roman@berlin ~ zsh
Available for opportunities

ROMAN
ROIBU

Senior Software Engineer

12+ years building high-performance systems and scalable architectures. From blockchain infrastructure and automated trading to eye-tracking research and hardware security — crafting mission-critical software that pushes boundaries.

[email protected] romanroibu romanroibu Explore
12+
Years Experience
6+
Languages
8
Companies
3
OSS Projects
01

Experience

Senior Software Engineer 0xFIRE
Berlin, Germany · Aug 2024 – Present
  • Engineered real-time data ingestion pipelines for Solana and Ethereum on-chain activity
  • Developed high-concurrency, low-latency decision-making algorithms and execution engine
  • Delivered complete Staking Vault (ERC-4626) project including smart contracts
Rust Solidity Solana Ethereum
Senior Backend Engineer DeFi Labs
Berlin, Germany · Feb 2022 – Jul 2024
  • Architected VioletID from 0 to 1, establishing core infrastructure for DeFi compliance
  • Built backend microservices for enrollment, authentication and authorization
  • Contributed across the full stack with diverse technologies
TypeScript Node.js React AWS MongoDB
Software Engineer Pupil Labs
Berlin, Germany · Apr 2019 – Jan 2022
  • Optimized data pipelines for Pupil Core — open-source eye-tracking software
  • Collaborated with R&D to integrate research projects and push them to production
  • Ensured platform stability and assisted the global research community in adoption
Python C++ Data Pipelines
Supervision Analyst European Central Bank
Frankfurt am Main, Germany · Oct 2018 – Mar 2019
  • Developed automated user acceptance testing framework
  • Reduced manual testing overhead by 50% and streamlined delivery cycles
  • Established new testing procedures for release management
Python Selenium QA Automation
iOS Developer German Autolabs
Berlin, Germany · Mar 2017 – Sep 2018
  • Architected cross-device interfaces for a virtual assistant optimized for drivers
  • Built scriptable Dialog Management module for resource-constrained iOS app
  • Optimized latency-sensitive BLE communication with embedded hardware
  • Collaborated with AI/NLU team on Automatic Speech Recognition integration
Swift C++ BLE TypeScript
Software Engineer Keylabs
Berlin, Germany · Nov 2015 – Dec 2016
  • Architected and built from 0 to 1 the iOS password manager app
  • Designed secure communication protocol with paired hardware over BLE
  • Prototyped companion macOS app and Safari browser extension
Swift BLE Security macOS
Freelance iOS Developer Interact Media
Chisinau, Moldova · May 2014 – Oct 2014
  • Built the iOS app for one of the biggest news portals in Moldova
  • Delivered mobile-first experience to thousands of users
Swift iOS
Ruby on Rails Developer FusionWorks
Chisinau, Moldova · May 2013 – Sep 2013
  • Built REST API for a hospital patient management system
  • Increased automated test coverage by 40%
Ruby on Rails REST API
02

Technical Skills

Languages
Rust TypeScript Python Swift C++ Solidity
Frameworks
Axum Tokio Node.js Next.js Nest.js React Svelte Tailwind
Tools
Foundry AWS PostgreSQL MongoDB Selenium
Specializations
Distributed Systems Automated Trading Mobile Dev HW Security
03

Education

Artificial Intelligence Nanodegree
Udacity
2017
Classic AI approaches and modern Deep Learning techniques through hands-on projects. Python and C++ with OpenCV, Keras, scikit-learn, CNNs and RNNs.
Facial Keypoint Detection Text Generation Stock Prediction Dog Breed Classifier Sign Language Recognizer
Hardware Hacking With FPGAs
Advanced Security Training
2016
Hands-on hardware security covering FPGA (Verilog) and embedded system analysis. Glitching, timing analysis, protocol emulation and reverse engineering using oscilloscopes, logic analyzers, and JTAG.
B.Sc. Systems & Computer Engineering
Czech Technical University in Prague
2011 – 2015
Computational Intelligence, Distributed Systems, Advanced Database Systems, Runtime Systems, Network Administration, UI Design.
B.Sc. Systems & Computer Engineering
Technical University of Moldova
2011 – 2015
Data Structures & Algorithms, Discrete Mathematics, Compiler Design, Computer Architecture, Signal Processing, Information Security.
04

Open Source

🔨
Swift Programming Language
Swift, C++
⛓️
Reth (Rust Ethereum) Node
Rust
🔗
Chain Agnostic Swift SDK
Swift