init experience stack edu

$ whoami

Nikita Osadchuk

$ cat headline.txt

$ ls impact/

staking-platform perpetual-dex solana-trading-bot ai-rag-pipeline sui-mini-app casino-backend

system.overview

Senior Blockchain / Backend Engineer building production-grade smart contracts, DeFi infrastructure, trading systems, and AI-powered backend tools.

Built smart contracts and backend infrastructure across TON, Everscale, Venom, Sui, Solana, and EVM networks. The strongest edge is turning complex on-chain mechanics into working products: staking, DeFi, trading automation, NFT systems, analytics, and AI-assisted retrieval pipelines.

ls achievements

Measured outcomes

$ cat sui_capybot.log
0 Top NFT project on Sui

Built smart contracts for Telegram mini app @getcapybot, including character upgrades, lootboxes, and NFT minting with royalty support.

0 NFTs minted
$ cat staking_platform.log
0 of token supply secured

Owned full smart contract architecture and Rust backend for the staking platform, then deployed it across Everscale and Venom.

Production deployment across two networks
$ cat solana_trading.log
live real capital environment

Designed and ran a proprietary Solana trading system with live funds, latency-sensitive execution, automated position management, and risk control.

281640 $

impact.log

Selected wins

01

Staking platform

Led full smart contract architecture and Rust backend services for a staking platform that secured roughly 30% of token supply on Everscale and Venom.

02

Perpetual DEX

Contributed core smart contract work on a Perpetual DEX and helped port protocol logic to EVM-compatible networks.

03

Trading infrastructure

Designed a proprietary Solana trading bot in Rust with live capital, latency-sensitive execution, risk control, and automated position management.

04

AI retrieval

Built a hybrid RAG pipeline with BM25 plus semantic retrieval and LLM generation for better relevance and production-grade document workflows.

experience.timeline

Experience

2022 — now 3y 11m

Broxus

Senior Blockchain / Backend Engineer, Smart Contract Developer

  • Designed and built smart contracts for TON, Venom, and Everscale ecosystems.
  • Led Locklift development, a smart contract development and testing framework comparable to Hardhat.
  • Delivered blockchain products including tokens, NFTs, lotteries, indexers, and real-time on-chain processing tools.
  • Built backend services with Rust and Python, including casino platform architecture and provider integrations.
  • Developed a Sui Telegram mini app with upgrades, lootboxes, NFT minting, royalties, and Top 5 NFT ecosystem traction.
2021 — 2022 10m

Mr.Robot

Blockchain Developer

  • Built Solana NFT buying bots in Node.js and Go with throughput exceeding 100,000 transactions per second from a single machine.
  • Developed analytics and trading infrastructure using Go, gRPC, microservices, MongoDB, and low-level transaction packing.
  • Implemented Ethereum multicall tooling, ethers.js bots, gas-fee analytics, and Flashbots-based flows.
2021 — 2022 1y 2m

LATOKEN

Senior Front-End Developer

  • Built a complex P2P trading module with separate buyer and seller interfaces, chat flows, and 30+ UI states.
  • Adapted SushiSwap interface and SDK to a custom blockchain ecosystem.
  • Designed wallet, bridge, staking, and trading UI architecture, delivering projects solo.
2020 — 2021 14m

Earlier frontend roles

Frontend Developer at BRIZY and Urchin Systems, shipping React and Angular interfaces, CMS components, and feature work on existing products.

skills.matrix

Technical focus

Blockchain

Smart contracts, staking, perpetual DEX logic, NFT minting, royalties, lotteries, token mechanics, custom indexers, on-chain data processing.

Backend

Rust and Python services, FastAPI, NestJS, SQLAlchemy, MongoDB, data aggregation, real-time processing, high-load architecture.

Trading

Solana execution bots, latency optimization, risk controls, live capital operation, gas analysis, Flashbots flows.

AI / Search

RAG systems, BM25, hybrid retrieval, document indexing, semantic search, LLM-powered generation pipelines.

education.sys

Education & certification

BPF PGU

Higher National Diploma, Design Engineer

2011 — 2015

Claude Code in Action

Certification listed in LinkedIn export

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