.NET Developer

🏢 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: The offer is for a .NET Developer to join a backend team building and enhancing systems that support business operations, integrations, and data processing in an international environment. The role focuses on developing high-performance .NET applications, designing APIs, and collaborating within a mixed .NET and Java ecosystem. It includes work on integrations, CI/CD processes, and cooperation with distributed teams in a hybrid work model. 🗂️ Requirements: Minimum 3 years of professional experience in .NET development, Strong knowledge of C#, Experience with Java, Experience in backend development and API creation, Working knowledge of relational databases, Familiarity with Git, Experience working in Agile/Scrum teams, English proficiency at B2 level or higher 📃 Skills: .NET, C#, Java, REST, Git, SQL, MS SQL Server, SQLite, PostgreSQL, CI/CD 🏢 Description: 📍Contract of Employment 📍Gliwice - hybrid (50%) 📍17.000 - 21.000PLN gross monthly Position Overview We are seeking a .NET Developer to join a backend team responsible for building and enhancing systems that support business operations, integrations, and data processing in our client’s international environment. This role focuses mainly on .NET technologies while offering opportunities to collaborate within a broader ecosystem that also includes Java-based solutions. What You’ll Be Working On Developing, maintaining, and optimizing backend applications built on .NET to ensure high performance and reliability Designing and implementing APIs that meet business and technical expectations Analyzing requirements and delivering new features, improvements, and system enhancements Supporting and expanding existing solutions Creating and managing integrations with internal and external systems Troubleshooting issues, performing root-cause analysis, and ensuring long-term stability Cooperating with distributed teams across locations such as Poland and Germany Participating in code reviews and shaping coding standards and best practices Preparing and maintaining clear, structured technical documentation Supporting deployment processes and contributing to CI/CD pipelines What We Expect From You At least 3 years of professional experience in .NET development Strong command of C# Experience with Java and readiness to work in a combined .NET + Java ecosystem Experience in backend development and API creation Working knowledge of relational databases Familiarity with Git Experience in Agile/Scrum teams Strong communication skills and readiness to collaborate in an international setting English at B2 level or higher Technology Environment .NET (including .NET Framework, .NET Core, .NET 5+) C# REST APIs Git Databases such as MS SQL Server, SQLite, PostgreSQL CI/CD tools and pipelines Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361.

🏢 Summary: The offer is for a .NET Developer to design, develop, and maintain modern web applications and RESTful APIs using Microsoft technologies. The role focuses on ASP.NET Core development, API-first design, Optimizely CMS customization, and ensuring performance, security, and scalability. It also involves contributing to CI/CD processes and reusable component development. 🗂️ Requirements: Strong experience with C# and .NET, Hands-on experience with ASP.NET Core MVC, Experience with Web APIs, Experience designing and consuming REST APIs, Knowledge of OpenAPI/Swagger, Experience with NuGet package management, Experience with Optimizely CMS, Knowledge of JavaScript, Knowledge of TypeScript, Knowledge of HTML, Knowledge of CSS, Experience with Git 📃 Skills: C#, .NET, ASP.NET, MVC, WebAPI, REST, OpenAPI, Swagger, NuGet, Optimizely, Episerver, JavaScript, TypeScript, HTML, CSS, Git, Azure, Docker, React, Angular 🏢 Description: Summary: We are looking for a skilled .NET Developer to support our engineering team in the development and maintenance of modern web applications and APIs. This role is vital for enhancing digital experiences, leveraging Microsoft technologies, and ensuring optimal performance of our systems. Responsibilities: Design, develop, test, and maintain applications using .NET and ASP.NET Core. Develop and enhance RESTful APIs following API-first design principles. Create, maintain, and consume OpenAPI (Swagger) specifications. Build web applications utilizing ASP.NET Core MVC and Web API frameworks. Customize solutions using Optimizely (Episerver) CMS and Commerce platforms. Implement content models and components within Optimizely. Design reusable libraries and manage package publishing through NuGet. Collaborate with architects, product owners, and UX designers to provide quality solutions. Participate in code reviews, testing, and performance optimization. Contribute to CI/CD pipelines and deployment automation. Ensure security, scalability, and reliability in applications. Must Haves: Strong experience with C# and .NET development. Hands-on experience with ASP.NET Core MVC and Web APIs. Experience designing and consuming REST APIs. Strong knowledge of OpenAPI/Swagger specifications. Experience with NuGet package management. Experience with Optimizely (Episerver) CMS. Good knowledge of JavaScript, TypeScript, HTML, and CSS. Experience with Git. Nice to Haves: Experience with Optimizely Commerce and its features. Experience with Azure Cloud Services. Knowledge of Docker. Experience with automated testing frameworks. Understanding of microservices architecture. Familiarity with frontend frameworks like React or Angular.

🏢 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: Mid/Senior .NET Developer role focused on designing and developing modern web and enterprise backend systems in a microservices architecture. The position involves building and maintaining APIs, working with databases, implementing tests, and supporting CI/CD and containerized environments. Opportunity to contribute to system architecture, refactoring, and .NET migrations in an Agile setup. 🗂️ Requirements: Minimum 4 years experience with .NET (C#), Experience with .NET Core / .NET 8+ and ASP.NET, Experience with Entity Framework, Experience with MSSQL, MySQL, PostgreSQL or MongoDB, Ability to design and implement microservices, Experience building REST and/or GraphQL APIs, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with Git and Azure DevOps, Knowledge of Agile/Scrum, Ability to write unit and integration tests, English level B2/C1 📃 Skills: C#, .NET, .NETCore, .NET8, ASP.NET, EntityFramework, MSSQL, MySQL, PostgreSQL, MongoDB, REST, GraphQL, Docker, Kubernetes, CICD, Git, AzureDevOps, Jira, Agile, Scrum 🏢 Description: .NET Developer (mid/senior) – 4+ lata doświadczenia Opis stanowiska Do naszego zespołu poszukujemy doświadczonego .NET Developera , który będzie uczestniczyć w tworzeniu i rozwijaniu nowoczesnych aplikacji webowych i systemów enterprise. Jeśli masz pasję do pisania czystego, skalowalnego kodu, doświadczenie w pracy z mikroserwisami i chcesz wpływać na kierunek projektów – to stanowisko jest dla Ciebie. Zakres obowiązków Projektowanie, rozwój i utrzymanie aplikacji backendowych w .NET (C#). Tworzenie i konsumowanie RESTful i/lub GraphQL API. Budowa i utrzymanie mikroserwisów. Współpraca z zespołem frontendowym (React/Angular/Vue) w celu implementacji funkcjonalności full-stack. Udział w projektowaniu architektury systemów, refaktoryzacji oraz migracji do nowszych wersji .NET. Tworzenie i utrzymywanie testów jednostkowych, integracyjnych i e2e. Wsparcie procesów CI/CD i DevOps (Docker, Kubernetes, Azure/AWS). Dokumentowanie rozwiązań i współpraca w metodykach Agile/Scrum. Wymagania Minimum 4 lata doświadczenia w pracy z .NET (C#). Znajomość .NET Core / .NET 8+ , ASP.NET, Entity Framework. Doświadczenie z bazami danych : MSSQL, MySQL, PostgreSQL, MongoDB. Umiejętność projektowania i implementacji mikroserwisów . Znajomość REST i/lub GraphQL API . Doświadczenie w pracy z Dockerem, Kubernetes, CI/CD . Znajomość systemów kolejkowych (RabbitMQ, Kafka – mile widziane). Doświadczenie w pracy z frameworkami frontendowymi (React, Angular, Vue) – plus. Znajomość metodologii Agile/Scrum i narzędzi typu Jira, Git, Azure DevOps . Umiejętność pisania testów jednostkowych i integracyjnych. Dobra znajomość języka angielskiego (min. B2/C1). Mile widziane Doświadczenie w tworzeniu systemów rozproszonych i chmurowych . Znajomość DDD (Domain-Driven Design) . Umiejętność mentorowania młodszych programistów. Oferujemy Stabilne zatrudnienie w dynamicznie rozwijającej się firmie SaaS. B2B lub UoP, możliwość pracy w 100% zdalnej. Pracę w międzynarodowym zespole ekspertów. Możliwość rozwoju kompetencji w obszarze chmury, mikroserwisów i nowoczesnych technologii. Elastyczne godziny pracy i możliwość pracy zdalnej. Budżet szkoleniowy i wsparcie w certyfikacjach.

🏢 Summary: B2B remote role for a .NET Developer to design and maintain high-performance back-end services and scalable cloud solutions in AWS for industrial systems. The position focuses on API development, system integrations, and ensuring code quality through solid engineering and testing practices within a collaborative team. 🗂️ Requirements: Hands-on experience with AWS in production environments, Strong back-end engineering fundamentals, Experience with API design and integrations, Focus on performance and maintainability, Availability to work in PL/EU working hours 📃 Skills: .NET, C#, AWS, APIs 🏢 Description: For a client in the technology sector, developing industrial systems industry, we are looking for a position .Net Developer RESPONSIBILITIES Design, develop, and maintain high-performance back-end services using .NET (C#). Build scalable and resilient solutions using AWS services and databases. Collaborate with front-end developers and other engineers to integrate back-end services and APIs. Participate in code reviews, architectural discussions, and sprint planning. Contribute to keeping the codebase testable and reliable through solid unit/integration testing and good engineering practices. Work closely with the QA team to ensure quality and smooth releases (with less emphasis on personally owning E2E tests). Share knowledge and support less experienced team members as part of day-to-day collaboration. Stay up to date with relevant technologies and continuously improve the system. Tech Stack You’ll Be Working With •    Cloud: AWS •    Back-End: .NET (C#) •    Front-End (tooling/testing support): TypeScript (nice to have) REQUIREMENTS Hands-on experience with cloud environments in production (AWS preferred). Strong back-end engineering fundamentals: API design, integrations, performance, and maintainability. Ability to communicate clearly and work effectively in a collaborative team. Availability to work with a Poland-based team (PL/EU working hours). NICE TO HAVE Background in Electrical Engineering or a related technical field. Bachelor’s degree in Computer Science or a related field (or equivalent experience). Git and modern code review workflows. Experience working in an Agile environment. Familiarity with TypeScript/JavaScript. Familiarity with test tools like Playwright or Selenium. Engineering mentor mindset: enjoys sharing knowledge, coaching others, and reinforcing good habits through reviews, pairing, and pragmatic guidance. Understanding of QA methodologies and release processes. WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract. 100% remote work. The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Aleksandra Mazur Junior IT Delivery Consultant aleksandra.mazur@speedapp.pl +48 728 360 029

🏢 Summary: Hybrid Regular .NET Developer role focused on building and maintaining IT solutions for the financial sector, including Oracle-based systems and web applications. The position involves software development, system design, testing, documentation, and collaboration with business users and external vendors. Candidates should have strong experience with .NET technologies, SQL, web development, and enterprise-scale financial systems. 🗂️ Requirements: Very good knowledge of .NET framework, Ability to work with LLMs, Minimum 3 years of experience with C# and .NET, Experience with WCF, Experience with SQL and SSIS, Knowledge of ASP.NET MVC, Proficiency in JavaScript, Proficiency in jQuery, Proficiency in HTML5 and CSS3, Experience with Visual Studio Ultimate 2013, Knowledge of unit testing and test automation, Experience developing web applications, Understanding of OOP principles and design patterns, Experience designing IT systems for financial institutions or enterprise environments, Ability to analyze business and system requirements, English proficiency for technical documentation 📃 Skills: .NET, C#, WCF, SQL, SSIS, HTML, HTML5, ASP.NET, MVC, JavaScript, jQuery, CSS3, VisualStudio, OOP, LLM, Oracle, PLSQL, UML, ITIL, AGILE, XP 🏢 Description: .NET Developer (Regular) Financial Technology Sector | Hybrid Work (Łódź, Poland) Work Model: Hybrid (On-site 2 times a month in Łódź) Role Overview & Responsibilities We are seeking a skilled Regular .NET Developer to join our team and build high-quality IT solutions for the financial sector. In this role, you will be responsible for: Conducting design and implementation work in IT systems (including Oracle-based technologies). Collaborating with end/business users to gather and analyze data requirements for new solutions, specifically detailing general tasks and business concepts. Actively participating in internal software testing. Creating and updating technical and functional system documentation. Cooperating in the development of new solutions and defining technical directions. Implementing actions to improve data quality in systems and applications exporting data to the data warehouse. Supporting the review of technical specifications, as well as project, technical, and administrative documentation prepared by third-party vendors. Key Requirements Absolute Must-Haves: Very good knowledge of the .NET framework. Ability to work with Large Language Models (LLMs) . Strong teamwork skills combined with high independence. Experience & Technical Skills: Minimum 3 years of programming experience in IT projects using C#, .NET (including v4.5), WCF, SQL, SQL Server Integration Services (SSIS), HTML, and ASP.NET MVC. Proficiency in JavaScript, jQuery, jQuery UI, HTML5, and CSS3. Familiarity with Visual Studio Ultimate 2013. Knowledge of unit testing and the test automation process. Proven experience in developing web applications. Strong understanding of Object-Oriented Programming (OOP) principles and design patterns. Practical experience designing and programming IT systems for financial institutions (or similar enterprise environments in terms of scale, complexity, and quality standards). Soft Skills & Competencies: High degree of independence, goal orientation, and consistency in task execution. Excellent work organization, fast learning ability, and teamwork skills. Knowledge of business and system requirements analysis, specifically analytical thinking and precise communication. Ability to effectively cooperate with business clients, internal stakeholders, and external suppliers. High communication skills, natural inquisitiveness, and negotiation abilities. English proficiency sufficient for freely working with technical documentation and literature. Nice to Have Understanding of basic UX design principles. Familiarity with AGILE and XP methodologies. Knowledge of PL/SQL and Oracle databases. Practical knowledge of at least one CASE tool (e.g., Sparx Systems Enterprise Architect) and UML. Experience working in a matrix organizational structure. Familiarity with ITIL best practices.

🏢 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: The offer is for a .NET Developer responsible for designing, developing, and maintaining scalable backend applications and APIs within a collaborative engineering environment. The role focuses on high-quality software delivery, architectural contributions, and cloud-based solutions. It also involves application monitoring, incident resolution, and continuous improvement of engineering standards. 🗂️ Requirements: Strong experience with CSharp and DotNetCore, Experience building REST APIs, Proficiency with EntityFrameworkCore and SQL, Experience with Azure or AWS, Experience with CICD pipelines, Proficiency with Git, Experience with unit and integration testing, Knowledge of Agile methodologies, Experience with message brokers such as AzureServiceBus or RabbitMQ 📃 Skills: CSharp, DotNet, DotNetCore, REST, EntityFrameworkCore, SQL, Azure, AWS, CICD, Git, UnitTesting, IntegrationTesting, AzureServiceBus, RabbitMQ, Microservices, Angular, Docker, Kubernetes, AzureFunctions, Agile 🏢 Description: Summary: A highly skilled .NET Developer is needed to solve complex problems and enhance software quality within a collaborative engineering culture. Responsibilities: * Analyze, design, develop, and maintain applications using .NET / .NET Core * Build scalable backend services (APIs) * Collaborate with cross-functional teams (Business, Development, Infrastructure…) * Participate in code reviews and elevate engineering standards * Contribute to architectural decisions and technical roadmaps * Provide business support by monitoring applications and troubleshooting incidents Must Haves: * 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 * Knowledge of Agile development practices * Mindset focused on quality, performance, and maintainability * Experience with a message broker (Azure Service Bus or RabbitMQ) * Fluent in English; proficiency in French or Dutch is a plus Nice to Haves: * 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: * Location: [Not specified] * Team Structure: Cross-functional collaboration is emphasized * Reporting Lines: [Not specified] * Project Context: Development and maintenance of impactful software solutions

🏢 Summary: Junior .NET Developer role focused on supporting the design, development, and maintenance of web and cloud-based applications using .NET, Angular, and AWS technologies. The position involves working with MS SQL databases, contributing to CI/CD pipelines, writing automated tests, and ensuring scalable and stable solutions under guidance. The role emphasizes collaboration, code quality, and adherence to best practices within a cloud-oriented environment. 🗂️ Requirements: Knowledge of .NET Framework, Knowledge of ASP.NET, Knowledge of asynchronous programming, Basic knowledge of RESTful API design, Basic knowledge of AI-powered coding tools, Familiarity with cloud solutions, Familiarity with MS SQL, Understanding of design patterns, Understanding of good programming practices, Basic knowledge of unit testing, Ability to design scalable and stable solutions, Ability to propose and compare technical solutions, English B2 level, Polish B2 level, Familiarity with Git, Understanding of SDLC methodologies 📃 Skills: .NET, ASP.NET, Angular, AWS, MS SQL, REST, Git, CI/CD, UnitTesting, SDLC, AsynchronousProgramming, GitHubCopilot 🏢 Description: Job Description: We are looking for a Junior .NET Developer to join our technology team. As a team member, you will assist in designing, developing, and maintaining applications using dotnet, angular and cloud technologies. The applications we create include Windows services, web applications, and components deployed using native AWS solutions. Responsibilities: Assist in designing, developing and maintaining applications Learn and work with cloud solutions. Write and maintain automated tests under guidance. Contribute to designing and implementing solutions with an emphasis on scalability and stability. Propose technical solutions for presented problems with support from team members. Work with MS SQL databases. Collaborate with other team members and share knowledge. Perform code reviews. Developing CI/CD pipelines. Maintain high code quality following best practices and design patterns. Work closely with Project Managers and other staff members to collect requirements, estimate work, and ensure that projects are delivered according to schedule. Requirements: Knowledge of .net framework and asp.net . Knowledge of asynchronous programming. Basic knowledge of API design principles (RESTful). Basic knowledge of AI-powered coding assistance like GitHub Copilot. Familiarity with cloud solutions. Familiarity with MS SQL databases. Understanding of basic design patterns and good programming practices. Basic knowledge of unit testing. Ability to design scalable and stable solutions with guidance. Ability to propose technical solutions with the comparison of advantages/disadvantages under supervision. English and Polish proficiency at B2 level. Ability to work in a team, good communication skills, and the ability to share knowledge. Familiarity with Git. Understanding of software development lifecycle (SDLC) methodologies. Nice to Have: Experience with AWS Cloud Services. Familiarity with monitoring and logging tools in AWS. Experience with GitHub. Experience with front-end technologies (Angular, AngularJS) is a plus. Understanding of containerization concept. Familiarity with building CI/CD pipelines. We Offer: Full remote position Employment Contract. Stable working environment with a focus on long-term cooperation. Optional English or Spanish lessons. Private medical care (Luxmed). Life insurance (Allianz). Multisport membership. Birthday leave Voluntary days