Software architecture

Systems designed around their failure modes, with every decision written down.

I take architectural ownership from first sketch to production: the cloud layout, the data model, the deployment pipeline and the written record of why each choice was made.

Roles I am after: Software Architect, Lead Engineer, Principal Engineer
Main tools: AWS ECS Fargate, Aurora Serverless v2, Multi-tenancy, CI/CD, ADRs

Email me Read the résumé

Address: hello@ykaycode.com

What I would bring

Cloud and delivery: AWS, Docker, GitHub Actions
Data: PostgreSQL
Backend: NestJS

Work to look at first

Structera

Full-stack engineer, architect and deployment

Construction management software for contractors: projects, crews and estimates in one platform, with AI-powered insights. I did the full stack, the architecture and the deployment.

Software architecture Backend engineering Full-stack web

NestJS, React, PostgreSQL, Prisma, AWS, Stripe

Read the case study Visit structera.org (opens in a new tab)

Where I have worked

Lone Star Civil
IT Manager and Lead Software Engineer
Mar 2025 to now, San Antonio, Texas (remote)
I lead the design, build and deployment of a contractor-management platform with AI features, and I own the company's software and cloud infrastructure.
- Run the backend on AWS ECS Fargate with Aurora Serverless v2 PostgreSQL, S3 and CodeBuild pipelines, deploying without downtime.
- Built a NestJS and TypeScript REST API with more than 50 endpoints, JWT authentication, role-based access and per-company data isolation.
- Added features on the Claude API: streamed answers, tool use and document processing for PDF, DOCX, XLSX and images, leading to automated bids, cost estimates and price comparison.
- Model the data in Prisma on PostgreSQL, including schema design, query tuning and migrations for construction-domain data.
Independent
Full-stack developer and consultant
Feb 2019 to Mar 2023, Remote
Delivered web applications for clients in education, e-commerce and logistics, from architecture to deployment.
- Wrote custom backends in PHP with Laravel and in Node.js: authentication, admin dashboards, reporting and API integrations.
- Deployed on AWS with DNS, SSL, Nginx and automated backups.
- Advised small businesses on technical architecture as they moved online.

Looking for something else? Backend engineering, Full-stack web, Mobile apps.