Jacopo Carta
Full-Stack Engineer
Building and scaling a SaaS platform for a resellers community, used by 1,700+ users across Europe. I own the system end-to-end, from product decisions to backend and frontend architecture.
Core Stack
Next.js
TypeScript
MongoDB
Tailwind
VercelABOUT
Who am I
I'm Jacopo Carta, a full-stack engineer focused on building SaaS platforms and custom web applications used on production. I've been shipping real products since 2022 .
With a strong QA background I care about the product as a whole. Every feature I ship is driven by real user feedback and continuously tested, monitored and iterated based on real world usage.
Experience
WTB Market
2022 - CurrentFounding Full-Stack Engineer
Built and scaled the full architecture from scratch as the sole developer, owning the system end-to-end. Continuously shipping and iterating features based on real user feedback using Next.js, Node.js and MongoDB.
The platform helps 1,700+ paying users across Europe, supporting a business with ~€10k MRR, achieving 240k+ unique visitors and 800k+ page views annually.
Applause
2025 - April 2026QA Engineer
Working on structured test cycles for international brands. Responsible for test case design, full regression coverage, bug reporting via Jira and direct communication with product teams in Agile environments.
uTest
2023 - 2025Freelance QA Tester / Test Lead
Covered manual, regression and payment flow testing across 400+ products and 2,000+ test cases. Reached top 2% testers of the platform. Promoted to Test Lead after a year. Handled bug triage, tester coordination and end-of-cycle reporting.
Freelance Developer
2020 - 2022Node.js Developer
Developed scraping and monitoring tools for tracking stock across major e-commerce platforms. Built automated workflows and notifications via Discord integrations, laying the foundations for WTB Market.
PROJECTS
WTB Market
SaaS platform for a reseller community, used to manage inventory, automate workflows and support daily operations.
Lab19
Internal dashboard for a Shopify business, managing operations and real-time pricing workflows based on market data.
TECH & SKILLS
- Next.JS
- TypeScript
- Tailwind CSS
Express
PostgreSQL
Prisma
- Vercel
Cloudflare
Caddy
Postman
Jest
Playwright
QA Background
Strong QA background with experience across 400+ products and 2,000+ test cases. Solid experience in writing test cases and Agile methodologies.
I integrate testing directly into development to ensure reliability, with API testing, expanding into Jest and Playwright for automated testing and coverage.
How I work
01. Architecture
Defining requirements, data models and finding technical challenges early.
02. Frontend
Build performant, accessible UIs designed for real-world usage across devices.
03. Backend & APIs
Implement scalable APIs, authentication, business logic and data pipelines.
04. Testing
End-to-end coverage, API and regression testing before releasing.
05. Deploy
Manage multiple environments, using Vercel, Cloudflare or self-hosted solutions.
06. Monitoring
Analytics, error tracking, logs and real user feedbacks to evaluate next steps.
LET'S GET IN TOUCH
Location
Liguria, Italy.