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Hi, I’m David Predusel — a Senior Software Engineer and founder of gossy.io. Over 10+ years, I’ve shipped high-throughput backends, real-time platforms, and trading/HFT systems using C, PHP, and Node.js. I combine a deep C/algorithms foundation with Web2 and Web3 expertise, building low-latency APIs, secure auth and payments, and blockchain integrations. I enjoy solving complex problems, mentoring engineers, and delivering scalable, reliable software across cloud-native stacks.…Hi, I’m David Predusel — a Senior Software Engineer and founder of gossy.io. Over 10+ years, I’ve shipped high-throughput backends, real-time platforms, and trading/HFT systems using C, PHP, and Node.js. I combine a deep C/algorithms foundation with Web2 and Web3 expertise, building low-latency APIs, secure auth and payments, and blockchain integrations. I enjoy solving complex problems, mentoring engineers, and delivering scalable, reliable software across cloud-native stacks.

David Predusel

Full Stack Developer, Back-End Developer, Web Developer, +2

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Hi, I’m David Predusel — a Senior Software Engineer and founder of gossy.io. Over 10+ years, I’ve shipped high-throughput backends, real-time platforms, and trading/HFT systems using C, PHP, and Node.js. I combine a deep C/algorithms foundation with Web2 and Web3 expertise, building low-latency APIs, secure auth and payments, and blockchain integrations. I enjoy solving complex problems, mentoring engineers, and delivering scalable, reliable software across cloud-native stacks.…Hi, I’m David Predusel — a Senior Software Engineer and founder of gossy.io. Over 10+ years, I’ve shipped high-throughput backends, real-time platforms, and trading/HFT systems using C, PHP, and Node.js. I combine a deep C/algorithms foundation with Web2 and Web3 expertise, building low-latency APIs, secure auth and payments, and blockchain integrations. I enjoy solving complex problems, mentoring engineers, and delivering scalable, reliable software across cloud-native stacks.

Available to hire

Hi, I’m David Predusel — a Senior Software Engineer and founder of gossy.io. Over 10+ years, I’ve shipped high-throughput backends, real-time platforms, and trading/HFT systems using C, PHP, and Node.js.

I combine a deep C/algorithms foundation with Web2 and Web3 expertise, building low-latency APIs, secure auth and payments, and blockchain integrations. I enjoy solving complex problems, mentoring engineers, and delivering scalable, reliable software across cloud-native stacks.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Romanian, Moldavian, Moldovan

Fluent

Work Experience

Founder & Senior Software Engineer at BINARY-GATEWAY

April 1, 2021 - Present

Led full-stack architecture and DevOps for production backends and mobile apps; built Gossy Web3 protocol: wallet identity, IPFS content, ERC-20 contracts and gasless transaction relayer; delivered high-throughput APIs with Redis caching, SQL optimization, AWS auto-scaling, secure auth/payments systems and CI/CD monitoring.

Senior Backend Engineer at Casino 777

January 1, 2021 - January 1, 2025

Integrated direct APIs from iGaming providers; replaced iSoftBet aggregator; designed in-house wallet and transaction ledger handling bets, wins and balances; owned core casino calls, provider callbacks/webhooks, idempotency and reconciliation.

Senior Software Engineer at PITECH PLUS

February 1, 2023 - March 1, 2024

Led delivery of a complex platform using Agile and CI/CD, balancing efficiency and quality; designed secure API layer for external integrations (auth/authorization, rate limiting); contributed to iGaming platform backend: provider integrations, wallet/balance, bets & wins.

Senior Software Developer at Plenty Development

October 1, 2019 - February 1, 2023

Enhanced Lumen/Laravel e-commerce platform (backend, auth, payments); developed and integrated RESTful APIs with strong test coverage; improved UX and reliability.

IT Team Lead at Global Marketing Resources

January 1, 2017 - August 1, 2019

Mentored engineers, conducted code reviews and aligned delivery with product goals; led live-streaming and web apps development; managed timelines and quality.

Full-Stack Developer at Global Marketing Resources

October 1, 2015 - January 1, 2017

Built a complex online streaming platform from scratch (Laravel/Lumen & Node.js REST services; frontend in React/Vue); managed MySQL/MongoDB; set up AWS CI/CD with Jenkins; integrated Wowza Streaming Engine for live streaming.

Junior Software Developer at SmartValue Services

August 1, 2014 - October 1, 2015

Modernized legacy PHP pharmacy site to Symfony, improving performance and maintainability; debugged/optimized code under pressure and consistently hit deadlines with high-quality output.