David Discua

Selected work

• AI executive decision platformShippable executive AI product: agents, RAG, and hybrid deploys—not a chat demo.Consultant · AILeadership

  Problem

  AILeadership (founded by Geoff Woods, The AI-Driven Leader) needed an executive decision product—memory, tools, guardrails, and hybrid hosting—not another disposable chat demo.

  Approach

  Shaped modular services with clean boundaries, secure APIs, RAG + vector retrieval, and agent orchestration with eval/memory loops—Azure OpenAI for models, GCP Cloud Run and Kubernetes for runtimes, TypeORM on Postgres for the data layer.

  Impact

  End-to-end ownership of a shippable AI platform: product surfaces, agents, enterprise and on-prem style deploys, with auth, encrypted storage, and delivery pipelines treated as part of the system.

  TypeScript · NestJS · React · GraphQL · TypeORM · PostgreSQL · RAG · Vector search · Azure OpenAI · GCP · Cloud Run · Kubernetes

• Healthcare operations platformTech lead on clinical ops: HL7, Temporal workflows, and two-gate auth.Consultant · Hope Medical

  Problem

  Hope Medical runs advanced brain-health and trauma workflows. Scheduling queues, HL7 ingest, patients, notifications, and law-firm handoffs can’t treat permissions and audit as afterthoughts.

  Approach

  Tech lead on an Nx Nest monorepo: strict module boundaries, shared Zod contracts, two-gate auth (RBAC + record access), repository/service layering, Temporal for durable workflows, and HL7/notification flows as first-class integrations.

  Impact

  Consulting delivery that kept product and clinical ops aligned—coherent architecture, shippable slices, and patterns teams can extend without spaghetti.

  NestJS · React · Nx · Zod · PostgreSQL · Temporal · HL7 · Azure · n8n · PostHog

• Business ops SaaS platformValidated APIs and GCP promotion paths on a multi-industry ops product.Consultant · Dubsado

  Problem

  Dubsado is a flexible business-ops canvas across industries—clients still need predictable APIs, validated schemas, and deploys that don’t rely on tribal knowledge.

  Approach

  Clear client / API / data split with validated contracts into MongoDB Atlas, and GCP promotion paths (GitHub Actions + Cloud Build) as part of the system shape.

  Impact

  Reliable full-stack delivery on a multi-industry SaaS surface—features and cloud releases the team could re-run without heroics.

  React · Node.js · Express · Zod · Mongoose · MongoDB Atlas · GitHub Actions · GCP

• Multi-cloud security intelligenceOne risk view across AWS, GCP, and Azure—inventory, scoring, not three consoles.Consultant · Oppo's

  Problem

  Oppo’s builds security tooling for messy cloud estates. Risk signal across AWS, GCP, and Azure was fragmented—operators needed one coherent product view.

  Approach

  UI over API adapters: cloud SDKs as the integration edge, shared inventory/risk modeling in SQL, GPT-class models as an intelligence layer on infrastructure metadata—not a chat wrapper on logs.

  Impact

  A cross-cloud security analysis path—one system for collecting, scoring, and presenting infrastructure risk instead of three disconnected consoles.

  Angular · Python · Django · AWS · GCP · Azure · SQL · GPT

• Patient digital platformsProduction patient PWAs with component systems, secrets, and analytics discipline.Consultant · Pfizer

  Problem

  PfizerForAll and Living with UC needed patient-facing PWAs with reliability, partner integrations, analytics, and enterprise security—under real healthcare constraints.

  Approach

  Reusable Angular/Ionic component systems, AWS Lambda + CloudFront delivery, Vault secrets, Tenable in the security loop, Adobe Analytics pipelines, and hard boundaries to backends like Newton Connect and GPA.

  Impact

  Production patient platforms with consistent UI architecture, measurable usage, and secrets/security discipline built into how the system ships.

  Angular · Ionic · AWS · Lambda · CloudFront · Vault · Tenable · Python · Jest

• Mint token platform for releaseProduction Mint token UX and APIs for Midnight Network’s launch window.Consultant · Midnight Network

  Problem

  Midnight Network needed a production-ready Mint token experience for launch—secure chain interactions, reliable APIs, and a frontend that could survive a real release window.

  Approach

  Helped design and ship the Mint token platform: Next.js product UI, NestJS APIs for scalable blockchain interactions, AWS Lambda for serverless event/compute paths, security-hotspot remediation, and integration with the Midnight/Cardano ecosystem.

  Impact

  Supported Midnight’s release with a Mint token platform built for real users—usable UX, hardened APIs, and operable serverless/chain plumbing—not a demo wallet.

  Next.js · NestJS · TypeScript · AWS Lambda · Midnight · Cardano · Web3

• Anti-fraud & platform integrity at scalePolicy and integrity surfaces plus cache, telemetry, and secrets as structure.Consultant · Indeed

  Problem

  Indeed’s marketplace can’t treat abuse lightly. Policy enforcement and integrity checks had to stay accurate and fast without freezing product velocity.

  Approach

  Embedded on the anti-fraud policies team—proctoring and policy surfaces across Java services and React UIs, Storybook as the shared UI contract, and Terraform-backed platform underneath (ElastiCache Redis, Datadog monitors-as-code, MongoDB Atlas, Vault).

  Impact

  Stronger fraud/policy product surfaces plus operable platform architecture—cache, telemetry, and secrets as structure, not tribal knowledge.

  React · Java · AWS · Terraform · Redis · ElastiCache · Datadog · MongoDB Atlas · Vault · Storybook

• Ricoh Smart Cloud ConfiguratorCloud configurator that deploys hardware/software templates without spaghetti.Consultant · Ricoh

  Problem

  Ricoh needed a cloud platform where configuration templates deploy settings to hardware and software based on each client’s estate—legacy UI and microservice sprawl made change risky.

  Approach

  Modernized and extended RSCC across AngularJS/Redux/Observables and C# ASP.NET Core; acted as DBA for integrity; drove DevOps across Dev/QA/Prod in VSTS; microservice and sidecar patterns for flexibility at the edge of devices.

  Impact

  A robust cloud configurator architecture that bridges hardware/software deployment templates with maintainable services and environment discipline.

  AngularJS · Redux · C# · ASP.NET Core · VSTS · SQL

• Employee recognition & rewards platformConsolidated GraphQL-backed app—legacy capabilities without split-brain product.Consultant · KazooHR

  Problem

  KazooHR’s recognition and rewards product needed a consolidated app experience—legacy features and a modern GraphQL-backed surface had to become one coherent product.

  Approach

  React frontend with Node.js + GraphQL Apollo services on PostgreSQL; Dockerized delivery; migrated critical legacy capabilities into the main KazooHR application without breaking day-to-day HR workflows.

  Impact

  A clearer product architecture: modern full-stack delivery plus a migration path that reduced split-brain between legacy and current apps.

  React · TypeScript · Node.js · GraphQL · Apollo · PostgreSQL · Docker

• Web3 infra & gasless UXGasless APIs and operable chain infra on GCP—provision, index, observe.Consultant · DEGA / NFTY

  Problem

  DEGA and NFTY sell Web3 tooling and multi-chain exchange experiences—chain UX tax and fragile infra push away studios, players, and operators.

  Approach

  Gasless APIs (OpenGSN) in front of Avalanche/metachain infra, GCP as code, Cloud Run + Kubernetes for runtime, Dgraph indexers for chain events, and agents plus Spark/Datadog for monitoring.

  Impact

  Lower-friction transactions and a chain stack operators could provision, index, and observe like a real platform—not a weekend fork.

  Node.js · TypeScript · OpenGSN · Avalanche · GCP · Terraform · Kubernetes · Dgraph · Spark · Datadog

• First virtual M-WalletBanco Atlántida’s first M-Wallet: modern APIs against a regulated SAP core.Consultant · Banco Atlántida

  Problem

  Banco Atlántida needed a secure digital wallet beside a century-old banking estate—mobile UX without pretending SAP cores disappeared overnight.

  Approach

  Wallet domain as APIs + data model at the center, Ionic hybrid clients on the edge, Node services for external customer channels, SAP Java on the reliability path, Python analytics for customer/financial insight, Jenkins CI into bank environments.

  Impact

  Shipped the bank’s first M-Wallet—architecture connecting modern mobile/API delivery to regulated core systems.

  Ionic · Node.js · Java · SAP · Jenkins · Python · Pandas

• Remote telemedicine for unconnected zonesTelemedicine architecture for Mosquitia—connectivity as the constraint.Telesan · Mosquitia

  Problem

  Honduras’ Mosquitia region needed remote medical appointments where connectivity and logistics are the constraint—not a polished clinic Wi-Fi assumption.

  Approach

  React/Redux patient surfaces, Node Express + serverless APIs for low-latency ops, AWS Lambda for scalable handlers, schema design for appointment/patient integrity, Python/Pandas analytics, Zoom for real-time consults.

  Impact

  A telemedicine architecture designed for harsh connectivity realities—usable remote care instead of a desktop-only demo.

  React · Redux · Node.js · AWS Lambda · Serverless · Python · Pandas · Zoom

• Global genetic epilepsies platformClinical/genetic research infrastructure with published scientific outcomes.Geness Consortium · Epilepsy research

  Problem

  International epilepsy research led by Dr. Antonio Escueta needed shared clinical/genetic data and classification support—science-grade data integrity, not a CRUD toy.

  Approach

  APIs and patient data modeling, React/Ant Design/Redux research UI, Python statistics services, Rapid Miner models for classification insight, microservices for modular scale—work later reflected in ILAE/AAN abstracts and IEEE CONCAPAN publication.

  Impact

  Research infrastructure that supported clinical and genetic investigation across collaborating teams—and published scientific outcomes beyond commercial SaaS.

  React · Redux · Ant Design · Node.js · Python · Rapid Miner · Microservices