1 to 25 of 448 OO Jobs in the UK

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 ...

Senior C# .Net Developer

Hiring Organisation
Advanced Resource Managers Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 per day
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)

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 ...

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

Hiring Organisation
Fitch Ratings
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 70 K
modern frontend development practices. Experience designing and developing RESTful APIsand 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 delivery practicesAI ...

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

Hiring Organisation
Fitch Ratings
Location
London, UK
Employment Type
Full-time
modern frontend development practices. Experience designing and developing RESTful APIsand 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 Java Fullstack Developer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
ability to write and troubleshoot SQL queries. Experience with Docker/Kubernetes or OpenShift Strong knowledge of software engineering principles, design patterns and object-oriented programming. Experience developing and maintaining complex enterprise applications. Familiarity with Git, testing, debugging and modern software development practices. Strong analytical and problem-solving ...

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 Java / Angular Developer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
ability to write and troubleshoot SQL queries. Experience with Docker/Kubernetes or OpenShift Strong knowledge of software engineering principles, design patterns and object-oriented programming. Experience developing and maintaining complex enterprise applications. Familiarity with Git, testing, debugging and modern software development practices. Strong analytical and problem-solving ...

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 Fullstack Developer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per 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 ...

IT / OT - Software Engineer

Hiring Organisation
Cummins
Location
Darlington, County Durham, United Kingdom
Salary
£ 60 K
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 plusOperational Technology & Manufacturing Knowledge: Familiarity with robotic and OT systems (AMRs, Cobots, PLCs), industrial KPIs (OEE, MTBF, cycle ...

Senior Software Engineer II -Java

Hiring Organisation
LexisNexis Risk Solutions Group
Location
London, UK
Employment Type
Full-time
troubleshoot complex production and customer issues. Mentor and guide junior engineers, fostering a culture of collaboration and continuous learning. RequirementsStrong 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 Boot ...

Senior Software Engineer, Web Development – AI

Hiring Organisation
Roku
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 70 K
technology, such as AWS and GCP.Experience of building large scale and low latency distributed systems.Solid understanding of algorithms, data structures, performance optimisation techniques, object-oriented programming.Experience using modern AI-assisted and agentic development workflows in day-to-day engineering using AI/ML APIs and SDKsHands-on experience ...

Software Engineer - Java

Hiring Organisation
Millennium Management
Location
London, UK
Employment Type
Full-time
exposure to Java and/or Python (e.g., Core Java, collections, basic concurrency; interest in Java 17+).Solid computer science fundamentals, including object-oriented design, data structures, and algorithms. Bachelor's degree in Computer Science, Engineering, or a related technical field from a leading institution, or equivalent experience. ...

Senior Software Engineer - Rock Physics Applications

Hiring Organisation
Halliburton
Location
Abingdon, Oxfordshire, UK
Employment Type
Full-time
staying ahead of technology trends. Experience with cloud architecture (AWS, Azure, and/or Google Cloud). Proven experience with software engineering fundamentals: object-oriented and component-based design, design patterns, unit/integration testing, version control (Git), and code review workflows. Hands-on CI/CD experience ...

QE AI Engineer (Python)

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
with web, API, and non-functional testing approaches Experience using CI/CD pipelines to integrate and run automated tests Good understanding of object-oriented programming principles and modern engineering practices Experience working with Git-based source control and collaborative development workflows Strong problem-solving and analytical skills ...

Senior Software Engineer, Reference Data Platform (Python/Oracle) - AVP

Hiring Organisation
Citigroup
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
track record of delivering enterprise-scale systems into production.Python Expertise: Strong hands-on proficiency in Python (3.x) for enterprise application development, data manipulation, object-oriented design and automated testing.Oracle & SQL Mastery: Advanced proficiency with Oracle Database (12c/19c+), including complex SQL query design, PL/SQL programming ...

Microsoft Consultant

Hiring Organisation
Solirius Consulting
Location
London, UK
Employment Type
Full-time
.NET and Microsoft technology ecosystem. Key SkillsStrong commercial experience with C# and .NET.Experience developing applications using ASP.NET/ASP.NET Core. Good understanding of object-oriented programming and software development principles. Experience developing and consuming REST APIs/web services. Strong understanding of software development lifecycle and coding best ...

Senior Platform Engineer

Hiring Organisation
WTW
Location
Reigate, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
requirements analysis, estimation, architecture/design, implementation, unit and system testing, deployment, operations, monitoring and incident management. Software engineering fundamentals Strong grounding in object oriented design, design patterns, SOLID principles, clean code practices, code review, documentation and Agile delivery. Core technical stack Hands-on experience with C# ...

Senior Platform Engineer

Hiring Organisation
Willis Towers Watson
Location
Reigate, Surrey, United Kingdom
Salary
£ 70 K
SaaS development lifecycle: requirements analysis, estimation, architecture/design, implementation, unit and system testing, deployment, operations, monitoring and incident management.Software engineering fundamentalsStrong grounding in objectoriented design, design patterns, SOLID principles, clean code practices, code review, documentation and Agile delivery.Core technical stackHands‐on experience with C# and .NET (Core/6+ ...

Senior Java Applications Developer

Hiring Organisation
Citigroup
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
Collections framework.Utilize Spring Framework effectively for application development.Work extensively in creating and optimizing SQL queries.Ensure adherence to software engineering best practices, object-oriented programming (OOP) principles, and design patterns.Contribute to the continuous integration and continuous delivery (CI/CD) pipelines.Manage source code effectively using tools such ...

Full Stack Software Engineer

Hiring Organisation
Sartorius
Location
Royston, Hertfordshire, UK
Employment Type
Full-time
delivering commercial software products in production environments· Strong software engineering skills with proven proficiency in JavaScript/TypeScript and C#· Solid knowledge of object-oriented software design principles and modern software development practices· Experience across multiple stages of the software development lifecycle, from requirements definition through testing ...

Senior Full Stack Software Engineer - Space

Hiring Organisation
Hays
Location
Didcot, United Kingdom
developing software for mission-critical applications in the space domain or adjacent industries. * 5+ years of full stack development experience. * 5+ years of object-oriented programming experience (preferably in Java, Python, or C++). * 5+ years of experience developing frontend applications with modern frameworks (preferably React). Highly ...

Senior Full Stack Software Engineer - Space

Hiring Organisation
Hays
Location
Didcot, Oxfordshire, UK
developing software for mission-critical applications in the space domain or adjacent industries. * 5+ years of full stack development experience. * 5+ years of object-oriented programming experience (preferably in Java, Python, or C++). * 5+ years of experience developing frontend applications with modern frameworks (preferably React). Highly ...

Software Engineer

Hiring Organisation
Kensington Mortgage Company
Location
Marlow, Buckinghamshire, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
delivery partners. What we’re looking for You’ll have strong commercial software engineering experience, including: C# and modern .NET , including ASP.NET Core Object-oriented development, SOLID principles and dependency injection Designing, building and consuming REST APIs , including OpenAPI Microsoft Azure , particularly PaaS and serverless services Relational databases ...