1 to 25 of 280 OO Jobs in London

Systems Developer

Hiring Organisation
Massenhove Recruitment Limited
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £55,000 per annum
related field (or equivalent practical experience) desirable Knowledge 2-4 years of professional experience developing applications in Python Strong understanding of Python fundamentals, object-oriented programming, and design patterns Experience with at least one modern Python web framework (e.g. Django, Flask, or FastAPI) Solid understanding of relational databases ...

Technical Lead

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
Containerisation 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 programmingProficiency in at least one of the standard scripting languages – Terraform, Bash, Ansible, etc.Good understanding of Software engineering concepts, e.g., coding techniques ...

C# Developer - Front Office Investment bank

Hiring Organisation
Meraki Talent Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £850 per day, Negotiable
Agile environment. Champion clean code, software craftsmanship and engineering excellence. The ideal candidate will have Strong commercial experience with C# .NET and object-oriented programming principles. Excellent understanding of software design patterns and best practices. Strong experience building service-oriented or distributed systems. Advanced MS SQL development ...

Senior Software Engineer - Tax Technology

Hiring Organisation
KPMG
Location
London, United Kingdom
Salary
£ 80 K
over time. You will have ... Deep Technical Expertise: Hands on experience designing, specifying and developing software. Programming Skills: Have heavily used modern object-oriented languages such as C# or Java. Enterprise Expertise: Know how to build REST APIs and have experience of messaging. Data Modelling: Have worked ...

Senior Full-Stack Cloud Native Developer (OTC Team), Charles River Development, Assistant Vice President

Hiring Organisation
State Street Bank
Location
London, United Kingdom
Salary
£ 80 K
within financial services.4–7 years developing solutions in Portfolio Management, Trading, Compliance, Post‐Trade, IBOR, or Wealth Management is strongly desired.Strong knowledge of objectoriented programming, relational databases, scripting languages, and modern software engineering paradigms.Ability to contribute to complex design specifications with minimal oversight.Demonstrated ability to work independently ...

Java Developer

Hiring Organisation
Matchtech Mobility
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£540 - £640 per day
Essential Skills & Experience Proven experience as a Java Developer, Backend Developer, or Full Stack Developer. Strong hands-on development experience with Java and object-oriented programming principles. Experience building applications using: Spring Boot Spring MVC RESTful APIs Microservices Strong understanding of relational databases and SQL. Experience working with ...

BXTI - Liquid Credit, Full Stack Software Engineer, Associate

Hiring Organisation
Blackstone Group
Location
London, United Kingdom
Salary
£ 80 K
preferably AWS.Experience with RESTful API design, development, and scalable microservice architecturesAbility to develop scalable, secure, and maintainable code, with a strong background in object-oriented programmingExcellent problem-solving skills and strong communication skillsSelf-starter with an entrepreneurial attitude, willing to teach and mentor others, and desire to work ...

Lead Software Engineer, C#/WPF & Java SS, Equities Derivatives Front Office Flow Technology

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
knowledge with other members of the team.Required qualifications, capabilities, and skillsFormal training or certification on software engineering concepts and advanced applied experience in JavaStrong OO design skills with good knowledge of object modelling and design patterns.Experience with development, deployment and maintenance of commercial service oriented application(s)Disciplined ...

Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£499 - £500/day
pipelines. What You Bring (Essential Skills) Core Experience: Proven track record as a Java Developer, Backend Engineer, or Full Stack Developer with strong Object-Oriented Programming (OOP) skills. Frameworks & Architecture: Deep hands-on experience with Spring Boot, Spring MVC, RESTful APIs , and Microservices . Database Mastery: Solid understanding ...

Software Engineer - Java

Hiring Organisation
Millennium Management
Location
London, United Kingdom
Salary
£ 100 K
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 algorithmsBachelor’s degree in Computer Science, Engineering, or a related technical field from a leading institution, or equivalent experiencePractical coding ...

QE AI Engineer (Python)

Hiring Organisation
NTT DATA
Location
London, United Kingdom
Salary
£ 80 K
C#Experience with web, API, and non-functional testing approachesExperience using CI/CD pipelines to integrate and run automated testsGood understanding of object-oriented programming principles and modern engineering practicesExperience working with Git-based source control and collaborative development workflowsStrong problem-solving and analytical skillsGood written and verbal ...

Senior Software Engineer

Hiring Organisation
Genius Sports
Location
London, United Kingdom
Salary
£ 80 K
with the principles of continuous experimentation and validation. What skills do you have? You will have expert level knowledge of at least one object-oriented programming language (C#, Java, JS, Kotlin, Python, PHP, Golang, C++) Flexibility to work on all areas of the service stack, front-end, back ...

Senior Applied Data Scientist

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
deploying AI models and solutions to production.Strong statistical analysis skills, with a foundation in probability, to support robust model development and interpretation.Proficiency in Object-Oriented programming in Python with expertise in key data science and machine learning libraries (e.g. TensorFlow, PyTorch and Scikit-Learn).Expertise in cloud technologies ...

Staff Software Engineer

Hiring Organisation
BP
Location
London, United Kingdom
Salary
£ 80 K
architecture and designPostgreSQL — query optimisation, indexing, schema design, and stored proceduresRelational data modelling and database designUnit testing, integration testing, and TDD (JUnit, Mockito)Object-oriented design and SOLID principlesCloud & InfrastructureAWS cloud services — EC2, ECS/EKS, RDS, S3, Lambda, IAMKubernetes and container orchestration (Docker, Helm)CI/ ...

Senior C# Developer- - SC Cleared

Hiring Organisation
Triad
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000/annum
C# Developer or similar software development role. Proficiency in the C# programming language and the .NET Framework, including .NET Core Strong understanding of object-oriented programming principles. Experience with software development methodologies such as Agile or Scrum. Familiarity with relational databases (e.g., SQL Server, MySQL, PostgreSQL ...

Lead Software Engineer

Hiring Organisation
KPMG
Location
London, United Kingdom
Salary
£ 80 K
solve document management, workflow automation, and knowledge management challenges.Proven Track Record: Experience leading and mentoring othersProgramming Skills: Have heavily used modern object-oriented languages such has C# or JavaEnterprise Expertise: Expertise in software design patterns, clean code, and clean architecture principles & Knowledge of how to build REST APIs ...

Senior Java Developer

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
Gherkin, PACT, and Test Containers.Working knowledge of event/message brokers such as Kafka and MQ.Advanced Scala programmingStrong proficiency in both functional and objectoriented programming paradigms, with the ability to apply the right approach to deliver robust, maintainable solutions.Deep practical expertise with Scala, including key frameworks ...

.NET Developer (Mid Level)

Hiring Organisation
Avanti
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £50,000 per annum
will ideally have: Commercial experience within a .NET development role Strong backend development capability Experience working with SQL databases Good understanding of object-oriented programming Strong problem-solving skills Excellent communication and collaboration skills A proactive and detail-oriented approach Candidates with experience across both legacy ...

AI Strategist, Generative AI Innovation Center

Hiring Organisation
AmazonWebServices
Location
London, United Kingdom
Salary
£ 80 K
data science, engineering, or other related field, or experience in consulting, design and implementation of serverless distributed solutions- Experience with one or more object-oriented programming languages (e.g., Java, C/C++, Python)- Experience integrating AWS cloud services with on-premise technologies (e.g., Microsoft, IBM, Oracle ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
Messaging: Apache Kafka, Apache Flink. APIs & Protocols: RESTful web services, gRPC, JSON, Protocol Buffers. Core Computer Science: Strong mastery of data structures, algorithms, object-oriented design, and design patterns. DevOps & Tooling: CI/CD pipelines (Jenkins, GitLab, or GitHub Actions), Docker, Git. Domain Expertise: Prior experience in Investment ...

Java Developer (Blockchain)

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
tools like JUnit, Cucumber, Gherkin, PACT, and Test Containers.Working knowledge of event/message brokers such as Kafka and MQ.Advanced JavaStrong experience in Object-Oriented Programming (OOP).Advanced knowledge of Java 17+ features and practical experience with Spring Boot.Skilled in developing RESTful services, including REST design principles, Swagger ...

Senior & Principal Java Camunda Enigneers

Hiring Organisation
Casci
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
where applicable Contribute to Cascis internal best-practice frameworks and automation accelerators Essential Skills and Experience Strong experience in Java software engineering and object-oriented design Hands-on experience implementing solutions using Camunda 7 or 8 (BPMN/DMN) Proven experience leading and mentoring teams of engineers ...

Senior AI/ML Engineer

Hiring Organisation
Argus Media group
Location
London, United Kingdom
Salary
£ 60 K
hands-on experience. An MSc or PhD is welcome but not essential.Essential Experience & SkillsExceptionally strong Python programming skills, with a deep grasp of object-oriented design, clean code, and core software engineering principles (e.g. SOLID, design patterns, modularity, testability).Strong backend/API engineering experience, ideally in Python ...

Senior Software Development Engineer in Test (SDET)

Hiring Organisation
Capco
Location
London, United Kingdom
Salary
£ 80 K
responsible use of approved AI tools and automation to improve collaboration and engineering outcomes.What We're Looking ForStrong knowledge of at least one object-oriented programming language, such as Java, Scala, or JavaScript.Experience designing and building test automation frameworks using tools such as Selenium, Cypress, Playwright, or equivalent ...

Lead Java Full-Stack AWS Software Engineer - Vice President

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
networking concepts and Unix/Linux environmentsExperience analyzing, troubleshooting, and supporting large-scale, cloud-native systemsPreferred Qualifications, Capabilities, and SkillsAdvanced knowledge of Java, object-oriented programming, and the JVM, especially in AWS environmentsExperience with infrastructure as code and modern monitoring/observability practicesExperience working in the financial ...