Senior Front-End Engineer (Micro-Frontends) (m/f/n)

🏢 Summary: Mid-level Front-end Software Engineer role focused on building scalable, high-traffic web solutions for a large e-commerce platform. The position involves delivering medium to high complexity features, translating product and UX requirements into maintainable code, and contributing to front-end architecture decisions. This is a contractor role with high ownership in a product-driven environment. 🗂️ Requirements: Minimum 10+ years of experience as a Front-end Software Engineer, Strong knowledge of HTML, Strong knowledge of CSS, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Practical experience with React, Ability to develop scalable and maintainable front-end architecture, Experience ensuring code quality, performance, and accessibility, Experience working in cross-functional product teams, Ability to work independently and take technical ownership 📃 Skills: HTML, CSS, JavaScript, TypeScript, React, Accessibility, Performance, Architecture 🏢 Description: For our Client – one of the largest and most recognizable e-commerce platforms in Central Europe, serving millions of users daily and building large-scale, high-traffic digital products – we are currently looking for a Front-end Software Engineer (Mid-level) to join a product-driven environment focused on delivering high-quality, scalable web solutions. 📍 Warsaw - once per 2-3 weeks in the office only 🎯 Your Responsibilities Deliver medium to high complexity front-end features independently Translate product and UX requirements into clean, scalable, maintainable code Collaborate closely with Product Managers and UX/UI Designers Ensure high standards of code quality, performance, and accessibility Take ownership of delivered solutions in a contractor model (high autonomy expected) Contribute to team-level technical decisions and front-end architecture discussions Identify and address front-end technical debt 🔧 Required Experience & Skills Min 10 + years of experiance as a Front-end Software Engineer Solid understanding of HTML, CSS, JavaScript, and TypeScript fundamentals Practical experience with React (preferably with TypeScript) Ability to work independently and take accountability for outcomes Experience collaborating in cross-functional teams ⭐ Nice to Have Experience working on large-scale web applications Experience with cross-team front-end integrations Familiarity with design systems and component libraries Interest in scalable testing practices 🌍 What You Can Expect Long-term cooperation in a contractor model High-impact product environment with millions of end users Real ownership over features and technical solutions Modern engineering standards and strong product culture Occasional on-site workshops and team events 📍 Please note that we will contact only selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)

🏢 Summary: Mid-level Front-end Software Engineer role focused on building scalable, high-quality web features for a large-scale, high-traffic e-commerce platform. The position involves translating product and UX requirements into maintainable React-based solutions while ensuring performance, accessibility, and code quality. The role offers high autonomy and ownership in a contractor model within a product-driven environment. 🗂️ Requirements: 10+ years of experience as Front-end Software Engineer, Strong knowledge of HTML, Strong knowledge of CSS, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Practical experience with React, Ability to deliver medium to high complexity front-end features independently, Experience working in cross-functional teams, Ability to ensure code quality, performance and accessibility standards 📃 Skills: HTML, CSS, JavaScript, TypeScript, React, Accessibility, Performance 🏢 Description: For our Client – one of the largest and most recognizable e-commerce platforms in Central Europe, serving millions of users daily and building large-scale, high-traffic digital products – we are currently looking for a Front-end Software Engineer (Mid-level) to join a product-driven environment focused on delivering high-quality, scalable web solutions. 📍 Warsaw - once per 2-3 weeks in the office only 🎯 Your Responsibilities Deliver medium to high complexity front-end features independently Translate product and UX requirements into clean, scalable, maintainable code Collaborate closely with Product Managers and UX/UI Designers Ensure high standards of code quality, performance, and accessibility Take ownership of delivered solutions in a contractor model (high autonomy expected) Contribute to team-level technical decisions and front-end architecture discussions Identify and address front-end technical debt 🔧 Required Experience & Skills Min 10 + years of experiance as a Front-end Software Engineer Solid understanding of HTML, CSS, JavaScript, and TypeScript fundamentals Practical experience with React (preferably with TypeScript) Ability to work independently and take accountability for outcomes Experience collaborating in cross-functional teams ⭐ Nice to Have Experience working on large-scale web applications Experience with cross-team front-end integrations Familiarity with design systems and component libraries Interest in scalable testing practices 🌍 What You Can Expect Long-term cooperation in a contractor model High-impact product environment with millions of end users Real ownership over features and technical solutions Modern engineering standards and strong product culture Occasional on-site workshops and team events 📍 Please note that we will contact only selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)

🏢 Summary: Offer for a Mid+ Front-End Developer to build and enhance a global digital platform serving as a central hub for merchants, working 100% on-site in Warsaw under a B2B contract. The role focuses on developing scalable front-end solutions in an Agile Scrum environment, integrating with backend services, and ensuring high application quality through testing and code reviews. The position includes collaboration with cross-functional teams and contributing to continuous improvement of development standards. 🗂️ Requirements: 4-5+ years experience as Front-End Developer, Strong expertise in JavaScript, Strong expertise in TypeScript, Strong expertise in Angular, Strong knowledge of HTML5, Strong knowledge of SCSS, Experience with Git, Experience with GitLab, Experience integrating front-end with APIs, Experience writing unit tests, Experience writing end-to-end tests, Ability to debug complex issues 📃 Skills: JavaScript, TypeScript, Angular, HTML5, SCSS, Git, GitLab, APIs, UnitTesting, E2ETesting, Agile, Scrum 🏢 Description: Start Date: ASAP / Within 1 Month / Flexible Work Model: 100% on site, office in Warsaw Contract Type: 140-170 pln/h B2B We are looking for a Mid+ Front-End Developer to join an international team building a modern digital platform used by customers worldwide to manage and monitor their business through a single point of access. The platform serves as a central hub for delivering products and tools for merchants. You will be working in a collaborative Agile Scrum environment, contributing to high-quality, scalable solutions while continuously improving both the product and development standards. Responsibilities: Develop and enhance front-end features based on business and product requirements Collaborate closely with cross-functional team members including Backend Developers, QA, and Business Analysts Integrate UI components with APIs and ensure seamless communication with backend services Write and maintain unit and end-to-end tests to ensure application stability and quality Participate in code reviews and contribute to continuous improvement of development practices Expectations: At least 4-5 years of experience in a Front-End Developer or similar position Strong expertise in JavaScript/TypeScript, Angular, HTML5, and SCSS Good understanding of version control systems and code review tools such as Git and GitLab Strong analytical and problem-solving skills with the ability to debug complex issues What We Offer: Medicover healthcare package Multisport card Access to an e-learning platform Group life insurance

🏢 Summary: Remote Frontend Engineer (Angular) role focused on developing and maintaining modern, scalable web applications within a microservices and microfrontend architecture. The position involves close collaboration with backend teams, implementing secure integrations, and ensuring high-quality code in a cloud-based environment. Long-term B2B project for EU citizens residing in Poland. 🗂️ Requirements: EU citizenship and residence in Poland, 6+ years of Frontend development experience, 3+ years of commercial experience with Angular, Strong knowledge of TypeScript and JavaScript, Strong knowledge of HTML and CSS/SCSS, Experience with REST APIs, Experience with microservices or microfrontend architecture, Experience with Git, Experience with testing frameworks (Jasmine/Karma), Experience with Node.js, npm, and Webpack, Knowledge of Docker and Kubernetes, Knowledge of OAuth2 and JWT, Experience working in Agile/Scrum, English level B2/C1 📃 Skills: Angular, TypeScript, JavaScript, HTML, CSS, SCSS, REST, Microservices, Microfrontends, Git, Jasmine, Karma, Node.js, npm, Webpack, Docker, Kubernetes, OAuth2, JWT, CI/CD, AWS, Azure, Selenium, SonarQube 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking an experienced Frontend Engineer (Angular) to join a remote, development team. The role focuses on building modern, scalable web applications using Angular and collaborating within a microservices-based environment. Project information: Type of project: IT services Office location: Wroclaw , Poland Work mode: Remote Budget: 100-120 pln net/ h- b2b Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Develop and maintain modern web applications using Angular Collaborate with backend teams to integrate RESTful APIs Design and implement scalable solutions in a microservices and microfrontend architecture Ensure high-quality code through testing, code reviews, and best practices* Participate in UI/UX improvements and ensure responsive, cross-browser compatibility Work with tools such as Git, Jira, and CI/CD pipelines Implement authentication and security mechanisms (OAuth2, JWT, etc.) Collaborate in Agile/Scrum teams and contribute to continuous improvement Support deployment and integration processes in cloud and containerized environments Competence demands: At least 6+ years of experience in Frontend development, including 3+ years with Angular Strong knowledge of TypeScript, JavaScript, HTML, and (S)CSS Experience with REST APIs and modern frontend architectures (microservices/microfrontends) Familiarity with Git, testing frameworks (Jasmine/Karma), and build tools (Node.js, npm, Webpack) Understanding of UI/UX, responsive design, and cross-browser compatibility Basic knowledge of Docker, Kubernetes, and authentication methods (OAuth2, JWT) Experience working in Agile/Scrum environments Very good English communication skills (B2/C1) Nice to have : Experience with NgRx/Akita, CI/CD, cloud platforms (AWS/Azure), and testing tools (Selenium, SonarQube) Insurance domain knowledge We offer: Remote working model Full-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance

🏢 Summary: Senior Frontend Engineer role focused on leading development of a high-traffic web application for shipping management and rate comparison. The position involves end-to-end frontend ownership, from translating designs into production-ready interfaces to optimizing performance and accessibility. You will shape architecture decisions and maintain standards within a React/TypeScript monorepo environment. 🗂️ Requirements: 8+ years of production frontend development experience, 3+ years in senior role within scale-up or start-up environment, Deep expertise in React and TypeScript, Strong knowledge of state management and component architecture, Proficiency in HTML semantics and modern CSS, Experience with web performance optimization and Core Web Vitals, Practical expertise in WCAG 2.2 AA accessibility standards, Experience with unit, integration, and end-to-end testing, Experience working with monorepos, Ability to contribute to frontend and API architecture decisions 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, Grid, Flexbox, WCAG, CoreWebVitals, Testing, Monorepo, API, AWS, Snowflake, Figma 🏢 Description: Senior Frontend Engineer Our Client is an ambitious tech company on a mission to create a frictionless shipping experience for SMEs. They wrap real-time pricing, comparison, booking, and tracking into a clean and unified interface, replacing outdated logistics processes with a seamless digital platform. Role We are looking for an experienced Senior Frontend Engineer to play a central role in shaping a web app where thousands of customers every week sign up, compare rates, manage integrations, and book shipments. You will work end-to-end—from understanding customer problems to shipping production code—while leading frontend work on a core value team (Customer Experience, Marketplace, or SaaS). Responsibilities Plan and lead frontend development within your value team, collaborating closely with PMs, designers, and backend engineers. Translate designs into production user interfaces that are accessible, performant, well-tested, and consistent with the rest of the product. Build prototypes to put working code in front of customers when validating product ideas. Own web performance on the surfaces you touch, ensuring excellent Core Web Vitals to boost conversion rates. Champion accessibility across the platform (WCAG 2.2 AA is the baseline). Contribute to architecture decisions that cross the frontend/backend line, including API boundaries and real-time updates. Maintain shared standards across a React/TypeScript monorepo through code reviews and technical councils. Mentor junior engineers and contribute to the evolution of the company's design system. Key competences 8+ years of experience writing production frontend code, with the last 3+ at a senior level in a scale-up/start-up environment. Deep React and TypeScript experience, with strong opinions on state management and component architecture. Solid web fundamentals: HTML semantics, modern CSS (Grid, Flexbox, container queries), browser rendering pipelines, and the network layer. Accessibility expertise as a practitioner skill, capable of spotting WCAG issues during design reviews. Fluency in web performance, measuring and optimizing Core Web Vitals on real products. High testing maturity (unit, integration, and end-to-end tests). Excellent written and spoken English communication skills. Bonus points for: Experience with large-scale monorepos, background in logistics/marketplaces/B2B SaaS, contributing to design systems, embedding AI-assisted features, or a working knowledge of Go. Salary and Conditions Salary up to 7000 Euro per month 100% remote from Poland B2B contract signed directly with our Client Start ASAP Benefits Work with a modern tech stack (React, TypeScript, AWS, Snowflake, Figma, Claude Code, etc.) A curious, collaborative, low-ego culture within a Great Place to Work certified environment

🏢 Summary: Senior Angular Frontend Developer role focused on building and enhancing complex, scalable web applications in a hybrid work model. The position combines advanced Angular frontend development with Java-based backend integration and automated testing. You will work in Agile teams to deliver high-quality, user-centric digital products. 🗂️ Requirements: 5+ years of frontend development experience with Angular, 3+ years of experience with Java, Spring, Maven, JUnit, Strong knowledge of NgRx, TypeScript, JavaScript, HTML, CSS, Experience with Karma and Jasmine testing frameworks, Experience with Git version control, Knowledge of design patterns, SOLID principles, Clean Code, Experience designing and implementing automated tests, Experience working in Agile/Scrum environment, English level B2 or higher, Polish communicative level, Legal right to work in the European Union 📃 Skills: Angular, TypeScript, JavaScript, HTML, CSS, NgRx, Karma, Jasmine, Java, Spring, Maven, JUnit, Git, SOLID, CleanCode, REST, Agile, Scrum 🏢 Description: Unleash digital innovation — create transformative frontends that redefine user experiences! Warsaw-based opportunity with hybrid, remote work model (up to 5 days remote per week) As a Senior Angular Frontend Developer , you will be working for our client, a leading company in the tech industry committed to delivering cutting-edge digital solutions. You will play a pivotal role in developing, maintaining, and enhancing complex frontend applications, bridging creative design with robust functionality, and supporting impactful product launches. This role offers a unique chance to elevate your career within a dynamic team focused on innovation and excellence. Your main responsibilities: Collaborate with cross-functional teams to develop scalable, high-quality Angular applications. Build responsive, user-centric interfaces using Angular, TypeScript, HTML, and CSS. Develop backend API layers in Java for seamless frontend integration. Participate in code reviews, ensuring code quality, security, and maintainability. Design and implement automated tests (unit, integration, end-to-end) to ensure product stability. Engage actively in Agile/Scrum processes, including sprint planning, stand-ups, and retrospectives. You're ideal for this role if you have: 5+ years of experience in frontend development, specializing in Angular. Strong expertise with NgRx, Karma/Jasmine, TypeScript, JavaScript, HTML, and CSS. At least 3 years of experience with Java, Spring, Maven, and JUnit. Hands-on practical knowledge of Git version control. Good understanding of design patterns, SOLID principles, and Clean Code practices. Proficiency in English at least B2 level. It is a strong plus if you have: (optional) Experience working in fast-paced Agile/Scrum environments. Additional certifications or skills in automation testing or cloud technologies. Language required for the role: Polish (Communicative level) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Developer role focused on building and optimizing modern, high-performance web applications using cutting-edge front-end technologies in a hybrid Warsaw-based setup. The position involves delivering scalable solutions, implementing testing best practices, and integrating micro front-end architectures. You will collaborate with cross-functional teams to create responsive, high-quality digital products. 🗂️ Requirements: 5+ years of front-end web development experience, Strong expertise in React and TypeScript, Experience with testing frameworks: Jest, Cypress, or Playwright, Experience building responsive, scalable web applications, Knowledge of micro front-end architectures, Experience with reactive programming and RxJS, Experience with modern build tools, Experience working in Agile SDLC environments, Legal right to work in the European Union 📃 Skills: React, Angular, TypeScript, JavaScript, Jest, Cypress, Playwright, RxJS, Webpack, Vite, Vitest, SSR, CSS-in-JS, Microfrontends, HTML, CSS 🏢 Description: Unleash the Future of Web Applications — Drive Innovation with Cutting-Edge Front-End Technologies! Warsaw-based opportunity with hybrid work model (4 days per week in the office) As a Senior React Developer , you will be working for our client, a leader in web application innovation within the technology industry. You’ll contribute to building and executing challenging projects across a variety of initiatives, collaborating closely with stakeholders, UX designers, and development teams to transform requirements into high-impact deliverables. This role offers a unique chance to learn new technologies and continually elevate your skills while shaping the future of digital experiences. Your main responsibilities: Develop and maintain modern, dynamic web applications using React, Angular, and TypeScript. Collaborate with cross-functional teams to translate user requirements into clean, scalable code. Implement best practices in testing using Jest, Cypress, or Playwright to ensure quality and performance. Integrate micro front-end architectures and reactive programming techniques such as RxJS. Optimize applications for maximum speed, scalability, and responsiveness. Contribute to code reviews, documentation, and continuous improvement processes. Leverage modern build tools like Webpack and Vite to streamline development workflows. Stay updated on industry trends and introduce innovative solutions to technical challenges. You're ideal for this role if you have: 5+ years of hands-on experience in front-end web development. Strong expertise in React, TypeScript, and testing frameworks like Jest, Cypress, or Playwright. Proven ability to deliver rich, responsive web applications with clean code. Familiarity with micro front-end architectures and reactive programming, particularly RxJS. Experience working in agile SDLC environments, including research, design, and engineering phases. Excellent communication skills and ability to manage multiple projects simultaneously. Self-motivated, innovative mindset with strong organizational skills. It is a strong plus if you have: Bachelor's degree in Computer Science or related field. Experience with SSR, CSS-in-JS, Vite, Vitest, and Webpack. Knowledge of micro front-end development and advanced build pipelines. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Front-End Developer role focused on building and maintaining scalable platform-wide React libraries and design system components for a major financial institution. The position involves developing reusable front-end solutions, ensuring quality through testing, and supporting product teams with platform integration. It emphasizes performance, accessibility, and high engineering standards within a hybrid work model. 🗂️ Requirements: 5+ years of experience in front-end development with React, Strong expertise in JavaScript and TypeScript, Experience building and maintaining scalable front-end applications and NPM packages, Experience with unit and end-to-end testing, Proficient use of Git including advanced branch and commit management, Knowledge of accessibility standards and WCAG, Experience with Jira, Confluence, and Bitbucket, Good command of Polish and communicative English, Legal right to work in the European Union 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, Testing, Cypress, Git, WCAG, Jira, Confluence, Bitbucket, ReactNative, Capacitor, WebView 🏢 Description: Empower innovation at scale — shape the future of front-end technology! Warszawa-based opportunity with hybrid work model As a Senior React Front-End Developer – Platform Integration and Design Systems , you will be working for our client, a leading financial institution, delivering robust and scalable front-end solutions. Join a team committed to building advanced platform components that empower seamless user experiences and drive digital transformation. Your main responsibilities: Develop and maintain platform-wide React libraries and components aligned with the Bank’s Design System. Implement and optimize generic functionalities and innovative technical solutions for front-end teams. Write and sustain comprehensive unit and end-to-end tests to ensure high-quality deliverables. Ensure consistency, performance, and accessibility standards are upheld across all solutions. Collaborate with cross-functional platform teams and UI/UX designers to refine components and share best practices. Provide technical guidance and support to product teams utilizing the platform solutions. Maintain clear and detailed documentation for developed components and functionalities. You're ideal for this role if you have: Over 5 years of professional experience in front-end development with React. Strong expertise in JavaScript, TypeScript, NPM, and CSS. Proven experience in building and maintaining scalable front-end applications and NPM packages. Strong knowledge of unit and end-to-end testing (e.g., Jest, Testing Library, Cypress). Proficient use of the Git version control system, including managing branches and commits (rebase, cherry-pick, revert, squash, changing commit order and descriptions). Good understanding of accessibility principles (a11y), WCAG standards, and building accessible interfaces. Experience working with Jira, Confluence, and Bitbucket. It is a strong plus if you have: Experience working with design systems or contributing to their development. Knowledge of microfrontend architecture and integration challenges. Experience with hybrid mobile applications such as React Native, Capacitor, or WebView. Familiarity with AI tools or agents in software development projects. Language required for the role: Good command of Polish and Communicative English. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Developer role focused on building and optimizing modern, scalable web applications using cutting-edge front-end technologies in a hybrid work model. The position involves collaborating with cross-functional teams, implementing micro front-end architectures, and ensuring high-quality code through modern testing practices. It offers the opportunity to drive innovation and continuously enhance technical expertise. 🗂️ Requirements: 5+ years of experience in front-end web development, Strong expertise in React, Strong expertise in TypeScript, Experience with testing frameworks (Jest, Cypress, or Playwright), Experience building responsive, scalable web applications, Familiarity with micro front-end architecture, Knowledge of reactive programming (RxJS), Experience with modern build tools, Experience working in Agile SDLC environments, Legal right to work in the European Union 📃 Skills: React, Angular, TypeScript, JavaScript, Jest, Cypress, Playwright, RxJS, Webpack, Vite, Vitest, SSR, CSS-in-JS, HTML, CSS 🏢 Description: Unleash the Future of Web Applications — Drive Innovation with Cutting-Edge Front-End Technologies! Warsaw-based opportunity with hybrid work model As a Senior Front-End Developer , you will be working for our client, a leader in web application innovation within the technology industry. You’ll contribute to building and executing challenging projects across a variety of initiatives, collaborating closely with stakeholders, UX designers, and development teams to transform requirements into high-impact deliverables. This role offers a unique chance to learn new technologies and continually elevate your skills while shaping the future of digital experiences. Your main responsibilities: Develop and maintain modern, dynamic web applications using React, Angular, and TypeScript. Collaborate with cross-functional teams to translate user requirements into clean, scalable code. Implement best practices in testing using Jest, Cypress, or Playwright to ensure quality and performance. Integrate micro front-end architectures and reactive programming techniques such as RxJS. Optimize applications for maximum speed, scalability, and responsiveness. Contribute to code reviews, documentation, and continuous improvement processes. Leverage modern build tools like Webpack and Vite to streamline development workflows. Stay updated on industry trends and introduce innovative solutions to technical challenges. You're ideal for this role if you have: 5+ years of hands-on experience in front-end web development. Strong expertise in React, Angular, TypeScript, and testing frameworks like Jest, Cypress, or Playwright. Proven ability to deliver rich, responsive web applications with clean code. Familiarity with micro front-end architectures and reactive programming, particularly RxJS. Experience working in agile SDLC environments, including research, design, and engineering phases. Excellent communication skills and ability to manage multiple projects simultaneously. Self-motivated, innovative mindset with strong organizational skills. It is a strong plus if you have: (optional) Bachelor's degree in Computer Science or related field. Experience with SSR, CSS-in-JS, Vite, Vitest, and Webpack. Knowledge of micro front-end development and advanced build pipelines. Language Required for the role: Fluent Polish and English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Frontend Security Engineer role focused on building secure, production-ready React/Next.js applications with advanced edge security architecture. The position centers on implementing security best practices, preventing frontend vulnerabilities, and integrating secure frontend systems with GCP-based microservices. This role combines hands-on development, security automation, and technical leadership in a hybrid Krakow-based setup. 🗂️ Requirements: Minimum 7 years of frontend development experience, Deep expertise in React and modern frontend frameworks, Strong proficiency in TypeScript, Experience with React Server Components, Server Actions, and Partial Pre-rendering, Proven experience mitigating XSS, CSRF, and supply-chain attacks, Experience implementing OAuth2/OpenID Connect authentication flows, Experience building and enforcing Content Security Policies, Experience integrating frontend with GCP microservices, Experience with REST, GraphQL, or gRPC APIs, Experience with unit and end-to-end testing frameworks, Experience with CI/CD processes, Fluent English, Legal right to work in the European Union 📃 Skills: React, Next.js, TypeScript, JavaScript, Angular, Vue, Cypress, Playwright, CI/CD, OAuth2, OpenID, CSP, REST, GraphQL, gRPC, GCP, XSS, CSRF 🏢 Description: Unleash the Future of Web Security — Shape Seamless, Safe User Experiences! Krakow-based opportunity with hybrid work model (up to 3 days remote per week). As a Senior Frontend Security Engineer – React/Next.js , you will be working for our client, a leader in innovative software security solutions. Your expertise will drive the adoption of engineering excellence across a cutting-edge security platform, transforming the way web applications safeguard user data and interactions. This role offers a unique chance to impact security architecture at the edge, ensuring seamless and secure digital experiences for thousands of users. Your main responsibilities: Develop and deliver high-quality, production-ready code with a focus on React Server Components (RSC), Server Actions, and Partial Pre-rendering (PPR). Architect and implement 'Security at the Edge' layers within Next.js to protect user interactions and enhance security posture. Build and maintain Content Security Policies (CSP), secure cookie management, and robust authentication flows using OAuth2/OpenID Connect. Prevent frontend vulnerabilities such as XSS, CSRF, and clickjacking through architectural best practices. Connect frontend architectures to GCP-based microservices via type-safe API contracts utilizing REST, GraphQL, or gRPC. Mentor teams on security best practices and foster a culture of quality, efficiency, and continuous improvement. Lead efforts to automate security checks and optimize developer workflows for agility and security. Stay up-to-date with evolving frontend and security trends, sharing insights and guiding teams toward innovative solutions. You're ideal for this role if you have: At least 7 years of experience in frontend development, with deep expertise in React, Angular, or Vue. Proven track record of mitigating security vulnerabilities at the code level, especially XSS, CSRF, and supply-chain attacks. Strong proficiency in TypeScript, unit/e2e testing (e.g., Cypress, Playwright), and CI/CD processes. Experience connecting frontend systems to GCP microservices with type-safe API contracts (REST, GraphQL, gRPC). Demonstrated leadership in guiding engineering teams and influencing technology direction. Broad technical skill set with the ability to apply the right tools for complex problems. Passion for building better, faster, and safer solutions that make a real difference. It is a strong plus if you have: Experience architecting solutions that identify and solve operational problems or opportunities. Respected reputation for quality development and impactful contributions. Holistic problem-solving mindset with a focus on long-term impact. Language required for the role: Fluent English, both written and spoken. Eligibility to work on this role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.