1 to 25 of 822 OO Jobs in the UK

Senior Lead Full-Stack Software Engineer

Location
Greater London, England, United Kingdom
/CD, application resiliency, security, Git/GitHub, and Test Driven Development. Strong proficiency in Python, with a deep understanding of object-oriented programming principles. Strong proficiency in SQL, with experience of building data pipelines, data models, and data transformation within data warehouses, knowledge of tools such ...

Lead Software Engineer, Full-Stack Applications - AI Fluent (London)

Location
Greater London, England, United Kingdom
frontend development practices. Experience designing and developing RESTful APIs and integrating with third-party services. Solid understanding of software design principles, design patterns, object-oriented programming, data structures, algorithms, and scalable system architecture. Experience working with relational and NoSQL databases. Familiarity with Agile development methodologies and modern software ...

Senior C# .Net Developer

Location
Greater London, England, United Kingdom
6+ ASP.NET Core/Web API REST APIs and microservices SQL Server, including complex queries, stored procedures and optimisation Entity Framework/ORM Object-oriented design and design patterns Distributed systems and enterprise integration Unit and automated testing Azure DevOps, Git and CI/CD Agile/Scrum ...

Senior Software Engineer (Full Stack)

Location
Belfast City District, Northern Ireland, United Kingdom
React, Redux and React Query, alongside HTML5, CSS3 and modern JavaScript frameworks. Experience developing backend services and APIs using TypeScript or another object-oriented language. Strong knowledge of REST APIs, GraphQL, WebSockets and microservices architecture. Commercial experience with AWS services, ideally Lambda, Fargate, API Gateway and AppSync. Experience ...

Senior C# .Net Developer

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day Umbrella Inside IR35
6+ ASP.NET Core/Web API REST APIs and microservices SQL Server, including complex queries, stored procedures and optimisation Entity Framework/ORM Object-oriented design and design patterns Distributed systems and enterprise integration Unit and automated testing Azure DevOps, Git and CI/CD Agile/Scrum ...

Sr. Full Stack Developer (Java, React & Python)

Location
City Of London, England, United Kingdom
development and integration.Proven track record in developing base frameworks, reusable programs and defining standards.Knowledge of cloud platforms AWS and containerization technologies.Strong understanding of object-oriented programming principles and design patterns.Proficiency in database design and SQ and NoSQL databases like Redis, DynamoDB.Good understanding of the Agile methodologies and working ...

Sr. Full Stack Developer (Java, React & Python)

Hiring Organisation
Broadridge
Location
London, UK
Employment Type
Full-time
Proven track record in developing base frameworks, reusable programs and defining standards. Knowledge of cloud platforms AWS and containerization technologies. Strong understanding of object-oriented programming principles and design patterns. Proficiency in database design and SQ and NoSQL databases like Redis, DynamoDB.Good understanding of the Agile methodologies ...

Senior Full-Stack Developer

Location
United Kingdom
Flask. Experience with modern architecture patterns, including microservices, event-driven architecture (Kafka, RabbitMQ), domain-driven design and GraphQL. A strong grasp of object-oriented and functional programming, applied to build modular, extensible and maintainable codebases. Core technical skills Expert Python 3 skills, with experience building high-throughput ...

Sr. Full Stack Developer

Location
Greater London, England, United Kingdom
Proven track record in developing base frameworks, reusable programs and defining standards.* Knowledge of cloud platforms AWS and containerization technologies.* Strong understanding of object-oriented programming principles and design patterns.* Proficiency in database design and SQ and NoSQL databases like Redis, DynamoDB.* Good understanding of the Agile methodologies ...

Technical Lead

Location
Greater London, England, United Kingdom
solutions, e.g., K8, Docker, Kaniko, etc. Proficiency in at least one of the standard programming languages – Java/JavaScript, C#, Python, or similar Object-oriented programming Proficiency in at least one of the standard scripting languages – Terraform, Bash, Ansible, etc. Good understanding of Software engineering concepts, e.g., coding ...

Software Development Engineer in Test

Hiring Organisation
S Three Management Services Limited
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
£450-550 per day
behaviour and quality risks What you could bring Most roles of this type require the following: Must-have Proficiency in at least one object-oriented programming language, such as Java, C#, Python or similar Hands-on experience building and maintaining test automation frameworks Working knowledge of APIs, microservices ...

Software Development Engineer in Test

Hiring Organisation
S Three Management Services Limited
Location
London, England, United Kingdom
behaviour and quality risks What you could bring Most roles of this type require the following: Must-have Proficiency in at least one object-oriented programming language, such as Java, C#, Python or similar Hands-on experience building and maintaining test automation frameworks Working knowledge of APIs, microservices ...

Senior Software Engineer II -Java

Location
Greater London, England, United Kingdom
troubleshoot complex production and customer issues. Mentor and guide junior engineers, fostering a culture of collaboration and continuous learning. Requirements Strong foundation in object-oriented design, development, and standard design patterns. Expert-level development experience using Java, Spring Boot and Web Services. Strong understanding of REST APIs, Spring ...

Senior Java Developer

Hiring Organisation
CGI
Location
London, England, United Kingdom
Java (version 8 or higher) and Spring Boot.• Proven experience designing, developing and maintaining enterprise-level back-end applications.• Strong understanding of object-oriented programming, software design principles and RESTful API development.• Experience working in Agile environments, including Scrum ceremonies and iterative software delivery.• Proficiency with development ...

Graduate Software Engineering Programme April 2027

Hiring Organisation
Capgemini
Location
Telford and Wrekin, United Kingdom
Employment Type
Full Time
Salary
35000 GBP Annually
Engineer: Degree in Computer Science or related a STEM discipline Proficiency in one or more programming languages (Java, Python, C++, JavaScript) Understanding of object-oriented programming (OOP) principles Experience with modern frameworks (e.g. React, Angular, Spring Boot, Django) Knowledge of full-stack development concepts (e.g. MEAN/MERN ...

Senior Python Developer/ Engineer

Location
City of Westminster, England, United Kingdom
Docker and AWS ECS/Fargate. Experience integrating with third‐party APIs, enterprise platforms, and external services. Strong understanding of software design patterns, object‐oriented programming principles, clean code practices, and distributed system design. Experience implementing API security using OAuth2, JWT, OpenID Connect, API Keys, and secure authentication ...

AI Native Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
Experience with agentic AI workflows and steering techniques for reliable automation Ability to ensure alignment with architectural patterns, coding standards and performance Strong Object Oriented Programming skills (e.g. Java, Python, C#) Experience with CI/CD pipelines and DevOps practices Knowledge of cloud platforms (AWS, Azure ...

Software Engineer II - Blockchain/ Digital Assets

Location
Greater London, England, United Kingdom
software engineering experience with Java Spring Boot/Python or similar modern backend frameworks Understanding of software development fundamentals: data structures, algorithms, object-oriented design Experience with version control (Git) and working in collaborative development environments Eagerness to learn distributed systems, blockchain technologies, and cloud-native architectures Strong ...

Software Engineer - Junior .Net/C# - Contract

Location
Poole, England, United Kingdom
Studio. APIs & Architecture: Practical experience building and consuming REST/RESTful interfaces and working with microservice patterns. Core Software Design: Strong grasp of Object-Oriented Design (OOD), SOLID principles, and common design patterns. Testing: Familiarity with unit testing frameworks (e.g., NUnit) and automated test methodologies. Tooling & Version Control ...

IT / OT - Software Engineer

Location
Tees Valley, England, United Kingdom
Oracle, PostgreSQL), and integration technologies (APIs, REST, SOAP, webhooks). Proficient in an enterprise language such as: .NET, Java, or C# with strong object-oriented design and modular architecture principles a plus Operational Technology & Manufacturing Knowledge: Familiarity with robotic and OT systems (AMRs, Cobots, PLCs), industrial KPIs ...

Senior Java Developer

Hiring Organisation
Avanti Recruitment
Location
EC1, Farringdon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
commercial frontend development experience using Angular, React or Vue.js. Good understanding of relational databases, including writing and troubleshooting SQL queries. Strong understanding of object-oriented programming, software engineering principles and design patterns. Experience developing and maintaining complex enterprise applications. Familiarity with Git, testing, debugging and modern software development ...

Senior Fullstack Java Developer

Hiring Organisation
Avanti Recruitment
Location
EC1, Farringdon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
commercial frontend development experience using Angular, React or Vue.js. Good understanding of relational databases, including writing and troubleshooting SQL queries. Strong understanding of object-oriented programming, software engineering principles and design patterns. Experience developing and maintaining complex enterprise applications. Familiarity with Git, testing, debugging and modern software development ...

Senior Software Engineer - (Permanent or Fixed-Term Contract)

Location
Woking, England, United Kingdom
.NET, with working knowledge of Python and TypeScript. Experience delivering software solutions using agile methodologies and software engineering best practices. Strong understanding of object-oriented design and software engineering principles, including SOLID principles, with the ability to develop maintainable and scalable solutions. Proven ability to analyse complex technical ...

Associate Manager (Java) - Newcastle

Location
Newcastle upon Tyne, England, United Kingdom
drive implementation Experience with CI/CD pipelines, automated testing, and cloud-native application development, including containerisation technologies such as Docker and Kubernetes Object-oriented programming principles and software design patterns SQL and NoSQL database technologies, including MySQL, Oracle, PostgreSQL, and MongoDB Agile delivery methodologies and Scrum frameworks ...

Senior C# .Net Developer

Location
Greater London, England, United Kingdom
6+ ASP.NET Core/Web API REST APIs and microservices SQL Server, including complex queries, stored procedures and optimisation Entity Framework/ORM Object-oriented design and design patterns Distributed systems and enterprise integration Unit and automated testing Azure DevOps, Git and CI/CD Strong troubleshooting ...