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Armin K.

Armin K.

Senior C++ Engineer | Linux, Backend & System-Level Development

Senior Software Engineer with strong experience in C++ development on Linux, focused on backend and system-level software rather than microcontroller-only firmware. I have worked on complex production systems including: • Modern C++ development for Linux-based platforms • Backend and long-running services • Multithreaded and performance-critical components • Integration with system services and hardware-facing layers • Unit testing and maintainable codebases • Git-based workflows and Agile environments In addition to C++, I have experience using C# for internal tools and engineering applications, particularly in hardware-related and system support contexts. My background includes working with OpenBMC and low-level Linux components, but my main strength is building robust, clean, and reliable software systems in C++. I am comfortable joining existing codebases, fixing complex issues, and delivering production-ready solutions. Available for: • C++ / Linux development • Backend & system software • Embedded Linux (non-microcontroller-focused) • Code refactoring and performance optimization

🇪🇸Sant Joan Despi, Spain$35/hr100% JSSSince Jan 2025

Earnings and projects

MRR
$107

Last 6 months ÷ 6

World#132,994 / 412k
🇪🇸Country#1,246 / 4,023
Revenue, last 30 days
$0

Last 6 months: $643

Total earnings
$1.8k

Billed in all: $1.8k

World#343,995 / 412k
🇪🇸Country#3,403 / 4,023
Per project
$893

$643 in the last 6 months

World#132,654 / 412k
🇪🇸Country#1,314 / 4,023
Projects, last 6 months
1
100% fixed0% hourly
World#128,092 / 412k
🇪🇸Country#1,171 / 4,023
Projects in all
2
100% fixed0% hourly
World#328,886 / 412k
🇪🇸Country#3,175 / 4,023

Earnings, last 30 days

$1.8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,760$1,780$1,800$1,820Oct 8Oct 23Nov 7

Skill rankings: Top 22% in C

Ranked by MRR among everyone on Upwork with the skill.

  1. #25System Programming76 freelancers · 🇪🇸 #1Top 33%
  2. #106Embedded Linux360 freelancers · 🇪🇸 #3Top 29%
  3. #434C1,974 freelancers · 🇪🇸 #10Top 22%
  4. #745Linux3,038 freelancers · 🇪🇸 #8Top 25%
  5. #927Software Development2,923 freelancers · 🇪🇸 #9Top 32%
  6. #1,131C++4,442 freelancers · 🇪🇸 #12Top 25%
  7. #1,333Git5,766 freelancers · 🇪🇸 #12Top 23%
  8. #2,078C#8,348 freelancers · 🇪🇸 #17Top 25%