Lead Software Engineer (.NET / AWS)

Description

We are seeking a highly skilled **Lead Software Engineer** to oversee the design, development, and modernization of critical applications. This role involves leading cloud\-native transformation efforts, creating scalable event\-driven architectures **in AWS using modern C\# (.NET 8/9\) and React**, as well as managing and evolving legacy .NET Framework 4\.8 systems. As a key contributor, you'll define the architectural roadmap, develop secure RESTful APIs, implement Infrastructure as Code (IaC), and provide mentorship to less experienced engineers. **Responsibilities** * Lead the technical design and architecture of cloud\-native applications, emphasizing the transition of legacy ASP.NET/IIS systems to serverless AWS solutions * Develop and maintain backend services utilizing C\# 12/13 and .NET 8/9, with support for existing .NET Framework 4\.8 applications * Build intuitive and responsive user interfaces using React * Architect scalable AWS\-based systems using Lambda, API Gateway, EventBridge, SQS/SNS, DynamoDB, and S3 * Design and document secure RESTful APIs in alignment with OpenAPI / SwaggerHub standards * Optimize and design relational data models for Oracle and MS SQL Server, with additional competency in NoSQL databases like DynamoDB * Write advanced, high\-performance T\-SQL / PSQL queries * Enhance application security through protocols like OAuth, AWS Cognito, and strict IAM policies * Automate cloud infrastructure deployment using AWS CDK, CloudFormation, or SAM * Maintain quality pipelines for CI/CD using Git workflows * Implement and manage monitoring, logging, and alerting systems, leveraging tools like Datadog and AWS CloudWatch * Mentor junior engineers while contributing to the team’s architectural goals **Requirements** * 5\+ years of professional experience in software engineering, with a proven track record in a Senior, Lead, or Principal capacity * At least 1 year of relevant leadership experience * Expertise in C\# 12/13 and .NET 8/9, along with familiarity with maintaining and transitioning C\# .NET Framework 4\.8, ASP.NET, and IIS environments * Proficiency in modern web application development with React * Extensive background in AWS serverless technologies, including Lambda, API Gateway, EventBridge, SQS/SNS, DynamoDB, S3, and IAM services * Knowledge of RESTful API standards and ability to document them using OpenAPI / SwaggerHub * Competency in working with relational databases such as Oracle and Microsoft SQL Server, combined with familiarity with NoSQL databases like DynamoDB * Experience with CI/CD pipelines, Git workflows, and tools for Infrastructure as Code, such as AWS CDK, CloudFormation, or SAM * Understanding of secure API implementation, authentication mechanisms, and AWS Cognito services * Capability to implement and manage monitoring tools such as Datadog or CloudWatch for performance and reliability tracking * Excellent command of written and spoken English (B2\+ level) **Nice to have** * Background in programming with additional languages like 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