GET/api/v1/projects200 OK · 14ms

Systems that shipped

Enterprise case studies from Jotform-scale infrastructure, plus indie products built solo at DevJoys. Every card opens a full case study — architecture, decisions, and outcomes.

9/9 results
Enterprise Two-Factor Authentication screenshot
enterprise case study200 OK · 400K DAU

Enterprise Two-Factor Authentication

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%
PHPRedisMySQLTOTPDomain-Driven Design
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SMTP OAuth2 Infrastructure Migration screenshot
enterprise case study301 MOVED · zero downtime

SMTP OAuth2 Infrastructure Migration

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
OAuth2PHPQueuesFeature FlagsCanary Rollouts
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Jotform Teams — Multi-Tenant Platform screenshot
enterprise case study200 OK · enterprise

Jotform Teams — Multi-Tenant Platform

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
PHPMySQLRBACMulti-tenancySystem Design
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enterprise case study200 OK · 15–20M users analyzed

Enterprise Growth CRM

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
PHPMySQLElasticsearchData Pipelines
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DroneFleetHQ screenshot
devjoys productLIVE · 8 paying customers

DroneFleetHQ

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
ReactTypeScriptSupabasePostgreSQLLeafletExpo
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Tande screenshot
devjoys productLIVE · iOS App Store

Tande

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 NativeTypeScriptOpenAIClaudeSupabaseExpo
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JuriSpy — Kim Haklı? screenshot
devjoys productLIVE · AI verdicts

JuriSpy — Kim Haklı?

"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
ReactTypeScriptNode.jsOpenAISupabasePWAExpo
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devjoys productIN DEVELOPMENT

MedreseAI

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 54React NativeSupabaseEdge FunctionsOpenAI WhisperNativeWind
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devjoys productIN DEVELOPMENT

Velora

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
ExpoReact NativeSupabasePostgreSQLReanimatedRevenueCatSentry
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