Profilbild von Alexander Lechner Data Engineer / Python Entwickler aus Wien

Alexander Lechner


Letztes Update: 06.10.2023

Data Engineer / Python Entwickler

Firma: Alexander Lechner
Abschluss: nicht angegeben
Stunden-/Tagessatz: anzeigen
Sprachkenntnisse: deutsch (Muttersprache) | englisch (verhandlungssicher)




Hi, ich heiße Alex und ich bin Unternehmer & Python Softwareentwickler im Bereich Data Engineering!

Als Unternehmer, habe ich Erfahrungen in Customer-, Business- und Product Development durch meine zwei gegründeten Startups AIKONE & lobi (siehe unten "Projekthistorie") gesammtelt.

Als Softwareentwickler, fokussiere und interessiere ich mich für Data Engineering (Datenbeschaffung und -transformation durch den Aufbau von ETL Pipelines) & Data Science (statistische Analysen, Datenvisualisierung und Computer Vision).

proaktiv: Ich bin die Personifizierung eines Push-Notification Systems.
verlässlich: Ich halte 98% meiner Commitments & Deadlines ein - die restlichen 2% sind deinen Last-Minute-Wünschen und meiner Menschlichkeit geschuldet.
problem- & zielorientiert: Was du willst ≠ was du brauchst. Ich fokussiere mich auf die Definition des Problems und den gewünschten Endzustand (= was du brauchst).


Sieh dir mein Github-Profil an, um dich von meiner Code- und Dokumentationsqualität zu überzeugen:

  • NumPy
  • Pandas
  • Matplotlib
  • scikit-learn
  • OpenCV
  • pydantic
  • poetry
  • luigi
Zusätzlich Programmiersprachen & Frameworks:
  • JavaScript / TypeScript
  • Node.js
  • Nuxt.js / Vue.js
  • VueX
  • React
  • RxJS
  • Socket.IO
  • Dart / Flutter
  • GetX
  • HTML / CSS
  • Docker
  • WordPress
  • Shopify


10/2018 - bis jetzt
Data Engineer & -Scientist, Co-Founder (CTO)
AIKONE - (Konsumgüter und Handel, < 10 Mitarbeiter)

AIKONE is a supply chain service that assists content creators to shift from "brand promoters" to "brand owners" by designing, developing, and producing their sustainable fashion brand.
Industry: Fashion
Project size: Startup (<10 people)
  • Python (pandas, pydantic, poetry, Numpy, scikit-learn, Matplotlib, OpenCV)
  • Dart (Flutter, GetX)
  • JavaScript (Node.js, TypeScript, RxJS, Nuxt.js / Vue.js,, React)
  • RethinkDB
  • Docker
  • Built ETL pipeline to fetch, crop, and remove the background of product images (also from 3rd party APIs).
  • Analyzed the sales performance of our customers and built dashboards for visualizations.
  • Conducted customer interviews to discover their pain points and needs in order to improve our service.
​​​​Business Impact:
  • Grew from 0 to 8 paying customers without any industry know-how or -experience (despite the 1st COVID-19 lockdown).
  • Discovered valuable trade secrets in fashion development, -manufacturing, and -product launches.
  • Achieved a conversion rate of over 1.5% on our customers' first product launch.
  • Reduced our project managers‘ effort by over 20% with internal tools.
  • Facilitated internal workflows for product lifecycle management.

10/2018 - bis jetzt
Data Engineer & -Scientist, Co-Founder (CEO)
lobi - (Sonstiges, < 10 Mitarbeiter)

lobi is a mobile app that assists Uber- and Bolt drivers to earn more money for each ride by predicting customer demand.
Industry: Mobility
Project size: Startup (<10 people)

  • Python (pandas, pydantic, poetry, Numpy, luigi, scikit-learn, Matplotlib, flask)
  • Dart (Flutter, GetX)
  • JavaScript (Node.js, TypeScript, RxJS)
  • RethinkDB
  • Docker


  • Developed a machine learning application for geospatial data analysis.
  • Built ETL pipeline and linked data from independent data sources.
  • Ensured data integrity through cleansing and data validation.
  • Gathered data sets of over 200.000 data points from exclusive partnerships.
  • Developed partnerships and conducted customer interviews to improve the product.
  • Designed and developed the Android and iOS mobile apps.
Business Impact:
  • Grew from 0 to over 200 registered users within 5 months.
  • Acquired our first paying customers despite initial skepticism by the target group.
  • Gained unfair competitive advantage through unique datasets from partners.

04/2023 - 05/2023
Backend Python Developer & Consultant
Gestalt Robotics (Sonstiges, 50-250 Mitarbeiter)

Gestalt Robotics is a technology provider for intelligent industrial automation through robotics applications.
Industry: Robotics
Project size: Mid-size (10 people)
  • Python (poetry, pydantic, NumPy, rospy, OpenCV)
  • ROS (Robot Operating System)
  • Docker
  • ZeroMQ
  • Assisted in conceptualizing and building a Robotics-as-a-Service platform with an SDK for NEOM in Saudi Arabia.
  • Developed a CLI using Python and a CI pipeline to build and publish it as a Python package.
  • Created a method to track objects in images from different angles and perspectives.
  • Conducted in-depth research and analysis on using DDS (Data Distribution Service) as a communication protocol.
  • Proposed and implemented a documentation guideline and structure for company-wide projects.
  • Implemented a method to decode binary ROS messages without the need for ROS as a dependency.
​​​​Business Impact:
  • Decreased code setup time by 87%, from 4 hours to under 30 minutes through improved documentation.

02/2018 - 07/2018
Data Engineer / -Scientist (Internship)
CleverShuttle - (Automobil und Fahrzeugbau, 50-250 Mitarbeiter)

CleverShuttle helps people to get from A to B emission-free with electric- or hydrogen vehicles.
Industry: Ride-Hailing, Ridepooling
Project size: Startup (50 - 250 people)

  • Python (pandas, Numpy, scikit-learn, Matplotlib)
  • Java (Spring Boot)
  • Analyzed geospatial data with machine learning.
  • Achieved a prediction rate of 70% for ride requests.
Business Impact:
  • Pioneered ride demand prediction at the company and helped increase sales through surge pricing.

09/2015 - 12/2017
Web Development Freelancer
Freelancer (Internet und Informationstechnologie, < 10 Mitarbeiter)

I designed and developed aesthetic websites to help my clients stand out from the crowd. My customers included UBS, Sigmund Freud PrivatUniversität Wien, and several other businesses and institutions.
Industry: Various
Project size: Small - Large

  • HTML & CSS
  • Javascript (jQuery)
  • WordPress
  • Developed & administered more than 15 easily maintainable websites.
  • Created unique web designs and customized existing design templates.
Business Impact:
  • Improved the online presence of small and large business owners.

11/2016 - 08/2017
Android App Developer
PlanRadar - (Architektur und Bauwesen, < 10 Mitarbeiter)

PlanRadar is a web- and mobile application that facilitates the defect management process for architects and builders on construction sites.
Industry: Construction
Project size: Startup (<10 people) - Back then I was their first employee and the team was small. Today they have over 400 employees and almost have unicorn status.
  • Java (for Android)
  • Javascript (jQuery)
  • WordPress


  • Built the website and developed the Android application. • Reduced daily app errors by 75% from 40 to 10.
Business Impact:
  • Improved the stability & maintainability of the product.

07/2015 - 08/2015
Web Application Developer (Internship)
Österreichische Post AG (Sonstiges, >10.000 Mitarbeiter)

Österreichische Post AG is Austria's leading logistics and postal service provider.
Industry: Post
Project size: Enterprise (>10.000 people)

  • HTML & CSS
  • JavaScript (jQuery)
  • C#
  • Designed & developed an internal tool for monitoring.
  • Increased report creation to 2.000+ reports per month.
Business Impact:
  • Facilitated the business activity monitoring of stores.


Weltweit verfügbar
Ich erledige den Hauptanteil meiner Arbeit remote. Dennoch bin ich bereit nach vorheriger Absprache und mit berechtigtem Grund temporär vor Ort zum Kunden zu reisen.

Sonstige Angaben

Kontaktiere mich, wenn du glaubst, dass wir gut zusammenpassen! 


Ich freue mich von dir zu hören!
Profilbild von Alexander Lechner Data Engineer / Python Entwickler aus Wien Data Engineer / Python Entwickler