Marcel F
Senior Software Engineer at Stealth Mode
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolMarcel F is a Senior Software Engineer based in Berlin with 11 years of experience building reliable backend systems and distributed algorithms. He has worked across seven organisations—from startups to consultancy—and has a strong track record in GRPC, Go, and designing robust APIs, migrations, and Pub/Sub-style event systems. As a practical full-stack founder, he’s handled product ownership, infrastructure, UX and marketing for his own app, giving him an uncommon blend of technical depth and product sensibility. An active open-source contributor, Marcel has optimized and extended the popular Go utility library lancet with performance-focused refactors and new algorithms like HammingDistance. Colleagues know him for thoughtful architecture decisions and for translating cross-functional requirements into maintainable, production-grade code.
11 years of coding experience
7 years of employment as a software developer
Full Stack Web Developer Nanodegree, Full Stack Web Developer Nanodegree at Udacity
English, German
Stackoverflow
441reputation
15kreached
9answers
9questions
Github Skills (19)
algorithm10
algorithms10
strings10
text-manipulation10
data-structure10
standard-library10
go10
misc-utils10
golang10
data-structures10
functional-programming10
setter6
concurrency6
pointer6
design-patterns6
Programming languages (15)
Github contributions (5)
duke-git/lancet
Dec 2021 - Jul 2022
A comprehensive, efficient, and reusable util function library of Go.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 27 commits, 43 PRs in 7 months
Contributions summary:Marcel has made several contributions to the `lancet` Go utility library, primarily focused on optimizing existing functionality. Their work includes refactoring of slice and string manipulation tools, as well as performance improvements to the datetime and function packages. The user also introduced new functionalities like the HammingDistance function and added a series of functional predicates. The commits reveal a focus on code efficiency and the expansion of the library's utility.
golangkebab-caseutilfunction-libraryreflect
donutloop/httpcache
May 2018 - Dec 2018
An HTTP server that proxies all requests to other HTTP servers and this servers caches all incoming responses objects
Contributions:45 commits, 33 PRs, 28 pushes in 6 months
proxyincomingfiddlerproxieshttpd
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.