09/14/2026 updated
100 % available
Senior Smart Contract Engineer | Solidity 路 EVM 路 RWA Tokenization
Odesa, Ukraine
Only remote
Bachelor of Arts in Computer ScienceSmart ContractsTokenizationSolidity
Solidity & EVM Smart Contract Development
Deep expertise in designing and implementing Solidity smart contracts for tokenized assets, including ownership representation, transfer constraints, role-based permissions, mint/burn flows, and marketplace interactions aligned with compliance rules. Extensive experience with ERC-20, ERC-721, ERC-1155, and ERC-3643 standards across EVM-compatible networks.
Smart Contract Security & Audit Readiness
Strong focus on contract security through access control, reentrancy protection, checks-effects-interactions patterns, invariant testing, fuzz testing, static analysis, and audit preparation. Deployment checklists and security reviews ensure releases are audit-ready and production-safe.
Automated Testing with Hardhat & Foundry
Comprehensive automated testing using Hardhat and Foundry, covering unit, integration, invariant, and negative-path tests. Storage layout reviews, access control checks, external-call pattern analysis, and upgrade considerations are part of the pre-deployment process.
RWA Tokenization & Marketplace Logic
Experience designing tokenization and marketplace logic for real-world assets, including fractional ownership, settlement logic, transfer restrictions, and compliance-aware token approaches for restricted transfers and investor eligibility.
Web3 Platform & Wallet Integration
Integration of smart contracts with frontend and backend services through typed ABIs, event-driven workflows, and wallet connections using MetaMask and WalletConnect. Deployment to Layer 2 networks including Polygon, Arbitrum, and zkSync with event indexing via The Graph.
CI/CD & Deployment Pipelines
Delivery automation using Git, Docker, and CI/CD pipelines for environment configuration, contract verification, and technical documentation. Production-ready deployment practices ensure reliable and repeatable releases.
Distributed Systems & Security Engineering
Background in building security-sensitive distributed components with strict trust boundaries, explicit authorization, defensive validation, and deterministic failure handling. Applied principles of least privilege, immutable audit evidence, and controlled production rollout.
Cloud Platform & Infrastructure Automation
Experience developing automation and platform capabilities for infrastructure workflows using Python, JavaScript, REST APIs, and Linux. Modular automation components with idempotent execution, retries, timeout handling, and explicit state transitions for predictable distributed workflows.
TypeScript & Node.js Backend Integration
Integration of smart contracts with TypeScript and Node.js services, wallets, and indexing layers. Monitoring of events, transaction failures, and contract-state consistency across EVM-compatible networks.
Deep expertise in designing and implementing Solidity smart contracts for tokenized assets, including ownership representation, transfer constraints, role-based permissions, mint/burn flows, and marketplace interactions aligned with compliance rules. Extensive experience with ERC-20, ERC-721, ERC-1155, and ERC-3643 standards across EVM-compatible networks.
Smart Contract Security & Audit Readiness
Strong focus on contract security through access control, reentrancy protection, checks-effects-interactions patterns, invariant testing, fuzz testing, static analysis, and audit preparation. Deployment checklists and security reviews ensure releases are audit-ready and production-safe.
Automated Testing with Hardhat & Foundry
Comprehensive automated testing using Hardhat and Foundry, covering unit, integration, invariant, and negative-path tests. Storage layout reviews, access control checks, external-call pattern analysis, and upgrade considerations are part of the pre-deployment process.
RWA Tokenization & Marketplace Logic
Experience designing tokenization and marketplace logic for real-world assets, including fractional ownership, settlement logic, transfer restrictions, and compliance-aware token approaches for restricted transfers and investor eligibility.
Web3 Platform & Wallet Integration
Integration of smart contracts with frontend and backend services through typed ABIs, event-driven workflows, and wallet connections using MetaMask and WalletConnect. Deployment to Layer 2 networks including Polygon, Arbitrum, and zkSync with event indexing via The Graph.
CI/CD & Deployment Pipelines
Delivery automation using Git, Docker, and CI/CD pipelines for environment configuration, contract verification, and technical documentation. Production-ready deployment practices ensure reliable and repeatable releases.
Distributed Systems & Security Engineering
Background in building security-sensitive distributed components with strict trust boundaries, explicit authorization, defensive validation, and deterministic failure handling. Applied principles of least privilege, immutable audit evidence, and controlled production rollout.
Cloud Platform & Infrastructure Automation
Experience developing automation and platform capabilities for infrastructure workflows using Python, JavaScript, REST APIs, and Linux. Modular automation components with idempotent execution, retries, timeout handling, and explicit state transitions for predictable distributed workflows.
TypeScript & Node.js Backend Integration
Integration of smart contracts with TypeScript and Node.js services, wallets, and indexing layers. Monitoring of events, transaction failures, and contract-state consistency across EVM-compatible networks.
Project history
Delivering smart-contract and Web3 engineering for blockchain products, focusing on secure token logic, integration boundaries, testability, and production-ready deployment practices. Designing and implementing Solidity contracts for tokenized assets, building automated tests with Hardhat/Foundry, and integrating contracts with frontend and backend services through typed ABIs, event-driven workflows, and wallet connections.
Delivered architecture and engineering for distributed client platforms, combining secure transaction logic, backend integration, automated testing, and cloud-native delivery. Developed and evolved EVM smart contracts for asset and marketplace workflows, applied ERC-20, ERC-721, and ERC-1155 patterns, strengthened contract security, and integrated contracts with TypeScript/Node.js services and indexing layers across Layer 2 environments.
Built security-sensitive distributed components and integration tooling, establishing strong foundations in threat-aware design, transaction integrity, automated testing, and production diagnostics. Designed security-sensitive service components, investigated concurrency and performance defects, and contributed to architecture and code reviews for security-critical changes and deployment workflows.