Alexander Zakharov
Senior Embedded Software Engineer at SumUp
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolAlexander Zakharov is a senior embedded software engineer based in Berlin with over 10 years of professional experience building low-level systems in C and Unix/Linux environments. He brings deep expertise in embedded boot and kernel development, smart card and crypto stacks (IPsec, IKE, TLS, SSH, PKI, TrustZone/OP-TEE), and multithreaded/networked applications, complemented by assembly work across ARM, SPARC and MIPS. At SumUp and previously at Swemel he has driven robust device-level features and debugging, including runtime tracing and performance profiling for production systems. An active open-source maintainer and rdesktop contributor, he has a track record of fixing subtle memory and platform-specific issues across diverse Unix platforms. Colleagues rely on him for pragmatic, security-minded designs that bridge firmware, kernel drivers, and user-space tooling.
10 years of coding experience
19 years of employment as a software developer
National University of Science and Technology "MISIS" (Moscow Institute of Steel and Alloys)
English, Russian
Github Skills (8)
gnutls10
debug10
rdp10
cross-platform10
c-programming10
multiplatform10
remote-desktop10
openssl9
Programming languages (2)
Github contributions (5)
rdesktop/rdesktop
Nov 2016 - Feb 2019
🚨 rdesktop is in need of a new maintainter. Please see the home page for more details. 🚨
Role in this project:
Back-end Developer
Back-end DeveloperContributions:35 commits, 31 PRs, 10 pushes in 2 years 3 months
Contributions summary:Alexander primarily focused on fixing bugs and implementing improvements related to the remote desktop protocol (RDP) client. Their contributions include addressing double-free issues, implementing workarounds for OpenSSL key caching, handling platform-specific configurations like HOST_NAME_MAX on macOS and build issues on Solaris and FreeBSD, and addressing smart card handling and buffer overflows. They also worked on features, such as allowing single-character passwords and fixing file size handling for redirected disks.
remote-desktopwindowsrdplinuxneed
uglym8/rdesktop
Nov 2016 - Jan 2019
Unix client for Microsoft Remote Desktop Services.
Contributions:1 PR, 93 pushes, 39 branches in 2 years 2 months
unixwindows-desktopremote-desktopremote-desktop-serviceswindows
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