Ulrich Feindt

Backend Developer — Hem Design Studio, Stockholm, Sweden

Feb 2022 – present

As the only backend developer in a small tech team, I am working closely with the digital product manager and frontend developer on maintaining and expanding the online store for this small Swedish design furniture studio.

• The main backend is a Django (Python) app connecting the third-party services, such as Shopify, Microsoft Navision, Airtable, Salesfoce, and Klaviyo.
• Additionally Airtable serves as our Product Information Manager (PIM), for which I develop and maintain automations and extensions (in Javascript).
• Furthermore, I maintain and develop the data pipeline consolidating sales and marketing data in our Data Warehouse in Google BigQuery using Stitch and dbt.

Data/Software Engineer — ValueChecker.net / alaTest.com, Stockholm, Sweden

Mar 2020 – Jan 2022

As a developer at a startup, my work was not confined to a job title. My tasks for ValueChecker, a platform helping insurances finding replacements for claimed items fairly and transparently, included:

• Full stack development for Angular front end with a Python API hosted in Google Cloud, accessing MySQL, Elasticsearch, MongoDB, and Redis.
• Analysis of product data and improvements to the replacement suggestion logic for items that have been discontinued.
• Maintenance and (occasional) development of the legacy code in Python, Java, and PHP for alaTest, a product review platform, that provides additional product data to ValueChecker.

Researcher — Stockholms universitet, Sweden

Aug 2015 – Sep 2019

I studied astrophysical events, e.g. supernova explosions, using irregularly sampled time-series data, both in order to understand individual events and their statistical properties. My responsibilities included both obtaining the data through astronomical observations, and analyzing it using various statistical methods, most commonly model-based regression analyses. Furthermore I developed software to simulate and better plan the observations, coordinated an international scientific work group and co-supervised students at various levels, from Bachelor to PhD.

Visiting Researcher — California Institute of Technology, Pasadena, USA

May 2017 – Sep 2017

During this research visit, I worked on the commissioning of the Zwicky Transient Facility, a project to discover exploding stars throughout the Northern Sky. I contributed to the development of a web application that allows researchers across the globe to access and visualize the telescope data. Additionally, I participated in the discovery of the first optical counterpart to a gravitational wave event, analyzing the telescope data using various theoretical models and regression analyses.

Research Assistant — Humboldt-Universität zu Berlin, Germany

Jun 2014 – Jul 2015

This position was a continuation of my work in Bonn near the end of my PhD program, in which I performed further statistical tests on various astronomical data sets and wrote my thesis.

Research Assistant — Universität Bonn, Germany

Dec 2011 – May 2014

I was responsible for my own independent research in my PhD project, while also contributing to the observations and data analysis of an international collaboration. Additionally, I worked as a teaching assistant for physics and numerics courses for undergrad students.

Laboratory Associate — Yale University, New Haven, USA

Jan 2012 – Mar 2012

During this visit, I helped the La Silla QUEST Supernova Search reduce the number of false positives in the detection process by applying machine learning techniques, mostly boosted decision tree classifiers, to data from the image reduction pipeline.

Dr. rer. nat. (PhD), Physics — Universität Bonn, Gemany

Dec 2011 – Oct 2015

My PhD project focused on the question whether astronomical observations are statistically the same regardless of the direction. For this study, I developed new metrics and hypothesis tests based on time series and spectroscopy of supernova events.

Diplom (MSc), Physics — Universität Bonn, Germany

Oct 2005 – Nov 2011

My studies consisted of courses in physics and mathematics with a specialization in astronomy and theoretical physics in the later years. During the final year of the program I worked on my thesis project on a self-calibrating method for statistical inference that can correct systematic uncertainties.