Permanent WebSockets Job Vacancies

51 to 75 of 403 Permanent WebSockets Jobs

Senior Full Stack Engineer

South East London, England, United Kingdom
Hybrid / WFH Options
Burns Sheehan
and designing clean data models (SQL/NoSQL) Bonus Points For: Familiarity with AI/LLM tools (LangChain, Vercel AI SDK, OpenAI APIs) Experience building real-time apps (e.g., WebSockets) Understanding of authentication/authorization flows in web apps Knowledge of financial services, fintech, or enterprise-grade products This is a rare opportunity for a Senior Full Stack Engineer to More ❯
Posted:

Senior Full Stack Engineer

london, south east england, united kingdom
Hybrid / WFH Options
Burns Sheehan
and designing clean data models (SQL/NoSQL) Bonus Points For: Familiarity with AI/LLM tools (LangChain, Vercel AI SDK, OpenAI APIs) Experience building real-time apps (e.g., WebSockets) Understanding of authentication/authorization flows in web apps Knowledge of financial services, fintech, or enterprise-grade products This is a rare opportunity for a Senior Full Stack Engineer to More ❯
Posted:

Senior Full Stack Engineer

slough, south east england, united kingdom
Hybrid / WFH Options
Burns Sheehan
and designing clean data models (SQL/NoSQL) Bonus Points For: Familiarity with AI/LLM tools (LangChain, Vercel AI SDK, OpenAI APIs) Experience building real-time apps (e.g., WebSockets) Understanding of authentication/authorization flows in web apps Knowledge of financial services, fintech, or enterprise-grade products This is a rare opportunity for a Senior Full Stack Engineer to More ❯
Posted:

Senior Backend Engineer

United Kingdom
Hybrid / WFH Options
Skillsearch
C++, C#, Go, or NodeJS (C++ and C# preferred). 5+ years of professional experience in backend systems, ideally in the gaming industry. Deep knowledge of real-time networking: WebSockets, RPCs, REST APIs, gRPC, etc. Experience with cloud platforms such as AWS, Azure, or GCP. Strong understanding of distributed systems, data structures, and algorithms. Familiarity with matchmaking logic, player sessions More ❯
Posted:

Senior Backend Engineer

London, England, United Kingdom
Hybrid / WFH Options
Skillsearch
C++, C#, Go, or NodeJS (C++ and C# preferred). 5+ years of professional experience in backend systems, ideally in the gaming industry. Deep knowledge of real-time networking: WebSockets, RPCs, REST APIs, gRPC, etc. Experience with cloud platforms such as AWS, Azure, or GCP. Strong understanding of distributed systems, data structures, and algorithms. Familiarity with matchmaking logic, player sessions More ❯
Posted:

UI Engineer- Market-leading Investment Fund - Oxford Knight

London, England, United Kingdom
Jobs via eFinancialCareers
using the latest TypeScript, HTML, CSS, and libraries Expert level skills in JavaScript libraries, such as React; specific experience in Node.js is ideal Experience with GraphQL/REST/Websockets (GraphQL Subscriptions) Exposure to deployment & infrastructure tools (ideally experience with Docker, Kubernetes) Superlative problem-solving skills and an innate ability to break complex technical problems into actionable items Collaborative and More ❯
Posted:

Unity Developer

Reading, England, United Kingdom
Code Wizards
Skills And Experience Strong programming experience with C# and Unity (client-side familiarity) Proven experience developing backend systems for games or real-time applications Solid knowledge of RESTful APIs, WebSockets, and multiplayer networking concepts Experience with backend frameworks (e.g., Node.js, .NET Core, or similar) Familiarity with database technologies (SQL & NoSQL), such as PostgreSQL, MongoDB, Redis Experience with matchmaking logic, game More ❯
Posted:

Sr. Front-End Software Engineer with Security Clearance

Maryland, United States
ClearanceJobs
containerization. Problem-solving mindset and a passion for delivering quality, people-centric solutions. Desired: Data visualization libraries (Chart.js, D3.js, Recharts) Relational databases (MySQL, SQLite, Postgres) Elasticsearch Django Docker, Kubernetes WebSockets or real-time data handling frameworks Redis XP/Agile software development CI/CD Linux (CentOS/RHEL) Cloud Services (S3, EC2, RDS) Software reverse engineering More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Frontend Developer

London, England, United Kingdom
83zero
ceremonies including stand-ups, backlog refinement, and retrospectives Evaluate and improve the frontend architecture, including state management and API integrations Help implement real-time frontend/backend communication using WebSockets Extend and optimise the use of Nx for a frontend monorepo setup Leverage Zustand and TanStack Query for state/data handling, and React Router for navigation Work on real More ❯
Posted:

Full Stack Developer

London, United Kingdom
Native Design
to our Shoreditch studio where the real alchemy happens. Practical: You're comfortable with standard platforms like AWS and Azure, as well as API and communication protocols like REST, WebSockets, and WebRTC, and can deliver high quality under pressure and to tight timescales. Fun: We're not asking for stand-up comedy routines, but a passion for what you do More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Frontend Engineer

Manchester, United Kingdom
Hybrid / WFH Options
Matillion Limited
one cloud platform: AWS, GCP, or Azure. Solid understanding of the Software Development Life Cycle and Agile methodologies (e.g., Kanban, Scrum). Knowledge of backend integration using REST APIs, WebSockets, or GraphQL, with appropriate data structures and stores. Desirable: Experience with CI/CD tools (e.g., Jenkins), Linux scripting, and modern CSS methodologies (e.g., BEM, SASS/SCSS). At More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - F#

London, England, United Kingdom
Kaseya Limited
impact. Excellent communication skills – you’re able to work effectively with both technical and non-technical team members and stakeholders. Bonus Skills and Experience (Nice to Have): Experience with WebSockets or WebRTC for building real-time communication solutions. Background in developing remote control software , such as TeamViewer or similar. Knowledge of video streaming protocols and technologies. Experience in frontend development More ❯
Posted:

Senior Software Engineer - C#

Reading, England, United Kingdom
Kaseya
Proven track record of developing applications in Windows environments. Functional Programming Experience: Previous hands-on experience with F# or other functional programming languages. Real-Time Communication Technologies: Experience with WebSockets and/or WebRTC for building real-time communication solutions. Remote Control Software Development: Familiarity with remote access or control software, such as TeamViewer. Video Streaming: Experience with video streaming More ❯
Posted:

Senior Software Engineer

London, England, United Kingdom
E1 EDF Trading Ltd
Social network you want to login/join with: The EMQA team is part of the front office organisation. The purpose of the team is to develop and run systematic strategies and automated execution solutions through research and technical implementation. More ❯
Posted:

Senior React Developer

London, England, United Kingdom
Validus Risk Management
Validus is looking for a talented engineer at a senior level to join our frontend development team. The frontend team is responsible for the design and development of our web applications implemented in React. The frontend development team is part More ❯
Posted:

Senior Backend Game Engineer

London Area, United Kingdom
Hybrid / WFH Options
Langham Recruitment
need: 5+ years' backend development experience (games industry preferred) Strong coding skills in C++, C#, Go, or Node.js (C C# ideal) Deep understanding of distributed systems, real-time networking (WebSockets, RPCs, REST, gRPC) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with matchmaking, player sessions, anti-cheat systems Database experience across SQL and NoSQL (PostgreSQL, Redis, MongoDB) Hands-on … being handled by Langham Recruitment Ltd. Langham Recruitment Ltd acts as an employment agency and is registered in England and Wales (reg 11525223). Keywords: C++, C#, Go, Node.js, WebSockets, RPCs, REST, gRPC, AWS, Azure, GCP, PostgreSQL, Redis, MongoDB, PlayFab, AccelByte, Nakama More ❯
Posted:

Senior Backend Game Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Langham Recruitment
need: 5+ years' backend development experience (games industry preferred) Strong coding skills in C++, C#, Go, or Node.js (C C# ideal) Deep understanding of distributed systems, real-time networking (WebSockets, RPCs, REST, gRPC) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with matchmaking, player sessions, anti-cheat systems Database experience across SQL and NoSQL (PostgreSQL, Redis, MongoDB) Hands-on … being handled by Langham Recruitment Ltd. Langham Recruitment Ltd acts as an employment agency and is registered in England and Wales (reg 11525223). Keywords: C++, C#, Go, Node.js, WebSockets, RPCs, REST, gRPC, AWS, Azure, GCP, PostgreSQL, Redis, MongoDB, PlayFab, AccelByte, Nakama More ❯
Posted:

Senior Backend Game Engineer

South East London, England, United Kingdom
Hybrid / WFH Options
Langham Recruitment
need: 5+ years' backend development experience (games industry preferred) Strong coding skills in C++, C#, Go, or Node.js (C C# ideal) Deep understanding of distributed systems, real-time networking (WebSockets, RPCs, REST, gRPC) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with matchmaking, player sessions, anti-cheat systems Database experience across SQL and NoSQL (PostgreSQL, Redis, MongoDB) Hands-on … being handled by Langham Recruitment Ltd. Langham Recruitment Ltd acts as an employment agency and is registered in England and Wales (reg 11525223). Keywords: C++, C#, Go, Node.js, WebSockets, RPCs, REST, gRPC, AWS, Azure, GCP, PostgreSQL, Redis, MongoDB, PlayFab, AccelByte, Nakama More ❯
Posted:

Senior Backend Game Engineer

london, south east england, united kingdom
Hybrid / WFH Options
Langham Recruitment
need: 5+ years' backend development experience (games industry preferred) Strong coding skills in C++, C#, Go, or Node.js (C C# ideal) Deep understanding of distributed systems, real-time networking (WebSockets, RPCs, REST, gRPC) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with matchmaking, player sessions, anti-cheat systems Database experience across SQL and NoSQL (PostgreSQL, Redis, MongoDB) Hands-on … being handled by Langham Recruitment Ltd. Langham Recruitment Ltd acts as an employment agency and is registered in England and Wales (reg 11525223). Keywords: C++, C#, Go, Node.js, WebSockets, RPCs, REST, gRPC, AWS, Azure, GCP, PostgreSQL, Redis, MongoDB, PlayFab, AccelByte, Nakama More ❯
Posted:

Senior Backend Game Engineer

slough, south east england, united kingdom
Hybrid / WFH Options
Langham Recruitment
need: 5+ years' backend development experience (games industry preferred) Strong coding skills in C++, C#, Go, or Node.js (C C# ideal) Deep understanding of distributed systems, real-time networking (WebSockets, RPCs, REST, gRPC) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with matchmaking, player sessions, anti-cheat systems Database experience across SQL and NoSQL (PostgreSQL, Redis, MongoDB) Hands-on … being handled by Langham Recruitment Ltd. Langham Recruitment Ltd acts as an employment agency and is registered in England and Wales (reg 11525223). Keywords: C++, C#, Go, Node.js, WebSockets, RPCs, REST, gRPC, AWS, Azure, GCP, PostgreSQL, Redis, MongoDB, PlayFab, AccelByte, Nakama More ❯
Posted:

Senior Backend Game Engineer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Langham Recruitment
need: 5+ years' backend development experience (games industry preferred) Strong coding skills in C++, C#, Go, or Node.js (C C# ideal) Deep understanding of distributed systems, real-time networking (WebSockets, RPCs, REST, gRPC) Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with matchmaking, player sessions, anti-cheat systems Database experience across SQL and NoSQL (PostgreSQL, Redis, MongoDB) Hands-on … being handled by Langham Recruitment Ltd. Langham Recruitment Ltd acts as an employment agency and is registered in England and Wales (reg 11525223). Keywords: C++, C#, Go, Node.js, WebSockets, RPCs, REST, gRPC, AWS, Azure, GCP, PostgreSQL, Redis, MongoDB, PlayFab, AccelByte, Nakama More ❯
Posted:

Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | London, Hybrid | Up to £110,000 + Stocks & Benefits

London Area, United Kingdom
Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Responsibilities for the Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | Shoreditch, Hybrid | Up to £110,000 + Stocks & Benefits APIs & Communication: Strong understanding of REST, GraphQL, WebSockets, and API design best practices Ideally Fullstack TypeScript Engineer (across frontend and backend) Proven experience as a senior software engineer or tech lead, ideally in an early stage startup environment More ❯
Posted:

Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | London, Hybrid | Up to £110,000 + Stocks & Benefits

City of London, London, United Kingdom
Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Responsibilities for the Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | Shoreditch, Hybrid | Up to £110,000 + Stocks & Benefits APIs & Communication: Strong understanding of REST, GraphQL, WebSockets, and API design best practices Ideally Fullstack TypeScript Engineer (across frontend and backend) Proven experience as a senior software engineer or tech lead, ideally in an early stage startup environment More ❯
Posted:

Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | London, Hybrid | Up to £110,

City of London, England, United Kingdom
Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Responsibilities for the Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | Shoreditch, Hybrid | Up to £110,000 + Stocks & Benefits APIs & Communication: Strong understanding of REST, GraphQL, WebSockets, and API design best practices Ideally Fullstack TypeScript Engineer (across frontend and backend) Proven experience as a senior software engineer or tech lead, ideally in an early stage startup environment More ❯
Posted:

Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | London, Hybrid | Up to £110,

South East London, England, United Kingdom
Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Responsibilities for the Founding iOS Tech Lead, SwiftUI | HealthTech, AI, Greenfield Start-up | Shoreditch, Hybrid | Up to £110,000 + Stocks & Benefits APIs & Communication: Strong understanding of REST, GraphQL, WebSockets, and API design best practices Ideally Fullstack TypeScript Engineer (across frontend and backend) Proven experience as a senior software engineer or tech lead, ideally in an early stage startup environment More ❯
Posted:
WebSockets
10th Percentile
£48,750
25th Percentile
£50,625
Median
£82,500
75th Percentile
£120,000
90th Percentile
£142,500