1 to 25 of 60 OO Jobs in London

Senior Java full stack developer / Tech Lead

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£70,000 - £80,000 per annum
design and integration. Familiarity with databases such as MySQL, PostgreSQL, or MongoDB. Experience with version control systems like Git. Strong understanding of object-oriented programming and design patterns. Knowledge of containerization tools (Docker) and cloud platforms (AWS/Azure/GCP) is a plus. Experience with CI/ ...

Managing Consultant - Endur Technical

Hiring Organisation
capSpire
Location
City of London, London, United Kingdom
throughout the project lifecycle. Lead the technical implementation of Endur solutions, including enhancements, system configuration, data migration and version upgrades. Design and architect object-oriented Endur-based solutions that meet client needs and adhere to industry standards for scalability, robustness, maintainability, and integration with other components and systems ...

Dynamics 365 Development Manager

Hiring Organisation
HirexHire
Location
City of London, London, United Kingdom
mentor engineers. WHAT YOU WILL NEED 8+ years of software development experience, including 3+ years leading or managing engineering teams. Strong background in object-oriented programming using languages such as C#, Java, Python, or similar. Experience building Microsoft-based applications across front-end, back-end, and services layers. ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
core stack includes: The Engine: Expert-level C# and .NET Core mastery. Architecture: Deep understanding of SOA (Service Oriented Architecture) and complex Object-Oriented design patterns. System Dynamics: Specialized knowledge of concurrency, asynchrony, and parallelism —essential for real-time transactional processing. Data & Web: High proficiency ...

Backend Developer

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £552 per day
Proven experience with Spring Framework (Spring Boot, Spring MVC, Spring Core) Hands-on experience building backend services, APIs, and microservices Solid understanding of object-oriented design, design patterns, and clean code principles Experience working within Agile/Scrum environments Strong problem-solving and debugging skills Ability to work ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £80,000 per annum
.NET Developer applicants should be experienced in: .NET, .NET Core, C# and Azure SQL. You should have a strong grasp of object orientated (OO) development principles. Our client can provide you with industry recognized training in: .NET 10.0, ASP.NET Core, C# 14, .NET MAUI, ML.NET, Azure AI, GitHub Copilot ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
encompasses: .NET, .NET Core, C# and Azure SQL. We are keen to hear from .NET Developer candidates with a strong understanding object orientated (OO) development and the full software development life cycle. This is a rare opportunity to join a truly exciting global brand. Our client offers over ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £100,000 per annum
.NET Developer applicants should be experienced in: .NET, .NET Core, C# and Azure SQL. You should have a strong grasp of object orientated (OO) development principles. Our client can provide you with industry recognized training in: .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET ...

Senior Software Developer

Hiring Organisation
Spectrum It Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
latest .NET platform 5+ years of professional software development experience Solid experience with SQL Server, Oracle, or equivalent relational databases Strong understanding of object-oriented design principles and software architecture Experience building production-grade, scalable systems Fluency in English with excellent written and verbal communication skills High attention ...

Quality Assurance Engineer

Hiring Organisation
Harnham
Location
London Area, United Kingdom
adoption of test automation across the engineering team. Skills & Experience Commercial experience in QA automation with Java or Kotlin . Strong understanding of object-oriented programming principles. Experience testing APIs using tools such as RestAssured, Feign, Swagger, or Postman. UI automation experience with Selenium, Selenide, or Playwright . ...

Senior Java Developer - Electronic Trading

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Contract
time trading platforms Strong understanding of Fixed Income or FX trading workflows Experience with RFQ lifecycles within larger trading ecosystems Solid grasp of: Object-Oriented Design Domain-Driven Design (DDD) Test-Driven Development (TDD) Linux systems experience Networking fundamentals: TCP, UDP, Ethernet, HTTP Hands-on experience with: Performance ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
projects which will be critical to the future success of the business. .NET Developer candidates should have a sound understanding of object orientated (OO) development and a skill that that includes: .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI and MongoDB. This ...

Junior .NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£25,000 - £35,000 per annum
which will be critical to the future success of the business. Junior .NET Developer candidates should have a sound understanding of object orientated (OO) development and a skill that that includes some of the following (full training will be provided to fill any gaps in your skill set): .NET ...

Software Development Engineer In Test

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Permanent
years of hands-on software development experience, including large-scale backend systems or platform engineering. Expert in Python with a strong understanding of object-oriented programming, testing frameworks, and automation libraries. Experience building or validating platform infrastructure, with hands-on knowledge o f CI/CD systems, GitHub ...

C# Developer - Top Market Maker - London

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
.NET development Bachelor’s degree (or higher) in Computer Science or a closely related technical field Strong understanding of software engineering fundamentals and object-oriented design Experience building server-side or distributed systems in a production environment Interest in financial markets, trading systems, or quantitative environments Strong problem ...

Senior C# .NET Developer | High-Volume Data | Kafka | Energy Trading | Up to £95,000 + Bonus | Hybrid, London

Hiring Organisation
VirtueTech Recruitment Group
Location
London Area, United Kingdom
distributed systems, concurrency, or multithreading Experience working with relational databases (SQL Server, Postgres, etc.) Exposure to Azure cloud environments Strong understanding of object-oriented design and modern engineering practices Confident communicator comfortable working across technical and business teams Desirable Experience Kafka or other event-streaming technologies Large-scale ...

Technical Business Analyst

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
communication skills (customer-facing role) Ability to work effectively with remote, international teams Positive attitude and growth mindset Demonstrated knowledge and experience of Object-Oriented Programming is essential, preferably in C# or similar Bonus Points: Experience with Interest Rates, Fixed Income, FX, or Accounting Why You'll Love ...

Junior AI Developer

Hiring Organisation
ITOL Recruit
Location
East London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
tools like Jupyter Notebooks and VS Code to develop AI systems. Step 4 – Python Programming Master Python, covering everything from the basics to object-oriented programming (OOP). Step 5 – Python Streamlit Project Apply your Python skills by building a car price prediction app using Python and Streamlit. ...

Junior AI Developer

Hiring Organisation
ITOL Recruit
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
tools like Jupyter Notebooks and VS Code to develop AI systems. Step 4 – Python Programming Master Python, covering everything from the basics to object-oriented programming (OOP). Step 5 – Python Streamlit Project Apply your Python skills by building a car price prediction app using Python and Streamlit. ...

Junior AI Developer

Hiring Organisation
ITOL Recruit
Location
North West London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
tools like Jupyter Notebooks and VS Code to develop AI systems. Step 4 – Python Programming Master Python, covering everything from the basics to object-oriented programming (OOP). Step 5 – Python Streamlit Project Apply your Python skills by building a car price prediction app using Python and Streamlit. ...

Junior AI Developer

Hiring Organisation
ITOL Recruit
Location
Uxbridge, Middlesex, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £45,000 per annum
tools like Jupyter Notebooks and VS Code to develop AI systems. Step 4 – Python Programming Master Python, covering everything from the basics to object-oriented programming (OOP). Step 5 – Python Streamlit Project Apply your Python skills by building a car price prediction app using Python and Streamlit. ...

Senior Software Engineer

Hiring Organisation
intro
Location
London Area, United Kingdom
Software Engineer to take a key role in building their complex backend systems. The ideal candidate will have a strong background in Object Oriented Programming with at least 1 year commercially developing in Golang, and designing/implementing scalable, high performance services. The role will involve working closely ...

C# Developer - Front Office Engineering | Hedge Fund - London

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
.NET are central to the team’s core systems Python is widely used across quant and data groups Open to candidates from other OO backgrounds (C++, Java, Go) with strong fundamentals Exposure to high‐performance, low‐latency, or business‐critical systems is valuable Financial markets experience is not essential ...

Front Office Quant/Developer

Hiring Organisation
Campion Pickworth
Location
London Area, United Kingdom
Contribute to the continuous improvement of tools used for risk monitoring and pricing Required Skills & Experience • Strong programming skills in Java or another object-oriented language • Solid understanding of financial markets and products • Previous experience within a banking environment is required • Excellent communication skills with the ability ...

Senior Software Engineer

Hiring Organisation
Expedia Group
Location
London Area, United Kingdom
similar APIs, data models, and integration patterns using industry-standard languages, frameworks, and tooling. Experience applying sound software engineering practices such as object-oriented or functional design, automated testing, code review, source control, and continuous integration/continuous delivery for production systems. Hands-on experience supporting services ...