Bellamy.ai Tech Stack

AI recruitment agent matching candidates to sales roles

Software Development Paris, Île-de-France 2–10 employees Founded 2025 Privately Held

Bellamy.ai is a two-sided marketplace connecting job seekers with sales positions through an AI agent interface. The stack reveals a marketing-operations foundation (Klaviyo, Brevo, Salesforce) layered with modern backend infrastructure (Rails, Node.js/NestJS, PostgreSQL, Redis), and the adoption of Kafka signals a shift toward event-driven architecture to handle message volume at scale. The hiring mix—weighted toward senior engineers with a Tech Lead role—and the pain-point pattern around "scaling for millions of messages" and "large brand onboarding" suggest they're transitioning from a founder-built prototype to a product that can sustain concurrent users and integrations.

Tech Stack 21 technologies

Core StackKlaviyo Salesforce Ruby on Rails PostgreSQL Redis React Shopify Node.js NestJS TypeScript React Native AWS GitLab CI/CD Brevo Adobe Batch WhatsApp WhatsApp Business API RSpec CI/CD

AdoptingKafka

What Bellamy.ai Is Building

◆Challenges

Migrating to event-driven architecture
Improving performance and scalability
Scaling customer success operations
Accommodating large brand accounts
Large brand onboarding
Scaling platform for millions of messages
Scaling product to handle increased volume
Reducing post-production bugs
Improving response times
Improving margin through fare optimization

▲Active Projects

Migration to event-driven architecture
Integrating third-party apis
Multichannel crm strategy implementation
Advanced whatsapp crm exploitation
Account planning
Upsell expansion
Developing key platform features
Core platform feature development

Hiring Activity

Steady7 roles · 3 in 30d

Department

Engineering

Sales

Support

Seniority

Senior

Junior

Lead

Notable leadership hires: Tech Lead

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About Bellamy.ai

Bellamy.ai operates a conversational recruitment platform where job seekers interact with an AI agent to explore sales opportunities and receive job offers. The company targets individuals seeking roles in sales, business development, and sales management, positioning itself as a personal coaching and matching service. Built on Ruby on Rails and Node.js with PostgreSQL and Redis, the platform integrates email (Brevo, Klaviyo), SMS (WhatsApp Business API), and CRM (Salesforce) for multichannel candidate engagement. Current focus areas include scaling message throughput, onboarding enterprise customers, and migrating core infrastructure to event-driven patterns via Kafka.

HeadquartersParis, Île-de-France

Company Size2–10 employees

Founded2025

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does Bellamy.ai use?

Ruby on Rails and Node.js/NestJS for backend, React and React Native for frontend, PostgreSQL and Redis for data, AWS for hosting, Salesforce for CRM, Brevo and Klaviyo for email, and WhatsApp Business API for SMS.

What is Bellamy.ai working on?

Migration to event-driven architecture (via Kafka adoption), scaling WhatsApp CRM capabilities, third-party API integrations, multichannel messaging at scale, and account-based features for large brand customers.