React Developer (f/m/x)

🏢 Summary: Role focused on designing and developing scalable microservices for a modern fintech expense management platform integrating payments, cards, and invoicing into partner systems. The position involves leading technical initiatives, optimizing system performance, and ensuring high reliability in a cloud-based distributed environment. You will also mentor engineers and drive technical improvements across the platform. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong expertise in Kotlin, Experience with distributed systems, Experience with microservices architecture, Experience with cloud environments (AWS, Kubernetes), Proficiency with PostgreSQL or other relational databases, Experience with JUnit and Testcontainers, Experience with observability tools such as Grafana, Very good English (minimum B2), Fluent Polish, Residence in Poland 📃 Skills: Kotlin, AWS, Kubernetes, PostgreSQL, JUnit, Testcontainers, Grafana, Microservices, DistributedSystems, Cloud 🏢 Description: Join a team working on a modern fintech platform that supports company expense management. The project focuses on developing a finance solution that enables seamless integration of financial tools (including payment cards, expense management, and invoice handling) directly into partner systems such as banks, accounting platforms, and HR solutions. The product being developed allows companies to simplify financial processes, automate settlements, and gain full real-time control over their spending. Your tasks Leading initiatives to design, build, and maintain scalable microservices primarily using Kotlin Collaborating with cross-functional teams to develop innovative solutions across Platform, Services, SMB, and other domains Analyzing system performance and implementing optimizations to ensure high reliability and scalability Participating in code reviews, post-mortems, and providing mentorship to other engineers Proactively improving the architecture and quality of solutions, and leading the team through technical challenges and migrations Requirements Minimum 5 years of professional experience in software development Expertise in server-side languages, especially Kotlin, and experience with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes) Proficiency with relational databases like PostgreSQL, testing frameworks (e.g., JUnit, Testcontainers), and observability tools like Grafana Strong problem-solving skills and a collaborative mindset to mentor and upskill your teammates Very good knowledge of English - min. B2 level Residing in Poland required Nice-to-have requirements Previous work in the fintech industry or with financial products Knowledge of topics related to payments, cards, or accounting Experience working in a scale-up environment Proficiency in one of the following front-end technologies: React or TypeScript What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Backend engineering role focused on building and maintaining Kotlin-based microservices for a modern fintech expense management platform. The position involves developing scalable financial integrations with banks, accounting, and HR systems while ensuring high reliability and performance. You will contribute to architecture improvements, code quality, and system observability in a cloud environment. 🗂️ Requirements: Minimum 3 years of software development experience, Commercial experience with Kotlin, Experience building backend systems, Experience with microservices architecture, Basic experience with AWS or Kubernetes, Experience with PostgreSQL, Experience with testing and observability tools, Good command of English, Residence in Poland 📃 Skills: Kotlin, Microservices, Backend, AWS, Kubernetes, PostgreSQL, JUnit, Grafana, Cloud 🏢 Description: Join a team working on a modern fintech platform that supports company expense management. The project focuses on developing a finance solution that enables seamless integration of financial tools (including payment cards, expense management, and invoice handling) directly into partner systems such as banks, accounting platforms, and HR solutions. The product allows companies to simplify financial processes, automate settlements, and gain full real-time control over their spending. Your tasks Designing, building, and maintaining microservices using Kotlin Collaborating with cross-functional teams to deliver solutions across Platform, Services, SMB, and other domains Supporting system performance monitoring and contributing to improvements in reliability and scalability Participating in code reviews and maintaining high code quality standards Contributing to the continuous improvement of code quality and system architecture Troubleshooting and resolving technical issues Requirements Minimum 3 years of professional experience in software development Hands-on experience with Kotlin in commercial projects Experience building backend systems and working with microservices architecture Basic experience with cloud environments (e.g., AWS, Kubernetes) Experience with relational databases (e.g., PostgreSQL) as well as testing and observability tools (e.g., JUnit, Grafana) Good command of English Residing in Poland required What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Offer for a Test Automation Engineer to work on a large, modular banking system supporting payments, workflows, and document management. The role focuses on automated testing of client-facing and internal banking applications, including backend components and administrative modules. Work is project-based within a cross-functional team, contributing to high-impact financial systems. 🗂️ Requirements: Minimum 3 years of experience in test automation using Java, Hands-on experience with Selenium or Selenide, Experience with Cucumber, Experience with Rest Assured, Experience with Git, Experience with Jenkins, Fluent Polish, Fluent English, Availability for hybrid work (3 days per week in Kraków office), Residence in Poland 📃 Skills: Java, Selenium, Selenide, Cucumber, RestAssured, Git, Jenkins 🏢 Description: We are looking for a person who will work with us on a modern application for managing processes and exchanging documents between a bank and its clients. What do we do? We are developing a large, modular system in which each module has its own unique responsibilities — from handling payment processes and document exchange with clients, through advanced internal applications with schedules and checklists, to the administration and customization of business processes. Your tasks Testing a client-facing application responsible for payments, workflows, and document management Working with internal banking systems, including workflow modules, calendars, and administrative panels Verifying administrator dashboards, including backend components of modules and calendars Working in a task-oriented, project-based mode (code reviews, collaborative problem-solving) Collaborating closely within a cross-functional team, including Tech Lead, 2 Business Analysts, a Scrum Master, 5 Testers, as well as 6 Backend and 6 Frontend Developers Requirements At least 3 years of experience in test automation using Java Fluent proficiency in both Polish and English Experience and willingness to grow in technologies such as Java, Selenium (Selenide), Cucumber, Rest Assured, Git, and Jenkins Availability for hybrid work — 3 days per week in the office in Kraków Residing in Poland required Additional benefits Variety of responsibilities — you can be involved in frontend, backend, and integrations with external systems Large-scale projects that are well structured into modules making it easy to onboard and navigate the work Opportunity to introduce test automation and new technologies, e.g. migrating from Selenium to Playwright A real impact on improving customer service and optimizing business processes What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: The role involves automated testing of a modern, modular banking application supporting payments, workflows, and document management for client-facing and internal systems. The position focuses on developing and maintaining test automation frameworks while collaborating within a cross-functional Scrum team. It offers work on large-scale, high-impact systems with opportunities to introduce new automation technologies. 🗂️ Requirements: Minimum 3 years of experience in test automation using Java, Experience with Selenium or Selenide, Experience with Cucumber, Experience with Rest Assured, Experience with Git, Experience with Jenkins, Fluent Polish and English, Availability for hybrid work (3 days per week in Kraków office), Residence in Poland 📃 Skills: Java, Selenium, Selenide, Cucumber, RestAssured, Git, Jenkins 🏢 Description: We are looking for a person who will work with us on a modern application for managing processes and exchanging documents between a bank and its clients. What do we do? We are developing a large, modular system in which each module has its own unique responsibilities — from handling payment processes and document exchange with clients, through advanced internal applications with schedules and checklists, to the administration and customization of business processes. Your tasks Testing a client-facing application responsible for payments, workflows, and document management Working with internal banking systems, including workflow modules, calendars, and administrative panels Verifying administrator dashboards, including backend components of modules and calendars Working in a task-oriented, project-based mode (code reviews, collaborative problem-solving) Collaborating closely within a cross-functional team, including Tech Lead, 2 Business Analysts, a Scrum Master, 5 Testers, as well as 6 Backend and 6 Frontend Developers Requirements At least 3 years of experience in test automation using Java Fluent proficiency in both Polish and English Experience and willingness to grow in technologies such as Java, Selenium (Selenide), Cucumber, Rest Assured, Git, and Jenkins Availability for hybrid work — 3 days per week in the office in Kraków Residing in Poland required Additional benefits Variety of responsibilities — you can be involved in frontend, backend, and integrations with external systems Large-scale projects that are well structured into modules making it easy to onboard and navigate the work Opportunity to introduce test automation and new technologies, e.g. migrating from Selenium to Playwright A real impact on improving customer service and optimizing business processes What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Opportunity for a Lead Full Stack Engineer to architect and build a scalable web platform for risk, compliance, and business architecture management. The role covers end‑to‑end development across frontend and backend, cloud infrastructure design, and technical leadership in an Agile (Scrum) environment. You will drive architectural decisions, ensure high development standards, and deliver robust, data‑driven solutions. 🗂️ Requirements: 8+ years of software engineering experience, 3+ years in full‑stack roles building and launching web platforms, Expertise in React or Angular (modern frontend frameworks), Strong backend experience with REST APIs and microservices, Experience designing scalable, resilient architectures, Experience with PostgreSQL or MySQL, Experience with MongoDB or Cassandra, Proficiency with Git and version control workflows, Experience working in Agile (Scrum) environments, Ability to design and build cloud infrastructure using GCP, containers, and infrastructure as code, Availability to work from Kraków office 6–8 times per month, Residing in Poland 📃 Skills: React, Angular, Node.js, Java, Python, REST, Microservices, PostgreSQL, MySQL, MongoDB, Cassandra, GCP, Kubernetes, Docker, Serverless, CI/CD, Infrastructure-as-code, Agile, Scrum, Git 🏢 Description: Must-have technologies: React.js | Angular | Node.js | Java | Python | REST | Microservices | PostgreSQL | MySQL | MongoDB | Cassandra | GCP | Kubernetes | Docker | Serverless Computing | CI/CD | Infrastructure as code | Agile Methodology | Scrum Methodology Nice-to-have technologies: Alicloud | AWS | Microsoft Azure | Jupyter Notebooks | Pandas | NumPy Join Sii as a Lead Full Stack Engineer, and you will build and develop a modern web platform used for risk, compliance, and business architecture management. You will work on both frontend and backend, creating solutions from end to end. The role involves close collaboration with product managers, engineers, and business users to turn complex needs into practical tools. You will also take ownership of technical decisions and support high development standards within the team. Your work will help improve automation, compliance, and data‑driven decision‑making across the organization. Your tasks Architect, design, and build a scalable web platform from scratch, covering both frontend and backend Lead development of user‑facing features using modern frontend frameworks Develop and maintain backend services, including APIs, microservices, data models, and business logic Design resilient, performant architecture across databases, services, and APIs Collaborate closely with product, business, and engineering stakeholders in an Agile (Scrum) environment Ensure high‑quality, rapid delivery through CI/CD pipelines, automated testing, and code reviews Design and build scalable cloud infrastructure, preferably on GCP, using infrastructure as code, containerization, and serverless solutions Mentor engineers, promote team autonomy, uphold architectural standards, and drive technical excellence Work with both relational and NoSQL databases Requirements At least 8 years of software engineering experience, including 3+ years in full‑stack roles designing, building, and launching web platforms Strong expertise in modern frontend frameworks (React, Angular, or Vue), including component‑driven architecture, state management, routing, and responsive UI Solid backend experience covering RESTful APIs, microservices, domain‑driven design, scalable architectures, and fault tolerance Proven ability to build platforms and tools from scratch and deliver end‑to‑end solutions under tight timelines High level of autonomy: ownership of technical decisions, task management, and delivery with minimal supervision Experience with relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases Proficient with Git and version control workflows Deep understanding of architectural best practices combined with a fast‑paced, pragmatic, and results‑driven delivery mindset Availability to work from the Kraków office 6–8 times per month Residing in Poland required What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Frontend Developer role focused on modernizing and maintaining the UI of a complex structured notes pricing application using ReactJS. The position involves refactoring legacy components, implementing new features in collaboration with backend teams, and improving frontend architecture and CI/CD processes. The work supports a gradual uplift of the existing system while ensuring compatibility with legacy solutions. 🗂️ Requirements: Minimum 5 years of commercial frontend development experience, Strong knowledge of ReactJS including Hooks and ContextAPI, Strong JavaScript proficiency, Practical experience with TypeScript, Experience with modern CSS techniques and preprocessors, Experience with CSS-in-JS or SCSS, Familiarity with webpack and npm, Experience with GitLab or Jenkins, Understanding of testing methodologies, Knowledge of software design principles, Experience with CI/CD workflows 📃 Skills: ReactJS, JavaScript, TypeScript, SCSS, CSS-in-JS, webpack, npm, GitLab, Jenkins, CI/CD, HTML, CSS, Hooks, ContextAPI, Testing, Git 🏢 Description: Join the dynamic international team of professionals split between London and Warsaw. We are looking for an experienced Frontend Developer to help modernize the user interface of a complex pricing application used for structured notes. The role involves working closely with both frontend and backend developers as we uplift the existing UI while maintaining compatibility with the legacy application. Your tasks Develop and maintain user interface components using ReactJS and JavaScript Collaborate with backend developers and strategists to implement features Refactor legacy UI components to align with the new architecture Utilize CSS-in-JS or SCSS for styling and implement responsive designs Participate in code reviews and apply solid design patterns Contribute to improving CI/CD workflows and frontend build processes Requirements Minimum of 5 years of commercial frontend development experience Strong knowledge of ReactJS (including Hooks and Context API) and JavaScript Practical experience with TypeScript, with proficiency in modern CSS techniques and tools Familiarity with modern frontend tooling: webpack, npm, GitLab/Jenkins Understanding of testing methodologies and software design principles Fluency in English (spoken and written) Open to hybrid work (3 days per week in the office) What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: The offer is for a Senior Front-End Software Engineer to design and develop real-time trading UI components for a wealth management platform using Svelte/SvelteKit. The role focuses on building scalable, high-performance interfaces integrated with backend trading systems, ensuring low latency and high usability. You will work in a Scrum team, contribute to CI pipelines, and support production trading environments. 🗂️ Requirements: 5+ years of experience building production applications with Svelte or SvelteKit, Strong knowledge of HTML, CSS, JavaScript, TypeScript, Experience with component architecture, reactivity, and state management in Svelte, Ability to integrate front-end applications with REST, WebSocket, and messaging APIs, Experience writing unit and component-level tests, Familiarity with CI pipelines and modern front-end tooling, Basic Linux skills (shell navigation, log inspection, process control, remote workflows), Fluent English, Communicative Polish 📃 Skills: Svelte, SvelteKit, JavaScript, TypeScript, HTML, CSS, REST, WebSocket, Linux, CI, Shell, APIs 🏢 Description: We develop our product offering to help wealth management to serve their clients' portfolios. For this, we build scalable solutions that need to perform with a rich history of financial data. We specialize in being breadth of offerings to support smaller firms' needs to serve their users well with a highly configurable solution with many functions. Our platform has been built over years of experience in the portfolio management domain. We enhance business functionalities as well as strengthen our technology to scale operationally with low cost of ownership and high quality. For this work, we are looking for further Software Engineers to become full members of our team and take the tasks at hand from the Scrum backlog. Your tasks Design and develop front-end components and windows for IPT/IOM trading workflows using modern Svelte / SvelteKit, with a focus on real-time responsiveness, interoperability and minimal latency Write testable, maintainable code with appropriate unit and component-level tests, and contribute to the team’s continuous integration pipelines Apply modern tooling and champion clean-code and performance standards across the front-end codebase Contribute to code reviews and help raise the team’s engineering standards around component architecture, accessibility, and maintainability Integrate UI components with IPT/IOM back-end services and other upstream/downstream trading systems via REST, WebSocket, and messaging APIs Iterate rapidly — prototype, refine, and ship new features on tight timelines, working directly with traders and squad stakeholders to validate behaviour Operate on Linux: shell navigation, log inspection, process control, and remote workflows Provide front-line support for UI issues in production trading installations, diagnosing problems quickly and delivering fixes with minimal disruption to live trading Act as a close partner to back-end engineers, product owners — translating operational feedback into concrete UI/UX improvements Champion UX quality by applying strong usability, layout, and interaction judgment to data-dense, high-frequency-use interfaces Requirements Solid hands-on, more than 5 years of experience building production applications with Svelte (and/or SvelteKit), including component architecture, stores, reactivity, and lifecycle management Strong command of modern HTML, CSS, and JavaScript/TypeScript, along with browser APIs, async patterns Demonstrable sensitivity to usability, layout, and interaction design — particularly for data-dense, high-frequency-use professional interfaces Comfortable with basic Linux operations — shell navigation, package management, log inspection, process control, and remote development workflows Fluent English, both written and spoken Polish at a communicative level What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Development and maintenance of an Android mobile banking application in the payments and transfers domain for a large-scale banking project. The role focuses on implementing new features, integrating with backend services, and ensuring high code quality using modern architectural patterns. The project has significant impact on end-user mobile banking experience. 🗂️ Requirements: Minimum 3 years of commercial Android development experience, Practical experience with Kotlin, Very good knowledge of Android SDK and Android Studio, Experience with Coroutines and Flow, Experience with Architecture Components, Experience with Dagger2, Experience with Jetpack Compose, Knowledge of Clean Architecture, MVVM or MVI, Experience with REST API and WebSocket integration, Experience with Git, Experience with CI/CD tools, Ability to write unit, integration and UI tests, Experience working in Agile methodology, Fluent Polish, Communicative English, Residence in Poland 📃 Skills: Kotlin, Android, AndroidSDK, AndroidStudio, Coroutines, Flow, ArchitectureComponents, Dagger2, JetpackCompose, CleanArchitecture, MVVM, MVI, REST, WebSocket, Git, CI/CD, TeamCity, Jenkins, Gradle, UnitTesting, IntegrationTesting, UITesting 🏢 Description: Dołącz do projektu realizowanego dla jednego z największych banków w Polsce, w którym rozwijamy i utrzymujemy obszar płatności oraz przelewów w aplikacji mobilnej. Zespół odpowiada za wdrażanie nowych typów przelewów, dostosowanie aplikacji do regulacji europejskich oraz redesign wybranych elementów systemu. To projekt o dużej skali i realnym wpływie na codzienne doświadczenia użytkowników korzystających z bankowości mobilnej. Twoje zadania Rozwój i utrzymanie aplikacji mobilnej Android w obszarze płatności i przelewów Implementacja nowych funkcjonalności oraz optymalizacja istniejących rozwiązań Integracja aplikacji z backendem poprzez REST API i WebSocket Dbanie o jakość kodu, testy jednostkowe, integracyjne i UI Udział w projektowaniu architektury aplikacji (Clean Architecture, MVVM/MVI) Współpraca z zespołami backend, UX i analitykami w metodyce Agile Udział w code review oraz procesach CI/CD Wymagania Minimum 3 lata komercyjnego doświadczenia w tworzeniu aplikacji Android, w tym praktyczna praca w Kotlin Bardzo dobra znajomość Kotlin, Android SDK oraz Android Studio, w tym doświadczenie z Coroutines & Flow, Architecture Components, Dagger2 oraz Jetpack Compose Znajomość wzorców projektowych (Clean Architecture, MVVM, MVI) oraz doświadczenie w integracji z backendem (REST API, WebSocket) Wcześniejsza praca z Git oraz narzędziami CI/CD (TeamCity, Jenkins, Gradle) oraz umiejętność pisania testów (jednostkowych, integracyjnych, UI) Doświadczenie w pracy w metodyce Agile Gotowość do pracy hybrydowej – wizyty w biurze 1 raz na 2 tygodnie Komunikatywna znajomość języka angielskiego Wymagane przebywanie na terenie Polski oraz płynna znajomość języka polskiego Mile widziane Doświadczenie w technologii .NET / C# Benefity, które czekają na Ciebie: Tytuł Great Place to Work od 2015 roku - to dzięki opiniom pracowników otrzymujemy tytuł i wdrażamy nowe pomysły Stabilność zatrudnienia - 2,1 MLD PLN przychodu, brak długów, od 2006 roku na rynku Dzielimy się zyskiem z pracownikami - od 2022 roku przeznaczyliśmy na ten cel już ponad 76 milionów PLN Bogaty pakiet benefitów - prywatna opieka zdrowotna, platforma kafeteryjna, zniżki na samochody i więcej Komfortowe miejsce pracy - pracuj w naszych biurach klasy A lub zdalnie Dziesiątki fascynujących projektów dla prestiżowych marek z całego świata 1 000 000 PLN rocznie na Twoje pomysły - taką kwotą wspieramy pasje i akcje wolontariackie naszych pracowników Stawiamy na Twój rozwój - meetupy, webinary, platforma szkoleniowa i blog technologiczny – Ty wybierasz Fantastyczna atmosfera stworzona przez wszystkich Sii Power People Dołącz do zespołu Sii – rozwijaj umiejętności, zdobywaj doświadczenie i buduj karierę!

🏢 Summary: Offer for a Test Automation Engineer working on a modern banking application for managing payments, workflows, and document exchange between the bank and its clients. The role focuses on automated testing of customer-facing and internal systems within a large, modular architecture. Work is carried out in a cross-functional, project-based team using Java-based automation frameworks. 🗂️ Requirements: Minimum 3 years of experience in test automation with Java, Experience with Selenium or Selenide, Experience with Cucumber, Experience with Rest Assured, Experience with Git, Experience with Jenkins, Fluent Polish, Fluent English, Availability for hybrid work (3 days per week in Kraków office), Residence in Poland 📃 Skills: Java, Selenium, Selenide, Cucumber, RestAssured, Git, Jenkins 🏢 Description: Poszukujemy osoby, która wspólnie z nami będzie pracować nad nowoczesną aplikacją do zarządzania procesami i wymianą dokumentów pomiędzy bankiem a jego klientami. Czym się zajmujemy? Tworzymy duży, modułowy system, w którym każdy moduł ma swoje unikalne zadania - od obsługi procesów płatności i wymiany dokumentów z klientami, przez zaawansowane aplikacje wewnętrzne z harmonogramami i listami kontrolnymi, po administrację i personalizację procesów biznesowych. Twoje zadania Testowanie aplikacji skierowanej do klienta odpowiedzialnej za płatności, przepływy pracy i zarządzanie dokumentami Praca z wewnętrznymi systemami bankowymi, w tym modułami przepływu pracy, kalendarzami i panelami administracyjnymi Weryfikacja pulpitów administratora, w tym komponentów backendowych modułów i kalendarzy Praca w trybie zorientowanym na zadania, opartym na projektach (przeglądy kodu, wspólne rozwiązywanie problemów) Ścisła współpraca w ramach wielofunkcyjnego zespołu, w tym Tech Lead, 2 Analityków Biznesowych, Scrum Master, 5 Testerów, a także 6 Backend i 6 Frontend Developerów. Wymagania Co najmniej 3 lata doświadczenia w automatyzacji testów z wykorzystaniem języka Java Biegła znajomość języka polskiego i angielskiego Doświadczenie i chęć rozwoju w technologiach takich jak Java, Selenium (Selenide), Cucumber, Rest Assured, Git, Jenkins Dyspozycyjność do pracy hybrydowej - 3 dni w tygodniu w biurze w Krakowie Wymagane miejsce zamieszkania w Polsce Benefity, które czekają na Ciebie: Tytuł Great Place to Work od 2015 roku - to dzięki opiniom pracowników otrzymujemy tytuł i wdrażamy nowe pomysły Stabilność zatrudnienia - 2,1 MLD PLN przychodu, brak długów, od 2006 roku na rynku Dzielimy się zyskiem z pracownikami - od 2022 roku przeznaczyliśmy na ten cel już ponad 76 milionów PLN Bogaty pakiet benefitów - prywatna opieka zdrowotna, platforma kafeteryjna, zniżki na samochody i więcej Komfortowe miejsce pracy - pracuj w naszych biurach klasy A lub zdalnie Dziesiątki fascynujących projektów dla prestiżowych marek z całego świata 1 000 000 PLN rocznie na Twoje pomysły - taką kwotą wspieramy pasje i akcje wolontariackie naszych pracowników Stawiamy na Twój rozwój - meetupy, webinary, platforma szkoleniowa i blog technologiczny – Ty wybierasz Fantastyczna atmosfera stworzona przez wszystkich Sii Power People Dołącz do zespołu Sii – rozwijaj umiejętności, zdobywaj doświadczenie i buduj karierę!

🏢 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