olehrdk
Backend Engineer | Go, Blockchain, Aws | Turning Complex Problems Into Simple, Reliable Products
I’m a Backend Engineer who thrives at the intersection of complex systems and practical solutions.
I build reliable, secure, and scalable backend systems that turn business challenges into products teams can trust.
My core stack is Go, Solana & EVM blockchains, and AWS, but what truly defines my work is the way I approach problems:
- I take ownership from problem to production, making sure what I build doesn’t just work once, but keeps working.
- I keep things simple and clear, even when the problem is anything but.
- I care deeply about security and architectural clarity, because reliability starts at the foundation.
- I believe growth comes from solving hard problems, learning fast, and raising the bar with every project.
Let's build something great!
I build reliable, secure, and scalable backend systems that turn business challenges into products teams can trust.
My core stack is Go, Solana & EVM blockchains, and AWS, but what truly defines my work is the way I approach problems:
- I take ownership from problem to production, making sure what I build doesn’t just work once, but keeps working.
- I keep things simple and clear, even when the problem is anything but.
- I care deeply about security and architectural clarity, because reliability starts at the foundation.
- I believe growth comes from solving hard problems, learning fast, and raising the bar with every project.
Let's build something great!
Experience: 5 years
Yearly salary: $110,000
Hourly rate: $60
Nationality: 🇺🇦 Ukraine
Residency: 🇵🇱 Poland
Experience
Founding Lead Backend Engineer
MetaWealth™ 2023 - 2025
Leading architecture, development, and operations of the backend platform for tokenized real estate. | Owning system design end-to-end, ensuring reliability, security, and scalability | Defining engineering processes, testing strategy, CI/CD pipelines, and AWS infrastructure using Terrafor | Driving blockchain integrations for tokenization, payments, KYC, and wallets. | Partnering with legal, finance, and product teams to align engineering with business goals. | Collaborating with engineers and established architecture principles and best practices | Key Achievements -> Blockchain Migration: Designed and implemented the full migration from Ethereum to Solana, including secure USDC and tokenized asset transfers, ensuring a smooth user experience. | Backend Re-Architecture: Migrated from a Node.js/AppSync/Amplify stack to Go microservices on AWS ECS with gRPC and event-driven design. Executed backward-compatible migration strategy while continuously delivering new product features. | Robust Infrastructure: Architected a bi-lingual microservices backend with event streaming, automated testing, CI/CD, and clear service boundaries. | Smart Contracts & Tokenization: Implemented Solidity smart contracts for real estate tokenization and dividend distribution. Tokenized 10 real estate packages, raising $18M+ and distributing $1M+ in dividends to investors. | Ownership & Growth: Evolved from backend, blockchain developer to founding backend lead, owning all backend systems, infrastructure, and blockchain integrations.
Skills
aws
ethereum
evm
golang
node
postgres
solana
solidity
sql
tokenization
english
ukrainian