Pavel Simerda

multi-skilled developer specialized in solving complex problems

Based in:

Czechia • Working area: EU
Status: at your service • Languages: English, Czech
Listed in: Development & Tech, Training & Education

I am a multi-skilled developer specialized in solving complex problems, often related to open-source technologies and software — a field in which I’ve been providing professional services since 2008, including tailored and advanced workshops for developers.

My job is to dive into specific problems in operating systems or applications, and find the right tools and solutions. I am able to fix complicated issues or errors and develop missing components. I also document everything and hand it over to your developers.

Do you produce or modify hardware? Develop real-time applications, or network apps that require parallel data processing? Do you need your developers to stay focused on their daily tasks, or to quickly understand an entirely new field?

Here’s an overview of my development-related skills:

Linux hardware drivers

Devices and buses
Embedded hardware peripherals
Network interfaces and switches

Telecommunications and networking

Network protocols
Optimized network traffic
Network hardware configuration

Real-time systems and applications

Soft real-time on Linux
Scheduler, interrupts and latency
Interprocess communication

Parallel applications

Synchronization and communication
Lockless data structures
Tuning and optimization

Tools and infrastructure

Build systems and development automation
Code management and continuous integration
Automated testing

Preferred technologies

Programming languages — C, C\+\+, Rust, Python, Haskell
Operating systems — Linux, UNIX, embedded systems
Databases — PostgreSQL, SQLite

What I do and for whom

Workshops for small development companies and teams, in-person as well as online. For example, I organized a series of workshops on porting applications from the QNX real-time operating system to Linux, or workshops on kickstartíng new hardware.
Consultations for leading Linux distributors and their customers. For example, I have consulted on various open-source projects related to network communications or customization of common open-source application software.
Analyses for development teams, managers and architects. For a Linux distributor, I prepared an analysis of the network configuration tools used, including specific shortcomings, available alternatives and remediation options.
Help with open-source technologies for anyone who asks for it. I have helped companies and individuals with open-source technologies. I've worked with them on perf and eBPF in the Linux kernel, Git for code management, transactions and locking in PostgreSQL, CUPS print server adaptations, or modifications to Linux distributions Fedora/RHEL, SUSE, and OpenWRT.

Contact details

Pavel Simerda
Datachange, s.r.o.
Na Folimance 15
Prague
12000
Czech Republic, European Union

Email:	freelancing@simerda.eu
LinkedIn:	grumpyprogrammer
X (Twitter):	pavlixnet
VAT ID:	CZ06120695