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Built core AI agent and LLM features for a generative image and video platform, with a strong focus on multi-provider orchestration, prompt optimization, and Cloudflare-based infrastructure.

• Integrated multiple model providers (Google Gemini/Vertex, DeepSeek, Kling) with per-provider token caps, JSON-mode enforcement, and graceful fallbacks.
• Optimized the system prompt for cost and latency with per-turn section gating and prompt-cache telemetry, and made gallery queries sargable via functional Postgres indexes.
• Resolved Cloudflare Worker scaling issues by moving heavy autorun work to Trigger.dev, eliminating out-of-memory 503s, and shipped a hardened analytics proxy worker with rate limiting.

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Built the backend and admin platform for a community-driven product, with a light contribution to the React Native mobile app.

• Developed the NestJS backend—communities, rooms, and posts APIs with CRUD, feed enrichment, S3-backed media uploads, and server-side pagination.
• Hardened authentication and access control with route guards, a rate-limiting throttler, and fixes for unauthorized socket access.
• Built the admin web app with Next.js server actions, React Query, and shadcn/ui for managing communities, rooms, posts, and members.

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Delivered a full-stack portal centralising cooperative records, automating fund utilisation, and generating board-ready Excel reports—cutting manual preparation time by 50% and reducing ledger error rates below 1%.

• Designed fully-normalised database schema with foreign key enforcement and audit trails.
• Created reusable OpenPyXL helpers for multi-sheet spreadsheets with embedded charts.
• Developed a draft-transaction subsystem reused across four divisions via REST API.
• Configured GitHub Actions for linting, testing, Docker builds, and zero-downtime deployment on Render.

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Developed a scalable web application to monitor Crown of Thorns outbreaks in Sarangani Bay, accelerating conservation response through real-time community reporting.

• Integrated Leaflet.js for geospatial mapping of sightings.
• Optimised backend queries for faster data retrieval and visualization.
• Implemented responsive UI for mobile field reporting by community members.

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My primary focus: a high-traffic dating platform spanning a Remix web app and a React Native mobile app. Beyond shipping features, I owned performance optimization, database scaling, billing, and project-management duties—scoping work, tracking tasks, and coordinating priorities across the team.

• Drove a sustained performance push—parallelized auth, profile, and search loaders, removed unnecessary transaction wrappers on batch readers, and cached high-traffic endpoints in Redis to cut response times on the busiest flows.
• Designed and shipped read-replica routing with read/write splitting, read-after-write consistency pinned to primary, and a replica-lag and connection monitoring endpoint to scale database reads.
• Built the paid-subscription and billing system around PayPal—server-side entitlement gating, duplicate-charge prevention, reversible suspended-status handling, and alerting on stray charges.
• Engineered an LLM-based trust and moderation layer with a conversation trust scorer, user-level trust-tag aggregation, and full prompt, token, and output tracing via Langfuse.

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Developed LLM-powered features with prompt engineering on a Remix stack, backed by a Redis queue for reliable asynchronous processing.

• Built LLM features driven by prompt engineering for an information-extraction product.
• Integrated a Redis-backed queue to handle high-volume requests asynchronously and reliably.

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Led technical SEO for two consumer brands, building statically generated marketing and discovery sites on Astro and Cloudflare with a data-driven approach to organic growth.

• Built statically generated region- and gender-based discovery pages with structured data and persona-targeted meta tags for organic search visibility.
• Hardened pages against crawler load and stayed within Cloudflare asset limits while keeping content fast on mobile.
• Stood up an automated content pipeline publishing 50+ keyword-targeted articles via content collections.

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Built and deployed a cloud-native inventory platform providing eight vessel crews real-time visibility into onboard supplies, cutting resupply planning time by 40% and reducing stock-related downtime from ~5 hrs to ~1 hr monthly.

• Implemented role-based access controls for sensitive operations, including PDF generation.
• Developed one-click requisition-slip PDF exports using jsPDF and autoTable.
• Engineered offline-first sync logic to cache transactions and reconcile upon reconnect.
• Set up CI/CD pipeline (lint → test → static export) with GitHub Actions for automated deployments.