Senior Full Stack .NET Developer – Workforce Management Applications

🏢 Summary: Senior Full Stack .NET Developer role focused on building and enhancing a next-generation Workforce Management platform in a hybrid Krakow-based setup. The position involves designing and developing a greenfield application, ensuring high code quality, scalability, and seamless deployment within a global financial environment. You will contribute to end-to-end full-stack development using modern .NET technologies and frontend frameworks. 🗂️ Requirements: Minimum 8 years of full-stack software development experience, Proficiency in C#, Experience with .NET 6 or later, Strong experience with Microsoft SQL Server, Experience with MVC and Web API, Frontend development experience with HTML, CSS, JavaScript, Experience with React or Angular, Strong knowledge of object-oriented programming, Understanding of design patterns and scalable architecture, Experience with automated testing, Experience with CI/CD pipelines, Experience with Git version control 📃 Skills: CSharp, DotNet, SQLServer, MVC, WebAPI, HTML, CSS, JavaScript, React, Angular, OOP, CICD, Git 🏢 Description: Unleash pioneering innovation — drive the future of workforce management with cutting-edge solutions! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Full Stack .NET Developer , you will be working for our client, a global leader in the financial industry, supporting the transition and enhancement of the Workforce Management platform. Your expertise will help shape the development of ComPass, the next-generation application designed to elevate operational efficiency and deliver seamless user experiences. Join an environment that values innovation, collaboration, and professional growth. Your main responsibilities: Translate application requirements and use cases into functional features, ensuring alignment with business needs. Design, build, and maintain efficient, reusable, and reliable code for the greenfield application. Maintain excellent code quality and performance standards across all project deliverables. Identify, troubleshoot, and resolve bottlenecks and bugs proactively. Support the testing, deployment, and productionisation of new features and solutions. Collaborate with cross-functional teams to ensure high-quality technical standards. Contribute to the ongoing development of scalable and maintainable .NET solutions. You're ideal for this role if you have: Minimum of 8 years of experience in full-stack software development. Proficiency in C# with strong knowledge of its ecosystem. Experience with .NET 6 or later versions. Solid expertise with Microsoft SQL Server. Familiarity with MVC and Web API. Frontend development skills including HTML, CSS, JavaScript, and modern frameworks/libraries like React or Angular. Strong understanding of object-oriented programming, design patterns, and scalable architecture. Experience with automated testing, CI/CD pipelines, and version control tools such as Git. Full professional proficiency in English. It is a strong plus if you have: Certifications in Microsoft technologies or software architecture. Experience with cloud platforms such as Azure or AWS. Language required for the role: Fluent English (full professional proficiency). 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 Full Stack C# .NET Developer role focused on building and enhancing workforce management applications within the financial services sector. The position involves developing greenfield features for a modern HR platform, ensuring high-quality, scalable, and performant .NET solutions. It offers a hybrid work model in Krakow and emphasizes technical excellence and collaboration. 🗂️ Requirements: Minimum 8 years of software development experience, Proficiency in C#, Experience with .NET 6+, Strong knowledge of Microsoft SQL Server, Experience with MVC architecture, Experience with Web API, Experience with React or Angular, Experience with Git, Knowledge of object-oriented programming, Understanding of scalable architecture patterns, Experience with automated testing, Experience with CI/CD pipelines, Fluent English, Legal right to work in the European Union 📃 Skills: C#, .NET, SQL, SQLServer, MVC, WebAPI, React, Angular, Git, OOP, CI/CD, Azure, AWS 🏢 Description: Unleash your expertise in building impactful workforce solutions — drive innovation at the forefront of HR technology! Krakow-based opportunity with a hybrid work model. As a Senior Full Stack C# .NET Developer , you will be working for our client in the financial services industry, supporting the transition and enhancement of workforce management applications. You will help develop and deliver cutting-edge features for ComPass, a greenfield platform transforming how organizations manage their workforce. This role offers a dynamic environment for professional growth and technical excellence. Your main responsibilities: Translate application requirements and use cases into functional features. Design, build, and maintain efficient, reusable, and reliable code. Maintain excellent code quality and ensure optimal performance and responsiveness of applications. Identify bottlenecks and bugs, devising effective solutions. Support the ongoing development and production deployment of .NET solutions. Collaborate with cross-functional teams to ensure seamless integration and functionality. Contribute to testing strategies and ensure delivery of a high-quality product. You're ideal for this role if you have: At least 8 years of experience in software development. Proficiency in C# and .NET (including .NET 6+). Strong knowledge of Microsoft SQL Server. Familiarity with MVC, Web API, and frontend frameworks such as React or Angular. Experience with version control tools like Git. Solid understanding of object-oriented programming and scalable architecture patterns. Experience with automated testing, CI/CD pipelines, and reusable library creation. Full professional proficiency in English. It is a strong plus if you have: Certification or experience in advanced .NET architectures. Knowledge of cloud platforms (Azure, AWS). Experience working in agile teams. Language Required for the role: Fluent in English. 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 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: Mid-Level Fullstack .NET Developer role focused on building and maintaining scalable web applications within a microservices architecture. The position involves developing robust REST APIs, implementing automated testing, and contributing to CI/CD processes in a hybrid work model. You will work with modern .NET and Angular technologies to deliver high-quality, enterprise-grade systems. 🗂️ Requirements: Minimum 3 years of full stack development experience, Strong knowledge of C# and .NET Core, Practical experience with Angular, Experience with REST API development, Experience with microservice architecture, Experience with automated testing (unit, E2E), Knowledge of SOLID principles and design patterns, Experience with Docker and Kubernetes, Experience with MSSQL and PostgreSQL, Experience with CI/CD pipelines and related tools, Familiarity with JIRA, TeamCity, Jenkins, git, Communicative Polish, Legal right to work in the EU 📃 Skills: C#, .NET, Angular, REST, Microservices, Docker, Kubernetes, MSSQL, PostgreSQL, Git, Jenkins, TeamCity, JIRA, CI/CD, SOLID 🏢 Description: Ignite the Future of Digital Innovation — Shape Powerful, Scalable Systems with Cutting-Edge Technologies! Warszawa-based opportunity with hybrid work model (up to 4 days remote per week). As a Mid-Level Fullstack .NET Developer , you will be working for our client, a forward-thinking leader in the software industry dedicated to delivering innovative solutions. Your expertise will contribute to designing and implementing robust, microservice-based systems, empowering businesses to thrive in a digital landscape. Join us and be part of a dynamic environment where your skills fuel impactful projects and career growth. Your main responsibilities: Develop and maintain scalable web applications using .NET Core, C#, and Angular. Write automated unit and E2E tests to ensure high-quality deliverables. Apply SOLID principles, design patterns, IoC, and DI to create maintainable code. Design and implement REST APIs within microservice architecture. Collaborate with cross-functional teams utilizing JIRA, TeamCity, Jenkins, and version control systems like git/bitbucket. Support and optimize database interactions with MSSQL and PostgreSQL. Participate in continuous integration and delivery processes (SSDLC, CI/CD tools). You're ideal for this role if you have: Minimum of 3 years of professional experience in full stack development. Practical knowledge of C#, .NET Core, Angular. Experience with Docker and Kubernetes. Experience with automated testing, SOLID, design patterns, and REST API development. Familiarity with MS SQL, PostgreSQL, and microservice architecture. Knowledge of SSDLC, CI/CD pipelines, and tools such as JIRA, TeamCity, Jenkins, and git. It is a strong plus if you have: (optional) Certifications in cloud technologies or microservice architectures. Language Required for the role: Polish (Communicative level) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV in English or Polish, along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Mid-Level Fullstack .NET Developer role focused on building and maintaining scalable, microservice-based web applications in the online banking domain. The position involves developing REST APIs, implementing automated testing, and contributing to CI/CD processes within a hybrid work model. You will work with modern .NET and Angular technologies to deliver high-quality, robust systems. 🗂️ Requirements: Minimum 3 years of full stack development experience, Strong knowledge of C# and .NET Core, Practical experience with Angular, Experience with REST API development, Experience with microservice architecture, Hands-on experience with Docker and Kubernetes, Experience with automated testing (unit and E2E), Knowledge of SOLID principles and design patterns, Experience with MS SQL and PostgreSQL, Familiarity with CI/CD pipelines and SSDLC, Experience with Git-based version control, Good command of Polish, Legal right to work in the EU 📃 Skills: C#, .NET, Angular, REST, Microservices, Docker, Kubernetes, MSSQL, PostgreSQL, Git, Jenkins, TeamCity, JIRA, CI/CD, SSDLC 🏢 Description: Ignite the future of digital innovation — shape powerful, scalable systems with cutting-edge technologies! Warsaw-based opportunity with hybrid work model (2 days in the office / month). As a Mid-Level Fullstack .NET Developer , you will be working for our client, a leader in the online banking industry dedicated to delivering innovative solutions. Your expertise will contribute to designing and implementing robust, microservice-based systems, empowering businesses to thrive in a digital landscape. Join us and be part of a dynamic environment where your skills fuel impactful projects and career growth. Your main responsibilities: Develop and maintain scalable web applications using .NET Core, C#, and Angular. Write automated unit and E2E tests to ensure high-quality deliverables. Apply SOLID principles, design patterns, IoC, and DI to create maintainable code. Design and implement REST APIs within microservice architecture. Collaborate with cross-functional teams utilizing JIRA, TeamCity, Jenkins, and version control systems like git/bitbucket. Support and optimize database interactions with MSSQL and PostgreSQL. Participate in continuous integration and delivery processes (SSDLC, CI/CD tools). You're ideal for this role if you have: Minimum of 3 years of professional experience in full stack development. Practical knowledge of C#, .NET Core, Angular. Hands-on experience with Docker and Kubernetes. Experience with automated testing, SOLID principles, design patterns, and REST API development. Familiarity with MS SQL, PostgreSQL, and microservice architecture. Knowledge of SSDLC, CI/CD pipelines, and tools such as JIRA, TeamCity, Jenkins, and git. It is a strong plus if you have: (optional) Experience with cloud platforms like Azure or AWS. Certifications in microservices or cloud technologies. Language required for the role: Good command of 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 Full Stack Developer role in a hybrid model (Kraków) focused on building and maintaining scalable, mission-critical financial applications. The position involves end-to-end development, from analysis to deployment and support, using Java, React, and SQL. You will contribute to high-quality full-stack solutions while ensuring performance, stability, and adherence to best practices. 🗂️ Requirements: Minimum 5 years of full-stack development experience, Proficiency in Java, Proficiency in SQL, Proficiency in React, Working knowledge of UNIX environments, Understanding of HTTP APIs and RESTful services, Experience with end-to-end software development lifecycle, Fluent English, Legal right to work in the European Union 📃 Skills: Java, React, SQL, Kotlin, UNIX, HTTP, REST, DevOps 🏢 Description: Unleash Innovation — Drive Impact as a Senior Full Stack Developer in Kraków! Kraków-based opportunity with hybrid work model (up to 3 days remote). As a Senior Full Stack Developer , you will be working for our client, a leader in Global Markets Technology, focused on delivering robust, scalable solutions that empower financial services worldwide. Join a dynamic team where your expertise will shape mission-critical applications, enhance operational efficiency, and foster digital transformation. Your main responsibilities: Collaborate within a dedicated team of 4–6 developers, taking ownership of all development phases from analysis to deployment and support. Break down business requirements into user stories and deliver iterative enhancements to production. Design, develop, and optimize full-stack solutions using Java, React, and SQL, ensuring high-quality code and adherence to best practices. Identify and address technical debt, balancing new features with system stability and performance. Participate in pair programming and code reviews to foster knowledge sharing and code excellence. Support existing applications post-deployment, ensuring continuous functionality and performance improvements. Follow technology guidelines and constraints, ensuring solutions are scalable, maintainable, and aligned with project standards. You're ideal for this role if you have: At least 5 years of professional experience in full-stack development or related fields. Strong proficiency in Java, SQL, and React; familiarity with Kotlin is a plus. Working knowledge of UNIX environments. Good understanding of HTTP APIs, particularly RESTful services. Demonstrated willingness to learn new programming languages and frameworks. Excellent communication skills in English. It is a strong plus if you have: Experience with DevOps practices or familiarity with other programming languages. Relevant certifications or training related to full-stack development. Language Required for the role: Fluent English (verbal and written). Eligibility to work in 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 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,