React Architect / Wroclaw

🏢 Summary: B2B opportunity for an experienced .NET/C# and React Architect to lead end-to-end architecture of scalable, enterprise-grade web applications in a global environment. The role combines hands-on technical leadership across backend and frontend with ownership of architectural standards, scalability, security, and cloud-native solutions. You will guide distributed teams and shape long-term architectural direction in international projects. 🗂️ Requirements: Extensive experience with C# and .NET/.NET Core in enterprise environments, Strong expertise in React and modern frontend ecosystems, Experience designing distributed systems and microservices architectures, Experience designing and integrating RESTful APIs, Knowledge of TypeScript and state management libraries, Experience with CI/CD pipelines and DevOps practices, Cloud experience (Azure preferred), Understanding of UX/UI principles and responsive design, Ability to define architecture standards and conduct code reviews, Professional English proficiency 📃 Skills: C#, .NET, .NETCore, React, TypeScript, REST, Microservices, Azure, CI/CD, DevOps, APIs, UX, UI 🏢 Description: Location: Kraków, Poland (Hybrid) Contract Type: B2B Industry: Global organization / International projects Role Overview We are seeking an experienced .NET / C# & React Architect to lead the design and implementation of scalable, enterprise-grade web applications within a global environment. This role combines hands-on technical leadership with architectural ownership across backend and frontend domains, while ensuring strong alignment with UX/UI best practices. The successful candidate will define architectural standards, ensure system scalability and security, and support distributed development teams in delivering high-quality digital solutions. Key Responsibilities Define and oversee end-to-end solution architecture using C#, .NET (Core/6+) , and React Design scalable backend systems, APIs, and microservices using C# Establish frontend architecture standards, component strategies, and state management patterns Ensure performance, security, maintainability, and scalability across applications Align technical solutions with UX/UI best practices, accessibility, and responsive design Provide architectural guidance, conduct code reviews, and mentor development teams Collaborate with product, UX/UI, and global stakeholders Support cloud-native architecture and DevOps practices (Azure preferred) Required Skills & Experience Extensive experience with C# and .NET / .NET Core in enterprise environments Strong expertise in React and modern frontend ecosystems Proven experience designing distributed systems and microservices architectures Solid understanding of UX/UI principles and user-centered design Experience with RESTful APIs and system integrations Knowledge of TypeScript, state management libraries, and modern frontend tooling Experience with CI/CD pipelines and DevOps practices Cloud experience (Azure preferred) Strong communication skills in English Nice to Have Experience building or maintaining design systems Experience in global or distributed teams Strong background in performance optimization and security best practices What We Offer Long-term B2B engagement Competitive daily rate Participation in international, enterprise-scale projects Hybrid working model in Kraków Opportunity to shape architectural direction in a global organization If you meet the above criteria and are interested in long-term architectural ownership within a global environment, we encourage you to apply.

🏢 Summary: Architect-level role focused on designing and leading the implementation of scalable, enterprise-grade web applications using .NET and React in a global environment. The position combines hands-on development with architectural ownership across backend, frontend, cloud, and DevOps domains. Responsibilities include defining standards, ensuring scalability and security, and guiding distributed teams in delivering high-quality solutions. 🗂️ Requirements: Extensive experience with .NET / .NET Core in enterprise environments, Strong expertise in React and modern frontend ecosystems, Experience designing distributed systems and microservices architectures, Experience building scalable backend systems and RESTful APIs, Knowledge of TypeScript and state management libraries, Experience with CI/CD pipelines and DevOps practices, Cloud experience with Azure, Understanding of UX/UI principles and responsive design, Ability to define architecture standards and conduct code reviews, Professional English communication skills 📃 Skills: .NET, ASP.NET, React, TypeScript, Azure, REST, Microservices, CI/CD, DevOps, UX, UI 🏢 Description: We are seeking an experienced .NET & React Architect to lead the design and implementation of scalable, enterprise-grade web applications within a global environment. This role combines hands-on technical leadership with architectural ownership across backend and frontend domains, including strong alignment with UX/UI best practices. The successful candidate will define architectural standards, ensure system scalability and security, and support distributed development teams in delivering high-quality digital solutions. Key Responsibilities Define and oversee end-to-end solution architecture using .NET (Core/6+) and React Design scalable backend systems, APIs, and microservices Establish frontend architecture standards, component strategies, and state management patterns Ensure performance, security, maintainability, and scalability across applications Align technical solutions with UX/UI best practices, accessibility, and responsive design Provide architectural guidance, conduct code reviews, and mentor development teams Collaborate with product, UX/UI, and global stakeholders Support cloud-native architecture and DevOps practices (Azure preferred) Required Skills & Experience Extensive experience with .NET / .NET Core in enterprise environments Strong expertise in React and modern frontend ecosystems Proven experience designing distributed systems and microservices architectures Solid understanding of UX/UI principles and user-centered design Experience with RESTful APIs and system integrations Knowledge of TypeScript, state management libraries, and modern frontend tooling Experience with CI/CD pipelines and DevOps practices Cloud experience (Azure preferred) Strong communication skills in English Nice to Have Experience building or maintaining design systems Experience in global or distributed teams Strong background in performance optimization and security best practices What We Offer Long-term B2B engagement Competitive daily rate Participation in international, enterprise-scale projects Hybrid working model in Kraków Opportunity to shape architectural direction in a global organization If you meet the above criteria and are interested in long-term architectural ownership within a global environment, we encourage you to apply.

🏢 Summary: Long-term hybrid opportunity for a senior React Developer to build highly responsive, data-intensive user interfaces for a financial sector client. The role focuses on developing scalable front-end solutions in real-time, high-volume environments using modern engineering best practices. 🗂️ Requirements: 7+ years of professional experience, Bachelor’s or Master’s degree in Computer Science or related field, Strong experience with React, Strong experience with TypeScript and JavaScript, Strong experience with state management, Strong experience with data visualisation, Strong experience with CSS3, Experience building responsive UI for large data sets, Experience in real-time, high-volume systems, Experience with TDD and BDD, Experience with UI test automation frameworks, Experience integrating with RESTful APIs, Understanding of event-driven microservices, Experience with Cloud architecture, Experience with Agile and DevOps practices, Commitment to Clean Code and engineering best practices 📃 Skills: React, TypeScript, JavaScript, CSS3, Redux, REST, C#, Microservices, Azure, TDD, BDD, DevOps, Agile, UI, Cloud 🏢 Description: React Developer We are currently looking for experienced React Developers to join a long-term project with one of our international clients in the financial sector. Location: Wroclaw, Poland (Hybrid – 3 days per week from the office) Experience: 7+ years Requirements: • Bachelor’s and/or Master’s degree or equivalent focusing on Computer Science, Computer Engineering or a related technical discipline. • Strong experience with React and TypeScript/JavaScript. • Strong experience with state management and data visualisation. • Strong experience with CSS3 and JavaScript. • Experience with developing highly responsive user interface components with large data sets, that work in high-volume, real-time environments. • Experience with TDD, BDD and UI Test Automation Frameworks. • UX Design, Interaction and/or Visual Design experience to prototype scenarios and end-to-end experiences with product owners and business stakeholders. • Experience integrating the front end with C# RESTful APIs and event driven microservices is beneficial. • Experience with Cloud architecture and engineering is beneficial, ideally on Microsoft Azure. • Agile, Test Driven Development and DevOps practices are part of your DNA. • A Software Craftsperson focused on engineering best practices and delivering Clean Code. • Good communication skills – both written and verbal. • Strong analytical and problem-solving skills, you like to figure out how things work. • Keen interest in understanding how the business works. • Passion for learning and innovation. 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Long-term B2B hybrid role focused on hands-on Java and React development within a microservices architecture, contributing directly to production code and system design. The position emphasizes high-frequency delivery, REST API development, and collaboration in a global engineering environment. It combines technical leadership with active development in financial-sector projects. 🗂️ Requirements: Strong experience with Java, Strong experience with ReactJS, Experience with microservices architecture, Experience delivering RESTful APIs, Experience with PostgreSQL, Recent experience with modern Java versions, Ability to deliver code changes frequently, Background in banking or financial sector 📃 Skills: Java, ReactJS, Microservices, REST, PostgreSQL, Docker, Kubernetes 🏢 Description: Working mode: Hybrid - 6 days per month at the Kraków office Contract type: B2B, long term cooperation Rate: 200 PLN/h Summary: This role focuses on hands-on development and system architecture, driving engineering culture, and enhancing business growth through technical expertise in a collaborative, global environment. Main Responsibilities: Deliver code to production and support system architecture aligned to microservices Understand business, engineering, and non-functional requirements Drive the desired engineering culture across teams Collaborate with a globally diverse team across regions Proactively remove impediments, assess risks, and communicate issues to program management Identify and eliminate process inefficiencies Key Requirements: Strong Java and React programming experience Experience in microservice architecture Background in the financial sector, particularly banking Proven capability of delivering code changes at high frequency Experience with RESTful API delivery Familiarity with PostgreSQL databases Recent Java experience, preferably with the latest versions Experience with ReactJS for UI application development Nice to Have: Knowledge of containers and orchestration technologies like Docker and Kubernetes. Other Details: This position offers the opportunity to work within a multi-regional team on innovative projects. Ideal for candidates seeking to leverage their development skills in a dynamic and evolving business context.

🏢 Summary: Offer for an experienced React FrontEnd Developer to design and build responsive, high-performance user interfaces in a hybrid model in Warsaw. The role focuses on developing modern web applications using React and related technologies, with strong emphasis on testing, accessibility, and performance optimization. The position involves close collaboration with cross-functional teams to deliver robust, user-centric digital products. 🗂️ Requirements: 6+ years of experience in JavaScript development, 6+ years of experience in TypeScript development, Commercial experience with React.js, Experience with Redux, Hands-on experience with HTML5, Hands-on experience with CSS3, Ability to write cross-browser compatible code, Understanding of object-oriented programming concepts and design patterns, Knowledge of functional programming paradigms, Understanding of asynchronous programming, Experience with TDD, Experience with continuous integration, Knowledge of Git and branch management, Experience with front-end debugging tools, Experience working in Agile methodology 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, OOP, FP 🏢 Description: React FrontEnd Developer IT · Warsaw (City Center) · Hybrid About the Client Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They are a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. With over a decade of experience supporting high-growth companies, they bring deep domain expertise and a proven ability to turn technology into a strategic advantage. Role Overview We are seeking a skilled React FrontEnd Developer to design and develop responsive user interfaces. In this role, you will collaborate with cross-functional teams to deliver robust, user-centric solutions while driving best practices in testing, accessibility, and performance optimization. Key Responsibilities UI Development: Designing and developing responsive user interfaces using React Testing & Integration: Implementing and maintaining TDD in applications and continuous integration. Driving best practices in testing, accessibility, and performance optimization. Collaboration: Collaborating with a cross-functional team of project managers, project analysts, and sales staff to deliver high-quality, interactive products on time. Collaborating cross-functionally with design, backend, QA, and product teams to deliver robust and user-centric solutions. Requirements & Qualifications Experience & Education: 6+ years of experience in JavaScript and TypeScript development. A Bachelor's degree in Computer Science or equivalent is preferred. Core Tech Stack: Must know a modern front-end JS framework, such as React.js + Redux; Next.js is a bonus. Hands-on experience with HTML5, CSS3. Proficiency in writing cross-browser compatible code. Programming Paradigms: Should understand OO concepts and design patterns, and their application to JavaScript development. Knows functional programming paradigms. Understands asynchronous programming paradigms and best practices. Tools & Debugging: Git and branch management knowledge. Experience debugging front-end problems and a knowledge of front-end debugging tools. Familiarity with custom package creation and integration. Soft Skills & Methodology: Experience with Agile methodologies and development practices. Good communication skills and good organization skills. Ability to work under pressure and deliver against tight deadlines. What Is Offered Compensation: Monthly compensation up to $4,800 USD . Contract Type: B2B contract via Optiveum. Work Model: Hybrid (3 days working from the office located in the center of Warsaw, 2 days working from home). Stability: Long-term cooperation with a stable, international organization.

🏢 Summary: Long-term B2B opportunity for a senior engineer to deliver production-ready code and shape system architecture in a microservices environment. The role combines hands-on Java and React development with architectural responsibilities in a global, collaborative setup. It focuses on high-frequency delivery and technical excellence within the financial sector. 🗂️ Requirements: Strong Java experience (latest versions), Strong React experience, Experience with microservices architecture, Experience delivering RESTful APIs, Experience with PostgreSQL, Proven high-frequency code delivery, Experience in banking or financial sector 📃 Skills: Java, React, Microservices, REST, PostgreSQL, Banking, Docker, Kubernetes 🏢 Description: Working mode : Hybrid - 6 days per month at the Warsaw office Contract type : B2B, long term cooperation Rate : 200 PLN/h Summary: This role focuses on hands-on development and system architecture, driving engineering culture, and enhancing business growth through technical expertise in a collaborative, global environment. Main Responsibilities: Deliver code to production and support system architecture aligned to microservices Understand business, engineering, and non-functional requirements Drive the desired engineering culture across teams Collaborate with a globally diverse team across regions Proactively remove impediments, assess risks, and communicate issues to program management Identify and eliminate process inefficiencies Key Requirements: Strong Java and React programming experience Experience in microservice architecture Background in the financial sector, particularly banking Proven capability of delivering code changes at high frequency Experience with RESTful API delivery Familiarity with PostgreSQL databases Recent Java experience, preferably with the latest versions Experience with ReactJS for UI application development Nice to Have: Knowledge of containers and orchestration technologies like Docker and Kubernetes. Other Details: This position offers the opportunity to work within a multi-regional team on innovative projects. Ideal for candidates seeking to leverage their development skills in a dynamic and evolving business context.

🏢 Summary: Principal Frontend Engineer role focused on leading the architecture of high-performance React and TypeScript applications for investment banking trading desks. The position sets technical direction, modernizing legacy internal frameworks and driving AI-assisted development practices. Includes ownership of Node.js BFF strategy and frontend testing standards in a hybrid setup. 🗂️ Requirements: 8+ years frontend engineering experience, Expert-level React, Expert-level TypeScript, Expert-level Node.js, Expert-level Cypress, Experience with AI coding assistants in production, Ability to architect high-performance frontend applications, Experience defining frontend testing standards 📃 Skills: React, TypeScript, Node.js, Cypress, JavaScript, AI, Copilot, Codeium, Neo, BFF 🏢 Description: Location: Krakow or Wroclaw (Hybrid: 3 days/week onsite) The Role Seeking a Principal Frontend Engineer for a global finance client. You will set technical direction for investment banking applications, bridging legacy internal frameworks with modern React and AI-assisted workflows. What You'll Do Architect high-performance React/TypeScript applications for trading desks Lead Node.js BFF layer strategy for complex UI state management Work with finance client's internal frameworks (Neo platform + internal design system) Define Cypress testing standards (e2e + component) across teams Drive adoption of AI coding assistants and establish best practices Must-Haves 8+ years frontend engineering experience Expert: React, TypeScript, Node.js, Cypress AI tools: Proven use of Copilot, Codeium, or similar in production Sounds like you? We'd love to chat! Send over your CV and meet the team 🚀

🏢 Summary: Long-term B2B role focused on hands-on Java and React development within a microservices architecture, contributing directly to production code and system design. The position combines backend and frontend engineering with architectural responsibilities in a global, collaborative environment. The role supports high-frequency delivery in a financial services context. 🗂️ Requirements: Strong experience with Java, Strong experience with ReactJS, Experience with microservices architecture, Experience delivering RESTful APIs, Experience with PostgreSQL, Recent experience with modern Java versions, Experience delivering code changes at high frequency, Background in financial sector, preferably banking 📃 Skills: Java, ReactJS, Microservices, REST, PostgreSQL 🏢 Description: Working mode : Hybrid - 6 days per month at the Kraków office Contract type : B2B, long term cooperation Summary: This role focuses on hands-on development and system architecture, driving engineering culture, and enhancing business growth through technical expertise in a collaborative, global environment. Main Responsibilities: Deliver code to production and support system architecture aligned to microservices Understand business, engineering, and non-functional requirements Drive the desired engineering culture across teams Collaborate with a globally diverse team across regions Proactively remove impediments, assess risks, and communicate issues to program management Identify and eliminate process inefficiencies Key Requirements: Strong Java and React programming experience Experience in microservice architecture Background in the financial sector, particularly banking Proven capability of delivering code changes at high frequency Experience with RESTful API delivery Familiarity with PostgreSQL databases Recent Java experience, preferably with the latest versions Experience with ReactJS for UI application development Nice to Have: Knowledge of containers and orchestration technologies like Docker and Kubernetes.

🏢 Summary: Senior React Developer role focused on building and maintaining modern, scalable web applications in a large international banking environment. The position involves developing high-quality, responsive frontend solutions, ensuring code quality, and supporting production systems within an Agile team. Long-term B2B contract with hybrid work model in Kraków. 🗂️ Requirements: Proven experience delivering web applications, Strong experience building rich frontend/UI layers, Excellent knowledge of React.js, Excellent knowledge of JavaScript, Excellent knowledge of TypeScript, Strong knowledge of HTML5, Strong knowledge of CSS3, Experience with CSS preprocessors (SASS or Less), Experience with Jest, Experience with React Testing Library, Experience creating pixel-perfect UI from detailed specifications, Experience designing responsive interfaces for desktop and mobile, Understanding of accessibility standards, Understanding of cross-browser compatibility, Knowledge of JSON, Knowledge of XML 📃 Skills: React, JavaScript, TypeScript, HTML5, CSS3, SASS, Less, Jest, ReactTestingLibrary, JSON, XML 🏢 Description: Location: Kraków, Poland Work model: Hybrid, 6 days per month in the Kraków office Recruitment process: Test + 1-hour live coding interview in React Contract : B2B, long-term About the role We are looking for a Senior React Developer to join the Business Services Digital team . The team delivers IT solutions and support for Business Services within a large-scale, international banking environment. This is a great opportunity for an experienced frontend engineer who enjoys building high-quality digital products, working in Agile teams, and contributing to modern, scalable web applications in a complex enterprise setting. Your responsibilities Design, develop, test, and implement modern web-based applications Build rich, responsive, and pixel-perfect user interfaces using React Maintain a delivery-oriented approach across application development and supporting software/data infrastructure Manage software releases and support existing systems in production Ensure code quality, maintainability, and full test coverage Contribute to and promote frontend best practices and engineering standards Mentor other team members through knowledge sharing and technical guidance Deliver solutions on time and within budget Follow internal development methodologies, security standards, and documentation requirements Drive productivity and quality improvement initiatives Coordinate releases through to Production Required experience Proven track record in delivering web applications Strong experience building rich frontend/UI layers Excellent knowledge of React.js Excellent knowledge of JavaScript and TypeScript Strong knowledge of HTML5 , CSS3 , and CSS preprocessors such as SASS or Less Experience with frontend testing frameworks such as Jest and React Testing Library Experience creating pixel-perfect UI based on detailed specifications Experience designing responsive interfaces for desktop and mobile applications Good understanding of accessibility and cross-browser compatibility Good knowledge of data marshalling/de-marshalling using JSON and XML Nice to have Experience working with Git Familiarity with IntelliJ and VS Code Good understanding of responsive web techniques Knowledge of Node.js / Express Experience designing digital products in the onboarding or banking domain What makes this opportunity interesting Work on impactful digital solutions in a global banking environment Join a mature engineering team focused on quality, delivery, and best practices Contribute to modern frontend development using React and TypeScript Competitive B2B rate

🏢 Summary: Senior ReactJS UI Engineer role focused on leading front-end architecture and UX optimization for scalable, high-performance web applications. The position involves driving UI enhancements, implementing design patterns, and delivering robust React-based solutions in a hybrid work model. You will collaborate across teams to build stable, user-centric applications used globally. 🗂️ Requirements: 7+ years experience in production React ecosystem applications, Strong proficiency in React and TypeScript, Commercial experience in web development, Experience translating requirements into wireframes and high-fidelity prototypes, Solid understanding of SDLC, Experience with front-end architecture and Design Patterns, Strong troubleshooting and problem-solving skills, Familiarity with CI/CD and DevOps practices 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, SDLC, CI/CD, DevOps, UX, UI, Architecture, Prototyping, Wireframing, DesignPatterns 🏢 Description: Unleash innovation in front-end development — shape the future of seamless UI experiences! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior ReactJS UI Engineer – Front-End Architecture & UX Optimization , you will be working for our client, a leading technology company focused on delivering cutting-edge web applications. You will drive UI enhancements, architect scalable front-end solutions, and optimize user experience to ensure high performance and stability across platforms—contributing to innovative projects that impact users worldwide. Your main responsibilities: Lead UI enhancements and improvements to elevate overall UX and application stability Participate in designing robust front-end architecture aligned with best practices Implement solutions utilizing proven Design Patterns for scalable and maintainable code Analyze requirements thoroughly to suggest improvements and optimizations Manage changes effectively throughout the Service management lifecycle Develop and prototype application features to validate concepts and designs Provide prompt and effective support to address and resolve user issues Collaborate with cross-functional teams to deliver high-quality solutions You're ideal for this role if you have: 7+ years of professional experience in production React ecosystem applications, including UI/UX design Strong proficiency in React and TypeScript Web development Proven experience in translating product requirements into wireframes and high-fidelity prototypes Solid understanding of the Software Development Life Cycle (SDLC) Exceptional troubleshooting and problem-solving skills in high-pressure environments Familiarity with DevOps practices like CI/CD pipelines It is a strong plus if you have: (optional) Experience with modern UI design tools and frameworks Certifications related to React, TypeScript, or Front-End architecture Language Required for the role: Fluent English command, both written and spoken Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER