.Net & Cloud Engineer

🏢 Summary: Hands-on Senior .NET / Azure Engineer role focused on designing and delivering scalable, secure integration solutions across enterprise platforms. The position combines architecture design with end-to-end implementation of API-driven and microservices-based systems in a global financial environment. You will own solutions from concept through production, leveraging .NET and Azure technologies. 🗂️ Requirements: Strong experience with .NET (C#) in enterprise environments, Extensive hands-on experience with Microsoft Azure, Experience with Azure Functions, Experience with Service Bus, Experience with API Management (APIM), Experience with Application Insights, Proven experience building API-driven architectures, Proven experience building microservices architectures, Strong understanding of integration patterns, Strong understanding of distributed systems, Experience with unit testing, Ability to deliver solutions from design to production autonomously 📃 Skills: .NET, C#, Azure, AzureFunctions, ServiceBus, APIM, ApplicationInsights, APIs, Microservices, DistributedSystems, UnitTesting, Python, GCP 🏢 Description: Senior .NET / Azure Engineer (Solutions-Focused) Kraków, Poland (6 days per month onsite – flexible scheduling) Up to 1700 PLN/day (B2B) Overview We’re supporting a global financial services organisation in hiring a Senior .NET / Azure Engineer to play a key role in designing and delivering scalable integration solutions across enterprise platforms. This is a hands-on, solutions-focused position where you will operate at the intersection of architecture and engineering — owning designs and driving them through to production. The core focus is firmly on .NET and Azure , with Python considered a nice to have . The Role You’ll take ownership of designing and delivering robust integration solutions across complex systems, working closely with senior stakeholders and architecture leadership. This is not a pure architecture role — you’ll be expected to design, build, and deliver end-to-end solutions. Key Responsibilities Design end-to-end solution architectures for APIs and microservices Build and deliver scalable, secure integration solutions using .NET and Azure Develop low-latency communication between backend systems and UI layers Lead integration work across platforms using Azure Functions, Service Bus, and APIs Collaborate with senior architecture stakeholders on design approvals and improvements Monitor, debug, and optimise applications using Application Insights Contribute to future-state architecture discussions, including multi-cloud considerations Technical Requirements Strong experience with .NET (C#) in enterprise environments Extensive hands-on experience with Microsoft Azure , including: Azure Functions Service Bus API Management (APIM) Application Insights Proven experience building API-driven and microservices architectures Strong understanding of integration patterns and distributed systems Experience with unit testing and quality-first development practices Ability to move from design to production delivery autonomously Nice to Have Exposure to Python (not a core requirement) Experience with GCP or multi-cloud environments Experience integrating with CRM or SaaS platforms Background working in financial services or regulated environments What We’re Looking For A hands-on engineer with strong design capability Someone who can take ownership — from concept through to delivery A proactive problem solver who can unblock integration challenges Strong communicator, comfortable working with senior technical stakeholders Additional Information Flexible hybrid model: 6 days per month in the Kraków office (not fixed weekly) Long-term programme of work within a global enterprise environment Competitive B2B rate up to 1700 PLN/day

🏢 Summary: Long-term DevOps role focused on designing and maintaining CI/CD pipelines and Azure-based environments supporting enterprise applications. The position involves infrastructure automation, Azure platform administration, and integration with Microsoft Dynamics 365 and Power Platform solutions. You will work closely with technical and business teams to optimize cloud platforms and implement DevOps best practices. 🗂️ Requirements: 5+ years of experience in DevOps, CI/CD, scripting, or automation, Strong experience with Azure DevOps, Experience with Azure platform administration, Hands-on experience building and maintaining CI/CD pipelines, Experience with PowerShell scripting, Experience with Terraform or other IaC tools, Knowledge of Microsoft Dynamics 365 CRM, Knowledge of Power Platform ecosystem, Experience with Jenkins, JIRA, Confluence, Ability to troubleshoot and resolve Azure and Microsoft-related incidents 📃 Skills: Azure, AzureDevOps, PowerShell, Terraform, CI/CD, Dynamics365, PowerPlatform, Jenkins, JIRA, Confluence, IaC, Docker, Kubernetes, Ansible, AzureFunctions, LogicApps, REST, SOAP 🏢 Description: Join an international technology environment where you will play a key role in building and maintaining modern CI/CD and Azure-based solutions supporting enterprise applications and digital platforms. This role is ideal for someone who combines strong DevOps expertise with a proactive, engineering mindset and enjoys working closely with business and technology stakeholders. Project information: Type of project: IT services Office location: Kraków Work model: Hybrid, 2 days from the office Budget: 100-125 net PLN / hour Project length: Long-term Only candidates with citizenship in the European Union Start date: ASAP (depending on candidate’s availability) Your responsibilities Design, develop, and maintain CI/CD pipelines in Azure DevOps Support and optimize Azure platform environments, including troubleshooting and resource management Automate infrastructure and deployment processes using PowerShell and Infrastructure as Code tools Configure and maintain Azure resources and integrations Support environments related to: Microsoft Dynamics 365 CRM Power Platform Power Automate Power Apps Independently handle and resolve Microsoft support tickets and incidents Collaborate with technical and business teams to identify and implement optimal solutions Contribute to technical documentation, process improvements, and platform optimization Support the adoption of new technologies and DevOps best practices We pay attention to candidates who have 5+ years of experience in DevOps, CI/CD, scripting, or automation roles Strong experience with Azure DevOps, PowerShell, Terraform, Azure platform administration Hands-on experience building and maintaining CI/CD pipelines Knowledge of Microsoft Dynamics 365 CRM and Power Platform ecosystem Experience with DevOps and collaboration tools such as Azure DevOps, Jenkins, JIRA, and Confluence Strong analytical thinking and troubleshooting skills Ability to work independently in a fast-paced environment Very good communication and stakeholder management skills Nice to have Familiarity with: Docker Kubernetes containerization concepts Azure Functions Logic Apps REST / SOAP APIs Ansible or other IaC tools technical design documentation data flow diagrams Relevant Microsoft or Azure certifications Experience in the financial services industry We offer Opportunity to work on modern Azure and DevOps environments International and collaborative work environment Exposure to enterprise-scale platforms and cloud technologies Hybrid work model in Kraków (6–9 days per month onsite) Real impact on automation, delivery quality, and platform evolution Multisport Card, private medical card, life insurance Recruitment process Introductory call Technical interview Final decision

🏢 Summary: Development of scalable, cloud-native applications using C#/.NET in a microservices architecture on Microsoft Azure. The role focuses on building high-performance, containerized systems, ensuring quality through CI/CD practices, and optimizing performance in modern cloud environments. Position requires strong engineering expertise and experience in travel-related solutions. 🗂️ Requirements: 5+ years experience with C# and .NET, 3+ years experience developing travel-related solutions, Experience with modern cloud architectures, Expertise in Microsoft Azure, Experience with containerized applications, Experience with SQL and NoSQL databases, Strong knowledge of microservices architecture, Understanding of API design principles, Knowledge of clean architecture and SOLID principles, Experience with CI/CD practices 📃 Skills: C#, .NET, Azure, SQL, NoSQL, Microservices, Containers, APIs, CI/CD, SOLID 🏢 Description: Our Client is a rapidly growing European technology company developing advanced digital solutions used by thousands of customers worldwide. The organization focuses on building scalable platforms and innovative products that support operational efficiency and business growth. Their engineering teams work in modern cloud environments and emphasize quality, user experience, and continuous delivery. The company operates internationally and continuously invests in product development and technology excellence. 📍 Location: Warsaw - once per week in the office 🚀 Your responsibilities Develop clean, scalable code using C# / .NET in microservices architecture and cloud-native environments Test and deploy systems and applications on Microsoft Azure Monitor and optimize system performance , identifying and resolving issues proactively Act as a technical expert for the system and support other internal teams Work in an Agile squad , with strong focus on user experience, quality assurance, and CI/CD practices Contribute to the engineering culture by sharing knowledge and applying best practices Work on projects that directly impact the company’s growth and product development 🎯 Our requirements 5+ years of professional experience in software development using C# / .NET and modern cloud architectures 3+ years of experience developing travel-related solutions Strong understanding of core software engineering principles and API design Proven expertise in building and managing high-performance containerized applications on Microsoft Azure Experience designing and managing SQL and NoSQL databases Deep understanding of microservices architecture, clean code, clean architecture, and SOLID principles Professional English proficiency ⭐ Nice to have Working knowledge of Angular / AngularJS Familiarity with AI tools supporting development workflows Experience working in Agile / Scrum environments Thank you for all applications. We will contact selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ 33580)

🏢 Summary: B2B role for a Senior Fullstack Developer to design and build enterprise fintech applications using Angular 17+ and Node.js, with strong .NET and Azure integration. The position involves developing scalable front-end and back-end solutions, ensuring security, performance, and high code quality across cloud-based environments. Work is hybrid with occasional business travel. 🗂️ Requirements: Minimum 7 years of software development experience, Strong experience with Angular 17+ and TypeScript, Hands-on experience with Node.js, Proficiency in C# and .NET 8+, Experience with ASP.NET Core and Entity Framework Core, Experience with SQL Server and relational databases, Experience with Azure services including Azure AD, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with unit and integration testing using Vitest, xUnit, Moq, Experience integrating RESTful APIs and external systems 📃 Skills: Angular, TypeScript, SCSS, HTML, Node.js, C#, .NET, ASP.NET, EntityFramework, SQL, SQLServer, Azure, AzureAD, Databricks, Docker, Kubernetes, CI/CD, Git, npm, REST, Vitest, xUnit, Moq, JSON, YAML 🏢 Description: Industry: Fintech Location: Hybrid Warsaw lor Gdańsk - 1-2 x month + twice a year, a one-week business trip to Munich. Assignment type: B2B Rates: 4-7 years exp: 138 PLN/h, 7-10 years exp.: 154 PLN/h, 10+ years exp: 167 PLN/h Summary: This role focuses on designing and developing enterprise applications, ensuring high-quality user interfaces and robust back-end systems, primarily using Angular and Node.js with experience in .Net and various cloud services. Main Responsibilities: Design and develop enterprise applications with Angular 17+ on the front end and Node.js on the back end. Experience with ASP.NET Core (.NET 8+) Implement standalone components and signals-based architecture for responsive, maintainable UIs. Integrate Azure MSAL authentication, RESTful APIs, and external system integrations. Build and optimize data access layers using Entity Framework Core and manage relational data in SQL Server. Ensure application security through authentication, authorization, and data protection using Azure AD. Deploy and manage environments using Docker, Kubernetes, and CI/CD pipelines. Write comprehensive unit and integration tests for both front-end (Vitest) and back-end (xUnit, Moq). Collaborate with cross-functional teams to maintain shared libraries and iterate on user feedback. Troubleshoot, debug, and optimize for scalability and performance across the stack. Key Requirements: Experience: minimum of 7 years as a developer. Front-End: Angular 17+, TypeScript, SCSS, HTML. Back-End: Node.JS, C#, .NET 8+, ASP.NET Core, Entity Framework Core, SQL Server. Languages & Formats: C#, SQL, JSON, YAML. Testing: Vitest, xUnit, Moq. Tools & Frameworks: Git, npm, RESTful APIs, Docker, Kubernetes, CI/CD pipelines. Cloud: Experience with Azure services (AD, SQL, Databricks). Nice to Have: Soft Skills such as Attention to Detail, Collaboration, Problem-Solving, and Learning Agility.

🏢 Summary: Senior .NET Developer role focused on building backend microservices and cloud integrations for scalable digital platforms using .NET Core and Azure-related technologies. The position involves developing backend functionalities, partner integrations, search engines, and database optimization in a hybrid or remote work model. 🗂️ Requirements: 5+ years of experience as a Backend .NET Developer, Strong knowledge of .NET Core, Strong knowledge of C#, Experience with SQL Server, Experience creating and optimizing SQL queries, Experience with messaging systems, Business-level Polish communication, Communicative English proficiency, Legal right to work in the European Union 📃 Skills: .NET, C#, SQL, SQLServer, CosmosDB, Azure, AzureServiceBus, EventHub, Kafka, MQ, Elasticsearch, MongoDB, Swagger, OpenAPI, Microservices 🏢 Description: Empower the future of backend development by architecting innovative microservices and seamless cloud integrations! Warszawa-based opportunity with a hybrid work model (1 day in-office per week, typically on Mondays). Fully remote work is also possible but prioritized second. As a Senior .NET Developer – Microservices and Cloud Integration, you will be working for our client, a leader in innovative software solutions. You will contribute to the development of complex backend systems, focusing on microservices architecture and cloud-based integrations, supporting scalable and robust digital platforms. This role offers a path to impactful projects and career growth in a dynamic environment. Your main responsibilities: Design and implement new backend functionalities on the Goodie platform using .NET Core. Develop and maintain microservices and external partner integrations. Implement and enhance content search engines. Work with SQL Server and Cosmos DB for data querying and optimization. Participate in requirement analysis, backlog refinement, and sprint planning. Ensure code quality through unit tests, code reviews, and adherence to best practices. You're ideal for this role if you have: Minimum 5 years of experience as a Backend .NET Developer. Strong knowledge of .NET Core / C#. Experience with SQL Server, including query creation and optimization. Familiarity with messaging systems, preferably Azure Service Bus or Event Hub, or alternative like Kafka or MQ. Proficient communication skills in Polish and English at a business level. It is a strong plus if you have: Experience with Azure AI Search or Elasticsearch. Knowledge of Azure Cosmos DB, MongoDB, or other NoSQL databases. Experience with Azure cloud services (App Services, Functions, Storage, Application Insights, Log Analytics). API documentation skills using Swagger / OpenAPI. Backend development experience for mobile applications. Language Required for the role: Polish (business communication level) and English (communicative proficiency). Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 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 B2B opportunity for an experienced .NET Developer to build and maintain cloud-native applications using modern Microsoft technologies in an international Agile team. The role focuses on developing REST APIs, microservices, and Azure-based solutions with strong emphasis on scalability, security, and CI/CD practices. 🗂️ Requirements: 3 to 5+ years of professional experience in .NET development, Strong knowledge of .NET 10, Strong knowledge of C#, Strong knowledge of ASP.NET Core, Experience building REST APIs, Experience building microservices, Experience with Microsoft SQL Server, Experience with Microsoft Azure services, Experience with Azure Kubernetes Service, Experience with Azure Functions, Experience implementing CI/CD pipelines using Azure DevOps, Familiarity with GitHub Copilot, Experience working in Agile/Scrum environments, Very good English skills, EU citizenship, Residence in Poland, Location in Wrocław 📃 Skills: .NET, C#, ASP.NET, REST, Microservices, SQL, Azure, AKS, AzureFunctions, AzureDevOps, GitHub, Copilot, Docker, Kubernetes 🏢 Description: At Cyclad, we work with top international IT companies to help them deliver cutting-edge technologies that shape the future. We are currently looking for an experienced .NET Developer to join an international team responsible for developing and maintaining modern cloud-native applications. In this role, you will contribute to building scalable, secure, and high-performance solutions using the latest Microsoft technologies while collaborating with international teams in an Agile environment. Project information: Type of project: It services Office location: Wrocław, Poland (candidate must be located in Wrocław) Work mode: Remote Budget: 90–120 PLN net/hour – B2B Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on the candidate's availability) Project scope: Develop and maintain cloud-native applications using .NET 10, ASP.NET Core, and C# Build, develop, and maintain REST APIs and microservices Deploy and support applications running on Azure Kubernetes Service (AKS) and Azure Functions Design, optimize, and maintain Microsoft SQL Server databases Implement and improve CI/CD pipelines using Azure DevOps Leverage GitHub Copilot to increase development productivity Collaborate with cross-functional teams in an Agile/Scrum environment Ensure application performance, scalability, security, and reliability Participate in code reviews and contribute to software engineering best practices Competence demands: 3 to 5+ years of professional experience in .NET development Strong knowledge of .NET 10, C#, and ASP.NET Core Hands-on experience building REST APIs and microservices Experience working with Microsoft SQL Server Practical experience with Microsoft Azure services, including AKS and Azure Functions Experience implementing CI/CD pipelines using Azure DevOps Familiarity with GitHub Copilot Experience working in Agile/Scrum environments Strong analytical and problem-solving skills Good communication skills and ability to work effectively within distributed teams Very good English skills Nice to have: Experience with Docker and Kubernetes Experience developing cloud-native applications Knowledge of modern DevOps practices We offer: Fully remote working model 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: Long-term B2B role focused on building, operating, and improving an enterprise-scale Azure cloud platform with strong emphasis on automation, security, and developer experience. The position involves designing CI/CD pipelines, implementing landing zones and policy-as-code, and integrating cloud services with enterprise systems. Work is hybrid (Warsaw office) with occasional business trips and collaboration in an international environment. 🗂️ Requirements: 3+ years of experience with Microsoft Azure including operations, Strong Infrastructure as Code skills, Knowledge of CAF and Enterprise Scale best practices, Understanding of security and compliance standards, Experience with CI/CD pipelines, Experience with DevOps practices, Experience working in Agile methodologies 📃 Skills: Azure, Bicep, Terraform, CI/CD, DevOps, IaC, CAF, Agile, APIs 🏢 Description: Start : Flexible Contract : B2B, long term cooperation Work model : 3 days from the Warsaw office per week Project language: English/Polish Business trips: to Denmark occasionally Recruitment process: case study + 1 meeting You will play a key role in building, operating, and continuously improving our cloud platform and automation capabilities. Your mission is to enable scalable, secure, and compliant cloud adoption through everything-as-code , strong engineering practices, and deep integration between cloud services and existing enterprise systems. A key focus of the role is to continuously improve platform usability and developer experience . We strive to make the platform intuitive, well-documented, and easy to work with – so development teams can focus on delivering business value rather than dealing with complexity. Responsibilities Design, build, and operate the Enterprise Scale Foundation platform and CI/CD pipelines. Improve platform usability, reliability, and developer experience. Implement and manage Landing Zones, guardrails, and policy-as-code. Develop automation using IaC, APIs, and reusable workflows. Build integrations with enterprise systems (e.g., ITSM, identity, data). Ensure security, compliance, and governance standards are met. Collaborate with teams to drive platform improvements and enable self-service. Requirements 3+ years of experience with Microsoft Azure (including operations). Strong Infrastructure as Code (IaC) skills (Bicep, Terraform) Knowledge of CAF / Enterprise Scale best practices. Understanding of security and compliance (preferably financial sector).Experience Experience with CI/CD, DevOps, and Agile methods. Previous experience with Customer Exeprience.

🏢 Summary: Fully remote .NET Developer role focused on designing and developing modern backend systems based on microservices architecture. The position involves building scalable REST APIs, implementing event-driven solutions, and deploying cloud-native applications on Microsoft Azure using containerized environments. The role also includes working with enterprise integrations, security standards, and database optimization within Agile teams. 🗂️ Requirements: Experience with .NET Core and .NET 8/9, Experience with ASP.NET Core, Experience in microservices architecture, Experience building RESTful APIs, Experience with Apache Kafka, Experience with Docker and Kubernetes, Experience with Microsoft Azure cloud services, Knowledge of OAuth 2.0 and OpenID Connect, Experience with SQL Server and Oracle, Knowledge of event-driven architecture, Experience with container orchestration and Helm, Understanding of SOLID principles and design patterns 📃 Skills: .NET, ASP.NET, Kafka, Docker, Kubernetes, OpenShift, Helm, Azure, SQL, Oracle, OAuth2, OIDC, TLS, AzureAD, REST 🏢 Description: Job Description We are looking for an experienced .NET Developer to design and develop modern backend solutions based on microservices architecture. The role is fully remote in Poland. Responsibilities: Design and develop microservices using .NET (Core / 8/9) and ASP.NET Core Build scalable RESTful APIs and backend services Implement event-driven architecture using Apache Kafka Deploy and maintain applications in containerized environments using Docker, Kubernetes, OpenShift, and Helm Design cloud-native solutions leveraging Microsoft Azure services Integrate applications with enterprise systems and external data sources Apply SOLID principles and modern design patterns Implement security standards including OAuth 2.0, OpenID Connect (OIDC), TLS, and Azure AD (Entra ID) Work with SQL Server and Oracle databases , including performance optimization Conduct code reviews and mentor junior developers Collaborate within Agile development teams Tech Stack: .NET Core / .NET 8/9 ASP.NET Core Apache Kafka Docker, Kubernetes, OpenShift, Helm Microsoft Azure (cloud-native services) SQL Server, Oracle OAuth 2.0, OpenID Connect, Azure AD (Entra ID) REST APIs, microservices architecture

🏢 Summary: Backend role focused on designing and maintaining enterprise-grade cloud environments on Microsoft Azure for an advanced MCP-based AI platform. The position involves building scalable backend systems, multi-tenant architectures, and production-ready infrastructure supporting large-scale enterprise adoption. You will contribute to AI-driven, high-availability systems used by hundreds of thousands of users. 🗂️ Requirements: 5+ years commercial experience in scalable web applications and backend systems, Strong knowledge of .NET Framework and C#, Experience with ASP.NET MVC and Web API 2, Proficiency in MS SQL and Entity Framework, Experience designing and implementing REST APIs and GraphQL, Hands-on experience with Microsoft Azure services, Understanding of microservices architecture and API management, Knowledge of Cloud Design Patterns, Experience building Enterprise SaaS applications, Experience with Clean Architecture, DDD, CQRS, Event Sourcing, Knowledge of vector databases and semantic search in RAG systems, Experience integrating ML/AI APIs in production, Experience designing high-availability and high-volume systems, Familiarity with DevOps practices and Agile methodologies 📃 Skills: C#, .NET, ASP.NET, WebAPI, MSSQL, EntityFramework, REST, OData, GraphQL, Azure, AzureAppServices, AzureFunctions, CosmosDB, AzureServiceBus, AzureSQL, AzureSearch, Microservices, CQRS, DDD, CleanArchitecture, EventSourcing, DevOps, Agile, SaaS, MCP, ML, APIs, MLOps, VectorDB, RAG 🏢 Description: We build innovative digital products for the modern workplace in the Cloud, and we need your expertise. Want to work on backend systems that power real enterprise AI — not just another standard web application? Join us and help develop one of the first enterprise-grade MCP platform implementations in Poland. As part of our team, you will: Utilize your extensive knowledge of cloud computing, system integration, and software development, Design and maintain cloud environments on Microsoft Azure that serve as the experimental backbone for the MCP Graph Broker — one of the first implementations of its kind for enterprise AI in Poland, Configure and validate multi-tenant isolation, load balancing, and real-time monitoring mechanisms, ensuring that research on the Orchestration Layer translates into architecturally sound, scalable solutions, Prepare production-grade environments for enterprise-scale adoption — from controlled lab conditions through to infrastructure serving 500,000+ daily users across banking, retail, and public sector. Apply if you have: Proven 5+ years of commercial experience in building scalable web applications, backend services, and enterprise-grade systems, Strong knowledge of .NET Framework, ASP.NET MVC, Web API 2, MS SQL, Entity Framework, REST, and OData, Familiarity with Azure services and best practices (e.g., Azure App Services, Azure Functions, Cosmos DB, Azure Search, Azure Service Bus, Azure SQL), A solid understanding of Azure cloud services, microservices, and API management, Familiarity with Agile methodologies, DevOps practices, and modern software development tools, Knowledge and ability to apply Cloud Design Patterns, Experience in building Enterprise SaaS applications, Knowledge and experience of .NET / C# and design patterns: Clean Architecture, DDD, CQRS, Event Sourcing, Experience in designing and implementing REST API and GraphQL — with emphasis on enterprise-grade APIs, Knowledge of vector databases and semantic search techniques (e.g., Azure AI Search) in the context of RAG (Retrieval-Augmented Generation) systems, Knowledge of the MCP (Model Context Protocol) protocol or similar context protocols, and practical use of machine learning tools/ML/AI APIs in production environments, Experience in implementing AI API Layer solutions, Experience in designing solutions resilient to high data volumes and high availability, Experience in building application frameworks, Strong problem-solving skills, leadership qualities, and excellent communication abilities, A passion for technology and a keen eye for emerging trends, Fluency in Polish (C1+) and English (B2+), Ability to work from Białystok or surrounding areas; hybrid work model required (at least 3 days in the office + max 2 days remote per week), Higher technical education (computer science or related field). Nice to have: Familiarity with agent orchestration patterns: routing, memory management, tool use, human-in-the-loop, Experience with multi-tenant architecture — designing context separation, data isolation, and access policies in SaaS environments, Practical knowledge of conversational and dialogue models (fine-tuning, RLHF, prompt engineering for LLMs) — particularly for AI assistant scenarios. We offer: Salary of PLN 20,000–22,000 gross per month (employment contract), 18-month contract with the possibility of extension, Work and professional development while building a distributed enterprise-class cloud system based on AI as infrastructure, not as an add-on feature, Direct impact on the architecture of a platform used by hundreds of thousands of employees, Opportunity to explore Azure infrastructure solutions, the latest LLMs, and MLOps tools, Multi-directional professional development, certifications, and knowledge sharing, Flexible work model (hybrid), Benefits package (private healthcare, Multisport card).