devjoys product PRIVATE BETA · CONFIDENTIAL PRODUCT
A multi-tenant SaaS platform helping appointment-based businesses manage customer conversations, bookings, automated follow-ups and repeat-customer workflows from one operational system.
Strict tenant isolation, role-based access and auditable operator controls Unified customer conversations across social messaging and web channels AI-assisted replies with knowledge retrieval, credit controls and safety gates Appointment lifecycle, reminders and customer-retention infrastructure Java Spring Boot React TypeScript PostgreSQL Flyway Docker Meta Graph API LLMs RAG
read case study enterprise case study 200 OK · 400K DAU
Designed and implemented a scalable 2FA platform serving 300K–400K daily active users across Jotform’s enterprise and consumer products.
TOTP, SMS, backup codes, and secure authentication flows Distributed PHP services with high availability and fault tolerance SOC 2 and GDPR compliance built in from design 5% → 100% rollout in one month; account takeovers down 10–15% PHP Redis MySQL TOTP Domain-Driven Design
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Web-based gym membership and access platform built around branch-scoped entitlements, global member identity, instructor permissions, and scan-time authorization.
Platform, business, branch, instructor, and member kept as separate domain boundaries Membership scope of a single branch, selected branches, or the whole business Global member identity with phone deduplication across independent gyms Payment method recorded as metadata — card processing and card details stay out Next.js React TypeScript PostgreSQL QR Apple Wallet Google Wallet
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Digital loyalty and retention platform connecting merchant-configured rewards, QR/NFC interactions, wallet passes, and customer reactivation workflows.
Stamp events and reward state kept separate from QR and NFC touchpoints Merchant-configured loyalty program, rewards, and presentation Wallet pass as a representation of loyalty state, not the source of truth Retention segments such as inactivity and proximity to a reward Next.js React TypeScript Supabase PostgreSQL Google Wallet API QR NFC
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Personalized relocation analysis product built around conditional questionnaires, resumable state, structured pathway analysis, and country-specific guidance.
Questions hidden when the profile already answers them Drafts stored by question id, not by list position Resume rebuilds the visible set, then continues at the saved step Informational pathway analysis kept separate from expert handoff Next.js React TypeScript Supabase PostgreSQL LLMs SEO / Dynamic Content
read case study enterprise case study 301 MOVED · zero downtime
Led migration of server-wide SMTP infrastructure to OAuth2-based authentication to comply with Google and Microsoft security standards.
OAuth2 flows for Gmail, Microsoft, and custom SMTP Connection-health detection and fallback delivery Enterprise admin enforcement and configuration Staged, zero-downtime rollout across paid, Teams, and Enterprise OAuth2 PHP Queues Feature Flags Canary Rollouts
read case study enterprise case study 200 OK · enterprise
Core backend architecture for an enterprise-grade collaboration platform with role-based access control and strict data isolation.
Multi-tenant team architecture RBAC system with centralized permission enforcement Ghost-user ownership model for data isolation Supported Global Search and Move-To infrastructure PHP MySQL RBAC Multi-tenancy System Design
read case study enterprise case study 200 OK · 15–20M users analyzed
Internal CRM analyzing behavioral signals across 15–20 million users to surface qualified enterprise leads.
Behavioral signal pipeline across products 4–5 quality enterprise leads per week for sales First-touch time reduced by 20–25% Task orchestration for customer success teams PHP MySQL Elasticsearch Data Pipelines
read case study devjoys product LIVE · 8 paying customers
Complete drone fleet management platform — inventory, missions, crew, and regulatory compliance for professional drone operators.
Fleet inventory with specs, flight history, and maintenance records Interactive mission planning with maps, checklists, and post-mission analysis Crew management with pilot licenses and certifications Compliance document tracking with expiration alerts React TypeScript Supabase PostgreSQL Leaflet Expo
read case study devjoys product LIVE · iOS App Store
AI-powered connection and personal growth app — vibe-based discovery, conversation coaching, and an AI companion for daily reflection.
AI companion with daily reflections and growth coaching Vibe-based discovery prioritizing personality compatibility Three-mode conversation coaching: What to Say, Check Vibe, Level Up End-to-end encrypted messaging with view-once media React Native TypeScript OpenAI Claude Supabase Expo
read case study devjoys product LIVE · AI verdicts
"Who is right?" — an AI judge for everyday disputes. Submit your case, gather testimonies and votes, receive an entertaining AI verdict.
AI-generated verdicts and case summaries over user-submitted disputes Cases with stories, testimonies, evidence, and community votes Appeal flow for contested verdicts Shareable verdict cards built for virality React TypeScript Node.js OpenAI Supabase PWA Expo
read case study devjoys product IN DEVELOPMENT
Gamified Islamic education and ibadah utility app — Duolingo-style learning with AI pronunciation assessment and prayer tools.
Duolingo-style learning across six levels with XP, streaks, and badges AI pronunciation assessment: speech-to-text with similarity scoring Prayer times, Qibla finder, Ramadan mode, dhikr counter Semantic search and AI tutor with citations over content library Expo SDK 54 React Native Supabase Edge Functions OpenAI Whisper NativeWind
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AI-assisted workflow for turning construction and project information into structured quantity and estimation work.
Unstructured project information prepared for quantity and estimation work Generated suggestions held for review before they become quantities User-confirmed quantities kept separate from model output Next.js React TypeScript Supabase PostgreSQL LLMs Three.js IFC DXF PDF
read case study devjoys product IN DEVELOPMENT
Premium self-discovery app for relationship and emotional pattern reflection — dimensional assessments, narrative archetypes, and AI insights.
Psychometric-style quiz engine over a shared question bank Weighted dimensional scoring with reverse-scored items and confidence heuristics Narrative archetype resolution with rule-based mappings Compatibility invites via deep links; premium gating with RevenueCat Expo React Native Supabase PostgreSQL Reanimated RevenueCat Sentry
read case study devjoys product OPEN SOURCE · MIT
Open-source Android app that forwards incoming SMS to an email address you verify with a one-time code. Message text is not stored on the server.
Email sign-in with a one-time code Foreground service that runs while forwarding is on Message text is forwarded without being written to the database React Native TypeScript Kotlin Supabase
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