Marco Mariani
Senior Software Engineer at CrowdSec
Greater Paris Metropolitan Region France
Summary
🤩
RockstarMarco Mariani is a Senior Software Engineer based in the Greater Paris area with over 20 years of hands-on experience and four years in his current senior role at CrowdSec. He combines deep backend expertise in Go with a longtime background in systems, DevOps and cloud orchestration, having built and operated production Kubernetes, OpenStack and multi-cluster billing/monitoring platforms. At CrowdSec he contributed meaningful refactors and reliability fixes to a prominent open-source crowdsourced security project, improving API client semantics, error handling and database interactions. Marco’s career spans everything from low-level system automation and PKI extensions to large web applications and ETL pipelines, reflecting a pragmatic full-stack systems mindset. He often gravitates to thorny integration and observability problems, turning legacy complexity into maintainable, instrumented services. A childhood hobby of writing his own games hints at a long-standing appetite for hands-on problem solving and building things from first principles.
4 years of coding experience
24 years of employment as a software developer
Italian, English, French
Stackoverflow
13,646reputation
1.5mreached
154answers
5questions
sql
top-5%
postgresql
top-5%
python-sphinx
top-5%
python
top-5%
Github Skills (20)
refactor10
go10
error-handling10
refactoring10
postgresql9
python9
apidoc9
python-sphinx9
sql9
api9
logging9
database8
databases8
database-api8
xml6
Programming languages (10)
Github contributions (5)
crowdsecurity/crowdsec
Oct 2021 - Jan 2023
CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.
Role in this project:
Backend Developer
Backend DeveloperContributions:5 releases, 211 reviews, 276 commits in 1 year 3 months
Contributions summary:Marco focused on improving the codebase through refactoring and bug fixing, particularly within the metabase API client and its interactions with the database. They were responsible for renaming an API client to avoid confusion, rewriting error handling and logging throughout various modules, and fixing code related to handling data. The user's contributions demonstrate expertise in Go and familiarity with the CrowdSec project's architecture.
protectadaptedipsctiintrusion-detection
crowdsecurity/pfSense-pkg-crowdsec
Aug 2023 - Mar 2025
Contributions:18 releases, 18 reviews, 42 PRs in 1 year 8 months
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