Stefan Schärmeli
Lead Competence Center Requirements-to-Deployment at Die Schweizerische Post
Bern, Bern, Switzerland
Summary
👤
Senior🎓
Top SchoolStefan Schärmeli is a seasoned full-stack engineer and software leader with 15 years of experience, currently leading the Competence Center Requirements-to-Deployment at Swiss Post. He combines hands-on development in .NET, Go, Python and modern frontend stacks with pragmatic delivery leadership, having progressed from developer to manager and security champion roles. Stefan contributes to notable open-source projects such as the official MongoDB Node.js driver and fluent-ffmpeg, demonstrating backend expertise in database drivers and media tooling. Based in Bern, he excels at turning complex requirements into reliable, deployable systems and brings a strong operations mindset from years managing application layers and server environments. Colleagues describe him as adaptive, curious about new technologies, and skilled at balancing practicality with technical exploration.
15 years of coding experience
18 years of employment as a software developer
Eidgenössischer Fachausweis Information Technology, Eidgenössischer Fachausweis Information Technology at gibb Berufsfachschule Bern
German, English
Stackoverflow
13,578reputation
1.2mreached
63answers
5questions
error-handling
top-5%
mongodb
top-5%
documentation
top-5%
mongoose
top-5%
try-catch
top-5%
smtp
top-5%
Github Skills (30)
javascript10
npm10
video-encoding10
admin10
database-administration10
ffmpeg10
mongodb-database10
nodejs10
mongodb10
testing9
socket-io9
mongoose9
smtp9
databases9
error-handling9
Programming languages (11)
Github contributions (5)
fluent-ffmpeg/node-fluent-ffmpeg
Apr 2011 - Jun 2013
A fluent API to FFMPEG (http://www.ffmpeg.org)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:235 commits in 2 years 2 months
Contributions summary:Stefan primarily contributed to the `fluent-ffmpeg/node-fluent-ffmpeg` repository, which is a fluent API for FFMPEG. The commits show the addition and modification of core methods in `lib/fluent-ffmpeg.js` like the addition of `withAudioFrequency()` and implementing auto-calculation for video dimensions. They also added and modified preset files to configure how FFMPEG commands would be run for various cases such as converting to flash video and taking screenshots.
apivideofluentffmpegfluent-api
mongodb/node-mongodb-native
Feb 2011 - Feb 2011
The official MongoDB Node.js driver
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits in 15 days
Contributions summary:Stefan primarily contributed to the core functionality of the MongoDB Node.js driver. They implemented and refined the `mapReduce` function, adding an option to include statistics, and extended the functionality to interact with databases. The user also contributed to tests, adding integration tests for querying embedded documents and non-quoted values. These changes are primarily within the database interaction and testing areas of the driver.
nosqlnode-jsnode-mongodbnode-librarynodejs
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