1 to 25 of 44 WebSockets Jobs in London

Design and optimize relational and NoSQL databases including PostgreSQL, MySQL, Cloud SQL, MongoDB, Redis, and BigQuery. Build scalable API integrations using REST, GraphQL, gRPC, WebSockets, and event streaming technologies such as Kafka or Google Pub/Sub. Deploy and operate cloud-native applications on Google Cloud Platform (GCP) using services ...

High-performance microservices Data infrastructure and analytics pipelines Bonus points for SQL Boost ASIO Apache Arrow, Parquet, Protocol Buffers or FlatBuffers gRPC, REST or WebSockets Docker, Kubernetes, AWS or Google Cloud Rust, Python or Q This is an opportunity to solve complex engineering problems in an environment where software performance ...

attitude capable of taking projects from inception to completion.At least a bachelor’s degree in a technical or quantitative field.Stack:Frontend: TypeScript, React, Openfin, WebSockets to build our real-time, multi-window, multi-monitor UI.Backend: Java, Aeron messaging/Aeron Cluster to build our high performance, fault-tolerant systems.Infrastructure: GitHub ...

First Token) and maximize throughput. This includes implementing quantization, caching strategies, and efficient batching.Production Engineering: Build and maintain real-time AI pipelines using WebSockets and SSE, ensuring seamless low-latency delivery for voice (ASR/TTS) and text applications.Architecture & MLOps: Deploy and orchestrate models within containerized microservice architectures (Docker/ ...

experience is a strong plus A solid grounding in core computer science fundamentals: data structures, algorithms and system design Experience with real-time data (WebSockets, SSE or similar) is a significant advantage in this role Good to have experience with AG Grid, Prime Vue, UI state management systems such ...

Judgment: A proven track record of designing scalable, maintainable systems and clearly articulating architectural trade-offs.API & Integration Skills: Proficiency with REST, streaming (SSE/WebSockets), and the real-world complexities of stitching together messy upstream systems.Data Proficiency: Strong SQL/NoSQL skills, query optimization, and data modeling.Testing & Ownership Mindset ...

mobile apps with React Native, all in TypeScript. We manage state with Redux and React Query, stream real-time trading data over WebSockets, and consume REST APIs across our services.ResponsibilitiesDesign, implement and maintain complex features and interfaces across web and mobile (iOS & Android), built with React, React Native and TypeScriptWork ...

edge that every customer touches. The proxy handles all client connections and transfers every byte of query traffic, serving every data protocol: Postgres, HTTP, WebSockets, and Data API. We route and manage large volumes of concurrent connections, solving load balancing, authentication, and data access at high throughput. We focus ...

knowledge of Bloomberg, Refinitiv/LSEG, ICE, CME, S&P Global Platts, Argus, and related market data services.Experience integrating data through REST APIs, FIX, WebSockets, SFTP, streaming technologies, and vendor SDKs.Strong programming capabilities in Python, C#, SQL, and modern integration technologies.Practical experience with Azure, Databricks, Snowflake, and cloud-native data ...

testing, and deployment. Technical Skills & Expertise- Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms Architecture: Strong understanding ...

Experience with AI classifiers, large language models or machine-learning pipelines. Working with transcription, telephony or other high-volume communications datasets. Event-driven architectures, WebSockets or real-time application functionality. Integrations involving CRM, telephony or property-technology platforms. AWS technologies including S3, RDS, EC2, Lambda, ECS and CloudWatch. Experience working ...

WILL NEEDProfessional experience building backend services, ideally in Kotlin and/or Python.Solid experience designing and building backend services and REST APIs; experience with WebSockets or other real-time streaming protocols such as NATS/JETSREAM is a plus.Working knowledge of SQL and experience integrating with multiple internal or third ...

frontend, and shipping backend services in Node.js/TypeScript (or a strongly transferable language, with willingness to ramp) on the backend.Real-time: WebRTC, WebSockets, streaming architectures, latency-sensitive systems.High Agency: You don't wait for permission. If the billing reconciliation process is slow, you automate it. If the documentation ...

Tech: C#, concurrent .NET code,TCP/IP and websockets, SQLChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev TeamPay: 85k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Backend Developer FintechQuant ...

from day 1.My client is based in Central London flex working is a given from now on.Tech: Junior C#, .Net, F#, WPF, SignalR/websockets, Protocol Buffers, Octopus, Autofac, SQL ServerChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Prop Trading Firm , City of London, 40 man flat ...

Tech: C#, .Net, F#, WPF, SignalR/websockets, Protocol Buffers, Octopus, Autofac, SQL ServerChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev TeamPay: 75k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Desktop ...

product analytics, user research, and A/B testing to drive decisions Familiarity with cloud platforms (e.g., AWS, Azure) and integration technologies (e.g., APIs, websockets) (desirable) EV, energy, renewables, automotive or infrastructure sector experience (desirable) Interviewing ASAP - get in touch with Kaiya for more information on kaiyashah@digitalgurus.co.uk ...

looking for exceptional backend software engineers with experience building complex, distributed systems.You'll ideally have experience with:Core JavaSpring FrameworkEvent-driven architecture (Kafka, Solace, WebSockets or similar)Distributed systemsDomain-Driven Design (DDD)SOLID principles and design patternsCloud-native developmentCI/CD and modern engineering practicesAI-assisted software developmentExperience within electronic ...

Tech: C#, concurrent .NET code,TCP/IP and websockets, SQLChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev TeamPay: 80k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Backend Developer FintechQuant ...

edge that every customer touches. The proxy handles all client connections and transfers every byte of query traffic, serving every data protocol: Postgres, HTTP, WebSockets, and the Data API. We route and manage large volumes of concurrent connections, solving load balancing, authentication, and data access at high throughput, with ...

with modern CSS frameworks, ideally Tailwind CSSDesirable Experience* mTLS and X.509 certificate management* HashiCorp Vault, Consul or Terraform* InfluxDB* Server-Sent Events (SSE) and WebSockets* Networking or embedded systems exposure* Data visualisation tools such as Recharts or D3* Distributed systems and scalable architecturesAdditional Requirements* Must be eligible and willing … this role.Keywords: Go, Golang, Gin, REST API, PostgreSQL, GORM, Docker, React, JavaScript, ES6, Axios, Tailwind CSS, JWT, mTLS, X.509, Terraform, Vault, Consul, InfluxDB, WebSockets, SSE, CI/CD, Microservices, Cloud Native, Distributed Systems, Secure Communications, Full Stack Developer, Backend Engineer, Remote Software Engineer, Platform Engineering. ...

Job ID: 98742248336Posted: 2026-08-04Location: 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 ...

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, through ...

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 ...

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 ...