51 to 75 of 141 OO Jobs in London

techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with ION platform Expertise in object-oriented design patterns and SOLID principles Experience with functional programming concepts. Proven track record in Agile development environments Excellent problem-solving and analytical skills Experience with Spring Framework and More ❯

ReactJS, MongoDB, PostgreSQL. Experience using Kubernetes, Docker, and Jenkins, for containerisation and CI/CD is a plus. Knowledge of scalable distributed systems with a deep understanding of object-oriented design and design patterns. Knowledge of designing APIs and microservices. Experience working on web technologies. Deep understanding of messaging systems. What you get out of it An exciting More ❯

JavaScript. Strong understanding of MySQL , Eloquent models , and RESTful APIs . Experience integrating third-party APIs and webhooks. Familiarity with Git and collaborative code management. Strong understanding of object-oriented programming principles . Ability to thrive in a fast-paced environment and continuously learn new technologies. Nice to Have Experience with Alpine.js , Livewire , and vanilla JavaScript. Knowledge of More ❯

JavaScript. Strong understanding of MySQL , Eloquent models , and RESTful APIs . Experience integrating third-party APIs and webhooks. Familiarity with Git and collaborative code management. Strong understanding of object-oriented programming principles . Ability to thrive in a fast-paced environment and continuously learn new technologies. Nice to Have Experience with Alpine.js , Livewire , and vanilla JavaScript. Knowledge of More ❯

Developer, one must possess a mix of technical and soft skills: Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE. Strong understanding of Object-Oriented Programming (OOP) principles and design patterns. Familiarity with RESTful APIs , JDBC , and MVC architecture . Experience with build tools like Maven or Gradle and version control systems like More ❯

Developer, one must possess a mix of technical and soft skills: Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE. Strong understanding of Object-Oriented Programming (OOP) principles and design patterns. Familiarity with RESTful APIs , JDBC , and MVC architecture . Experience with build tools like Maven or Gradle and version control systems like More ❯

Engineering, or a similar field 5+ years of hands-on experience developing Java applications in a financial services environment (Java 21) Excellent knowledge in algorithms and data structures, object-oriented design, and microservices architecture (This will be tested) Proven record of complex software delivery in the Interest Rates domain Excellent Java 21, Spring Boot, strong practical experience with More ❯

/third-line support on complex data issues. What You’ll Need 6+ years of professional software engineering experience. Strong programming background in Python or Go, plus another object-oriented language. Proficiency in SQL (both transactional and analytical use cases). Experience working with data lakes, ETL frameworks, and orchestration tools such as Airflow. Familiarity with streaming systems More ❯

Engineering, or a similar field 5+ years of hands-on experience developing Java applications in a financial services environment (Java 21) Excellent knowledge in algorithms and data structures, object-oriented design, and microservices architecture (This will be tested) Proven record of complex software delivery in the Interest Rates domain Excellent Java 21, Spring Boot, strong practical experience with More ❯

/third-line support on complex data issues. What You’ll Need 6+ years of professional software engineering experience. Strong programming background in Python or Go, plus another object-oriented language. Proficiency in SQL (both transactional and analytical use cases). Experience working with data lakes, ETL frameworks, and orchestration tools such as Airflow. Familiarity with streaming systems More ❯

CI/CD methodologies to ensure fast, reliable, and secure delivery of software What We're Looking For Proven experience developing Java software with a strong understanding of object-oriented principles and design patterns Hands-on experience delivering microservices and working within distributed system architectures Knowledge of Agile delivery methods , including CI/CD pipelines and test automation More ❯

and resolve production incidents quickly and effectively. Understand, respond to, and address customer needs and issues with empathy and timeliness. Required Skills: Proficiency in Python or another typed, object-oriented programming language Proficiency in Javascript and React would be highly beneficial Good knowledge of software methodologies, tools, and typical architectural patterns. Experience with trading and risk management solutions More ❯

and resolve production incidents quickly and effectively. Understand, respond to, and address customer needs and issues with empathy and timeliness. Required Skills: Proficiency in Python or another typed, object-oriented programming language Proficiency in Javascript and React would be highly beneficial Good knowledge of software methodologies, tools, and typical architectural patterns. Experience with trading and risk management solutions More ❯

drive 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 ❯

with Offensive Security, Red Team testing or Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python, C++, C#, Java) You have experience of using different operating systems and networking technologies You have a good understanding (and interest in) low level concepts including More ❯

Months Location: London Education: Computer Science Soft Skills: Strong written and verbal communication skills Experience: Hands on programming experience with: Proficient Python Programming Key skills: Functions, classes, and object-oriented programming, List comprehensions, generators, Error handling, Working with virtual environments and package management (pip, venv) Data Manipulation & Analysis (Pandas & NumPy) Key libraries: pandas, numpy, (optional: polars) Key skills More ❯

to uncover edge cases and 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 (ideally Core Java) Proven background as an SDET Component testing, end-to-end testing & failure scenario testing Exploratory testing Desirable Experience: Continuous Delivery & CI/ More ❯

to uncover edge cases and 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 (ideally Core Java) Proven background as an SDET Component testing, end-to-end testing & failure scenario testing Exploratory testing Desirable Experience: Continuous Delivery & CI/ More ❯

technologies that help us build better, faster, and smarter. What You’ll Need Strong experience developing back-end systems in Python (any framework). Good understanding of databases, object-oriented design, and SOLID principles. Experience building scalable applications using AWS and cloud-native technologies. Strong problem-solving and analytical skills. A collaborative mindset with excellent communication skills. Passion More ❯

technologies that help us build better, faster, and smarter. What You’ll Need Strong experience developing back-end systems in Python (any framework). Good understanding of databases, object-oriented design, and SOLID principles. Experience building scalable applications using AWS and cloud-native technologies. Strong problem-solving and analytical skills. A collaborative mindset with excellent communication skills. Passion More ❯

in problem analysis, issue resolution, and system troubleshooting. Strong communication skills both verbal and written. Proficiency with MS Office Suite (Word, Excel, PowerPoint) and MS Outlook. Knowledge of object-oriented programming, Oracle administration, and system administration is a plus. More ❯

and resolve production incidents quickly and effectively. Understand, respond to, and address customer needs and issues with empathy and timeliness. Required Skills: Proficiency in Python or another typed, object-oriented programming language. Deep knowledge of software methodologies, tools, and typical architectural patterns. Experience with trading and risk management solutions is a nice to have Experience designing and building More ❯

and resolve production incidents quickly and effectively. Understand, respond to, and address customer needs and issues with empathy and timeliness. Required Skills: Proficiency in Python or another typed, object-oriented programming language. Deep knowledge of software methodologies, tools, and typical architectural patterns. Experience with trading and risk management solutions is a nice to have Experience designing and building More ❯

in the future this is an opportunity to experience trading infrastructure in a small business. My client is based in London C# Engineering, Developer, C# Server Side, Multiuthreading, C++. , OO Development Developer C# C++ SQL SQL 2008 Quant Trader Bank C# winforms More ❯

learning, and creative problem-solving The ideal Backend Developer – Python will have: Proven experience building and maintaining scalable backend systems using Python (any major framework) Solid knowledge of databases, OO design, data structures, and SOLID principles A proactive, analytical mindset and enthusiasm for exploring new technologies Experience working within Agile development environments Strong communication skills and a collaborative approach What More ❯