1 to 25 of 46 Remote/Hybrid Permanent WebSockets Jobs

Product Engineering - Team Lead

Location
Greater London, England, United Kingdom
data pipelines using languages such as Node.js, Python, Go, or similar. Solid understanding of end‐to‐end system architecture: APIs, microservices, event‐driven architectures, WebSockets, message queues, databases, and how frontend and backend systems work together in high‐performance environments. Experience with infrastructure and DevOps fundamentals: CI/CD, cloud ...

Product Engineering - Team Lead

Location
Greater London, England, United Kingdom
data pipelines using languages such as Node.js, Python, Go, or similar. Solid understanding of end‐to‐end system architecture: APIs, microservices, event‐driven architectures, WebSockets, message queues, databases, and how frontend and backend systems work together in high‐performance environments. Experience with infrastructure and DevOps fundamentals: CI/CD, cloud ...

Senior Developer

Location
United Kingdom
secure & robust applications in enterprise environments (Oauth2.0, credential and identity management Navigate delivery of live + timeseries based data analysis pipelines alongside integration with WebSockets and messaging Knowledge of Python, FastAPI and UV-based package management Good experience of git and trunk-based workflow management Degree in engineering, mathematics, physical ...

AI Engineer (Fluent Portuguese & English)

Hiring Organisation
Chubb
Location
London, United Kingdom
Salary
£ 80 K
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/ ...

AI Engineer (Fluent in Mandarin & English)

Location
Greater London, England, United Kingdom
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 ...

Front End Engineer

Hiring Organisation
Interactive Brokers
Location
London, United Kingdom
Salary
£ 80 K
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 ...

Senior UI Engineer

Hiring Organisation
McGregor Boyall
Location
London, United Kingdom
Salary
£ 100 K
updates and deep linking.Integrate AI-powered features via backend APIs.Optimise startup time, memory usage and overall performance.Manage local state and message history efficiently.Work with WebSockets and other real-time technologies.Troubleshoot complex desktop and production issues.What We're Looking ForStrong software engineering background.Proven experience building production Electron applications.Strong JavaScript/TypeScript ...

Senior UI Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
South East, United Kingdom
Employment Type
Permanent, Work From Home
Integrate AI-powered features via backend APIs. Optimise startup time, memory usage and overall performance. Manage local state and message history efficiently. Work with WebSockets and other real-time technologies. Troubleshoot complex desktop and production issues. What We're Looking For Strong software engineering background. Proven experience building production Electron ...

Senior Software Engineer - Scientific / HPC

Hiring Organisation
Technical Futures Ltd
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
Ansible, OpenTofu). Modern Python tooling and packaging such as uv. Data storage and pipelines, including large simulation results and model serving. API, REST, WebSockets such as FastAPI. Hybrid working available (3 days office/2 WFH), a very generous base salary dependent on your level of skills and experience ...

Back-End Engineer, Trading

Location
Greater London, England, United Kingdom
Professional 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 ...

Senior PHP Developer

Hiring Organisation
Ascent Resourcing Limited
Location
Manchester, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
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 ...

Back-End Engineer, Trading

Hiring Organisation
Blockchain
Location
London, United Kingdom
Salary
£ 80 K
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 ...

Senior Software Engineer - k6 Core | United Kingdom | Remote

Location
United Kingdom
completion Clear technical communication skills, especially in code reviews and design discussions A good understanding of internet protocols such as HTTP, gRPC, and WebSockets, with some familiarity with lower-level networking concepts Experience with modern development practices, including testing, code review, and iterative development Bonus Points ...

Senior Software Engineer | Voice | Full-Stack

Hiring Organisation
DeepL
Location
London, United Kingdom
Salary
£ 80 K
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 ...

Director Data & Analytics API Experience - Data Services

Location
Belfast, Northern Ireland, United Kingdom
Python, with the ability to write clean, idiomatic, and robust code for public consumption.**Technical Stack*** Environment: Google Cloud Platform (GCP), Apigee.* Protocols: WebSockets, REST, GCS.* Tooling: Python (Expert), OAuth 2.0, GitHub, Protobuf/Avro, SQL.**Company Benefits:*** Bonus Programme* Equity Programme* Employee Stock Purchase Plan (ESPP)* Private Medical ...

Front End Engineer

Location
Greater London, England, United Kingdom
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 asPina ...

Senior Full-Stack Engineer

Location
Greater London, England, United Kingdom
Redis Understanding of cloud services (AWS, Vercel, or similar) Excellent problem‐solving and communication skills Nice to Have Experience with real‐time systems and WebSockets Knowledge of payment processing (Stripe) Previous experience in ticketing or events industry Contributions to open‐source projects Benefits Competitive salary with equity options. Flexible hybrid ...

Senior Software Developer

Hiring Organisation
Addition
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior Software Developer Permanent | Competitive Salary + Annual Performance Bonus Location: London | Hybrid – 1 Day per Week in the Office We’re partnering with a forward-thinking technology business to appoint an experienced Senior Full ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
We are seeking a Senior Full Stack & Systems Engineer to join our Defence delivery team. This is a versatile, high-impact role designed for funded client delivery: you will build mission-critical web applications and ...

Software Engineer (Backend / Full-Stack) - Go, X.509, React

Hiring Organisation
Adecco
Location
Nationwide, United Kingdom
Employment Type
Permanent
Salary
£40000 - £70000/annum Benefits
modern CSS frameworks, ideally Tailwind CSS Desirable 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 architectures Additional 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. ...

Software Engineer (Backend / Full-Stack) - Golang

Hiring Organisation
Adecco
Location
London, United Kingdom
Salary
£ 55 K
modern CSS frameworks, ideally Tailwind CSS________________________________________Desirable 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 architectures________________________________________Additional 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. ...

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

Location
Greater London, England, United Kingdom
## FX Client Platforms - Senior UI Software Engineer (Vice President)Applyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26984109**FX Client Platforms - Senior UI Software Engineer (Vice President)****About ...

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 ...

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 ...