1 to 25 of 298 OO Jobs in London

Python/React Developer

Hiring Organisation
Mphasis
Location
London Area, United Kingdom
Troubleshoot and resolve production issues. Required Skills Backend Strong experience with Python Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5, CSS3 Redux, React Hooks Responsive UI development Databases ...

FullStack Developer

Hiring Organisation
DNS Info Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
Troubleshoot and resolve production issues. Required Skills Backend Strong experience with Python Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5, CSS3 Redux, React Hooks Responsive UI development Databases ...

Systems Developer

Hiring Organisation
Massenhove Recruitment Limited
Location
London, 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, UK
Employment Type
Full-time
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 ...

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

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
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 ...

Lead Software Engineer - (Core Java with C#/WPF skills), Equities Derivatives Front Office Flow Technology

Location
Greater London, England, United Kingdom
members of the team. Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and advanced applied experience in Java Strong OO design skills with good knowledge of object modelling and design patterns. Experience with development, deployment and maintenance of commercial service oriented application ...

Lead Software Engineer - (Core Java), Equities Derivatives Front Office Flow Technology

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
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 ...

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

Location
Greater London, England, United Kingdom
Experience with RESTful API design, development, and scalable microservice architectures* Ability to develop scalable, secure, and maintainable code, with a strong background in object-oriented programming* Excellent problem-solving skills and strong communication skills* Self-starter with an entrepreneurial attitude, willing to teach and mentor others, and desire ...

Senior Platform and Services Software Engineer

Location
Greater London, England, United Kingdom
related technical discipline, and 3+ years of experience as a software engineer within a commercial environment. Proficiency in at least one modern objectoriented programming language (preferably Java) and willingness to learn new technologies. Proven experience developing microservices and deploying them on major cloud providers (AWS, Azure ...

QE AI Engineer (Python)

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
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 Salesforce Developer

Location
Greater London, England, United Kingdom
platform, ideally within a consultancy or fast‐paced enterprise environment. Programming Core: Deep expertise in Apex and JavaScript (ES6+), with strong roots in ObjectOriented Programming (such as Python, Java or C#) an advantage. Front‐End & UI: Extensive hands‐on experience building modern UI components with Lightning ...

Senior Software Engineer (Back End)

Location
Greater London, England, United Kingdom
with traders, quants, and other business stakeholders.Desired* Domain experience in Credit or Fixed Income.* Expertise in modern .NET technologies and C# (Java or similar OO languages considered).* Experience implementing observability (metrics, tracing, logging) for distributed systems.* Experience with CI/CD pipelines, containerisation (Docker), and orchestration (Kubernetes/ ...

Senior Software Developer

Hiring Organisation
Spectrum It Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
practices Essential Skills & Experience 5+ years' professional software development experience Strong commercial experience developing applications using C# and modern .NET Excellent understanding of object-oriented programming, software design principles and architecture Proven experience designing and developing production-grade, scalable software systems Strong experience working with SQL Server, Oracle ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £150,000 per annum
practices Essential Skills & Experience 5+ years' professional software development experience Strong commercial experience developing applications using C# and modern .NET Excellent understanding of object-oriented programming, software design principles and architecture Proven experience designing and developing production-grade, scalable software systems Strong experience working with SQL Server, Oracle ...

Senior Software Development Engineer in Test (SDET)

Hiring Organisation
Capco
Location
London, UK
Employment Type
Full-time
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 technologies. ...

Lead Software Developer

Location
Greater London, England, United Kingdom
full-stack software development principles and modern engineering practices. Experience designing and implementing RESTful APIs and event-driven architectures. Strong knowledge of object-oriented and functional programming concepts. Experience with CI/CD tools, containerization technologies, frontend frameworks such as React, and advanced Java frameworks including Spring ...

Senior Applied Data Scientist

Location
Greater London, England, United Kingdom
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 ...

Lead AI Software Engineer - TRP Labs London

Location
Greater London, England, United Kingdom
Computer Science or a related technical field, or equivalent practical experience. 8+ years of progressive software engineering experience developing applications in objectoriented languages such as Java, Python, or JavaScript, including experience leading technical delivery across teams or major initiatives. Extensive hands‐on experience architecting and delivering cloud ...

Senior Java Developer

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
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 ...

Senior Software Engineer (Back End)

Hiring Organisation
Liquidnet
Location
London, UK
Employment Type
Full-time
traders, quants, and other business stakeholders. Desired Domain experience in Credit or Fixed Income. Expertise in modern .NET technologies and C# (Java or similar OO languages considered). Strong relational database design and optimisation skills (MSSQL, MySQL). Deep understanding of low‐latency engineering, concurrency, multithreading, and performance optimisation. Experience ...

Senior Software Full Stack Developer - FTC [UK]

Hiring Organisation
Spyrosoft Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£70,000
Lambda, SQS/SNS and EventBridge, would be a strong advantage. Key Skills and Responsibilities Essential Skills: You will have: Expertise in object-oriented programming languages (Java, C#) Expertise in scripting languages: Bash, Python or Ruby Test-driven development practices (TDD, BDD, etc.) Excellent communicator and ability ...

Senior Software Development Engineer

Hiring Organisation
Beacon
Location
London, UK
Employment Type
Full-time
Rust would be a strong plusFamiliarity with C++ is a plus. Experience in Financial domain is a plus. Strong command of a typed, object-oriented programming language. Deep knowledge of software methodologies, tools, and common architectural patterns. Passion for working in a software-as-a-service environment. Strong ...

Java Developer (Blockchain)

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
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 ...

Senior AI/ML Engineer

Hiring Organisation
Argus Media group
Location
London, UK
Employment Type
Full-time
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 (e.g. ...