1 to 25 of 62 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/ ...

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 ...

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 ...

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 ...

Quant Developer OTC Pricing

Hiring Organisation
James Joseph Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
systems used in a live institutional trading environment REQUIRED - SKILLS/EXPERIENCE: Strong Java development experience, ideally 5+ years Deep understanding of object-oriented design, concurrency, and high-performance distributed systems Proficient in Python; Including use of libraries such as NumPy, SciPy and Pandas for quantitative analysis ...

Javascript Developer

Hiring Organisation
Venturi
Location
London Area, United Kingdom
environments , identify risks, and drive solutions forward. Technical Skills Strong hands-on experience building applications using React and TypeScript . Solid understanding of Object-Oriented Programming (OOP) and software design principles. Good understanding of computational complexity and performance considerations . Experience working across the full software development lifecycle ...

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
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 ...

Vice President, Fullstack Software Engineer (Java/React)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Java and related frameworks (e.g., Spring Boot, Hibernate). Some experience in React or similar, and modern JavaScript/TypeScript. Solid experience with objectoriented design and applying standard design patterns Experience designing, building, and deploying scalable microservices using API‐first principles with REST and/or gRPC. ...

Mid-Level Java Software Engineer

Hiring Organisation
Quant Capital
Location
Greater London, England, United Kingdom
/CD, logging/monitoring What they want: 2–5 years of experience building production systems (or equivalent ability) Strong Java fundamentals (OO design, APIs/services, concurrency basics, testing) Some UI development Comfortable with SQL/PostgreSQL Some Python experience (enough to manage and improve existing ETL/ingestion ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£100000 - £120000/annum
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 ...

Hedge Fund - Senior C++ Quant Developer - Equities - Linux - Python - Data/Algos/Low latency

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Front Office, financial services environment as a senior contributor 10+ years cumulative, professional experience Strong background in data structures, algorithms, and object-oriented programming in C++ Permanent role - Central London based - 5 days a week in the office By applying to this job you are sending us your ...

Solutions Engineer

Hiring Organisation
HireCapital
Location
City of London, London, United Kingdom
high-trust, high-skill environments What You Bring Hands-on experience building and running automated tests (integration, end-to-end) Containerization: Docker, Kubernetes Object-oriented programming fundamentals Linux-based operating systems Scripting: Bash/Shell, Python, or JavaScript Data querying: SQL, NoSQL, or equivalent Genuine interest in chaos ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
London Area, United Kingdom
operations, ensuring high availability and rapid incident resolution. Requirements Must Haves 4+ years of professional experience with Ruby on Rails. Strong understanding of object-oriented programming and Rails architecture Extensive experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. ...

.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 Enterprise Architect

Hiring Organisation
McCabe & Barton
Location
London Area, United Kingdom
application development and architecture principles, patterns, best practices. Professional experience with a variety of technologies – including database, messaging and at least one major OO language (C#, C++, Java) Proficiency in application development in both on-premise, cloud and hybrid models. Experience with DevSec Ops practices and tools. Leadership and Soft ...

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 ...

Software Engineer in Test

Hiring Organisation
Plan A Digital
Location
London Area, United Kingdom
ensure robustness Pair with developers to enhance testing infrastructure for continuous delivery Proactively identify areas for improvement in software quality Essential Experience: Strong Object-Oriented Programming in Java Java must be your primary language you have a proven background with Proven background as an SDET Component testing ...

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 . ...

Sports Python Developer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Required Experience Around 3+ years of commercial software engineering experience Must come from a sports trading domain Strong Python development skills with solid object-oriented programming fundamentals Experience building or maintaining data-driven applications or pipelines Exposure to client-server system architecture Experience working with tools such ...

Business Analyst - Client Support

Hiring Organisation
Orchestrade
Location
London, England, United Kingdom
Requirements: BS/MS degree in Financial Engineering, or equivalent. One to three years of professional experience in the financial industry. Experience in Object-Oriented Programming. C#/C/C++ is preferred, but knowledge of other languages will also be advantageous. Knowledge of application functionality and data ...

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. ...