1 to 25 of 59 OOP Jobs in London

.NET Core Backend Developer

Hiring Organisation
EXL Service
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
essential for the role: 5+ years of experience as a .NET developer Strong expertise in .NET and .NET Core with solid object-oriented programming knowledge Strong SQL skills with experience across relational and non-relational databases such as PostgreSQL, Redshift, Trino or MongoDB Experience developing SaaS applications ...

C# Developer .Net SQL - Quant Trading

Hiring Organisation
Client Server
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

C++ Developer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
C++ Developer, 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 ...

Web Developer - C#

Hiring Organisation
CV Screen Ltd
Location
Erith, Kent, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
testable code and resolve defects or performance issues What Experience is Required At least 3 years' experience in C# and .NET development with strong OOP knowledge Solid front-end skills including HTML5, CSS3 and JavaScript/TypeScript, plus a modern framework (e.g. React, Angular or Blazor) Experience with SQL databases ...

Senior C# Developer - Head of Core Platform | Hedge Fund | London

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
experience in: C# and .NET (essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Leadership & Approach Experience working ...

Senior Software Engineer C++

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Java Developer / Consultant API SpringBoot AWS

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
APIs You have a good understanding of AWS You have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming, Data Structures and Design Patterns You are familiar with DevOps, CI/CD pipelines You're collaborative, enjoy problem solving and interacting ...

Test Engineer

Hiring Organisation
Hays
Location
London Area, United Kingdom
analyse results to identify defects and inconsistencies. Log and track defects using tools such as JIRA. Required Skills and Experience Strong proficiency in C#, OOP concepts, and SOLID principles. Experience with unit testing frameworks including NUnit, MSTest, or xUnit. Proven experience in designing and maintaining automation frameworks. Hands-on experience ...

Technical Analyst (Summer Internship)

Hiring Organisation
Quantifi
Location
City of London, London, United Kingdom
system for client specific performance Skills and Requirements: Working on undergraduate degree in Computer Science, Engineering or other technical discipline Experience with object-oriented programming languages (C#, C++, Python) Self-motivated with ability to work both independently and under direction Excellent interpersonal skills Optional: Knowledge of relational ...

Software Engineer

Hiring Organisation
StreetID
Location
Greater London, England, United Kingdom
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 ...

Solutions Engineer

Hiring Organisation
HireCapital
Location
City of London, London, United Kingdom
trust, high-skill environments What You Bring Hands-on experience building and running automated tests (integration, end-to-end) Containerization: Docker, Kubernetes Object-oriented programming fundamentals Linux-based operating systems Scripting: Bash/Shell, Python, or JavaScript Data querying: SQL, NoSQL, or equivalent Genuine interest in chaos ...

Dynamics 365 Engineering Manager

Hiring Organisation
HirexHire
Location
City of London, London, United Kingdom
engineers. WHAT YOU WILL NEED 8+ years of software development experience, including 3+ years leading or managing engineering teams. Strong background in object-oriented programming using languages such as C#, Java, Python, or similar. Experience building Microsoft-based applications across front-end, back-end, and services layers. ...

Principal Software Engineer Java SpringBoot AWS

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
APIs You have a good understanding of AWS You have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming, Data Structures and Design Patterns You are familiar with DevOps, CI/CD pipelines You're collaborative, enjoy problem solving and interacting ...

Golang Engineer

Hiring Organisation
intro
Location
City of London, London, United Kingdom
Golang Developer to take a key role in building their complex backend systems. The ideal candidate will have a strong background in Object Oriented Programming with at least 1 year commercially developing in Golang, and designing/implementing scalable, high performance services. The role will involve working ...

C++ Developer / Technical Lead - Fintech

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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, happy to mentor and develop others What's in it for you: *Please note ...

Python Developer FastAPI SQL Data

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
skills (PostgreSQL, SQL Server - Azure Databricks experience highly preferred) 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 Python Developer/Backend Software Engineer (Python FastAPI Data ...

Senior Software Engineer - C++, Python - Financial/Banking

Hiring Organisation
N.P.A
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 - 140,000 Annual
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 ...

Quality Assurance Automation Engineer

Hiring Organisation
Harnham
Location
London Area, United Kingdom
bring • Strong commercial experience in QA automation using Java or Kotlin. • Hands‐on use of AI tools to enhance productivity. • A deep understanding of OOP principles. • Proficiency in HTML, CSS, JavaScript, and modern web architecture. • Strong API testing capability using tools such as RestAssured, Feign, Swagger, or Postman. • Experience writing ...

QA Automation Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
bring * Strong commercial experience in QA automation using Java or Kotlin. * Hands-on use of AI tools to enhance productivity. * A deep understanding of OOP principles. * Proficiency in HTML, CSS, JavaScript, and modern web architecture. * Strong API testing capability using tools such as RestAssured, Feign, Swagger, or Postman. * Experience writing ...

Senior C# Developer .Net Core - relocate to Newcastle!

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent
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 ...

Quality Assurance Engineer

Hiring Organisation
Harnham
Location
London Area, United Kingdom
test automation across the engineering team. Skills & Experience Commercial experience in QA automation with Java or Kotlin . Strong understanding of object-oriented programming principles. Experience testing APIs using tools such as RestAssured, Feign, Swagger, or Postman. UI automation experience with Selenium, Selenide, or Playwright . Familiarity ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
ensuring high availability and rapid incident resolution. Requirements Must Haves 4+ years of professional experience with Ruby on Rails. Strong understanding of object-oriented programming and Rails architecture Extensive experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. ...

Rust Developer Low Latency Trading

Hiring Organisation
Client Server
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
London with flexibility to work from home 1-2 days a week. About you: You have commercial Rust development experience You have strong backend OOP, multithreaded software engineering experience (e.g. C++, Java, Python) You have experience of working on high throughput, low latency systems with microseconds/nanoseconds, within ...

Backend Software Engineer C# .Net SQL - Sports Trading

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
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 ...

Java Software Engineer – Quant Hedge Fund (London, Hybrid)

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
experience. The successful applicant should have exposure to modern software engineering techniques such as CI/CD as well as excellent Computer Science Fundamentals, OOP, Concurrency, and Java Generics. Excellent communication skills are also extremely important for the team, and a strong academic background in a numerate discipline, especially Computing ...