kevin@silaj:~/portfolio$ whoami

KEVIN SILAJ

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/* Software engineer building and shipping features for a production, multi-tenant SaaS platform across frontend and backend. Comfortable working end-to-end from APIs and data to user-facing UI in large, established codebases — with a modern, AI-augmented workflow that ships fast without compromising quality. */

// about 01
kevin@silaj: ~/about
$ cat profile.json
{
  "name": "Kevin Silaj",
  "role": "Web Developer / Software Engineer",
  "focus": ["clean architecture", "maintainability", "testing"],
  "stack": "Ruby on Rails, full-stack",
  "workflow": "AI-augmented, code-review driven",
  "status": "shipping to production"
}
 
$ # Backed by strong testing and code-review discipline.
$ _
// experience 02
Digital Mobility Solutions GmbH Dec 2021 — Present
Backend Developer
  • Shipped production features end-to-end on a large-scale, multi-tenant SaaS platform — from requirements and implementation through testing, code review, and deployment.
  • Took ownership of features across the stack (backend and frontend), driving them independently from first commit to release.
  • Collaborated closely in a cross-functional team, working through peer code review with senior engineers and incorporating feedback to raise code quality.
  • Wrote and maintained automated tests and followed established quality gates to ship reliable, low-risk changes in a production-critical codebase.
  • Improved and maintained a large existing codebase — refining, refactoring, and removing unused code while adhering to team conventions.
  • Used Claude / Claude Code and LLM tooling to accelerate scaffolding, refactoring, test generation, and documentation while owning architecture and final quality.
Coffee Circle GmbH Jul 2019 — Dec 2019
Intern — Tech Team
  • Supported web design using HTML, CSS, and templating engines such as Smarty and Pug.
  • Helped backend developers with unit testing and assertions for Shopware plugins using PHPUnit.
  • Supported data analysts with quantitative forecasting for future gear sales using Python and procedures such as Facebook Prophet.
  • Implemented Lambda functions and Selenium WebDriver to auto-export data from an API to BigQuery via Google Cloud Functions in Python.
// skills 03
Ruby / Rails
AI-Assisted Dev
Prompt Engineering
Sidekiq / Redis
PostgreSQL
RSpec / Capybara
Selenium
Git / GitHub / GitLab
CI/CD Pipelines
VueJS / ReactJS
Agile / Jira
JSON:API / Graphiti
Stripe API
Python / Django
Sentry
Claude AI / Codex
// education & languages 04

education

B.Sc. Computer Science
Constructor University (fka. Jacobs University Bremen)
Sept 2017 — June 2020

Software Engineering, OOP, Databases & Web Services, plus AI & Intelligent Systems — Machine Learning, Robotics, and Intelligent Mobile Systems — on strong mathematical foundations.

languages

EnglishFluent
ItalianExpert
GermanIntermediate B1
// contact 05
kevin@silaj: ~/contact
$ ./contact.sh --init
[ok] establishing connection...
 
email    => kevinsilaj255@gmail.com
linkedin => /in/kevin-silaj
status   => open to opportunities