Fullstack Engineer .Net React

🏢 Summary: Senior Full Stack Engineer role focused on building and evolving analytics and metrics platforms supporting DevOps transformation. The position involves designing architecture, developing scalable backend services in .NET, and delivering high-performance React-based UIs. The engineer will contribute to CI/CD practices, service management improvements, and technical documentation in a global environment. 🗂️ Requirements: Minimum 7 years of experience in .NET development, Strong expertise in C#, Experience with Web API development, Hands-on experience with React, Ability to build scalable and secure backend services, Strong SQL Server and database design skills, Advanced T-SQL knowledge, Experience with CI/CD practices, Understanding of SDLC, Knowledge of HTML5 and CSS, Experience with responsive UI development 📃 Skills: .NET, C#, WebAPI, React, SQL, SQLServer, T-SQL, CI/CD, HTML5, CSS, SDLC, DevOps 🏢 Description: Senior Full Stack Engineer (.NET + React) B2B | 6 days per month from Kraków office We have a unique opportunity for you to join  team, which delivers metrics and analytical products that drive DevOps transformation across the bank. We provide key performance measures for engineering teams worldwide, along with critical insights that leadership relies on to shape and execute strategic initiatives. As we continue to evolve, we are looking for a Senior Full Stack Engineer (.NET + React) to join us in the next stage of our journey. 🚀 Responsibilities Participate in software architecture design Lead UI changes and improvements to enhance UX and application stability Implement solutions following best design patterns Analyze requirements to fully understand solutions and recommend improvements Create clear and comprehensive technical documentation Develop prototypes to validate concepts and designs Manage changes across the Service Management lifecycle Actively contribute to automation and continuous improvement of Service Management processes Provide high-quality customer support by resolving issues promptly Communicate effectively with stakeholders to understand needs and deliver solutions 🛠 Requirements Minimum 7 years of professional experience in .NET application development, including frontend (preferably React) Strong expertise in C# and Web API development Proven ability to build scalable, secure, and efficient backend services Hands-on experience with React , building dynamic and high-performance web applications Strong database design skills and experience with SQL Server (advanced T-SQL, optimization, performance tuning) Experience with DevOps practices (CI/CD) Solid understanding of the Software Development Life Cycle (SDLC) Good knowledge of HTML5, CSS , and responsive UI development Excellent problem-solving skills and attention to detail 🌍 What we offer Opportunity to influence DevOps transformation in a global organization Work with large-scale data and analytics solutions Collaboration with international teams Ability to shape architecture and engineering standards Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Senior Full Stack Developer role focused on designing, building, and supporting high-performance web applications using React and Java. The position involves end-to-end ownership of features, architectural decision-making, and working within Agile and DevOps environments. The role also includes maintaining reliable, scalable systems in the FX and banking domain. 🗂️ Requirements: Extensive experience in full stack development, Strong expertise in Java, Strong expertise in React, Strong knowledge of HTML, Experience in Agile environments, Experience in DevOps-oriented environments, Experience designing and supporting high-performance web applications, Ability to make architectural decisions, Experience with CI/CD pipelines 📃 Skills: Java, React, HTML, Agile, DevOps, CI/CD, Microservices, PostgreSQL, Linux 🏢 Description: Senior Full Stack Developer We’re looking for a Senior Full Stack Developer to join our team and help shape the next generation of our products. Reporting to the Development Manager, you’ll take real ownership of features and systems, working hands-on across the entire development lifecycle — from early design decisions to production support. This is a hybrid role, with work from our Kraków office 1–2 days per week. What you’ll be doing: Leading the design, development, and evolution of high-performance web applications using React, Java, and HTML. Owning features end-to-end, from requirements and technical design through delivery and production support. Partnering closely with product owners and engineers to define solutions that balance business needs with long-term technical health. Applying deep domain knowledge in FX and banking to build scalable, business-critical functionality. Driving best practices in Agile delivery, DevOps, and CI/CD pipelines. Tackling complex technical challenges and making sound architectural decisions. Supporting and improving live services with a strong focus on reliability, performance, and quality. Actively contributing to sprint planning, code reviews, and technical discussions — and raising the bar for the team. What we’re looking for: Extensive experience as a Full Stack Developer with strong expertise in Java, React and HTML. A solid software engineering background and an engineering-led approach to problem solving. Proven experience working in Agile teams and DevOps-oriented environments. Ability to work independently, make technical decisions, and take full ownership of the systems you build. Excellent communication skills and the confidence to collaborate with both technical and non-technical stakeholders. A proactive mindset — you spot problems early and drive improvements without being asked. Nice to have: Experience with financial platforms or trading systems. Hands-on exposure to microservices architecture, PostgreSQL, and Linux environments. Previous experience mentoring other engineers or influencing technical direction. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Senior Full Stack Developer role focused on designing and delivering high-performance web applications using Java and React. The position involves end-to-end ownership of features, architectural decision-making, and support of production systems within Agile and DevOps environments. The role combines hands-on development with technical leadership across the full software lifecycle. 🗂️ Requirements: Extensive experience as Full Stack Developer, Strong expertise in Java, Strong expertise in React, Strong expertise in HTML, Solid software engineering background, Experience working in Agile teams, Experience in DevOps-oriented environments, Ability to make architectural decisions, Ability to independently own end-to-end feature delivery 📃 Skills: Java, React, HTML, Agile, DevOps, CI/CD 🏢 Description: Senior Full Stack Developer We’re looking for a Senior Full Stack Developer to join our team and help shape the next generation of our products. Reporting to the Development Manager, you’ll take real ownership of features and systems, working hands-on across the entire development lifecycle — from early design decisions to production support. This is a hybrid role, with work from our Kraków office 1–2 days per week. What you’ll be doing: Leading the design, development, and evolution of high-performance web applications using React, Java, and HTML. Owning features end-to-end, from requirements and technical design through delivery and production support. Partnering closely with product owners and engineers to define solutions that balance business needs with long-term technical health. Applying deep domain knowledge in FX and banking to build scalable, business-critical functionality. Driving best practices in Agile delivery, DevOps, and CI/CD pipelines. Tackling complex technical challenges and making sound architectural decisions. Supporting and improving live services with a strong focus on reliability, performance, and quality. Actively contributing to sprint planning, code reviews, and technical discussions — and raising the bar for the team. What we’re looking for: Extensive experience as a Full Stack Developer with strong expertise in Java, React and HTML. A solid software engineering background and an engineering-led approach to problem solving. Proven experience working in Agile teams and DevOps-oriented environments. Ability to work independently, make technical decisions, and take full ownership of the systems you build. Excellent communication skills and the confidence to collaborate with both technical and non-technical stakeholders. A proactive mindset — you spot problems early and drive improvements without being asked. Nice to have: Experience with financial platforms or trading systems. Hands-on exposure to microservices architecture, PostgreSQL, and Linux environments. Previous experience mentoring other engineers or influencing technical direction. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: B2B/UoP offer for a Senior Full Stack Engineer to develop and maintain critical Cyber Security and Identity & Access Management systems in a large international organization. The role involves building scalable full stack solutions using .NET and Angular within Agile and DevOps practices. You will design system components, work with microservices and cloud technologies, and ensure high quality through automated testing. 🗂️ Requirements: Minimum 5 years of commercial experience, Very good knowledge of C#, Very good knowledge of .NET Framework, Very good knowledge of MSSQL, Very good knowledge of Angular, Knowledge of IAM concepts, Experience with Microservices, Experience with REST APIs, Experience with Cloud technologies, Practical knowledge of Scrum, Practical knowledge of DevOps, Experience with automated testing (TDD/BDD), Knowledge of system architecture 📃 Skills: C#, .NET, MSSQL, Angular, IAM, Microservices, REST, Cloud, Scrum, DevOps, TDD, BDD, Architecture 🏢 Description: Senior Full Stack Engineer (.NET + Angular) Tryb pracy: hybryda 6dni/miesiąc w biurze Klienta w Krakowie Forma współpracy: B2B/UOP O projekcie Dołącz do zespołu rozwijającego rozwiązania z obszaru Cyber Security i Identity & Access Management (IAM) . Pracujemy nad krytycznymi systemami odpowiadającymi za zarządzanie dostępem i tożsamością w dużej, międzynarodowej organizacji. Tworzymy nowoczesne, skalowalne rozwiązania w oparciu o podejście Agile i DevOps, stawiając na automatyzację, jakość i innowacje. Twoje zadania Analiza wymagań biznesowych i proponowanie rozwiązań Tworzenie, rozwój i utrzymanie aplikacji (full stack) Pisanie czytelnego, wydajnego i dobrze udokumentowanego kodu Projektowanie komponentów systemu (aplikacja + baza danych) Testowanie i zapewnienie jakości rozwiązań Współpraca ze stakeholderami i zespołami technicznymi Wspieranie inicjatyw transformacyjnych w organizacji Praca w środowisku Agile / DevOps Wymagania Min. 5 lat doświadczenia komercyjnego Bardzo dobra znajomość: C# / .NET Framework MS SQL Server Angular Znajomość koncepcji Identity & Access Management (IAM) Doświadczenie z: mikroserwisami REST API technologiami chmurowymi Praktyczna znajomość Scrum i DevOps Doświadczenie w testach automatycznych (TDD/BDD) Znajomość architektury systemów IT Bardzo dobra znajomość języka angielskiego Mile widziane: Azure DevOps Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska. Sprawdź inne aktualne oferty pracy na: https://antal.pl/dla-kandydata Zaobserwuj nasz profil na LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: B2B role for a Senior/Regular Full Stack Engineer to build and migrate end-to-end web applications in a banking environment using modern Java and React stack with Google Cloud. The position involves developing, testing and deploying applications, migrating BI reporting solutions to cloud, and working in an international team with strong focus on best practices and security. 🗂️ Requirements: Experience building large-scale web applications, Strong Java 17+ knowledge, Experience with Spring or Spring Boot, Experience designing and developing REST APIs, Strong React experience, Good knowledge of JavaScript and TypeScript, Experience with Google Cloud Platform, Experience with relational databases, Experience with data warehouses, Knowledge of Git, Experience with CI/CD pipelines 📃 Skills: Java, Spring, SpringBoot, REST, React, JavaScript, TypeScript, GCP, PostgreSQL, BigQuery, AlloyDB, Git, GitHub, Jenkins, CI/CD, ApacheECharts 🏢 Description: Senior Full Stack Engineer - Java/ React Hybryda 2 dni/ tydzień biuro Klienta - Kraków Współpraca B2B Dla naszego klienta z branży bankowej - globalnej organizacji o ogromnej skali działania - szukamy Senior oraz Regular Fullstack Engineerów , którzy chcą pracować przy nowoczesnych rozwiązaniach technologicznych i systemach wykorzystywanych przez miliony klientów na świecie. Jeśli szukasz projektu, w którym masz realny wpływ, pracujesz z nowoczesnym stackiem i rozwijasz się w międzynarodowym środowisku - czytaj dalej. Czym będziesz się zajmować? Tworzeniem aplikacji webowych end-to-end (projekt, development, testy, wdrożenie) Pracą w międzynarodowym zespole, ale też samodzielnym prowadzeniem tematów Migracją obecnych rozwiązań raportowych z narzędzi BI do środowiska chmurowego Wspieraniem zespołu w zmianie stacku technologicznego i dzieleniem się wiedzą Pracą zgodnie z dobrymi praktykami programistycznymi, standardami bezpieczeństwa i wymaganiami biznesowymi Kogo szukamy? Osób z doświadczeniem w budowie większych aplikacji webowych, które dobrze czują się w roli Fullstack Developera . Ważne technologie i umiejętności: Java (najlepiej 17+) + Spring / Spring Boot REST API React, JavaScript, TypeScript Google Cloud Platform - warunek konieczny Bazy danych i hurtownie danych (np. PostgreSQL, BigQuery, AlloyDB) Git (np. GitHub) CI/CD (np. Jenkins) Dodatkowy atut: doświadczenie w wizualizacji danych (np. Apache ECharts). Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska. Sprawdź inne aktualne oferty pracy na: https://antal.pl/dla-kandydata Zaobserwuj nasz profil na LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Full Stack Engineer role focused on building and scaling a global cloud-based platform using Node.js and TypeScript. The position involves designing scalable microservices, event-driven systems, and modern React/Next.js applications handling large volumes of real-time data. The engineer will contribute to architecture, API design, and system reliability across distributed systems. 🗂️ Requirements: 5+ years of software engineering experience, Strong expertise in Node.js, Strong expertise in TypeScript, Experience with event-driven architectures, Advanced knowledge of asynchronous programming, Experience designing and maintaining complex APIs, Strong experience with React and Next.js, Hands-on experience with automated testing frameworks, Experience with SQL and/or NoSQL databases, Familiarity with Elasticsearch or OpenSearch 📃 Skills: Node.js, TypeScript, React, Next.js, Kafka, RabbitMQ, SQL, NoSQL, Elasticsearch, OpenSearch, Jest, Vitest, Playwright, Microservices, APIs, EventDriven, Asynchronous, Testing, Architecture 🏢 Description: Senior Full Stack Engineer (Node.js & TypeScript) About the Role We are looking for a Senior Full Stack Engineer to join a team building and scaling a global cloud-based platform. In this role, you will work on both backend services and modern web applications, helping to design highly scalable systems that process large volumes of real-time data while delivering seamless user experiences. Responsibilities System Architecture Design and develop scalable microservices using Node.js and TypeScript. Ensure high availability, reliability, and low latency across distributed systems. Contribute to architectural decisions and long-term platform scalability. Backend Development & Event-Driven Systems Build and optimize event-driven and asynchronous workflows. Work with messaging technologies such as Kafka or RabbitMQ. Design solutions capable of handling large-scale real-time data processing. API Design Own the design and evolution of APIs. Create high-performance, type-safe interfaces connecting multiple services and applications. Promote best practices around API versioning and contract-driven development. Frontend Development Develop modern web applications using React and Next.js. Focus on performance, maintainability, and excellent user experience. Implement efficient state management solutions and responsive interfaces. Quality & Reliability Design and maintain comprehensive testing strategies, including Unit, Integration, and End-to-End testing. Work with tools such as Jest, Vitest, and Playwright. Contribute to a culture focused on code quality and system reliability. Requirements 5+ years of experience in software engineering. Strong expertise in Node.js and TypeScript. Experience designing and implementing event-driven architectures. Advanced knowledge of asynchronous programming patterns. Proven experience designing and maintaining complex APIs. Strong frontend development skills with React and Next.js. Hands-on experience with automated testing frameworks. Experience with SQL and/or NoSQL databases. Familiarity with search technologies such as Elasticsearch or OpenSearch. Professional-level English communication skills. Ability to collaborate across teams and support technical decision-making. Nice to Have Interest or experience in AI-related projects. Knowledge of vector databases. Experience building services in Python. What’s Offered Opportunity to work on large-scale, modern cloud solutions. Influence on architecture and technical direction. Collaborative engineering culture with knowledge-sharing initiatives. Stable employment in an international environment. Flexible working hours and hybrid work model. Comprehensive benefits package, including private healthcare, sports card, insurance options, and additional employee perks. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Full Stack Developer role in an international agile team delivering digital solutions for used assets remarketing. The position involves designing, developing, and maintaining scalable and secure backend and frontend applications while contributing to technical decisions and code quality. The role also includes collaboration in a cross-functional environment and mentoring junior developers. 🗂️ Requirements: 5+ years of full stack development experience, Proficiency in Java, JavaScript, and Python, Experience with Spring Boot and Angular, Hands-on experience with REST and SOAP APIs, Experience with Oracle and MongoDB databases, Knowledge of messaging systems such as Kafka or ActiveMQ, Experience with CI/CD tools and build automation, Proficiency with Docker and Kubernetes, Experience working in Agile environments, Fluent English 📃 Skills: Java, JavaScript, Python, SpringBoot, Angular, Oracle, MongoDB, Elasticsearch, SOLR, REST, SOAP, Kafka, ActiveMQ, Maven, Jenkins, GitLabCI, Git, Docker, Kubernetes, Tomcat, Nginx, IntelliJ, Eclipse, VSCode, Jira, Confluence 🏢 Description: Senior Full Stack Developer Location: Warsaw (hybrid 50/50) Experience: 5+ years Language: English (required) Role Overview We are looking for a Senior Full Stack Developer to join an international agile team delivering digital solutions supporting used assets remarketing. The role involves designing, developing, and maintaining scalable and secure applications, working closely with product owners, designers, and other engineers in a cross-functional setup. You will contribute to both backend and frontend development, participate in technical decision-making, review code, and support continuous improvement of existing systems. Responsibilities Design and develop backend services and APIs Build and maintain frontend applications Improve and refactor existing solutions Participate in code reviews and agile ceremonies Collaborate with cross-functional teams Support technical documentation and application maintenance Mentor junior developers when needed Required Tech Stack Languages: Java, JavaScript, Python Frameworks: Spring Boot, Angular Databases: Oracle, MongoDB, Elasticsearch / SOLR APIs: REST, SOAP Messaging: Kafka, ActiveMQ CI/CD & Build: Maven, Jenkins, GitLab CI Version Control: Git Containers & Cloud: Docker, Kubernetes Servers & Tools: Tomcat, Nginx IDEs: IntelliJ IDEA, Eclipse, VS Code Agile & DevOps tools: Jira, Confluence Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Full-Stack Developer role focused on building and maintaining backend services in Python (FastAPI) and frontend applications in React.js within an enterprise environment. The position involves developing REST APIs, managing databases, containerizing applications, and deploying to AWS using modern DevOps practices. Hybrid work model with collaboration on scalable, production-grade systems. 🗂️ Requirements: Commercial experience with Python, Experience with FastAPI, Hands-on experience with React.js, Strong knowledge of SQL databases, Strong knowledge of NoSQL databases, Experience with Docker, Experience with Kubernetes, Basic knowledge of AWS, Experience designing and developing REST APIs 📃 Skills: Python, FastAPI, React, SQL, NoSQL, PostgreSQL, Redis, PGVector, Docker, Kubernetes, AWS, REST, CI/CD 🏢 Description: Full-Stack Developer (Python / React) Location: Kraków, Poland Work Model: Hybrid (6 days per month in the office) About the Role We are looking for an experienced Full-Stack Developer to join our enterprise team and support the development and maintenance of modern backend and frontend applications. You will work with a cutting-edge technology stack in an international environment. Key Responsibilities Design, develop, and maintain backend services using Python (FastAPI) Build and enhance frontend components using React.js Design and develop REST APIs Work with SQL and NoSQL databases (PostgreSQL, Redis, PGVector) Containerize applications and manage deployments using Docker and Kubernetes Deploy and maintain applications in AWS Participate in CI/CD processes and automated testing Collaborate with the team on new features and system integrations (Optional) Contribute to GenAI initiatives (LangChain, OpenAI API) Requirements Proven commercial experience with Python and FastAPI Hands-on experience with React.js Strong knowledge of SQL and NoSQL databases Experience working with Docker and Kubernetes Basic knowledge of AWS Nice to Have Experience or interest in GenAI / LLM technologies Familiarity with CI/CD pipelines and automated testing What We Offer Benefits package including Multisport card and private healthcare Hybrid work model with flexible working hours Opportunity to work in an international environment with a modern tech stack Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Senior Fullstack Engineer role focused on developing and modernizing a large-scale enterprise payment platform, working on both backend and frontend services in a microservices-based architecture. The position involves migrating legacy systems, improving automation and testing, and enhancing service efficiency in an Agile, DevOps-oriented environment. Hybrid work model with long-term engagement in the financial services domain. 🗂️ Requirements: Strong experience with Java 11+, Experience with Kubernetes, Experience with Git, Proficiency in Unix-based systems and CLI, Strong knowledge of SQL, Experience with relational databases, Understanding of REST APIs, Knowledge of microservice architecture 📃 Skills: Java, React, Kubernetes, Git, Unix, SQL, Oracle, REST, Microservices, HTTP, JavaScript, Spring, SpringBoot 🏢 Description: 📍 Location: Warsaw or Kraków (hybrid - 2 days in the office per week) 📄 B2B: 170 - 200 PLN / h 🏦 Industry: Financial Services / Payments We are looking for a Senior Fullstack Engineer to join a team working on a large-scale payment platform used in enterprise environments. The platform enables fast, secure, and multi-channel financial operations. The role focuses on building and maintaining backend and frontend services, modernizing legacy systems, and improving automation and efficiency. You will work in an Agile, DevOps-aligned environment with experienced teams. Key Responsibilities: Develop and maintain services, microservices, and applications (backend and frontend) using Java 11/17/21 and ReactJS. Modernize legacy systems, migrating from mainframe and IBM WebSphere to API/microservice-based architectures. Reduce testing costs by implementing automated testing frameworks. Improve Straight-Through-Processing (STP) efficiency in services. Collaborate closely with DevOps and solution delivery teams. Requirements: Strong experience with Java 11+ (Java 17+ preferred). Experience with Kubernetes and Git (required). Fluency in navigating Unix-based systems and command-line interfaces. Solid knowledge of SQL and relational databases (Oracle preferred). Practical understanding of REST APIs and microservice architectures. Knowledge of HTTP/Web technologies, JavaScript and React (preferred). Experience working in DevOps teams (preferred). Understanding of application monitoring (desirable). Knowledge of Spring / Spring Boot (desirable). What We Offer: Work on a long-term, large-scale payment platform. Real impact on architecture, processes, and modernisation of services. Hybrid work model (Warsaw or Kraków). Mature engineering environment with focus on automation and best practices. Luxmed healthcare package and Multisport card. Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska. Sprawdź inne aktualne oferty pracy na: https://antal.pl/dla-kandydata Zaobserwuj nasz profil na LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Full-Stack Developer role focused on designing, developing and maintaining distributed systems in a financial sector environment using .NET and web technologies. The position involves architectural impact, asynchronous communication, and frontend development within a Scrum team. The developer will contribute to technical standards and support CI/CD and cloud-based solutions. 🗂️ Requirements: Higher education in Computer Science or technical field, Minimum 6 years commercial experience in C# with .NET Core or ASP.NET, Strong knowledge of relational databases and SQL, Experience in designing and building distributed systems, Experience with asynchronous communication (RabbitMQ or Azure Service Bus), Experience in web frontend development (JavaScript, TypeScript, HTML, CSS), Proficiency with Git and GitHub, English proficiency for technical documentation and vendor communication 📃 Skills: C#, .NET, ASP.NET, SQL, RabbitMQ, Azure, JavaScript, TypeScript, HTML, CSS, Git, GitHub, NHibernate, EntityFramework, MassTransit, NServiceBus, React, CI/CD, Docker, Kubernetes, Helm 🏢 Description: Senior Full-Stack Developer (.NET + Web) Szukamy doświadczonego Senior Full-Stack Developera , który chce mieć realny wpływ na architekturę, rozwiązania i kierunek rozwoju systemów wspierających kluczowe procesy biznesowe w organizacji z sektora finansowego. Jeśli cenisz dobry kod, przemyślane decyzje techniczne i współpracę z dojrzałym zespołem – ta rola może być dla Ciebie. Zakres obowiązków Rozwój i utrzymanie kluczowych systemów wykorzystywanych w całej organizacji Projektowanie i implementacja rozwiązań w oparciu o architekturę rozproszoną Praca w zespole Scrumowym: planowanie, estymacje, proponowanie rozwiązań, demo, iteracyjne usprawnianie produktów Współtworzenie standardów technicznych i dobrych praktyk (nie tylko kodowanie) Dzielenie się wiedzą i mentoring mniej doświadczonych developerów Wymagania Wykształcenie wyższe informatyczne lub techniczne Minimum 6 lat komercyjnego doświadczenia w tworzeniu aplikacji w C# (.NET Core / ASP.NET) Bardzo dobra znajomość relacyjnych baz danych i SQL Doświadczenie w projektowaniu i budowie systemów rozproszonych Praktyka w implementacji komunikacji asynchronicznej (np. RabbitMQ, Azure Service Bus) Doświadczenie w tworzeniu frontendów aplikacji webowych (JavaScript / TypeScript / HTML / CSS) Swoboda w pracy z Git / GitHub Umiejętność samodzielnego i kreatywnego rozwiązywania problemów Znajomość języka angielskiego pozwalająca na pracę z dokumentacją i kontakt z dostawcami Mile widziane Doświadczenie z ORM (NHibernate, Entity Framework / EF Core) Znajomość narzędzi do obsługi szyn komunikatów (MassTransit, NServiceBus) Praca z React Pisanie testów automatycznych (unit, integration, e2e – także UI) Doświadczenie z CI/CD i automatyzacją buildów Praca w Microsoft Azure Doświadczenie z Dockerem i Kubernetes (w tym Helm) Oferujemy Stabilną, długofalową współpracę przy realnych, biznesowo istotnych systemach Pracę w dojrzałym Agile – nastawionym na ciągłe doskonalenie i empiryczne podejście do rozwoju produktów Współpracę z doświadczonymi specjalistami i realny wpływ na decyzje technologiczne Model pracy hybrydowej (minimum 1 spotkanie w biurze co 2 tygodnie) Współpraca w oparciu o kontrakt B2B Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska.