Mid/Senior Fullstack PHP/React - Remote (Portugal-based)

🏢 Summary: Full-Stack Developer role focused on building and enhancing business applications using C#/.NET on the backend and React (18+) on the frontend. The position involves developing new features, maintaining and improving legacy code, and contributing to solution design within an Agile/Scrum team. Strong emphasis on backend expertise, frontend development, and architectural best practices. 🗂️ Requirements: 5+ years of experience with .NET and C#, 3+ years of experience with React (18+), Strong knowledge of .NET Framework, .NET Standard, .NET Core/.NET, Experience with debugging, profiling and performance analysis, Understanding of DDD, Clean Code and SOLID principles, Knowledge of architectural patterns and asynchronous communication, Good command of T-SQL, Experience with SQL Server Management Studio (SSMS), Experience with Visual Studio 📃 Skills: C#, .NET, React, TSQL, SQLServer, SSMS, VisualStudio, DDD, SOLID, CleanCode, Scrum, Debugging, Profiling, Architecture, Asynchronous 🏢 Description: We’re looking for an experienced Full-Stack Developer to build and evolve business applications using C#/.NET on the backend and React on the frontend. You’ll work closely with a cross-functional team (QA, Analysts, Product Owner) in an Agile/Scrum environment, contributing to both new development and improvements to existing (including legacy) codebases. Key responsibilities: Develop software in C# based on functional and technical documentation Build and maintain the frontend using React (18+) Analyse and improve existing code, including legacy components Contribute to solution design and architecture Collaborate daily with developers, testers, analysts and the Product Owner in Scrum Requirements: 5+ years of experience building applications with .NET / C# 3+ years of experience building applications with React Strong knowledge of C# (.NET Framework, .NET Standard, .NET Core/.NET) React experience with modern versions (React 18+) Practical skills in debugging, profiling and performance analysis Understanding of DDD, Clean Code, SOLID Knowledge of architectural patterns and asynchronous communication Good command of T-SQL and SQL Server Management Studio (SSMS) Experience working with Visual Studio Nice to have Experience building views/UI for mobile applications Background in projects for the financial sector Test automation experience (e.g., Postman, Playwright) Familiarity with WCAG accessibility standards

🏢 Summary: Oferta dotyczy pracy zdalnej na stanowisku Full Stack Developera przy rozwoju aplikacji webowej dla branży digital marketingu wykorzystującej AI i algorytmy rekomendacyjne. Rola obejmuje rozwój frontendu w React i Next.js oraz backendu w Pythonie, integracje API i pracę z Google Cloud Platform. Zespół rozwija nowoczesne rozwiązania z naciskiem na jakość, wydajność i współpracę między zespołami. 🗂️ Requirements: Minimum 3 lata doświadczenia z Python, Minimum 3 lata doświadczenia z React, Minimum 3 lata doświadczenia z Next.js, Znajomość TypeScript, Doświadczenie z REST API, Doświadczenie z relacyjnymi bazami danych, Znajomość Google Cloud Platform, Umiejętność pisania testów, Doświadczenie z Git, Umiejętność pracy z Figmą, Znajomość języka angielskiego 📃 Skills: Python, React, Next.js, TypeScript, REST, PostgreSQL, BigQuery, GCP, Git, Figma 🏢 Description: Szukamy Full Stack Developera do naszego zespołu, który rozwija aplikację webową dla branży digital marketingu. Budujemy rozwiązania wykorzystujące AI i algorytmy rekomendacyjne, rozwijając zarówno frontend oparty o React i Next.js, jak i backend tworzony w Pythonie. Całość działa w oparciu o PostgreSQL, BigQuery oraz Google Cloud Platform. Zakres zadań: rozwój i utrzymanie aplikacji webowej z wykorzystaniem Pythona, React i Next.js; tworzenie nowych funkcjonalności zarówno po stronie backendu, jak i frontendu; projektowanie i rozwój API oraz integracja aplikacji z zewnętrznymi usługami; implementacja interfejsów użytkownika na podstawie projektów przygotowanych w Figmie; tworzenie testów oraz dbanie o jakość, wydajność i niezawodność rozwijanych rozwiązań; współpraca z zespołem przy projektowaniu oraz wdrażaniu nowych funkcjonalności. Wymagania: min. 3 lata doświadczenia w pracy z Pythonem, React oraz Next.js; praktyczna znajomość TypeScript; doświadczenie w projektowaniu i rozwijaniu aplikacji komunikujących się poprzez REST API; doświadczenie w pracy z relacyjnymi bazami danych; praktyczna znajomość Google Cloud Platform; umiejętność pisania testów; doświadczenie w pracy z Git; umiejętność pracy z projektami przygotowanymi w Figmie; ownership mindset — bierzesz odpowiedzialność za swoje rozwiązania i potrafisz działać samodzielnie; dobrze odnajdujesz się we współpracy z różnymi zespołami oraz w środowisku wieloprojektowym, dynamicznie zmieniającym się; znasz angielski na poziomie pozwalającym na swobodną komunikację (w mowie i piśmie). Oferujemy: pracę w 100% zdalną; MacBooka służbowego oraz sprzęt potrzebny do komfortowej pracy; środowisko sprzyjające rozwojowi i zdobywaniu nowych umiejętności; kulturę pracy opartą na otwartości – możesz zadawać pytania, dzielić się pomysłami i mieć realny wpływ na rozwiązania; zespół zaangażowanych i kreatywnych osób, z którymi po prostu dobrze się pracuje; pakiet benefitów: prywatna opieka medyczna, karta sportowa, ubezpieczenie grupowe oraz platforma wellbeingowa.

🏢 Summary: Fullstack Developer role focused on building and enhancing dynamic web applications using .NET on the backend and React on the frontend. The position involves developing robust, high-performance solutions, integrating APIs, and resolving complex technical issues within a collaborative team environment. Strong emphasis is placed on delivering seamless end-to-end functionality. 🗂️ Requirements: 5+ years of fullstack development experience, .NET backend expertise, Strong React knowledge, Experience with WCF and REST APIs, Database management experience, Proficiency in HTML, JavaScript, CSS, Understanding of message queues, Fluent English communication 📃 Skills: .NET, C#, React, REST, WCF, SQL, HTML, JavaScript, CSS, Databases, MessageQueues, English 🏢 Description: Summary: The ideal candidate is expected to function as a Fullstack Developer, contributing both front-end and back-end functionalities with a strong focus on .NET and React technologies. The primary goal is to enhance the team's capabilities in developing seamless, robust applications. Main Responsibilities: Engage in full-stack development to create dynamic web applications. Implement the front-end components using React. Develop back-end services using .NET. Communicate effectively with team members and stakeholders in English. Investigate and resolve complex technical problems proactively. Collaborate with team members to enhance application performance and usability. Key Requirements: 5+ years of experience in fullstack development. Expertise in .NET for backend development. Strong understanding of React for frontend development. Fluent communication skills in English. Knowledge of Web APIs (WCF and REST APIs). Familiarity with database management. Competence in HTML, JavaScript, and CSS. Understanding of message queues. Nice to Have: Experience with cloud services or platforms. Familiarity with CI/CD practices. Exposure to Agile methodologies.

🏢 Summary: Fullstack Developer role focused on building and enhancing dynamic web applications using .NET on the backend and React on the frontend. The position involves developing robust services, implementing responsive UI components, and resolving complex technical issues. The goal is to strengthen the team’s capability to deliver high-performance, scalable applications. 🗂️ Requirements: 5+ years of fullstack development experience, .NET expertise for backend development, Strong React knowledge for frontend development, Experience with Web APIs (WCF, REST), Database management experience, Proficiency in HTML, JavaScript, CSS, Understanding of message queues 📃 Skills: .NET, React, WCF, REST, WebAPI, HTML, JavaScript, CSS, SQL, Databases, MessageQueues 🏢 Description: Summary: The ideal candidate is expected to function as a Fullstack Developer, contributing both front-end and back-end functionalities with a strong focus on .NET and React technologies. The primary goal is to enhance the team's capabilities in developing seamless, robust applications. Main Responsibilities: Engage in full-stack development to create dynamic web applications. Implement the front-end components using React. Develop back-end services using .NET. Communicate effectively with team members and stakeholders in English. Investigate and resolve complex technical problems proactively. Collaborate with team members to enhance application performance and usability. Key Requirements: 5+ years of experience in fullstack development. Expertise in .NET for backend development. Strong understanding of React for frontend development. Fluent communication skills in English. Knowledge of Web APIs (WCF and REST APIs). Familiarity with database management. Competence in HTML, JavaScript, and CSS. Understanding of message queues. Nice to Have: Experience with cloud services or platforms. Familiarity with CI/CD practices. Exposure to Agile methodologies.

🏢 Summary: Full-Stack Developer role focused on building and maintaining scalable server-side applications and responsive front-end interfaces using modern technologies. The position involves working with cloud and containerized environments, optimizing SQL Server databases, and contributing to architectural decisions. The role requires close collaboration with cross-functional teams to deliver high-quality software solutions. 🗂️ Requirements: 6+ years of full-stack application development experience, Proficiency in React, Proficiency in C#, Proficiency in ASP.NET, Proficiency in SQL, Experience with SQL Server and T-SQL, Ability to design and maintain server-side applications, Ability to develop responsive front-end interfaces 📃 Skills: C#, ASP.NET, .NET, React, AngularJS, Node.js, SQL, SQLServer, T-SQL, Cloud, Containers, Streaming 🏢 Description: Full-Stack Developer What you’ll do Design, develop, and maintain server-side applications using modern technologies such as C#/.NET and Node.js. Create and enhance responsive front-end interfaces with ReactJS and AngularJS. Optimize and manage SQL Server databases, writing efficient T-SQL procedures. Utilize cloud, containerization, and streaming technologies to build scalable and reliable systems. Contribute to architectural discussions and technical design decisions. Work closely with cross-functional teams to deliver high-quality software solutions. What’s required 6+ years of experience in full-stack application development. Proficiency in React, C#, ASP.NET , and SQL. Strong analytical and problem-solving skills with a focus on delivering robust solutions. Excellent attention to detail and commitment to quality. Effective communication and teamwork skills. High ethical standards and professionalism. Nice to have Experience with Node.js.

🏢 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.

🏢 Summary: Full-Stack Software Developer role focused on developing and modernizing a complex platform using Python and React. The position involves backend and frontend ownership, migration to a modern tech stack, and deployment in AWS within an Agile environment. The developer will contribute to architectural decisions and CI/CD processes. 🗂️ Requirements: 5+ years of software development experience, Strong experience with Python, Experience with React, Practical knowledge of PostgreSQL, Experience designing and consuming REST APIs, Experience with AWS, Experience with CI/CD pipelines, Experience with end-to-end testing tools, Experience working in Agile environments (Jira or Confluence) 📃 Skills: Python, React, PostgreSQL, REST, AWS, GitHubActions, Playwright, CICD, Jira, Confluence 🏢 Description: We are currently looking for a Full-Stack Software Developer to join an international team working on the development and modernization of a complex software platform. The role involves taking ownership of both backend and frontend development during an ongoing project transition, including migration of existing functionalities to a modern technology stack. You will collaborate with a distributed Agile team and have real influence on the technical direction of the frontend architecture. Key Responsibilities Design, develop, and maintain full-stack applications using Python and React Develop and maintain RESTful APIs Work with PostgreSQL databases Participate in the migration of existing application components to a modern frontend framework Implement end-to-end testing using tools such as Playwright Manage CI/CD pipelines using GitHub Actions Deploy and maintain applications in AWS Collaborate with engineers in an international Agile environment Contribute to architectural discussions and technical decisions Requirements 5+ years of experience in software development Strong experience with Python Experience with React Practical knowledge of PostgreSQL and REST APIs Experience working with AWS Familiarity with CI/CD pipelines (e.g., GitHub Actions) Experience with end-to-end testing tools (e.g., Playwright) Experience working in Agile environments using tools such as Jira or Confluence Strong communication skills and a proactive mindset Nice to Have Experience with NumPy or SciPy Experience working in distributed engineering teams Experience participating in application migrations or system transitions

🏢 Summary: Senior Full Stack Developer role focused on building and maintaining scalable financial-sector applications using .NET and React. The position involves backend and frontend development, API design, automated testing, and collaboration with cross-functional teams in a global engineering environment. 🗂️ Requirements: 6+ years of Full Stack Development experience, Strong knowledge of C#, Strong knowledge of .NET, Strong knowledge of React, Experience with Microsoft SQL Server, Experience with REST APIs, Experience with automated testing, Experience with CI/CD, Experience with Git, Experience with Docker, Understanding of software architecture, Understanding of microservices, Understanding of distributed systems, Strong problem-solving skills, Strong communication skills, Fluent English 📃 Skills: C#, NET, React, SQL, REST, Git, Docker, CI/CD, Microservices 🏢 Description: Senior Full Stack Developer (.NET & React) We are looking for an experienced Senior Full Stack Developer to join a global engineering team building business-critical applications for the financial sector. You will be responsible for designing, developing, and maintaining scalable backend services and modern web applications, working closely with business stakeholders and cross-functional teams. Responsibilities Design, develop, and maintain applications using C#/.NET and React . Build scalable APIs and responsive user interfaces. Collaborate with business and technical teams to deliver high-quality solutions. Write automated tests and contribute to CI/CD and DevOps best practices. Support production systems and drive continuous improvements in performance and reliability. Requirements 6+ years of experience as a Full Stack Developer. Strong expertise in C#/.NET , React , and Microsoft SQL Server . Experience with REST APIs, automated testing, CI/CD, Git, and Docker. Good understanding of software architecture, microservices, and distributed systems. Strong problem-solving and communication skills. Fluent English. Nice to Have Experience in the financial services or trading domain. Experience working in distributed, international teams.

🏢 Summary: Full Stack Developer role focused on building scalable, cloud-native applications using React and C# .NET Core in a capital markets environment. The position involves developing microservices, REST APIs, data pipelines, and analytical solutions supporting credit and market risk domains. 100% remote B2B contract with flexible start date. 🗂️ Requirements: 4-5+ years of full stack development experience, Strong expertise in React, Strong expertise in C#, Experience with .NET Core, Experience with microservices architecture, Experience with event-driven architecture, Experience with distributed systems, Experience building REST APIs, Hands-on experience with Python, Experience with PySpark, Experience with Power BI, Experience with data modeling, Experience in credit risk and market risk domains 📃 Skills: React, C#, .NETCore, Microservices, REST, TypeScript, Python, PySpark, PowerBI, DataModeling, DistributedSystems, EventDriven, Cloud 🏢 Description: Start Date: ASAP / Within 1 Month / Flexible Work Model: 100% remote Contract Type: B2B (140-160 PLN/h + VAT) We are looking for a highly skilled Full Stack Developer with deep expertise in React for frontend development and C# .NET Core for backend services. This role requires hands‑on experience building scalable, cloud‑native systems, along with strong exposure to capital markets, especially within credit risk and market risk domains. Expectations Minimum 4-5 years of professional software development experience across frontend and backend technologies. Strong expertise in React, C# .NET Core , microservices, event‑driven architecture, and distributed systems. Hands‑on experience with Python (pyspark), Power BI dashboards, data modeling, and analytical reporting. Responsibilities Develop and maintain full stack applications using React, C# .NET Core, and modern cloud‑native technologies. Build scalable backend services, REST APIs, and microservices with a focus on performance and resilience. Implement modular, accessible, and high‑quality frontend components using React and TypeScript. Collaborate with business and risk experts to deliver solutions in credit risk, market risk, and capital markets workflows. Work with Python (pyspark) to build data pipelines, transformations, and analytics processes. What We Offer Medicover healthcare package Multisport card Access to an e-learning platform Group life insurance

🏢 Summary: Senior Full-Stack Developer role focused on enhancing a platform using React and TypeScript on the frontend and .NET/C# with SQL Server on the backend. The position emphasizes strong frontend expertise while maintaining sufficient backend knowledge for independent task execution. Experience with legacy systems is considered an advantage. 🗂️ Requirements: 5+ years full-stack development experience (Mid) or 10+ years (Senior), Proficiency in React, Proficiency in TypeScript, Strong knowledge of modern JavaScript, Solid knowledge of C# and .NET, Ability to work with SQL Server 📃 Skills: React, TypeScript, JavaScript, C#, .NET, SQL, SQLServer, ClassicASP 🏢 Description: Summary: A senior full-stack developer position focused on enhancing our platform through modern technologies, primarily using React and TypeScript on the frontend and .NET/C# with SQL Server on the backend. Main Responsibilities: Strengthen the focus on React and TypeScript as the primary and most critical skills, with a solid foundation in modern JavaScript. Utilize .NET/C# and SQL Server as supporting skills to ensure self-sufficiency in day-to-day tasks without primary responsibility for complex backend or database optimization. Leverage knowledge of legacy technologies, such as Classic ASP, for understanding existing logic as a nice-to-have skill. Key Requirements: At least 5 years of experience (Mid-level) or 10 years (Senior-level) in full-stack development. Proficiency in React and TypeScript. Solid foundation in modern JavaScript and C# / .NET. Nice to Have: Experience with legacy systems like Classic ASP.