09/28/2026 updated

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Full Stack AI Engineer

Bluffton, USA
Only remote
B.S. Computer Science
Bluffton, USA
Only remote
B.S. Computer Science

Profile attachments

Bryan_Stewart_Resume_Cresta.docx

About me

I’m a full-stack AI engineer with 8+ years of experience building and shipping software products. In recent years I’ve focused heavily on AI/LLM applications, including AI agents, conversational systems, generative AI, and multi-model platforms. I enjoy working on difficult technical problems

RAGVitestGeminiGCPSupabaseJavaScriptApplication Programming Interfaces (APIs)Artificial IntelligenceBootstrap (Software)Cloud EngineeringLinuxDevOpsPython (Programming Language)PostgreSQLMongoDBMySQLNode.jsOpenStackMixpanelNext.jsSystems IntegrationTypeScriptEnterprise Application IntegrationReact.jsSwiftuiExpress.jsGrafanaPrompt EngineeringSwift (Programming Language)Generative AIBackendGitFastAPIKotlinStripeAngularJSSentryFull Stack DevelopmentFront End Software DevelopmentReact ReduxArtificial Intelligence Markup Language (AIML)MochaWebhooksDocker
AI & LLM Integration
Deep expertise in integrating AI and LLM capabilities into production systems, including OpenAI, Google Gemini, xAI/Grok, Anthropic, Mistral OCR, and Vercel AI SDK. Proficiency in prompt engineering, embeddings, hybrid search, RAG-style orchestration, and LLM tool/function calling to build configurable, no-code-style AI interfaces.

Full Stack Web Development (React/TypeScript & Node.js/Python)
Strong command of building end-to-end web applications using React 18, TypeScript, Next.js, Redux, and Chakra UI on the frontend, combined with Node.js/Express and Python/FastAPI on the backend. Extensive experience architecting scalable REST APIs and streaming interfaces for AI-powered products.

Database Design & Backend Architecture
Solid background in relational and NoSQL data modeling using PostgreSQL, Supabase (RLS, Auth, Storage, Functions), MySQL, and MongoDB. Skilled in designing permission-driven data access patterns, foreign key constraints, cascading operations, and Row Level Security for multi-tenant applications.

Cloud Infrastructure & DevOps
Hands-on experience deploying and operating services on AWS (S3, ECS), GCP (Cloud Run, Cloud Tasks, Logging), Docker, Kubernetes, and Vercel. Familiarity with CI/CD pipelines, GitOps workflows, and secret-backed environment management for dev/stage/production deployments.

Observability & Monitoring
Practical use of Sentry, Grafana, Pino, Mixpanel, and structured logging to establish service health dashboards, environment-aware release tagging, and production telemetry for reliable, observable systems.

Testing & Quality Assurance
Experience with Jest, Vitest, Mocha, Jasmine, and Zod for unit, integration, and schema validation testing. Proficiency in E2E testing and CI/CD automation to ensure reliable deployments and fast iteration cycles.

Mobile & Cross-Platform Development
Experience shipping cross-platform applications for iOS and Android using Capacitor, with maintained build pipelines using AGP 8.x, Java 17/Kotlin, and Xcode, including automated source map uploads in CI-only contexts.

Payments & Growth Integrations
Integration of monetization and billing flows using Stripe, webhooks, AppsFlyer, and APNs/FCM push notifications for secure server-side payment handling and user growth instrumentation.

Search & Discovery
Integration of search and discovery solutions using Typesense and Algolia, including secret-managed configuration, environment isolation, and hybrid template search with OpenAI embeddings.

Languages

EnglishNative speaker

Project history

Full Stack AI Engineer

Venngage
Architected and shipped a production design chat agent (AI Chat / design copilot) on Express + TypeScript with SSE streaming. Built a Layout Agent on the Vercel AI SDK for structured function-call design editing. Designed a multi-provider model execution layer across OpenAI, Google Gemini, and xAI/Grok. Developed AiDesigner guided pre-generation flow and Universal Generator end-to-end. Integrated Mistral OCR for document understanding. Extended agent with brand-kit awareness. Built evaluation tooling (editor2-judge). Delivered supporting AI surfaces including image/icon generation. Owned editor-side AI experience in React 18 + TypeScript + Chakra UI + Redux. Maintained production readiness with Zod-validated APIs, Jest/Vitest, Supabase-backed persistence, S3 asset handling, and AWS ECS task definitions. Built and maintained Python/FastAPI microservices for AI processing tasks.

Full Stack AI Engineer

Butterflies AI
Shipped a cross-platform social + generative-AI app across mobile (iOS/Android via Capacitor) and web (Next.js). Built an LLM orchestration service for bot runs, image generation, and task-driven workflows with queue-based processing. Designed and migrated a relational data model for conversations and per-user/bot feature toggles. Hardened data access with role-based GRANTs and least-privilege patterns. Integrated Typesense for search and discovery. Added monetization and billing flows with Stripe. Operationalized the service on Kubernetes and Cloud Run. Established observability with Sentry and Grafana. Maintained modern Android/iOS build pipelines.

Full Stack AI Engineer

Kindroid
Architected and launched a next-generation AI companionship platform using Next.js for SSR, SSG, and dynamic routing with a modular React component system. Designed scalable data models in Supabase (PostgreSQL) with Row Level Security. Developed a real-time conversational AI system orchestrating OpenAI APIs. Implemented a flexible personality engine for custom AI companions. Engineered AI-powered image generation flows using diffusion models. Built real-time voice call features using ElevenLabs and WebRTC. Integrated live web browsing and media capabilities. Conducted E2E testing and CI/CD automation.

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