Senior .NET Developer (Agentic AI / MCP Platform)

🏢 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).

🏢 Summary: Senior/Lead Cloud/DevOps Architect role focused on building and scaling an enterprise AI-native platform on Microsoft Azure, including one of the first MCP implementations in Poland. The position involves designing and maintaining secure, multi-tenant cloud environments, integrating enterprise systems via APIs, and enabling stable, production-grade AI/ML solutions. You will shape architecture for scalable SaaS systems with strong emphasis on security, reliability, and MLOps practices. 🗂️ Requirements: Minimum 5 years in senior/lead/architect cloud role, Commercial experience building scalable web applications, Experience in DevOps, DevSecOps or MLOps, Production CI/CD pipeline implementation and monitoring, Practical experience with Microsoft Azure services, Experience designing enterprise system integrations via APIs, Experience building connectors, adapters or integration layers, Knowledge of MCP or similar context protocols, Experience with ML/AI APIs in production environments, Strong knowledge of microservices architecture, Experience with multi-tenant SaaS architecture, Experience with Enterprise SaaS applications, Higher technical education (Computer Science or related), Polish C1+, English B2+, Hybrid work availability (3 days/week in office) 📃 Skills: Azure, AzureAppServices, AzureFunctions, CosmosDB, AzureSearch, AzureServiceBus, AzureSQL, CI/CD, AzureML, DevOps, DevSecOps, MLOps, Microservices, REST, GraphAPI, ServiceNow, OAuth2, OIDC, MCP, LLM, SaaS, Multi-tenant, LoadBalancing, Monitoring 🏢 Description: Tworzymy cyfrowe produkty dla nowoczesnego środowiska pracy oparte na chmurze, AI i technologiach, które realnie wspierają pracowników na całym świecie. Szukasz miejsca, w którym DevOps nie kończy się na utrzymaniu środowisk, ale ma bezpośredni wpływ na rozwój skalowalnych systemów AI klasy enterprise? Dołącz do Workai i pomóż nam budować jedno z pierwszych w Polsce wdrożeń MCP dla środowisk korporacyjnych. Jako część naszego zespołu będziesz: pracować z cloud computingiem, integracją systemów i rozwojem oprogramowania w kontekście platformy AI-native, projektować i utrzymywać środowiska Microsoft Azure, które będą fundamentem dla eksperymentalnego rozwoju MCP Graph Broker, konfigurować i walidować mechanizmy izolacji multi-tenant, load balancingu oraz monitoringu w czasie rzeczywistym, tak aby rozwiązania rozwijane w ramach R&D mogły działać stabilnie i skalowalnie, współtworzyć Security & Reliability Framework for MCP — jedno z pierwszych w Polsce rozwiązań tego typu dla środowisk enterprise. Aplikuj, jeśli masz: minimum 5 lat doświadczenia w roli seniorskiej, liderskiej lub architektonicznej w obszarze rozwiązań chmurowych, komercyjne doświadczenie w budowie skalowalnych aplikacji webowych oraz integracji systemów, doświadczenie w jednym z obszarów: DevOps, DevSecOps lub MLOps, w tym we wdrażaniu i monitoringu środowisk produkcyjnych z wykorzystaniem pipeline’ów CI/CD lub Azure ML CI/CD, praktyczną znajomość usług Azure i dobrych praktyk pracy z chmurą, m. in. Azure App Services, Azure Functions, Cosmos DB, Azure Search, Azure Service Bus czy Azure SQL, doświadczenie w projektowaniu i realizacji integracji systemów enterprise przez API, np. Microsoft 365 Graph API, ServiceNow REST API, OAuth2 lub OIDC, doświadczenie w budowie connectorów, adapterów lub warstw integracyjnych, znajomość protokołu MCP / Model Context Protocol lub podobnych protokołów kontekstowych oraz praktyczne doświadczenie z narzędziami ML / AI API w środowiskach produkcyjnych, dobrą znajomość architektury mikroserwisowej, zarządzania API oraz usług chmurowych wykorzystywanych w systemach enterprise, doświadczenie z architekturą multi-tenant, w tym izolacją kontekstu, zarządzaniem zasobami i politykami dostępu w środowiskach SaaS, umiejętność analitycznego myślenia, samodzielnego rozwiązywania problemów i jasnego komunikowania złożonych zagadnień technicznych, pasję do technologii i uważność na nowe trendy w obszarze chmury, AI oraz systemów agentowych, doświadczenie w budowie aplikacji Enterprise SaaS, bardzo dobre umiejętności komunikacyjne i gotowość do współpracy z zespołami technicznymi oraz biznesowymi, dbałość o szczegóły, jakość rozwiązań i stabilność tworzonych systemów, znajomość języka polskiego na poziomie C1+ oraz języka angielskiego na poziomie B2+ w mowie i piśmie, możliwość pracy w modelu hybrydowym z Białegostoku lub okolic — minimum 3 dni w tygodniu z biura i maksymalnie 2 dni pracy zdalnej, wykształcenie wyższe techniczne, najlepiej informatyczne lub pokrewne. Mile widziane : praktyczne doświadczenie z modelami konwersacyjnymi i dialogowymi, w tym fine-tuningiem, RLHF oraz prompt engineeringiem dla LLM, szczególnie w kontekście asystentów AI, doświadczenie w integracji systemów enterprise przez API, np. Microsoft 365 Graph API lub ServiceNow REST API, w roli developera connectorów, adapterów lub integracji MCP, znajomość systemów multi-agentowych projektowanych dla środowisk enterprise, certyfikaty Azure, np. Developer Associate / AZ-204, Solutions Architect Expert / AZ-305 lub równoważne, doświadczenie z ewaluacją modeli AI, w tym projektowaniem eksperymentów i oceną jakości modeli ML. Oferujemy : wynagrodzenie 20 000–22 000 PLN brutto miesięcznie na umowie o pracę oraz 18-miesięczną umowę z możliwością przedłużenia, udział w budowie rozproszonego systemu chmurowego klasy enterprise, w którym AI jest integralną częścią infrastruktury, realny wpływ na decyzje architektoniczne w produkcie używanym przez setki tysięcy pracowników, pracę z nowoczesnymi usługami Azure, najnowszymi modelami LLM oraz narzędziami MLOps, możliwość rozwoju w wielu kierunkach — od certyfikacji, przez wymianę wiedzy, po udział w projektach R&D, elastyczny model pracy hybrydowej, pakiet benefitów obejmujący prywatną opiekę medyczną i kartę Multisport.

🏢 Summary: Senior cloud/DevOps engineer role focused on designing and operating enterprise-grade Azure environments for an AI-driven MCP platform. The position involves building scalable, multi-tenant cloud architectures, implementing CI/CD and MLOps processes, and developing secure integration layers with enterprise systems. You will contribute to security, reliability, and orchestration frameworks for production-ready AI infrastructure. 🗂️ Requirements: 5+ years in senior or lead role in cloud architecture or DevOps, Commercial experience building scalable web applications, Experience with DevOps, DevSecOps or MLOps in production environments, Hands-on experience with CI/CD pipelines, Strong knowledge of Microsoft Azure services and architecture, Experience with enterprise API integrations and system integration, Experience building connectors or integration layers, Knowledge of MCP or similar context protocols, Practical experience with ML/AI APIs in production, Understanding of microservices and API management, Experience with multi-tenant SaaS architecture, Higher technical education in computer science or related field 📃 Skills: Azure, CI/CD, DevOps, DevSecOps, MLOps, AzureML, AppServices, Functions, CosmosDB, AzureSearch, ServiceBus, AzureSQL, Microservices, APIManagement, REST, OAuth2, OIDC, GraphAPI, ServiceNow, MCP, MachineLearning, SaaS, MultiTenant, LoadBalancing, Monitoring 🏢 Description: We build innovative digital products for the modern workplace in the Cloud, and we need your expertise. Want to work on DevOps processes that power real enterprise AI systems — not just keep environments running? Join us and help build one of the first enterprise-grade MCP 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, 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, Design and implement algorithms for the Security & Reliability Framework for MCP – one of the first implementations of its kind for enterprise environments in Poland. Apply if you have: At least 5 years of experience in a senior or lead role, or in cloud solutions architecture, Commercial experience in building scalable web applications and systems integration, Experience in one of the following areas: DevOps, DevSecOps, and MLOps – deployment and monitoring in production environments using CI/CD pipelines and/or Azure ML CI/CD pipelines, Familiarity with Azure services and best practices (e.g., Azure App Services, Azure Functions, Cosmos DB, Azure Search, Azure Service Bus, Azure SQL), Experience in designing and executing enterprise system integrations via API (Microsoft 365 Graph API, ServiceNow REST API, OAuth2, OIDC), Experience in building connectors, adapters, or integration layers, 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, A solid understanding of Azure cloud services, microservices, and API management, Experience with multi-tenant architecture – context isolation, resource management, and access policies in SaaS environments, Strong problem-solving skills, leadership qualities, and excellent communication abilities, A passion for technology and a keen eye for emerging trends, Experience in building Enterprise SaaS applications, Strong communication skills, An eye for detail, Fluency in Polish (C1+) and English (B2+), both spoken and written, 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: Practical knowledge of conversational and dialogue models (fine-tuning, RLHF, prompt engineering for LLMs) – particularly for AI assistant scenarios, Experience with enterprise system integration via API (Microsoft 365 Graph API, ServiceNow REST API) in the role of connector or MCP integration developer, Experience with multi-agent systems at enterprise scale, Azure certifications: Developer Associate (AZ-204), Solutions Architect Expert (AZ-305), or equivalent, Experience with AI model evaluation techniques – experiment design, quality assessment metrics for ML models. 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 our own product – 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).

🏢 Summary: Role focused on developing and maintaining microservices-based systems in a cloud environment using .NET and Angular. The position involves building scalable Web API services, working with MS SQL Server, and deploying applications with Docker and Kubernetes on Microsoft Azure. The offer targets experienced developers ready to work on complex, domain-driven projects with high security standards. 🗂️ Requirements: Very good knowledge of .NET, Good knowledge of Angular, Good knowledge of DevExpress, Good knowledge of SQL, Basic proficiency in Azure, Basic proficiency in Docker, Basic proficiency in Kubernetes, Good knowledge of Web API and API documentation standards, Knowledge of DDD and BDD/TDD patterns, Minimum 3-4 years of programming experience, Experience in complex domain-driven projects, Focus on data security in developed solutions 📃 Skills: .NET, Angular, DevExpress, SQL, MSSQL, Azure, Docker, Kubernetes, WebAPI, Swagger, OpenAPI, AsyncAPI, DDD, BDD, TDD, Microservices 🏢 Description: Jeżeli czujesz się swobodnie w poniższych technologiach i interesuje Cię rozwój w środowisku opartym o mikroserwisy i chmurę – ta rola może być dla Ciebie. Technologie Backend: .NET 7+, Web API; Frontend: Angular, DevExpress; Bazy danych: MS SQL Server; Konteneryzacja i orkiestracja: Docker, Kubernetes; Chmura: Microsoft Azure. Architektura / Metodyka Projektowanie i rozwój systemów w architekturze mikroserwisowej; Praca z dokumentacją API (Swagger / OpenAPI / AsyncAPI); Tworzenie skalowalnych i utrzymywalnych usług sieciowych. Wymagania: Bardzo dobra znajomość: .NET; Dobra znajomość Angular; Minimum dobra znajomość Devexpress; Dobra znajomość SQL; Znajomość i minimum podstawowa biegłość: Azure, Docker, Kubernetes; Minimum dobra znajomość Web API (Swagger/OpenApi/AsyncAPI); Dobra znajomość wzorców projektowych DDD, (BDD/TDD); Wysokie zdolności komunikacyjne; Doświadczenie w projektach o złożonej domenie biznesowej, wymagających zrozumienia domeny i jej modelowania; Wysoka dbałość o bezpieczeństwo przetwarzania danych w tworzonych rozwiązaniach; Doświadczenie w programowaniu min. 3-4 lata; Doświadczenie w branży medycznej będzie dodatkowym atutem. Oferujemy: Stabilne zatrudnienie w ramach umowy o pracę (pełny etat); Roczny system premiowy; Ambitne zadania z obszaru nowych rozwiązań IT; Dofinansowanie do prywatnej opieki medycznej lub karty Medicover Sport; Zniżki na badania diagnostyczne dla Ciebie i Twojej Rodziny; Możliwość przystąpienia do ubezpieczenia grupowego na życie; Dostęp do Zakładowego Funduszu Świadczeń Socjalnych; Dostęp do platformy umożliwiającej naukę języka angielskiego; Dostęp do platformy kafeteryjnej - to Ty wybierasz dla siebie benefity w ramach przyznawanej co miesiąc puli punktów; Inicjatywy i konkursy dla pracowników, dni tematyczne (np. Dzień Pizzy, Tłusty Czwartek i wiele innych); Program Poleceń Pracowniczych z nagrodami finansowymi; Upominek z okazji urodzin.

🏢 Summary: Mid–Senior Python Backend Developer role focused on designing and maintaining scalable backend services, RESTful APIs, and microservices in cloud environments. The position emphasizes Microsoft Azure-based solutions, CI/CD automation, and containerized deployments using Docker and Kubernetes. You will work in an Agile team to deliver secure, high-performance cloud-native applications. 🗂️ Requirements: Commercial experience as Python Backend Developer (mid–senior level), Strong experience with Python, Hands-on experience with Microsoft Azure (App Services, Functions, AKS, Storage), Experience with FastAPI and/or Django, Experience designing RESTful APIs, Experience with microservices architecture, Knowledge of CI/CD pipelines and automated testing, Production experience with Docker and Kubernetes, Knowledge of SQL and NoSQL databases, Understanding of cloud architecture patterns and scalability, Proficiency with Git 📃 Skills: Python, Azure, FastAPI, Django, REST, Microservices, CI/CD, Docker, Kubernetes, SQL, NoSQL, Git, GCP, Databricks, Golang, React, Terraform, Bicep, ARM, Kafka, ServiceBus 🏢 Description: Growth through diversity, equity, and inclusion. As an ethical business, we do what is right — including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics. Tasks: Design, develop, and maintain backend services using Python . Build and optimize RESTful APIs and microservices . Work with Microsoft Azure (priority) to design, deploy, and manage cloud solutions. (Experience with GCP is acceptable as an alternative.) Implement CI/CD pipelines and automated testing workflows. Work with Docker and Kubernetes in production environments. Collaborate in an Agile/Scrum team and participate in code reviews, planning, and architecture discussions. What We're Looking For: Strong commercial experience as a Python Backend Developer (mid–senior level). Hands‑on experience with Azure (App Services, Functions, AKS, Storage, etc.). Experience with FastAPI and/or Django . Proven experience designing RESTful APIs and scalable microservice architectures. Solid understanding of CI/CD , automated testing, and deployment pipelines. Proficiency with Docker and Kubernetes in production. Comfortable working in English and collaborating in cross‑functional teams. Additional Expected Skills: Strong knowledge of SQL/NoSQL databases and data modeling. Understanding of cloud architecture patterns, scalability, and performance optimization. Familiarity with unit, integration, and end‑to‑end testing practices. Proficiency with Git and collaborative development workflows. Awareness of security best practices in cloud and backend environments. What Will Set You Apart: Experience with Databricks or other big‑data/data engineering platforms. Commercial experience with Golang . Full‑stack skills , especially with React. Experience with Infrastructure as Code tools (Terraform, Bicep, ARM templates). Knowledge of event‑driven architectures and messaging systems (Kafka, Azure Service Bus, etc.). Missing one or two of these qualifications? We still want to hear from you! If you bring a positive mindset, we'll provide an environment where you feel valued and empowered to learn and grow. We offer: Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites. “Office as an option” model. You can choose to work remotely or in the office. Workation. Enjoy working from inspiring locations in line with our workation policy. Great Place to Work® certified employer. Flexibility regarding working hours and your preferred form of contract. Comprehensive online onboarding program with a “Buddy” from day 1. Cooperation with top-tier engineers and experts. Unlimited access to the Udemy learning platform from day 1. Certificate training programs. Lingarians earn 500+ technology certificates yearly. Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly. Grow as we grow as a company. 76% of our managers are internal promotions. A diverse, inclusive, and values-driven community. Autonomy to choose the way you work. We trust your ideas. Create our community together. Refer your friends to receive bonuses. Activities to support your well-being and health. Plenty of opportunities to donate to charities and support the environment. Modern office equipment. Purchased for you or available to borrow, depending on your location.

🏢 Summary: The offer is for a senior DevOps/Cloud Engineer to lead and support enterprise cloud migration initiatives in Azure, focusing on CI/CD automation, infrastructure as code, and secure, scalable cloud environments. The role involves managing Azure-based platforms, optimizing performance and security, and collaborating with cross-functional teams to modernize and support business-critical systems. It also includes working with hybrid cloud environments and leveraging AI-powered tools to enhance software delivery processes. 🗂️ Requirements: 5+ years in DevOps, Cloud Engineering, or Platform Engineering, Strong hands-on experience with Microsoft Azure in production environments, Experience building and maintaining Azure DevOps CI/CD pipelines (YAML), Hands-on experience with Azure App Services, WebJobs, and Azure Functions, Knowledge of Azure API Management, Application Gateway, and WAF, Experience with Terraform and Infrastructure as Code practices, Understanding of .NET application hosting environments (.NET 4.8–.NET 8+), Experience with hybrid or multi-cloud environments (Azure and AWS), Experience with secrets management and identity solutions, Experience in enterprise migration or modernization programs, English proficiency minimum B2, Work permit and residence in the European Union 📃 Skills: Azure, AzureDevOps, CI/CD, YAML, Terraform, .NET, APIM, WAF, AppServices, WebJobs, AzureFunctions, ApplicationGateway, KeyVault, ManagedIdentity, AWS, IaC 🏢 Description: 🟣 You will be: supporting and driving cloud migration initiatives across business-critical systems, designing, building, and maintaining CI/CD pipelines in Azure DevOps, managing and optimizing Azure-based infrastructure and application environments, automating infrastructure provisioning and configuration using Infrastructure as Code practices, collaborating with development and architecture teams to ensure reliable and scalable deployments, improving platform security, performance, and operational efficiency, supporting application services and cloud-native solutions throughout the software delivery lifecycle. 🟣 Your profile: 5+ years of experience in DevOps, Cloud Engineering, or Platform Engineering roles, strong hands-on experience with Microsoft Azure, including production-grade environments, proven experience building and maintaining Azure DevOps CI/CD pipelines (YAML-based), hands-on experience with Azure App Services, WebJobs, and Azure Functions, strong knowledge of Azure API Management (APIM), Application Gateway, and WAF, experience with Terraform (azurerm provider) and Infrastructure as Code practices, understanding of .NET-based application hosting environments (.NET 4.8–.NET 8+), experience working with hybrid or multi-cloud environments (Azure + AWS), familiarity with secrets management and identity solutions (Key Vault, Managed Identity), experience working in enterprise migration or modernisation programmes, strong analytical, troubleshooting, and problem-solving skills, good communication skills and ability to work in cross-functional teams, good command of English (min. B2), practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery. 🟣 Nice to have: experience with AWS migration programmes (e.g. MAP or similar initiatives), familiarity with React, Node.js, or EventStoreDB in hybrid architectures, exposure to FinOps practices and cloud cost optimisation initiatives, experience integrating AI tools into engineering workflows (CI/CD, IaC, automation), experience with enterprise-scale policy governance (Azure Policy, guardrails), experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work, interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches. Work from the European Union region and a work permit are required 🟣 Recruitment Process: CV review – HR Interview – Technical Interview - Client Interview – Decision 🎁 Benefits 🎁 ✍ Development: development budgets of up to 6,800 PLN, we fund certifications e.g.: AWS, Azure, access to Udemy, O'Reilly (formerly Safari Books Online) and more, events and technology conferences, technology Guilds, internal training, Xebia Upskill. 🩺 We take care of your health: private medical healthcare, multiSport card - we subsidise a MultiSport card, mental Health Support. 🤸‍♂️ We are flexible: B2B or employment contract, contract for an indefinite period.

🏢 Summary: Backend engineering role focused on building scalable Python services and APIs for an AI platform used by enterprise customers. The position involves developing production backend systems, integrating AI components, and improving reliability in a collaborative engineering environment. Offers modern AI tooling, cloud-native development exposure, and growth opportunities within an AI-focused product team. 🗂️ Requirements: 2–5 years of backend application development experience, Python, REST APIs, Backend services, SQL, PostgreSQL, Asynchronous programming, Background job processing, AWS, Azure, GCP, Testing, Version control, AI development tools, English B2 📃 Skills: Python, FastAPI, Django, PostgreSQL, SQL, AWS, Azure, GCP, Docker, Redis, RabbitMQ, Kafka, TypeScript, REST, Git, CI/CD, ChatGPT, Copilot, Codex, Claude 🏢 Description: About Us Many companies want to use AI agents, but these agents often struggle with real business tasks. We solve this problem by building a platform that helps AI understand business rules, workflows, and processes. This enables AI to make better decisions and provide accurate, reliable, and trustworthy results. Our technology is used by leading companies across multiple industries to automate up to 85% of customer cases, reduce handling time by 20–25%, and complete tasks that previously took hours in just seconds. We work with leading technology partners and have been recognized for our innovative approach. Our mission is to help people everywhere get better answers through AI. About the Role We are looking for a Mid Backend Engineer to help build scalable backend services that power our AI platform. You'll work closely with experienced backend engineers, frontend developers, product managers, and platform engineers to develop new features, improve existing systems, and deliver reliable production software. This is a great opportunity to work on modern AI infrastructure while growing your technical skills in a collaborative engineering environment. Responsibilities - Build and maintain backend services, APIs, and background processing systems. - Develop scalable application logic using Python. - Collaborate with product managers and engineers to deliver new product features. - Integrate backend services with databases, external APIs, and AI components. - Monitor, troubleshoot, and improve production services. - Write clean, maintainable, and well-tested code. - Participate in code reviews and engineering discussions. - Improve development workflows using AI tools and automation. - Continuously learn from production feedback and contribute to improving system reliability and performance. Requirements - 2–5 years of experience building production backend applications. - Good knowledge of Python. - Experience building REST APIs and backend services. - Understanding of relational databases (PostgreSQL or similar) and SQL. - Familiarity with asynchronous programming and background job processing. - Basic understanding of cloud platforms such as AWS, Azure, or GCP. - Understanding of software engineering best practices, testing, and version control. - Good communication skills and willingness to collaborate across engineering and product teams. - Experience using AI development tools such as GitHub Copilot, Claude Code, ChatGPT, or similar. - English at B2 level or higher. Nice to Have - Experience with FastAPI, Django, or similar Python frameworks. - Experience working with Docker and CI/CD pipelines. - Familiarity with Redis, RabbitMQ, Kafka, or similar messaging technologies. - Experience building AI-powered applications or integrating LLM APIs. - Basic knowledge of TypeScript or frontend development. - Interest in distributed systems and cloud-native architectures. What We Offer - 20,000–24,000 PLN B2B (depending on experience). - Company stock options. - MacBook Pro. - Modern technology stack with opportunities to contribute to open-source projects. - Access to advanced AI development tools, including GitHub Copilot, Claude Code, OpenAI Codex, TypingMind, and MCP Servers. - The opportunity to work on production AI systems used by enterprise customers. - A collaborative engineering culture focused on learning, ownership, and continuous improvement. - Career growth alongside experienced engineers in a fast-growing AI company. Our Culture and Values - Quality - We build reliable software with attention to detail and long-term maintainability. - Momentum - We move quickly, learn continuously, and improve through iteration. - Accountability - We take responsibility for our work and communicate openly. - Hard Work - We solve ambitious problems together and support each other along the way. - Learning Agility - We stay curious, embrace feedback, and continuously develop our skills. - Adapt and Thrive - We welcome change and see challenges as opportunities to improve. - Win Together - We collaborate, share knowledge, and succeed as one team.

🏢 Summary: Freelance mid–senior Python Backend Developer role focused on building and maintaining scalable backend services and RESTful microservices in cloud environments. The position involves working primarily with Microsoft Azure, implementing CI/CD pipelines, and deploying containerized applications using Docker and Kubernetes. Engagement is project-based with flexible availability and compensation based on hours worked. 🗂️ Requirements: Strong commercial experience as a Python Backend Developer (mid–senior level), Hands-on experience with Microsoft Azure or GCP, Experience with FastAPI and/or Django, Proven experience designing RESTful APIs, Experience with scalable microservice architectures, Solid understanding of CI/CD pipelines and automated testing, Production experience with Docker and Kubernetes, Strong knowledge of SQL and NoSQL databases, Understanding of cloud architecture and scalability, Proficiency with Git 📃 Skills: Python, Azure, GCP, FastAPI, Django, REST, Microservices, CICD, Docker, Kubernetes, SQL, NoSQL, Git, AKS 🏢 Description: Growth through diversity, equity, and inclusion. As an ethical business, we do what is right — including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics. This job is for Freelance - you will go through the recruitment process normally. We would sign a freelance agreement, and once in place, we could reach out to you whenever a suitable project comes up. At that point, you would always have full flexibility to decide whether you have availability and would like to join. There is no obligation to accept future engagements, and between projects there is no commitment or payment – as is standard in freelance arrangements. We would simply compensate you for the hours worked on active assignments, without the need to sign a new contract each time. Tasks: Design, develop, and maintain backend services using Python . Build and optimize RESTful APIs and microservices . Work with Microsoft Azure (priority) to design, deploy, and manage cloud solutions. (Experience with GCP is acceptable as an alternative.) Implement CI/CD pipelines and automated testing workflows. Work with Docker and Kubernetes in production environments. Collaborate in an Agile/Scrum team and participate in code reviews, planning, and architecture discussions. What We're Looking For: Strong commercial experience as a Python Backend Developer (mid–senior level). Hands‑on experience with Azure (App Services, Functions, AKS, Storage, etc.). Experience with FastAPI and/or Django . Proven experience designing RESTful APIs and scalable microservice architectures. Solid understanding of CI/CD , automated testing, and deployment pipelines. Proficiency with Docker and Kubernetes in production. Comfortable working in English and collaborating in cross‑functional teams. Additional Expected Skills: Strong knowledge of SQL/NoSQL databases and data modeling. Understanding of cloud architecture patterns, scalability, and performance optimization. Familiarity with unit, integration, and end‑to‑end testing practices. Proficiency with Git and collaborative development workflows. Awareness of security best practices in cloud and backend environments. What Will Set You Apart: Experience with Databricks or other big‑data/data engineering platforms. Commercial experience with Golang . Full‑stack skills , especially with React. Experience with Infrastructure as Code tools (Terraform, Bicep, ARM templates). Knowledge of event‑driven architectures and messaging systems (Kafka, Azure Service Bus, etc.). Missing one or two of these qualifications? We still want to hear from you! If you bring a positive mindset, we'll provide an environment where you feel valued and empowered to learn and grow.

🏢 Summary: Oferta dla Fullstack Developera obejmuje tworzenie skalowalnych systemów i mikroserwisów z wykorzystaniem Java, Python oraz Angular/React, a także integrację rozwiązań AI i LLM. Rola obejmuje współtworzenie architektury, rozwój backendu i frontendu oraz wdrażanie nowoczesnych narzędzi AI w procesach developerskich. Praca jest w 100% zdalna z elastycznymi godzinami i udziałem w międzynarodowych projektach. 🗂️ Requirements: Minimum 2 lata doświadczenia komercyjnego, Bardzo dobra znajomość Java, Znajomość Spring, Znajomość Spring Boot, Znajomość Python, Doświadczenie z Angular, Znajomość TypeScript, Znajomość JavaScript, Znajomość HTML5, Znajomość CSS3, Doświadczenie z React, Doświadczenie z Docker, Doświadczenie z Kubernetes, Doświadczenie z OpenShift, Znajomość Maven, Znajomość npm, Znajomość Git, Znajomość Bitbucket, Umiejętność budowy mikrousług RESTful, Znajomość JSON, Znajomość XML, Język angielski na poziomie B2, Otwartość na kontakt z klientem 📃 Skills: Java, Python, Spring, SpringBoot, Angular, React, TypeScript, JavaScript, HTML5, CSS3, Docker, Kubernetes, OpenShift, Maven, npm, Git, Bitbucket, REST, JSON, XML, LLM, RAG, GenAI, AI, ML 🏢 Description: Dołącz do zespołu, który tworzy nowoczesne rozwiązania informatyczne – od pierwszych wersji MVP po rozbudowane systemy klasy Enterprise. Szukamy osoby, która lubi łączyć świat backendu i frontendu, współtworzyć architekturę rozwiązań oraz szukać najlepszych technologicznie sposobów realizacji projektów. Twój zakres obowiązków: Projektowanie i rozwój skalowalnych i wysokodostępnych rozwiązań zarówno w architekturze mikroserwisów jak również hybrydowych z wykorzystaniem AI (Backend w Java/Python, Frontend w Angular/React) Integracja systemów z modelami AI (LLM, RAG, agenci AI) przy użyciu Python i odpowiednich frameworków Analiza specyfiki rozwiązań i sugerowanie podejścia do realizacji Dbanie o jakość kodu i zgodność z obowiązującymi standardami Sprawdzanie/testowanie nowych narzędzi AI i wdrażanie ich (zarówno do kodu, jak i do procesów developerskich) Wymagania: Minimum 2 lata doświadczenia komercyjnego Bardzo dobra znajomość Java oraz Spring/Spring Boot, Python. Doświadczenie w rozwoju aplikacji frontendowych w Angular, TypeScript , JavaScript, HTML5 i CSS3, React Doświadczenie z konteneryzacją (Docker/ Kubernetes/ OpenShift) Znajomość narzędzi takich jak Maven, npm, Git i Bitbucket Biegłość w budowaniu mikrousług RESTful przy użyciu JSON i XML Zainteresowanie i nadążanie za rozwojem AI i nowymi narzędziami oraz doskonalenie własnego warsztatu Znajomość języka angielskiego na poziomie min. B2 Otwartość na kontakt z klientem Mile widziane: Doświadczenie z rozwiązaniami GenAI i modelami LLM Zrozumienie architektury modeli AI Wiedza na temat algorytmów ML (np. regresja liniowa, drzewa decyzyjne, k-means) Oferujemy: 100% pracę zdalną Elastyczne godziny pracy Niekorporacyjne podejście do pracy Długoterminowe, międzynarodowe projekty Szkolenia merytoryczne oraz budżet szkoleniowy - naszą wartością są ludzie, ich wiedza i doświadczenie, dlatego wspieramy ich rozwój finansując szkolenia Kartę Multisport, ubezpieczenie grupowe UNIQA i prywatną opiekę medyczną (LuxMed/ Medicover)

🏢 Summary: Lead Full-Stack /.NET Developer role focused on modernizing a legacy accounting platform into a cloud-native Azure-based solution using microservices, .NET Core, Angular, and Kubernetes. The position involves backend API development, legacy system decomposition, Azure integrations, CI/CD, and AI-assisted software delivery practices. Candidates will work on scalable cloud architecture while collaborating across engineering and product teams. 🗂️ Requirements: 5+ years experience with .NET Core / ASP.NET Core and C#, Experience designing and implementing REST APIs, Angular frontend development skills, Understanding of microservices architecture, Experience with relational databases, Practical experience with Azure cloud services, Experience with CI/CD pipelines, Knowledge of Docker and Kubernetes / AKS, Ability to work with legacy systems and complex business logic, Strong troubleshooting and collaboration skills, Good English communication skills 📃 Skills: C#, ASP.NET, NETCore, Angular, REST, Azure, AKS, Docker, Kubernetes, SQL, AzureSQL, SQLServer, AzureDevOps, APIManagement, ApplicationGateway, FrontDoor, KeyVault, AzureMonitor, ACR, CI/CD, Microservices, GitHubCopilot 🏢 Description: We are looking for a strong Lead Full-Stack / .NET Developer to support the modernization of a legacy accounting application and its migration to Azure Cloud. The project focuses on transforming an existing desktop/monolithic application into a modern cloud-based solution based on microservices, .NET Core backend APIs, Angular frontend, and Azure platform services. The role requires hands-on engineering experience, strong backend/API development skills, and the ability to work in a modernization context where new cloud-native components need to coexist with legacy systems and shared data models. The team will also use AI-assisted delivery practices and AI agents as part of a new AI SDLC approach to improve development, analysis, testing, and delivery efficiency. Responsibilities Design, develop and maintain backend services and APIs using .NET Core / ASP.NET Core Support decomposition of legacy monolithic functionality into modular services and APIs Development and enhancement of Angular-based frontend components where needed Integration of application components with Azure services and existing backend systems Work with Azure Kubernetes Service, API Management, Application Gateway, Azure SQL and related platform services Contribute to technical analysis of legacy application behavior, data flows and integration points Implementation of clean, maintainable and testable code following engineering best practices Participation in code reviews, automated testing, CI/CD pipelines and release activities Collaboration with architects, product owners, QA engineers and other developers to clarify requirements and technical constraints Use of AI-assisted development tools and agents as part of the project delivery process Requirements 5+ years of experience with .NET Core / ASP.NET Core and C# Solid experience in designing and implementing REST APIs Skills in Angular and modern frontend development Understanding of microservices architecture and application modernization patterns Experience working with relational databases, preferably Azure SQL / SQL Server Practical experience with Azure cloud services Proficiency in CI/CD pipelines, preferably Azure DevOps Understanding of containerized application delivery, preferably Docker and Kubernetes / AKS Capability to work with legacy systems, existing data models and complex business logic Strong troubleshooting, communication and collaboration skills Good English communication skills Nice to have Background in accounting, finance, ERP or invoicing systems Experience migrating desktop or monolithic applications to cloud-native architectures Familiarity with Azure API Management, Application Gateway, Front Door, Key Vault, Azure Monitor and Azure Container Registry Expertise in domain-driven design, service decomposition and API-first development Skills in automated testing and quality engineering practices Flexibility to use AI-assisted development tools such as GitHub Copilot, Claude Code or similar coding agents Interest in AI SDLC, agent-assisted delivery and modern software engineering automation We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.