Niels Meierling
Niels Meierling

Niels Meierling

Senior Software Engineer

I design and build scalable cloud architectures, modernize legacy systems, and create enterprise solutions. With 15+ years of experience, I specialize in mainframe-to-cloud migrations, data harmonization across teams and departments, and AI-driven development with graph technologies.

Experience

15+ Years in Software Development

Specialization

Legacy Modernization & AI Development

Email

contact@nielsmeierling.de

Location

Cologne Area, NRW, Germany

About Me

What drives me as an engineer

Customer-Focused Collaboration

I thrive on working closely with customers to understand their challenges and deliver solutions that truly meet their needs. Building strong relationships is at the core of successful projects.

Global Experience

Having collaborated with hundreds of developers across the globe, I bring a diverse perspective to problem-solving and understand how to work effectively in distributed, multicultural teams.

Passionate About AI

I'm constantly exploring the latest technology trends, and I'm currently fascinated by the transformative potential of AI in software development. The possibilities for innovation are endless.

Active Lifestyle

When not coding, I stay active through CrossFit training, volleyball, and motorcycle touring. I also co-manage a youth association focused on parkour, helping young people develop athletic skills and confidence.

Technical Skills

Technologies and tools I work with

Languages

Java Kotlin Scala JavaScript Groovy

Frameworks

Spring Ecosystem Grails Hybris Vaadin AxonIQ ReactJs

Databases

PostgreSQL Neo4j MySQL MongoDB DynamoDB Elasticsearch Solr InfluxDB

Cloud Platforms

AWS Azure

DevOps & Containers

Docker Kubernetes OpenShift Terraform Ansible CloudFormation

CI/CD & Monitoring

GitHub GitLab CI BitBucket/Bamboo Datadog Grafana Instana New Relic

AI Development

Claude Code OpenAI Codex AI-Driven Development

Build systems

Ant Maven Gradle

IDE

Intellij IDEA VisualStudio Code

Work Experience

Highlights of my professional journey in software engineering

2025 - Present

Principal Software Engineer

Mercedes-Benz Tech Innovation GmbH

Analyzing potential improvements to the vast system landscape and reducing friction between customer, teams and external supplier.

2023 - 2025

Senior Software Engineer

Mercedes-Benz Tech Innovation GmbH

Modernizing legacy mainframe systems to cloud-native architecture. Harmonizing data from various source systems into a unified data platform. Improving scalable solutions for enterprise data integration.

2021 - 2023

Senior Software Engineer - Business Platform

Communicode AG (Hörmann)

Migrated legacy Excel and macro-based business tools to a modern Kubernetes-based microservices architecture, improving scalability and maintainability.

2021

Senior Software Engineer - Digital Marketing Suite

Communicode AG (LIDL)

Optimized upload portal performance for 3D-based marketing assets serving the European market.

2020 - 2021

Senior Software Engineer - PIM System

Communicode AG (infuniq)

Maintained legacy product information management system while designing next-generation cloud-native architecture.

2016 - 2020

Cloud Engineer - Digital Ecosystem

Communicode AG (Vorwerk)

Designed and built pipeline automations for various teams to ensure quality and speed of changes for the existing environment. Consulted on integration with the ecosystem's business processes across the organization.

2015 - 2018

Component Lead - Digital Ecosystem

Communicode AG (Vorwerk)

Designed and built microservices around the e-commerce monolith for customer data management in AWS. I represented up to 3 teams in an environment of approx. 15 international teams.

2013 - 2015

Software Engineer - Digital Ecosystem

Communicode AG (Vorwerk)

Built a large e-commerce backend system for mulit-platform touchpoints and surrounding customer service tooling and processes for connected home appliances (TM5/TM6) in Europe's largest IOT project.

2012 - 2013

Software Developer

R&E Media GmbH, Cologne

Maintained software distribution portal and built coupon systems.

2009 - 2012

Junior Software Developer

MetaSieve GmbH, Bochum

Learned programming at a university startup. Built order management systems for Unity Media.

Education

Academic background and certifications

2008 - 2012

B.Sc. Applied Computer Science

Ruhr University Bochum

2005 - 2008

IT Specialist - System Integration

ServeNet GmbH, Wuppertal

2005

Abitur

Röntgen Gymnasium
Math / English Focus

Let's Work Together

I'm available for new projects and opportunities. Feel free to reach out.

contact@nielsmeierling.de