Java 21: What Actually Matters (And What Doesn't)
After spending way too much time with Java 21's new features, here's what actually changed my day-to-day coding and what's just marketing fluff.
Software Engineer for your IT project - Raul Lugo
Experienced Full-Stack Developer with a background in both Software Development and Electrical Engineering. Technologically driven, eager to learn and equipped with a wide range of problem-solving skills. Seeking opportunities to utilize and expand my technical expertise.
Currently fully booked
Projects as a Freelance Software Engineer
Energy Systems Whitelabeling Platform
Development of a platform for B2C customers to connect their energy systems in the 'Future Energy Home' transformation project. Backend development for whitelabeling E.ON applications. Implementation of serverless backend architectures with AWS Lambda and API Gateway, infrastructure as code with AWS CDK.
Automated Marketing Campaign Solution
Design, implementation and delivery of an automated solution for an advertising agency to optimize their daily processes. Independent development of backend and frontend application. Integration of external APIs for CRM SaaS and gender identification service enabling highly personalized campaign emails.
E-Commerce Modernization with SvelteKit
Development of an online store transforming the Wordpress-based frontend into a standalone SvelteKit application. Transformation of all frontend components, GraphQL connection with Wordpress and WooCommerce. Development of a synchronization application for product information between four systems.
Multi-Tenancy System for Football Clubs
Independent development of a multi-tenancy system for football clubs to manage material administration and penalty catalog. Made all architectural and technical decisions. Fullstack development including backend, frontend, testing, containerization and deployment. Multi-tenancy structure enabling simultaneous use by different clubs.
Full-Time Employments as a Software Engineer
Senior Software Developer
Lead developer with focus on agile fullstack development in the O2 online store. Developed standalone systems and proof of concepts for IT transformation. Implementation of micro frontends and backend for frontend for platform optimization.
Cloud Architect
As a cloud architect at Deloitte, I designed Smartfactory 4.0 based on AWS IoT. Main focus: Requirements management, key user training, business logic with AWS Lambda, ETL with AWS DataPipeline. Implementation of CI/CD with GitHub Actions, network and cloud resources using Terraform.
Junior Software Developer
Fullstack development of LockBook Draw for the client ABS Safety GmbH, focus on API with NestJS, GraphQL, MySQL. Docker for frontend and backend isolation, AWS cloud deployment, CI/CD pipeline. Design and implementation of network and cloud resources with Terraform (IaC).
Proficient with technologies and frameworks as a Software Engineer
Backend
Spring Boot
NestJS
MySQL
Mongo DB
PostgreSQL
GraphQL
Prisma
Frontend
React
Redux
HTML 5
CSS
Next.js
Vue.js
DevOps
Terraform
Travis CI
GitHub Actions
Docker
Mobile Development
Dart
Flutter
Cloud
Amazon AWS
Google Firebase
Blog Posts
Next.js App Router: My Real Experience With The Routing Revolution
An honest deep-dive into the Next.js App Router after months of actually using it in production. What works, what doesn't, and whether you should migrate your existing apps.
Exploring the Bash Fork Bomb: A Dangerous Piece of Code
Dive into the history and workings of the notorious Bash fork bomb :(){ :|:& };: and see how similar concepts are implemented in other programming languages.
Matdienst: How I Fixed My Football Club's Chaos Problem
I got tired of watching my amateur football club fumble basic organization, so I built a web app that actually works. Here's how a Raspberry Pi and some decent architecture solved our material management nightmare.
Domain-Driven Design: What I Wish Someone Told Me
My honest take on DDD after using it in production for years. When it's worth the pain, when it's not, and what actually matters.