$ whoami

Gianluca Sestito

Role: Backend Team Lead

Base: Milan, IT

I architect backend systems that never break. Currently orchestrating platforms across 67 global markets with sub-100ms latency at scale.

0+ Markets
0x Traffic Resilience
0ms P99 Latency
Let's Build → View Work

Featured Work

01
AI-Powered Agentic Workflows

CV AI Enhancer

AI-powered resume optimization using agentic workflows. Automated background LLM orchestration for intelligent CV tailoring.

  • 85%+ job match accuracy
  • 60% time reduction
Next.js Mastra AI Supabase TypeScript Trigger.dev
View on GitHub ↗ 
// Agentic workflow orchestration
const agent = await mastra
  .createAgent({
    model: 'claude-3',
    tools: [cvAnalyzer, jobMatcher]
  });

await agent.execute(workflow);
02
Event-Driven Microservices

Resilient Order Saga

Production-ready microservices with Saga pattern choreography. Event-driven architecture via Kafka with transactional outbox pattern.

  • 3 microservices
  • Transactional outbox pattern
  • Compensation flows
NestJS Kafka PostgreSQL Redis Prisma Docker
View on GitHub ↗
Order
→
Kafka
→
Inventory
Compensation

Experience

Atoms

Current
2023 — Present

Backend Team Lead

Global Content Pipeline

Architected high-availability backend synchronizing content across 67 global markets with <100ms API latency for 100k+ assets.

67 locales 10x resilience 100% uptime

Agentic AI SDLC

Pioneered AI workflows automating PR reviews, documentation, and BI extraction. Integrated AI agents into CI/CD pipelines.

30% overhead reduction 3x feature velocity

NTT DATA

2023

Backend & Reliability Engineer

Financial Integrity Systems

Optimized 150+ Java packages for provincial welfare calculations with zero-error tolerance. 100% data integrity for regional welfare.

Regulatory Compliance

Implemented audit logging and data validation pipelines ensuring compliance with Italian public administration standards.

GFT Technologies

2019 — 2023

Cloud Backend Engineer

Cloud Migration & Microservices

Led containerization of legacy monoliths to GKE. Tripled deployment frequency via CI/CD automation with 40% reduction in regressions.

Banking & Insurance Platforms

Developed backend services for major Italian banks and insurance companies. Built event-driven integrations handling thousands of daily transactions.

Expertise

Agentic AI

LLM Orchestration, Prompt Engineering, CI/CD Integration, Automated Workflows

Building intelligent automation systems with AI agents that streamline development workflows and enhance productivity.

Core

High-Performance APIs

Node.js, TypeScript, PHP (Laravel), Java (Spring), REST/GraphQL

Architecting scalable backend systems with sub-100ms latency, handling millions of requests with zero downtime.

Core

Multi-Cloud

GCP (Certified ACE), AWS, Kubernetes, Docker, Terraform

Deploying and managing cloud infrastructure across multiple providers with infrastructure-as-code practices.

Proficient

Data & Caching

Redis, PostgreSQL, Elasticsearch, Pub/Sub, Supabase

Designing high-performance data layers with intelligent caching strategies for optimal query performance.

Proficient

Identity & Auth

Auth0, OAuth2, OIDC

Implementing secure authentication and authorization flows for enterprise applications.

Frontend

Vue, Nuxt, React, Next.js

Building modern, responsive interfaces with component-driven architecture and optimal UX.

Languages:
Italian Native English Professional German Proficient Japanese Learning

Contact

Need a backend that scales? I'm available for consulting and full-time opportunities.

@ Email gianluca.sestito93@gmail.com → in LinkedIn Connect with me ↗ </> GitHub View my code ↗