Mihai Corețchi

Full-stack engineer at Servicii Complete

Mihai Corețchi

I build web platforms, mobile apps and SaaS products across the whole stack: React and Next.js on the front, NestJS with PostgreSQL or MongoDB behind it, shipped to the cloud.

I care about software that is easy to use and does what the people relying on it actually need. Lately that means microservices, Kubernetes, and AI-assisted development with Claude Code and MCP-based automation.

Get in touch GitHub LinkedIn
Mihai Corețchi in a white shirt against a grey studio backdrop
Chișinău, Moldova
Client products built
9web, mobile and SaaS
Public GitHub repositories
40+going back to 2020
Building for clients since
2022at Servicii Complete
Studying now
MScSoftware Engineering, UTM

01

Experience

Dec 2022 — present

serviciicomplete.md ↗

Full-stack Software Engineer at Servicii Complete SRL

Product and client work across web, mobile and SaaS: online learning platforms, e-commerce storefronts, an internal management system, cross-platform mobile apps, and most recently a SaaS product I designed and built from the ground up.

  • Designed and built Iftamaster, a SaaS that automates IFTA fuel-tax reporting for trucking fleets.
  • Worked on frontend and backend for the Liveclass and Grigo online learning platforms.
  • Built the frontend of a management system for TIREX.
  • Frontend for the keks.md, bonappetit.md and Spartacus e-commerce sites.
  • Shipped cross-platform React Native apps for Alfa Diagnostic and Gotter.

02

Client projects

Products I built or helped build at Servicii Complete.

EdTech · Full-stack

Liveclass & Grigo

Two online learning platforms where I worked on both the frontend and the backend.

  • React
  • Next.js
  • NestJS
  • PostgreSQL
  • MongoDB

Mobile · iOS & Android

Alfa Diagnostic & Gotter

Cross-platform mobile apps built from a single React Native codebase, running smoothly on both iOS and Android.

  • React Native
  • iOS
  • Android

E-commerce · Frontend

Online storefronts

Responsive frontends for keks.md, bonappetit.md and Spartacus, focused on a smooth shopping experience on every screen size.

  • Frontend
  • Responsive UI

Internal tools · Frontend

TIREX management system

The frontend of a management system for TIREX, built to be efficient and easy to use for day-to-day work.

  • React

03

On GitHub

Open code from my own projects and my Master's work: distributed systems, cloud deployments and some machine learning. Everything here links to the repository.

easyesg

In design 2026 · solo

easyesg: sustainability reporting for Moldovan SMEs

A multi-tenant SaaS designed to walk small companies through a VSME sustainability report in Romanian, English and Russian, calculate Scope 1 and 2 emissions, export to PDF and the official EFRAG Excel template, and invoice in line with Moldova's e-Factura mandate. It is currently a complete specification, about 9,000 lines covering 170+ use cases, functional and non-functional requirements, architecture decisions and screen design, ahead of the build.

  • Specification
  • NestJS
  • Next.js
  • PostgreSQL + RLS
  • BullMQ
View repository

DASI

2026 · team of 3

Realtime chat & analytics on microservices

A Next.js 16 client and a NestJS 11 gateway with Socket.IO in front of identity, chat, analytics and notification services that talk over RabbitMQ. CI builds and tests only the services that changed. I started the repo and worked on the client, gateway, identity and analytics services, plus tests and the architecture docs.

  • NestJS
  • Next.js
  • RabbitMQ
  • Socket.IO
  • PostgreSQL
  • MongoDB
View repository

CloudApplication

2026 · solo

A NestJS API on Google Kubernetes Engine

GitHub Actions builds the image, pushes it to Docker Hub and rolls it out to GKE with zero-downtime updates gated by health probes. CPU autoscaling runs between 2 and 5 pods, and PostgreSQL lives in a StatefulSet on a persistent disk.

  • Kubernetes
  • GKE
  • Docker
  • GitHub Actions
  • NestJS
  • PostgreSQL
View repository

MAC

2025 · solo

AWS EC2 management dashboard

Create, list, sync and terminate EC2 instances across AWS regions from one screen. A NestJS API with TypeORM, PostgreSQL and Swagger docs, with React 19 and Vite on the front.

  • AWS SDK
  • NestJS
  • React
  • Vite
  • PostgreSQL
View repository

ASS

2025 · solo

One marketplace, two architectures

The same marketplace (users, products, orders and cached search) built twice in NestJS: as a modular monolith, and as four Dockerised microservices communicating over RabbitMQ, to compare the trade-offs.

  • NestJS
  • Microservices
  • RabbitMQ
  • TypeORM
  • Docker
View repository

PAD

2024 · solo

E-Ticket: a distributed ticket marketplace

Node.js services for users (PostgreSQL, with Socket.IO notifications) and ticket orders (MongoDB), behind an API gateway and a service-discovery service written in C# with ASP.NET Core.

  • Node.js
  • ASP.NET Core
  • C#
  • PostgreSQL
  • MongoDB
View repository

AIA

2026 · team

Predicting La Liga match results

I wrote the exporter that pulls several seasons of data from the football-data.org API into CSV files, plus the multinomial logistic regression and baseline models (Naive Bayes, SVM, random forest).

  • Python
  • pandas
  • scikit-learn
  • Jupyter
View repository

Also on GitHub

  • go2web A command-line HTTP client over raw sockets, with redirects, caching and web search. Python
  • ELSDteam3 A team-built language for geometry: ANTLR grammar, parser and a Python interpreter. Python
  • FLFA Lexer, parser, finite automata and Chomsky normal form conversion. Java
  • TMPS SOLID, and creational, structural and behavioural design patterns. Java
  • TS Test-driven and behaviour-driven development with Jest, Cucumber and Supertest. JavaScript
  • restaurant-site-demo A restaurant landing page, live on GitHub Pages. HTML/CSS
  • magazin-sportiv An early full-stack shop from 2021: React and Redux, with an Express, MongoDB and JWT API. JavaScript
All repositories on GitHub

04

Skills

The stack I reach for first, and the projects on this page where I used it. Project names jump to their cards.

Core stack

Also in my toolbox

Architecture
  • Microservices
  • API gateways
  • RabbitMQ
  • Queue-based pipelines
  • Socket.IO
  • REST & OpenAPI
Data
  • MongoDB
  • MSSQL
  • Redis
  • TypeORM
  • SQL
DevOps
  • Docker
  • Kubernetes
  • GitHub Actions
  • AWS EC2
  • Git
AI & data science
  • Claude Code
  • MCP tool automation
  • Document AI
  • Vertex AI Gemini
  • pandas
  • scikit-learn
More languages
  • JavaScript
  • Python
  • C#
  • Java
  • HTML & CSS
Practices
  • OOP & SOLID
  • Design patterns
  • TDD & BDD
  • Specs & architecture docs

How I work In a team, flexible about the problem in front of me, responsible for what I ship, and happy to help the people around me.

05

Education

  1. 2025 — present

    Technical University of Moldova

    MSc, Software Engineering (English-taught) · Systems and Computer Engineering

  2. 2021 — 2025

    Technical University of Moldova

    BSc, Software Engineering (English-taught) · Systems and Computer Engineering

  3. 2018 — 2021

    Step IT Academy

    Programming course

Languages

Romanian (native) · English (B2)

Outside work

Football, working out, rock music and travelling.

06

Let's build something.

Have a product to build or a team that needs another full-stack engineer? I'd like to hear about it.

mihai.coretchi17@gmail.com