Senior .NET Developer (AI / Microsoft Ecosystem)

🏢 Summary: Remote .NET Developer role focused on building and maintaining applications enhanced with AI functionalities. The position involves collaborating on software design, improving AI performance, and ensuring code quality through reviews and best practices. Requires hands-on experience in .NET and practical knowledge of AI technologies. 🗂️ Requirements: Proven experience in .NET development, Practical experience with AI technologies, Knowledge of machine learning concepts, Mid-senior level software development experience, Ability to develop and maintain .NET applications, Experience with debugging and performance optimization 📃 Skills: .NET, C#, AI, MachineLearning, Python, Java, Cloud, Agile 🏢 Description: We are seeking a skilled .NET Developer with experience in Artificial Intelligence (AI) to join a dynamic team. The ideal candidate will exhibit proficiency in .NET development and possess a practical understanding of AI technologies. This position is remote, providing flexibility, with occasional required visits to the office in Trofa. Main Responsibilities Develop and maintain .NET applications with AI functionalities. Collaborate with cross-functional teams to design software solutions. Conduct code reviews and implement best practices. Assess and improve performance of AI implementations. Participate in debugging and troubleshooting processes. Key Requirements Proven experience in .NET development. Familiarity with AI and machine learning technologies. Strong problem-solving skills and attention to detail. Mid-senior level proficiency in software development. Ability to work effectively in a remote environment. Nice to Have Experience with cloud services. Familiarity with Agile methodologies. Additional programming skills in languages such as Python or Java.

🏢 Summary: Remote Microsoft AI Developer role focused on designing and delivering scalable AI solutions using Azure and Microsoft technologies. The position involves translating business needs into AI-driven applications, integrating APIs and microservices, and implementing DevOps best practices. The role also covers full development lifecycle support and technical leadership within Agile teams. 🗂️ Requirements: Degree in Computer Science or related field, Strong experience with Azure AI services, Proficiency in .NET and Python, Experience with APIs and microservices architecture, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Knowledge of SQL or Dataverse, Experience with cloud-based integrations, Ability to work in Agile environments 📃 Skills: Azure, OpenAI, Foundry, Functions, LogicApps, .NET, Python, APIs, Microservices, Docker, Kubernetes, CI/CD, GitHub, AzureDevOps, SQL, Dataverse 🏢 Description: Senovo IT are looking for a Microsoft AI Developer, who will design and deliver AI-driven solutions using Microsoft and Azure technologies, helping clients solve complex business challenges and improve operational efficiency. Location: Remote from Poland Language : Polish and English Key Responsibilities: Design, develop, and deploy scalable AI solutions using Azure and Microsoft 365 tools Translate business needs into technical AI and automation solutions Collaborate with cross-functional teams in Agile environments Integrate APIs and microservices for secure, scalable applications Implement CI/CD and DevOps best practices (GitHub, Azure DevOps) Optimize user experience in collaboration with UX teams Troubleshoot issues and support the full development lifecycle Mentor team members and act as a technical expert Key Requirements: Degree in Computer Science or related field Strong experience with Azure AI (OpenAI, Foundry, Functions, Logic Apps) Proficiency in .NET, Python, APIs, and microservices architecture Experience with Docker/Kubernetes and CI/CD pipelines Knowledge of SQL/Dataverse and cloud-based integrations Strong problem-solving and communication skills If interested and available , please share your cv for an immiediate consideration.

🏢 Summary: Senior Fullstack Engineer role focused on delivering full-stack solutions within an AI-integrated SDLC where AI is embedded across planning, development, review, testing, and deployment. The position combines backend and frontend engineering with AI orchestration, automation, and cloud-native architecture in a remote-first setup. The engineer will also evolve shared AI toolchains and contribute to architectural and code quality standards. 🗂️ Requirements: Team-level AI-integrated SDLC experience across planning, development, review, testing, deployment, Shared AI toolchain management under version control, Hands-on use of Claude Code, GitHub Copilot, Cursor or equivalent as team tools, Building and maintaining custom AI skills and sub-agents for team use, Experience with parallel AI agent orchestration, Spec-driven development using OpenAPI, ADRs, PRDs as AI context, AI-assisted code review integrated into PR process, Working knowledge of AI orchestration frameworks, Backend development with .NET / C# and ASP.NET Core, Frontend development with TypeScript and React or Angular, Experience with SQL databases and ORM frameworks, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with cloud platforms (Azure, AWS, or GCP) 📃 Skills: C#, .NET, ASP.NET, SQL, SQLServer, PostgreSQL, EFCore, OAuth, JWT, Python, Java, Node.js, TypeScript, JavaScript, React, Angular, LangChain, LlamaIndex, CrewAI, Docker, Kubernetes, GitHubActions, AzureDevOps, Azure, AWS, GCP, OpenAPI, CQRS, DDD, EventSourcing, Microservices 🏢 Description: We are looking for a Senior Fullstack Engineer who combines deep technical expertise with real, team-level experience working in an AI-integrated software development lifecycle. Individual use of AI coding assistants is not sufficient for this role. We are specifically looking for engineers who have worked in teams where AI was embedded into every phase of delivery — from planning and design through development, review, testing, and deployment. We follow a remote-first setup with no mandatory regular office visits for this position. From time to time, you may be invited to join in-person meetings in one of our offices (Warsaw, Lodz, Wroclaw, Gdansk, or Bialystok), for example for client visits or team reunions. AI-First Requirements Experience working in an AI-enabled engineering team is mandatory — not a personal workflow preference. You have been part of a team where AI was systematically embedded across all delivery phases: planning, development, review, testing, and deployment. You can speak from direct experience about how it worked, what failed, and what you would change. Specific mandatory requirements: Team-level AI-integrated SDLC experience — shared toolchain, shared configurations, shared assets under version control Hands-on with Claude Code, GitHub Copilot, Cursor, or equivalent as a team tool, not only personal usage Built and maintained custom skills and sub-agents used across a team, not just personally Experience with parallel agent orchestration for concurrent workstream execution Disciplined plan → review plan → execute approach with AI involved at every phase Maintained shared prompt libraries, skill repositories, or agent configurations in version control AI-assisted code review integrated into the PR process: CodeRabbit, Copilot review, or similar Experience with spec-driven or document-driven development where structured specifications (OpenAPI, ADRs, PRDs) serve as AI context inputs, not just human references Working knowledge of at least one AI orchestration framework: LangChain, LlamaIndex, Microsoft Agent Framework, CrewAI, or equivalent Automation-first mindset: proactively identify repetitive or inefficient parts of current work and automate them using AI and other available tools. Cost-aware AI usage: understanding how AI credits are consumed across different tools, models, and workflows, and ability to choose the most appropriate model or approach for each task. Technical Requirements Backend: .NET / C#, ASP.NET Core, SQL Server / PostgreSQL, EF Core, OAuth 2.0 / JWT. Python, Java, or Node.js is a strong plus. Frontend: TypeScript, JavaScript, React(preferable) and/or Angular, state management, async patterns, frontend testing. Architecture: Full spectrum from monolith to microservices — DDD, CQRS, Event Sourcing, event-driven design, message brokers. Infrastructure: Docker, Kubernetes, CI/CD (GitHub Actions / Azure DevOps), Azure / AWS / GCP, structured observability. Responsibilities Deliver full-stack features to a high standard of quality, performance, and reliability Contribute to architectural decisions and system design trade-offs Evolve and maintain the team's shared AI toolchain across all SDLC phases Conduct code reviews including AI-assisted tooling; uphold and enforce engineering best practices Proactively surface risks, bottlenecks, and security concerns Communicate and collaborate directly with clients in English Mentor engineers on both technical fundamentals and AI-augmented workflow practices Professional Qualities Ownership mindset · Strong written and verbal English · Comfortable in client-facing roles · Raises the AI workflow maturity of those around them

🏢 Summary: Senior AI-first Engineer role focused on building and modernizing full-stack systems using advanced AI-assisted development workflows. The position involves designing scalable architectures, delivering production-grade .NET and React solutions, and orchestrating multiple AI agents for parallel task execution. Work spans distributed systems, cloud environments, and high-quality engineering practices in client-facing projects. 🗂️ Requirements: Hands-on experience with AI coding assistants (Claude Code, GitHub Copilot, Cursor or equivalent), Ability to build custom AI skills and orchestrate multiple AI agents in parallel, Strong prompt engineering with critical evaluation of AI-generated output, Production experience with .NET and C# for REST APIs and middleware, Deep knowledge of OAuth2, OpenIDConnect, and JWT, Strong proficiency in JavaScript and TypeScript, Minimum 2 years production experience with React, Experience with state management, asynchronous patterns, and frontend testing, Experience designing monolith, microservices, and distributed architectures, Knowledge of DDD, CQRS, EventSourcing, and event-driven systems, Experience with message brokers (Kafka, RabbitMQ, AzureServiceBus or similar), Hands-on experience with Docker and knowledge of Kubernetes, Experience with CI/CD pipelines, Experience with cloud platforms (Azure, AWS, or GCP), Strong knowledge of SQL and ORM tools 📃 Skills: C#, .NET, REST, OAuth2, OpenIDConnect, JWT, JavaScript, TypeScript, React, DDD, CQRS, EventSourcing, Kafka, RabbitMQ, AzureServiceBus, Docker, Kubernetes, GitHubActions, AzureDevOps, Azure, AWS, GCP, SQL, NoSQL, Python, Java, Node.js, Copilot, Claude, Cursor 🏢 Description: We are looking for a Senior AI-first Engineer who combines deep technical expertise with a genuine, hands-on approach to AI-assisted development. You will work across varied client engagements — from modernizing legacy systems to architecting new products — and are expected to contribute at a high level regardless of project context. The ideal candidate has built a real, personalized AI development workflow — including custom skills, reusable prompt templates, and project-level instructions — and continues to refine it. Out-of-the-box tool usage is not sufficient for this role. We follow a remote-first setup with no mandatory regular office visits for this position. From time to time, you may be invited to join in-person meetings in one of our offices (Warsaw, Lodz, Wroclaw, Gdansk, or Bialystok), for example for client visits or team reunions. Responsibilities Design, develop, and maintain full-stack features with high standards of quality, performance, and reliability Apply AI tools throughout the workflow: generation, refactoring, review, testing, and research Contribute to architectural decisions — technology selection, system design, and trade-off analysis Conduct thorough code reviews and uphold engineering best practices across the team Identify risks, bottlenecks, and security concerns proactively and propose solutions Work directly with clients in English — requirements clarification, technical discussions, progress updates Mentor junior and mid-level engineers through day-to-day guidance and knowledge sharing Stay current with AI tooling developments and contribute findings to the broader team Requirements Hands-on experience with Claude Code, GitHub Copilot, Cursor, or equivalent AI coding assistants Ability to create custom skills and sub-agents and orchestrate multiple AI agents in parallel for concurrent task execution Strong prompt engineering skills; able to produce reliable, high-quality output and critically evaluate AI-generated results Production-grade .NET / C# (REST APIs, middleware, dependency injection) with solid understanding of OAuth 2.0, OpenID Connect, and JWT Deep proficiency in JavaScript and TypeScript 2+ years of hands-on production experience with React (highly preferable) and/or Angular Strong grasp of state management, asynchronous patterns, and frontend testing Confident designing systems across monoliths, microservices, and distributed architectures Working knowledge of DDD, CQRS, Event Sourcing, and event-driven systems, including message brokers (Kafka, RabbitMQ, Azure Service Bus, or similar) Hands-on use of Docker and working knowledge of Kubernetes, along with CI/CD pipelines (GitHub Actions, Azure DevOps, or similar) Experience with cloud platforms (Azure, AWS, or GCP) and observability practices (structured logging, distributed tracing, alerting) Solid background with SQL databases and ORMs; familiarity with NoSQL is a plus Additional exposure to Python, Java, or Node.js is highly desirable Clear communication skills in English (B2+), both written and spoken; comfortable in client-facing environments Salary ranges B2B 135 - 195 PLN/ hour EC 17000 - 24000 PLN/ month

🏢 Summary: Senior .NET Developer role focused on designing and delivering AI-driven solutions using Microsoft technologies and Azure, including Generative AI tools and intelligent automation platforms. The position involves building scalable backend systems, microservices, and cloud-native architectures while leveraging Azure AI services to develop data-driven products. The role covers the full software development lifecycle in an Agile environment with strong emphasis on code quality, DevOps, and cloud integration. 🗂️ Requirements: Strong experience in .NET development, Experience building scalable backend systems, Hands-on experience with Microsoft Azure, Experience with cloud-native architectures, Practical experience with Generative AI technologies, Experience with Azure AI services (Azure OpenAI, Azure AI Foundry, AI Search), Solid understanding of microservices architecture, Experience with event-driven or service-oriented architectures, Experience integrating APIs and building distributed systems, Experience with CI/CD pipelines and DevOps practices, Knowledge of RDBMS (MS SQL or Dataverse), Experience working in Agile environments, Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field, English and Polish proficiency at B2+ level 📃 Skills: .NET, C#, Azure, AzureOpenAI, AzureAIFoundry, AISearch, GenerativeAI, Microservices, EventDriven, SOA, REST, API, CI/CD, GitHub, AzureDevOps, SQL, MSSQL, Dataverse, Python, Docker, Kubernetes 🏢 Description: Working as a Senior .NET Developer, you will: design and develop AI-driven software solutions using the Microsoft technology stack and Azure services build and implement Generative AI tools, plug-ins, microservices, and extensions that support internal products and business processes translate business needs into scalable technical solutions and system architecture develop, test, and deploy new product features while ensuring high code quality and performance leverage Azure AI services (including Azure OpenAI and AI Search) to deliver intelligent automation and data-driven solutions design and integrate APIs and microservices within secure and scalable cloud architectures collaborate closely with cross-functional teams including product managers, UX specialists, and other developers in Agile Scrum environments implement best practices in software development, source control, and CI/CD using tools such as GitHub and Azure DevOps troubleshoot complex technical challenges and support the full software development lifecycle act as a technical expert within the team, sharing knowledge and contributing to continuous improvement initiatives About Chabre IT Services Chabre IT Services is a global professional IT services provider, building long-lasting relationships with Enterprises. We specialize in the delivery of tailor-made solutions,  smart outsourcing, try&hire, and success fee services. We are a smart IT boutique with unique knowledge, which will deliver your ideas into reality. About our Client Our client is a globally recognized professional services organization that invests heavily in advanced technology and innovation to support its business operations and client services. Their internal technology division focuses on building modern digital products, intelligent automation tools, and AI-driven platforms that transform the way employees and clients interact with data and services. Qualifications strong experience in .NET development and building scalable backend systems hands-on experience with Microsoft Azure and cloud-native architectures practical experience working with Generative AI technologies and Azure AI services (e.g., Azure OpenAI, Azure AI Foundry, AI Search) solid understanding of microservices, event-driven and service-oriented architectures experience integrating APIs and building distributed systems familiarity with CI/CD pipelines , source control tools, and DevOps practices (GitHub, Azure DevOps) knowledge of RDBMS systems such as MS SQL or Dataverse experience with Python , containerization technologies (Docker/Kubernetes), or similar tools is a strong advantage experience working in Agile development environments strong analytical thinking and problem-solving skills excellent communication skills and ability to collaborate with technical and non-technical stakeholders proactive mindset and interest in continuously learning new technologies, particularly in the AI space excellent English & Polish skills (at least B2+ level) Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field We offer Rate: 150-170 PLN /h + VAT Remote work Subsidy for peripherals in the amount of 500,00zł Working tool (MacBook Pro or Lenovo Legion 5) Co-financing of courses related to the position Benefits: MultiSport, Medicover

🏢 Summary: Long-term remote contract for a Senior AI .NET Developer focused on designing, developing, and integrating scalable multi-agent AI solutions in the banking sector. The role involves building production-grade C# applications, integrating AI with enterprise and banking systems, and deploying secure, compliant solutions on Azure. The project supports KYC, corporate onboarding, and due diligence processes. 🗂️ Requirements: Minimum 5 years of commercial experience in C# .NET, Experience building and maintaining production applications, Practical experience with LangChain, Practical experience with Microsoft Agentic Framework, Experience delivering and maintaining AI solutions on Azure, Daily experience working with Git, Ability to design scalable and secure solutions, Experience with enterprise system integration 📃 Skills: C#, .NET, Azure, LangChain, Microsoft, Agentic, Git, AI, KYC, AML 🏢 Description: Be in IT to firma rekrutacyjna, wyspecjalizowana w poszukiwaniu Specjalistów z branży technologii informatycznych. Obecnie, dla naszego klienta, poszukujemy osoby na stanowisko: Senior AI .NET Developer. Zakres obowiązków: Długofalowa współpraca z międzynarodową, topową firmą consultingową, świadczącą usługi IT dla dużych i średnich firm z różnorodnych sektorów. Osoba na tym stanowisku będzie odpowiedzialna za projektowanie, rozwój i integrację skalowalnych rozwiązań opartych o multi-agent AI, z naciskiem na bezpieczeństwo, zgodność regulacyjną oraz wysoką jakość rozwiązań produkcyjnych. Projektowanie, rozwój i integracja rozwiązań opartych o multi-agent AI Tworzenie komponentów AI wspierających procesy weryfikacji klientów Rozwój aplikacji produkcyjnych w technologii C# Integracja rozwiązań AI z istniejącymi systemami bankowymi i enterprise. Praca z frameworkami takimi jak LangChain oraz Microsoft Agentic Framework. Wdrażanie i utrzymywanie rozwiązań AI w środowisku Azure. Dbanie o skalowalność, bezpieczeństwo i zgodność rozwiązań z wymaganiami compliance. Współpraca z zespołami technicznymi, analitykami biznesowymi i interesariuszami po stronie klienta. Udział w projektowaniu architektury rozwiązań wspierających KYC i onboarding klientów korporacyjnych. Praca z repozytoriami kodu, code review i codzienne korzystanie z Git. Oczekujemy: Dla naszego klienta z sektora bankowego poszukujemy doświadczonego AI Developera, który dołączy do projektu związanego z wdrożeniem rozwiązań AI wspierających procesy KYC, onboarding klientów korporacyjnych oraz due diligence. Minimum 5 lat doświadczenia komercyjnego w C# .NET. Doświadczenie w budowaniu i utrzymywaniu aplikacji produkcyjnych. Praktyczna znajomość LangChain oraz Microsoft Agentic Framework. Doświadczenie w dostarczaniu i obsłudze chmurowych rozwiązań AI na Azure. Codzienna praca z Git. Umiejętność tworzenia skalowalnych, bezpiecznych i utrzymywalnych rozwiązań. Dobre rozumienie integracji systemów oraz pracy w środowisku enterprise. Mile widziane: doświadczenie w sektorze bankowym (np. KYC, AML). Znajomości języka angielskiego na poziomie B2 lub C1 – umożliwiającej swobodną komunikację w międzynarodowym środowisku. Mile widziana dostępność ASAP; akceptowalny jest maksymalnie miesięczny okres wypowiedzenia ze skutkiem na koniec miesiąca. Oferujemy: Długofalowa współpraca z wynagrodzeniem w przedziale 130-150 PLN netto/godz. + VAT. Wsparcie przy zakładaniu i prowadzeniu działalności gospodarczej, dla osób bez takiego doświadczenia. Sprawny proces rekrutacyjny - dwie rozmowy techniczne z managerami, online (każda maksymalnie po godzinie). Współpraca w pełni zdalna. Benefity - prywatna opieka medyczna, karta Multisport. Nowoczesny sprzęt zapewniany przez firmę, wraz z softem i konfiguracją.

🏢 Summary: Senior .NET AI-Native Engineer role for a 3–6 month remote project focused on building and modernizing complex .NET systems in greenfield and brownfield environments. The position emphasizes daily AI-native development using Claude Code CLI within an agent-based workflow. Responsibilities include designing, developing, refactoring, and validating AI-generated code in enterprise-grade Azure-based architectures. 🗂️ Requirements: 5–10+ years experience with C# and .NET, Practical experience with .NET 6/7/8+, Experience with ASP.NET Core Web API, Knowledge of middleware pipelines and dependency injection, Experience with Entity Framework Core or Dapper, Hands-on experience with Azure services, Strong knowledge of SQL Server or PostgreSQL, Experience with CI/CD pipelines, Proficiency with Git and pull request workflows, Practical experience with Claude Code CLI, Experience working in AI-native or agent-based CLI workflow, Ability to use AI for scaffolding, refactoring, testing, and debugging, Ability to validate and review AI-generated code, Experience in Agile/Scrum environments, Fluent English 📃 Skills: C#, .NET, ASP.NET, EntityFramework, Dapper, Azure, AppService, Functions, ServiceBus, AzureSQL, CosmosDB, SQLServer, PostgreSQL, CI/CD, AzureDevOps, GitHubActions, Git, Claude, CLI, Scrum, Docker, Kubernetes, Blazor, MAUI, Aspire, BenchmarkDotNet 🏢 Description: Senior .NET AI-Native Engineer Poszukujemy Senior .NET AI-Native Engineer do projektu realizowanego dla brytyjskiego klienta z obszaru premium consultancy / enterprise delivery. Projekt obejmuje rozwój złożonych systemów .NET — od budowy nowych mikroserwisów (greenfield), po modernizację istniejących rozwiązań (brownfield). Kluczowym elementem projektu jest praca w modelu AI-Native, z codziennym wykorzystaniem Claude Code CLI. Rozważamy wyłącznie kandydatów z praktycznym doświadczeniem w tym obszarze. Szczegóły projektu Start: kwiecień (preferowane osoby dostępne ASAP) Długość współpracy: 3–6 miesięcy (z możliwością przedłużenia) Seniority: Senior (5–10+ lat doświadczenia) FTE: 1–2 osoby Tryb pracy: 100% zdalnie Język: płynny angielski (codzienna komunikacja, istotne kompetencje miękkie) Wymagania (must have) Bardzo dobra, praktyczna znajomość C# oraz .NET 6/7/8+ Doświadczenie z ASP.NET Core Web API, middleware pipelines oraz dependency injection Znajomość Entity Framework Core lub Dapper Doświadczenie z Azure (App Service, Functions, Service Bus, Azure SQL, Cosmos DB) Bardzo dobra znajomość SQL Server lub PostgreSQL (optymalizacja zapytań, projektowanie schematów) Doświadczenie z CI/CD (Azure DevOps, GitHub Actions lub odpowiedniki) Dobra praktyka pracy z Git, code review oraz pull requestami AI-Native (kluczowe wymagania) Doświadczenie z Claude Code CLI jako podstawowym narzędziem pracy Praca w modelu agentowym / CLI-based workflow Praktyczne wykorzystanie AI do scaffoldingu, refaktoryzacji, generowania testów, code review oraz debugowania Umiejętność skutecznego promptowania, iterowania i walidowania outputu AI w kontekście pracy na repozytorium i kodzie produkcyjnym Umiejętność oceny jakości kodu generowanego przez AI oraz identyfikowania typowych ryzyk (np. hallucinations, async anti-patterns, security gaps) Doświadczenie w pracy w środowisku Agile/Scrum Nice to have Doświadczenie z .NET Aspire, MAUI, Blazor Znajomość mikroserwisów, DDD, event-driven architecture Doświadczenie z Dockerem i Kubernetes Profilowanie i optymalizacja wydajności (.NET diagnostics, BenchmarkDotNet) Znajomość MCP (Model Context Protocol) lub budowania AI-augmented developer toolchains Zakres odpowiedzialności Wykorzystanie narzędzi AI, w szczególności Claude Code, w codziennej pracy developerskiej Tworzenie i rozwój rozwiązań .NET w środowiskach greenfield i brownfield Refaktoryzacja, generowanie testów, debugging oraz wsparcie code review z użyciem AI Projektowanie rozwiązań w podejściu AI-first / AI-augmented Pełna weryfikacja i odpowiedzialność za kod wygenerowany przez AI Identyfikowanie błędów charakterystycznych dla kodu AI-generated Dostarczanie wysokiej jakości pull requestów oraz utrzymywanie wysokiego tempa delivery

🏢 Summary: Senior AI & Full-Stack Developer role focused on building and integrating AI-driven solutions using C# and .NET technologies. The position involves end-to-end ownership of full-stack development, API design, data processing, automation, and LLM integrations within international projects. It offers flexible B2B cooperation with opportunities to work on complex business challenges in a collaborative environment. 🗂️ Requirements: Senior-level commercial experience in C# and ASP.NET (Web Forms/MVC/.NET Core), Experience with IIS hosting and management, Strong knowledge of HTML, CSS, JavaScript, Strong experience with MS SQL Server and relational database design, Practical experience integrating Large Language Models (LLMs), Experience with OpenAI, Anthropic or similar AI APIs, Experience building automation workflows and Windows services, Experience designing and consuming REST APIs, Strong understanding of data transformation and ETL processes, Fluency in English 📃 Skills: C#, .NET, ASP.NET, MVC, WebForms, IIS, HTML, CSS, JavaScript, SQL, MSSQL, LLM, LiteLLM, OpenAI, Anthropic, REST, ETL, WindowsServices 🏢 Description: We are Primotly - a software house based in Warsaw but we’re not just building software - we’re building relationships that last. If you’re ready to lead exciting international projects and help brands bring their vision to life, let’s talk. We are looking for a Senior AI & Full-Stack Developer (C#, .NET, AI) . We are looking for someone who is proactive, self-motivated. You'll be comfortable getting up to speed quickly, taking ownership of your work and working independently, without requiring close supervision. At the same time, we value collaboration and curiosity. The ideal candidate is confident in finding solutions and navigating challenges independently but is also comfortable asking questions, sharing ideas and seeking support when needed. Fluency in English is required , as you will collaborate with an international team. The ideal candidate 🌟 We are looking for a senior-level developer with strong experience in full-stack software development and AI integration. The ideal candidate will have a solid foundation in software engineering, data processing, automation, API development, and modern AI technologies. This is a hands-on role for a proactive and self-driven individual who enjoys working across a varied technology stack and collaborating with cross-functional teams. You'll have the opportunity to tackle complex business challenges, build innovative solutions within a dynamic and supportive environment. If you enjoy solving problems, learning new technologies and turning ideas into practical outcomes, we'd love to hear from you. Technical Requirements: ✅ Strong commercial experience in C# and ASP.NET Web forms / MVC / .NET Core, IIS Hosting and management. ✅ Solid HTML, CSS, JavaScript, and modern web development practices ✅ Strong MS SQL Server and relational database design ✅ Practical experience integrating with Large Language Models (LLMs): LiteLLM proxy and LLM API integrations ✅ Experience using OpenAI, Anthropic (or similar) ✅ Experience building automation workflows and windows services ✅ Experience designing and consuming REST APIs ✅ Strong understanding of data transformation and ETL processes About You 🚀 A senior-level professional who can take ownership of projects from concept through to implementation, working with minimal supervision while collaborating effectively within a team environment. 🧠 Goal-oriented and self-motivated, with strong analytical, problem-solving, and decision-making skills. You proactively identify opportunities for improvement, drive innovation, and tackle technical challenges with confidence. 🔄 Comfortable managing multiple projects, priorities, and technologies at the same time, with the flexibility to adapt quickly in a fast-paced environment where requirements and priorities can evolve. 🤝 An excellent communicator who can work effectively with both technical and non-technical stakeholders, translating business needs into practical technology solutions and collaborating closely with teams across research, operations, analytics, and delivery. About the client: One of the world's leading market research companies, providing data insights and consulting services to help clients make smarter decisions. With a presence in over 90 countries, they combine research expertise and innovative analytics to understand people, markets, and society. Important note: B2B Rate: 165-195 pln /h Here’s what we offer within the B2B cooperation: ➕ You can expect a B2B contract (rate: 165-195pln /h). We will evaluate your experience on our technical interviews. ➕ Regardless of your current insurance, we want to ensure your comfort. That is why we provide access to co-financed private healthcare for our B2B partners. ➕ Not only are your skills substantial, but also your growth! We highly encourage you to take part in meet-ups, online courses, conferences, and external training. ➕ A healthy mind in a healthy body – we support your overall wellness by offering access to a sports card on partnership terms. ➕We focus on outcomes and clear milestones. Cooperation hours and remote work setups are highly flexible, making it easy to align with your rhythm. ➕ To ensure seamless project execution, we offer the possibility of corporate hardware and software provision for the duration of our contract. Here is what the recruitment process looks like: Step 1: HR CV review and getting in touch Step 2: First Interview (30 minutes) Step 3: Second interview (one hour Technical Interview) Step 4: Client interview Step 5: Negotiations ;)

🏢 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: Senior .NET AI Developer responsible for designing and developing modern cloud-based solutions using Azure and AI services, including building advanced RESTful APIs and AI-driven functionalities. 🗂️ Requirements: Minimum 7 years of experience with .NET Core, Advanced experience in building RESTful APIs, Practical experience with Azure AI services: Vision, Speech, Document Intelligence, OpenAI, Hands-on experience with Azure App Services, Hands-on experience with Azure Functions, Hands-on experience with Azure Storage, Hands-on experience with Azure DevOps, Experience with Azure Cache for Redis, Experience with Cosmos DB, Experience with Terraform for infrastructure automation in Azure, Experience with Docker 📃 Skills: .NET, ASP.NET, REST, Azure, Vision, Speech, DocumentIntelligence, OpenAI, AppServices, AzureFunctions, AzureStorage, AzureDevOps, Redis, CosmosDB, Terraform, Docker 🏢 Description: Poszukujemy doświadczonego Senior .NET AI Developera , który dołączy do naszego zespołu i będzie odpowiedzialny za projektowanie oraz rozwój nowoczesnych rozwiązań opartych o chmurę Azure i technologie AI. Wymagania: Minimum 7 lat doświadczenia w pracy z .NET Core – bardzo dobra znajomość oraz praktyczne doświadczenie w tworzeniu API RESTful (poziom zaawansowany) Praktyczna znajomość usług Azure AI , w szczególności: Vision Speech Document Intelligence OpenAI Doświadczenie w codziennej pracy z usługami Azure: App Services Azure Functions Azure Storage Azure DevOps Azure Cache for Redis Cosmos DB (mile widziane doświadczenie w tworzeniu i zarządzaniu własnymi klastrami) Znajomość Terraform oraz doświadczenie w automatyzacji infrastruktury w środowisku Azure Doświadczenie w pracy z Dockerem Dodatkowe atuty: Znajomość Vue.js