Alexander
From Ukraine (UTC+3)
Blockchain Engineer
Back-end Web Developer|Senior
Alexander – Rust, Solana, Blockchain
Alexander is a Rust engineer with 14 years in software who builds blockchain backends and indexers. Recently he replaced a third-party block streaming layer with an in-house Blocks API, added a NEAR indexer, and built shared Prometheus observability tooling for production indexing workflows.
14 years of commercial experience in
Blockchain
Mobile apps
Main technologies
Rust
4 years
Additional skills
Solana
Blockchain
Ethereum
Typescript
CI/CD
AWS
ERC20
C++
Qt
Prometheus
Docker
Protobuf
GitHub Actions
gRPC
PostgreSQL
GitLab
Smart contracts
Direct hire
PossibleReady to get matched with vetted developers fast?
Let’s get started today!Experience Highlights
Software Engineer
Jul 2024 - Jan 20261 year 6 months
Project Overview
It's a company that develops a network of fully customizable, EVM-compatible Virtual Chains on NEAR.
Responsibilities:
- Replaced JetStream-based block streaming with a company-owned Blocks API.
- Added a new blockchain indexer using the NEAR Lake Framework.
- Developed a shared observability library leveraging Prometheus metrics.
- Ensured compatibility with new NEAR protocol versions and coordinated testnet/mainnet releases.
- Implemented a POC block validator verifying NEAR blocks and chunks via authoritative node storage hashes.
- Automated PR-based version bumps across multiple repositories to streamline nearcore upgrades.
- Fixed and optimized NEAR block refiner logic and performance in open-source Rust crates used for standalone Aurora infrastructure and production indexing workflows.
Project Tech stack:
Rust
Blockchain
gRPC
Docker
GitHub Actions
Protobuf
Prometheus
Senior Rust Engineer
Sep 2023 - Jun 20249 months
Project Overview
It's a cross-chain earnings tracking tool.
Responsibilities:
- Developed back-end services in Rust for real-time tracking of staking rewards.
- Implemented historical data processing for staking rewards on Ethereum and Solana.
Project Tech stack:
Rust
Ethereum
Solana
gRPC
PostgreSQL
Rust Engineer
Jun 2023 - Jul 20231 month
Project Overview
It’s a decentralized protocol that lets users trade spot assets with leverage on DEXes while keeping full control of their funds.
Responsibilities:
- Implemented a Rust-based system called Keepers to monitor and manage the state of smart contracts on Polygon.
- Built functionality to automatically trigger liquidations and manage limit, stop-loss, and take-profit orders to protect lenders’ funds.
Project Tech stack:
Rust
Blockchain
Rust Engineer
Mar 2022 - Sep 20226 months
Project Overview
It's a Rust SDK for Android and iOS.
Responsibilities:
- Built asynchronous socket APIs in Rust for Android integration using Kotlin.
- Integrated Rust libraries into Android projects through a private Maven registry.
- Configured GitLab CI pipelines for automated mobile SDK packaging and distribution.
Project Tech stack:
Rust
GitLab
Software Engineer
Dec 2019 - Jan 20222 years 1 month
Project Overview
It's an interactive dataset viewer and real-time query tool.
Responsibilities:
- Built table and query processing logic for a real-time data stream database.
- Implemented TypeScript and QML APIs enabling users to connect to multiple streams, query data, and view results interactively.
- Maintained a Rust-based serialization and deserialization layer (AST to native Qt models) using Serde and qmetaobject.
- Developed a custom QML UI control library to enhance interface usability and functionality.
Project Tech stack:
C++
Typescript
Rust
Qt
Education
2009
Informational-control Systems and Technologies
M. S.Languages
English
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