We are looking for a Chief Software Engineer (.NET / AWS) to guide the design and modernization of large-scale, mission-critical applications. You will lead a transition to cloud-native AWS architectures with event-driven designs, employing C# (.NET 8/9) and React, while overseeing migration efforts from .NET Framework 4.8 on ASP.NET/IIS. This role requires setting architectural direction, delivering secure RESTful APIs, codifying infrastructure with IaC, and mentoring engineers.

Responsibilities

• Drive the technical design and architecture for cloud-native applications, while leading the modernization of legacy ASP.NET/IIS systems to serverless AWS architectures
• Build robust backend services with C# 12/13 and .NET 8/9, while maintaining support for legacy .NET Framework 4.8 systems
• Create responsive React-based user interfaces
• Architect scalable AWS solutions using Lambda, API Gateway, EventBridge, SQS/SNS, DynamoDB, and S3
• Design and document secure RESTful APIs adhering to OpenAPI or SwaggerHub standards
• Model and optimize data structures for both relational (Oracle, MS SQL Server) and NoSQL (DynamoDB) databases
• Write optimized and complex T-SQL and PSQL queries
• Implement strong security controls for API access and identity management with OAuth, AWS Cognito, and strict AWS IAM policy configurations
• Automate provisioning of cloud infrastructure using AWS CDK, CloudFormation, or SAM
• Establish and maintain high-quality CI/CD pipelines with Git-based workflows
• Ensure system reliability and performance through effective monitoring, logging, and alerting using tools such as Datadog and AWS CloudWatch
• Mentor junior engineers and shape the team’s architectural strategy

Requirements

• 7+ years of professional software engineering experience, with a proven track record in a Senior, Lead, or Principal role
• At least 2 years of relevant leadership experience
• Expertise in C# 12/13 and .NET 8/9, alongside maintaining and migrating .NET Framework 4.8, ASP.NET, and IIS systems
• Hands-on skills in building modern web applications using React
• Extensive knowledge of AWS serverless and core services, including Lambda, API Gateway, EventBridge, SQS/SNS, DynamoDB, S3, and IAM
• Strong proficiency in RESTful API design and documentation with OpenAPI or SwaggerHub
• Demonstrated background in relational databases such as Oracle and Microsoft SQL Server, including advanced SQL scripting (T-SQL and PSQL), with familiarity with NoSQL (DynamoDB)
• Competency in CI/CD pipeline creation, Git workflows, and Infrastructure as Code tools like AWS CDK, CloudFormation, or SAM
• Advanced understanding of secure API design, authentication methods, and AWS Cognito
• Familiarity with configuring and utilizing Datadog and CloudWatch for effective monitoring and troubleshooting
• English language proficiency at an Advanced level (C1) with exceptional communication abilities in both written and verbal mediums

Nice to have

• Knowledge of additional programming languages such as Node.js, Python, JavaScript/TypeScript, or Java

We offer

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn