Full Stack Developer

*\*\* THIS IS A 9-12 MONTH CONTRACT \*\** About the Role We are hiring a Software Engineer to design and build enterprise full-stack web applications from our on-premise engineering center, delivered onto AWS Cloud. You will own features end-to-end - from database schema and C# service layer through Angular UI - and drive AI-assisted engineering practices (GitHub Copilot, Copilot Chat, prompt-driven development) across the team. You will be a technical leader on SOLID design, clean architecture, and secure, scalable cloud-native systems. What You Will Do * Design and build production-grade full-stack web applications using C# / .NET 8+, ASP.NET Core Web API, Entity Framework Core, and Angular 17+. * Model, tune, and evolve relational schemas in SQL Server / PostgreSQL and integrate with Aurora / RDS in AWS. * Architect for AWS deployment: API Gateway, Lambda, ECS/EKS on Fargate, S3, SQS/SNS, EventBridge, Secrets Manager, CloudWatch, KMS. * Apply SOLID, Clean Architecture, and Domain-Driven Design principles; enforce them through code reviews and pair programming. * Drive AI-assisted development across the team - GitHub Copilot / Copilot Chat, prompt libraries, code-generation guardrails, secure prompt patterns, and test generation. * Integrate LLM-powered capabilities into applications (chat, summarization, classification, RAG) via Azure OpenAI / AWS Bedrock; wire PII / PCI / PHI guardrails at the prompt boundary. * Write and maintain unit, integration, and contract tests (xUnit / NUnit, Jasmine / Karma, Playwright); target 80%+ coverage on core services. * Own CI/CD in Azure DevOps or GitHub Actions with build -> test -> security scan -> deploy to AWS via CDK or Terraform. * Instrument with OpenTelemetry; publish metrics/traces to CloudWatch + Managed Grafana. * Partner with architects, product owners, and QA to break epics into deliverable sprint work; mentor 2-4 mid-level engineers. * Participate in on-call rotation for owned services (business-hours primary, off-hours secondary). Required Skills & Experience * 8+ years professional software engineering; 5+ years on C# / .NET production applications. * Strong ASP.NET Core Web API and Entity Framework Core; async/await, dependency injection, minimal APIs, middleware pipeline. * Angular 15+ production experience: components, RxJS, NgRx or Signals, standalone components, reactive forms, lazy-loaded modules, unit testing. * Deep relational database skills: schema design, indexing, query tuning, execution plans, stored procedures, migrations. SQL Server and at least one of PostgreSQL / MySQL. * Practical AWS cloud experience deploying real workloads: IAM, VPC, API Gateway, Lambda or ECS/EKS, RDS/Aurora, S3, SQS/SNS, CloudWatch, Secrets Manager, KMS. * Demonstrable command of SOLID principles, design patterns (Repository, CQRS, Mediator, Strategy, Factory), and clean-architecture layering. * AI-assisted development fluency: using GitHub Copilot / Copilot Chat daily as a productivity tool - writing effective prompts, evaluating suggestions critically, generating tests, refactoring, and documenting via AI. Ability to coach others in the same. * Experience integrating with LLM APIs (Azure OpenAI, AWS Bedrock, or OpenAI) and applying safety patterns (input validation, PII redaction, output filtering, prompt-injection defenses). * Strong Git workflow, code review discipline, and comfort with trunk-based or GitFlow branching. * Excellent written and verbal communication; ability to write design docs, ADRs, and runbooks. Preferred / Nice-to-Have * AWS certification (Developer Associate, Solutions Architect Associate, or higher). * Docker + Kubernetes hands-on (EKS, Helm). * IaC with AWS CDK (TypeScript / C#) or Terraform. * Event-driven architecture experience (EventBridge, Kafka / MSK, Kinesis). * Micro-frontend or module-federation experience. * Vector databases (pgvector, OpenSearch, Pinecone) and RAG pipelines. * Regulated-industry background (banking, healthcare, insurance) with awareness of SOC 2, PCI-DSS, HIPAA constraints. * Contributions to open-source .NET or Angular projects. Pay: $50.00 - $70.00 per hour Benefits: * Dental insurance * Health insurance * Vision insurance Work Location: In person