Overview

We are looking for a Senior .NET Developer with AWS experience to join our dynamic and collaborative team.

This engagement focuses on transforming legacy applications into scalable, cloud-native solutions — migrating selected microservices to the latest .NET Core, modernizing from Windows to Linux, optimizing performance, and ensuring seamless integration with AWS services. The work is delivered as an AI-agentic modernization engagement leveraging Kiro and Amazon Transform, aligned with AWS cloud-native best practices and the AWS Well-Architected Framework.

It is a remote position for Poland.

Responsibilities

  • Use 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; work closely with AWS ProServe consultants on validation and optimization
  • Apply AWS Well‑Architected Framework principles across security, reliability, performance efficiency, and operational excellence
  • Capture key findings, migration strategies, code conversion patterns, and technical validation results for long‑term maintainability and knowledge transfer

Requirements

  • 3+ years of experience in software engineering with a focus on .NET technologies
  • Expertise in C#/.NET Core and advanced proficiency in .NET Framework
  • Background in AWS native development at an advanced level
  • Skills in microservices architecture and modernizing .NET Legacy (Windows) applications to .NET Core (Linux)
  • Proficiency in SQL Server, PostgreSQL and Amazon Aurora PostgreSQL
  • Competency in stored procedure migration (T-SQL → PL/pgSQL)
  • Qualifications in unit and performance testing
  • Excellent English communication skills (B2+ level) with availability to 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
  • Experience with Amazon ECS/EKS
  • Capability to build CI/CD pipelines using GitHub Actions and CodePipeline

Poland (Prod)

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.

[epamgdo] Poland (About EPAM)

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.