Senior .NET Engineer (Full-Stack, Front-End, Cloud)

Hybrid in Poland: Katowice,

.NET

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We're looking for an experienced Senior .NET Engineer with Cloud 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 and the cloud, 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 frameworks
Develop responsive, intuitive, and high-performing user interfaces using front-end technologies such as React or Angular
Work with Product Managers, Designers, and other Engineers to establish application requirements and architecture across both front-end and back-end layers
Manage deployment, integration, and monitoring of software across cloud platforms including Microsoft Azure, AWS, or Google Cloud Platform
Apply cloud-native principles through technologies such as serverless computing, containers (Docker, Kubernetes), and cloud storage solutions
Guarantee application security, performance, and scalability by following best practices in these areas along with cloud architecture
Diagnose and fix technical problems in both production and non-production settings, spanning full-stack components
Take part in code reviews to maintain code quality, reusability, and long-term maintainability across the full stack
Streamline deployment through automated CI/CD pipelines, enabling continuous feature delivery
Keep current with emerging trends in .NET frameworks, front-end frameworks, cloud technologies, and related development tools
Guide 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 experience
At 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 design
Proven ability to build seamless, user-friendly interfaces that integrate effectively with back-end services and APIs
Practical experience working with cloud platforms like Microsoft Azure, AWS, or Google Cloud Platform
Solid grasp of cloud-native architectures and associated tools such as Docker, Kubernetes, or serverless frameworks
Skilled in working with relational and non-relational databases such as SQL Server, PostgreSQL, MongoDB, or DynamoDB
Practical experience designing and developing RESTful APIs
Working knowledge of CI/CD pipelines and related tools like Azure DevOps, Jenkins, or GitHub Actions
Strong 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 detail
Strong communication and teamwork abilities within collaborative environments

Nice to have

Comprehension of AI/ML fundamentals including model training, data preprocessing, and prompt engineering
Knowledge of the constraints and best practices surrounding AI adoption and deployment
Experience applying AI technologies to real-world project scenarios