EPAM Systems

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/Benefits

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.