Senior .NET Developer with AWS and React (f/m/x)

🏢 Summary: Senior .NET Developer role focused on building and enhancing a custom industrial application supporting end-to-end production and logistics processes. The position involves backend development in .NET, frontend development with Angular, and designing microservices-based solutions deployed in AWS. The project emphasizes scalability, traceability, and continuous product improvement. 🗂️ Requirements: Minimum 5 years of commercial experience as a .NET Developer, Strong hands-on experience with .NET in backend development, Practical experience with Angular in frontend development, Experience with microservices-based architecture, Experience with AWS cloud services 📃 Skills: .NET, Angular, AWS, Microservices 🏢 Description: We are looking for a Senior .NET Developer to join a long‑term product development project in the industrial and manufacturing domain. The role focuses on building and maintaining a custom‑built application that supports end‑to‑end production and logistics processes for industrial clients. The project uses modern technologies and follows an innovation‑driven approach, with strong emphasis on process traceability, scalability, and continuous improvement. Your tasks Develop and maintain backend solutions using .NET for a custom industrial application Implement new product functionalities according to business and process requirements Build and extend frontend features using Angular Design and develop solutions based on a microservices architecture Develop, deploy, and maintain solutions in an AWS cloud environment Requirements Minimum 5 years of commercial experience as a .NET Developer Strong hands‑on experience with .NET in backend development Practical experience with Angular in frontend development Experience working with microservices‑based architectures Experience working with AWS cloud services Fluency in English Residing in Poland required

🏢 Summary: Senior .NET Developer role focused on building and maintaining extended functionalities within a distributed, cloud-based system. The position involves working with modern .NET technologies, Angular, cloud platforms, and microservices architecture in an Agile/Scrum environment. The role requires close collaboration with stakeholders while applying clean code and best development practices. 🗂️ Requirements: Bachelor’s degree or Microsoft .NET certification, Strong experience with .NET and C#, Experience with ASP.NET Core and Web API, Experience with Angular (2+), Experience with Azure or AWS, Experience with microservices and distributed systems, Experience with PostgreSQL and SQL Server, Experience with database migrations, Experience with GitHub, Knowledge of SOLID and DRY principles, Fluent English (written and spoken) 📃 Skills: .NET, C#, ASP.NET, Angular, Azure, AWS, Microservices, Kafka, PostgreSQL, SQL, GitHub, WebAPI 🏢 Description: We are looking for a Senior .Net Developer . Responsibility: Develop and maintain extended functionalities Collaborate closely with internal and external consultants, as well as key business stakeholders Work with technologies including Angular (2+), Azure/AWS Cloud, and the .NET stack (.NET 8/9, ASP.NET Core, C#, Web API), along with microservices and distributed systems, Kafka (or similar messaging tools), and databases such as PostgreSQL and SQL Server Actively participate in daily stand-ups, sprint reviews, and planning sessions with Danish colleagues, contributing to continuous improvement of the Scrum process To succeed in this role, you: Hold a relevant bachelor’s degree or a Microsoft certification related to .NET Apply clean code principles and best practices such as SOLID and DRY, with a strong object-oriented mindset Have proven experience in Microsoft .NET (C#), GitHub, PostgreSQL, and database migrations Communicate fluently in English, both written and spoken

🏢 Summary: Senior full-stack .NET Developer role focused on building scalable applications using .NET, Angular, and Microsoft Azure. The position involves designing cloud-based solutions, contributing to architecture decisions, and ensuring high code quality with modern engineering practices. Work includes CI/CD implementation and collaboration within Agile teams. 🗂️ Requirements: 4+ years commercial experience with .NET (C#, .NET/.NET Core, Entity Framework or other ORM, WCF), 3+ years experience with Angular (or React with recent Angular), 2+ years experience with Microsoft Azure services, Experience with REST or SOAP web services and APIs, Knowledge of software architecture and design patterns, Experience with Unit Testing and Clean Code principles, Strong SQL knowledge, Experience with Git and CI/CD pipelines, Experience with automated deployments, Fluent English 📃 Skills: C#, .NET, .NETCore, Angular, Azure, EntityFramework, WCF, SQL, REST, SOAP, Git, CI/CD, AzureFunctions, AzureLogicApps, AzureWebApps, AzureSQL, SQLServer 🏢 Description: Role Overview We are looking for a Senior .NET Developer with strong experience in Angular and Microsoft Azure to join our development team. In this role, you will work in a full-stack capacity, building scalable applications and cloud-based solutions while applying modern software engineering practices. You will collaborate with cross-functional teams, contribute to architecture decisions, and ensure high standards of code quality, testing, and continuous delivery. Key Responsibilities Design, develop, and maintain full-stack applications using .NET technologies and Angular . Apply object-oriented and functional programming principles to solve complex software engineering challenges. Write clean, maintainable, and well-tested code following recognized software design patterns and best practices. Develop and deploy solutions using Microsoft Azure services . Work in Agile development environments , contributing to sprint planning, reviews, and continuous improvement. Implement and support CI/CD pipelines to enable efficient and reliable software delivery. Collaborate with architects, developers, and stakeholders to design scalable and high-quality solutions. Skills & Attributes for Success Strong ability to write clean, readable, and maintainable code aligned with established coding standards. Solid understanding of software design patterns and architecture principles . Passion for continuous learning and exploring new technologies, particularly within the Azure ecosystem . Strong analytical and problem-solving skills. Ability to work effectively in a collaborative Agile environment. Required Qualifications 4+ years of commercial experience with .NET technologies (C#, .NET / .NET Core, Entity Framework or other ORM, WCF). 3+ years of experience with Angular (React experience combined with recent Angular experience is also acceptable). 2+ years of experience with Microsoft Azure services , such as: Azure Functions Azure Logic Apps Azure Web Apps Azure SQL / SQL Server Experience working with web services and APIs (REST / SOAP). Good knowledge of software architecture and design patterns . Experience with Clean Code principles and Unit Testing . Solid knowledge of SQL . Experience with Git , CI/CD pipelines , and automated deployment processes. Fluent English (spoken and written).

🏢 Summary: The offer is for a Senior .NET Developer responsible for improving and refactoring core backend systems to enhance structure, maintainability, and security. The role focuses on reducing technical debt, enabling automation and AI integration, and ensuring high code quality through testing and CI/CD practices. The position involves hands-on development within legacy or monolithic environments and driving system modernization. 🗂️ Requirements: 5+ years experience in .NET / C# backend development, Experience with legacy or monolithic systems, Strong knowledge of clean code principles, Proven experience in refactoring existing codebases, Strong SQL and backend integration experience, Experience with APIs and service-based architecture, Experience with CI/CD pipelines, Experience with automated testing, Familiarity with TDD or BDD practices, Experience with Gherkin, SpecFlow, Cucumber or similar, Experience using AI tools in development workflows, Understanding of code structuring for automation and AI integration 📃 Skills: .NET, C#, SQL, APIs, CI/CD, TDD, BDD, Gherkin, SpecFlow, Cucumber, AI, Git, Docker, .NETCore 🏢 Description: Introduction & Summary: We are seeking a Senior .NET Developer with 5-8+ years of experience in backend development and .NET engineering. The successful candidate will drive improvement in code quality, reduce technical debt, and support system structuring for better predictability. With a focus on future automation and AI capabilities, you will help ensure code understandability, maintainability, and security. Main Responsibilities: Responsible for hands-on development and refactoring of core systems, with the aim of enhancing their structure and predictability. Develop and improve .NET-based systems. Reduce technical debt and increase maintainability. Support safe and efficient delivery. Ensure code is understandable, maintainable, and secure. Make systems testable and observable. Facilitate automation of workflows. Key Requirements: Strong experience with .NET / C#. Experience working with legacy or monolithic systems. Strong understanding of clean code principles. Experience with refactoring and improving existing codebases. Strong SQL and backend integration experience. Experience with APIs and service-based architecture. Experience with CI/CD pipelines. Experience with automated testing. Familiarity with TDD / BDD and security by design thinking. Experience with Gherkin / SpecFlow / Cucumber or similar. AI-related: Experience using AI tools in development workflows. Understanding of code structuring for automation and AI integration. Experience using AI for debugging, testing, or documentation support. Nice to Have: Experience with .NET Core. Experience with containerization. Exposure to AI-assisted testing or development tools. Experience improving system observability.

🏢 Summary: 6-miesięczny kontrakt z możliwością przedłużenia dla Senior .NET Developera odpowiedzialnego za projektowanie, rozwój i utrzymanie skalowalnych aplikacji backendowych oraz API. Rola obejmuje współpracę z zespołami projektowymi, projektowanie architektury, optymalizację rozwiązań, utrzymanie systemów produkcyjnych i wsparcie mniej doświadczonych osób. 🗂️ Requirements: Minimum 6 lat komercyjnego doświadczenia w C#/.NET, Bardzo dobra znajomość .NET Core / .NET 6+, Doświadczenie w projektowaniu i rozwoju aplikacji backendowych oraz REST API, Znajomość wzorców projektowych i zasad SOLID, Doświadczenie w pracy z bazami danych SQL, Znajomość Git i praktyk CI/CD, Doświadczenie w Agile, Scrum lub Kanban, Bardzo dobra znajomość języka angielskiego 📃 Skills: C#, .NET, SQL, REST, Git, CI/CD, Agile, Scrum, Kanban, SOLID 🏢 Description: Poszukujemy doświadczonego Senior .NET Developera (C#) do realizacji projektu dla klienta. Jest to kontrakt na 6 miesięcy z możliwością przedłużenia współpracy. Zakres obowiązków - Projektowanie, rozwój i utrzymanie aplikacji backendowych w technologii C#/.NET. - Tworzenie oraz rozwijanie wydajnych i skalowalnych usług oraz API. - Współpraca z zespołem projektowym przy analizie wymagań biznesowych i technicznych. - Dbanie o wysoką jakość kodu poprzez stosowanie dobrych praktyk programistycznych oraz udział w code review. - Identyfikowanie i rozwiązywanie problemów technicznych oraz optymalizacja istniejących rozwiązań. - Tworzenie i aktualizacja dokumentacji technicznej. - Udział w projektowaniu architektury aplikacji oraz proponowanie usprawnień technologicznych. - Współpraca z zespołami QA, DevOps oraz analitykami w celu sprawnej realizacji projektu. - Wsparcie mniej doświadczonych członków zespołu oraz dzielenie się wiedzą. - Aktywny udział w procesie wdrażania nowych funkcjonalności i utrzymania systemów produkcyjnych. Wymagania - Minimum 6 lat doświadczenia komercyjnego w programowaniu w C#/.NET. - Bardzo dobra znajomość platformy .NET (.NET Core / .NET 6+). - Doświadczenie w projektowaniu i rozwoju aplikacji backendowych oraz REST API. - Znajomość wzorców projektowych i zasad SOLID. - Doświadczenie w pracy z bazami danych SQL. - Znajomość Git oraz praktyk CI/CD. - Umiejętność pracy w metodykach Agile (Scrum/Kanban). - Bardzo dobra znajomość języka angielskiego umożliwiająca pracę w międzynarodowym środowisku.

🏢 Summary: The offer is for a Senior .NET Developer with 5+ years of experience to design, develop, and maintain scalable backend applications using modern .NET technologies. The role focuses on building high-quality APIs, contributing to architectural decisions, and ensuring application reliability in cloud-based environments. It involves close collaboration with cross-functional teams and strong engagement in testing, CI/CD, and production support. 🗂️ Requirements: Minimum 5 years of experience with .NET development, Strong experience with C# and .NET Core, Solid understanding of REST APIs, Experience with Entity Framework Core, Strong knowledge of SQL, Experience with cloud platforms (Azure or AWS), Experience with CI/CD pipelines, Experience with Git version control, Experience with unit and integration testing, Experience with message broker systems, Familiarity with agile development practices 📃 Skills: C#, .NET, .NETCore, REST, EntityFramework, SQL, Azure, AWS, CI/CD, Git, UnitTesting, IntegrationTesting, MessageBroker, Angular, Docker, Kubernetes, Microservices 🏢 Description: Summary: We’re looking for a highly skilled .NET Developer with a minimum of 5 years of experience. This role focuses on solving complex problems, building high-quality software, and contributing to a collaborative engineering culture. The candidate should be passionate about clean architecture, modern .NET development, and delivering impactful solutions. Responsibilities: Analyze, design, develop, and maintain applications using .NET / .NET Core. Build scalable backend services (APIs). Collaborate with cross-functional teams (Business, Dev, Infra, etc.). Participate in code reviews to elevate engineering standards. Contribute to architectural decisions and technical roadmaps. Provide business support and monitor applications (level 2 support, incident resolution, and troubleshooting). Key Requirements: Strong experience with C# and .NET Core. Solid understanding of REST APIs, Entity Framework Core, and SQL. Familiarity with cloud platforms (Azure or AWS). Experience with CI/CD pipelines and version control (Git). Strong testing culture: unit tests, integration tests, and production validation. Familiarity with agile development practices. A mindset focused on quality, performance, and maintainability. Experience with a message broker. Nice to Have: Knowledge of microservices architecture. Experience with front-end frameworks (Angular). Background in distributed systems or high-availability environments. Knowledge of Docker & Kubernetes. Experience with Azure functions. Other Details: This position allows for flexibility and may accommodate remote work arrangements. Candidates should be prepared for collaborative team engagements with a focus on delivering high-quality software solutions.

🏢 Summary: Remote Senior .NET Developer role focused on extending and scaling banking systems, integrating securities and banking operations, and supporting product control and risk management applications. The position requires full-stack .NET and Angular development, testing expertise, and experience with cloud-oriented system scaling. 🗂️ Requirements: 5+ years of .NET development experience, Angular proficiency, Full-stack development experience, Hands-on code testing experience, SOLID design principles, Document-based database experience, MongoDB familiarity, Unit and integration testing experience, Event-based messaging framework experience, Banking industry experience 📃 Skills: .NET, Angular, SOLID, MongoDB, Testing, Messaging, Banking 🏢 Description: Introduction & Summary We are seeking a highly skilled Senior .NET Developer with a strong background in developing and extending systems for the banking industry. The ideal candidate will possess at least 7 years of experience in .NET development along with proficiency in front-end technologies, particularly Angular. This is a 100% remote position requiring a proactive approach towards scaling applications and supporting cloud-based solutions. Main Responsibilities - Develop and extend systems to support additional entities. - Merge securities and banking operations seamlessly. - Provide support for 17 applications including product control and risk management. - Utilize in-house development frameworks. - Scale systems for cloud-based operations to onboard new entities. Key Requirements - 5+ years of experience in .NET development. - Proficiency in front-end technologies, specifically Angular. - Full-stack development experience with hands-on code testing. - Solid understanding of SOLID design principles. - Experience with document-based databases. - Familiarity with MongoDB. - Integrated experience with unit and integration testing. - Experience with event-based messaging frameworks. - Background in the banking industry. Nice to Have - Advanced cloud computing skills. - Experience with containerized solutions.

🏢 Summary: Senior full-stack role focused on building and maintaining scalable applications using .NET and React in Microsoft Azure. The position involves designing cloud-based solutions, contributing to architecture decisions, and ensuring high code quality, testing, and CI/CD practices within an Agile environment. 🗂️ Requirements: 4+ years commercial experience with .NET (C#, .NET/.NET Core, Entity Framework or other ORM, WCF), 3+ years experience with React (or Angular with recent React), 2+ years experience with Microsoft Azure services, Experience with REST or SOAP web services and APIs, Strong knowledge of software architecture and design patterns, Experience with Clean Code principles and Unit Testing, Solid knowledge of SQL, Experience with Git and CI/CD pipelines, Experience with automated deployments, Fluent English 📃 Skills: C#, .NET, .NETCore, EntityFramework, WCF, React, Angular, Azure, AzureFunctions, AzureLogicApps, AzureWebApps, AzureSQL, SQLServer, REST, SOAP, SQL, Git, CI/CD, UnitTesting 🏢 Description: Role Overview We are looking for a Senior .NET Developer with strong experience in React and Microsoft Azure to join our team. In this role, you will work on designing and developing modern full-stack applications, applying best engineering practices and delivering scalable solutions in a cloud environment. You will collaborate closely with cross-functional teams, contribute to architecture decisions, and ensure high standards of code quality, testing, and continuous delivery. Key Responsibilities Design, develop, and maintain full-stack applications using .NET technologies and React . Apply object-oriented and functional programming principles to solve real-world engineering challenges. Write clean, maintainable, and well-tested code following established software design patterns and best practices. Develop and deploy solutions in Microsoft Azure cloud environments . Participate in Agile software development processes , including sprint planning, reviews, and retrospectives. Implement and maintain CI/CD pipelines to enable efficient and reliable software delivery. Collaborate with architects, developers, and stakeholders to design scalable and high-quality solutions. Skills & Attributes for Success Strong ability to write clean, readable, and maintainable code aligned with established design patterns and coding standards. Passion for continuous learning and exploring new technologies, especially within the Azure ecosystem . Strong analytical and problem-solving skills. Ability to work effectively in a collaborative and Agile team environment. Required Qualifications 4+ years of commercial experience with .NET technologies (C#, .NET / .NET Core, Entity Framework or other ORM, WCF). 3+ years of experience with React (Angular experience combined with recent React experience is also acceptable). 2+ years of experience with Microsoft Azure services , such as: Azure Functions Azure Logic Apps Azure Web Apps Azure SQL / SQL Server Experience working with web services and APIs (REST / SOAP). Strong knowledge of software architecture and design patterns . Experience with Clean Code principles and Unit Testing . Solid knowledge of SQL . Experience with source code management (Git) and CI/CD pipelines , including automated deployment. Fluent English (both written and spoken).

🏢 Summary: Senior .NET Developer role focused on building and enhancing scalable, cloud-native enterprise solutions using .NET 6+ and Microsoft Azure. The position involves designing modern APIs, contributing to microservices architecture, and ensuring high availability, security, and reliability in production systems. The role is hybrid in Krakow and emphasizes DevOps, automation, and engineering best practices. 🗂️ Requirements: 7+ years professional software development experience, Strong hands-on experience with C#, Strong experience with .NET Core / .NET 6+, Proven experience building modern APIs and enterprise applications, Strong experience with Microsoft Azure services (AKS, Azure Containers, Azure Web Apps, Azure Functions, Azure Service Bus, Azure Storage Accounts, Azure Key Vault), Strong experience with Containers and Kubernetes, Solid understanding of Microservices architecture, Strong knowledge of Object-Oriented Programming and SOLID principles, Understanding of Multi-threading and concurrent programming, Experience with Cloud Architecture and Engineering on Azure, Experience working in Agile environments, Experience with TDD and DevOps practices, Strong analytical and troubleshooting skills, Excellent verbal and written communication skills 📃 Skills: C#, .NET, ASP.NET, Azure, AKS, Kubernetes, Docker, Microservices, REST, API, CI/CD, DevOps, TDD, OOP, SOLID, Multithreading, AzureFunctions, AzureServiceBus, AzureStorage, AzureKeyVault, EventGrid, ContainerApps 🏢 Description: Location: Krakow, hybrid 3 days/week About the Role We are looking for an experienced and passionate Senior .NET Developer with strong Azure expertise to join our engineering team. In this role, you will design, develop, and enhance scalable digital products and technology services used by clients and internal teams worldwide. You will work in a modern cloud-native environment, contribute to high-impact projects, and collaborate with cross-functional teams to build secure, reliable, and highly available enterprise solutions. Key Responsibilities Design, develop, and improve enterprise-grade digital products and technology services Analyze business and user requirements to deliver scalable and efficient technical solutions Develop modern APIs and backend services using .NET 6+ and Azure cloud technologies Apply software engineering best practices including automated testing, CI/CD, and DevOps methodologies Ensure quality, security, reliability, and compliance across all delivered solutions Build observability into applications, monitor production systems, troubleshoot incidents, and resolve root causes Contribute to cloud-native and microservices-based architecture initiatives Collaborate closely with product owners, architects, and engineering teams to deliver business value Advocate for client and user needs while driving technical excellence Share knowledge with peers, mentor team members, and contribute to engineering culture and hiring activities Required Skills & Experience 7+ years of professional software development experience Strong hands-on experience with C# and .NET Core / .NET 6+ Proven experience building modern APIs and enterprise applications using .NET technologies Strong experience with Microsoft Azure services including: AKS (Azure Kubernetes Service) Azure Containers Azure Web Apps Azure Functions Azure Service Bus Azure Storage Accounts Azure Key Vault Strong experience with Containers and Kubernetes Solid understanding of Microservices and Event-Driven Architecture Strong knowledge of Object-Oriented Programming, Design Patterns, and SOLID principles Good understanding of Multi-threading and concurrent programming Experience with Cloud Architecture and Engineering on Azure platforms Experience with: Azure App Services Container Apps Event Grid Experience working in Agile environments using TDD and DevOps practices Passion for Software Craftsmanship, Clean Code, and engineering best practices Strong analytical, troubleshooting, and problem-solving skills Excellent verbal and written communication skills Nice to Have Experience implementing: Service-Oriented / Microservice Architectures Event-Based Architectures Loosely Coupled Systems Reusable Enterprise Components Experience working with distributed systems and high-scale applications Exposure to observability and monitoring tools

🏢 Summary: Long-term remote role for a Senior .NET Developer with AI expertise to design and deliver AI-driven solutions within the Microsoft ecosystem. The position focuses on building and deploying AI agents in Microsoft Teams and integrating solutions with Azure AI and OpenAI services. The role covers end-to-end development, deployment, and production support of scalable intelligent systems. 🗂️ Requirements: Strong experience with C# and .NET, Proven experience building AI solutions in Microsoft ecosystem, Hands-on implementation of AI agents in Microsoft Teams, Experience with Azure AI, OpenAI, Cognitive Services, M365, Understanding of agent-based architecture and AI design patterns, Experience deploying and supporting production-grade solutions, Basic frontend experience with React or similar, Ability to work in English and Polish 📃 Skills: C#, .NET, Azure, OpenAI, CognitiveServices, M365, MicrosoftTeams, React, AI, AgentArchitecture 🏢 Description: We are looking for a Senior .NET Developer with AI experience to design and deliver cutting-edge solutions within the Microsoft ecosystem. This role is ideal for someone who combines strong backend engineering in C#/.NET with hands-on AI expertise , particularly in building and deploying AI agents Location: Remote Language: Polish and English Key Responsibilities Design and develop scalable AI-driven solutions using C# / .NET Build and deploy AI agents within Microsoft Teams (end-to-end ownership) Develop and implement agent-based architectures and intelligent systems Integrate solutions with Azure AI, OpenAI, and Microsoft services Deploy, monitor, and support solutions in production environments Collaborate with business and product teams to translate requirements into technical solutions Drive best practices in AI engineering, performance, and scalability Required Skills & Experience Strong experience as a .NET Developer (C#) – must-have Proven experience building AI solutions within Microsoft ecosystem Hands-on experience implementing AI agents in Microsoft Teams (critical requirement) Experience with Azure AI / OpenAI / Cognitive Services / M365 Understanding of agent-based architecture and AI design patterns Basic frontend experience ( React or similar ) Experience deploying and supporting production-grade solutions Strong problem-solving mindset and ability to work in fast-paced environments This is an long term project !!! If interested and available please send your CV for an immiediate consideration