Senior Python Fullstack Developer

🏢 Summary: Fullstack Developer role focused on building scalable web applications using ASP.NET, C#, and React, with strong emphasis on API design, event-driven architecture, and cloud-native environments. The position involves end-to-end development, CI/CD practices, containerized deployments, and collaboration in agile teams. Ideal for engineers experienced in backend services, modern frontend ecosystems, and orchestration tools. 🗂️ Requirements: Strong experience with ASP.NET, Strong experience with C#, Experience building scalable backend services and APIs, Strong experience with React, Understanding of modern frontend architecture, Experience with API design, Experience with GitLab CI/CD, Experience with RabbitMQ, Experience with Docker, Experience with Kubernetes 📃 Skills: ASP.NET, C#, React, TanStack, Tailwind, Playwright, RabbitMQ, Docker, Kubernetes, GitLab, Linux, Unity, APIs, CI/CD 🏢 Description: Role Overview We are looking for a skilled Fullstack Developer with strong backend expertise in ASP.NET and C#, combined with modern frontend development using React. The role involves building scalable web applications, designing robust APIs, and contributing to cloud-native and event-driven architectures. The ideal candidate is comfortable working across the full stack, collaborates well in agile teams, and has an interest in modern tooling, orchestration, and frontend ecosystems. Core Responsibilities • Design, develop, and maintain scalable fullstack applications • Build and maintain backend services using ASP.NET and C# • Develop responsive and modern frontend applications using React • Design and integrate APIs and asynchronous communication flows • Collaborate with developers, designers, QA, and DevOps teams • Contribute to architecture discussions and technical decisions • Ensure code quality through testing, reviews, and CI/CD practices • Participate in deployment, monitoring, and troubleshooting activities Must-Have Skills Backend • Strong experience with ASP.NET • Strong experience with C# • Experience building scalable backend services and APIs Frontend • Strong experience with React • Good understanding of modern frontend architecture and component-based development Should-Have Skills • Experience with GitLab Pipelines / CI-CD • Experience with API design and best practices Frontend Libraries & Tooling • Experience with: o TanStack o Tailwind CSS o Playwright o AI agent development (Kiro, Claude, Cursor) Messaging & Async Communication • Experience with: o RabbitMQ o Event-driven and asynchronous communication patterns • Understanding of async workflows across frontend and backend systems Infrastructure & Orchestration • Experience with: o Docker o Kubernetes • Familiarity with containerized deployments and orchestration Nice-to-Have Skills • Interest or experience in Unity / game development • Strong Linux competence Preferred Qualifications • Experience working in agile development environments • Strong problem-solving and debugging skills • Understanding of scalable and maintainable software architecture • Good communication and collaboration skills • Passion for learning modern technologies and frameworks Tech Stack Summary Area Backend: ASP.NET, C# Frontend: React Frontend Libraries: TanStack, Tailwind, Playwright Messaging: RabbitMQ Infrastructure: Docker, Kubernetes CI/CD: GitLab Pipelines Additional: Linux, API Design, Unity

🏢 Summary: Full Stack Developer role combining frontend and backend development with strong DevOps and CI/CD responsibilities. The position involves building scalable web applications, managing cloud infrastructure, and automating testing and deployment pipelines. You will work across the stack to ensure reliable, high-performance systems. 🗂️ Requirements: Proven experience as Full Stack Developer, Proficiency in Angular or React, Backend development experience with Node.js, Java, Python, or .NET, Hands-on experience with CI/CD tools, Experience with Docker, Familiarity with AWS, Azure, or GCP, Strong knowledge of Git, Experience in Agile/Scrum environments 📃 Skills: Angular, React, Node.js, Java, Python, .NET, CI/CD, Jenkins, GitHub, GitLab, Docker, Kubernetes, AWS, Azure, GCP, Git, Terraform, CloudFormation, Prometheus, Grafana, ELK 🏢 Description: We are looking for a skilled Full Stack Developers with strong DevOps and CI/CD experience to join our growing team in Warsaw. This role is ideal for someone who enjoys working across the entire stack while also contributing to infrastructure, automation, and deployment pipelines. You will play a key role in building scalable applications, improving development workflows, and ensuring smooth, reliable deployments. Key Responsibilities Design, develop, and maintain full stack web applications Build modern frontend applications using Angular or React Develop and integrate RESTful APIs and backend services Implement and manage CI/CD pipelines for automated testing and deployment Collaborate with cross-functional teams including product, QA, and design Optimize applications for performance, scalability, and security Manage cloud infrastructure and deployment environments Monitor systems and troubleshoot production issues Required Skills & Experience Proven experience as a Full Stack Developer Strong proficiency in Angular or React Solid backend development experience (e.g., Node.js, Java, Python, or .NET) Hands-on experience with CI/CD tools (e.g., Jenkins, GitHub Actions, GitLab CI) Experience with containerization (Docker) and orchestration (Kubernetes is a plus) Familiarity with cloud platforms (AWS, Azure, or GCP) Strong understanding of version control systems (Git) Experience working in Agile/Scrum environments Nice to Have Infrastructure as Code (Terraform, CloudFormation) Experience with microservices architecture Knowledge of monitoring and logging tools (Prometheus, Grafana, ELK stack) What We Offer Hybrid work model (2 days onsite in Warsaw, flexible remote work) Competitive salary and benefits package Opportunity to work with modern technologies and cloud platforms Collaborative and innovative team environment Professional growth and development opportunities How to Apply If you are passionate about full stack development and DevOps practices, we’d love to hear from you. Please submit your CV along with a brief summary of your experience.

🏢 Summary: Senior Full Stack Developer role focused on owning and scaling a customer-facing dashboard and its underlying systems. The position covers end-to-end development across React frontend and Node.js backend, with responsibility for architecture, APIs, databases, and security. It also emphasizes AI-assisted development and driving high-quality, rapid code delivery. 🗂️ Requirements: Senior-level full stack development experience, Strong React frontend development experience, Strong Node.js backend development experience, Experience building RESTful APIs, Experience building GraphQL APIs, Experience with SQL databases, Experience with NoSQL databases, Experience with authentication and authorization implementation, Experience designing secure applications, Experience with AI-assisted development tools 📃 Skills: React, Node.js, REST, GraphQL, SQL, NoSQL, APIs, Authentication, Authorization, Security, Claude, Codex 🏢 Description: We are seeking a Senior Full Stack Developer who thrives in fast-paced environments and takes full ownership of product experiences. This role is central to building and scaling our customer-facing dashboard and the systems behind it, while driving a culture of rapid, high-quality code delivery powered by modern AI tools. Own end-to-end development of the customer-facing dashboard, including both frontend (React) and backend services Design, build, and maintain scalable full-stack applications using modern best practices Lead frontend development with React, delivering production-ready, high-performance interfaces Architect and implement backend systems using Node.js Develop and maintain APIs using both RESTful and GraphQL approaches Design and manage data models across SQL and NoSQL databases Take full responsibility for application security, including best practices in authentication, authorization, and data protection Build and evolve AI-assisted development workflows (e.g., Claude, Codex) to enable faster, more efficient code shipping Drive and instill a culture of rapid, high-quality delivery across the team, including mentoring current and new hires Collaborate with cross-functional teams to define, design, and ship new features

🏢 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: 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: The offer is for a Full Stack Software Engineer to design and develop scalable backend services, RESTful APIs, and modern frontend applications using TypeScript and React or Angular. The role involves working with Python, PostgreSQL, and AWS-based cloud environments to deliver reliable, high-performance solutions. It also includes contributing to CI/CD pipelines and cloud-native infrastructure setup. 🗂️ Requirements: Strong experience with TypeScript, Proficiency in React or Angular, Backend and RESTful API development experience, Experience with Python, Knowledge of relational databases, Experience with PostgreSQL, Experience with AWS cloud services, Ability to work across the full stack, Experience with CI/CD pipelines, Experience with cloud infrastructure setup 📃 Skills: TypeScript, React, Angular, Python, REST, PostgreSQL, AWS, CI/CD, Kubernetes, Docker 🏢 Description: Do you enjoy building polished, user-friendly applications while working across the full stack? We are looking for a talented Full Stack Software Engineer to design and develop scalable backend services, RESTful APIs, and modern frontend applications using TypeScript and React or Angular. You’ll also get to leverage Python for backend scripting and work with cloud-native systems to deliver solutions that make a real impact. What You’ll Do: Build and maintain RESTful APIs and backend services in a cloud environment. Develop responsive frontend applications using React/TypeScript or Angular. Work with relational databases (PostgreSQL) and integrate multiple data sources. Ensure applications are reliable, scalable, and performant. Collaborate with stakeholders to translate requirements into high-quality technical solutions. Contribute to CI/CD pipelines, deployment automation, and cloud infrastructure setup. Must Haves: Strong experience with TypeScript and React or Angular Backend/API development experience and familiarity with Python Knowledge of relational databases and cloud-based systems (AWS preferred) Ability to work across the full stack and take ownership of solutions Nice to Haves: Experience with distributed systems or service-oriented architectures Familiarity with containers, Kubernetes, and cloud-native deployment patterns Exposure to data-intensive or analytics-driven applications

🏢 Summary: Full Stack Software Engineer role focused on building scalable backend services and RESTful APIs while developing modern frontend applications using TypeScript and React or Angular in a cloud environment. The position involves working across the full stack, leveraging Python, PostgreSQL, and AWS to deliver reliable, high-performance solutions. You will contribute to CI/CD pipelines and cloud infrastructure setup to support scalable deployments. 🗂️ Requirements: Strong experience with TypeScript, Strong experience with React or Angular, Backend and RESTful API development experience, Experience with Python, Knowledge of relational databases, Experience with cloud-based systems, Ability to work across the full stack 📃 Skills: TypeScript, React, Angular, Python, REST, PostgreSQL, AWS, CI/CD, Kubernetes, Docker 🏢 Description: Do you enjoy building polished, user-friendly applications while working across the full stack? We are looking for a talented Full Stack Software Engineer to design and develop scalable backend services, RESTful APIs, and modern frontend applications using TypeScript and React or Angular. You’ll also get to leverage Python for backend scripting and work with cloud-native systems to deliver solutions that make a real impact. What You’ll Do: Build and maintain RESTful APIs and backend services in a cloud environment. Develop responsive frontend applications using React/TypeScript or Angular. Work with relational databases (PostgreSQL) and integrate multiple data sources. Ensure applications are reliable, scalable, and performant. Collaborate with stakeholders to translate requirements into high-quality technical solutions. Contribute to CI/CD pipelines, deployment automation, and cloud infrastructure setup. Must Haves: Strong experience with TypeScript and React or Angular Backend/API development experience and familiarity with Python Knowledge of relational databases and cloud-based systems (AWS preferred) Ability to work across the full stack and take ownership of solutions Nice to Haves: Experience with distributed systems or service-oriented architectures Familiarity with containers, Kubernetes, and cloud-native deployment patterns Exposure to data-intensive or analytics-driven applications

🏢 Summary: Senior Full Stack Developer role focused on building scalable, cloud-native applications using React and C# .NET Core within capital markets risk domains. The position involves developing microservices, REST APIs, data pipelines with Python (pyspark), and enterprise Power BI solutions. Strong emphasis on event-driven architectures, CI/CD automation, and Azure-based cloud environments. 🗂️ Requirements: 10+ years software development experience, Strong proficiency in React.js and JavaScript/TypeScript, Expertise in C# and .NET Core, Experience building REST APIs and microservices, Hands-on experience with Python and pyspark, Extensive Power BI development experience, Strong knowledge of microservices and event-driven architectures, Experience with CI/CD pipelines, Experience with Azure or AWS, Proficiency in SQL databases, Experience with Docker and Kubernetes, Understanding of credit risk and market risk domains 📃 Skills: React, JavaScript, TypeScript, Redux, C#, .NET, Python, pyspark, PowerBI, DAX, SQL, SQLServer, PostgreSQL, Docker, Kubernetes, Azure, AWS, Kafka, EventHub, Jenkins, GitHub, AzureDevOps, REST, Microservices 🏢 Description: About the Role We are seeking a highly experienced Senior Full Stack Developer with deep expertise in React on the frontend and C# .NET Core on the backend. The ideal candidate will have substantial hands-on experience developing scalable applications, strong exposure to cloud-native architectures, and a solid understanding of capital markets—particularly in credit risk and market risk domains. Experience with Python (pyspark) for data-driven workflows and a strong command of CI/CD, microservices, and event-driven architectures is essential. ________________________________________ Key Responsibilities Design, develop, and maintain full stack applications using React, C#.NET Core, and supporting technologies. Build high-performance backend services, RESTful APIs, and microservices with focus on scalability, maintainability, and resilience. Develop responsive, modular, and accessible UI components using React and modern JS/TS patterns. Collaborate closely with business stakeholders and risk domain experts to deliver solutions in credit risk, market risk, and related capital markets functions. Work with Python (pyspark) for data transformation, data pipelines, and analytics workflows. Develop, optimize, and maintain Power BI dashboards, data models, and analytical reports for business users. Implement and optimize CI/CD pipelines, ensuring robust automated testing, deployment, and monitoring. Architect and contribute to event-driven and distributed system designs using technologies such as Kafka, Event Hub, or similar. Drive engineering best practices: code reviews, unit/integration testing, performance tuning, documentation. Contribute to cloud migration and modernization initiatives, especially in Azure or AWS environments. Mentor junior developers and collaborate within a cross-functional agile team. ________________________________________ Required Skills & Experience Technical Skills 10+ years of professional software development experience. Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, hooks, and modern UI patterns. Back-end: Expertise in C# .NET Core, C#, REST APIs, Web APIs, and microservices-based development. Python (pyspark): Hands-on experience with distributed data processing, data pipelines, and analytic transformations. Power BI: Extensive experience developing dashboards, data models, DAX calculations, and enterprise-grade BI solutions. Strong understanding of data modeling, performance tuning, and governance in Power BI. Architecture: Strong knowledge of microservices, API design, event-driven architectures, and distributed systems. DevOps / CI/CD: Experience with Azure DevOps, GitHub Actions, Jenkins, or similar. Strong understanding of automated builds, testing, deployment, and monitoring. Cloud Platforms: Experience with Azure or AWS (Azure preferred). Databases: Proficiency with SQL Server, PostgreSQL, or other relational databases; NoSQL knowledge a plus. Containerization: Experience with Docker, Kubernetes, container orchestration. Domain Knowledge Understanding of capital markets, specifically: Credit risk (PD, LGD, EAD, credit exposure modeling, counterparty risk). Market risk (VaR, sensitivities, stress testing, pricing concepts). Familiarity with regulatory frameworks (e.g., Basel, FRTB, IFRS9) is a strong advantage. ________________________________________ Soft Skills Strong analytical and problem solving abilities. Excellent communication skills and ability to interact with technical and non-technical stakeholders. Collaborative, agile mindset with experience in Scrum/Agile environments. Ability to work independently and lead technical solutions end to end.

🏢 Summary: Full-Stack Front-End Developer role focused on building and enhancing modern, cloud-based web applications with strong emphasis on user experience, performance, and scalability. The position involves developing frontend features in React.js, integrating with Java backend services, and working within AWS environments. The role includes maintaining existing applications, optimizing performance, and contributing to best development practices in an Agile team. 🗂️ Requirements: Minimum 3 years commercial experience with React.js, Minimum 3 years commercial experience with JavaScript, Minimum 3 years commercial experience with TypeScript, Minimum 3 years commercial experience with Java, Minimum 3 years commercial experience with AWS, Experience building responsive web applications, Experience integrating frontend applications with APIs, Understanding of frontend architecture, Knowledge of Agile methodologies 📃 Skills: React.js, JavaScript, TypeScript, Java, AWS, API, Agile 🏢 Description: We are looking for a Full-Stack Front-End Developer who is passionate about building modern, cloud-based applications and delivering excellent user experiences. You will work on developing and maintaining several existing applications and services, focusing on improving usability, performance, and scalability in a cloud environment. Responsibilities Maintain and develop high-quality user experiences across multiple web applications and services. Build and enhance frontend features using React.js and modern JavaScript frameworks. Collaborate with backend services developed in Java . Improve application performance, usability, and responsiveness. Work with cloud-based environments hosted on AWS . Fix bugs, optimize existing solutions, and introduce improvements. Collaborate closely with developers, product teams, and stakeholders. Contribute to code reviews and follow best development practices. Required Skills Minimum 3 years of commercial experience with: React.js JavaScript TypeScript Java AWS Experience building responsive and user-focused web applications. Understanding of frontend architecture and modern UI development practices. Experience integrating frontend applications with APIs. Knowledge of Agile development methodologies. Strong problem-solving and communication skills.

🏢 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.