Lennart Altenhof - Full Stack Developer, Kubernetes

Recommended expert

Neu-Ulm, Germany

Check rate

Experience

Nov 2023 - Present

2 years 10 months

Freelancer

LA Solutions

IT services
Software development
System administration
Event technology

Apr 2023 - Dec 2025

2 years 9 months

Ulm, Germany

Senior Full Stack Developer

DATATRONiQ GmbH

Project management, architecture design, and quality assurance across various (new) projects
Application evaluations and interviews
Distributed pipeline for aggregating large amounts of data and converting formats
Kubernetes operator for automated management of cluster nodes to eliminate manual node setups
QA tools for existing applications to reduce manual testing and speed up development
Microservices, e.g. a storage proxy
Kubernetes operator for automated resource provisioning that was previously done manually in a time-consuming process
Code reviews

Aug 2021 - Mar 2023

1 year 8 months

Neu-Ulm, Germany

Full Stack Developer

BITE GmbH

Architecture, design, and development of a distributed mail delivery system that can send several thousand emails per second
Development of a chatbot for recruiting applications
Internal tools and various microservices, e.g. for monitoring and other purposes

Aug 2020 - Aug 2021

1 year 1 month

Ulm, Germany

Working Student

Gerling Consulting GmbH

Point of contact for RPA
Development of internal tools
Client presentations and research

Aug 2020 - Apr 2021

9 months

Ulm, Germany

Student Assistant

eXXcellent solutions

Development of a web application with Angular as part of my studies.

Jun 2019 - Sep 2020

1 year 4 months

Neu-Ulm, Germany

Temporary worker

Ecodrom Neu-Ulm GmbH

Assisted with reception, catering, and reservations.

Jan 2014 - Dec 2018

5 years

Nordhorn, Germany

Management

SEG Showtechnik (student company)

Managed operations, organized and conducted events, and led my own working groups.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Professional Services, and Tourism.

Information Technology

Professional Services

Tourism

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Operations, Information Technology, Product Development, Project Management, Quality Assurance, and Customer Service.

Operations

Information Technology

Product Development

Project Management

Quality Assurance

Customer Service

Skills

Office Programs
Video Processing
Event Technology
Angular
Sql
Software Development
Git
Go
Typescript
Fullstack Development
Python
React
Postgresql
Mqtt
Smtp
Kubernetes
Helm
Docker
Containerization

Languages

German

Native

English

Advanced

Education

Oct 2021 - Apr 2024

University of Ulm

Master of Science · Software Engineering · Ulm, Germany · 1.3

Sep 2018 - Oct 2021

University of Ulm

Bachelor of Science · Software Engineering · Ulm, Germany · 1.5

Jan 2013 - Jun 2018

Evangelical High School Nordhorn

High School, general university entrance qualification · Nordhorn, Germany · 1.4

...and 1 more

Certifications & licenses

Certificate: SEG management

German Dance Badge: Bronze

Driver's license: AM

Driver's license: B

Statistics

Experience

Total positions 7

Experience in Information Technology 6 y

Avg length 2 y 1 m

Longest experience 4 y 11 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Freelancer, Senior Full Stack Developer, Full Stack Developer

Main industries Information Technology, Professional Services, Tourism

Main business areas Operations, Information Technology, Product Development

Qualifications

Highest degree Master

Certifications earned 4

Profile

Created

November 2025

Last Update

November 2025

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Frequently asked questions

Have questions? Find more information here.

Lennart is based in Neu-Ulm, Germany and can operate in on-site, hybrid, and remote work models.

Lennart speaks the following languages: German (Native), English (Advanced).

Lennart has at least 12 years of experience. During this time, Lennart has worked in at least 7 different roles and for 7 different companies. The average length of individual experience is 2 years and 9 months. Note that Lennart may not have shared all experience and actually has more experience.

Based on recent experience, Lennart would be well-suited for roles such as: Freelancer, Senior Full Stack Developer, Full Stack Developer.

Lennart's most recent position is Freelancer at LA Solutions.

In recent years, Lennart has worked for LA Solutions, DATATRONiQ GmbH, BITE GmbH, and Gerling Consulting GmbH.

Lennart is most experienced in industries like Information Technology, Professional Services, and Tourism.

Lennart is most experienced in business areas like Operations, Information Technology, and Product Development. Lennart also has some experience in Project Management, Quality Assurance, and Customer Service.

Lennart has recently worked in industries like Information Technology and Professional Services.

Lennart has recently worked in business areas like Information Technology, Product Development, and Operations.

Lennart holds a Master in Software Engineering from University of Ulm and a Bachelor in Software Engineering from University of Ulm.

Lennart has 4 certificates. Among them, these include: Certificate: SEG management, German Dance Badge: Bronze, and Driver's license: AM.

Lennart is immediately available part-time for suitable projects.

Daily Rate Distribution

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<€640 €800-960 €960-1120 €1120+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000

750

500

250

Daily rate avg. 982 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000

750

500

250

Median rate 992 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.