26 to 50 of 108 OOP Jobs in London

PySpark development experience, including notebook-based workflows Hands-on experience with Spark streaming and batch processing Delta table optimisation and Fabric Spark job development Solid Java programming and OOP understanding Experience working with relational and NoSQL databases Familiarity with GitLab, unit testing, and CI/CD pipelines Strong troubleshooting ability and experience working in Agile environments Excellent communication skills More ❯

PySpark development experience, including notebook-based workflows Hands-on experience with Spark streaming and batch processing Delta table optimisation and Fabric Spark job development Solid Java programming and OOP understanding Experience working with relational and NoSQL databases Familiarity with GitLab, unit testing, and CI/CD pipelines Strong troubleshooting ability and experience working in Agile environments Excellent communication skills 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 ❯

MS degree in Computer Science, Engineering, or a related subject At least 4 years of experience in Microsoft .NET (full framework, .NET Core, .NET 6) Proficiency in object-oriented programming (C#) and web concepts (Http, MVC, REST, OAuth) Knowledge of and an active interest in Design Patterns and SOLID architecture principles Excellent problem solving and troubleshooting skills 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 ❯

growth over time About You : 4–8 years of experience in a quantitative development role Solid understanding of treasury and balance sheet concepts, particularly ALM Proficient in object-oriented programming – Python Able to work collaboratively across functions and communicate technical ideas clearly Highly adaptable, with the ability to prioritise and perform in a fast-moving environment Strong More ❯

growth over time About You : 4–8 years of experience in a quantitative development role Solid understanding of treasury and balance sheet concepts, particularly ALM Proficient in object-oriented programming – Python Able to work collaboratively across functions and communicate technical ideas clearly Highly adaptable, with the ability to prioritise and perform in a fast-moving environment Strong 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 ❯

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 ❯

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 ❯

closely with stakeholders to understand requirements and deliver solutions Your Skills & Expertise Solid understanding of data structures, algorithms, and software design principles Good knowledge of Python and object-oriented programming principles Understanding of relational databases and database design fundamentals Familiarity with unit testing and integration testing practices Comfortable working collaboratively in a team environments Nice to have 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 ❯

reliable production deployments. What We’re Looking For: Essential: Experience with LLMs (GPT, BERT) and NLP tasks. Fine-tuning pre-trained models for domain-specific applications. Strong Python skills (OOP, PyTorch, Hugging Face, scikit-learn, Pandas, NumPy). Deploying models with Docker, Kubernetes, or serverless platforms. Familiarity with CI/CD, MLOps, and cloud platforms (AWS preferred). Desirable: Named More ❯

reliable production deployments. What We’re Looking For: Essential: Experience with LLMs (GPT, BERT) and NLP tasks. Fine-tuning pre-trained models for domain-specific applications. Strong Python skills (OOP, PyTorch, Hugging Face, scikit-learn, Pandas, NumPy). Deploying models with Docker, Kubernetes, or serverless platforms. Familiarity with CI/CD, MLOps, and cloud platforms (AWS preferred). Desirable: Named 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 ❯

software development lifecycle experience You have a good knowledge of networking protocols e.g. TCP/IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design Patterns You're collaborative with great communication skills What's in it for you: *Please note this is a 12 month Fixed Term Contract, with full benefits More ❯

a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms You're excited to join a start-up in a role that you can shape and influence Please note you must be a UK citizen More ❯

ofprompt engineering techniques, including designing effective prompts for different tasks, optimizing input/output formats, and leveraging techniques such as few-shot learning. Advanced Python Development Proficiency: Experience with OOP, and data-validation libraries such as Pydantic. Deep familiarity with Python and its ecosystem for AI/ML, including libraries likePyTorch, Hugging Face Transformers, andscikit-learn. Experience withdata manipulationusing libraries More ❯