sproot
Tech Lead / Principal Engineer
| I live in Ukraine now, but I have the legal right to work in the EU. |
• 18 years in software engineering and 9 years in leadership roles (Tech Lead/EM/Founder/CTO); managed teams of up to 25 engineers, set engineering standards, and mentored dozens.
• Specialized in building high-performance, production-grade systems: architecture, delivery process, reliability, observability, and scaling.
• The last 2 years focused on DeFi & DEX products: Solana/EVM ecosystems, AMM/CLMM mechanics, and Rust-based low-latency execution for DEX/CEX trading automation.
• Built and operated profitable DEX trading bots (Sniper / MEV / Arbitrage) reaching $20k–$40k/month during peak market activity on Tron blockchain; built Solana arbitrage engine written in Rust.
CORE EXPERTISE
• High-performance & resilient system architecture (event-driven, distributed systems, observability); full lifecycle including DevOps.
• Engineering quality at scale: Clean Architecture, SOLID, TDD, code review standards, and edge-case focus. DeFi & DEX domain: AMM/CLMM mechanics; built on-chain indexers/parsers for analytics and execution; familiarity with Solana DEX codebases (Raydium, Orca, Meteora, PumpSwap).
• Rust performance engineering (async/concurrency, multi-threading, profiling/optimization).
• Leadership & delivery: code ownership, mentoring, quality standards, and delivery governance; pragmatic Agile (XP/Scrum/Kanban) with cross-functional alignment to business goals.
TECHNOLOGIES
Languages: Rust, TypeScript/Node.js, JavaScript, Python, Ruby; basic Java, PHP
Frameworks: Angular, React, Express, Next.js, NestJS, Ruby on Rails
Blockchain: Solana, EVM; DEX/CEX trading automation, on-chain events, MEV concepts
Data & Messaging: PostgreSQL, Redis, MongoDB, RabbitMQ, Kafka, Elasticsearch; gRPC, REST
DevOps: Linux, Docker, Kubernetes, Helm, GitLab CI/CD, AWS, Azure; Prometheus/Grafana/VictoriaMetrics
• 18 years in software engineering and 9 years in leadership roles (Tech Lead/EM/Founder/CTO); managed teams of up to 25 engineers, set engineering standards, and mentored dozens.
• Specialized in building high-performance, production-grade systems: architecture, delivery process, reliability, observability, and scaling.
• The last 2 years focused on DeFi & DEX products: Solana/EVM ecosystems, AMM/CLMM mechanics, and Rust-based low-latency execution for DEX/CEX trading automation.
• Built and operated profitable DEX trading bots (Sniper / MEV / Arbitrage) reaching $20k–$40k/month during peak market activity on Tron blockchain; built Solana arbitrage engine written in Rust.
CORE EXPERTISE
• High-performance & resilient system architecture (event-driven, distributed systems, observability); full lifecycle including DevOps.
• Engineering quality at scale: Clean Architecture, SOLID, TDD, code review standards, and edge-case focus. DeFi & DEX domain: AMM/CLMM mechanics; built on-chain indexers/parsers for analytics and execution; familiarity with Solana DEX codebases (Raydium, Orca, Meteora, PumpSwap).
• Rust performance engineering (async/concurrency, multi-threading, profiling/optimization).
• Leadership & delivery: code ownership, mentoring, quality standards, and delivery governance; pragmatic Agile (XP/Scrum/Kanban) with cross-functional alignment to business goals.
TECHNOLOGIES
Languages: Rust, TypeScript/Node.js, JavaScript, Python, Ruby; basic Java, PHP
Frameworks: Angular, React, Express, Next.js, NestJS, Ruby on Rails
Blockchain: Solana, EVM; DEX/CEX trading automation, on-chain events, MEV concepts
Data & Messaging: PostgreSQL, Redis, MongoDB, RabbitMQ, Kafka, Elasticsearch; gRPC, REST
DevOps: Linux, Docker, Kubernetes, Helm, GitLab CI/CD, AWS, Azure; Prometheus/Grafana/VictoriaMetrics
Experience: 11 years
Yearly salary: $150,000
Hourly rate: $80
Nationality: 🇺🇦 Ukraine
Residency: 🇺🇦 Ukraine
Experience
Independent Developer
Proprietary Trading Bots 2024 - 2026
• Built Tron DEX bots from scratch (Sniper / MEV / Arbitrage) with event-driven execution and latency-focused transaction delivery; achieved $20k–$40k/month during peak market activities. • Designed and implemented a high-speed Solana arbitrage engine in Rust (multi-threaded, optimized ingestion and execution pipeline); discontinued due to market competition despite strong technical performance. • Implemented robust operations: monitoring, automated recovery, and safety controls for unreliable RPC/network conditions.
Tech Lead / Engineering Manager
JiBe ERP 2022 - 2024
• Led teams up to 25 engineers (5 squads); mentored on design, testing, TDD, and delivery best practices. • Owned architecture and system evolution: service boundaries, ER design, code reviews, strategic refactoring. • Implemented event-driven architecture and event-sourcing; built messaging libraries and solutions around RabbitMQ and Kafka synchronization. • Maintained Scrum delivery rituals (planning, refinement, demos, retrospectives) and improved time-to-market via process and tooling.
Founder & CEO
Proficonf 2016 - 2022
• Founded and led development of a high-load video conferencing product supporting tens of thousands of concurrent connections. • Built distributed backend of 18+ services using Node.js and messaging (AMQP/HTTP); applied Clean Architecture and TDD practices. • Delivered CI/CD and fault-tolerant production on Kubernetes; invested in observability and reliability.
Senior Full-stack Developer
7Pikes 2014 - 2015
• Developed pharmacy retail automation modules: medication catalog with mass import/export, POS & barcode scanner integrations. • Implemented accounting and reporting features, improving inventory visibility and operational workflows for pharmacy staff.
Senior Full-stack Developer
Vislinsky Corp. B.V. 2012 - 2013
• Built a game-based web platform with real-time canvas gameplay synchronization, including interactive UI flows and real-time state updates. • Implemented core social features (feeds, posts, comments, private messaging) and an admin panel for moderation and content management.
Senior Backend Developer
OnApp 2011 - 2013
• Developed automation around VM/hypervisor operations (provisioning, migrations, scaling resources) and platform integrations. • Refactored core architecture into a more modular, polymorphic design that simplified maintenance and reduced complexity of feature delivery.
Skills
angular
aws
crypto
defi
devops
docker
ethereum
javascript
kubernetes
mev
mongo
nextjs
node
postgres
python
rabbitmq
react
redis
ruby
rust
solana
solidity
tech-lead
typescript
web3
english
russian
ukrainian