Antonio S.

About Me

Proficient Software Engineer with 10+ years of experience focused primarily on backend development with hands-on experience in DevOps. Antonio was involved in leading projects with 100k+ unique active monthly users and founded two SaaS applications. He is highly-adaptable in different roles and strives to make things easily-maintained and reusable while meeting project goals and leading teams to success.

Frontend

Backend

Database

DevOps

Workflow

Other

Work history

UpStack
UpStack
Senior Software Engineer
2020 - Present (5 years)
Remote
  • Create and develop innovative software solutions for different clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware.

  • Ensure that features are being delivered efficiently and on-time.

Amodo
Amodo
Lead DevOps Engineer
2020 - 2020
Remote
  • Designed, developed, and maintained an infrastructure where each component can scale easily. Ensured high availability of platforms and systems according to SLAs.

  • Maintained and improved Ansible repo used for automation and CI/CD using Jenkins.

  • Defined, implemented, maintained, and improved backup and disaster recovery procedure. Mentored and trained engineering team members throughout the company.

SpareParts
SpareParts
Co-Founder & FullStack Developer
2018 - 2020 (2 years)
Remote
  • Optimized infrastructure costs by planning and developing the app architecture in a way so that a number of scrapers are scaled programmatically, through an admin interface or automatically behind the scenes depending on the application load.

  • Implemented unit tests for the backend using Mocha and Chai, as well as set up monitoring using Prometheus and Grafana.

  • Used Ansible and Docker for automation and easier deployments. Developed frontend dashboards using ReactJS, Redux, Saa, and backend/APIs using NodeJS, Koa, Typescript, MongoDB, Docker.

Amodo
Amodo
Senior Software Engineer
2017 - 2020 (3 years)
Remote
  • Performed the design, development, optimization, and maintenance of DRF APIs with over 120k+ lines of Django code and 350+ Django model.

  • Implemented billing system and developed multiple payment gateway integration.

  • Applied best coding practices, to write clean, reusable and future-proof code, covered with unit tests.

AdSignal
AdSignal
Founder & FullStack Developer
2016 - 2020 (4 years)
Remote
  • Acted as Sole developer in building the application; created the backend and APIs using Laravel, Mysql, Docker, and Redis. Developed the frontend dashboard using VueJS and SaaS.

  • Planned and developed the app architecture to scrape an average of 40 sites every minute while at the same time keeping infrastructure costs low.

  • Implemented various payment gateways over time including SecurionPay and 2Checkout.

Cackalo
Cackalo
FullStack Developer
2015 - 2017 (2 years)
Croatia
  • Managed to create and execute a cloud infrastructure to handle over 200k sessions a day and millions of daily page views.

  • Introduced and implemented load balancing, DB replication, caching, file storage, and a robust backup for both database and uploaded media files.

  • Succeeded in bringing the website to 2nd most visited classified ads website in Croatia during my time there.

Freelancer
Freelancer
Software Engineer
2013 - 2017 (4 years)
Remote
  • Worked on the development of various websites, web applications, web stores, WordPress/Joomla/Drupal sites, stateful and stateless landing pages, etc.

  • Developed an Open source scaffolding Web Application for managing a car rental business, using Laravel and AngularJS.

  • Closely collaborated with client, creative, and development teams to create and optimize interactive, user-friendly, and feature-rich websites.

Showcase

Co-Founder & FullStack Developer - SpareParts
Co-Founder & FullStack Developer - SpareParts
  • Developed a Web App (SaaS) to scrape truck and car spare parts prices and information from various stores.

  • Implemented a scalable infrastructure architecture using Ansible and Docker for automated deployment and programmatically scaling scrapers.

  • Created frontend dashboards using ReactJS, Redux, Saa, and backend/APIs with NodeJS, Koa, TypeScript, Python, and MongoDB.

Founder & FullStack Developer - AdSignal
Founder & FullStack Developer - AdSignal
  • Developed a Web App (SaaS) that tracks car classified websites.

  • Created a backend and APIs using Laravel, MySQL, Docker, and Redis.

  • Built a frontend dashboard using VueJS and SaaS.

FullStack Developer - Cackalo
FullStack Developer - Cackalo
  • Largest classified ads website in Croatia with over 20,000 daily unique visitors.

  • Successfully built and managed a cloud infrastructure to handle over 200,000 sessions daily and millions of page views.

  • Implemented key technologies including load balancing, database replication, caching, file storage, and robust backup solutions.

Software Developer - Koferi
Software Developer - Koferi
  • Developed a niche web-store focused on luggage/travel bags.

  • Integrated data from various back-end services and databases.

  • Created the website layout and user interface using standard practices and technologies: VueJS, Vuex, Webpack.

Education

Bachelor of Engineering in Information Technology
Bachelor of Engineering in Information Technology
Zagreb University of Applied Sciences