Back to SearchLead Software Engineer (.NET / AWS)
Remote in Argentina, & 4 others
.NET& 6 others
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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