CrawlJobs Logo

Senior React Engineer

Poland · Job Posted January 29, 2026
Apply Position
Job Link Share

Job Description

N-iX is seeking a talented and experienced Senior React Engineer to join our dynamic development team. As a React Engineer, you will be responsible for developing high-quality web applications using React, TypeScript, Redux, GraphQL, and styled-components. You will have the opportunity to work on exciting projects and collaborate with a team of passionate developers. The client is defining the future of cybersecurity through our XDR platform that automatically prevents, detects, and responds to threats in real-time. Singularity XDR ingests data and leverages our patented AI models to deliver autonomous protection. With a client, organizations gain full transparency into everything happening across the network at machine speed – to defeat every attack, at every stage of the threat lifecycle. We are a values-driven team where names are known, results are rewarded, and friendships are formed. Trust, accountability, relentlessness, ingenuity, and a customer defines the pillars of our collaborative and unified global culture. We're looking for people that will drive team success and collaboration across the project. If you’re enthusiastic about innovative approaches to problem-solving, we would love to speak with you about joining our team!

Job Responsibility

  • Develop robust and scalable web applications using React, TypeScript, Redux, GraphQL, and styled-components
  • Collaborate with the design and product teams to translate wireframes and mockups into functional components
  • Implement responsive designs and ensure cross-browser compatibility
  • Write clean, maintainable, and efficient code using best practices and coding standards
  • Conduct code reviews and provide constructive feedback to improve code quality and maintain consistency
  • Optimize application performance and identify areas for improvement
  • Work closely with backend developers to integrate frontend components with the server-side infrastructure
  • Troubleshoot and debug issues, addressing bugs and performance bottlenecks
  • Stay updated with the latest frontend development trends and technologies, sharing knowledge and insights with the team

Requirements

  • Solid experience (6-7+ years) in developing web applications using React
  • Proficiency in TypeScript for building scalable and type-safe applications
  • Familiarity with GraphQL and its implementation in frontend applications
  • Excellent understanding of web technologies such as HTML5, CSS3, and JavaScript
  • Strong problem-solving and analytical skills, with the ability to quickly identify and resolve issues
  • Good communication skills and the ability to work collaboratively in a team environment
  • Ability to adapt and learn new technologies and frameworks as required

Nice to have

  • Experience with Rest API
  • Accessibility tools

What we offer

  • Flexible working format - remote, office-based or flexible
  • A competitive salary and good compensation package
  • Personalized career growth
  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
  • Active tech communities with regular knowledge sharing
  • Education reimbursement
  • Memorable anniversary presents
  • Corporate events and team buildings
  • Other location-specific benefits

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Senior React Engineer

8 matching positions

Senior React Engineer

We are a fast-growing technology startup seeking a Senior React Engineer to join...
Location
Location
Salary
Salary:
Not provided
cogniphi.com Logo
Cogniphi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5-8 years of experience in front-end development with strong skills in React
  • Constant interaction with other developer teams and design teams to discuss UI ideas
  • Flexibility in using different technologies/platforms
  • Fluent in English – verbally & written
Job Responsibility
Job Responsibility
  • Understand the requirements and document the same
  • Convert UI Wireframes to workable UI Components as per UI Standards/Guidelines and/or integrate with existing UI frameworks
  • Build and test pipelines to show Unit testing, documentation, and publish for production for React application
  • Secure Applications using Firebase/Keycloak
  • Complete documentation to be provided in Markup Language format (with Images where appropriate)
  • Demonstrate evidence of complete E2E testing
  • Version Control/GIT – Manage Conflicts/Branches/Merge
What we offer
What we offer
  • Niche projects in Computer Vision, AI, and Telematics in multiple industry sectors
  • Platform and product implementations
  • Tier -1 technology partners and supportive management ensure individual as well as overall company growth
  • Global Work Culture
  • Medical Insurance
  • Psychological Safe Workplace
Read More
Arrow Right

Senior React Engineer

Our client is a leading technology company focused on transforming the healthcar...
Location
Location
Canada; Latin America
Salary
Salary:
Not provided
g2i.co Logo
G2i Inc.
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years of professional experience in frontend engineering with a strong focus on React
  • Proven track record building high-performance consumer-facing applications
  • Smart TV development experience strongly preferred (Tizen, webOS, Roku, Fire TV, or similar)
  • Deep expertise in: React optimization techniques
  • Memoization strategies
  • Custom hooks & advanced hooks usage
  • Managing complex state (Redux, Zustand, Recoil, Jotai, or similar)
  • React Compiler and modern React performance tooling
  • Strong understanding of performance constraints on TV devices (CPU/memory limits, rendering limitations, remote-control UX)
  • Excellent collaboration and communication skills
Job Responsibility
Job Responsibility
  • Lead development of a React-based Smart TV gaming application, focusing on performance, responsiveness, and fluid UX
  • Ensure best-in-class state management and application structure using React best practices
  • Optimize rendering flows using memoization, hooks, suspense, React Compiler, and other React performance techniques
  • Improve and maintain complex UI interactions, including entry/exit flows, navigation, and animation performance on limited hardware
  • Collaborate with product, design, and backend teams to deliver high-quality experiences across Smart TV platforms
  • Troubleshoot performance bottlenecks and platform-specific constraints on Smart TV environments
  • Contribute to architectural decisions and mentor other engineers as needed
  • Work autonomously in an agile environment, delivering high-impact features quickly and efficiently
What we offer
What we offer
  • Opportunity to convert to full-time after 3-month contract period
  • Highly collaborative team with strong engineering culture
  • Flexible remote work for candidates across Canada and LATAM
  • Fulltime
Read More
Arrow Right

Senior React Engineer

We’re looking for a Senior React Engineer to join our team and help build high-i...
Location
Location
Ukraine
Salary
Salary:
Not provided
honeycombsoft.com Logo
Honeycomb Software
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of experience working with React and TypeScript in production
  • Strong background building applications with React, Next.js, TailwindCSS, and modern UI libraries (preferably shadcn)
  • Solid knowledge of component-based architecture, state management patterns, responsive design, and performance optimization
  • Experience with data visualisation (D3.js, Recharts, Mapbox or similar)
  • Strong collaboration skills and ability to work with design, backend, and product teams
  • Excellent communication, ownership mindset, and the ability to work independently in a distributed team
Job Responsibility
Job Responsibility
  • Develop rich, high-performance web applications using React, Next.js, TypeScript, TailwindCSS, and shadcn UI
  • Build and maintain reusable UI components and scalable front-end architecture for a growing product ecosystem
  • Lead the implementation and evolution of the design system in close collaboration with the product design team
  • Work closely with backend and full-stack engineers to integrate with APIs and platform services built on Supabase and other cloud tools
  • Contribute to and support a React Native mobile application as part of a cross-platform delivery team
  • Balance rapid product iteration with long-term engineering quality, scalability, and maintainability
What we offer
What we offer
  • Opportunity to contribute to a mission-driven product with real global impact
  • Work with a modern technology stack and influence core front-end architecture
  • Collaborative engineering culture with strong ownership and autonomy
  • Full-time remote work within EU, UK, or North America time zones
  • Competitive salary and eligibility for equity participation
  • Supportive environment focused on transparency, learning, and continuous improvement
  • Fulltime
Read More
Arrow Right

Senior React Engineer

A global fintech is hiring a React Developer to join its London engineering team...
Location
Location
United Kingdom , London
Salary
Salary:
80000.00 GBP / Year
weareorbis.com Logo
Orbis Consultants
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Commercial experience with React, TypeScript, and modern state management (Redux or similar)
  • Strong foundations in testing, CI/CD, and accessibility
  • Ability to work both independently and as part of a lean, high-performing team
Job Responsibility
Job Responsibility
  • Develop and optimise modern React/TypeScript web applications
  • Deliver new features while ensuring code quality, testing, and maintainability
  • Contribute to front-end architecture and state management decisions
  • Collaborate across teams in a fast-paced, agile environment
What we offer
What we offer
  • Bonus
  • Hybrid working
  • Career growth opportunities in a fast-scaling engineering team
  • Fulltime
Read More
Arrow Right

Senior React Engineer

We are seeking a highly motivated and skilled Senior-Level React Developer to jo...
Location
Location
Poland
Salary
Salary:
Not provided
n-ix.com Logo
N-iX
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 3 years of experience with React, including state management (e.g., Redux or Context API) and component-based architecture
  • Proficiency in Angular is a plus, with a good understanding of its ecosystem and how it contrasts with React
  • Strong grasp of HTML, CSS, and JavaScript, with the ability to build complex, responsive layouts and interactive features
  • Experience with Test-Driven Development (TDD) and familiarity with testing
  • Understanding of cloud platforms (e.g., AWS, Azure, GCP) and experience with cloud deployment and services.
Job Responsibility
Job Responsibility
  • Design, build, and maintain responsive web applications using React, ensuring high performance, quality, and responsiveness
  • Work closely with UI/UX designers, backend developers, and other stakeholders to deliver intuitive and robust solutions
  • Implement and advocate for Test-Driven Development (TDD) practices, utilizing related testing frameworks/tools to ensure code reliability and quality
  • Identify and resolve performance bottlenecks, and continuously improve the codebase for scalability, performance, and maintainability
  • Utilize modern build tools and automation processes to streamline development workflows, including CI/CD pipelines and automated testing.
What we offer
What we offer
  • Flexible working format - remote, office-based or flexible
  • A competitive salary and good compensation package
  • Personalized career growth
  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
  • Active tech communities with regular knowledge sharing
  • Education reimbursement
  • Memorable anniversary presents
  • Corporate events and team buildings
  • Other location-specific benefits
Read More
Arrow Right

Senior React Engineer (Full-Stack Focus)

We are seeking an experienced Senior React Developer to join a collaborative Agi...
Location
Location
United States , Maple Grove
Salary
Salary:
Not provided
Intellias
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5–7+ years of professional software development experience
  • Strong React development experience (mandatory)
  • Experience with React Redux
  • Strong JavaScript and TypeScript skills
  • Experience building enterprise-scale web applications
  • Strong understanding of front-end architecture and component design
  • Experience working with .NET Core backend environments
  • Strong API development and integration experience
  • Experience consuming and integrating RESTful services
  • SQL experience
Job Responsibility
Job Responsibility
  • Design, develop, and maintain modern web applications using React and TypeScript
  • Build scalable, reusable front-end components and application architecture
  • Collaborate with backend developers working within a .NET Core environment
  • Develop and integrate RESTful APIs across front-end and backend systems
  • Mentor and support developers who are growing their React expertise
  • Help establish front-end engineering standards, best practices, and development patterns
  • Participate in code reviews, technical discussions, and Agile ceremonies
  • Write clean, maintainable, and testable code
  • Support unit testing efforts across front-end and backend integrations
  • Work effectively within projects that may contain evolving requirements and ambiguity
  • Fulltime
Read More
Arrow Right
New

Senior React Native Engineer

As a Senior Mobile React Native Engineer, you will be building and maintaining ...
Location
Location
Ukraine
Salary
Salary:
Not provided
n-ix.com Logo
N-iX
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience: At least 3 years as a React Native developer, with a strong record of delivering high-quality, performant mobile applications for iOS and Android platforms, general experience 4-5+ years
  • Technical skills: Proficiency in React Native, React Hooks, Redux, Nx (or similar tools), and TypeScript, with the ability to build scalable, maintainable codebases
  • App lifecycle expertise: Hands-on experience with integration, testing, code signing, and deploying apps through app stores, along with familiarity with CI/CD pipelines like GitLab, Fastlane, and Expo EAS
  • API knowledge: Experience working with RESTful APIs and GraphQL, as well as integrating third-party SDKs and libraries into mobile applications
  • Monitoring and debugging: Familiarity with tools like Datadog or Firebase Crashlytics to monitor performance and debug production issues
  • Security practices: A strong understanding of mobile app security, including secure authentication (OAuth, JWT), encryption, and data privacy compliance
  • Native module management: Knowledge of creating and managing native modules for iOS and Android to enable seamless interaction between Native and React Native components
  • Testing: Experience with unit testing (or TDD) using Jest and Enzyme, with familiarity in E2E testing tools like Detox or Maestro as a plus
  • Design systems: Experience working with design systems and tools like Storybook to create consistent and reusable components
  • Soft skills: Excellent analytical and communication skills in English (B2+)
Job Responsibility
Job Responsibility
  • Building and maintaining two React Native applications for European and U.S. markets (iOS and Android)
  • Collaborating with domain experts across the organization to deliver mobile-native solutions
  • Integrating RESTful APIs and GraphQL endpoints into mobile applications
  • Integrating third-party SDKs and libraries
  • Creating and managing native modules for iOS and Android
  • Writing unit tests using Jest and Enzyme
  • contributing to E2E test coverage
  • Working with design systems and Storybook to build consistent, reusable components
  • Participating in CI/CD pipeline activities (GitLab, Fastlane, Expo EAS)
  • Monitoring and debugging production issues using tools such as Datadog or Firebase Crashlytics
What we offer
What we offer
  • Flexible working format - remote, office-based or flexible
  • A competitive salary and good compensation package
  • Personalized career growth
  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
  • Active tech communities with regular knowledge sharing
  • Education reimbursement
  • Memorable anniversary presents
  • Corporate events and team buildings
  • Other location-specific benefits
  • Fulltime
Read More
Arrow Right
New

Senior Software Engineer - React

At Dubizzle LABS, an Dubizzle Group company, we are looking to further expand ou...
Location
Location
Pakistan , Karachi
Salary
Salary:
250000.00 - 300000.00 PKR / Year
Dubizzle Labs
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelors in Computer Science or a related field
  • 4+ years of experience in Javascript and client-side technologies
  • 4+ years of production level experience in React
  • Ability to build apps in React
  • Good understanding of at least one MVC frameworks
  • Some understanding of build tools like Webpack and package management tools like Yarn & NPM
  • Excellent communication & interpersonal skills
  • Ability to prioritise tasks and quickly adjust in a rapidly changing environment
Job Responsibility
Job Responsibility
  • Work closely with other teams from the early stages of design all the way through identifying and resolving production issues, and handling the complete SDLC
  • Support a wide range of products focusing on automation, availability and performance, and above all reliability as well as supporting mobile engineers and business intelligence
  • Live true to our ambitions of building an industry-leading platform which is relentlessly focussed on innovation
  • Develop elegant solutions for complex problems
  • Write and maintain exemplary code following dubizzle’s programming practices
  • Gain a detailed understanding of the complete architecture of our product and the position of your product stream in it
  • Work in a mentoring capacity within a peer-programming environment and provide guidance on tasks, irrespective of complexity or scale
  • Fulltime
Read More
Arrow Right