1 to 25 of 137 OO Jobs in London

as we continue to evolve the product and architecture. What We’re Looking For 5+ years’ software engineering experience, ideally within a SaaS, fintech, or payments environment. Strong object-oriented programming background — any OOP language (Java, C++, Python, etc.) as long as you’re comfortable working with .NET/C# . Solid full-stack capability, including experience with More ❯

as we continue to evolve the product and architecture. What We’re Looking For 5+ years’ software engineering experience, ideally within a SaaS, fintech, or payments environment. Strong object-oriented programming background — any OOP language (Java, C++, Python, etc.) as long as you’re comfortable working with .NET/C# . Solid full-stack capability, including experience with More ❯

market connectivity. Integrate trading systems with upstream trade execution and regulatory platforms. Work within an agile team delivering high-priority solutions under tight deadlines. Skills & Experience Strong Python (or OO language: Java, C#, C++) development experience. Solid understanding of data structures, algorithms, and design patterns. Experience with SQL/NoSQL, APIs, and distributed systems. Familiarity with agile methodologies and CI More ❯

market connectivity. Integrate trading systems with upstream trade execution and regulatory platforms. Work within an agile team delivering high-priority solutions under tight deadlines. Skills & Experience Strong Python (or OO language: Java, C#, C++) development experience. Solid understanding of data structures, algorithms, and design patterns. Experience with SQL/NoSQL, APIs, and distributed systems. Familiarity with agile methodologies and CI More ❯

s go. Why Join FDM’s Graduate Programme? Up to 12 weeks of hands-on training in our Skills Lab with expert coaches Learn practical skills such as Object-Oriented Programming, Java, Springboot, React, Python, JavaScript, Git, SQL, cloud platforms, and CI/CD pipelines and AI integrations Make an impact and work on real projects with top More ❯

and 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 ❯

etc) 8+ years proven experience as a C# Developer or similar software development role. Proficiency in C# programming language and .NET framework including .Net Core Strong understanding of object-oriented programming principles. Experience with software development methodologies such as Agile or Scrum. Familiarity with relational databases (e.g., SQL Server, MySQL, PostgreSQL) and ORM frameworks (e.g., Entity Framework). More ❯

optimizations. Preferred Qualifications Experience building streaming data processing and ingestion pipelines Experience building distributed data processing systems which handle a high volume of client queries Strong knowledge of object oriented programming, data structures, algorithms and design patterns Prior experience building systems used by multiple technical and non-technical teams Over 6 years' experience in Financial industry About Goldman More ❯

React; with server-side REST and GraphQL APIs written in Python3. What we’re looking for... Essential skills and experience: 5+ years experience of developing complex applications using an OO language (ideally Python, but experience in C++/C#/Java/etc would also be considered) Experience working on mission-critical applications, following a robust SDLC Excellent communication and More ❯

within Agile teams, using Git for version control and following best practices in security, testing, and code quality. Your Profile Essential Skills & Experience * Strong proficiency in Java and object-oriented programming. * Expertise with Spring Framework, REST APIs, and ORM tools. * Solid understanding of web technologies, security, and performance optimisation. * Experience with testing frameworks such as JUnit or Mockito. More ❯

and 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 ❯

and 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 ❯

accurate, compliant delivery. Participate in code reviews and continuous improvement initiatives. What you’ll need: Proven C# and .NET development expertise (Framework & .NET Core). Strong understanding of object-oriented programming, design principles, and best practices. Solid experience with SQL Server and Oracle databases. Experience in financial or regulatory reporting systems within banking. Familiarity with DevOps, CI/ More ❯

performance and scalability. Stay up-to-date with the latest Java technologies and industry trends. Required Skills & Experience: Strong experience in Java (Java 8+) development. Solid understanding of object-oriented programming and design patterns. Experience with Spring Framework (Spring Boot, Spring MVC, Spring Data) . Experience with relational databases (e.g., MySQL, PostgreSQL) and writing SQL queries. Knowledge of More ❯

in Computer Science, Engineering, or a related technical discipline, and 5+ years of experience as a software engineer within a commercial environment. Proficiency in at least one modern object-oriented programming language (preferably Java) and willingness to learn new technologies. Proven experience developing microservices and deploying them on major cloud providers (AWS, Azure, or GCP). Working knowledge More ❯

FX and payments industry is desirable. Skills Strong knowledge of C# & .NET 6 or above and Angular. Knowledge of Azure Cloud, in particular providing SaaS solutions. Knowledge of object-oriented programs, SQL, web application development and writing secure and robust code. Creating/maintaining accurate and current system documentation to serve as reference points for all staff and More ❯

motion planning systems. Integrate and calibrate sensors like cameras (RGB, depth, stereo) and LiDAR. Work on navigation, localisation, and mapping for robotic platforms. Write clean, modular code using object-oriented and SOLID design principles. Follow Agile and CI/CD best practices, including version control, testing, and deployment. Take part in sprints, stand-ups, and retrospectives using Scrum More ❯

decision-making. Contribute to internal libraries and shared frameworks, ensuring performance, reliability, and maintainability across the technology stack. Requirements Strong professional experience with Python and deep understanding of object-oriented programming. Advanced knowledge of SQL and relational database technologies. Familiarity with DevOps practices, including Docker and cloud-native deployment pipelines. Proficiency in Linux and Windows environments. Experience with More ❯

desirable) Relevant qualifications and experience i.e. BSc in Computer Science or Engineering, Software Development certifications, etc. Demonstrable experience in configuring and developing complex software solutions Strong understanding of object-oriented programming and test driven development (TDD and BDD) Strong understanding of agile software engineering practices Appetite for continual experimentation & learning Desirable : Experience of AWS or Azure Hands-on More ❯

experience in a startup environment. A 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 with cloud platforms (AWS More ❯

experience in a startup environment. A 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 with cloud platforms (AWS More ❯

to streamline workflows and improve system efficiency. Requirements: Strong academic background in Computer Science, Engineering, Physics, Mathematics, or a related discipline. Proficiency in C++ and experience with additional object-oriented languages (C#, Java). Understanding and experience working in Linux environment. Experience using Python, Shell, or similar scripting tools for automation and data processing. Proven experience with tick More ❯

to streamline workflows and improve system efficiency. Requirements: Strong academic background in Computer Science, Engineering, Physics, Mathematics, or a related discipline. Proficiency in C++ and experience with additional object-oriented languages (C#, Java). Understanding and experience working in Linux environment. Experience using Python, Shell, or similar scripting tools for automation and data processing. Proven experience with tick More ❯

payment infrastructure. What You’ll Bring 5+ years of commercial software engineering experience Proven experience in SaaS or payment systems Strong proficiency in full-stack development using an object-oriented backend language (.NET) and a modern JavaScript framework (ideally React) Solid understanding of databases , API design , and web architecture Experience with cloud platforms (AWS, Azure, or GCP) Strong More ❯

payment infrastructure. What You’ll Bring 5+ years of commercial software engineering experience Proven experience in SaaS or payment systems Strong proficiency in full-stack development using an object-oriented backend language (.NET) and a modern JavaScript framework (ideally React) Solid understanding of databases , API design , and web architecture Experience with cloud platforms (AWS, Azure, or GCP) Strong More ❯