151 to 175 of 409 OO Jobs in London

Lead Software Engineering - C++

Location
Greater London, England, United Kingdom
with C++ software for deterministic performance. Required Qualifications, Capabilities, and Skills: Proficiency in modern C++ on Unix/Linux with strong multithreading and object-oriented design fundamentals. Hands-on experience in system design, application development, testing, and operational stability in production environments. Scripting skills (Python, Perl, Shell ...

Applied AI ML Data Scientist, Vice President - Payments

Location
Greater London, England, United Kingdom
production at scale, including monitoring, drift and performance management, reliability, incident management, and continuous improvement Strong Python software engineering skills, including modular object-oriented design, testing, performance tuning, and debugging Working knowledge of MLOps and LLMOps and distributed systems, including training and serving patterns, batch versus real-time ...

Senior Scala Engineer (SolstiCE) – Equity Derivatives Tech – VP

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 100 K
technologies.Hands-on professional software development experience at a senior level.Proven experience of defining technical architectures and leading complex projects through to delivery.Proficiency in object-oriented and functional programming.Rigorous application of clean code and TDD principles.Passion and interest in shaping the way the system should be evolving to stay ...

Senior Software Engineer London London

Location
Greater London, England, United Kingdom
experience developing performant modern C++, or high willingness to learn C++ which is our primary programming language for all development Strong procedural and object-oriented programming experience that employs clean code principles and good OOP design patterns/principles Experience developing in Docker and containerized development environments ...

Senior Scala Engineer (SolstiCE) - Equity Derivatives Tech - VP

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
professional software development experience at a senior level. Proven experience of defining technical architectures and leading complex projects through to delivery. Proficiency in object-oriented and functional programming. Rigorous application of clean code and TDD principles. Passion and interest in shaping the way the system should be evolving ...

Leading Engineering Developer - Enterprise AI Products - Senior Vice President

Location
Greater London, England, United Kingdom
tools. Spot opportunities to deliver value and proactively bring them to the team. Engineering & Delivery Design, develop, and implement robust solutions using object-oriented programming and sound technical design principles. Write production-quality code in Python or Java — both languages are actively used in this role. Working with ...

Senior Scala Engineer (SolstiCE) – Equity Derivatives Tech – VP

Location
Greater London, England, United Kingdom
professional software development experience at a senior level.* Proven experience of defining technical architectures and leading complex projects through to delivery.* Proficiency in object-oriented and functional programming.* Rigorous application of clean code and TDD principles.* Passion and interest in shaping the way the system should be evolving ...

Software Development Engineer II

Hiring Organisation
Capital Group
Location
London, United Kingdom
Salary
£ 100 K
relevant work experience. Experience in software development, including experience with at least one modern language such as Python, Java, C++, or C# including object-oriented design with an understanding of advanced design patterns. Experience in cloud-first design, preferably AWS (Serverless infrastructure, dynamic autoscaling, container orchestration, etc.). ...

Senior Software Development Engineer, Data Center Builder Tools

Hiring Organisation
Amazon
Location
London, United Kingdom
Salary
£ 80 K
mentor, tech lead or leading an engineering team- Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design- Experience in professional, non-internship software development- Experience leading the architecture and design (architecture, design patterns, reliability and scaling ...

Senior Rates eTrading Development Lead

Hiring Organisation
Bank of America
Location
Bromley, Kent, United Kingdom
Salary
£ 80 K
system design principles - message-driven, event based architecture, TCP, UDP, Multicast - low latency performance and scaling - multithreading - service oriented interface driven architecture - object oriented designSkills that will help:Experience working in Fixed Income eTrading technology domain specializing in the D2C & D2D electronic execution, algo, pricing systems ...

Applied AI ML Data Scientist, Vice President - Payments

Location
Greater London, England, United Kingdom
production at scale, including monitoring, drift and performance management, reliability, incident management, and continuous improvement Strong Python software engineering skills, including modular objectoriented design, testing, performance tuning, and debugging Working knowledge of MLOps and LLMOps and distributed systems, including training and serving patterns, batch versus real‐time ...

C++/Python Quantitative Developer - Cross Asset XVA and Capital Analytics (Vice President)

Location
Greater London, England, United Kingdom
leveraging a wide variety of mathematical and computer science methods and tools including hardware acceleration, advanced calculus, C++ including STL, C#, .NET, Java, object oriented software design, Python, kdb, Structured Query Language (SQL), mathematical finance/programming and statistics and probability Develop pricing models using numerical techniques ...

C++/Python Quantitative Developer - Cross Asset XVA and Capital Analytics (Vice President)

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
> £ 150 K
leveraging a wide variety of mathematical and computer science methods and tools including hardware acceleration, advanced calculus, C++ including STL, C#, .NET, Java, object oriented software design, Python, kdb, Structured Query Language (SQL), mathematical finance/programming and statistics and probabilityDevelop pricing models using numerical techniques for valuation ...

Senior AI/ML Consultant, AWS Professional Services

Location
City of Westminster, England, United Kingdom
database (eg. SQL, NoSQL, Hadoop, Spark, Kafka, Kinesis) Experience in consulting, design and implementation of serverless distributed solutions Experience in software development with object oriented language Experience in cloud based solution (AWS or equivalent), system, network and operating system Experience in external or internal customer facing, complex ...

Senior AI/ML Consultant, AWS Professional Services

Location
Greater London, England, United Kingdom
database (eg. SQL, NoSQL, Hadoop, Spark, Kafka, Kinesis) Experience in consulting, design and implementation of serverless distributed solutions Experience in software development with object oriented language Experience in cloud based solution (AWS or equivalent), system, network and operating system Experience in external or internal customer facing, complex ...

Java Developer

Hiring Organisation
Hastings Direct
Location
London, United Kingdom
Salary
£ 80 K
Developer in an agile team, supporting and developing enterprise level applications. Experience of Java/JVM/Spring based languages Object oriented analysis and design Source Management software such as GitHub SOAP, REST, JSON, XMLJSON & XML; HTML; CSS and JavaScript Knowledge of a Test driven approach including exposure ...

Contract Senior Java Developer – Data/Marketmaking

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
PostgreSQL + Git, CI/CD, logging/monitoringWhat they want:10+ years of experience building production systems (or equivalent ability)Strong Java fundamentals (OO design, APIs/services, concurrency basics, testing)Some UI developmentComfortable with SQL/PostgreSQLSome Python experience (enough to manage and improve existing ETL/ingestion ...

Junior ASP.NET MVC Developer – Fintech Javascript

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 60 K
Developers must have: (Below also shows tech stack)• Proven experience in the development of web applications. • ASP.NET MVC • C# • HTML5, CSS • Databases – MsSQL, MariaDB • OO Design Patterns again ideallyThis is a unique opportunity for someone to expand further into web technology. You should be driven and interested to gain some ...

Junior Java Software Engineer – Data Engineering

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 60 K
+ Git, CI/CD, logging/monitoringWhat 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 developmentComfortable with SQL/PostgreSQLSome Python experience (enough to manage and improve existing ETL/ingestion ...

Professional Services Consultant

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
Must have:§3 – 5 years commercial experience §Experience of Application support or Implementation§A technical, mathematic or scientific degree§SQL §Ideally Ability to read OO code§Ideally C++, C#, Java or XML§Windows ServerThis role suits a consultant with strong analytical and problem solving skills, experience with Window Server technologies ...

Senior Software Developer – Algo trading

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
future this is an opportunity to experience trading infrastructure in a small business.My client is based in LondonC# Server Side, Multiuthreading, C++. , OO Development Developer C# C++ SQL SQL 2008 Quant Trader Bank C# winforms ...

Lead Software Engineer (UI) â Digital Markets Execution Technology (DMET), Execute

Location
Greater London, England, United Kingdom
delivering real‐time or data‐intensive user experiences Demonstrated technical leadership in setting standards, leading designs, and mentoring teams Solid software engineering fundamentals, including OO/design patterns, debugging, and documentation Familiarity with agentic development approaches across the software development lifecycle Strong communication skills and ability to work effectively ...

Lead Software Engineer (UI) — Digital Markets Execution Technology (DMET), Execute

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
pipelinesExperience delivering real-time or data-intensive user experiencesDemonstrated technical leadership in setting standards, leading designs, and mentoring teamsSolid software engineering fundamentals, including OO/design patterns, debugging, and documentationFamiliarity with agentic development approaches across the software development lifecycleStrong communication skills and ability to work effectively in global, cross-functional ...

Senior Java Software Engineer Inside IR35

Hiring Organisation
Interact Consulting Limited
Location
West London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
380-400 a day
discussions, champion engineering best practices, mentor junior developers and contribute throughout the full software development lifecycle. You must have - Strong Java development experience. Object-oriented programming expertise. Scripting with Python, Bash or Ruby. Strong experience with TDD/BDD and automated testing. Excellent communication and collaboration skills. Proactive ...

Software Engineer

Location
Greater London, England, United Kingdom
production-quality code. Hands-on experience in Back-End Web Development, building APIs and working with databases and cloud infrastructure. Solid understanding of Object-Oriented Programming (OOP) and modern software design practices. Experience with at least one major programming language commonly used for backend services (e.g., Python ...