Marvin Krause

Independent Developer & Data Engineer

I deliver high-impact solutions for clients on a project basis — from data migrations and ETL pipelines to scalable distributed backends. My focus: turning complex data challenges into reliable, performant systems without long-term commitments.

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data_pipeline.py

from pyspark.sql import SparkSession
from pyspark.sql.functions import col, udf

# Initialize distributed processing
spark = SparkSession.builder \
    .appName("ETL_Pipeline") \
    .getOrCreate()

# Transform millions of records
df = spark.read.parquet("s3://data/raw/") \
    .filter(col("status") == "active") \
    .repartition(100)

# Optimize & load to warehouse
df.write \
    .mode("overwrite") \
    .saveAsTable("analytics.customers")

$ _

Services

Data Engineering

ETL pipelines, data warehouses, and big data processing with Python, Spark, Hadoop, Airflow, Kafka, SQL/NoSQL.

Backend Development

Distributed systems design with a focus on fault-tolerant, horizontally scalable architectures for massive data processing.

Web Development

Modern web applications using Clojure and cutting-edge frameworks. Interactive applications and API development.

How I Help

Scale Without the Headaches

Build data infrastructure that grows with your business. No re-architecting every six months when volume spikes.

Migrate Without Downtime

Move legacy systems to modern stacks with guaranteed data integrity. Your customers never notice the switch.

Pipelines That Stay Running

Real-time data flows that don't break at 2am. Fault-tolerant systems designed to self-heal.

Cut Infrastructure Costs

Process millions of records efficiently. Optimized systems that do more with fewer resources.

Future-Ready Architecture

100x Less Code.
100x Less Overhead.

I'm pioneering a new approach to backend systems using Clojure and Rama — Red Planet Labs' distributed-first platform. Unified ingestion, processing, storage, and querying in a fraction of the code.

→ Want to build your next project with 100x productivity? Let's talk.

Recent Projects

Data Migration for WordPress E-Commerce

Successfully executed complex data migrations for a WordPress-based e-commerce shop, ensuring zero downtime and data integrity throughout the process.

Clojure Web Development: Human Pose Evaluation

Built an interactive web application for human pose evaluation using Clojure, enabling real-time analysis and visualization of pose data.

Certifications

Big Data Architect Master's

Intellipaat, 2024

Advanced architecture & big data mastery

IBM Data Engineering Professional Certificate

Coursera, 2022

13 courses + Capstone: full data platforms with Spark, Python ETL, databases

IBM People & Soft Skills Specialization

Coursera

Strong collaboration, problem-solving, and client communication

Java Programmer

Hamburger Akademie, 2018

Solid OOP foundation + practical projects

Let's Work Together

Slots Open

I'm open to data engineering tasks, backend development, data science, data migrations, distributed system prototypes, or next-gen architecture explorations.

Send an email contact@mkrause.org Connect on LinkedIn Schedule a 30-min Call