Senior Full Stack .NET Engineer

We're looking for an experienced Senior .NET Engineer with Cloud and AI expertise to become part of a dynamic development team working on a project for one of our key clients. Your role will involve designing, building, and maintaining secure, scalable, and robust web applications and services through .NET, cloud, and AI technologies, along with strong front-end development skills. You'll work closely with cross-functional teams to deliver innovative solutions that support business objectives and improve user experience. Please note that working from the office in Katowice, Gdansk, Poznan, Lodz, Warsaw, Wroclaw, or Krakow, 3 days per week, is required. Responsibilities Build, test, and maintain web-based applications, services, and APIs leveraging .NET technologies (C#, ASP.NET Core, etc.) alongside modern front-end frameworksDevelop responsive, intuitive, and high-performing user interfaces using front-end technologies such as React or AngularWork with Product Managers, Designers, and other Engineers to establish application requirements and architecture across both front-end and back-end layersManage deployment, integration, and monitoring of software across cloud platforms including Microsoft Azure, AWS, or Google Cloud PlatformApply cloud-native principles through technologies such as serverless computing, containers (Docker, Kubernetes), and cloud storage solutionsIncorporate and utilize AI technologies within practical, real-world projectsAssess, choose, and deploy AI models and frameworks that go beyond basic tool usageSpot opportunities where AI can enhance process automation, analytics, or productsCommunicate AI concepts and workflows clearly to technical and non-technical audiences alikeGuarantee application security, performance, and scalability by following best practices in these areas along with cloud architectureDiagnose and fix technical problems in both production and non-production settings, spanning full-stack componentsTake part in code reviews to maintain code quality, reusability, and long-term maintainability across the full stackStreamline deployment through automated CI/CD pipelines, enabling continuous feature deliveryKeep current with emerging trends in .NET frameworks, front-end frameworks, cloud and AI technologies, and related development toolsGuide junior engineers and help build the team's collective technical expertise Requirements Bachelor's degree in Computer Science, Engineering, or related discipline, or comparable practical experienceAt least 5 years of professional software development experience with C# and .NET technologies (ASP.NET, ASP.NET Core)Strong hands-on experience with front-end technologies such as React or Angular, including component architecture, state management, and responsive designProven ability to build seamless, user-friendly interfaces that integrate effectively with back-end services and APIsPractical experience working with cloud platforms like Microsoft Azure, AWS, or Google Cloud PlatformSolid grasp of cloud-native architectures and associated tools such as Docker, Kubernetes, or serverless frameworksProven hands-on experience applying AI technologies to real-world project scenariosSkill in assessing, choosing, and implementing AI models and frameworks that extend past basic tool usageSolid comprehension of AI/ML fundamentals including model training, data preprocessing, and prompt engineeringTrack record of recognizing where AI can be applied for process automation, analytics, or product improvementsKnowledge of the constraints and best practices surrounding AI adoption and deploymentAbility to break down AI concepts and workflows for both technical and non-technical audiencesSkilled in working with relational and non-relational databases such as SQL Server, PostgreSQL, MongoDB, or DynamoDBPractical experience designing and developing RESTful APIsWorking knowledge of CI/CD pipelines and related tools like Azure DevOps, Jenkins, or GitHub ActionsStrong grasp of software development best practices including Agile methodologies, unit testing, and version control (Git)Strong analytical and problem-solving abilities paired with keen attention to detailStrong communication and teamwork abilities within collaborative environments We offer We gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.