KM

Konstantin Mamalakis

Available to hire

I am a seasoned Software Engineer with over 15 years of experience building high-performance systems in fintech, gaming, and broadcasting.

About

I am a seasoned Software Engineer with over 15 years of experience building high-performance systems in fintech, gaming, and broadcasting. I combine deep technical mastery with the ability to drive architectural change and to lead distributed, cross-functional teams.

  • 13 years' experience
  • Joined August 2025

Languages

  • AmharicAdvanced
  • AragoneseAdvanced
  • JavaneseAdvanced

Industry experience

  • Financial Services
  • Gaming
  • Media & Entertainment
  • Software & Internet

Work experience· 4 roles

Senior Software Engineer · BoffinsOct 2023 – Aug 2025 · 1 yr 11 mos

Overhauled message-broker and distributed file systems to improve latency and throughput. Built a video editor from scratch using WebGL shaders enabling real-time editing. Deployed AI-powered solutions including video captioning, image labeling, and translation. Contributed upstream patches to Chromium, FFmpeg, and key npm libraries. Automated team workflows, saving over 15 hours per week in manual processes.

Senior Fullstack Engineer · StripeOct 2023 – Present · 3 yrs 2 mos

Discovered and fixed business logic flaws affecting over $10M in cash flows and initiated architectural changes to prevent recurring discrepancies. Refactored internal and external APIs to unify feature sets, reducing duplicate code paths by 35% and improving maintainability. Reduced support tickets by 80% through UX improvements, comprehensive documentation, and enhanced internal tooling.

Embedded Software Engineer · EKTMar 2018 – Aug 2025 · 7 yrs 6 mos

Led the design and implementation of version 2 public API achieving 100% adoption by existing customers. Contributed upstream patches to Chromium, WebKit, and Qt. Assisted in recruiting, training, and leading a globally distributed 50-person team.

Software Engineer · QBSJul 2013 – Aug 2025 · 12 yrs 2 mos

Education

MSc in Computer Engineering (Integrated BSc/MSc) · University of Patras2030 – 2011

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