Marc Püls
Backend Software Engineer
Barcelona
Summary
Dedicated and results-driven software backend engineer with 9 years of experience. Proficient in Python and Golang. Skilled in utilizing AWS, Postgres, Apache Spark, and Kafka to build resilient and scalable backend systems. Excels in fostering a shared understanding within teams to effectively accomplish technical objectives.
Overview
9
9
years of professional experience
Work History
Full Stack Software Engineer (Sabbatical)
None
Barcelona
12.2022 - 05.2023
- Developed app to generate personalized avatars of users using Flutter, Google Firebase, and Stable Diffusion.
- Developed dream interpretation app using Flutter, Google Firebase, and ChatGPT. Performed user testing to improve usability. App is published on Google Play Store.
Software Backend Engineer
i2x
Berlin
09.2021 - 11.2022
- Coordinated team efforts and enhanced communication by presenting and updating a comprehensive diagram during daily stand-ups, resulting in improved understanding of project scope and facilitating efficient task allocation in different microservices.
- Created and presented a proposal regarding introduction of automatic regression tests of logic in db layer in microservices in front of team of architects.
- Supported junior software engineer with his development tasks.
- Extracted part of a system into a microservice. Ask me how I minimized the risk of regressions!
- Implemented shared CORS library to be used in middleware of our microservices.
- Introduced tooling for defined db schema migrations and applied it to dev and prod.
- Created diagram of landscape of microservices using Structurizr (Diagrams as Code 2.0).
Senior Software Backend Engineer
Yoyo Labs
Berlin
10.2018 - 08.2021
- Help companies tackle their big data processing challenges.
- Project 1: Migrate client's reporting system from Perl and Postgresql to Apache Spark (Python) and Parquet on S3. Reduced creation time of monthly reports from 3 days to several hours.
- Project 2: Migrate client's data processing pipeline implemented in Java to pipeline of Apache Spark applications communicating via Kafka running on Kubernetes.
CTO and Co-Founder
MinuteHero
Hamburg
10.2016 - 09.2018
- Product: AI that creates and sends you the meeting minutes of a team phone call
- Co-founder and I iteratively adapted product features based on users' wishes and technical feasibility
- Conducted experiments to estimate the word error rate of commercially available speech-to-text systems in real-world team phone calls with different English accents
- I implemented a prototype of the product using Python, CMU Sphinx, and AWS
Software Backend Engineer
RTB
Bad Lippspringe
06.2014 - 09.2016
- Part of a team that developed a data processing system for car traffic data captured by automatic car traffic counting devices
- Implemented logic in stored procedures in PL/pgSQL on Postgresql for maximum efficiency
- Used Visual Studio, C#, .NET, Postgresql, Python, and PowerShell
Education
Diplom-Ingenieur - Engineering Informatics (Electrical Engineering)
Paderborn University
Paderborn 10.2004 - 05.2014
Skills
Agile
undefinedWork Availability
monday
tuesday
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friday
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sunday
morning
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evening
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Quote
All models are wrong, but some are useful.
George Box
Timeline
Full Stack Software Engineer (Sabbatical)
None
12.2022 - 05.2023
Software Backend Engineer
i2x
09.2021 - 11.2022
Senior Software Backend Engineer
Yoyo Labs
10.2018 - 08.2021
CTO and Co-Founder
MinuteHero
10.2016 - 09.2018
Software Backend Engineer
RTB
06.2014 - 09.2016
Diplom-Ingenieur - Engineering Informatics (Electrical Engineering)
Paderborn University
10.2004 - 05.2014
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