Chief Software Engineer (.NET / AWS)

Description

We are building a **Chief Software Engineer (.NET / AWS)** role to steer the design and modernization of mission\-critical applications at scale. You will lead a cloud\-native shift to AWS event\-driven architectures using C\# (.NET 8/9\) and React while guiding migration from .NET Framework 4\.8 on ASP.NET/IIS. You will set architectural direction, deliver secure RESTful APIs, codify infrastructure with IaC, and coach engineers—apply now **Responsibilities** * Drive the technical design and architecture for cloud\-native applications and lead the modernization plan from legacy ASP.NET/IIS to serverless AWS architectures * Build resilient backend services in C\# 12/13 and .NET 8/9 while maintaining and supporting legacy .NET Framework 4\.8 systems * Create and maintain responsive React user interfaces * Architect and deploy scalable AWS solutions using Lambda, API Gateway, EventBridge, SQS/SNS, DynamoDB, and S3 * Design, document, and deliver secure RESTful APIs aligned with OpenAPI / SwaggerHub standards * Model and optimize data structures across relational (Oracle, MS SQL Server) and NoSQL (DynamoDB) databases * Write complex, highly optimized T\-SQL / PSQL queries * Implement strong security controls for API access and identity management using OAuth, AWS Cognito, and strict AWS IAM policies * Automate cloud infrastructure provisioning with AWS CDK, CloudFormation, or SAM * Establish and maintain robust CI/CD pipelines using Git\-based workflows * Ensure reliability and performance through monitoring, logging, and alerting with Datadog and AWS CloudWatch * Mentor junior engineers and influence the team’s architectural vision **Requirements** * 7\+ years of professional software engineering experience, with a proven track record in a Senior, Lead or Principal role * Expertise in C\# 12/13 and .NET 8/9, plus strong experience maintaining and migrating C\# .NET Framework 4\.8, ASP.NET, and IIS environments * Hands\-on experience building modern web applications with React * Extensive hands\-on background with AWS serverless and core services including Lambda, API Gateway, EventBridge, SQS/SNS, DynamoDB, S3, and IAM * Strong capability in RESTful API design and documentation using OpenAPI / SwaggerHub * Solid background working with relational databases (Oracle, Microsoft SQL Server) including strong SQL scripting (T\-SQL / PSQL) and familiarity with NoSQL (DynamoDB) * Demonstrated experience with CI/CD pipelines, Git workflows, and Infrastructure as Code (AWS CDK, CloudFormation, or SAM) * Deep understanding of secure API design, Auth, and AWS Cognito * Hands\-on ability to configure and use Datadog and CloudWatch for monitoring and troubleshooting * English proficiency at B2 (Upper\-Intermediate) level or higher **Nice to have** * Programming experience with additional 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