05/22/2026 updated

**** ******** ****
40 % partially available

Senior Fullstack Software Engineer Java, Kotlin, Scala, Python, TypeScript

Varna, Bulgaria
Only remote
Diplomierter Informatik Ing. FH
Varna, Bulgaria
Only remote
Diplomierter Informatik Ing. FH

Profile attachments

metzger-rico-de.pdf
metzger-rico-en.pdf

About me

Senior Software Engineer mit 20+ Jahren Erfahrung in Backend-, Data- und Fullstack-Systemen. Experte für Java, Kotlin, Python, Go, React und Angular. Fokus auf saubere, wartbare Architektur. Teamorientiert und effizient im Einsatz moderner (AI-)Tools.

Java (Programming Language)JavaScriptAkka (Toolkit)EngineeringGitHubPython (Programming Language)MongoDBOracle ApplicationsSvelteScalaTypeScriptWorkflowsApache CamelBackendKotlinKubernetesCassandraFull Stack DevelopmentApache KafkaFront End Software Development
Programmiersprachen
Java, Kotlin, Scala, Python, TypeScript, JavaScript, Go, Elixir

Backend Frameworks
Spring Boot / Ecosystem, JakartaEE, Apache Camel, Camunda BPM, Elixir Phoenix, Akka

Frontend Frameworks
Angular, React, Svelte, Vue

Datenbanken
PostgreSQL, Oracle, MongoDB, Ontotext GraphDB, Cassandra

Messaging-Systeme
Apache Kafka, RabbitMQ, ActiveMQ

AI Engineering
OpenAI Platform, LangGraph, Model Context Protocol (FastMCP), LangSmith, LangChain, RAG, Vector Databases

AI Developer Experience
Claude Code, Cursor, GitHub Copilot, Tidewave

Cloud & Infrastruktur
AWS, Kubernetes, Docker, GCP, Azure

Experience

Professional experience10+ years
Freelancer since2015

Languages

GermanNative speakerEnglishFluentFrenchBasic knowledge

Certificates

Spring Certified Professional 2024 [v2]

VMware

2024

Confluent Certified Developer for Apache Kafka

Confluent

2024

Scala Functional Programming

Coursera

2016

MongoDB Certified Developer Associate

MongoDB

2015


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