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RxJS Jobs

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RxJS
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🔥 Senior Full-Stack Developer (Angular/ExpressJS)
Posted 5 days ago

📍 South America, the Balkan Region

🧭 Full-Time

💸 42900.0 - 50750.0 USD per year

🔍 Software Development

🏢 Company: Worldly👥 11-50

  • Proven experience in designing, developing, and maintaining large-scale Angular applications (version 8 or later).
  • Strong proficiency in TypeScript, HTML5, CSS3, and modern JavaScript (ES6+).
  • Experience with NGRX for state management and RxJS for reactive programming.
  • Experience with ExpressJS and Node.js for building RESTful APIs and microservices.
  • Proficient in working with relational databases (e.g., PostgreSQL, MySQL) and document-based databases (e.g., MongoDB).
  • Design and develop complex, scalable, and high-performance Angular applications using the latest version of Angular and related technologies.
  • Build and maintain RESTful APIs and microservices using ExpressJS and Node.js.
  • Integrate the front-end with back-end systems, ensuring seamless data flow and communication.
  • Design and develop database schemas for relational (e.g., PostgreSQL, MySQL) and document-based (e.g., MongoDB) databases.
  • Implement best practices for code structure, maintainability, performance optimization, and security.
  • Utilize NGRX for state management and RxJS for reactive programming within the Angular application.
  • Ensure cross-browser compatibility and responsive design for optimal user experience on various devices.
  • Write clean, well-documented, and testable code using industry-standard coding practices.
  • Participate in code reviews and provide guidance to junior developers.
  • Stay up-to-date with the latest trends, best practices, and emerging technologies in both front-end and back-end development.

Backend DevelopmentNode.jsPostgreSQLExpress.jsFrontend DevelopmentFull Stack DevelopmentGitHTMLCSSJavascriptMongoDBMySQLRxJSTypeScriptAngularREST APIRESTful APIs

Posted 5 days ago
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🔥 Front End Developer (Angular)
Posted 11 days ago

📍 India

🧭 Full-Time

🏢 Company: Weekday AI👥 1-10💰 over 3 years agoE-CommerceFashion

  • 2+ years of experience in frontend development with a strong focus on Angular.
  • Proven experience in building scalable, high-performance web applications.
  • Strong understanding of data structures and algorithms (DSA).
  • Hands-on experience with HTML, CSS, JavaScript (ES6+), and modern JavaScript frameworks (RxJS, NgRx).
  • Familiarity with RESTful API integration.
  • Experience with component-based architecture and state management in Angular applications.
  • Design, develop, and optimize responsive, high-performance web applications using Angular.
  • Implement reusable components and ensure efficient state management in Angular applications.
  • Work closely with backend teams to integrate RESTful APIs and ensure seamless data flow.
  • Optimize web applications for speed, scalability, and responsiveness, minimizing load times and improving efficiency.
  • Write unit and integration tests to ensure application stability and reliability.
  • Work cross-functionally with Product, Design, and Backend teams to align development with business goals.

DockerEs6Frontend DevelopmentGitHTMLCSSJavascriptRxJSAlgorithmsData StructuresAngularREST APICommunication SkillsCollaborationCI/CDProblem SolvingAgile methodologiesRESTful APIs

Posted 11 days ago
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🔥 Developer / Programmer Analyst 3 (ASP.NET & Angular)
Posted 11 days ago

📍 United States

🧭 Contract

🏢 Company: Information & Technology Management

  • Proficiency in ASP.NET Core and C#.
  • Understanding of front-end technologies such as HTML, CSS, JavaScript, and frameworks like Angular or React
  • Experience with SQL Server and database design.
  • Strong knowledge of unit testing frameworks and tools (e.g., xUnit,NUnit, Selenium)
  • Bootstrap, Blazor and jQuery
  • Experience with Angular 18
  • Knowledge of RESTful APIs and web services.
  • Understanding of data integration and ETL processes.
  • Understanding of Azure SQL Database and its features.
  • Familiarity with Angular CLI, Angular Material, and RxJS
  • Experience with cloud platforms like Azure.
  • Develop, maintain, and enhance web applications using ASP.NET and Angular 18.
  • Implement responsive behavior in legacy ASP.NET applications.
  • Design, develop, and implement solutions using Microsoft technologies, including C#, Visual Studio, and SQL Server (SSMS).
  • Develop and maintain Web APIs using .NET Core with a strong understanding of RESTful APIs.
  • Design and maintain database schemas.
  • Write and optimize SQL queries and stored procedures.
  • Utilize Entity Framework Core for ORM-based database operations.
  • Work with TypeScript, CSS, JavaScript, jQuery, Bootstrap, and Blazor to create dynamic and responsive user interfaces.
  • Write integration tests for APIs and front-end applications.
  • Develop unit tests to ensure code quality and reliability.
  • Collaborate with cross-functional teams to define, design, and ship new features.
  • Ensure effective communication and teamwork to meet project goals.
  • Optimize application performance to ensure smooth and efficient operation.
  • Implement scalable solutions to handle increasing user loads and data volumes.
  • Troubleshoot and resolve application issues and bugs promptly.
  • Provide ongoing support and maintenance to ensure application stability.

SQLASP.NETGitHTMLCSSJavascriptjQueryRxJSTypeScriptC#.NET coreAngularRESTful APIs

Posted 11 days ago
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🔥 Mid level Full-stack Engineer
Posted 20 days ago

📍 LATAM

🧭 Full-Time

🔍 Software Development

🏢 Company: South Geeks👥 101-250Web DevelopmentSoftware EngineeringEnterprise SoftwareSoftware

  • 4+ years of software engineering experience building backend systems
  • Preferred experience developing marketplace solutions and integrating with e- commerce platforms such as Shopify and Lightspeed.
  • Experience in designing and developing services with APIs that are efficient, well-tested, and easy to maintain
  • Proficient in React Native with a strong understanding of JavaScript and its nuances, including ES6+ syntax.
  • Proficient in Node.js and Typescript with a solid understanding of asynchronous programming, server-side logic, and the fundamentals of Node.js frameworks.
  • Experience with reactive programming paradigms, preferably using RxJS or similar libraries, to handle asynchronous data streams effectively.
  • Experience with modern cloud technologies such as Docker, Kubernetes, AWS suite
  • Experience with Python/Django development (+1 year)
  • Knowledge of full software development life cycle best practices, including coding standards, code reviews, source control management, continuous deployments, testing and operations
  • Lead design and implementation of technical solutions for various initiatives, ensuring the system design meets scalability, performance, and security requirements
  • Collaborate with product designers, product managers, and other software engineers to deliver customer-facing features with high-quality
  • Make critical engineering decisions considering risks, trade-offs, and alternative solutions
  • Drive continuous improvement in our software and development process within an agile development team
  • Write automated unit and integration test as appropriate to support our continuous integration pipelines, with a focus on DevOps and robust automation
  • Spearhead investigations, production issues, and bugs
  • Identify tech debt before it becomes an issue and work with the team to prioritize it appropriately
  • Mentor other engineers and improve engineering processes to increase team effectiveness

AWSBackend DevelopmentDockerNode.jsPythonSoftware DevelopmentSQLAgileDjangoEs6Full Stack DevelopmentJavascriptKubernetesReact NativeRxJSTypeScriptREST APICI/CDDevOps

Posted 20 days ago
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🔥 Senior JavaScript Game Developer
Posted about 1 month ago

📍 European Union

🧭 Full-Time

🔍 IGaming

🏢 Company: Playson👥 251-500Media and EntertainmentContentInformation TechnologyOnline Games

  • Superb understanding of asynchronous single-threaded Javascript environment, Canvas/WebGL, DOM events, browser API
  • Advanced knowledge of code patterns and anti-patterns aiming specifics of Javascript and React
  • Successful in building business event-driven applications from scratch using Angular > 2 (or similar asynchronous frameworks)  + Rx.js asynchronous
  • Solid understanding of Node.js
  • Experience in the development of sustainable production solution
  • Be familiar with micro front-ends (module federation) built in Webpack
  • Building UI components in isolation
  • Follow Promo Features product life-cycle from development to support
  • Proactively participate in architecture implementation with architects' team
  • Handle complex engineering problems and provide field support with creative and rapid solutions
  • Deal with Javascript profiler using embedded browser dev tools
  • Digging into vendors' source codes and applying fixes
  • Analyzing application performance and applying selective optimizations

Node.jsAgileDesign PatternsEs6Frontend DevelopmentGame DevelopmentGitHTMLCSSJavascriptReact.jsRxJSUI DesignAngularREST APIJSON

Posted about 1 month ago
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🔥 Senior Front-end Developer (Angular.js)
Posted about 1 month ago

📍 United Arab Emirates, Saudi Arabia, Egypt, Oman, Pakistan

🧭 Contract

🔍 Banking

🏢 Company: Xenon7

  • Bachelor's degree in computer science or similar, advanced degree preferred with outstanding record of academic achievement
  • 5+ years history of total frontend development experience
  • Well-Versed , hands-on experience in Angular framework (DI, routing Reactive , template driven ,animation,AOT,content projection, lazy loading , guards, resolvers,state management ,Rx JS)
  • Excellent Knowledge of HTML, CSS3, SVG and deep internals of raw JavaScript
  • Excellent Knowledge of responsive design frontend frameworks (bootstrap, foundation, etc...)
  • Knowledge of Node JS
  • Knowledge of frontend design patterns (SOLID, micro frontend,modular federation, Scalable Component)
  • Excellent Knowledge of the ES6+
  • Experience in engineering practices and cleaning coding such as UML ,refactoring , test-driven development , continuous integration, building highly scalable applications and application security
  • Hands-on experience in component testing using well-known frameworks (Cypress,Karma,Jasmine)
  • Experience in agile development methodologies
  • Knowledge of cloud-native development (CI/CD,docker,NGINX,webpacks,environment configuration , Firebase, Azure Devops,REST)
  • Shaping and Implementing technology/business solutions to contribute to client organization's competitive differentiation
  • Uses Various software development technologies to rapidly develop creative and efficient solutions that enhance client organization's technology stack
  • Collaborate with other team members to implement user stories, write tests , and continuously deliver new/improved product functionality
  • Communicate with internaI IT teams to resolve technical dependencies during implementations
  • Troubleshoot and resolve complex technical issues ,providing timely support and ensuring minimal downtime
  • Participate in all phases of the software development cycle , including analysis, design, implementation, testing, deployment and support
  • Conduct code review to ensure adherence to best practices and coding standards
  • Stay updated with the latest trends in digital banking to implement innovative solutions

DockerNode.jsAgileCloud ComputingCypressEs6Frontend DevelopmentHTMLCSSJavascriptRxJSFirebaseAngularREST APICI/CD

Posted about 1 month ago
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🔥 Lead Frontend Engineer
Posted about 1 month ago

📍 AZ, CA, CO, CT, FL, GA, HI, IL, MA, MI, MN, MT, NC, NJ, NV, NY, OH, OK, OR, PA, TX, UT, WA, WI

🧭 Full-Time

🔍 Payments Operations

🏢 Company: Modern Treasury👥 101-250💰 $50,000,000 Series C about 3 years agoBankingPaymentsFinanceFinTech

  • 10+ years of experience in front-end and UI engineering roles, including 3+ years in a technical leadership capacity.
  • Proven success in scaling front-end infrastructure and delivering enterprise SaaS products at scale.
  • A track record of product-oriented thinking, with the ability to influence decisions based on user impact, speed, and quality.
  • Deep expertise with modern front-end frameworks (e.g. React, Angular) and associated technology stacks & tools
  • Strong background in component-based development, design systems, and front-end architecture patterns.
  • Proficiency in building scalable UI infrastructure and optimizing developer workflows (CI/CD, performance tooling, etc.).
  • Solid understanding of user experience design principles and ability to partner with design teams to deliver exceptional products.
  • A product-driven mindset – deeply curious about customer problems and driven to deliver real, measurable value.
  • Strong ability to collaborate cross-functionally and influence without authority across Engineering, Product, and Design teams.
  • Experience leading teams, mentoring engineers, and fostering a culture of ownership, collaboration, and growth.
  • Excellent problem-solving skills with a focus on balancing speed, scalability, and user impact.
  • Drive the Front-End Vision: Own the front-end and UI technical vision, ensuring infrastructure and architecture align with product priorities and business goals.
  • Product Partnership: Actively collaborate with Product Managers, Designers, and other Engineers to translate product requirements into scalable, high-performing front-end solutions.
  • Hands-On Execution: Lead by example by jumping into critical product development efforts to unblock teams, deliver value, and drive projects forward.
  • Build and optimize scalable front-end infrastructure to support enterprise-grade applications and rapid feature development.
  • Drive improvements in DevEx by optimizing tooling, build pipelines, and processes to reduce friction and enable fast, reliable delivery.
  • Proactively identify technical bottlenecks and implement solutions that balance speed and quality.
  • Advocate for and implement best practices in UI/UX development to align product execution with user needs and market expectations.
  • Serve as a strong voice for the in-application user within engineering, ensuring product decisions prioritize usability, performance, and customer value.
  • Mentor and guide front-end engineers to improve skills, grow technical capabilities, and deepen product awareness.
  • Foster a collaborative, product-driven engineering culture where teams are empowered to ship impactful solutions efficiently.
  • Act as a thought leader across the organization to bridge the gap between engineering execution and product strategy.

LeadershipAgileDesign PatternsFrontend DevelopmentHTMLCSSJavascriptProduct ManagementReact.jsRxJSTypeScriptUI DesignUser Experience DesignCross-functional Team LeadershipProduct DevelopmentAngularReduxReactCommunication SkillsCI/CDProblem SolvingRESTful APIsMentoringDevOpsJSONNodeJS

Posted about 1 month ago
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🔥 Senior React Developer (Product AI)
Posted about 1 month ago

📍 Cyprus, Malta, the USA, Armenia, Georgia, Kazakhstan, Montenegro, Poland, Latvia, Serbia, Spain, Portugal, UAE, Israel, Turkey, Thailand, Indonesia, Japan, Hong Kong, Australia

🧭 Full-Time

🔍 Software Development

🏢 Company: Social Discovery Group👥 501-1000Venture CapitalFinanceInformation Technology

  • Strong knowledge of OOP principles, design patterns, and SOLID principles.
  • Expertise in React, RxJS, WebSocket, and Redux Toolkit.
  • Solid understanding of CSS and experience with CSS-in-JS frameworks (e.g., Linaria, styled components), Experience of developing and maintaining design systems/UI-kits.
  • Experience with CSS/JS animations.
  • Developing new features and functionality to enhance the product.
  • Refactoring and optimizing the current codebase to improve performance and maintainability.

Design PatternsFrontend DevelopmentCSSJavascriptReact.jsRxJS

Posted about 1 month ago
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🔥 Senior Front-end Engineer 前端开发工程师
Posted about 2 months ago

📍 APAC

🧭 Full-Time

🔍 Software Development

🏢 Company: Windranger Labs

  • 2-5 years of experience in front-end development
  • Proficiency in web3js interface development
  • Ability to design and develop front-end systems while considering both engineering quality and development efficiency
  • Familiarity with at least 2 mainstream front-end frameworks (such as React, Vue, Redux, Ember.js, RxJS) and their development processes
  • Ability to accurately and responsively replicate design specifications
  • Experience in solving mobile compatibility issues
  • Experience with agile development methodologies and the ability to work in a fast-paced environment
  • Attention to detail and the ability to write clean, well-tested code
  • Excellent problem-solving and troubleshooting skills
  • Develop and maintain the front-end of our ETH Layer 2 network
  • Collaborate with the Backend and Product teams to ensure seamless integration of the frontend with the backend
  • Write clean, efficient, and well-documented code
  • Ensure the best possible performance, quality, and responsiveness of the application
  • Stay up-to-date with emerging trends and best practices in front-end development
  • Participate in code reviews and contribute to the development of team standards and best practices
  • Continuously identify and implement ways to improve the user experience
  • Troubleshoot and debug issues that arise

AgileEthereumFrontend DevelopmentHTMLCSSJavascriptRxJSVue.JsReduxReactWeb3.js

Posted about 2 months ago
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🔥 Senior Frontend Developer with Angular and Spartacus
Posted about 2 months ago

📍 Poland

🧭 Full-Time

💸 15000.0 - 26900.0 PLN per month

🔍 Software Development

🏢 Company: Netguru👥 501-1000Product DesignUX DesignWeb DevelopmentAppsMobileSoftware

  • 5 years of experience with Angular (v8+), including RxJS, NgRx (or other state management libraries), lazy loading, and dependency injection.
  • Strong understanding of Angular SSR (Server-Side Rendering) and Angular Universal, as Spartacus supports SSR.
  • Hands-on experience with Spartacus (SAP Commerce Cloud Storefront), including customizing and extending Spartacus components.
  • Are familiar with Spartacus Core Libraries, theming, and CMS-driven content.
  • Are able to modify Spartacus routing, extend facades/services, and integrate custom UI components.
NOT STATED

Node.jsFrontend DevelopmentGitHTMLCSSJavascriptRxJSTypeScriptUI DesignAngularCI/CDProblem SolvingAgile methodologiesRESTful APIsJSON

Posted about 2 months ago
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