Contact information

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Work experience

Golang developer

from 10.2023 to 03.2026 (2 years 6 months)
Нова діджитал, ТОВ, Київ (Транспорт, логістика)

розробка та підтримка Golang сервісів

Language proficiencies

• Ukrainian — fluent
• English — average

Additional information

RUSLAN HUBKIN
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Senior Backend Engineer
Kyiv, Ukraine (Remote) | [open contact info](look above in the "contact info" section)
telegram: @ssonic777
email: [open contact info](look above in the "contact info" section)
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PROFESSIONAL SUMMARY
Backend engineer with over 10 years of experience developing high-performance systems for the fintech, crypto and tourism industries. Specialist in PHP 8 (Laravel, Phalcon) and MySQL optimization, with proven experience migrating monolithic legacy systems to Golang microservices. Expert in scaling platforms to 500k+ and implementing complex ERP/billing integrations. Committed to Cloud-Native standards, clean code (PSR-12) and achieving technical excellence through mentorship.
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TECHNICAL SKILLS
•Languages: Golang, PHP 8, SQL (MySQL/PostgreSQL).
•Frameworks: Laravel 7, Phalcon 5, Go-Gin, Go-Micro, Gorilla.
•Golang libraries: GORM, go-redis, Testify, Zap, Zerolog, go-resty, Shopify/sarama, Prometeus, Protobuf, Gin, Ubr-fx
•Databases and storage: MySQL and PostgreSQL (high-load configuration, triggers), Redis, RabbitMQ, ElasticSearch, Kafka
•Infrastructure: Docker and Docker Compose, CI/CD (GitHub Actions, GitLab CI), AWS (EC2, S3).
•Methodologies: Microservices architecture, Domain-Driven Design (DDD), TDD, Agile/Scrum, SOLID principles.
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PROFESSIONAL EXPERIENCE

Nova Digital | Backend Developer | 2023 – 2026
•Development and support of high-load system services. Used resty, Kafka, PostgreSQL, Zap.Logger, Gorilla, Prometeus, pprof, Elastic Search.
•Developed and implemented monoliths and microservices using Golang to process tasks with a high level of parallelism, increasing the system throughput from 1 thousand to 5 thousand requests per second.
•Optimized integration with Google services API and storage.
•Development and support of geo-zoning and parcel receiving services (Laravel 8 / Golang)
•Migration of services from PHP to Golang
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Digitex / Blockster | Backend Developer | 2021 – 2022
•Developed and maintained a crypto-focused social network for over 500,000 active users, reducing API latency by 40% with advanced MySQL schema optimization and Redis caching layers.
•Optimized integration with Google Services API, ensuring seamless data synchronization for crypto trading news and blog modules.
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Ves-media | Backend Developer | 2018 – 2021
•Reengineered the core billing system using Phalcon 4, which increased the speed of financial transaction processing by 3 times and achieved 100% ACID compliance.
•Integrated the store with 1C:Enterprise,
•Optimized large-scale MySQL databases with complex triggers and procedures, which reduced the load on the database server by 40% during peak traffic.
•Implemented comprehensive testing (PHPUnit and acceptance tests).
•Development of an online store and API
•Development and support of a billing system, reports, analytics and sales forecasting
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I-media | Backend Developer (Billing Systems) | 2017 – 2018
•Development of a highly available billing mechanism using PHP 7.2 (PSR-4), which manages asynchronous task processing via RabbitMQ to increase system stability.
•Integration of MSSQL and MySQL databases.
•Automated deployment workflows using Jenkins CI, reducing the release cycle time from two weeks to daily.
•Migration of a monolithic targeting system to Laravel 7
•Integration of Google services Google Docs, Google Drive, Google Sheets
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DimeToGo (StartUP) | Backend Developer | 2016 – 2017
•Built an air ticket aggregator engine from scratch, integrating 10+ external supplier APIs and ensuring search results return in < 2 seconds .
•Architected a scalable backend using Laravel and Yii2, supporting high-load search sessions for thousands of concurrent users.
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EDUCATION & CERTIFICATIONS
•Academy "Step" | Programming Faculty (C++, C#, PHP, SQL, ASP.net) | 2004 – 2006
•Networking Academy | Network Administrator (LAN configuration & Management) | 1999
•Kiev College of Electric Appliance | Technical Engineer (CNC Management) | 1889 – 1993