Full-stack developer with 2+ years of proven expertise in TypeScript, CLI development, backend APIs, and enterprise integration platforms. I build production-grade applications with a strong focus on security, developer experience, and operational excellence.

Currently specializing in:

• Enterprise Lead Management Systems — Building scalable B2B platforms with 100+ CLI commands
• AI Agent Frameworks — Designing extensible skill-based architectures
• Enterprise Integrations — Connecting Salesforce, HubSpot, Google, and custom APIs
• Cross-Platform Tools — Shipping CLI applications and Chrome Extensions

B2B Lead Management Platform | npm: leadgenius-cli

• 20 command groups, 100+ commands covering full API surface
• Interactive TUI mode with dropdown pickers and auto-authentication
• Chrome Extension (Manifest V3) with Google OAuth + email sign-in
• Cross-platform binaries for macOS (Intel/ARM), Windows, Linux
• Smart lead search with case-insensitive matching and URL/email auto-detection
• CSV import with auto-header mapping and batch deduplication
• Session persistence — credentials auto-saved to ~/.leadgenius-cli/session.json
• EpsimoAI integration with Cognito token exchange and credit management

Stats: 100+ commits | 2.0.15 version | npm distribution
Tech: TypeScript, Node.js, Commander.js, Inquirer, AWS Cognito, esbuild

📚 Full Documentation

Extensible AI Agent Architecture | Multiple repositories

• Backend services — Scalable Node.js REST APIs
• Frontend dashboard — Interactive React-based UI
• CLI tools — Command-line agent management
• Skill-based architecture — Modular, extensible agent framework
• Agent registry integration — SKILL.md documentation for discovery

Repositories: epsimo-backend, epsimo-frontend, epsimo-cli
Tech: TypeScript, Node.js, React, REST APIs, AWS

• Frontend: TypeScript, React, Chrome Extensions (Manifest V3), HTML/CSS
• Backend: Node.js, TypeScript, REST APIs
• CLI Tools: Commander.js, Inquirer, Table formatting, Interactive TUIs
• Scripting: Python, Bash, automation

• Authentication: AWS Cognito, OAuth 2.0, JWT, Google OAuth
• Cloud: AWS Lambda, DynamoDB, S3, Cognito
• Integrations: Salesforce APIs, HubSpot, Google APIs, custom REST
• DevOps: npm distribution, binary packaging (pkg/esbuild), GitHub Actions
• Databases: DynamoDB, SQL

• REST API design & integration
• Security-first development (authentication, authorization, data validation)
• Cross-platform development (macOS, Windows, Linux)
• Git/GitHub workflow, conventional commits
• CI/CD pipeline management

• 271+ commits in last 24 months (May 2024 - May 2026)
• 30+ active repositories maintained
• 5+ enterprise integrations shipped to production
• 1 npm package published & maintained globally
• 100+ CLI commands implemented across 20 command groups
• 1 Chrome Extension distributed with OAuth flows

✅ v2.0.2 complete CLI rewrite with TUI and Chrome Extension
✅ Implemented cross-tenant security hardening
✅ Published npm package with cross-platform binaries
✅ Built interactive TUI with dropdown pickers
✅ Designed CSV import with auto-detection
✅ Deployed EpsimoAI token exchange flows

• Full Developer CV — Comprehensive 24-month activity overview
• LeadGenius CLI README — 20 command groups, TUI guide, setup
• GitHub Repositories — 30+ projects with detailed documentation

🔒 Security First — Authentication, authorization, data protection, audit trails
⚡ Performance — Optimized APIs, efficient CLI output, batch operations
👤 Developer Experience — Intuitive CLIs, comprehensive docs, smart defaults
🚀 Production Ready — Error handling, monitoring, logging, reliability
🔄 Enterprise Grade — Scalability, multi-tenancy, data integrity

Building enterprise-scale lead management and AI agent frameworks with emphasis on:

• API-first architecture design
• Security-hardened authentication flows
• Interactive user experiences for complex domains
• Seamless third-party integrations
• Production reliability and observability

• GitHub: @thierryteisseire
• Email: t.teisseire@gmail.com
• npm: leadgenius-cli

May 2026:

• Completed comprehensive SKILL.md for AI agent skill registry
• Finalized LeadGenius CLI with all 20 command groups
• Deployed Chrome Extension with OAuth flows
• Published npm package distribution

April 2026:

• Implemented enterprise integrations (Salesforce, HubSpot)
• Shipped soft-delete and data recovery features
• Added admin backup and PITR functionality

March-February 2026:

• Built interactive TUI with dropdown pickers
• Implemented CSV import with auto-detection
• Added session persistence to reduce friction

Last Updated: May 5, 2026
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