Setting Up An API Subdomain - Solving CORS Issues and Production AI Reliability
How I fixed intermittent CORS failures and timeout issues in my AI tools by setting up a custom API subdomain and migrating from free to paid AI providers.
bullet-proof backends
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I'm Steven Mays, a Software Architect building scalable, serverless solutions and AI-driven platforms that reduce costs, accelerate growth, and drive measurable business outcomes.
About Me
Track Record
Results from architecting systems at Billion Dollar+ enterprises and scaling startups.
Led migration from legacy monolith to serverless architecture on AWS, eliminating idle compute costs and reducing monthly spend by half.
Architected automated ad deployment system managing $100K+ daily spend across Facebook, Google, and TikTok — replaced a 10-person media buying team.
Optimized PostgreSQL queries and implemented Redis caching strategies for high-traffic e-commerce APIs serving millions of requests.
Technical Proficiency
Core Expertise
Delivering real-world solutions that transform complex business problems into measurable successes.
Architecting event-driven microservices, APIs, and real-time data processing systems on AWS, reducing operational overhead and costs.
Building production-grade AI tools like the startup generator, leveraging OpenAI GPT-4o-mini with robust JSON parsing and cost-effective serverless architecture.
Elevating engineering teams through hands-on mentorship, code reviews, and effective knowledge-sharing programs.
Technical Stack
Deep experience across modern development languages, frameworks, cloud infrastructure, and databases.
Node.js, TypeScript, Go, C#, GraphQL, NestJS, Serverless Framework, ASP.NET
AWS (Lambda, S3, DynamoDB, API Gateway, CloudFormation), Docker, Kubernetes, CI/CD
Facebook Marketing API, Google Ads API, TikTok Ads, CAPI, Google Tag Manager, Segment, Lookalike Audiences
PostgreSQL, MongoDB, MySQL, DynamoDB, Redis, Elasticsearch
Event-Driven Architecture, NATS, RabbitMQ, AWS SQS/SNS, Kinesis
Generative AI Integration, LLM Prompting, Google Gemini, Claude, GPT
Industry Experience
Automated ad deployment system managing thousands of campaigns with server-side tracking, affiliate portals, and custom attribution systems generating $1M+ annual revenue impact.
Secure and compliant backend systems powering mobile payments, loyalty programs, and investment management.
Robust backend solutions for real-time warehouse automation, asset tracking, and enterprise integrations.
Founded a tech consultancy, scaling rapidly and providing CTO-level technical architecture and strategic guidance to early stage startups.
Looking for technical leadership on your next project? I bring nearly two decades of hands-on experience in serverless architecture, AI integration, and high-scale systems.
Sharing practical advice and proven techniques from decades of engineering and development experience.
How I fixed intermittent CORS failures and timeout issues in my AI tools by setting up a custom API subdomain and migrating from free to paid AI providers.
How I built a retrieval-augmented generation system that lets you chat with Warren Buffett's shareholder letters - to understand RAG trade-offs in production.
How I built a complete AI-powered web application using agentic coding - from concept to production in hours, not days.
Unlock the full potential of your coding workflow by mastering high-leverage techniques with AI.