystem. Familiarity with Apples Human Interface Guidelines (HIG). Experience publishing apps to the App Store. Proficient in version control and CI/CD practices (e.g., Git, CircleCI). Strong understanding of RESTful APIs and integration with back-end services. Experience with unit and UI testing. Knowledge of architectural patterns like MVVM or VIPER. Enthusiasm for modern technologies More ❯

architectures (e.g. clean architecture). Passion for delivering high-qualityUI/UXthat adapts well across screen sizes and device types. Comfortable working inCI/CD environments, using tools likeBitrise,CircleCI,GitHub Actions, orAzure DevOps. Hands-on experience withagile development practices, and a pragmatic approach to testing including unit, integration, and UI testing. Nice To Have Experience working onsports, media, or More ❯

BS-MS in Computer Science or related degree. Experience building complex applications for iOS devices using Swift. Experience with iOS instrumentation & monitoring. Experience with CI-CD pipelines, e.g. Bitrise, CircleCI, Jenkins. Experience shipping-iterating on at least one app in the App Store. Experience testing your work, from unit tests to UI tests. Experience working within a modularized app environment. More ❯

popular dish. Requirements 3+ years' experience as a ML Engineer or Data Scientist 3+ years' experience in Python Experience productionising ML models Experience using tools like Git, Docker, Kubernetes, CircleCI You know the fundamentals of machine learning and when they should be applied You can translate an unstructured business problem into a well-thought-out algorithmic solution You get satisfaction More ❯

Be an integral part of an agile team that's constantly pushing the envelope to innovate, build, enhance and deliver top-notch technology products. As a Software Engineer at JPMorgan Chase within the Strategic Growth Office and a part of More ❯

and test coverage Our Stack ECMAScript (latest specification, as needed) Webpack + Babel (ES6 modules) Styled Components Storybook Unit testing with Jest (over 9000 unit tests across our app) CircleCI for continuous integration and deployment Basic Qualifications Commitment to high development standards and comprehensive testing Ability to work collaboratively with peers across various functions Ability to estimate work, meet deadlines More ❯

testing practices, performance optimisation, and development standards across the frontend team. Shape the Development Process: Contribute to tooling, CI/CD workflows, and frontend architecture using technologies like GitHub, CircleCI, and AWS. What They’re Looking For: Strong hands-on experience with React, TypeScript, JavaScript, HTML5, and CSS3 Proven ability to lead or mentor developers in a commercial environment Solid … and modern CI/CD pipelines Excellent collaboration and communication skills Bonus if you've: Experience with MobX or other state management tools Knowledge of AWS, GitHub Actions, or CircleCI Exposure to data visualisation or geospatial mapping tools Understanding of backend environments (Python, Java) for context Experience working in secure, high-trust software environments Why Join? Fully remote (UK-based More ❯

with backend teams to implement sync logic, authentication, and secure data flows Contribute to scalable project architecture, reusable components, atomic design, and efficient CI/CD workflows (Expo EAS, CircleCI, etc.) Collaborate closely with other engineers, designers and stakeholders in a co-located team environment Participate in code reviews and knowledge sharing Skills & Experience: 5+ years of professional front-end … Expo Router) Familiar with local storage management and offline-first approaches Comfortable troubleshooting 3rd-party SDKs & forking open-source packages when needed Good understanding of mobile build pipelines (EAS, CircleCI, Xcode, Android Studio) Ability to demonstrate end-to-end delivery - from MVP to production Excellent communication & problem-solving skills Desirable: Prior payment provider integration (Stripe, Adyen, or similar) in a More ❯

Android Developer 6 Month contract initially Based: Remote/Leeds - Hybrid. Max 2 days p/w onsite. Rate: £350 -£450 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will More ❯