# Ben (AngryDutchman) (@angrydutchman.eurosky.social)

Profile: https://sifa.id/p/angrydutchman.eurosky.social
Headline: Ingenieur R&D/DevOps/ITsec/Perl guy

## About

I'm one of those slightly strange fellows who write their software in Perl, this however does not make me a dinosaur. I'll be happy to explain why!

I also do a lot of devops engineering, infrastructure design, IT security audits, and a lot more!

## Experience

- **Ingenieur R&D/Devops at OpenCaps** (2024 – 2026)
  Responsible for maintaining dedicated server park, cloud infrastructure, security policies, edge devices, and day to day operations, as well as writing copious amounts of sofware in Perl and other languages.
  
  Key technologies:
  \- Ansible
  \- Docker
  \- HashiCorp Consul
  \- HashiCorp Nomad
  \- HashiCorp Vault
  \- Perl
  \- Go
- **Owner at Blockstackers** (2022 – 2023)
  Freelance devops engineer/systems architect
- **Ingenieur R&D - DevOps at Ubiant** (2017 – 2022)
  Responsible for maintaining server park, security policies, and day to day operations.
  
  Key technologies:
  \- Elastic stack (Elasticsearch, Beats)
  \- Graylog
  \- Ansible
  \- Docker
  \- HashiCorp Consul
  \- HashiCorp Nomad
  \- HashiCorp Vault
- **Senior Backend Developer Perl at travel audience GmbH - An Amadeus Company** (2015 – 2017)
  Writing copious amounts of Perl
- **Owner at Blockstackers** (2013 – 2015)
  \- Freelance Perl development
  \- IT consulting
  \- System administration on *nix systems
  \- Code audits
  \- Security assessments
  \- Developer sourcing
- **Sales Engineer at Xynexis** (2014 – 2015)
  \- Responsible for pursuing sales leads and offering technical insight into (potential) client issues
  \- Marketing activities such as newsletter writing, event organisation
  \- Account management for existing clients
- **Consultant at Xynexis** (2014 – 2014)
  \- Performing penetration tests using tools such as Nexpose, Backtrack and custom built tools
  \- Performing code audits (Java, Perl, Python)
  \- Delivering training classes relating to security, such as developing secure web applications, server hardening, network monitoring etc.
  \- Presenting finding reports to clients
- **Owner at XiriNET** (2009 – 2013)
  \- Freelance Perl development
  \- IT consulting
  \- System administration on *nix systems
  \- Code audits
  \- Security assessments
  \- Developer sourcing
- **Developer at PT Bellua Asia Pacific** (2007 – 2009)
  \- Developing web applications using Perl (Catalyst) and Python (Django)
  \- Product development
  \- Managing a small team of developers
  \- Performing penetration tests
  \- Performing code audits
  \- Network design
  \- System architecture design
- **Senior Systems Administrator at Hostnet BV** (2006 – 2007)
  Taking care of the day to day operation of a medium sized webhost and server park. Responsible for migrating to our own suite, network architecture. Wrote various applications to better integrate our "paperless office" policy with our backends. Built anti-spam cluster for incoming mail, policy throttling setup for outgoing mail, high availability clustering for DNS, MySQL replication, custom package build and deployment system for Virtuozzo hosted VPS's, and solving any problems that got bounced up to our little department.
- **Perl Developer at Golden Bytes** (2005 – 2005)
  Develop SMS driven applications in Perl using Golden Bytes' own framework
- **Perl Developer at TTY Internet Solutions** (2003 – 2004)
  Development and maintenance on various web applications
- **Guy in charge at Bearded Dutchman Services** (2026 – present)
  A rather weird amalgamation of "plain" IT services such as:
  
  \- Devops engineering
  \- Infrastructure design and implementation
  \- Perl and Go code
  
  Combined with a dash of marine industry things such as:
  
  \- Boat IT 
  \- DIY instruments
  \- DIY lithium pack builds
  \- (inland) delivery captain
  \- post-purchase familiarization courses
  
  And more...

## Education

- **Hogeschool Utrecht** — BS (1996 – 1997)
- **Scala College** — HAVO (1990 – 1995)

## Skills

- HTML5
- OWASP
- Code Review
- MySQL
- Python
- Web Services
- ISO 27001
- PostgreSQL
- Scalability
- Security
- Network Administration
- Nginx
- Network Security
- MongoDB
- System Administration
- Hardening
- Security Audits
- Load Balancing
- Internet Security
- Vulnerability Assessment
- Computer Security
- CentOS
- Mercurial
- Web Applications
- HashiCorp
- Perl
- Linux
- Penetration Testing
- High Availability
- Programming
- Information Security
- Server Architecture
- DNS
- Firewalls
- Ethical Hacking
- Postfix
- Virtuozzo
- Virtualization
- Web Application Security
- Computer Forensics
- Social Engineering
- Vulnerability Scanning
- Vulnerability Management
- Security Assessments
- Security Research
- Security Awareness
- FastCGI
- Linux System Administration
- OpenVZ
- SQL
- Devops
- Go

## Certifications

- ISO27001:2005 Lead Auditor — Bureau Veritas
- Certified Secure Web Application Engineer — Mile2

## Projects

- **CPAN Module Writing** — http://metacpan.org/author/MADCAT
  Wrote (and still writing) a bunch of Perl modules that ended up on CPAN

## Publications

- *tap tap tappity* is this on? — angrydutchman.pckt.blog (https://angrydutchman.pckt.blog/tap-tap-tappity-is-this-on-2nwjbg2)

## Languages

- French (professional_working)
- English (native)
- Dutch (native)
- Indonesian (limited_working)
- German (limited_working)