51 to 75 of 93 WebSockets Jobs in London

FX Client Platforms - Senior UI Software Engineer (Vice President)

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
Job ID: 98742248336Posted: 2026-08-21Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiFX Client Platforms - Senior UI Software Engineer (Vice President)About the RoleWe are seeking a Senior Applications Developer to join ...

Senior Lead Software Engineer- Back End- Madrid

Location
Greater London, England, United Kingdom
Behind every investment is a person with ambitions, motivations and values. While we know that every client is unique, they come to J.P. Morgan Personal Investing for the same reason: our straightforward and transparent approach ...

Market Pre Trade C# Developer (Contract)

Location
Greater London, England, United Kingdom
Role: Market Pre Trade C# Developer (Contract) Location: London Contract duration: 6 Months initial term (with further extension potential) Rate: Competitive Join a high-performing Markets Pre-Trade technology team delivering next-generation services used ...

Engineer C# (Full Stack)

Hiring Organisation
Liquidnet
Location
London, UK
Employment Type
Full-time
Group OverviewThe TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data ...

Full Stack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
real-time applications using Nextjs, React and TypeScript. Build complex, data-driven interfaces using Web Components and AG Grid. Implement real-time communication using WebSockets or SignalR. Develop RESTful APIs and microservices using C#, doNET 8 and Python. Build distributed systems using RabbitMQ and Redis. Work with SQL Server … DevOps and GitHub. Essential Experience Next.js, React, TypeScript, Web Components and AG Grid. Front-end trading application development. Real-time sales and trader workflows. WebSockets or SignalR. C#, dotNET 8, Python, RESTful APIs and microservices. RabbitMQ and Redis. SQL Server or AWS RDS, plus MongoDB or another NoSQL database. Azure ...

Lead UI Developer – Single Dealer Platform (TypeScript / RxJS / React)

Location
Bromley, England, United Kingdom
delivery plans. Own the front end architecture (React + TypeScript + RxJS), including state management, observables, and data flow design for live market data (WebSockets/Server Sent Events). Design and implement modular, testable, and reusable components and design system primitives aligned to accessibility (WCAG 2.1 AA+). Drive … . What we are looking for Solid years building web applications with TypeScript and React; 3+ years in a senior/lead role. WebSockets, Server-Sent Events, WebRTC or other high performance bidirectional data streaming experience. GraphQL, Protobuf, Flatbuffers or other schema-driven API design tools. Strong RxJS (or equivalent ...

Software Developer - Data Infrastructure

Hiring Organisation
SQUAREPOINT CAPITAL
Location
London, United Kingdom
Salary
£ 100 K
Position Overview:The Data Infrastructure team manages the service-oriented data storage infrastructure for the firm. We implement microservices that provide high performance solutions to access large data sets required in trading and research. We ...

Principal Software Engineer - C#

Location
City Of London, England, United Kingdom
Role Overview ICRV are seeking an exceptional Principal Engineer to own the architecture, design and hands‐on delivery of a desktop platform automating and streamlining trading desk workflows. This is a high‐visibility player‐coach ...

Principal Software Engineer - C#

Location
Greater London, England, United Kingdom
## Principal Software Engineer - C#Applylocations: Londontime type: Full timeposted on: Posted Todayjob requisition id: R5616The TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global ...

Senior Software Engineer Engineering · London · On-site

Location
Greater London, England, United Kingdom
we make it easy for developers and AIs to build on health data. hundreds of wearables, sensors, labs, and health apps — connected, normalized, and made intelligent through a single platform. 1,000s of developers and ...

Principal Software Engineer - C#

Hiring Organisation
Liquidnet
Location
London, United Kingdom
Salary
£ 100 K
The TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible ...

Senior Machine Learning Engineer

Location
City Of London, England, United Kingdom
Position Overview We are seeking a Senior Machine Learning Engineer to design, deploy, and optimize our next-generation Conversational AI and Data Analytics platforms. You will bridge the gap between AI research and production engineering. ...

Principal Software Engineer - C#

Hiring Organisation
Liquidnet
Location
London, UK
Employment Type
Full-time
The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
About Wintermute Wintermute is one of the largest crypto native algorithmic trading companies in digital assets. We provide liquidity across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well ...

Front-end Engineer (React / TypeScript)

Location
Greater London, England, United Kingdom
Validus is looking for a talented engineer to join our front-end development team. The front-end team is responsible for the design and development of our web applications implemented in React. The front-end ...

Senior Front Office Developer - HFT

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Senior Software Engineer, Quant trading – Python, RUST, C++London (Hybrid)150,000-2000,000 + 50k+ bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client. My client, a leading ...

Senior Front Office Developer – HFT

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
Senior Software Engineer, Quant trading – Python, RUST, C++London (Hybrid)150,000-2000,000 + 50k+ bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client.My client, a leading player ...

Python Developer

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Contract
Job Description: Role Summary: We are seeking a Python Developer to build and maintain high-performance banking applications. You will engineer scalable backend services using Python and develop intuitive frontend interfaces using React. This role ...

Senior Software Engineer, Quant trading – Python, Java, C++

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 100 K
Senior Software Engineer, Quant trading – Python, JavaLondon (Hybrid)130,000-175,000 + benefits and bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client.My client, a leading player ...

Software Engineer, C++

Hiring Organisation
Tower Research Capital
Location
London, United Kingdom
Salary
£ 120 K
Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation ...

Senior Software Engineer, Quant trading - Python, RUST, C++

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Senior Software Engineer, Quant trading – Python, RUST, C++London (Hybrid)150,000-180,000 + 50k bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client. My client, a leading ...

Software Engineer III - UI Development Team

Hiring Organisation
Bank of America
Location
Bromley, Kent, United Kingdom
Salary
£ 100 K
Job Description:Job Title: Software Engineer IIICorp Title: VPLocation: BromleyAt Bank of America, we are guided by a common purpose to help make financial lives better through the power of every connection. We do this ...

Senior Software Engineer, Quant trading – Python, RUST, C++

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 100 K
Senior Software Engineer, Quant trading – Python, RUST, C++London (Hybrid)150,000-180,000 + 50k bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client.My client, a leading player ...

Senior Software Engineer - Quant trading

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Senior Software Engineer, Quant trading – Python, JavaLondon (Hybrid)130,000-175,000 + benefits and bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client. My client, a leading ...