Experience with testing frameworks/packages like JUnit, Mockito, pyfixtures, or locust Understanding of what is under the hood of most modern frameworks (including websockets) Experience with one or more industry standard Cloud Service Providers, including AWS, Azure, or Google Cloud Experience delivering high-quality products in a large-scale More ❯
Familiarity with the React reconciliation process and browser debugging tools Experience in functional programming and Jest for testing Bonus Experience: Knowledge of RxJS, Node.js, WebSockets, Vite/ESBuild, Docker, and more Familiarity with back-end technologies such as C#, Kafka, and Snowflake This opportunity offers not just career growth, but More ❯
Familiarity with the React reconciliation process and browser debugging tools Experience in functional programming and Jest for testing Bonus Experience: Knowledge of RxJS, Node.js, WebSockets, Vite/ESBuild, Docker, and more Familiarity with back-end technologies such as C#, Kafka, and Snowflake This opportunity offers not just career growth, but More ❯
component-based frameworks. Experience building or maintaining back-end APIs (ideally in PHP or a similar backend stack). Good understanding of asynchronous communication (WebSockets, REST, etc.). Comfortable in fast-paced, agile environments with high autonomy. Strong communication and problem-solving skills. Bonus Points For: Experience with graphics, animation More ❯
working on an Agile development team C++ JavaScript, TypeScript, HTML, and CSS React or similar libraries (Vue, Angular) Consuming and creating REST APIs and WebSockets Experience with JavaScript 3D libraries such as Three.js is preferred, but not required CONMD CSSRC Original Posting: May 2, 2025 For U.S. Positions: While subject More ❯
/LESS/CSS-in-JS/Tailwind) Experience testing with Jest/React Testing Library Desirable experience with DevOps tools Desirable experience with Websockets Desirable experience with ES6, Styled Components, Material UI Desirable experience with OpenFin Desirable experience in Finance, specifically trading Familiar with Agile Methodology What You Can More ❯
London, England, United Kingdom Hybrid / WFH Options
Source Technology
experience (Oracle preferred) Comfort with Unix/shell scripting Agile mindset (Scrum, TDD, pair programming) Passionate problem solver & team player? Frontend experience: React, HTML5, Websockets Knowledge of Structured Products (Notes, Warrants, etc.) Location: Hybrid Be part of a team where your code actually matters . Ready to make an impact More ❯
london, south east england, united kingdom Hybrid / WFH Options
Source Technology
experience (Oracle preferred) Comfort with Unix/shell scripting Agile mindset (Scrum, TDD, pair programming) Passionate problem solver & team player? Frontend experience: React, HTML5, Websockets Knowledge of Structured Products (Notes, Warrants, etc.) Location: Hybrid Be part of a team where your code actually matters. Ready to make an impact? Apply More ❯
/CD, and Agile/Scrum experience Nice to Have: Exposure to cross-asset trading environments (FX, Equities, Fixed Income, etc.) Experience with Node.js, WebSockets, or API gateway patterns Testing frameworks (Jasmine, Karma, Cypress) Contract Details: Inside IR35 6 months rolling contract Up to £800 per day Hybrid More ❯
london, south east england, united kingdom Hybrid / WFH Options
VirtueTech Recruitment Group
/CD, and Agile/Scrum experience Nice to Have: Exposure to cross-asset trading environments (FX, Equities, Fixed Income, etc.) Experience with Node.js, WebSockets, or API gateway patterns Testing frameworks (Jasmine, Karma, Cypress) Contract Details: Inside IR35 6 months rolling contract Up to £800 per day Hybrid More ❯
between business, product, and engineering teams. Nice-to-Have : Experience with Event-Driven Architecture using AWS services (SNS, SQS, EventBridge). Knowledge of GraphQL, WebSockets, or real-time data streaming. Exposure to DevOps and observability practices (e.g., Prometheus, Datadog, AWS CloudWatch, OpenTelemetry). Prior experience in leading distributed engineering teams. More ❯
between business, product, and engineering teams. Nice-to-Have : Experience with Event-Driven Architecture using AWS services (SNS, SQS, EventBridge). Knowledge of GraphQL, WebSockets, or real-time data streaming. Exposure to DevOps and observability practices (e.g., Prometheus, Datadog, AWS CloudWatch, OpenTelemetry). Prior experience in leading distributed engineering teams. More ❯
Familiarity with Oracle databases or similar enterprise-level database systems is a plus. Proficient in Chinese is a plus. Nice to have Experience with WebSockets and binary communication protocols, enhancing real-time data transfer capabilities. Strong understanding of scaling high-throughput, real-time applications in a cloud-native or distributed More ❯
shore development teams. Technical Skills: Strong understanding of mobile architecture patterns (MVVM, MVP, etc.) and SOLID principles. Familiarity with RESTful APIs, Graph APIs, JSON, WebSockets, and integration with backend services. Experience with unit testing & automated testing frameworks/tools (XCTest, XCUITest, or third-party libraries etc.). Deep understanding of More ❯
real time trading systems/market data. Experience in working in a regulated financial firm. Experienced in working with multinational global teams. Knowledge about Websockets Archax is an equal opportunities employer and places a high value on diversity and inclusion. We do not discriminate based on any attribute. More ❯
real time trading systems/market data. Experience in working in a regulated financial firm. Experienced in working with multinational global teams. Knowledge about Websockets Archax is an equal opportunities employer and places a high value on diversity and inclusion. We do not discriminate based on any attribute More ❯
snap and bulk content delivery. Technical: A deep hands-on understanding of infrastructure, hosting, cloud, Linux servers, databases, common API technologies and concepts including Websockets, Restful API's, FTP and VPN. Ability to respond positively to pressure and take a flexible approach to the dynamic, fast moving market data field. More ❯
San Diego, California, United States Hybrid / WFH Options
Northrop Grumman
application performance and ensure smooth operation on Windows and Linux. Work with databases (SQLite, PostgreSQL, MySQL) and query data efficiently. Integrate with RESTful APIs, WebSockets, or third-party services. Write clean, maintainable, and modular code following best practices. Debug, test, and maintain applications to ensure reliability and stability. Collaborate with More ❯
off-shore development teams. Technical Skills Strong understanding of mobile architecture patterns (MVVM, MVP) and SOLID principles. Familiarity with RESTful APIs, Graph APIs, JSON, WebSockets, and integration with backend services. Experience with unit testing & automated testing frameworks/tools (XCTest, XCUITest, or third-party libraries). Deep understanding of UI More ❯
experience with prior startup exposure Proficiency in Python and JavaScript; familiarity with frameworks such as FastAPI, Express.js, and React Strong understanding of REST APIs, WebSockets, and webhook integrations Experience with Git and GitHub for collaborative development Knowledge of cloud infrastructure, preferably GCP (Cloud Run, App Engine) Willingness to learn quickly More ❯
experience with prior startup exposure Proficiency in Python and JavaScript; familiarity with frameworks such as FastAPI, Express.js, and React Strong understanding of REST APIs, WebSockets, and webhook integrations Experience with Git and GitHub for collaborative development Knowledge of cloud infrastructure, preferably GCP (Cloud Run, App Engine) Willingness to learn quickly More ❯
SonarQube for code quality testing Preferred Qualifications: Experience with one or more of the following development technologies: Vue.js, Vite, microservices, Bash, wireframes, UX patterns, Websockets, Groovy/Grails Experience with one or more of the following test technologies: Junit5, AssertJ, Mockito, Postman, Vitest, Eslint Experience with one or more of More ❯
SQL-based databases with at least 2-3 years of experience . ✔ Real-time Streaming & Low Latency – Implement real-time communication protocols such as WebSockets to create engaging, live betting and gaming experiences. ✔ Code Quality & CI/CD – Lead the coding standards across the backend team, drive unit testing, automated More ❯
