Full-Stack Developer (Ruby+Next.js)

🏢 Summary: Opportunity for a developer with Ruby on Rails and database experience to build high-quality software systems and solve complex technical issues. The role offers flexible hours, remote-work options, competitive compensation, and a structured career-development path. 🗂️ Requirements: 1+ years of IT experience, Ruby on Rails development experience, SQL or NoSQL database experience, English sufficient for written communication 📃 Skills: Ruby, Rails, SQL, NoSQL 🏢 Description: We are looking for experienced developers willing to solve complex technical issues while developing high-quality software systems using modern technologies. Requirements • 1+ years of experience in IT • Experience in Ruby on Rails development • Experience with databases (SQL or NoSQL) • English language level sufficient for written communication Nice to have • Experience in frontend development (HTML5, JavaScript, TypeScript, Angular, React, or other) • Experience with automated testing • Knowledge of containerization principles and hands-on experience with Docker We offer • Projects for clients such as PayPal, Wargaming, Xerox, Philips, Adidas, and Toyota • Competitive compensation based on qualifications and skills • Career development system with clear skill qualifications • Flexible working hours aligned to your schedule • Remote-work options

🏢 Summary: Opportunity for an experienced software professional to design and build complex systems from scratch, define project-wide technical solutions, and establish strong development practices. The offer includes flexible hours, remote-work options, competitive compensation, and a structured career-development system. 🗂️ Requirements: 3+ years of IT experience, Ruby on Rails experience, SQL or NoSQL database experience, Understanding of Unix-like systems, English for technical project discussions 📃 Skills: Ruby, Rails, SQL, NoSQL, Unix, HTML5, JavaScript, TypeScript, Angular, React, AWS, GoogleCloud, CICD, Scrum 🏢 Description: We are looking for experienced professionals who can design and develop complex software systems from scratch, design project-wide technical solutions, and establish and control best development practices. What we expect from you: • 3+ years of experience in IT • Experience with Ruby on Rails • Experience with databases (SQL or NoSQL) • Good understanding of *nix systems • English skills sufficient for technical project conversations It would be a plus to have: • Experience with frontend development (HTML5, JavaScript/TypeScript, Angular/React) • Hands-on experience with cloud services (AWS, Google Cloud) • Experience setting up and supporting development processes, including CI/CD, code review, static code analysis, and automated testing • Experience working with SCRUM • Experience creating technical documentation We offer: • Projects for clients including PayPal, Wargaming, Xerox, Philips, Adidas, and Toyota • Competitive compensation based on qualifications and skills • Career development system with clear skill qualifications • Flexible working hours aligned to your schedule • Remote-work options

🏢 Summary: Fullstack Developer role for an international heating solutions client, focused on building advanced planning applications using React and Java. The position involves developing backend APIs, responsive interfaces, and managing the full platform lifecycle with CI/CD and cloud technologies. The role requires strong experience in enterprise Java, modern frontend frameworks, automated testing, and AI-assisted development workflows. 🗂️ Requirements: Strong proficiency in React, Strong proficiency in Next.js, Strong proficiency in Node.js with SSR, Advanced programming experience in Java, Advanced programming experience in TypeScript, Experience with Spring Boot, Experience integrating LLMs and AI tools, Experience designing and consuming REST APIs, Experience with relational databases, Experience with NoSQL databases, Experience with MS Azure, Experience with Docker, Experience with Kubernetes, Experience with Terraform, Experience with GitHub Actions, Experience with Gradle, Experience writing Unit tests, Experience writing Integration tests, Experience writing E2E tests, Understanding of Agile (Scrum or Kanban), English level minimum B2, Willingness to travel occasionally to Katowice 📃 Skills: React, Next.js, Node.js, Java, TypeScript, JavaScript, Spring, SpringBoot, REST, SQL, NoSQL, Azure, Docker, Kubernetes, Terraform, GitHubActions, Gradle, LLM, AI, Scrum, Kanban, Vue.js 🏢 Description: About the project For an international client from the heating solutions industry, we are looking for an experienced Fullstack Developer who feels comfortable working with React and Java. Our expectations Strong proficiency in React, Next.js, and Node.js, including Server-Side Rendering (SSR). Advanced, hands-on programming experience with both Java and TypeScript / JavaScript. Deep knowledge of enterprise software development using Java and Spring Boot technologies. Experience integrating LLMs and AI tools into daily workflows to optimize development speed. Mastery of REST APIs and experience with relational/NoSQL databases, especially within MS Azure. Hands-on experience with Docker, Kubernetes, Terraform, and pipeline automation via GitHub Actions and Gradle. Direct experience writing automated Unit, Integration, and E2E tests. Strong understanding of Agile principles including Scrum or Kanban. Very goo command of English (min. B2 level) Willingness to undertake occasional travel to the client's office (Katowice) approximately once per quarter. Welcome Skills Experience with Vue.JS. Key tasks Design advanced planning applications in close collaboration with cross-functional teams. Develop robust backend APIs for resource scheduling, allocation logic, and core modules. Create responsive interfaces focused on performance, security, data visualization, and accessibility. Build your own AI-based work environment using advanced developer tools to maximize efficiency. Manage the platform lifecycle from architectural strategy to operations and CI/CD practices. Design and implement automated test scenarios to guarantee platform success. Maintain active communication with the Technical Product Owner and Product Management organization to align priorities.

🏢 Summary: Full Stack Developer role focused on end-to-end web application development, covering UI implementation, backend architecture, API design, and database integration. The position involves building and optimizing responsive interfaces, creating REST APIs, and ensuring quality through testing and debugging across the full stack. 🗂️ Requirements: Proficiency in TypeScript and JavaScript, Understanding of REST API principles, Knowledge of HTML and CSS with responsive design, Experience with Python and Bash, Ability to test and debug applications, Knowledge of Linux operating system, Proficiency with Git, Experience with Docker and Kubernetes 📃 Skills: TypeScript, JavaScript, REST, HTML, CSS, Python, Bash, Linux, Git, Docker, Kubernetes, Testing, Debugging 🏢 Description: Szukamy Full Stack Developera/Developerki, który/a będzie rozwijał/a aplikację webową end-to-end: od UI, przez integrację z API, po pracę z danymi. Zadania i odpowiedzialności: Tworzenie interfejsów użytkownika (UX/UI) Implementacja funkcjonalności w HTML, CSS, JavaScript/TypeScript Optymalizacja wydajności, responsywności i kompatybilności Implementacja architektury backendu, integracja z zewnętrznymi serwisami Projektowanie i implementacja API (REST) oraz integracja z frontendem (kontrakty, walidacja, obsługa błędów) Praca z bazą danych (model danych, podstawowe zapytania, dbanie o spójność) Testowanie, debugowanie i dbanie o jakość (frontend + backend) Współpraca z zespołem (planowanie, komunikacja, code review) Wymagania (must have): Znajomość TypeScript i JavaScript Rozumienie REST API HTML i CSS + responsywność Znajomość Python i bash Umiejętność testowania i debugowania Znajomość systemu operacyjnego Linux Znajomość GIT Doświadczenie z konteneryzacją aplikacji: Docker/Kubernetes Mile widziane: Znajomość protokołu MQTT Znajomość GO Znajomość Angular/vue.js/React lub innego frameworka Doświadczenie z pracą z bazami danych MongoDB oraz relacyjnymi bazami SQL Doświadczenie z autoryzacją oraz autentyfikacją: SSL, OAuth2, JWT Co oferujemy: Mentoring + onboarding + regularne code review Czytelne zadania i sensowny feedback Realny wpływ na projekt i możliwość wdrażania własnych pomysłów Niezbędny sprzęt do pracy Jak wygląda rekrutacja Proces rekrutacji wygląda następująco: najpierw wysyłasz swoje CV, a jeśli masz – również link do GitHuba lub portfolio z projektami. Następnie wykonujemy krótką rozmowę telefoniczną wstępnie omawiając Twoje doświadczenie, a kolejnym etapem jest rozmowa techniczna w formie zdalnej. Po spotkaniu kontaktujemy się z Tobą z decyzją i ewentualną propozycją współpracy.

🏢 Summary: Short-term (3–4 months) full-stack contract focused on building and enhancing secure backend and frontend features using Python and modern web technologies. The role involves developing REST APIs, implementing robust authentication mechanisms, and integrating security controls within cloud or hybrid environments. Collaboration with DevOps teams ensures reliable, secure deployments and scalable architectures. 🗂️ Requirements: Strong experience with Python and FastAPI, Proven experience building and consuming REST APIs, Experience with PostgreSQL and relational database design, Knowledge of OAuth2, OIDC, RBAC, and SSO integration, Experience with Docker and Kubernetes, Familiarity with CI/CD pipelines, Experience with software supply chain security practices, Ability to work in cloud or hybrid infrastructure environments 📃 Skills: Python, FastAPI, REST, PostgreSQL, OAuth2, OIDC, RBAC, SSO, Docker, Kubernetes, CI/CD, GitHub, GitLab, React, TypeScript, Next.js 🏢 Description: Full-stack Developer 3-4 months contract with possibility for extension Technical Requirements Strong experience with Python , especially FastAPI Proven experience building and consuming REST APIs Experience with PostgreSQL and relational database design Knowledge of authentication and security standards: OAuth2 , OIDC , RBAC , SSO integration Experience with DevOps tooling: Docker and Kubernetes Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI or similar) Experience with software supply chain security: artifact validation, signature verification, compliance scanning, sandboxed execution Ability to work in cloud or on-prem / hybrid infrastructure environments Nice to have: Frontend experience with React , TypeScript , Next.js or similar SPA frameworks Required Technical Skills Python, Fast API, RESTful APIs, PostgreSQL, Docker, Kubernetes, CI/CD Main Responsibilities Designing and developing full-stack features across frontend and backend components Building and maintaining backend services using Python (FastAPI) and REST APIs Developing scalable data models and service architectures Implementing secure authentication and authorization mechanisms Integrating security controls and package validation tooling into the development lifecycle Working in collaboration with DevOps and infrastructure teams to ensure reliable deployments

🏢 Summary: Software developer role focused on building high-quality systems and solving complex technical issues using PHP and Laravel. The position involves RESTful API development, database design, and collaboration in Agile teams, with flexible remote work options and career growth opportunities. 🗂️ Requirements: 3+ years of software development experience, Strong knowledge of PHP 7–8, Experience with Laravel, Understanding of MySQL and database design, Experience with RESTful APIs, Familiarity with Git, Familiarity with Jira, Knowledge of Agile methodologies, English communication skills for technical discussions 📃 Skills: PHP, Laravel, MySQL, REST, Git, Jira, Agile, Scrum, JavaScript, Node.js, React, Redux, Docker, AWS, Symfony, Yii 🏢 Description: We are looking for experienced developers that are willing to solve complex technical issues while developing high quality software systems using modern technologies. What we expect from you: 3+ years of experience in software development Strong knowledge of PHP (7–8) and experience with Laravel framework Solid understanding of MySQL and database design principles Experience with RESTful API development and integration Familiarity with Git, Jira, and Agile methodologies (Scrum) English skills should be sufficient for taking part in conversations on the technical aspects of projects Would be a plus: Experience with JavaScript, Node.js, or frontend frameworks (React, Redux) Hands-on experience with Docker and AWS Understanding of automated testing practices Knowledge of additional PHP frameworks (Symfony, Yii, etc.) We offer: Projects for such clients as PayPal, Wargaming, Xerox, Philips, Adidas and Toyota Competitive compensation that depends on your qualification and skills Career development system with clear skill qualifications Flexible working hours aligned to your schedule Options to work remotely

🏢 Summary: The role involves developing and enhancing a language proficiency testing platform as part of an agile team, focusing on scalable backend and cross-platform frontend solutions. The position requires strong experience in microservices, serverless architecture, CI/CD, and cloud-based systems, along with active participation in code reviews and technical decision-making. You will work on improving code quality, testing practices, and system reliability in a remote or hybrid model. 🗂️ Requirements: 7+ years of software development experience, Fluency in English, Experience with microservices architecture, Experience with serverless architecture, Experience with CI/CD pipelines, Strong knowledge of unit, integration, and E2E testing, Strong knowledge of Java and related frameworks, Experience with relational databases and MongoDB, Experience with messaging systems (AWS SQS required), Strong knowledge of JUnit, Knowledge of backend security best practices and OWASP, Experience with AWS cloud services, Experience with Docker, Experience with cross-platform frontend development, Experience with Angular and React ecosystems 📃 Skills: Java, Play, Spring, SBT, Maven, Gradle, MongoDB, SQL, SQS, RabbitMQ, Kafka, JUnit, OWASP, AWS, Docker, Selenium, Sonar, Angular, TypeScript, React, Redux, MUI, Electron, Axios, Jest, Vitest, Karma, Jasmine 🏢 Description: Full Stack Developer will involve developing and enhancing a platform designed for conducting language proficiency tests. Your responsibilities: Work on an agile engineering team, following Agile best practices while writing maintainable and scalable code and influencing team decisions Collaborate with stakeholders to design and test new product functionalities Review the code of other team members and provide constructive direction. Promote a culture of sharing through mentoring and knowledge exchange Drive continuous improvement of code quality, customer experience, and maintainability of products/features Independently clarify technical requirements, assess development estimates, and apply a broad range of design approaches We are looking for you, if you have: 7+ years of experience Fluency in English is a must Experience on Microservice and Serverless architecture Experience on CI/CD practices Solid testing knowledge – E2E, unit testing, integration testing, etc. Technicall skills: Java: Play3 Framework/Spring Boot SBT, Maven, Gradle MongoDB and Relational Databases Bus messaging systems. AWS SQS is a must, but other technologies like RabbitMQ and Kafka will also be considered Strong Junit knowledge Backend security best practices, including familiarity with OWASP Experience with AWS technologies, Docker, Selenium, Sonar Cross-platform development Angular 13 + TypeScript React + Redux + Material UI (MUI) + TypeScript Electron Axios Jest, Vitest, Karma and Jasmine We offer: Participation in interesting and demanding projects Flexible working hours A great, non-corporate atmosphere Stable employment conditions (contract of employment or B2B contract) Opportunities for development and promotion Attractive package of benefits Work model: remote or hybrid (2 days per week from the office) We reserve the right to contact the selected candidates.

🏢 Summary: Full-stack Developer role focused on building and maintaining modern web applications using the JavaScript/TypeScript ecosystem with React 17+ and NestJS. The position involves developing scalable UI, designing REST APIs, working with SQL and NoSQL databases, and contributing to microservices-based architecture. Responsibilities include feature development, system integrations, testing, and maintaining high code quality standards. 🗂️ Requirements: Commercial experience with React 17+, Strong knowledge of TypeScript, Practical experience with Redux Toolkit and Zustand, Experience with NestJS and REST API development, Knowledge of SQL databases (MySQL or MariaDB), Basic knowledge of MongoDB, Experience with Docker, Ability to write unit and integration tests using Jest, Understanding of microservices architecture, Knowledge of SOLID, KISS, DRY and Clean Code principles, Experience with Linux CLI, Basic knowledge of CI/CD with GitHub Actions 📃 Skills: JavaScript, TypeScript, React, ReduxToolkit, Zustand, TailwindCSS, MaterialUI, NestJS, NodeJS, REST, SQL, MySQL, MariaDB, MongoDB, Jest, Docker, Linux, CICD, GitHubActions, Microservices 🏢 Description: Poszukujemy doświadczonego Full-stack Developera specjalizującego się w budowie nowoczesnych aplikacji webowych w oparciu o ekosystem JavaScript/TypeScript. Od wersji 17 aktywnie pracującego z Reactem, tworzącegi skalowalne i wydajne interfejsy użytkownika z naciskiem na czytelność kodu oraz wysoką jakość UX. Zależy nam na praktycznym doświadczeniu w zarządzaniu stanem aplikacji z wykorzystaniem Redux Toolkit oraz Zustand - dobierając narzędzia adekwatnie do złożoności projektu. W codziennej pracy powinien korzystać również z bibliotek komponentów, takich jak MUI (Material UI), przyspieszając development i dbając o spójność wizualną aplikacji. Oczekujemy, aby na warstwie backendowej pracował z NestJS, projektując i rozwijając REST API zgodnie z dobrymi praktykami architektonicznymi oraz zasadami czystego kodu. Kandydat powinien rozumieć koncepcje architektury mikroserwisowej i potrafić odnaleźć się w systemach rozproszonych. Zakres obowiązków: utrzymanie kodu istniejących aplikacji oparte o stack (docker, nodejs - nest, react, mysql, mongodb) wdrażanie nowych funkcjonalności w istniejącej aplikacji tworzenie rozwiązań ułatwiających korzystanie z platformy - raporty, analityka integracje nowych i istniejących systemów z zewnętrznymi REST API oparte o stack (docker, nodejs - nest, react, mysql, mongodb) wsparcie architekta systemów w projektowaniu nowych rozwiązań Oczekujemy: Kluczowe kompetencje techniczne: Frontend: • React 17+ • TypeScript • Redux Toolkit, Zustand • Tailwind CSS • MUI (Material UI) • Budowa responsywnych i skalowalnych UI • Integracja z REST API Backend: • NestJS • Tworzenie i rozwój REST API • Walidacja, autoryzacja, middleware • Projektowanie struktury aplikacji Bazy danych: • SQL • MySQL • MariaDB • MongoDB (podstawy) Testowanie: Jest - testy jednostkowe i integracyjne DevOps / Środowisko: • Docker - konteneryzacja aplikacji • Podstawy Linux (CLI, zarządzanie środowiskiem) - Podstawy CI CD w oparciu o GitHub Actions Architektura i dobre praktyki: • Znajomość architektury mikroserwisowej • Stosowanie zasad: • SOLID • KISS • DRY • Clean Code • Dbałość o modularność i skalowalność rozwiązań • Code review, standaryzacja struktury projektów Oferujemy: Współpracę B2B z wynagrodzeniem 13000- 16000 netto+VAT za 150h miesięcznie. Dużą samodzielność i realny wpływ na kształtowanie kierunku rozwoju produktu i procesów Możliwość pracy hybrydowej (biuro na Mokotowie) Swobodną i przyjazną atmosferę w zespole Pakiet benefitów - dofinansowanie do prywatnej opieki medycznej, karty Multisport, lekcji języka angielskiego oraz kafeteria MyBenefit

🏢 Summary: Full-Stack / Backend Developer role focused on building and maintaining scalable applications and REST APIs that support client products. The position involves developing new integrations, enhancing existing backend and frontend systems, and improving platform performance and reliability. You will contribute to architecture improvements and work within a cloud-based environment. 🗂️ Requirements: Minimum 3 years commercial experience, Experience with Java, Experience with Spring Boot, Experience with AWS, Experience with MongoDB, Experience with PostgreSQL, Experience with React.js, Experience designing REST APIs, Knowledge of backend architecture, Experience with cloud environments, Understanding of clean code principles, Experience working in Agile environment 📃 Skills: Java, SpringBoot, AWS, MongoDB, PostgreSQL, React, REST, Agile, Cloud, Architecture 🏢 Description: We are looking for an experienced Full-Stack / Backend Developer to join our team and help build scalable applications and APIs supporting our clients’ products. You will work on both backend and frontend solutions, contributing to product development, system improvements, and ongoing platform stability. Your Responsibilities Develop new APIs to support client integrations and business features. Maintain and enhance existing backend and frontend applications. Fix bugs and improve application performance and reliability. Upgrade and support operational aspects of the platform. Identify opportunities to improve product quality, architecture, and development processes. Collaborate with developers, product teams, and stakeholders to deliver high-quality solutions. Participate in code reviews and contribute to best engineering practices. Required Skills Minimum 3 years of commercial experience with: Java Spring Boot AWS MongoDB PostgreSQL React.js Experience designing and developing REST APIs. Knowledge of backend architecture and modern web applications. Experience working with cloud-based environments (AWS). Understanding of software development best practices and clean code principles. Ability to work in an Agile development environment.

🏢 Summary: Full-Stack Developer role focused on end-to-end development and maintenance of modern web applications using a PHP backend and React-based frontend. The position involves implementing features across the stack, integrating external APIs, and working with Dockerized environments and Figma-based designs. Emphasis is placed on code quality, autonomy, and technical ownership. 🗂️ Requirements: Minimum 4 years commercial experience as Full-Stack Developer or similar, Very good knowledge of PHP, Very good knowledge of Symfony or Laravel, Very good knowledge of React, Very good knowledge of Next.js, Very good knowledge of Tailwind CSS, Experience building and maintaining end-to-end web applications, Good knowledge of HTML, Good knowledge of CSS, Good knowledge of JavaScript, Good knowledge of TypeScript, Practical experience with Git and code review, Ability to work in Linux environment, Practical experience with Docker, Ability to work with Figma-based designs, Experience integrating external APIs 📃 Skills: PHP, Symfony, Laravel, React, Next.js, Tailwind, HTML, CSS, JavaScript, TypeScript, Git, Linux, Docker, Figma, API 🏢 Description: Szukamy doświadczonej osoby Full-Stack, która dobrze odnajduje się zarówno po stronie backendu, jak i frontendu. Pracujemy nad projektami webowymi, w których liczy się nie tylko dowożenie funkcjonalności, ale też jakość kodu, samodzielność i rozsądne podejście do technologii. Wymagania minimum 4 lata komercyjnego doświadczenia na stanowisku Full-Stack Developer lub podobnym, bardzo dobra znajomość PHP oraz frameworka Symfony lub Laravel, bardzo dobra znajomość React, Next.js i Tailwind CSS, doświadczenie w budowie oraz utrzymaniu aplikacji webowych end-to-end, dobra znajomość HTML, CSS, JavaScript i TypeScript, praktyczna znajomość Git oraz doświadczenie w pracy z code review, swoboda pracy w środowisku Linux, znajomość Dockera na poziomie codziennej pracy developerskiej, umiejętność pracy na podstawie projektów przygotowanych w Figmie, samodzielność, odpowiedzialność i dobra organizacja pracy, komunikatywność oraz umiejętność współpracy z zespołem. Mile widziane: doświadczenie przy aplikacjach mobilnych lub hybrydowych, np. React Native / Expo lub Ionic, podstawowa wiedza z zakresu DevOps i wdrożeń, doświadczenie z CI/CD oraz środowiskami kontenerowymi, znajomość testów jednostkowych, integracyjnych i e2e, doświadczenie w pracy z API oraz integracjami zewnętrznymi. Na czym będziesz pracować rozwój i utrzymanie aplikacji webowych w nowoczesnym stacku, implementacja funkcjonalności po stronie backendu i frontendu, integracje z zewnętrznymi systemami i API, współpraca z zespołem projektowym na bazie makiet i projektów z Figmy, udział w pracach związanych z lokalnymi środowiskami, deploymentem i technicznym rozwojem projektów.