Senior Fullstack Developer (.NET + Blazor / Angular)

🏢 Summary: Remote B2B opportunity for a senior .NET Developer to design, build, and maintain complex web applications using modern cloud and microservices architecture. The role focuses on C#/.NET development, cloud platforms, DevOps practices, and AI-augmented workflows. You will contribute to full lifecycle development, automated deployments, and high-quality engineering standards. 🗂️ Requirements: Minimum 5 years of professional experience as .NET or Fullstack Developer, Strong experience with C# and .NET/.NET Framework, Experience with ASP.NET MVC Core, Experience with Blazor and React, Experience with MS SQL and Entity Framework, Experience with Azure or AWS, Experience with microservices and event-driven architecture, Experience with Kubernetes and Docker, Knowledge of SOLID principles, Experience with Git version control, Proficiency in using AI tools for code generation, testing, and refactoring, Experience working in Agile methodologies, English level B2 or higher 📃 Skills: C#, .NET, ASP.NET, MVC, Blazor, React, Azure, AWS, AzureFunctions, SQL, MSSQL, EntityFramework, MongoDB, Kubernetes, Docker, Microservices, SOA, Git, SOLID, AI, DevOps 🏢 Description: Hi there! We are STX Next, a global IT consulting company specializing in customer-focused software services. Join a group of 500 professionals dedicated to helping customers build outstanding products. Leveraging the latest advancements in the field, and a passion for innovation, we're shaping the future of technology one project at a time. Are you the NEXT one? Type of contract A B2B contract for your flexibility and competitive compensation package Location A remote work model encouraging work-life balance. Salary Up to 25 200 PLN net+VAT Job description We are looking for a skilled .Senior Fullstack Developer (.NET + Blazor / Angular) with experience in ASP.MVC Core, EntityFramework, SQL, Mongo, and Azure/AWS. The ideal candidate will have a strong understanding of web development principles and be able to design, develop, and maintain complex web applications. Responsibilities Designing, developing, and maintaining applications using .NET technologies. Writing clean, maintainable, and efficient code. Troubleshooting and debugging applications. Implementing security and data protection. Collaborating with team members for continuous improvement. Staying up-to-date with new technology trends. Designing, implementing, and maintaining automated builds and deployment. Spreading knowledge about new and relevant technologies among the development team. Coding features (data access, business logic, and UI), fixing bugs, and writing unit tests. Testing and documenting (if required to help the team achieve goals). Helping with production issues. Helping to develop/maintain the DevOps culture in the organization. Conducting code reviews of other team members. Requirements Must have: Minimum 5 years of professional experience as a .NET or Fullstack Developer, with a strong focus on C#, .NET, .NET Framework, and ASP. NET MVC Core. Experience with web and cloud technologies, including Blazor, React, Azure Functions , MS SQL, and Entity Framework. Solid background in modern architecture, specifically microservices (SOA), event-driven design, Kubernetes, and Docker. Deep understanding of engineering best practices, including web development principles, SOLID, and Git version control. Proficiency in using Agentic AI in daily workflows for code generation, reviews, documentation, testing, and refactoring. Experience working in Agile methodologies, demonstrating initiative and the ability to deliver results without close supervision. Strong analytical, problem-solving, and communication skills, combined with an internal drive for technical excellence. High adaptability and a positive "can-do" attitude, with the ability to change direction based on lessons learned. English proficiency at a B2 level or higher. Nice to have: Ability to create containerized applications. Ability to choose and configure the correct MCP for the project needs. Experience with CQRS pattern using MediatR. Experience with GraphQL, GRPC. Experience with integrating AI tools into team workflows. Experience with defining and configuring AI-augmented workflows using structured formats (XML, YAML). Good understanding of serverless architecture and Azure Cloud/AWS. Knowledge of NoSQL databases like MongoDB, Redis, Duck DB. Benefits Remote-First Flexibility Stay where you feel most productive. Here’s a remote-first environment with the freedom to set your own schedule. Whether you need a midday break or a specific routine, we trust you to manage your time and deliver results while maintaining your personal well-being. Cafeteria System & Health Membership We provide access to premium medical packages which include Medicover Sport. You can also choose a MultiSport card and group insurance options. All these packages are managed through Cafeteria System, giving you the autonomy to choose exactly what fits your lifestyle. Collaboration Mindset Facing a complex challenge? At STX Next, you collaborate with true enthusiasts and experts who prioritize professional support and direct, honest feedback. Tech Events Gain access to specialized knowledge through bootcamps, Strategic Skills Labs, and Tech Knowledge Hubs focused on AI, Data, and Cloud. Beyond our internal webinars and technical materials, we host branded meetups like DevDuck and PAIDA . In-person Networking We support autonomy by enabling project groups to set up their own internal meetings in a location they prefer, often in our Poznań or Gliwice offices, which are great for coordination and building professional relationships. We also take a break from our screens twice a year for our Summer and Winter events. Professional Toolkit Prior to your first day as a NEXTer, you will receive a top-tier equipment setup: laptops, monitor, and peripherals tailored to your needs and specific project role. Additionally, we can provide access to external accounting assistance to help you set up and manage your B2B activity in Poland. And much more, find out HERE

🏢 Summary: Remote Fullstack Developer role with a frontend-first focus, leading the design and scaling of Vue 3 applications while contributing to a Python/FastAPI backend. The position involves owning web architecture, ensuring secure and scalable integrations, and driving CI/CD-based cloud deployments. You will deliver end-to-end solutions from frontend strategy to production deployment. 🗂️ Requirements: Minimum 5 years of professional web development experience, Strong proficiency in TypeScript, Deep expertise in Vue 3 (Composition API), Commercial experience with Python and FastAPI, Ability to design web application architectures, Knowledge of SOLID principles and design patterns, Experience with PostgreSQL, DynamoDB, and Redis, Experience with cloud platforms (AWS, Azure, or GCP), Experience implementing CI/CD pipelines, Experience with TDD, unit testing, and debugging, Proficiency with Git and version control systems 📃 Skills: TypeScript, Vue, JavaScript, Python, FastAPI, PostgreSQL, DynamoDB, Redis, AWS, Azure, GCP, CI/CD, TDD, Git, SOLID 🏢 Description: Hi there! We are STX Next, a global IT consulting company specializing in customer-focused software services. Join a group of 500 professionals dedicated to helping customers build outstanding products. Leveraging the latest advancements in the field, and a passion for innovation, we're shaping the future of technology one project at a time. Are you the NEXT one? Type of contract A B2B contract for your flexibility and competitive compensation package Location A remote work model encouraging work-life balance. Job description We are looking for a talented Fullstack Developer with a frontend-first mindset and deep expertise in Vue.js . While this role involves working with a Python/FastAPI backend, your primary impact will be in designing and scaling our frontend architecture. The ideal candidate is a Vue specialist who is also comfortable building and maintaining the APIs that power their UI. Responsibilities Lead the frontend strategy: Design and develop sophisticated, highly interactive user interfaces using Vue 3 . Fullstack development: Build and maintain scalable backend services using Python and FastAPI . Architectural design: Take ownership of web application architectures, ensuring seamless integration between the UI and data layers. Clean code & standards: Write clean, maintainable, and modular code, prioritizing frontend performance and state management. Security & Protection: Implement robust security measures and data protection across the entire stack. DevOps & Deployment: Design, implement, and maintain automated builds and deployments (CI/CD). Mentorship: Lead code reviews and share knowledge on modern frontend trends and best practices with the wider team. End-to-end delivery: From configuring development environments to cloud deployment, you will drive features from concept to production. Requirements Strong Frontend Foundation: Deep proficiency in TypeScript and Vue 3 (Composition API). Fullstack Experience: A minimum of 5 years of professional experience in web development, with significant time spent building applications with Python (FastAPI) . Architecture & Design: Proven ability to design web application architectures and implement design patterns (SOLID). Data Management: Strong understanding of PostgreSQL , DynamoDB , and Redis . Cloud & DevOps: Experience leading deployments in the cloud ( AWS, Azure, or GCP ) and implementing CI/CD pipelines. Quality First: Extensive experience with TDD , unit testing, and debugging complex systems. Tools: Mastery of Git and version control systems. Language: Proficiency in English and Polish (B2/C1 level). Soft Skills: A collaborative, team-oriented mindset and experience working in Agile environments. Nice to Have: Advanced state management and data fetching: Pinia and TanstackQuery . Experience with Shopify Extensions . Familiarity with RabbitMQ for asynchronous processing. Hands-on experience with containerized applications and microservices. Exposure to Vanilla React . Benefits Remote-First Flexibility Work from where you feel most productive. We offer a remote-first environment with the freedom to set your own schedule in coordination with your team. Whether you need a midday break or a specific routine, we trust you to manage your time and deliver results while maintaining your personal well-being. Reimbursed private medical care (Medicover) and Multisport We care about the health and well-being of our colleagues. Choose a sports card and dedicated medical care for yourself and your relatives. Leader’s support Work with true enthusiasts and professionals who will support you along the way. You can count on leaders and experts who are willing to share their knowledge so that you too can join their ranks someday. Technology focus Python and JavaScript are not our only strengths, we are also very good at React Native, IoT, Machine Learning, .Net, DevOps and Blockchain. Growth review Junior, Regular or Senior? Every year we have a chance to discuss acquired skills and prepare a development plan for upcoming months. Events Attend exciting internal webinars, celebrate special days with us, and join us at conferences and meetups as a listener or speaker! Workation Team trips where you have a chance as a team not only to work together, but also integrate f2f.

🏢 Summary: Remote Fullstack Developer role focused on building and maintaining a modern cloud-based platform for the insurance and financial services sector. The position involves developing backend services in .NET and frontend components in Angular, deployed on Microsoft Azure. It is a long-term project within an international agile team. 🗂️ Requirements: Strong experience in fullstack development with .NET and Angular, Hands-on experience with .NET 8, .NET Core, ASP.NET Core, C# 10, Experience with Entity Framework, Proficiency in Angular and TypeScript, Experience with SQL databases, Experience with Microsoft Azure services: Service Bus, Azure SQL, App Service, Azure DevOps, Experience with cloud-based solution design and development, Experience with unit testing and code reviews, Proficiency with Visual Studio or JetBrains IDEs, Experience working in Agile environments 📃 Skills: .NET, .NET8, .NETCore, ASPNETCore, C#, EntityFramework, Angular, TypeScript, SQL, Azure, ServiceBus, AzureSQL, AppService, AzureDevOps, VisualStudio, JetBrains, UnitTesting, Agile 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking an experienced Fullstack Developer (.NET + Angular) to join a remote development team. This role focuses on developing a modern technology platform that supports core business processes in the insurance and financial services sector. If you are an experienced fullstack developer who thrives in a collaborative environment, takes ownership, and proactively proposes solutions, this role is for you. Project information: Type of project: IT services Office location: Poland Work mode: Remote Budget: 100-130 PLN net /h - b2b Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate availability) Project scope: Develop backend services using .NET 8 / .NET Core / ASP.NET Core and C# 10 Implement frontend components using Angular and TypeScript Design and maintain scalable, reliable, and secure cloud-based solutions hosted on Microsoft Azure Work with Azure services including Service Bus, Azure SQL, App Service, and Azure DevOps pipelines Expand and maintain the existing code base, ensuring quality through unit tests and code reviews Collaborate with an international, distributed team following agile practices Ensure consistent implementation and alignment with modern software engineering best practices Requirements: Strong background in fullstack development with .NET and Angular Hands-on experience with .NET 8, .NET Core, ASP.NET Core, C# 10, and Entity Framework Proficiency in Angular, TypeScript, and SQL Experience with Visual Studio / JetBrains IDEs Azure experience: Service Bus, Azure SQL, App Service, Azure DevOps (pipelines and automation) Strong communication skills, proactiveness, attention to detail, and ability to lead feature implementations Agile mindset and experience working in team-based environments Nice to have experience in insurance or financial services projects We offer: Remote working model Full-time job agreement based on b2b and employment contract Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance

🏢 Summary: Fullstack Developer role focused on building and scaling IoT management systems, e-commerce platforms, and AI-based modules using Node.js and React. The position involves end-to-end software development in an international Agile team, covering architecture, implementation, deployment, and maintenance. The role requires hybrid work from Warsaw and active contribution to high-quality, cloud-based web solutions. 🗂️ Requirements: 3-5 years of commercial fullstack development experience, Proficiency in Node.js, Proficiency in React.js, Strong knowledge of TypeScript, Experience with Next.js, Experience with Express, Practical experience with AWS services (EC2, Lambda, S3, SQS), Ability to design and develop APIs, Experience with MongoDB, Proficiency with Git, Knowledge of CI/CD processes, Good command of English 📃 Skills: Node.js, React.js, TypeScript, Next.js, Express, AWS, EC2, Lambda, S3, SQS, MongoDB, Git, CI/CD, Agile, SCRUM 🏢 Description: Dla naszego klienta poszukujemy kandydatów na stanowisko: Fullstack Developer (Node.js, React) Projekt: 🚀 Rozwój innowacyjnych systemów z obszaru IoT do zarządzania urządzeniami elektronicznymi w przestrzeniach komercyjnych, a także tworzenie platform e-commerce i zaawansowanych modułów bazujących na sztucznej inteligencji ( m.in . rozpoznawanie obrazu) oraz narzędzi automatyzujących procesy QA. Stack technologiczny: 💻 React.js, Node.js, TypeScript, Next.js, Express, ekosystem AWS (S3, Lambda, EC2, SNS, SQS), MongoDB, Git, narzędzia CI/CD Zespół: 👥 Międzynarodowe grono specjalistów (ok. 8-9 osób), budowane dla stabilnej firmy technologicznej z korzeniami w Niemczech. Współpraca opiera się na płaskiej strukturze i dużej otwartości, a w codziennej pracy wspierać Cię będą doświadczeni liderzy techniczni oraz eksperci front-end. Metodyka pracy: 🔄 Agile / SCRUM Model współpracy: 🏢 Praca hybrydowa z biura w Warszawie (2 dni z biura, 3 dni pracy zdalnej) Zakres obowiązków: 🛠️ Aktywne uczestnictwo w pełnym cyklu powstawania oprogramowania – od fazy koncepcyjnej, przez architekturę, aż po wdrożenie i testowanie. Tworzenie, rozwój i utrzymanie skalowalnych rozwiązań webowych przy ścisłej współpracy z resztą międzynarodowego zespołu. Analiza wymagań, estymacja zadań oraz proponowanie nowych narzędzi lub bibliotek, które usprawnią projekt. Dbanie o najwyższą wydajność, niezawodność i jakość tworzonego kodu. Rozwiązywanie złożonych problemów inżynieryjnych. Przekładanie technicznych zawiłości na język zrozumiały dla nietechnicznych współpracowników oraz prezentowanie efektów swojej pracy. Oczekujemy: 🎯 Około 3-5 lat komercyjnego doświadczenia w tworzeniu oprogramowania ze znajomością środowiska backendowego i frontendowego. Biegłości w pracy z technologiami takimi jak: Node.js, React.js, TypeScript, Next.js oraz Express. Praktycznego doświadczenia w korzystaniu z usług chmurowych AWS (w tym m.in . EC2, Lambda, SQS, S3). Umiejętności projektowania API oraz dobrej znajomości baz danych (MongoDB). Biegłości w korzystaniu z systemów kontroli wersji (Git) oraz znajomości praktyk DevOps i procesów CI/CD. Dobrej znajomości języka angielskiego (niezbędna do codziennej komunikacji w zespole). Samodzielności w realizacji zadań, ale też umiejętności świetnej pracy zespołowej i dbałości o detale. Oferujemy: ✨ Zatrudnienie w oparciu o Umowę o Pracę. Prywatną opiekę medyczną (z opcją rozszerzenia pakietu dla bliskich). Dofinansowanie do zajęć sportowych oraz możliwość skorzystania z ubezpieczenia na życie. Kartę lunchową (zasilaną co miesiąc) po zakończeniu okresu próbnego. Elastyczne godziny rozpoczynania pracy (pomiędzy 8:00 a 10:00) i duże zrozumienie dla prywatnych spraw w ciągu dnia. Środowisko stawiające na "learning by doing" z szerokim dostępem do materiałów edukacyjnych i platform szkoleniowych (np. Udemy). Proces rekrutacyjny: 🤝 Rozmowa wprowadzająca: weryfikacja dopasowania do projektu oraz swobody komunikacji w języku angielskim. Wyzwanie techniczne (take-home assignment): praktyczne zadanie programistyczne do wykonania (czas na realizację to 7 dni). O nas Next Technology Professionals to wyspecjalizowana agencja rekrutacyjna i firma outsourcingowa o silnym profilu technologicznym. Od ponad 10 lat wspieramy firmy w budowie zespołów IT, AI, Cybersecurity, SAP oraz w rekrutacjach dla finansów, inżynierii i marketingu. Zrealizowaliśmy ponad 1000 skutecznych procesów rekrutacyjnych dla korporacji, scale-upów i dynamicznie rosnących startupów. Przesyłając swoje CV do Next Technology Professionals, trafiasz do starannie wyselekcjonowanej bazy kandydatów realizujących projekty dla wiodących globalnych organizacji. Pracujemy wyłącznie w oparciu o aktualne, konkretne potrzeby klientów. Jeśli Twój profil będzie odpowiadał jednemu z prowadzonych procesów, skontaktujemy się niezwłocznie.

🏢 Summary: Remote Full Stack .NET Developer role focused on building and maintaining enterprise-grade applications using Angular 20+ and ASP.NET Core (.NET 9+) within a Microsoft and Azure ecosystem. The position involves designing scalable solutions, integrating authentication and external systems, and deploying cloud-native applications using Docker, Kubernetes, and CI/CD pipelines. Long-term B2B project for EU citizens residing in Poland. 🗂️ Requirements: Strong commercial experience as Full Stack .NET Developer, Hands-on experience with Angular 20+, Very good knowledge of ASP.NET Core and modern .NET, Experience designing and developing RESTful APIs, Experience with Microsoft Azure services, Strong knowledge of Microsoft SQL Server, Experience with Entity Framework Core, Experience with Docker and containerized environments, Understanding of Kubernetes, Experience building and maintaining CI/CD pipelines, Strong SQL skills, Knowledge of authentication and authorization mechanisms including Azure AD, Experience in Agile environments, Very good English skills, EU citizenship, Residence in Poland 📃 Skills: Angular, ASP.NET, NET, C#, REST, Azure, MSAL, AzureAD, SQL, SQLServer, EntityFramework, Docker, Kubernetes, CI/CD, Vitest, xUnit, Moq, AzureDevOps 🏢 Description: In Cyclad, we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are currently looking for an experienced Full Stack .NET Developer to join a remote international team delivering enterprise-grade applications using modern Microsoft and Angular technologies. In this role, you will be responsible for designing, developing, and maintaining scalable applications while collaborating closely with cross-functional teams in an agile environment. Project information: Type of project: It services Office Location: Poland Work mode: Remote from Poland Budget: 120-140 PLN net/ h- B2B Project length: Long term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Design and develop enterprise applications using Angular 20+ on the front end and ASP.NET Core (.NET 9+) on the back end Implement standalone components and signals-based architecture to build responsive and maintainable user interfaces Integrate Azure MSAL authentication, RESTful APIs, and external systems Build and optimize data access layers using Entity Framework Core and manage relational data in Microsoft SQL Server Ensure application security through authentication, authorization, and data protection mechanisms based on Azure Active Directory Deploy and manage application environments using Docker, Kubernetes, and CI/CD pipelines Develop and maintain comprehensive unit and integration tests for both front-end and back-end components using Vitest, xUnit, and Moq Collaborate with cross-functional teams to maintain shared libraries and continuously improve product functionality based on user feedback Troubleshoot, debug, and optimize applications to ensure scalability, reliability, and high performance Participate actively in code reviews by reviewing and approving Pull Requests from team members Document project progress, architectural decisions, and implementation outcomes using Azure DevOps Boards and Wiki Contribute to continuous improvement initiatives and promote development best practices across the team Competence demands: Strong commercial experience as a Full Stack .NET Developer Proven hands-on experience with Angular and .NET technologies Very good knowledge of ASP.NET Core and modern .NET development practices Experience designing and developing RESTful APIs Practical experience with Microsoft Azure services and cloud-native applications Strong knowledge of Microsoft SQL Server and relational database design Experience with Entity Framework Core Experience working with Docker and containerized environments Good understanding of Kubernetes and container orchestration Experience building and maintaining CI/CD pipelines Strong SQL skills and experience optimizing database queries Understanding of authentication and authorization mechanisms, including Azure AD integrations Experience working in Agile development environments Strong communication and collaboration skills Proactive approach, ownership mindset, and ability to independently lead feature implementations High attention to detail and commitment to code quality Very good English skills, both written and spoken We offer: Remote working model from Poland Full-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person ) Life insurance Recruitment process: Introductory call Technical interview Final decision

🏢 Summary: Senior FullStack Developer role focused on building and scaling high-performance web applications using NestJS and NextJS. The position involves leading architecture decisions, ensuring code quality, and optimizing performance across backend and frontend systems. You will drive scalable, secure solutions and maintain reliable CI/CD and production environments. 🗂️ Requirements: 5+ years of fullstack development experience, Strong experience with NestJS, Node.js, NextJS, TypeScript, Strong knowledge of PostgreSQL and data modeling, Experience building and consuming REST APIs, Experience implementing JWT-based authentication, Ability to design scalable and secure architectures, Experience with CI/CD pipelines and Docker, Experience optimizing frontend performance (SSR, lazy loading, state management), Ability to enforce code quality and conduct code reviews 📃 Skills: NestJS, Node.js, NextJS, TypeScript, PostgreSQL, REST, JWT, Docker, CI/CD, Kubernetes, ArgoCD, Kafka, RabbitMQ, AWS, SNS, SQS, Terraform, Sentry, Datadog, Groundcover, Storybook, React 🏢 Description: 1. Job Purpose We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for a talented Senior FullStack Developer to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications. 2. Key Responsibilities Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads. 3. Required Skills & Qualifications Experience: 5+ years of fullstack development experience; NestJS , Node.js , NextJS , and TypeScript Strong understanding of PostgreSQL , data modeling, and optimization techniques Solid experience building and consuming REST with secure JWT-based auth flows Proven ability to lead architecture decisions, enforce code quality, and guide teams through technical complexity Familiarity with CI/CD pipelines , Docker , and environment management (bonus: K8s, ArgoCD) Experience with frontend performance optimization (SSR, lazy loading, state management) Comfortable working in cross-functional squads with product, QA, and design Good communication skills Nice to Have: Experience with component libraries (e.g., Storybook, React UI) or design systems Exposure to event-driven systems using tools like Kafka, RabbitMQ, or AWS SNS/SQS Knowledge of Infrastructure as Code (Terraform) Background in observability tooling (e.g., Sentry, Datadog, Groundcover) and defining alerting/logging standards Contributions to internal platforms, shared packages , or developer experience tools Soft Skills Clear written and async communication, especially in distributed teams Systemic thinking — sees the bigger picture across stack, squads, and product Ownership mindset, from design to delivery to incident resolution Pragmatic decision-making, balancing trade-offs in real-world scenarios 4. Key Performance Indicators (KPIs) End-to-end feature delivery reliability Architecture quality and system scalability Code review throughput and mentorship impact Production stability and issue resolution time Documentation, testing, and developer experience 5. What We Offer Competitive compensation 22 paid vacation days + local national holidays Annual learning & development budget Opportunity to impact a fast-growing multi-product company Cross-functional projects, modern stack, and zero legacy burden

🏢 Summary: Senior FullStack Developer role focused on building and scaling high-performance SaaS web applications using NestJS and NextJS. The position involves leading architecture decisions, ensuring code quality, and optimizing system performance across backend and frontend. The role also drives CI/CD reliability, observability standards, and cross-functional technical alignment. 🗂️ Requirements: 5+ years fullstack development experience, Strong experience with NestJS, Node.js, NextJS, TypeScript, Strong knowledge of PostgreSQL and data modeling, Experience building and consuming REST APIs, Implementation of JWT-based authentication, Experience with CI/CD pipelines, Experience with Docker and environment management, Frontend performance optimization (SSR, lazy loading, state management), Ability to lead architecture decisions and enforce code quality 📃 Skills: NestJS, Node.js, NextJS, TypeScript, PostgreSQL, REST, JWT, CI/CD, Docker, Kubernetes, ArgoCD, Kafka, RabbitMQ, AWS, Terraform, Sentry, Datadog, Groundcover, Storybook, React 🏢 Description: 1. Job Purpose We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for a talented Senior FullStack Developer to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications. 2. Key Responsibilities Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads. 3. Required Skills & Qualifications Experience: 5+ years of fullstack development experience; NestJS , Node.js , NextJS , and TypeScript Strong understanding of PostgreSQL , data modeling, and optimization techniques Solid experience building and consuming REST with secure JWT-based auth flows Proven ability to lead architecture decisions, enforce code quality, and guide teams through technical complexity Familiarity with CI/CD pipelines , Docker , and environment management (bonus: K8s, ArgoCD) Experience with frontend performance optimization (SSR, lazy loading, state management) Comfortable working in cross-functional squads with product, QA, and design Good communication skills Nice to Have: Experience with component libraries (e.g., Storybook, React UI) or design systems Exposure to event-driven systems using tools like Kafka, RabbitMQ, or AWS SNS/SQS Knowledge of Infrastructure as Code (Terraform) Background in observability tooling (e.g., Sentry, Datadog, Groundcover) and defining alerting/logging standards Contributions to internal platforms, shared packages , or developer experience tools Soft Skills Clear written and async communication, especially in distributed teams Systemic thinking — sees the bigger picture across stack, squads, and product Ownership mindset, from design to delivery to incident resolution Pragmatic decision-making, balancing trade-offs in real-world scenarios 4. Key Performance Indicators (KPIs) End-to-end feature delivery reliability Architecture quality and system scalability Code review throughput and mentorship impact Production stability and issue resolution time Documentation, testing, and developer experience 5. What We Offer Competitive compensation 22 paid vacation days + local national holidays Annual learning & development budget Opportunity to impact a fast-growing multi-product company Cross-functional projects, modern stack, and zero legacy burden

🏢 Summary: Senior FullStack Developer role in a fast-growing SaaS environment, responsible for designing and delivering scalable, high-performance web applications using NestJS and NextJS. The position involves leading architectural decisions, ensuring code quality, optimizing system performance, and mentoring engineers across cross-functional squads. You will drive backend and frontend development, CI/CD reliability, and production stability in a modern, zero-legacy stack. 🗂️ Requirements: 5+ years of fullstack development experience, Strong experience with NestJS, Node.js, NextJS, and TypeScript, Strong knowledge of PostgreSQL, data modeling, and optimization, Experience building and consuming REST APIs with JWT authentication, Ability to lead architecture decisions and enforce code quality, Experience with CI/CD pipelines and Docker, Frontend performance optimization experience (SSR, lazy loading, state management), Ability to collaborate in cross-functional teams (product, QA, design) 📃 Skills: NestJS, Node.js, NextJS, TypeScript, PostgreSQL, REST, JWT, CI/CD, Docker, Kubernetes, ArgoCD, Storybook, React, Kafka, RabbitMQ, AWS, Terraform, Sentry, Datadog, Groundcover 🏢 Description: 1. Job Purpose We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for a talented Senior FullStack Developer to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications. 2. Key Responsibilities Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads. 3. Required Skills & Qualifications Experience: 5+ years of fullstack development experience; NestJS , Node.js , NextJS , and TypeScript Strong understanding of PostgreSQL , data modeling, and optimization techniques Solid experience building and consuming REST with secure JWT-based auth flows Proven ability to lead architecture decisions, enforce code quality, and guide teams through technical complexity Familiarity with CI/CD pipelines , Docker , and environment management (bonus: K8s, ArgoCD) Experience with frontend performance optimization (SSR, lazy loading, state management) Comfortable working in cross-functional squads with product, QA, and design Good communication skills Nice to Have: Experience with component libraries (e.g., Storybook, React UI) or design systems Exposure to event-driven systems using tools like Kafka, RabbitMQ, or AWS SNS/SQS Knowledge of Infrastructure as Code (Terraform) Background in observability tooling (e.g., Sentry, Datadog, Groundcover) and defining alerting/logging standards Contributions to internal platforms, shared packages , or developer experience tools Soft Skills Clear written and async communication, especially in distributed teams Systemic thinking — sees the bigger picture across stack, squads, and product Ownership mindset, from design to delivery to incident resolution Pragmatic decision-making, balancing trade-offs in real-world scenarios 4. Key Performance Indicators (KPIs) End-to-end feature delivery reliability Architecture quality and system scalability Code review throughput and mentorship impact Production stability and issue resolution time Documentation, testing, and developer experience 5. What We Offer Competitive compensation 22 paid vacation days + local national holidays Annual learning & development budget Opportunity to impact a fast-growing multi-product company Cross-functional projects, modern stack, and zero legacy burden

🏢 Summary: Fullstack .NET Developer (Blazor) role focused on building and maintaining a large-scale e-commerce web application with a Blazor-based frontend tightly integrated with a .NET backend. The position involves mostly backend development while requiring strong hands-on experience with Blazor for independent UI component creation. Responsibilities include developing backend services and APIs, maintaining code quality, and collaborating within a Scrum team. 🗂️ Requirements: Minimum 3 years commercial experience as Fullstack .NET Developer, Experience with .NET Core 6+, Experience with ASP.NET, Experience with Entity Framework Core 6+, Strong knowledge of C# (9+), Experience with Blazor, Knowledge of relational databases, Strong SQL skills, Basic knowledge of NoSQL databases, Understanding of SOLID principles, Experience working in Scrum, English level B2 📃 Skills: C#, .NET, ASP.NET, Blazor, EntityFramework, SQL, NoSQL, PostgreSQL, MongoDB, GraphQL, Redis, GitHubActions, Scrum, SOLID 🏢 Description: Wspólnie z naszym Klientem, największa platforma e-commerce , w Polsce poszukujemy osoby na stanowisko Fullstack .Net Developer (Blazor). Projekt opiera się na budowie aplikacji webowej, w której Blazor pełni rolę głównego frameworka frontendowego, ściśle zintegrowanego z rozbudowanym backendem .NET. Zespół pracuje w modelu full-stack z przewagą zadań backendowych, jednak od każdego członka oczekuje się solidnej, ponadpodstawowej znajomości Blazora, umożliwiającej samodzielne tworzenie i modyfikację komponentów UI. 💡 TWOJA ROLA: Projektowanie, tworzenie, testowanie i utrzymywanie wysokiej jakości kodu dla platformy technologicznej, w tym usług backendowych, API i skryptów automatyzujących. Współpraca z Product Managerami, projektantami UX i innymi inżynierami w celu zbierania i doprecyzowywania wymagań. Uczestnictwo w procesach code review oraz aktywne dzielenie się wiedzą z zespołem. Ciągłe doskonalenie procesów i metodologii wytwarzania oprogramowania w zespole. Debugowanie i rozwiązywanie defektów oraz problemów z oprogramowaniem. 🔍 CZEGO OCZEKUJEMY OD CIEBIE? Minimum 3 lata komercyjnego doświadczenia na stanowisku Fullstack .NET Developer , w tym doświadczenie w pracy z .NET Core 6+, ASP.NET , Entity Framework Core 6+. Dobra znajomość relacyjnych baz danych, języka zapytań baz danych SQL oraz podstawowa znajomość baz danych noSQL . Znajomość i zrozumienie zasad programowania obiektowego SOLID oraz doświadczenie w pracy w zespole scrumowym . Otwartość na pracę zdalną z gotowością do wizyt w biurze 1-2 razy w miesiącu (Warszawa lub Poznań). Znajomość frameworka Blazor wykorzystywanego po stronie frontendu. Bardzo dobra znajomość języka C# (wersja 9+). Język angielski - B2. Mile widziane: Znajomość: PostgreSQL, MongoDB , języka zapytań GraphQL, Github Actions, bazy danych w pamięci Redis. ✨ OFERUJEMY: Uczestnictwo w spotkaniach integracyjnych oraz meetupach technologicznych, umożliwiających dzielenie się wiedzą i doświadczeniem. Wsparcie dedykowanej osoby kontaktowej z Connectis, dostępnej w celu pomocy w sprawach związanych z projektem. Otwartość na pracę zdalną z gotowością do wizyt w biurze 1-2 razy w miesiącu (Warszawa lub Poznań). Rozwój kariery i długofalową współpracę w firmie o ugruntowanej pozycji na rynku. 5000 PLN za polecenie znajomych do naszych projektów. Dostęp do najnowszych technologii i narzędzi pracy. Szybki i zdalny proces. Dziękujemy za wszystkie zgłoszenia. Pragniemy poinformować, że skontaktujemy się z wybranymi osobami. 12761/KD

🏢 Summary: Fullstack Developer role focused on designing, developing, and maintaining web applications using Angular and .NET within an NX monorepo architecture. The position involves building RESTful APIs, microservices, and responsive front-end interfaces while ensuring high code quality, performance, and security. The role also includes working with relational databases, automated testing, and CI/CD pipelines in Azure DevOps. 🗂️ Requirements: Minimum 5 years of full-stack development experience with Angular and .NET, Strong proficiency in C# and .NET Core/Framework, Experience with Entity Framework and LINQ, Solid experience with Angular (v12+) and TypeScript, Strong knowledge of RxJS, Hands-on experience with NX monorepo, Experience writing unit and integration tests with Jest, Experience with DevExtreme, Proficiency with Visual Studio, Hands-on experience with Git, Experience with Azure DevOps Services, Experience with SQL Server and query optimization, Knowledge of REST API design and HTTP standards, Understanding of software design patterns and SOLID principles, Bachelor's degree in Computer Science, Engineering, or equivalent experience 📃 Skills: Angular, TypeScript, RxJS, NgRx, .NET, C#, EntityFramework, LINQ, NX, Jest, DevExtreme, VisualStudio, Git, AzureDevOps, SQLServer, PostgreSQL, REST, HTTP 🏢 Description: We’re looking for Fullstack developer The primary objective of this role is to design, develop, and maintain full-stack web applications using Angular and .NET technologies while adhering to modern architectural best practices. Main Responsibilities: Design, develop, and maintain full-stack web applications using Angular and .NET in an NX monorepo architecture. Develop RESTful APIs and microservices using .NET Core/Framework, following Clean Architecture principles. Build responsive, user-friendly interfaces with Angular, incorporating modern patterns like RxJS and NgRx. Work with relational databases like SQL Server and PostgreSQL, designing efficient data models. Write comprehensive unit and integration tests using Jest for maintaining high code quality. Manage version control with Git and oversee CI/CD pipelines in Azure DevOps Services. Participate in code reviews to improve code quality and team practices. Collaborate with product managers, UX designers, and other developers to deliver solutions on time. Contribute to optimizing application performance and ensuring security best practices. Key Requirements: Minimum 5 years of experience in full-stack development with Angular and .NET. Strong proficiency in C#, .NET Core/Framework, Entity Framework, and LINQ. Solid experience with Angular (v12+), TypeScript, and RxJS. Hands-on experience with NX monorepo structure. Proficiency with Jest for writing unit and integration tests. Experience with the DevExtreme component library. Proficiency with Visual Studio for .NET development. Hands-on experience with Git and Azure DevOps Services. Experience with SQL Server and optimized queries. Knowledge of REST API design and HTTP standards. Understanding of software design patterns and SOLID principles. Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience). Nice to Have: Experience in agile methodologies. Familiarity with cloud services like Azure or AWS. Exposure to frontend testing frameworks like Jasmine.