Senior Frontend Engineer (React)

🏢 Summary: Senior Front End Engineer role focused on building high-performance web applications for a fast-paced financial environment using modern frontend technologies and real-time data solutions. The position involves developing scalable interfaces, collaborating with cross-functional teams, and optimizing application performance and code quality. 🗂️ Requirements: 5+ years of Front End development experience, Strong knowledge of React, Strong knowledge of Next.js, Strong knowledge of TypeScript, Experience with WebSockets, Experience with AG Grid, Experience with Jest, Experience with React Testing Library, Experience with Playwright, Familiarity with Git, Familiarity with CI/CD, Experience with AI-assisted development tools, Fluent English 📃 Skills: React, Next.js, TypeScript, WebSockets, AG, Grid, Jest, Playwright, Git, CI/CD 🏢 Description: Senior Front End Engineer We are looking for an experienced Front End Engineer to build modern, high-performance web applications used in a fast-paced financial environment. You will work closely with backend engineers and business stakeholders to deliver scalable, user-friendly solutions with a strong focus on real-time data and application performance. Responsibilities Develop and maintain web applications using React, Next.js, and TypeScript. Build reusable UI components and real-time data interfaces. Collaborate with cross-functional teams to deliver business solutions. Optimize performance and ensure code quality through testing and best practices. Requirements 5+ years of experience in Front End development. Strong knowledge of React, Next.js, and TypeScript. Experience with WebSockets, AG Grid, and modern testing frameworks (Jest, React Testing Library, Playwright). Familiarity with Git, CI/CD, and modern development practices. Experience working with AI-assisted development tools. Fluent English.

🏢 Summary: Senior Software Engineering Manager: Web role leading the strategy, delivery, and governance of secure, scalable, high-performing web platforms and applications. Responsible for modernizing web architecture, driving cloud-native and API-driven solutions, and overseeing end-to-end web development lifecycle. Ensures compliance, performance optimization, and engineering excellence while managing and mentoring web engineering teams. 🗂️ Requirements: Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field, 6–10 years of experience in web engineering, Minimum 5 years in leadership roles managing web engineering teams, Proven experience delivering large-scale customer-facing web applications, Strong expertise in modern front-end frameworks (React, Angular, or Vue), Experience with back-end integration for web platforms, Hands-on experience with responsive design and accessibility standards (WCAG), Experience with cloud-native web delivery and CDN management, Knowledge of CI/CD pipelines and containerized deployments, Understanding of security, compliance, and data protection standards 📃 Skills: React, Angular, Vue, JavaScript, CSS, HTML, APIs, PWA, Microfrontends, WebAssembly, CMS, CICD, Docker, Kubernetes, Jenkins, AWS, Azure, GCP, WCAG, PCI, CDN, Observability, Cloud 🏢 Description: Senior Software Engineering Manager: Web Role Overview The Senior Software Engineering Manager: Web is responsible for leading the development, optimization, and governance of the organization’s web platforms and applications. This role ensures secure, scalable, and high-performing web solutions that deliver seamless digital experiences, while aligning with enterprise engineering and digital strategy. Key Responsibilities 1. Web Strategy & Leadership ·        Define and execute the web engineering strategy and roadmap, ensuring alignment with enterprise architecture and digital channel priorities. ·        Champion modernization initiatives such as progressive web apps (PWAs), micro-frontends, cloud-native web delivery, and responsive design. ·        Stay current with emerging web technologies (WebAssembly, headless CMS, API-driven frontends) to drive innovation. 2. Web Platform Delivery ·        Oversee the end-to-end development lifecycle of web applications, portals, and enterprise digital front-ends. ·        Ensure platforms are secure, high-performing, accessible, and cross-browser/device optimized. ·        Drive adoption of CI/CD pipelines, containerized web deployments, and automated testing frameworks. ·        Partner with backend, mobile, and integration teams to deliver seamless omni-channel experiences. 3. Governance, Risk & Compliance ·        Enforce secure coding standards and ensure adherence to regulatory and compliance requirements (e.g., accessibility, data protection, PCI). ·        Implement observability and performance monitoring frameworks for web applications. ·        Align web engineering governance with enterprise-wide security, risk, and compliance frameworks. 4. Leadership & People Development ·        Lead and mentor web engineers, UI/UX developers, and front-end specialists. ·        Build organizational expertise in modern JavaScript frameworks (React, Angular, Vue), CSS architectures, and API-first design. ·        Foster a culture of innovation, collaboration, and engineering excellence across web teams. ·        Drive career development, upskilling, and succession planning for web engineering talent. 5. Stakeholder & Vendor Management ·        Partner with digital channels, product owners, and design teams to shape customer-centric web experiences. ·        Collaborate with external vendors, CMS providers, and hosting partners to ensure quality and performance. ·        Represent web engineering in enterprise engineering forums, steering committees, and digital strategy boards Educational Qualifications ·        Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field (mandatory). ·        Postgraduate qualification (MSc in IT/Software, MBA) – advantageous. Professional Certifications (preferred): ·        Cloud certifications (AWS/Azure/GCP Architect or Developer). ·        Front-end/web certifications (React, Angular, or equivalent). ·        Agile/SAFe certifications (Scrum Master, Product Owner, SAFe Practitioner). ·        DevOps/CI-CD certifications (Docker, Kubernetes, Jenkins, etc.). Relevant Experience ·        6–10 years’ experience in web engineering, with at least 5 years in leadership roles. ·        Proven track record in delivering large-scale, customer-facing web applications and portals. ·        Strong background in front-end frameworks (React, Angular, Vue) and back-end integration for web platforms. ·        Hands-on experience in responsive design, accessibility standards (WCAG), and performance optimization. ·        Experience in cloud-native web delivery, CDN management, and web observability tools. ·        Familiarity with fintech, banking, or large-scale enterprise digital platforms preferred. Core Skills & Competencies ·        Deep expertise in modern web frameworks, front-end engineering, and API-driven architectures. ·        Strong understanding of user experience, accessibility, and performance optimization. ·        Excellent leadership and mentoring skills, with experience building diverse web teams. ·        Ability to balance innovation with governance, compliance, and enterprise standards. ·        Strong stakeholder engagement skills to bridge design, product, and engineering perspectives

🏢 Summary: Senior Frontend Engineer role focused on building and evolving scalable, maintainable web applications using React. The position involves leading development of user-facing features, ensuring performance and accessibility, and shaping the frontend architecture. You will own features end-to-end and collaborate closely with product and design to deliver high-quality solutions. 🗂️ Requirements: Commercial experience with React, Experience building complex frontend features, Ability to work independently on frontend tasks, Experience collaborating with product and design stakeholders, Strong focus on code quality and maintainability, Experience optimizing performance and accessibility 📃 Skills: React, JavaScript, TypeScript, HTML, CSS, Testing, Accessibility, Performance, Git, DesignSystems 🏢 Description: We are hiring a Senior Frontend Engineer to join a product-focused team working on modern web applications for our client. In this role, you’ll take the lead in building user-facing features that are reliable, scalable, and easy to maintain. You’ll work at the intersection of engineering, product, and design — turning ideas into real, high-quality solutions used by end users. This is a position for someone who is comfortable making decisions, taking responsibility for their work, and actively shaping the frontend layer of the product. Your day-to-day Build and evolve frontend features with a focus on scalability and long-term maintainability Turn product concepts and design mockups into functional, high-quality interfaces Work closely with product and design stakeholders to refine solutions and improve user experience Take care of application performance, accessibility, and overall code health Influence technical direction within the frontend domain Spot inefficiencies and improve existing solutions and codebase structure Own your work end-to-end — from idea to production. What we’re looking for Solid commercial experience in frontend development with React Confidence in delivering complex features without close supervision Experience collaborating with non-engineering stakeholders (e.g. product, design) Strong focus on code quality, readability, and long-term maintainability Ownership mindset — you don’t just implement tasks, you drive solutions. Nice to have Experience working on complex or large-scale web platforms Exposure to shared frontend ecosystems or multi-team environments Familiarity with component-driven development and design systems Interest in growing your skills in TypeScript and modern frontend testing practices

🏢 Summary: Senior Front-End Engineer role focused on building scalable, responsive enterprise web applications using React and modern front-end technologies. The position involves collaborating with UX, product, and backend teams, leading front-end architecture decisions, optimizing performance, and mentoring engineers in an Agile environment. Hybrid work near Fort Lauderdale, FL with emphasis on clean architecture, reusable UI systems, and enterprise-grade user experiences. 🗂️ Requirements: 8+ years developing enterprise front-end applications, 3+ years advanced React.js experience, Proficiency in JavaScript, HTML5, CSS3, Experience with responsive CSS frameworks, Knowledge of component-driven architecture and scalable front-end design, Experience with wireframes, prototypes, and UI design tools, Front-end performance optimization experience, Proficiency with Git and version control workflows, Knowledge of code reviews, testing, debugging, and maintainable architecture, Ability to work in Agile/Scrum environments, Authorization to work in the U.S., Residence in Florida 📃 Skills: React, JavaScript, HTML5, CSS3, Redux, Zustand, Tailwind, Bootstrap, MaterialUI, Figma, AdobeXD, Sketch, Git, Next.js, TypeScript, Jest 🏢 Description: About the Role The Senior Front-End Engineer role is an opportunity to build modern, responsive web applications that deliver exceptional user experiences for enterprise customers. You'll collaborate with designers, product leaders, and backend engineers to transform ideas into intuitive, scalable interfaces while influencing both technical direction and user experience. This position is ideal for someone who enjoys owning the front-end architecture, mentoring teammates, and delivering polished applications that perform at scale. What You'll Do - Design and develop modern, responsive web applications using React and contemporary front-end development practices. - Partner closely with UX designers, product managers, and backend engineers to translate business requirements into intuitive user interfaces. - Convert wireframes, prototypes, and visual concepts into clean, maintainable, production-ready code. - Build reusable UI components and scalable design patterns that promote consistency across applications. - Champion performance optimization techniques to ensure fast, responsive, and reliable user experiences. - Create interfaces that are accessible, responsive, and compatible across modern browsers and devices. - Participate throughout the full front-end development lifecycle, from solution design through deployment and ongoing enhancements. - Conduct peer code reviews, share technical knowledge, and mentor junior engineers on development standards and best practices. - Promote clean architecture, automated testing, maintainable code, and continuous improvement within the engineering team. - Collaborate in Agile ceremonies and contribute to technical planning, estimation, and solution design. What You'll Bring - 8+ years of professional experience developing enterprise front-end applications. - 3+ years advanced expertise with React.js, including functional components, Hooks, Context API, and modern state management approaches such as Redux/Zustand. - 2–3+ years of hands-on involvement with UI/UX design, user-centered design principles, or close collaboration with design teams. - Strong proficiency with JavaScript (ES6+), HTML5, CSS3, responsive layouts, and modern browser capabilities. - Experience developing responsive interfaces using CSS frameworks such as Tailwind CSS, Bootstrap, or Material UI. - Solid understanding of component-driven architecture, reusable design systems, and scalable front-end application design. - Experience creating or working from wireframes, prototypes, mockups, and interactive designs using tools such as Figma, Adobe XD, or Sketch. - Strong knowledge of UI design fundamentals, including typography, spacing, color theory, layout, and usability. - Experience optimizing front-end performance through techniques such as lazy loading, code splitting, rendering optimization, and efficient state management. - Proficiency with Git, collaborative version control workflows, and modern software development practices. - Strong understanding of software quality practices, including code reviews, debugging, testing, and maintainable application architecture. - Excellent communication skills with the ability to collaborate effectively across engineering, product, and design teams. Nice to Have - Experience with Next.js and server-side rendering. - Working knowledge of TypeScript. - Familiarity with WCAG accessibility standards and inclusive design practices. - Experience with automated testing frameworks such as Jest and React Testing Library. - Experience working within Agile/Scrum delivery environments. - Previous experience mentoring developers or serving as a technical lead on front-end initiatives. Location - Hybrid role: 3 days onsite and 2 days remote near Fort Lauderdale, FL. - Applicants must be authorized to work for any employer in the U.S. - Candidates must reside in Florida. Compensation and Benefits - Estimated compensation range: $40–$50 USD. - Eligible for discretionary bonuses, commissions, and incentive programs. - Comprehensive benefits package including medical, dental, vision, 401(k), and paid time off. ADA Specifications - Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this position.

🏢 Summary: Senior Frontend Security Engineer role focused on building and securing modern web applications using React and Next.js. The position centers on architecting security at the edge, implementing robust authentication and frontend protection mechanisms, and integrating with GCP-based microservices. It combines hands-on development, security automation, and technical leadership to enhance a large-scale security platform. 🗂️ Requirements: Minimum 7 years frontend development experience, Expertise in React and Next.js, Strong knowledge of frontend security vulnerabilities (XSS, CSRF, clickjacking, supply-chain attacks), Experience implementing OAuth2 and OpenID Connect authentication, Proficiency in TypeScript, Experience with unit and e2e testing, Experience with CI/CD pipelines, Experience integrating frontend with GCP microservices, Knowledge of REST, GraphQL, or gRPC APIs, Fluent English, Legal right to work in the EU 📃 Skills: React, Next.js, TypeScript, JavaScript, OAuth2, OpenIDConnect, CSP, XSS, CSRF, GraphQL, REST, gRPC, GCP, Cypress, Playwright, CI/CD, Angular, Vue 🏢 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.

🏢 Summary: Senior Frontend Security Engineer role focused on building and securing React/Next.js applications with advanced edge security architecture. The position involves implementing secure frontend solutions, integrating with GCP microservices, and preventing common web vulnerabilities. It offers a hybrid work model in Krakow with significant impact on web application security at scale. 🗂️ Requirements: Minimum 7 years of frontend development experience, Expert knowledge of React and modern frontend frameworks, Strong experience with Next.js including RSC and Server Actions, Proven experience mitigating XSS, CSRF, and supply-chain attacks, Strong proficiency in TypeScript, Experience with unit and end-to-end testing, Experience with CI/CD pipelines, Experience integrating frontend with GCP microservices, Fluent English, Legal right to work in the EU 📃 Skills: React, Next.js, TypeScript, JavaScript, Angular, Vue, GCP, REST, GraphQL, gRPC, OAuth2, OpenID, Cypress, Playwright, CI/CD, CSP 🏢 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.

🏢 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.

🏢 Summary: Senior Frontend Engineer role focused on building and enhancing scalable web applications for a global e-commerce platform. The position involves designing responsive user interfaces, optimizing performance, and contributing to frontend architecture using modern technologies. You will collaborate with cross-functional teams to deliver high-quality, reusable, and accessible UI solutions. 🗂️ Requirements: Degree in Computer Science or equivalent experience, 4+ years of software engineering experience, Strong knowledge of JavaScript, TypeScript, HTML, CSS, Expertise in React ecosystem, Experience with state management libraries, Experience with testing frameworks, Experience with CI/CD pipelines, Experience with cloud environments, Understanding of APIs and distributed systems, Knowledge of SQL databases 📃 Skills: JavaScript, TypeScript, HTML, CSS, React, Zustand, ReactQuery, RxJS, Jest, Playwright, CI/CD, Azure, Kubernetes, SQL, APIs, Microfrontends, Routing, Bundlers 🏢 Description: Position: Senior Frontend Engineer Type of contract: COE (UoP) up to 22 700 PLB gross/month Working model: fully remote You can join our client and work on a modern digital platform designed to better connect shoppers and retailers within the global e-commerce ecosystem. The project focuses on building and enhancing scalable web applications and core services that power user interactions. You’ll collaborate closely with product and design teams to deliver intuitive, high-performance user experiences. The environment emphasizes innovation, usability, and continuous improvement of frontend architecture. Role summary: As a Senior Engineer, you will take ownership of designing and developing responsive, high-quality user interfaces while collaborating with cross-functional teams. The role involves translating UI/UX designs into functional applications, improving performance, and ensuring consistency through reusable components. You’ll also contribute to code quality through reviews and support architectural decisions. The position requires strong expertise in modern frontend technologies, especially React and TypeScript, along with experience in scalable application development. Responsibilities: Design and develop modern, responsive user interfaces Collaborate with designers, backend engineers, and DevOps teams Review code and maintain high engineering standards Build reusable UI components and optimize performance Ensure cross-browser compatibility and accessibility Key requirements: Degree in Computer Science (or equivalent experience) 4+ years of experience in software engineering Hands-on experience in writing production code for web applications; Practical knowledge in front-end technologies such as JavaScript, TypeScript, CSS, HTML, with strong proficiency in TypeScript (generics, type-safe APIs, strict mode); Expertise in the React ecosystem including React 19, React Router, modern bundlers (Rsbuild/Webpack/Vite), and micro-frontend architectures (Module Federation); Experience with state management and data-fetching libraries such as Zustand, TanStack React Query, and reactive patterns with RxJS; Familiarity with modern component libraries and styling toolchains-  HeroUI, Tailwind CSS, design-token-driven theming; Experience with unit and E2E testing frameworks such as Jest, Testing Library, and Playwright; Experience working with internal packages and publishing them to a private registry and Semantic Versioning; Familiarity with CI/CD pipelines and release workflows- Azure DevOps, GitHub Actions, or Jenkins- including PR validation, artifact promotion, and multi-environment deploys; An understanding of cloud computing principles and practices; experience with production applications in cloud environments. Azure and Kubernetes experience is preferred; Knowledge in key programming concepts like memory management, optimization techniques, API design, relational mapping frameworks, and distributed applications; An understanding of database concepts and experience writing SQL in a relational database such as MySQL or PostgreSQL; Familiarity with monitoring and logging solutions; Self-starter who can move projects forward by filling in the gaps on Agile teams, from delivering complete, well-defined functionalities with high quality standards, through reviewing other Engineers' code to contributing to design sessions. Offer: COE, up to 22 700 PLN gross per month Private healthcare, life insurance, sports card, and lunch subsidy Learning and development support (including tuition assistance) Employee Assistance Program Remote or hybrid work model supporting work–life balance Opportunity to collaborate with experienced engineers on global-scale e-commerce solutions

🏢 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 Software Engineer responsible for defining technical standards and architecture, leading backend and frontend development, and ensuring secure, scalable, and observable solutions. The role drives CI/CD, enterprise integrations, and production support while aligning engineering practices with product and operations goals. 🗂️ Requirements: Proven experience defining technical standards and architecture, Experience with CI/CD orchestration, Experience with observability implementation, Experience implementing on-premises, hybrid, and cloud solutions, Experience leading backend and frontend architectural decisions, Experience maintaining CI/CD pipelines, Experience coordinating enterprise integrations, Knowledge of DDD and clean architecture, Expertise in Java and Spring Boot, Expertise in Python and FastAPI, Expertise in React or Angular, Experience with L2/L3 production support, Experience with Spring Security and OAuth 📃 Skills: Java, SpringBoot, Python, FastAPI, React, Angular, CICD, Observability, ServiceNow, Jira, Boomi, DDD, OAuth, SpringSecurity 🏢 Description: To strengthen the team, we are seeking a person for the role of Senior Software Engineer, responsible for defining technical standards and architecture, guiding the development team, ensuring quality practices, security, and CI/CD, and collaborating with product and operations in delivering scalable, business-aligned solutions. Main Responsibilities Define technical standards, architecture, and development practices, ensuring quality, security, performance, and resilience in production environments. Orchestrate end-to-end delivery with CI/CD and observability while promoting responsible autonomy among teams aligned with product and operational objectives. Implement on-premises, hybrid, and cloud solutions with security best practices, observability, and integration with existing systems. Lead architectural decisions in backend and frontend (Java/Spring Boot, Python/FastAPI, React/Angular), ensuring scalability, consistent testing and code reviews. Implement and maintain end-to-end CI/CD pipelines and observability (logs, metrics, distributed tracing). Coordinate enterprise integrations (ServiceNow, Jira, CRMs) and iPaaS (e.g., Boomi), including mapping, validation, and compliance. Apply practices such as DDD, clean architecture, application security, and secrets/IAM management throughout the development lifecycle. Provide technical guidance to the team, elevate quality standards, and align practices with product and operations. Lead L2/L3 support in production: incident triage and resolution, prevention escalation (on call), SLA management, and conducting post-mortems focused on root causes and corrective actions. Operate and evolve applications in on-premises, hybrid, or cloud environments: VMs, networks, VPNs, certificates, Nginx/reverse proxy, load balancing, and enhancing the security of exposed services. Key Requirements Proven ability to define technical standards, architecture, and development practices. Experience with CI/CD orchestration and observability practices. Knowledge of implementing on-premises, hybrid, and cloud solutions with security best practices. Leadership in architectural decisions for backend and frontend technologies. Experience with maintaining CI/CD pipelines and end-to-end observability. Ability to coordinate enterprise integrations and ensure compliance. Mastery of practices such as DDD and clean architecture. Technical expertise in Java/Spring Boot, Python/FastAPI, React/Angular. Experience in providing L2/L3 technical support and leading incident resolution. Expertise in security practices, including Spring Security and OAuth. Nice to Have Experience with Docker, Kubernetes, and cloud environments (Azure/AWS/GCP). Background in data management with PostgreSQL, MongoDB, and Redis. Familiarity with AI models, particularly RAG. Knowledge in security access management and policies based on the principle of least privilege.