Freelancer profile translated to English.

Description

Back-end developer & HubSpot integrations expert

Automation specialist, n8n & scalable architectures

I help companies connect HubSpot to their ecosystem and automate their processes through tailor-made, reliable, and high-performance integrations.

My expertise covers the entire cycle: from designing robust backend architectures to production deployment on containerized servers, including the orchestration of complex automations with n8n, which I master from end to end.

What I do

• HubSpot Integrations ↔ ERP, SaaS, internal APIs (REST / GraphQL)

• Advanced workflows and automations on n8n (multi-system, supervision, error recovery)

• Custom CRM Cards & HubSpot UI extensions

• Node.js / AdonisJS microservices, PostgreSQL, Docker & RabbitMQ

• MCP server management and supervision: deployment, security, CI/CD, monitoring

• Observability: Sentry, Prometheus, Grafana, Winston

My approach

• Translate business needs into automated and maintainable solutions

• Design high-performance and scalable architectures

• Ensure the reliability of HubSpot integrations and the stability of n8n environments

Stack & key skills

Node.js · AdonisJS · TypeScript · n8n (expert) · REST/GraphQL APIs · OAuth2 · PostgreSQL · HubSpot Automations · Custom CRM Cards · Docker · RabbitMQ · CI/CD · Monitoring (Sentry, Prometheus, Grafana) · Logging (Winston) · Security & DevOps · MCP Servers

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Remote only

Primarily works remotely

Copernic
Backend Developer
January 2023 - July 2025 (2 years and 6 months)
Back-end developer specializing in CRM integrations, automation, and software architecture, with deep expertise in the HubSpot ecosystem.
I assist my clients in creating custom integrations, advanced workflows, and custom cards to extend HubSpot's capabilities, while ensuring the reliability, scalability, and performance of their systems.
I design, develop, and deploy Node.js / AdonisJS microservices, connected to PostgreSQL databases, orchestrated via Docker, and integrated into complete CI/CD pipelines.

Key Skills:
Node.js · AdonisJS · TypeScript/JavaScript · REST & GraphQL APIs · OAuth2 · PostgreSQL · Database Design & Optimization · n8n · HubSpot Workflows & Automations · Custom CRM Cards · HubSpot UI Extensions · Docker · CI/CD · Monitoring (Sentry, Prometheus, Grafana) · Logging (Winston) · RabbitMQ · Microservices Architecture · Security & DevOps

Strengths:
✔️ Expertise in the HubSpot ecosystem (API, workflows, custom cards, complex integrations)
✔️ Design of high-performance and maintainable backend architectures
✔️ Deployment and supervision of containerized environments
✔️ Ability to translate business challenges into scalable and automated technical solutions
HubSpot API Automation n8n Node.js Redis