Frontend Engineer (React) - Remote Opportunity in Poland

Role overview SmartRecruiters seeks a Senior Frontend Engineer in Kraków to focus on the Design System and Frontend Platform. The role centers on building web applications that are both scalable and maintainable. Close collaboration with designers and product teams is essential to continually improve user experience across the platform. What you will do Deve…

Fraud Warning: Beware of potential scams posing as legitimate job opportunities. To ensure your application is considered, please apply only through the official Sensor Tower website or directly through our authorized profiles on platforms like LinkedIn, Indeed, BuiltIn, or Hackajob. Sensor Tower will never request payment, credit card, or bank account information during the application process. All official communications will originate from email addresses ending in sensortower.com. Interviews will be conducted via phone or Zoom, and no conversations will shift to external email or text platforms. If you encounter any issues, please reach out to us. Remember to attach your resume when applying.Recruitment Agencies: Sensor Tower does not accept unsolicited resumes from third-party agencies. Please refrain from sending resumes to our job alias, employees, or any other location. Sensor Tower will not cover fees related to unsolicited resumes and will not compensate agencies without a signed agreement.About This Role:Are you excited by the dynamic environment of a startup?Do you have a passion for developing high-impact, rapidly deployed products?Are you committed to mentoring emerging engineers and championing technical excellence?Join us in revolutionizing how insights are derived in digital marketing!Apply today!Role Summary:As a Mid / Senior Frontend Engineer at Sensor Tower, you will play a crucial role in developing top-notch products and features that enhance our user experience. Our flat organizational structure allows for your input to significantly influence product design and development.

Join ClickUp as a Senior Frontend Engineer and take your career to the next level! As a key member of our dynamic team, you will play a crucial role in designing and implementing innovative front-end solutions that enhance user experience. Your expertise will help us deliver top-notch features for our users while collaborating closely with cross-functional teams.

Senior Frontend EngineerLocation: Remote / WarsawEmployment Type: UoP / B2BSalary: 20,000 - 25,000 + VAT per month (based on experience for B2B)At PhotoAiD, we are a pioneering technology company specializing in biometric photography. Our innovative application allows users worldwide to easily capture document photos using their smartphones, revolutionizing the way people manage their documentation needs.PhotoAiD by the Numbers1 in 1000 people has taken a photo with us, and this is just the beginning!Shipping points in over 100 countries across 4 continents!Join a team of 100+ members dedicated to fostering a great work environment.Engage in 10 A/B tests weekly as we thrive on data-driven decisions.Support for over 10,000 document types, from fishing licenses to Mozambican passports.Utilized 10 million training photos to enhance our artificial intelligence capabilities.Why Join Us?Our technology significantly improves the lives of millions, enabling document photo capture from the comfort of home.We are scaling globally, from Mozambican passports to fishing licenses in Scandinavia.We prioritize high-quality engineering; our systems must be fast, secure, and reliable.Together, we cultivate a culture of collaboration, feedback, and mutual respect.Your ResponsibilitiesWeb DevelopmentBuild and maintain production applications for biometric photos and printing machinery.Implement advanced photo editing features (cropping, rotation, format conversion).Create responsive, touch-first interfaces optimized for kiosks.Implement virtual scrolling for large image galleries.Manage complex state handling in multi-step order flows.Mobile DevelopmentDevelop features for capturing and processing images in our React Native + Expo application.Integrate with native camera APIs and AI-based image validation.Architecture and QualityDesign modular architecture based on features.Write unit, integration, and E2E tests.Implement error boundaries and error handling.Work with OpenAPI schemas for type-safe backend integration.Participate in code reviews and maintain high code quality standards.

Join Fairmarkit as a Senior Frontend Engineer and be a key player in revolutionizing the procurement process. You will design and implement user-centric web applications that elevate the user experience. Collaborate with cross-functional teams to create scalable and maintainable solutions while ensuring high performance and responsiveness.

Join HelloFresh in the vibrant city of Warsaw as part of our HelloTech team, a pivotal technology hub comprising over 1000 professionals dedicated to developing the digital products that enhance our comprehensive food experience. From meal kits to gourmet offerings, HelloTech designs the platforms that deliver tailored food solutions to millions of customers each month. Our direct-to-consumer subscription model is intricately linked to technology, influencing every aspect from user-friendly applications and personalized services to pricing, forecasting, and advanced supply chain management, with a commitment to minimizing food waste. While our brands cater to diverse customer needs, they are interconnected through shared platforms, data, and operational excellence powered by HelloTech. HelloTech operates through autonomous, cross-functional teams, each managing specific products or domains comprehensively. By collaborating with our Warsaw office, you will contribute to the development of scalable, data-driven products that enhance how customers discover, order, and enjoy HelloFresh’s offerings, both now and in the future. About the Role: What's Inside the Box This position requires providing high-level technical expertise within the Activation Mealkits project group. The focus is on enhancing the end-to-end activation journey for various meal kit brands, covering the technical flow from landing pages to checkout. This high-impact project encourages innovation through experimentation, where your technical decisions will directly impact conversion rates and revenue generation. Your role will involve supporting a dynamic and adaptable setup utilized across multiple markets and languages. The technical scope includes not only classic frontend engineering with React and TypeScript but also collaboration across experimentation frameworks, CMS integrations, caching systems, and selected backend services. This is a unique opportunity to influence systems that serve millions of users in 16 different countries. What You’ll Do: The Recipe Technical Architecture: Define the technical framework and engineering standards for landing pages, funnel stages, and checkout experiences using React, TypeScript, and contemporary technologies. Cross-Functional Coordination: Lead complex technical initiatives from inception to rollout, coordinating efforts across frontend, CMS, experimentation, and backend layers. System Evolution: Develop and enhance systems that facilitate experimentation.

Join the innovative team at nordsec as a Senior Frontend Engineer specializing in React within our Network Department. In this role, you will leverage your expertise to create dynamic and responsive user interfaces that enhance our network solutions. Collaborate with cross-functional teams to deliver high-quality software that meets our users' needs.

Join ClickUp as a Staff Frontend Engineer and play a crucial role in shaping our innovative software solutions. You will be responsible for developing and optimizing user interfaces that enhance user experience and drive engagement. Collaborate with a talented team of engineers, designers, and product managers to deliver top-notch features that meet our users' needs.

HelloFresh is seeking a Senior Frontend Engineer to join the Consumer Alliance team in Warszawa, Masovian Voivodeship, Poland. This position centers on developing and enhancing web applications that reach a broad customer base. What you will do Shape the user experience on HelloFresh’s platform through thoughtful frontend development. Collaborate with teammates to deliver new features and ongoing improvements. Address technical challenges and help design solutions for a diverse set of users. Share ideas and feedback in a collaborative environment. Requirements Senior-level experience in building web applications. Enjoys teamwork and values creative approaches. Comfortable tackling complex problems.

Join Box as a Senior Frontend Software Engineer in Warsaw, Poland, and play a pivotal role in shaping the future of content management. As part of our dynamic team, you will craft and maintain engaging user interfaces that enhance the experience for over 115,000 organizations globally. Your expertise will help drive collaboration and streamline workflows through innovative, AI-powered solutions. You'll be responsible for documenting software specifications, participating in agile ceremonies, and fostering a collaborative work culture. This is an exciting opportunity to be at the forefront of a technological revolution in the content cloud space.

Join our dynamic team as a Senior Frontend Developer at evolution in Warsaw! We are looking for a talented individual with a passion for building responsive and high-performance web applications. You will collaborate with cross-functional teams to deliver exceptional user experiences and implement innovative solutions.

Veeam Software, the leading global provider of data resilience solutions, empowers businesses to maintain control over their data anytime, anywhere. We specialize in data backup, recovery, portability, security, and intelligence, supporting over 550,000 customers globally who trust us to keep their operations running smoothly. Join our mission as we innovate and create impactful solutions for some of the world's largest brands. Embrace the future of data resilience and move forward with us boldly.About the RoleWe are seeking a talented and experienced Frontend Engineer to become part of the Veeam Data Cloud (VDC) engineering team. In this role, you will collaborate with a global team to develop next-generation data protection services aimed at enhancing data resilience for our customers.This is a unique opportunity to engage in greenfield projects, creating features from the ground up that will be deployed and utilized globally.What You’ll DoDesign and develop highly responsive user interface components for web applications using React.Test and troubleshoot web applications. Design and maintain unit testing and end-to-end testing frameworks.Create reusable components and front-end libraries for future use.Collaborate with other engineering teams to discuss requirements, design, and implementation.What You’ll Bring5+ years of experience in developing enterprise solutions using React, JavaScript, HTML, and CSS.Proficiency in TypeScript.Strong understanding of computer science fundamentals, including data structures and algorithms.A passion for code quality, extensibility, coding standards, testing, and automation.A results-driven mindset with a focus on impact and outcomes.

Join our innovative team at dev2 as a Frontend Software Engineer, where you'll play a crucial role in creating cutting-edge web applications. Your expertise will help us deliver exceptional user experiences and drive our projects to success.

Join our dynamic team at Shiji Group as a Senior Frontend Developer, where you will play a pivotal role in crafting and enhancing user interfaces for our innovative software products. We are looking for a talented individual who is passionate about frontend technologies and has a keen eye for design and functionality.Your responsibilities will include collaborating with cross-functional teams to define, design, and ship new features, ensuring the performance and quality of our applications, and troubleshooting and debugging complex issues.

About FreshaFresha stands as the premier marketplace platform for beauty and wellness, embraced by millions of consumers and businesses around the globe. With over 130,000 businesses and 450,000 stylists leveraging our services, we have successfully processed more than one billion appointments to date.Headquartered in London, UK, Fresha operates 15 global offices spanning North America, EMEA, and APAC.Our platform empowers consumers to discover, book, and pay for beauty and wellness appointments with local providers. Simultaneously, businesses and professionals in the beauty and wellness sector utilize our all-in-one platform to streamline their operations through an intuitive software suite and innovative financial technology solutions.Fresha’s ecosystem equips merchants with everything necessary for seamless business operations, including appointment scheduling, point-of-sale systems, customer record management, marketing automation, loyalty programs, inventory management, and team oversight.Our consumer marketplace amplifies revenue opportunities for partner businesses by harnessing the power of online booking and automated marketing via mobile applications and advanced integrations with major technology platforms such as Instagram, Facebook, and Google.Role OverviewAt Fresha, we view AI as a catalyst for enhancing feature delivery rather than merely a coding assistant. We equip every engineer with state-of-the-art tools (Claude, GitHub Copilot, Cursor) to minimize technical toil, allowing you to concentrate on delivering impactful product features. We value engineers adept at utilizing these tools to generate momentum within our six-week cycles, expediting the transition from concept to code while ensuring robust technical judgment to verify, secure, and take ownership of the final user experience.In light of our ambitious growth trajectory, we are seeking an exceptional Senior Frontend Engineer to join our global team.You will report directly to the Team Lead and collaborate within a cross-functional product team, taking responsibility for designing and developing applications while coordinating with other team members working on different aspects of our projects.

About Mesh SystemsMesh Systems: The Connected Product Innovators. We are a trusted Microsoft Partner dedicated to empowering clients to build, scale, and derive maximum value from their digital products. Our expertise lies in developing scalable, cloud-based systems capable of managing vast data volumes for clients around the globe.Our vision is to integrate IoT with state-of-the-art Artificial Intelligence, paving the way for innovative, future-proof projects. We are in search of a talented Senior Frontend Engineer to collaborate with our engineering teams and help redefine the landscape of connected technologies.

Join trimetis as we embark on an exciting journey to completely transform the internal application of one of Europe’s leading transport services companies. With a focus on innovation, we are reimagining their customer care tool, a web application that enhances operational efficiency and user experience. Collaborating across diverse teams, we aim to revolutionize the client's business from the inside out.Industry: Payment Solutions, ElectromobilityProduct: Customer Care Tool (Web Application)Project Methodology: AgileContract Type: B2B or Employment ContractWork Arrangement: Full-time, 100% Remote from PolandStart Date: February/March 2026

We are seeking an experienced Lead Software Engineer to spearhead our frontend development initiatives at dev2. In this pivotal role, you will utilize your expertise in modern web technologies to design and implement scalable applications that enhance user experience. You will collaborate closely with cross-functional teams to deliver high-quality software solutions that meet both internal and external client needs.Key Responsibilities:Lead the development of user-centric web applications using JavaScript frameworks.Mentor junior developers and foster a culture of learning and innovation.Drive architectural decisions and ensure best practices in frontend development.Collaborate with UX/UI designers to implement intuitive interfaces.

Join Netguru, a leader in the digital commerce landscape, as we partner with renowned brands to elevate their B2B solutions, marketplaces, and retail ecosystems. Since our inception in 2008, we have empowered businesses with state-of-the-art technology, AI-driven personalization, and top-notch engineering and design teams. As a certified B Corporation®, we take pride in our collaborations with major brands such as IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted.How does freelancing work at Netguru?As a freelancer at Netguru, you have the flexibility to choose your working hours, location, and project tasks. We align your skills with suitable projects, providing you access to diverse opportunities across various industries. This not only enhances your experience but also allows you to broaden your skill set.Moreover, Netguru freelancers can engage in full-time collaborations, truly becoming integral members of our team. Are you ready to make a significant impact? Join us, and let’s create stunning software together.Currently, we are seeking a Senior Frontend Developer to join our team.