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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

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.

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 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.