We are seeking a skilled Lead .NET Engineer with deep knowledge of front-end, cloud, and AI to join a dynamic development team supporting a key client. In this role, you will design, build, and maintain secure, scalable, and reliable web applications and services using .NET, cloud, and AI technologies, along with solid front-end development skills. You will collaborate closely with cross-functional teams to deliver innovative solutions that support business goals and enhance user experience. Please note: working from the office in Katowice, Gdansk, Poznan, Lodz, Warsaw, Wroclaw, or Krakow, 3 days per week, is required.
Responsibilities
- Develop, test, and maintain web-based applications, services, and APIs using .NET technologies (C#, ASP.NET Core, etc.) together with modern front-end frameworks.
- Create responsive, intuitive, and high-performing user interfaces using front-end technologies such as React or Angular.
- Collaborate with Product Managers, Designers, and other Engineers to define application requirements and architecture across front-end and back-end layers.
- Oversee deployment, integration, and monitoring of software on cloud platforms such as Microsoft Azure, AWS, or Google Cloud Platform.
- Implement cloud-native principles using technologies like serverless computing, containers (Docker, Kubernetes), and cloud storage solutions.
- Integrate and apply AI technologies within practical, real-world projects.
- Evaluate, select, and implement AI models and frameworks that go beyond basic tool usage.
- Identify opportunities where AI can improve process automation, analytics, or products.
- Explain AI concepts and workflows clearly to both technical and non-technical audiences.
- Ensure application security, performance, and scalability by adhering to best practices in these areas and in cloud architecture.
- Troubleshoot and resolve technical issues in production and non-production environments across full-stack components.
- Participate in code reviews to uphold code quality, reusability, and long-term maintainability across the full stack.
- Simplify deployment through automated CI/CD pipelines to support continuous feature delivery.
- Stay updated on emerging trends in .NET frameworks, front-end frameworks, cloud and AI technologies, and related development tools.
- Mentor junior engineers and contribute to strengthening the team’s overall technical expertise.
Requirements
- Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
- Minimum of 7 years of professional software development experience with C# and .NET technologies (ASP.NET, ASP.NET Core).
- Solid hands-on experience with front-end technologies such as React or Angular, including component architecture, state management, and responsive design.
- Demonstrated ability to build seamless, user-friendly interfaces that integrate effectively with back-end services and APIs.
- Hands-on experience working with cloud platforms such as Microsoft Azure, AWS, or Google Cloud Platform.
- Strong understanding of cloud-native architectures and related tools such as Docker, Kubernetes, or serverless frameworks.
- Demonstrated hands-on experience applying AI technologies to real-world project scenarios.
- Proficiency in evaluating, selecting, and implementing AI models and frameworks beyond basic tool usage.
- Strong understanding of AI/ML fundamentals, including model training, data preprocessing, and prompt engineering.
- Demonstrated ability to identify opportunities where AI can be applied for process automation, analytics, or product enhancement.
- Familiarity with the limitations and best practices related to AI adoption and deployment.
- Ability to explain AI concepts and workflows to both technical and non-technical audiences.
- Proficiency working with relational and non-relational databases such as SQL Server, PostgreSQL, MongoDB, or DynamoDB.
- Hands-on experience designing and building RESTful APIs.
- Familiarity with CI/CD pipelines and related tools such as Azure DevOps, Jenkins, or GitHub Actions.
- Solid understanding of software development best practices, including Agile methodologies, unit testing, and version control (Git).
- Strong analytical and problem-solving skills with attention to detail.
- Excellent communication and collaboration skills in team-oriented environments.
- English proficiency at B2 level or above.
Benefits
- Top tech minds driving innovation in AI, cloud and digital platform modernization.
- Supportive team and agile, startup-like culture.
- Hybrid-by-design mode and opportunity to work remotely within Poland.
- Chance to work abroad for up to 60 days annually.
- Business-driven relocation opportunities.
- Career development programs.
- Thought leadership, mentoring, soft skills and well-being programs.
- Certification opportunities: Anthropic, Gemini, GCP, Azure, AWS.
- English classes.
- Stable pay.
- Participation in the Employee Stock Purchase Plan with a 15% discount.
- Benefits package: health insurance, multisport, shopping vouchers.
- Referral bonuses up to $2,000.
- Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee, and more.
- Corporate, social, and well-being events.
- Please note Benefits listed above are available to employees only.
- Contractors are welcome; terms of B2B cooperation agreements are agreed individually.
- Only selected candidates will be contacted.