Daniel Samer - Full Stack Developer CV and Resume
Daniel Samer

CV & Resume

10+ years building Rails applications. Developer, builder, problem-solver.

# About

Full-stack developer. 10+ years of Rails. I build web applications from scratch. Blockchain, real-time systems, AI automation.

Shipped platforms serving millions of users. Managed large communities. Built production systems that run for years with minimal maintenance. Right now I'm focused on Claude AI integration and content pipelines.

# Experience

Senior Rails Backend Developer

Apr 2025 – Present

Linkster GmbH, Essen

Backend dev and LLM integration for influencer marketing platform. AI features and automation with Claude API.

Ruby on Rails Claude AI LLM Integration PostgreSQL

Solo Founder

2022 – Present

Golemoverlord.com / Splex.GG

Full-stack for blockchain gaming. 164 database models, 174 Sidekiq workers. Token economics, NFTs, community management. 4,000+ Discord members.

Ruby on Rails Hive Blockchain MySQL Sidekiq ActionCable

Senior Backend Developer

2021 – 2022

Seatback GmbH

API development and backend architecture for parking management platform.

Java REST APIs

Full Stack Developer

2018 – 2020

Stockpulse GmbH

API development, server maintenance, consumer portal for stock market sentiment analysis, WordPress widgets.

Python JavaScript PHP

Solo Founder

2016 – 2020

RLTracker.pro

Built Rocket League trading platform from scratch. 2.4M+ trades tracked, 17,500+ scammers catalogued. 8,000+ Discord servers ran our bot.

Ruby on Rails MySQL WebSockets REST API

Junior Rails Developer

2017

evopark

Backend development for parking management platform.

Ruby on Rails

# Projects

# Education

2014 – 2017

IT Specialist for Application Development

nedeco, Aachen

2011 – 2012

Computer Science (not completed)

RWTH Aachen University

2003 – 2010

Abitur (A Levels)

Erich-Kästner-Gesamtschule, Homberg

# Skills

// Expert

Ruby on Rails JavaScript MySQL PostgreSQL HTML/CSS Tailwind CSS

// Strong

Blockchain (Hive) SEO Java Python Redis Sidekiq Linux/Unix Git

// Current Focus

Claude AI LLM Integration AI Content Generation Vector Databases

# Languages

German (Native)
English (Fluent)

# Interests

Weightlifting Cycling Cooking Astronomy Building side projects