Saba Tkeshelashvili

An enterprise online assessment platform for creating and delivering tests. As a senior engineer, I developed core back-end services in PHP (Symfony) and Node.js (Express), backed by PostgreSQL and Elasticsearch, with a Svelte front end. I delivered client-requested features across multiple product modules and wrote unit, integration, and end-to-end tests using PHPUnit, Jest, Vitest, and Playwright to ensure reliable releases. The services ran on Kubernetes with Jsonnet-based configuration, and were monitored through Grafana, Datadog, and Dynatrace. I also proposed and rolled out AI-assisted pull request reviews: I wrote the instruction sets that made the AI reviewer apply our coding standards and built a project that orchestrated review rules across every company project, shortening the team's code review feedback loop. I also resolved the platform's open security vulnerabilities, including GitHub Dependabot dependency alerts and Docker image vulnerabilities reported by CAST AI. I also took part in a quarterly two-week production support rotation, investigating client incidents directly with customers and fixing production bugs.

A banner management system for a large-scale gambling company includes all possible advertising types such as static banners, pre-roll video ads, real-time updated banners, marketing emails, marketing SMS, and Facebook ads. This is a platform where customers can create a new banner of any type and send it to website owners to place it on their pages.

Placing Google Analytics code on a website will increase page size and badly affect its performance. To maximize page loading speed, I developed a Google Analytics alternative package written in Laravel that can be used for any website.

After installing the package via Composer, the user gets access to the personal analytics dashboard, which has a set of all possible data filters. Since the package is working in the background, it runs as a queued job and doesn't affect performance. It tracks route visits itself, and there's no need for additional JavaScript files in a website source code.

I created a back-end functionality for a social website that was a combination of Facebook, Kickstarter, and blockchain.

It was a social platform where users could communicate via messenger, share statuses, photos, videos, and startups and their progress, create detailed projects, ask for funding in cryptocurrency, post job openings, and hire people.

An admin panel package for Laravel for creating a dashboard and the whole website.

The user sets up the configuration in the package, including modules and fields each module should have. After running the script, the package generates the whole website structure, such as databases, modules, relationships, resources, controllers, and routing, with its fully functional admin panel.

Developed a comprehensive financial management application that allowed users to record transactions, calculate income, taxes, and expenses, and track finances across multiple currencies with automatic conversions. Implemented automatic expense categorization and generated detailed income and expense statistics based on various criteria.

An affiliate tracking and advertising platform. I built the affiliate-tracking tools that attributed traffic and conversions to partners, developed the advertising platform for managing ad campaigns and placements, and created user-tracking utilities that fed analytics dashboards, providing the business with visibility into campaign and affiliate performance. Built with PHP (Laravel), JavaScript, and MySQL.

A full-featured travel booking platform where customers could search and book hotels, car rentals, and trips. I built it end-to-end as a freelance project, covering the booking flows for each product type, the admin side for managing listings and bookings, and the REST APIs behind the front end. Built with PHP (Laravel), Node.js (AdonisJS), MySQL, and MongoDB.

Custom automation tools built for freelance clients. I developed Telegram bots, built Puppeteer-based web scrapers to collect data from websites, and automated repetitive actions in browsers and back-office workflows. The tools were written in Node.js, PHP, and Go and tailored to each client's use case, replacing manual work with scripts and bots that ran unattended.

An odds comparison platform built as a freelance project. It scraped betting odds from around seven bookmakers for every upcoming football match and showed, in a React front end, which bookmaker offered the best odds for each outcome. The first version of the scraper was written in PHP; I rewrote it in Go to speed up data collection, so odds across all bookmakers and upcoming matches were refreshed much faster.