Quantitative Developer, Investment Management Unit, Quantitative Investment Management, London SEI is seeking to hire a Quantitative Developer to develop, enhance and support platforms and tools that facilitate signal research, portfolio construction, performance attribution and reporting. What you will do: Infrastructure More ❯
We aim to bring innovation to all our products and those of our clients. We are seeking a talented React Native Developer for various projects. If you're eager to be part of a successful team, BAP is a great More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
Engineer, you must have the following experience: 10+ commercial experience as a Frontend Developer Architecting and developing desktop and mobile interfaces React, React Native, Redux, React Hooks CSS, Typescript, Websockets, REST APIs Leading cross-functional teams to drive product launches and realise end-to-end solutions Bonus points : understanding of trading interfaces, financial experience, blockchain knowledge, start-up experience With More ❯
Engineer, you must have the following experience: 10+ commercial experience as a Frontend Developer Architecting and developing desktop and mobile interfaces React, React Native, Redux, React Hooks CSS, Typescript, Websockets, REST APIs Leading cross-functional teams to drive product launches and realise end-to-end solutions Bonus points : understanding of trading interfaces, financial experience, blockchain knowledge, start-up experience With More ❯
a single mistake can have major consequences. Strong stakeholder communication skills -you need to translate technical work into trader-friendly solutions. English is fine. Familiarity with distributed systems and WebSockets is a bonus. Not a specialized web developer role-this is about backend risk tech. Bachelor's/Master's degree (e.g., TU Delft). Nice To Have Experience with More ❯
Solid experience with Python and SQL is a must. Educational background in Computer Science (BSc with professional experience, or MSc with internship experience). Exposure to distributed systems and WebSockets is a plus. Familiarity with Postgres , Grafana , and handling terabytes of data in high-scale, high-uptime environments. Preference for candidates who've worked on large, business-critical systems, not More ❯
London, England, United Kingdom Hybrid / WFH Options
Consortia
joining a high-performing backend team working in a Node.js and TypeScript monorepo. You'll design and scale services via REST and GraphQL APIs, build real-time functionality over websockets, and ship robust, production-ready features in a collaborative, remote-first environment. What You'll Be Doing Craft scalable backend solutions using modern tooling and APIs Collaborate with engineers, product More ❯
London, England, United Kingdom Hybrid / WFH Options
TechBiz Global
parallelism in Go using goroutines, channels, and synchronization primitives like mutexes and wait groups. Develop robust networking and streaming capabilities , including experience with network programming, sockets, and protocols like WebSockets and WebRTC. Lead performance optimization initiatives by profiling Go code, reducing latency, and efficiently managing memory and garbage collection. Build fault-tolerant systems with strong recovery mechanisms and failover strategies More ❯
North West London, London, United Kingdom Hybrid / WFH Options
ByteHire
Job Role: Product Engineer (backend C# .net core) Reference: BH-355p Job Type: Permanent Location: Hybrid, West Hampstead, London (2 days/week in-office) Salary: up to £75-£85k per annum About The Client: Our client builds AI-driven More ❯
Bradford, England, United Kingdom Hybrid / WFH Options
Nicoll Curtin
2 days ago Be among the first 25 applicants Direct message the job poster from Nicoll Curtin Python Technical Architect - Python, Django, Flask, Microservices, Rest API, Cloud, CI/CD, Databases, FastAPI I am working with a leading global consultancy More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
ByteHire
Job Role: Product Engineer (backend C# .net core) Reference: BH-355p Job Type: Permanent Location: Hybrid, West Hampstead, London (2 days/week in-office) Salary: up to £75-£85k per annum About The Client: Our client builds AI-driven More ❯
London, England, United Kingdom Hybrid / WFH Options
ZipRecruiter
Job Description Location: Hybrid, West Hampstead, London (2 days+/week in-office, non-negotiable) Salary: up to £75-£80k per annum About us: We're a Y-Combinator backed startup, founded by experienced engineers and repeat founders from companies More ❯
The Structured Documents team (Structured Modes stream) is seeking a highly skilled and passionate FullStack Software Engineer to join our team responsible for the structured formats at Miro. Our platform empowers millions of users daily to visually collaborate, brainstorm, and More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
Apollo Solutions
English Start Date: ASAP Interview Stages: 1 Stage Day Rate: £(Negotiable & Competitive) Core Responsibilities: Work on low-latency, multithreaded applications Develop and maintain networking protocols including UDP, TCP, and WebSockets Implement and document RESTful APIs, utilising Swagger for documentation Interface with third-party devices and write necessary drivers Collaborate with the team to reduce a backlog of drivers and help … a development environment utilising Windows, Visual Studio, Jira, BitBucket, and TeamCity Essential Skills: Strong experience in C++ , particularly with multithreaded, low-latency applications Familiar with networking protocols (UDP, TCP, WebSockets) Experience with Swagger documentation and implementing RESTful APIs Comfortable with driver writing and interfacing with third-party devices Familiar with development environments including Windows and Visual Studio Experience with Jira More ❯
Wokingham, Berkshire, United Kingdom Hybrid / WFH Options
EVS Broadcast Equipment SA
improvement of development processes and tools Profile Bachelor or Master's degree in computer science or equal Technical Skills: 5 years plus experience in C++ Experience in RESTful APIs, WebSockets, UDP and TCP Experience of tools such as WireShark and Postman Experience of working in large multithreaded codebase Experience in software development on Windows Experience in software design and architecture More ❯
Solid experience with Python and SQL is a must. Educational background in Computer Science (BSc with professional experience, or MSc with internship experience). Exposure to distributed systems and WebSockets is a plus. Familiarity with Postgres , Grafana , and handling terabytes of data in high-scale, high-uptime environments. Preference for candidates who've worked on large, business-critical systems, not More ❯
London, England, United Kingdom Hybrid / WFH Options
Bitfinex
high-availability concepts. Thoroughly experienced with React, React-Native (mainly around Expo), Redux and the core principles surrounding these. Familiar with modern front-end pipelines and tools. Experienced with WebSockets, RESTful based APIs. Interested in bringing diverse, innovative applications to life. Interested in modernizing and optimizing different mobile or web applications. Knowledge in native languages (Swift/Kotlin) and familiarity More ❯
London, England, United Kingdom Hybrid / WFH Options
Zenos Technology
We are looking for a Senior Unreal Programmer to join our core Zenos team. You will be responsible for implementing key platform features in addition to solving important technical challenges throughout development. As an ideal candidate, you will have experience More ❯
London, England, United Kingdom Hybrid / WFH Options
Blockchain Works
Responsibilities Design, develop, and maintain high-performance, multi-threaded backend systems using Mainly Rust and be able to use Python. Collaborate with frontend engineers and other team members to integrate backend systems with user-facing components Write unit tests using More ❯
Cambourne, Cambridgeshire, United Kingdom Hybrid / WFH Options
Remotestar
Remote working is the new norm. It's not just for pandemics. Do you want to avoid a daily commute, reduce stress, achieve a work-life balance, spend more time with your family/friends, be more creative, and improve More ❯
The Original Bitcoin Exchange Inspired by Bitcoin's vision of financial freedom, we are committed to empowering individuals to transact and connect seamlessly across the globe. From the early days of the Bitcoin revolution, our mission has been to champion More ❯
We are looking for a Senior Unreal Programmer to join our core Zenos team. You will be responsible for implementing key platform features in addition to solving important technical challenges throughout development. As an ideal candidate, you will have experience More ❯
for best practices Partner with engineering leadership to scale mobile capabilities and contribute to hiring efforts Our Technology Stack Kotlin/Java Jetpack Compose RxJava/Coroutines Proto3/WebSockets/REST APIs Flutter (as a cross-platform addition) CI/CD Pipelines What You'll Need 6+ years of professional Android development experience Strong knowledge of the Android SDK … Jetpack Compose, and MVP/MVVM architecture Solid experience with Kotlin Coroutines, RxJava, and Java concurrency Proficiency with dependency injection frameworks Experience building apps that consume HTTP APIs, WebSockets, and Protocol Buffers (proto3) Confidence in writing and maintaining UI tests Clear and professional English communication (B2+ level or higher) Proven leadership or management experience within a mobile team Nice to More ❯
London, England, United Kingdom Hybrid / WFH Options
Gendo
of a highly interactive React (Next.js) application, working closely with product and backend teams. Managing complex application state and ensuring smooth UX in a real-time, collaborative environment using WebSockets for live updates and async generation results. Implementing 2D and 3D elements within a canvas-based UI using three.js (react-three-fiber), supporting features like image resizing and future 3D … and deploying complex, production-level React applications. Strong proficiency in Next.js, React state management (e.g., Redux, Zustand), and component-based architecture. Experience with real-time data handling, ideally using WebSockets or similar technologies. Understanding of three.js (or WebGL in general), or a strong interest in learning and applying these technologies. Experience with full-stack development, particularly API design and development. More ❯
London, England, United Kingdom Hybrid / WFH Options
Elwood Technologies Services Limited
Experience designing client-facing APIs. Expertise in Golang or other structured languages (C#, C++, Rust). Experience working in cloud and containerized environments. Proficiency in building and using REST, WebSockets, and/or FIX-based APIs. Strong knowledge of data structures and algorithms. Excellent software design and debugging skills. Bachelor's degree or relevant work experience in Computer Science, Mathematics More ❯