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Oleksiy Zinchenko Golang Developer
[открыть контакты](см. выше в блоке «контактная информация») github.com/sryosz @srymad Odesa, Ukraine

Profile

Backend engineer with 3 years of production Go experience in distributed, high-load systems.
Built and maintained services handling up to 10k RPS, event pipelines processing 100k+
messages, and multi-chain Web3 infrastructure across Ethereum, Solana and Whitechain.
Comfortable owning a system end to end — from architecture and low-level performance work to
observability and delivery.

Skills

Golang Storage
HTTPS & WS
• PostgreSQL
•

gRPC & protobuf
• MySQL
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Bun, Gorm, Sqlc
• Redis
•

Concurrency
• Clickhouse
•

testify, gomock, testcontainers
• AWS S3
•

TimescaleDB
•

Message Brokers
Kafka
• General
Nats
• Git & Gitlab CI
•

RabbitMQ
• Github Actions
•

Docker
•

Web3 Linux
•

Solana
•
Unit/Integration testing
•

Ethereum
•

Whitechain
• Observability
Prometheus
•

Concurrency Grafana
•

errgroup
•

semaphore
•

sync.Pool
•

custom worker pools
•

custom queue
•

Education

National University "Odessa Polytechnic" 2023 – Present
Bachelor's Degree in Software Engineering
 Professional Experience

DDTech 08/2023 – 04/2025
Golang Developer
Microservices platform; 30 services in total, 25 owned and maintained
by me.
Developed and supported HTTP/gRPC services across the platform,
•

from CRUD APIs to traffic-facing, high-load components.
Built the analytics/statistics pipeline on Kafka, ingesting bursts of up to
•

100k messages and aggregating data from multiple upstream services.
Ensured reliable inter-service messaging and consistent performance
•

under sustained heavy load.

Truggo Software 04/2025 – 06/2025
Middle Golang Developer
Government-backed insurance platform - a mission-critical system with
strict reliability and security requirements.
Joined as the first Go engineer and bootstrapped the project from zero:
•

repository structure, service architecture, technical standards and
development workflow.
Built core system components in native Go with a deliberately
•

minimal dependency footprint, to keep behaviour predictable and
auditable in a regulated environment.
Designed resilient service-to-service communication with secure
•

transport and fault-tolerant failure handling for a multi-layered
architecture.

Over 06/2025 – Present
Middle Golang Developer
Large-scale Web3 analytics and data platform operating under heavy
parallel load.
Designed and built the external platform API serving up to 10k RPS,
•

with WebSocket and gRPC streaming endpoints.
Integrated 3 blockchain networks (Ethereum, Solana, Whitechain) and
•

10+ third-party APIs into a unified data-aggregation layer with
continuous on-chain collection.
Reduced crypto transaction processing time from ~2 minutes to 10
•

seconds (12x) by redesigning the processing pipeline and replacing
sequential handling with a custom concurrent queue.
Implemented a custom queue system for high-throughput job
•

distribution, providing backpressure control and retry semantics under
load spikes.

Languages

English: B2 Ukrainian: Native Russian: Advanced