1 to 25 of 64 OO Jobs in London

Quantitative Developer

Hiring Organisation
Orchestrade
Location
City of London, London, United Kingdom
Computer Science or other STEM related field. 3+ years in capital markets or financial software Strong knowledge in equity derivatives Experience in object-oriented programming such as C#, Java, and C++. C# is a plus. Knowledge of SQL and databases preferred. Good knowledge of mathematics, finance, and financial ...

Golang Engineer Go AWS TypeScript

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
Computer Science fundamentals such as OOP, Data Structures, Deign Patterns, Algorithms You have commercial Golang development experience (likely to have a background with other OO languages such as Python, Java, C++ but you must be happy to use Golang going forward) You have a strong knowledge of AWS - they ...

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 ...

Lead Java Developer

Hiring Organisation
Russell Tobin
Location
City of London, London, United Kingdom
/multi-threaded systems Proven experience with RFQ workflows integrated into broader trading platforms (pricing, algo trading, STP) Deep knowledge of Core Java , object-oriented design, and low-latency design patterns Hands-on experience with: Performance profiling and monitoring Building fault-tolerant, high-throughput systems Linux-based environments ...

eFX Developer - Director - Investment Banking

Hiring Organisation
Nicoll Curtin Technology
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
shifts or on-call duties beyond regular working hours. Designing, implementing, and delivering complex globally distributed high availability Real Time trading systems. Key Skills: OO Language - C++/Java/Python/Rust/C# FX Financial Markets Low-Latency Market Data Multi-Threading No-SQL/SQL Unit Testing ...

.Net Developer

Hiring Organisation
Wave Talent
Location
City of London, London, United Kingdom
teams Required Skills & Experience Strong commercial experience with C# and .NET/.NET Core Experience building and consuming REST APIs Solid understanding of object-oriented design and software engineering principles Experience with SQL Server and relational databases Familiarity with unit testing frameworks (e.g. xUnit, NUnit, MSTest) Experience working ...

Lead Data Engineer with Hadoop exp

Hiring Organisation
Synechron
Location
London Area, United Kingdom
platforms. The ideal candidate will possess hands-on expertise in the following areas: Extensive enterprise experience with Hadoop, Spark , and Splunk. Proficiency in object-oriented and functional scripting, particularly in Python . Skilled in handling raw, structured, semi-structured, and unstructured data (SQL and NoSQL). Experience integrating ...

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 ...

Software Engineer

Hiring Organisation
StreetID
Location
Greater London, England, United Kingdom
ideally within financial services or a trading environment. Proven experience building or supporting risk platforms, pricing systems, or valuation engines. Strong knowledge of object-oriented programming, data structures, and design patterns. Familiarity with market risk, credit risk, or counterparty risk concepts. Experience with messaging systems (e.g., Solace, Kafka ...

Senior Software Engineer

Hiring Organisation
ReeVR
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
ORMs (e.g. SQLAlchemy, Alembic) Solid understanding of frontend fundamentals: HTML, CSS, JavaScript Strong grasp of software engineering principles: Git/version control Object-oriented programming Testing (unit & integration) Comfortable working in a fast-paced, evolving environment Nice to have Experience with TypeScript and React Exposure to frontend design ...

Senior Software Engineer

Hiring Organisation
Reevr Talent Ltd
Location
Paddington, London, Lancaster Gate, United Kingdom
Employment Type
Permanent
Salary
£70000 - £90000/annum
ORMs (e.g. SQLAlchemy, Alembic) Solid understanding of frontend fundamentals: HTML, CSS, JavaScript Strong grasp of software engineering principles: Git/version control Object-oriented programming Testing (unit & integration) Comfortable working in a fast-paced, evolving environment Nice to have Experience with TypeScript and React Exposure to frontend design ...

C# .NET Software Developer - with Blazor. Award-Winning SaaS. Remote

Hiring Organisation
RecruitmentRevolution.com
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 65,000 Annual
recent professional experience in C# .NET development. • Knowledge of database design and management (SQL Server). • Proven experience with Blazor • Strong understanding of object-oriented programming principles. • Experience with front-end technologies such as HTML, CSS, and JavaScript. • Familiarity with RESTful APIs and web services. • Excellent problem-solving ...

C# .NET Software Developer - with Blazor. Award-Winning SaaS. Remote / Hybrid

Hiring Organisation
RecruitmentRevolution.com
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £65,000 per annum
recent professional experience in C# .NET development.• Knowledge of database design and management (SQL Server).• Proven experience with Blazor• Strong understanding of object-oriented programming principles.• Experience with front-end technologies such as HTML, CSS, and JavaScript.• Familiarity with RESTful APIs and web services.• Excellent problem-solving ...

C# .NET Software Developer - with Blazor. Award-Winning SaaS. Remote

Hiring Organisation
RecruitmentRevolution.com
Location
London, Covent Garden, United Kingdom
Employment Type
Permanent
Salary
£45000 - £65000/annum depending on experience
recent professional experience in C# .NET development. • Knowledge of database design and management (SQL Server). • Proven experience with Blazor • Strong understanding of object-oriented programming principles. • Experience with front-end technologies such as HTML, CSS, and JavaScript. • Familiarity with RESTful APIs and web services. • Excellent problem-solving ...

Quant Developer

Hiring Organisation
OpenBet
Location
City of London, London, United Kingdom
Mathematics or a closely related quantitative field. 3+ years of working experience or a PhD in a quantitative field. Advanced programming skills: (a) object-oriented programming ( C# or Python ) and (b) databases ( SQL and NoSQL ). Experience with various modelling techniques (e.g. Probability Distributions, GLMs, Monte Carlo Simulations ...

Senior Software Engineer

Hiring Organisation
Ontik
Location
City of London, London, United Kingdom
proactive, ownership-oriented attitude with the ability to take initiative and drive projects forward Proficiency in full-stack development using any object oriented language (we use .NET) and any modern javascript framework (we use React) Experience working with databases (SQL and NoSQL), APIs, and web technologies. Experience ...

Senior Data Scientist

Hiring Organisation
Emporia Consulting Group Limited
Location
East London, London, United Kingdom
Employment Type
Contract
Contract Rate
£800 to £1000 per day
experience. Experience and skills required for the Data Scientist, Advanced SQL, LLM, RAG, Machine Learning, Python, Java Development experience in one or more object-oriented programming languages (e.g. Python, Java). Thorough understanding of the underlying mathematical foundations of statistics and machine learning. Can build scalable, reusable, impactful ...

Principal Engineer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600.0 - £640.0 per day + up to £640 pd (Inside IR35)
Experience with backlog refinement and preparing high-quality user stories In-depth knowledge of a fourth-generation programming language (4GL) Strong skills in object-oriented analysis and design (OOAD) Proven experience with C#, Java (Spring Boot, JPA/Hibernate), REST APIs, observability, monitoring, queue technologies, security, and relational ...

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 ...

Manager of Artificial Intelligence

Hiring Organisation
Fimador
Location
City of London, London, United Kingdom
without losing their passion for building. Ideally a degree in Computer Science, Engineering, or similar. 5+ years of software engineering experience using modern object-oriented languages (e.g., Java, C#, Python). Strong Python capability alongside at least one other major language. Practical experience building with Generative AI technologies ...

Junior Software Engineer

Hiring Organisation
Metfolio
Location
City of London, London, United Kingdom
synchronous behaviour of MERN Understanding of MVC design patterns Experience in front-end technologies, such as Java, Dart and potentially Swift Knowledge of object-oriented programming Strong ability to write custom APIs linking to front end interfaces, with a focus on mobile applications Understanding accessibility and security compliance ...

Quality Assurance Automation Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
have a commercial background in finance, payments, or high-stakes transactional systems. Code-First Mindset: You are proficient in C# and understand object-oriented principles, design patterns, and how to write maintainable test code. Naturally Curious: You aren't satisfied with a "pass" result—you want to understand ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
bottlenecks and inefficiencies, and redesigning processes to be machine-readable and automation-ready using methodologies. Python Development - Strong proficiency in Python programming including object-oriented design, asynchronous programming, error handling, and writing clean, maintainable code. Experience with key libraries including Pandas, NumPy for data manipulation, requests and APIs ...

.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 ...

Java Developer

Hiring Organisation
Claverton Consulting Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 65,000 Annual
most of the following: Extensive experience in Java. Modern web application development using Java and ideally, with commercial experience of Vaadin. Strong OO fundamentals. Designing and consuming web services, RESTful APIs. Desirable Understanding of Swift, payments industry and ISO 20022 messages. Experience of HPE NonStop Other programming languages (eg C++ ...