16 to 40 of 106 OOP Jobs in London

Experience: Proven experience as a Solution Architect, Technical Architect, or Senior Developer/Tech Lead across .NET (C#) and Java platforms. Strong understanding of software design principles, object-oriented programming, and distributed systems. Hands-on experience with cloud technologies such as Azure, AWS, or GCP. Proficiency in integration design, including RESTful APIs, microservices, and message-based systems. More ❯

Design and backtest Alpha Signals for market execution • Enhance trade execution efficiency and system performance • Implement robust risk management and stress-testing tools 🎯 What You Bring • 5+ years Java (OOP, low-latency systems) • 4+ years FX or Crypto trading experience • Python (NumPy, Pandas, SciPy) • SQL or time-series DBs • Linux & distributed systems expertise • Strong communication & market intuition ✨ Bonus Skills • KDB+ More ❯

Design and backtest Alpha Signals for market execution • Enhance trade execution efficiency and system performance • Implement robust risk management and stress-testing tools 🎯 What You Bring • 5+ years Java (OOP, low-latency systems) • 4+ years FX or Crypto trading experience • Python (NumPy, Pandas, SciPy) • SQL or time-series DBs • Linux & distributed systems expertise • Strong communication & market intuition ✨ Bonus Skills • KDB+ More ❯

work in a collaborative, fast-paced environment. Excellent communication skills with the ability to work closely with cross-functional teams. Good-to-have Qualifications: Experience with other object oriented programming languages such as Java, C#, or C++. Experience with quantitative development in the financial industry and familiarity with pricing model, risk model, analytics, Greeks, value at risk More ❯

or C++ background if happy to use C# going forward) You have a strong knowledge of SQL databases You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms You're entrepreneurial with good business acumen, keen to take ownership and lead projects You're collaborative, enjoy problem solving and sharing ideas What's More ❯

systems Skills: Proficient in Rust (or low-latency C++, looking for Rust exposure) Experience with latency-sensitive system development, multi-threaded coding, and scalable distributed systems) Familiarity with concurrency, OOP, database systems, and basic SQL Knowledge of Linux/Unix, AWS, Git, Docker, EVM, and blockchain fundamentals Apply now More ❯

environment issues across multiple teams Provide occasional out-of-hours or weekend support when needed Skills and Experience: Strong C#/.NET development background Good understanding of object-oriented programming Experience with SQL Server or Oracle databases Familiarity with IIS and Windows application development Excellent communication and problem-solving skills Desirable: Exposure to DevOps, CI/CD More ❯

environment issues across multiple teams Provide occasional out-of-hours or weekend support when needed Skills and Experience: Strong C#/.NET development background Good understanding of object-oriented programming Experience with SQL Server or Oracle databases Familiarity with IIS and Windows application development Excellent communication and problem-solving skills Desirable: Exposure to DevOps, CI/CD More ❯

experience in Python (FastAPI desirable). Frontend experience with technologies such as TypeScript and React. 3+ years of experience in developing complex software solutions. Solid understanding of object-oriented programming and test-driven development (TDD, BDD). Familiarity with agile software engineering practices. Passion for continual learning and experimentation. Desirable Skills: Experience with C# Experience with AWS More ❯

in Java software development, 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, or RabbitMQ) and distributed architecture. More ❯

planning o Code review and version control o Problem-solving and debugging o Collaboration in cross-functional teams Technical Skills: o Strong proficiency in Java EE and object-oriented programming principles o Comprehensive understanding of object-oriented design, data structures, and problem-solving o Experience developing mobile applications using Android, Angular, Ionic, React Native, or More ❯

functional requirements. Support CI/CD integration and continuous improvement of testing processes. Required Skills & Experience 5+ years' experience as an SDET or Automation Engineer. Strong knowledge of Java (OOP, SOLID principles) and ability to build coded test frameworks. Experience with RESTAssured and API Testing . Familiarity with SQL/RDBMS and Integration Testing . Hands-on with Git/ More ❯

firm have a very specific set of requirements and will not look outside of this. They are; Have studied Computer Science or Maths at a Top University Have strong OOP – language is not important; Python, Java, C C#. Strong problem-solving capability Some SQL experience Have had internship or placement experience (non-negotiable) Salary range is £45K-£55K + bonus More ❯

architecture of distributed, high-throughput systems. Conduct research to enhance optimisation frameworks and algorithm performance. Required Experience Strong foundation in mathematics, optimisation, or operations research. Demonstrated Python engineering skills (OOP, algorithms, data structures). Ability to transform theoretical models into practical solutions. Strong communication and teamwork skills. Preferred Experience MSc/PhD in a quantitative discipline. Experience with optimisation frameworks More ❯

architecture of distributed, high-throughput systems. Conduct research to enhance optimisation frameworks and algorithm performance. Required Experience Strong foundation in mathematics, optimisation, or operations research. Demonstrated Python engineering skills (OOP, algorithms, data structures). Ability to transform theoretical models into practical solutions. Strong communication and teamwork skills. Preferred Experience MSc/PhD in a quantitative discipline. Experience with optimisation frameworks More ❯

development You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript/React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it More ❯

in this role as a Senior Software Engineer C++, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work in OOP and work with other members of the Development team to produce code of high-quality standards. Ideally, you should have worked in critical systems development in the past. Responsibilities and More ❯

in this role as a Senior Software Engineer C++, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work in OOP and work with other members of the Development team to produce code of high-quality standards. Ideally, you should have worked in critical systems development in the past. Responsibilities and More ❯

continuous improvements . What Were Looking For SDET with experience as a Performance Tester , ideally in a consultancy or client-facing environment. Proficiency in at least one object-oriented programming language (e.g., Java, Python, C#, or JavaScript/TypeScript) for writing clean, maintainable test code and frameworks. Strong knowledge of performance testing methodologies, tools, and scripting .But More ❯

to understand real-world requirements and translate them into elegant technical solutions. What We’re Looking For Solid understanding of Java and core computer science principles (data structures, algorithms, OOP). Strong problem-solving skills and attention to detail. Eagerness to learn about trading systems, low-latency development, and financial markets. Experience with data analytics tools or frameworks (Python, SQL More ❯

to understand real-world requirements and translate them into elegant technical solutions. What We’re Looking For Solid understanding of Java and core computer science principles (data structures, algorithms, OOP). Strong problem-solving skills and attention to detail. Eagerness to learn about trading systems, low-latency development, and financial markets. Experience with data analytics tools or frameworks (Python, SQL More ❯

heavy environment. What you’ll need Strong skills in Java , TypeScript , ReactJS , MongoDB , and PostgreSQL . Exposure to Kubernetes , Docker , and Jenkins (CI/CD). Deep understanding of OOP , design patterns , and distributed systems . Experience designing APIs and microservices . Knowledge of messaging systems and web technologies. Finance or banking sector experience is a strong plus. If you More ❯

Strong working knowledge of R - Proven experience in refactoring "research-level" code into production-ready software - Proven experience of collaborating effectively in cross-functional team environment - Software skills include: OOP, test-driven development, unit testing (pytest), Git, CI/CD - Clear technical writing/documenting Desirable: - Familiarity with cloud environments (ideally AWS) - Familiarity with containerisation - Familiarity of workflow management systems More ❯

have strong SQL skills (PostgreSQL, SQL Server and ideally Databricks, or happy to learn it) You have a thorough knowledge of Computer Science fundamentals including Data Structures, Design Patterns, OOP You're collaborative and pragmatic with great communication skills Apply now to find out more about this Backend Software Engineer/Developer (Python FastAPI Data) opportunity. More ❯

have strong SQL skills (PostgreSQL, SQL Server and ideally Databricks, or happy to learn it) You have a thorough knowledge of Computer Science fundamentals including Data Structures, Design Patterns, OOP You're collaborative and pragmatic with great communication skills Apply now to find out more about this Backend Software Engineer/Developer (Python FastAPI Data) opportunity. More ❯