1 to 25 of 358 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 ...

Software Engineer /Tech Lead – Web Platforms - Technology Consulting

Hiring Organisation
Business Integration Partners
Location
London, United Kingdom
Salary
£ 80 K
engineering using technologies such as JavaScript, TypeScript, React or Angular.Experience designing and integrating RESTful APIs and distributed systems.Strong knowledge of software architecture principles, object-oriented design, design patterns and microservices.Experience working with relational databases such as PostgreSQL, Oracle, SQL Server or MySQL.Experience delivering applications on at least ...

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 ...

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, 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 ...

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 ...

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, objectoriented programming principles, clean code practices, and distributed system design. Experience implementing API security using OAuth2, JWT, OpenID Connect, API Keys, and secure authentication ...

Senior Software Developer II - Full-Stack

Hiring Organisation
RELX Group
Location
London, United Kingdom
Salary
£ 80 K
application performance and 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, J2EE and Web Services.Strong understanding of REST APIs, Spring Boot, Micro Services ...

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 ...

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 ...

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

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 ...

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 ...

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 ...

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 object-oriented 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 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 ...

Senior Software Engineer (SDET, Python)

Location
Greater London, England, United Kingdom
frameworks, services, libraries, and automation platforms. Experience building and scaling automation solutions for large, complex systems. Deep understanding of software development fundamentals, including object-oriented design, clean code practices, software architecture, and testing strategies. Experience designing and operating CI/CD systems using tools such as Jenkins, GitHub ...

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 Software Engineer - Risk & FX

Hiring Organisation
Visa
Location
London, United Kingdom
Salary
£ 80 K
independent path to production Strong platform and product support The ability to make real changes with real business value. Our Tech Stack includes Object-oriented programming forms the bulk of our codebase, currently in Java, versions 11+, and ideally Spring boot framework Highly-scalable, highly-available, cloud-native ...

Senior Software Engineer

Hiring Organisation
LTM
Location
London, United Kingdom
Salary
£ 80 K
architecture are well documentedWork closely with partner technology teams and to collaborate effectivelyTechnical Skills RequiredVery deep understanding of NetNet Core and Solid understanding of OO principlesExperience in ASPNET Core Web API and RESTful API techniquesSolid understanding of and experience with multithreading and asynchronous programmingFamiliar with SQL and NoSql databasesHandson experience ...

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 ...