Lead .NET Developer with AWS expertise

We are seeking a Lead .NET Developer with strong AWS expertise to drive the modernization of legacy applications into cloud-native, high-performance solutions. In this role, you will leverage AI-powered tools and AWS best practices to design scalable microservices, migrate legacy systems and ensure seamless database compatibility, while collaborating across teams to deliver robust and maintainable software.

To discover more about .NET practice at EPAM, visit this page.

Feel free to work remotely from anywhere across Lithuania or connect with colleagues at our Vilnius and Kaunas offices.

Responsibilities

• Leverage Kiro and Amazon Transform to accelerate code analysis, refactoring and migration tasks; validate and optimize tool-generated outputs
• Design and develop high-performance, scalable applications using .NET Core with a microservices architecture
• Migrate and refactor legacy .NET Framework (Windows) applications to .NET Core (Linux), ensuring functional parity and improved performance
• Modify and optimize application code and stored procedures to ensure compatibility with PostgreSQL / Aurora PostgreSQL, following AWS development standards
• Implement unit tests and performance tests to ensure application stability, responsiveness and production readiness
• Partner with database engineers to ensure seamless integration between application code and PostgreSQL
• Collaborate closely with AWS ProServe consultants on validation and optimization activities
• Apply AWS Well-Architected Framework principles across security, reliability, performance efficiency and operational excellence
• Document key findings, migration strategies, code conversion patterns and technical validation results for long-term maintainability and knowledge transfer

Requirements

• 5+ years of expert-level proficiency in C# / .NET Core and advanced experience with .NET Framework
• Advanced expertise in AWS native development
• Background in microservices architecture
• Proven skills in .NET Legacy (Windows) to .NET Core (Linux) modernization
• Advanced proficiency in SQL Server, PostgreSQL and Amazon Aurora PostgreSQL
• Expertise in stored procedure migration (T-SQL → PL/pgSQL)
• Competency in unit and performance testing
• English communication skills with overlap with the US EST time zone

Nice to have

• Familiarity with Kiro and Amazon Transform
• Knowledge of AWS DMS / SCT
• Understanding of Docker and containerization on AWS, including Amazon ECS / EKS
• Skills in CI/CD pipelines (GitHub Actions, CodePipeline)

We offer

• Engineering Heritage: Best-in-class experts sharing a culture of engineering excellence and tackling complex engineering challenges for over 30 years
• Advanced Tech Stack: Innovative projects where you can apply or enhance your expertise in Cloud, Data, AI, and other emerging technologies
• World-Class Clients: Work closely with 340+ of the Forbes Global 2000 on creating disruptive solutions that make a global impact
• Professional Growth: Exceptional support for career development with comprehensive resources for upskilling or reskilling in pioneering practices
• GenAI Community: Strong AI competencies with 600+ experts across 55+ locations driving GenAI-enabled transformation journeys
• Entrepreneurial Culture: If you're passionate and dedicated to improving business transformation, we provide the support you need to bring your ideas to life
• Hybrid Setup: The flexibility to work from any location in Lithuania, whether it's your home or our dynamic offices in Vilnius and Kaunas
• Other Benefits: Additional vacation and trust days, private health insurance, Employee Stock Purchase Plan and more

Salary range €4.6K-€6.5K gross, based on your experience and interview results.

EPAM is a leading global provider of digital platform engineering and development services. For over 30 years, our team has helped leading brands navigate the waves of digital transformation, building solutions that help them stay competitive through constant market disruption.With offices in 55+ countries, EPAM has grown in Lithuania to over 1,300+ talented innovators in just 5 years. We foster creativity and unconventional ways of doing things, welcoming like-minded professionals to join us.