Senior .NET API Architect (API)

Senior .NET API ArchitectIndianapolis, Indiana - Hybrid or On-siteType: ContractJob DescriptionRole Overview We are seeking a proactive, detail-oriented .NET API Architect to drive end-to-end technical solutions in a fast-paced environment. This role requires 15+ years of overall IT experience, including 6 to 8 years of specific exposure to API architecture and cloud solutioning. This is a hybrid or on-site position, offering the chance to bridge the gap between business needs and technical execution. You will act as a key individual contributor, collaborating with external partners to build resilient, cloud-native systems.Experience & Job Setup Overall Experience: 15+ years in IT.Specialized Exposure: 8- 10 years in API architecture.Work Location: Indianapolis, Indiana, USA, Hybrid or On-site.Key ResponsibilitiesArchitecture & Solutioning: Translate complex business requirements into scalable, high-performing technical solutions.API & Microservices Design: Design and develop robust RESTful services and microservices architectures.System Documentation: Author comprehensive High-Level Design (HLD) and Low-Level Design (LLD) documents.Technical Diagramming: Utilize tools like Lucidchart or Draw.io to map architecture and system workflows.Stakeholder Management: Partner with external stakeholders to integrate third-party systems seamlessly.Independent Problem Solving: Troubleshoot and resolve complex technical issues autonomously.Technical Expertise Core .NET & Database Languages & Frameworks: C#, .NET Core.ORM Tools: Entity Framework.Database Management: PostgreSQL design, query optimization, and performance tuning.AWS Cloud Ecosystem Serverless & Compute: AWS Lambda.Messaging & Integration: SQS, Event Bridge.Data & Storage: AWS Glue, Amazon S3.Management & Monitoring: CloudWatch, Parameter Store.DevOps & Advanced ConceptsCI/CD Deployment: Harness (or similar configuration management tools).Architectural Patterns: Domain-Driven Design (DDD) and monolithic decomposition strategies.Resiliency Engineering: Implementation of idempotency strategies for fault-tolerant systems.AI-Assisted Development: Hands-on experience with Cursor (or similar AI tools) and Large Language Models (LLMs).