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.NET/AWS Architect at OZ Digital LLC. This position is responsible for owning the technical architecture and backend delivery of an AWS-hosted, API-driven integration platform. You will serve as the keystone role for the project, leading API design, defining AWS infrastructure strategies (IaC), establishing security patterns, and guiding the development team through delivery to production. This role requires strong communication and collaboration skills to effectively interact with clients, cross‑functional teams, and internal leadership, while bridging the gap between high‑level architectural decisions and hands‑on implementation to ensure robust, high‑quality outcomes.. The Responsibilities of Integration developer include but are not limited to:  . Own and resolve complex technical challenges while leading architecture decisions across teams. . Translate business requirements into scalable, secure .NET and cloud-native solutions. . Define backend and API architecture aligned with AWS Well-Architected Framework principles. . Design high-performance REST APIs using async patterns and optimized data contracts. . Implement secure authentication, authorization, and API throttling using OAuth 2.0. . Architect reliable webhook and event-driven integrations with idempotency and retry mechanisms. . Design highly available AWS infrastructure using API Gateway, ALB, Auto Scaling, and RDS. . Establish API standards and OpenAPI specifications for parallel development. . Enforce coding standards, perform architecture reviews, and mentor engineering teams. . Design, build and manage CI/CD pipelines for automated cloud deployments. . Define disaster recovery, backup strategies, and system resiliency targets (RTO/RPO). . Implement centralized logging, monitoring, and alerting for production readiness. . Drive on-time delivery while maintaining strong stakeholders and client engagement. . Analyze business workflows to continuously optimize system performance. . Required Skills & Experience: . 10+ years in backend engineering. . 5+ years working with AWS. . Prior experience as an architect or lead on API centric B2B integration projects. . Strong experience with .NET 6/7/8 (Web API, async programming, dependency injection, middleware). . Deep understanding of RESTful API design, Swagger/OpenAPI standards, and integration patterns (Webhooks, Polling, Events). . OAuth 2.0 flows, Scopes, Token Validation, and API security best practices. . Deep knowledge of API Gateway, ECS/EC2, RDS (SQL/Postgres), IAM, CloudWatch, and Secrets Manager . Proficiency in Terraform or AWS CDK. . Experience with tools such as GitHub Actions or Azure DevOps. . Strong SQL experience (schema design, optimization). . Experience designing systems for high availability (Multi-AZ) and defining RTO/RPO targets. . Qualifications:  . Bachelor's or Master's degree in Computer Science, Information Systems, or a related field. .  . Company Location: Argentina.