Senior Fullstack Engineer – .NET and React - Analytics Platform

🏢 Summary: Senior Fullstack Engineer role focused on .NET and React development for enterprise-grade applications, driving scalable backend services and modern UI solutions. The position involves leading architectural decisions, enhancing CI/CD processes, and improving application performance and user experience. Candidates will contribute across the full SDLC while supporting digital transformation initiatives. 🗂️ Requirements: Minimum 7 years of professional experience in .NET production development, Strong experience with C# and Web API, Hands-on experience with React, Advanced SQL skills with SQL Server and T-SQL, Experience with DevOps practices and CI/CD processes, Solid understanding of SDLC, Fluent English (written and spoken), Legal right to work in the European Union 📃 Skills: .NET, C#, WebAPI, React, SQL, SQLServer, T-SQL, DevOps, CI/CD, Docker, Kubernetes 🏢 Description: Unleash innovation — shape the future of enterprise applications. Krakow-based opportunity with hybrid work model. As a Senior Fullstack Engineer – .NET and React Development , you will be working for our client, a leader in enterprise software solutions, dedicated to delivering robust, scalable, and innovative digital tools. Your expertise will drive the development of cutting-edge applications that empower businesses worldwide, supporting their digital transformation journeys. Your main responsibilities: Implement solutions following best Design Patterns to ensure maintainability and scalability Analyze requirements to fully understand solutions and recommend improvements for optimal performance Lead UI enhancements and improvements to boost user experience and application stability Actively participate in DevOps automation and improve the CI/CD lifecycle processes Manage changes through the entire service management lifecycle, ensuring seamless updates Contribute to software architecture design and technical decision-making Develop and prototype applications to validate concepts and designs Provide exceptional customer support by addressing and resolving issues promptly Communicate effectively with clients to understand needs and deliver tailored solutions You're ideal for this role if you have: A minimum of 7 years of professional experience in production application development within .NET ecosystems, including front-end (preferably React) and DevOps practices Proficiency in C# and Web API development, with a focus on scalable, secure backend services Strong hands-on experience with React, building dynamic, responsive web applications Advanced SQL skills, particularly with SQL Server, including T-SQL scripting, query optimization, and performance tuning Solid understanding of the SDLC, from requirement gathering to deployment and maintenance Exceptional problem-solving abilities and an eye for detail to ensure high-quality deliverables It is a strong plus if you have: (optional) Certifications in cloud or DevOps tools Experience with containerization (e.g., Docker, Kubernetes) Language Required for the role: Fluent English (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 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 Fullstack Engineer role focused on building and enhancing scalable enterprise applications using .NET and React within a hybrid Krakow-based setup. The position involves leading UI improvements, contributing to architecture and DevOps automation, and delivering high-quality, secure backend and frontend solutions. The engineer drives full SDLC activities, from design and development to deployment and support. 🗂️ Requirements: Minimum 7 years of professional experience in .NET production application development, Strong experience with React for frontend development, Proficiency in C# and Web API development, Advanced SQL Server skills including T-SQL and query optimization, Experience with DevOps practices and CI/CD processes, Solid understanding of SDLC, Fluent English, Legal right to work in the European Union 📃 Skills: .NET, C#, WebAPI, React, SQL, SQLServer, T-SQL, CI/CD, DevOps, Docker, Kubernetes 🏢 Description: Unleash innovation — shape the future of enterprise applications. Krakow-based opportunity with hybrid work model. As a Senior Fullstack Engineer – .NET and React Development , you will be working for our client, a leader in enterprise software solutions, dedicated to delivering robust, scalable, and innovative digital tools. Your expertise will drive the development of cutting-edge applications that empower businesses worldwide, supporting their digital transformation journeys. Your main responsibilities: Implement solutions following best Design Patterns to ensure maintainability and scalability Analyze requirements to fully understand solutions and recommend improvements for optimal performance Lead UI enhancements and improvements to boost user experience and application stability Actively participate in DevOps automation and improve the CI/CD lifecycle processes Manage changes through the entire service management lifecycle, ensuring seamless updates Contribute to software architecture design and technical decision-making Develop and prototype applications to validate concepts and designs Provide exceptional customer support by addressing and resolving issues promptly Communicate effectively with clients to understand needs and deliver tailored solutions You're ideal for this role if you have: A minimum of 7 years of professional experience in production application development within .NET ecosystems, including front-end (preferably React) and DevOps practices Proficiency in C# and Web API development, with a focus on scalable, secure backend services Strong hands-on experience with React, building dynamic, responsive web applications Advanced SQL skills, particularly with SQL Server, including T-SQL scripting, query optimization, and performance tuning Solid understanding of the SDLC, from requirement gathering to deployment and maintenance Exceptional problem-solving abilities and an eye for detail to ensure high-quality deliverables It is a strong plus if you have: (optional) Certifications in cloud or DevOps tools Experience with containerization (e.g., Docker, Kubernetes) Language Required for the role: Fluent English (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 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 Fullstack Engineer role focused on building and enhancing scalable enterprise applications using .NET and React in a hybrid Krakow-based setup. The position involves leading UI improvements, contributing to architecture and DevOps automation, and delivering high-quality backend and frontend solutions. You will drive end-to-end development from design to deployment while ensuring performance, stability, and maintainability. 🗂️ Requirements: Minimum 7 years experience in .NET application development, Strong experience with React for frontend development, Proficiency in C# and Web API, Advanced SQL Server and T-SQL skills, Experience with CI/CD and DevOps practices, Understanding of SDLC, Experience with design patterns and software architecture, Fluent English, Legal right to work in EU 📃 Skills: .NET, C#, React, WebAPI, SQL, SQLServer, T-SQL, CI/CD, DevOps, SDLC, Docker, Kubernetes 🏢 Description: Unleash innovation — shape the future of enterprise applications. Krakow-based opportunity with hybrid work model. As a Senior Fullstack Engineer – .NET and React Development , you will be working for our client, a leader in enterprise software solutions, dedicated to delivering robust, scalable, and innovative digital tools. Your expertise will drive the development of cutting-edge applications that empower businesses worldwide, supporting their digital transformation journeys. Your main responsibilities: Implement solutions following best Design Patterns to ensure maintainability and scalability Analyze requirements to fully understand solutions and recommend improvements for optimal performance Lead UI enhancements and improvements to boost user experience and application stability Actively participate in DevOps automation and improve the CI/CD lifecycle processes Manage changes through the entire service management lifecycle, ensuring seamless updates Contribute to software architecture design and technical decision-making Develop and prototype applications to validate concepts and designs Provide exceptional customer support by addressing and resolving issues promptly Communicate effectively with clients to understand needs and deliver tailored solutions You're ideal for this role if you have: A minimum of 7 years of professional experience in production application development within .NET ecosystems, including front-end (preferably React) and DevOps practices Proficiency in C# and Web API development, with a focus on scalable, secure backend services Strong hands-on experience with React, building dynamic, responsive web applications Advanced SQL skills, particularly with SQL Server, including T-SQL scripting, query optimization, and performance tuning Solid understanding of the SDLC, from requirement gathering to deployment and maintenance Exceptional problem-solving abilities and an eye for detail to ensure high-quality deliverables It is a strong plus if you have: (optional) Certifications in cloud or DevOps tools Experience with containerization (e.g., Docker, Kubernetes) Language Required for the role: Fluent English (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 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 .NET Fullstack Developer role focused on building scalable applications with React front-end and .NET backend while driving DevOps transformation and CI/CD optimization. The position combines full-stack development, architecture design, and automation within a data-driven DevOps environment. Hybrid work model with strong emphasis on engineering excellence and lifecycle management. 🗂️ Requirements: Minimum 7 years of experience in .NET production development, Strong proficiency in C# and Web API, Hands-on experience with React, Experience with SQL Server and T-SQL, Experience in CI/CD and DevOps automation, Knowledge of SDLC, Fluent English, Legal right to work in the EU 📃 Skills: .NET, C#, WebAPI, React, SQLServer, T-SQL, CI/CD, DevOps, Azure, Cloud, Docker, Kubernetes 🏢 Description: Unleash innovative solutions — shape the future of DevOps and full-stack excellence! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior .NET Fullstack Developer — React & DevOps Expertise , you will be working for our client, a leader in banking innovation, providing critical analytics and metrics that empower strategic transformation across engineering teams worldwide. Join a trailblazing team driving DevOps transformation through cutting-edge data, analytics, and practices—be a key driver of impactful change and technological evolution. Your main responsibilities: Implement solutions following best design patterns to ensure scalable and maintainable applications. Analyze requirements thoroughly and recommend improvements for optimal performance. Lead UI enhancements to elevate user experience and application stability. Actively participate in DevOps automation and optimize the CI/CD lifecycle. Contribute to software architecture design and develop application prototypes to validate concepts. Provide exceptional customer support by promptly addressing and resolving issues. Collaborate effectively with stakeholders to understand needs and deliver tailored solutions. You're ideal for this role if you have: Minimum of 7 years of professional experience in production application development within the .NET ecosystem, including React front-end development. Strong proficiency in C# and Web API development, with a focus on scalable and secure backend services. Hands-on experience with React, creating dynamic, interactive web applications. Expertise in database design, SQL Server, T-SQL scripting, and query optimization. Experience in DevOps activities like CI/CD, automation, and lifecycle management. Familiarity with the full Software Development Life Cycle (SDLC). Excellent problem-solving skills with high attention to detail under pressure. It is a strong plus if you have: Certifications in Azure, DevOps, or related fields. Experience with cloud platforms and containerization tools. Language Required for the role: Fluent 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 Fullstack Engineer role focused on designing and delivering scalable Java and React applications in a hybrid model. The position involves architecture design, backend and UI development, DevOps practices, and end-to-end SDLC ownership to build high-quality digital solutions. The role combines technical leadership, system optimization, and customer-focused problem solving. 🗂️ Requirements: 8+ years Java application development experience, Commercial experience with React frontend development, Strong Java and Web API development skills, Experience building scalable backend services, Advanced SQL knowledge with PostgreSQL, T-SQL scripting and query optimization, Experience with CI/CD pipelines, Strong understanding of SDLC, Fluent English, Legal right to work in the European Union 📃 Skills: Java, React, SQL, PostgreSQL, T-SQL, CI/CD, WebAPI, AWS, Azure, DevOps, SDLC 🏢 Description: Empower innovation at the forefront of software development — shape scalable solutions that transform user experiences! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Java & React Fullstack Engineer – Software Development , you will be working for our client, a leading technology company dedicated to delivering cutting-edge digital solutions. You’ll contribute to designing and building robust applications that enhance customer engagement and operational efficiency, fueling digital transformation and innovation. Your main responsibilities: Participate in software architecture design to ensure scalable, secure, and high-quality systems. Lead UI improvements and implement solutions to elevate UX and application stability. Develop according to best practices and Design Patterns to produce maintainable and efficient code. Analyze requirements thoroughly and recommend enhancements for optimal solutions. Create clear documentation to support ongoing development and maintenance. Develop and validate application prototypes to test concepts and user interactions. Manage changes throughout the Service Management lifecycle, supporting automation and continuous improvement initiatives. Provide exceptional customer support by promptly addressing and resolving technical issues. Communicate effectively to understand customer needs and deliver tailored solutions. You're ideal for this role if you have: 8+ years of professional experience in Java application development, including front-end (preferably React). Strong proficiency in Java, Web API development, and building scalable backend services. Solid SQL skills with PostgreSQL, including T-SQL scripting, query optimization, and performance tuning. Experience with DevOps practices such as CI/CD pipelines. Extensive knowledge of the SDLC, from requirements gathering to deployment and maintenance. Exceptional problem-solving skills and keen attention to detail to ensure high-quality deliverables and resolve complex issues efficiently. It is a strong plus if you have: Certifications in Java, React, or DevOps. Experience with cloud platforms such as AWS or Azure. Language Required for the role: Fluent English proficiency. 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. We offer you: ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions Enhance your skills and develop your expertise in the financial industry Work on the most strategic projects available in the market Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years Participation in Social Events, training, and work in an international environment Access to an attractive Medical Package Access to Multisport Program #GETREADY Internal job ID #8955 You can report violations in accordance with ITDS’s Whistleblower Procedure available here .

🏢 Summary: Senior Fullstack Engineer role focused on designing and delivering scalable, user-centric applications using Java and React in a hybrid Krakow-based model. The position involves shaping software architecture, enhancing UI/UX, optimizing databases, and supporting DevOps and Service Management processes. You will contribute to secure, high-performance systems supporting digital transformation initiatives. 🗂️ Requirements: 5+ years of experience in Java production application development, Commercial experience with React frontend development, Strong proficiency in Java and Web API development, Experience in building secure and scalable backend services, Expertise in database design with PostgreSQL, Experience with T-SQL scripting, Query optimization and performance tuning skills, Hands-on experience with CI/CD pipelines, Practical knowledge of DevOps practices, Strong understanding of SDLC, Fluent English, Legal right to work in the European Union 📃 Skills: Java, React, WebAPI, PostgreSQL, T-SQL, SQL, CI/CD, DevOps, SDLC 🏢 Description: Unleash innovation by shaping the future of software architecture and user experience! Krakow-based opportunity with hybrid work model, offering flexibility and dynamic collaboration. As a Senior Fullstack Engineer – Java and React Development , you will be working for our client in the technology industry, focusing on designing scalable, efficient, and user-centric applications. You will contribute to creating cutting-edge solutions that enhance UX, application stability, and operational efficiency, supporting the digital transformation journey. Your main responsibilities: Participating in software architecture design to build robust systems. Leading UI enhancements and improvements to elevate user experience and application stability. Implementing solutions following best Design Patterns for maintainability and scalability. Analyzing requirements to fully understand solutions and recommending data-driven improvements. Creating comprehensive documentation for developed solutions to ensure clarity and knowledge sharing. Developing and testing application prototypes to validate concepts and designs. Managing changes through the Service Management lifecycle, ensuring smooth transitions. Contributing actively to automation initiatives and Service Management process improvements. Providing exceptional customer support by addressing issues promptly and effectively. Communicating with customers to understand needs and deliver tailored solutions. You're ideal for this role if you have: At least 5 years of professional experience in production applications development in Java, including front-end development with React. Strong proficiency in Java and Web API development, with a focus on building secure, scalable backend services. Expertise in database design, particularly with PostgreSQL, T-SQL scripting, query optimization, and performance tuning. Hands-on experience with DevOps practices like CI/CD pipelines. Deep understanding of the Software Development Life Cycle (SDLC), from requirements gathering to deployment and maintenance. Exceptional problem-solving skills with keen attention to detail, ensuring high-quality deliverables. It is a strong plus if you have: Experience with cloud platforms (e.g., AWS, Azure). Certifications in Java, React, or DevOps tools. Language Required for the role: Fluent English, with excellent communication skills. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. We offer you: ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions Enhance your skills and develop your expertise in the financial industry Work on the most strategic projects available in the market Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years Participation in Social Events, training, and work in an international environment Access to an attractive Medical Package Access to Multisport Program #GETREADY Internal job ID #8954 You can report violations in accordance with ITDS’s Whistleblower Procedure available here .

🏢 Summary: Full Stack Java & React role focused on migrating banking reporting platforms to the cloud and building scalable web applications within a microservices architecture. The position involves cloud transformation, REST API development, and collaboration in an agile, cross-country environment. It combines backend, frontend, cloud, and DevOps responsibilities in a financial domain context. 🗂️ Requirements: 3+ years experience in full-stack web application development, Experience with microservices architecture, Proficiency in Java 17+, Strong knowledge of Spring and Spring Boot, Experience in RESTful API development, Experience with ReactJS, Proficiency in JavaScript and TypeScript, Hands-on experience with Google Cloud Platform, Experience with relational databases or data warehouses, Experience with Git and SCM systems, Understanding of CI/CD pipelines, Knowledge of Jenkins 📃 Skills: Java, Spring, SpringBoot, REST, ReactJS, JavaScript, TypeScript, GCP, PostgreSQL, BigQuery, AlloyDB, Git, GitHub, Jenkins, CI/CD, Microservices, ApacheECharts 🏢 Description: Unleash innovation at the intersection of cloud, data, and full-stack development — shape the future of banking technology! Krakow-based opportunity with hybrid work model (up to 3 days remote per week). As a Java & React Full Stack Developer , you will be working for our client, a leading global financial institution, supporting the transformation of their data and reporting systems within the International Wealth & Premier Banking division. You will be instrumental in migrating critical reporting platforms to the cloud and developing scalable, web-based applications that enhance decision-making and operational efficiency. Join a dynamic team committed to technological excellence and career growth in the finance sector. Your main responsibilities: Independently design, develop, test, and deploy web applications in a collaborative, cross-country environment. Support the migration of existing reporting systems to cloud-based platforms, ensuring seamless transition and minimal disruption. Mentor and guide team members, facilitating knowledge transfer and best practices for technology stack evolution. Ensure development adherence to IT methodologies, security standards, and documentation requirements. Work in an agile environment to deliver high-quality features aligned with client needs. You're ideal for this role if you have: 3+ years of experience in delivering large-scale full-stack web applications with microservice architecture. Strong proficiency in Java (Java 17+ preferred), Spring/Spring Boot, and RESTful API development. Expertise in ReactJS, JavaScript, and TypeScript. Hands-on experience with Google Cloud Platform products. Working knowledge of relational databases/data warehouses such as PostgreSQL, BigQuery, or AlloyDB. Experience with Git and SCM systems like GitHub. Knowledge of data visualization tools (e.g., Apache ECharts) is an advantage. Understanding of CI/CD pipelines, particularly Jenkins. It is a strong plus if you have: Certifications or experience in cloud architecture or DevOps practices. We offer you: ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions Enhance your skills and develop your expertise in the financial industry Work on the most strategic projects available in the market Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years Participation in Social Events, training, and work in an international environment Access to an attractive Medical Package Access to Multisport Program #GETREADY Internal job ID #8678 You can report violations in accordance with ITDS’s Whistleblower Procedure available here .

🏢 Summary: Senior Fullstack .NET Developer role focused on modernizing a legacy business process management platform within a digital banking environment. The position involves rebuilding applications from .NET Framework to modern .NET, developing React frontend components, and deploying scalable solutions to Kubernetes. You will contribute to system design, automated testing, and AI-assisted development in an enterprise Agile setup. 🗂️ Requirements: 5+ years of experience with C# and .NET, Experience modernizing legacy applications from .NET Framework, Strong knowledge of React, Practical experience with LLM tools (Claude, Codex), Experience with automated testing, Hands-on experience with Docker and Kubernetes, Experience designing and implementing enterprise applications, Strong knowledge of MS SQL, Experience with Git, JIRA, and TeamCity 📃 Skills: CSharp, DotNet, DotNetFramework, React, Kubernetes, Docker, MSSQL, Git, JIRA, TeamCity, Claude, Codex, Agile 🏢 Description: Unleash innovative web solutions — shape the future of digital banking experiences! Łódź-based opportunity with hybrid work model (2 days in the office/month). As a Senior Fullstack .NET React Developer , you will be working for our client, a leading financial institution focused on delivering innovative digital banking solutions. You will join a strategic modernization initiative involving the redevelopment of a business process management platform. The project focuses on rebuilding legacy applications from .NET Framework to modern .NET technologies, migrating infrastructure from on-premises environments to Kubernetes, and implementing high-quality engineering practices. You will collaborate closely with AI-powered development tools, contribute to system design decisions, and help deliver scalable, secure, and maintainable solutions in a complex enterprise environment. Your main responsibilities: Develop and maintain backend services using .NET and C# Rebuild legacy applications from .NET Framework to modern .NET architecture Design and implement frontend components using React Create and maintain automated unit and regression tests Collaborate with business stakeholders to analyze and refine requirements Design scalable and maintainable software solutions Integrate applications with databases and external services Utilize LLM-based tools such as Claude and Codex to support software development activities Participate in code reviews and ensure adherence to development standards Deploy and support applications running in Kubernetes environments Work closely with cross-functional teams in an Agile delivery model You're ideal for this role if you have: At least 5 years of experience in software development using C# and .NET Experience with .NET Framework and modernizing legacy code Good knowledge of React Practical experience working with LLM tools such as Claude and Codex Strong experience with automated testing Hands on experience with Docker and Kubernetes Experience designing and implementing enterprise applications Strong knowledge of MS SQL Experience using Git, JIRA, and TeamCity Ability to work independently while collaborating effectively within a team English skills sufficient to write and understand technical documentation Nice to have: Knowledge of message brokers, especially RabbitMQ,

🏢 Summary: Senior React expert role focused on building and enhancing analytical and collaborative DevOps products with scalable front-end architecture. The position involves leading UI improvements, implementing robust design patterns, and driving high-performance web solutions within a full SDLC environment. The role also includes CI/CD-driven DevOps practices and delivering innovative, user-centric interfaces. 🗂️ Requirements: Minimum 7 years experience in React ecosystem, Strong proficiency in React, Strong proficiency in TypeScript, Experience with UI/UX design, Experience designing scalable front-end architecture, Experience with SDLC processes, Experience with CI/CD practices, Ability to translate requirements into wireframes and prototypes, Strong troubleshooting skills in high-pressure environments 📃 Skills: React, TypeScript, SDLC, CI, CD, DevOps, UI, UX, DesignPatterns, Wireframing, Prototyping, Architecture, Troubleshooting 🏢 Description: Empower innovation at the forefront of DevOps and analytics — shape the future of engineering excellence! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As an Expert React Frontend Developer – DevOps & Analytics , you will join our CTO Platforms DevX team, spearheading the development of analytical and collaborative products that transform DevOps practices across the bank. Your work will influence critical insights and drive organizational change through innovative UI solutions. Your main responsibilities: Leading UI enhancements to boost user experience and application stability Participating in designing scalable front-end architecture Implementing solutions based on best Design Patterns Analyzing requirements to recommend improvements and innovative solutions Managing changes across the application lifecycle through service management processes Developing prototypes to validate concepts and designs Providing exceptional customer support by promptly resolving issues Communicating effectively to understand client needs and deliver tailored solutions You're ideal for this role if you have: A minimum of 7 years of professional experience in React ecosystem, including UI/UX design and troubleshooting in high-pressure environments Proficiency in React and TypeScript for building dynamic, high-performance web applications Experience translating product requirements into wireframes and high-fidelity prototypes Hands-on experience with the SDLC—requirements gathering, design, development, testing, deployment, and maintenance Exceptional problem-solving skills and attention to detail Experience with DevOps activities like continuous integration and delivery It is a strong plus if you have: (optional) Certification or experience in related DevOps tools or practices Language required for the role: Fluent in Polish Eligibility to work in Europe: 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 components for a financial services environment. The position involves delivering high-quality, accessible, and performance-optimized front-end solutions aligned with a design system. You will collaborate with cross-functional teams to enhance shared components and support product teams with robust platform solutions. 🗂️ Requirements: 5+ years React frontend development experience, Strong JavaScript and TypeScript expertise, Experience building scalable frontend applications, Experience creating and maintaining NPM packages, Proficiency in unit and E2E testing, Advanced Git version control skills, Knowledge of WCAG accessibility standards, Experience with Jira Confluence Bitbucket, Good Polish and communicative English, Legal right to work in the EU 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, TestingLibrary, Cypress, Git, WCAG, Jira, Confluence, Bitbucket, Microfrontend, ReactNative, Capacitor, WebView 🏢 Description: Unleash innovation at scale — shape the future of front-end technology! Warszawa-based opportunity with hybrid work model (2 days from the office) As a Senior React Front-End Developer – Financial Services , 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. Excellent command of writing and maintaining unit and E2E tests (e.g., Jest, Testing Library, Cypress). Proficiency in Git version control, including branch management and advanced operations (rebase, cherry-pick, revert, squash). Good understanding of Web Accessibility (WCAG standards) and inclusive design principles. 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. We offer you: ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions. Enhance your skills and develop your expertise in various industries. Work on the most strategic projects available in the market. Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years. Participate in Social Events, training, and work in an international environment. Access to attractive Medical Package. Access to Multisport Program. Access to Pluralsight. Flexible hours & remote work. You can report violations in accordance with ITDS’s Whistleblower Procedure available here . Ref. number 8871