profile

Adrián Agüero

Fullstack Developer and Indie Creator

About Me

Hello! I am a software engineer with more than 7 years of experience in software development. I consider myself a skilled and very passionate problem solver because, regardless of the complexity or technology used, I focused on building solutions appropriate to the client/user requirements and that are maintainable over time.

During these years I held different roles such as backend developer, fullstack developer, user support. I have accumulated experience in different technologies, both frontend and backend, I have worked in small and large teams. I've run entire initiatives on my own or helped junior co-workers get started. I like to learn and share my knowledge. I believe that teamwork and communication are essential to achieve great things.

I am currently developing my own side project from which I learn many new concepts such as building based on user feedback, releasing high-impact functionalities periodically, etc.

Work Experience

FullStack Developer

G DIGITAL
Mar 2024 - PresentZ

G Digital is a multifaceted company that provides marketing and custom software development services mainly in the e-commerce sector.

Achievements:

  • Add new features systems already in production.
  • Integration with third-party APIs (Bancard, BIMs, etc.).
  • Actively collaborated on the functionalities necessary for production deployment.

Technologies used:

  • RoR 7
  • Stimulus
  • GCP
  • HTML/CSS
  • Javascript
  • Docker
  • Bootstrap 5
  • PostgresSQL 12
  • Bancard API

Ssr Backend Developer

Lemu Global Ltd
Jan 2023 - Jan 2024

Lemu is a UK startup provides conservation services through an app. I contributed to the migration of their backend technological stack, assisted in error correction, and developed new features.

Achievements:

  • Successful migration of the technological stack from CloudFunction to RoR API.
  • Increased test coverage from 0 to 65%.
  • Integration with third-party APIs (Stripe, OpenWeather, Firebase).
  • Actively collaborated on the functionalities necessary for production deployment.
  • Led the initiative for multi-language support.
  • Deployment of the application to production.

Technologies used:

  • RoR 7
  • Stimulus
  • GCP
  • Firestore
  • HTML/CSS
  • Javascript
  • Docker
  • TailwindCSS 3.4
  • PostgresSQL 14
  • Stripe
  • Swagger

Fullstack Developer

Integradevs SA
Jul 2016 - Dec 2022

Integradevs is a software factory for clients from the United States and Paraguay. I collaborated as a full-time software developer on projects of different sizes.

Achievements:

  • Automated installation of test and production environments using Ansible.
  • Deployment of the application to production.
  • Enhancement of metrics in a distributed system by adding OpenTelemetry.
  • Implementation of disaster recovery mechanisms with PostgreSQL [Stream replication].

Technologies used:

  • RoR 4.2
  • JRuby 9.1
  • Linux
  • Ansible
  • Tomcat 8.5
  • PostgreSQL 9.6
  • HTML/CSS
  • JQuery 3

Fullstack Developer (Freelance)

Garnet SRL
Jan 2015 - Jun 2016

I worked as a part-time fullstack developer for a company located in Paraguay that wanted to build a SASS product for small business administration.

Achievements:

  • Deployment of the application to production.
  • Creation of a SASS from scratch.

Technologies used:

  • RoR 6
  • EmberJS
  • PostgreSQL 14
  • Heroku

Projects

Lead Developer

Millionaires
Oct 2023 - Present

Millionaires is my personal project that seeks to become a personal finance advisor. It is a PWA made from scratch in RoR, hosted on AWS, and receives periodic updates based on user feedback. I am in charge of UX and business logic, database and deployment.

Achievements:

  • Authentication with Google Login.
  • Using server-side rendered components.
  • Web scraping for process automation.
  • Use of non-invasive multi-tenant technique.
  • Progressive Web App [PWA] Implementation.
  • Dockerized project, compiled for ARM architecture for EC2 T4 on AWS.
  • Deployed in production environment in AWS.
  • Using secure protocol [https] with reverse proxy server.
  • Using TailwindCss and Stimulus.
  • Integration with OpenAI API.
  • Multi language support.
  • Performance optimization. Minification and gzip compression of assets via proxy.
  • Using Hotwire and Turbo Stream for real time update.

Technologies used:

  • RoR 7
  • Hotwire
  • AWS
  • RDS
  • S3
  • EC2
  • Esbuild
  • TailwindCSS 3.4
  • PostgresSQL 14
  • Caddy Proxy
  • Docker

Skills & Tools

Frontend

  • React
  • EmberJS
  • Stimulus
  • JavaScript
  • HTML/CSS/SASS/LESS
  • TailwindCSS
  • JQuery

Backend

  • Ruby/Rails
  • Java/Spring
  • Javascript/ExpressJS
  • PostgreSQL/MySQL/SQL Server
  • Redis/Mongo/Firestore

Others

  • DevOps
  • Code Review
  • Git/Svn
  • Unit Testing
  • AWS
  • GCP
  • Docker
  • NewRelic
  • Jira
  • Scrum
  • API
  • Stripe

Education

  • BSc in Software Engineering
    Universidad Nacional de Itapúa, Paraguay. [GPA 4.1/5.0]
    Jul 2011 - Oct 2023
  • Recipient of an academic scholarship for exchange program.
    University of Salamanca, Spain.
    Sep 2014 - Jul 2015
  • Recipient of an academic scholarship for exchange program.
    Universidade Federal de Sao Carlos, Brazil.
    Mar 2014 - Jul 2014

Awards

  • Honor Student
    Recognition for Students with high GPA.
  • Champion in the Mathematics Olympiad
    Mar 2009

Language

  • Spanish (Native)
  • English (B1)
  • Portuguese (B1)

Interests

  • CrossFit
  • Cycling
  • Cooking