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Maksym Khokhlov

Maksym Khokhlov

Ukraine

PHP · Databases & SQL

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164
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I am a Backend Developer with over 8 years of commercial experience in developing, maintaining, and modernizing server-side applications. My main areas of expertise include designing scalable backend systems, developing REST APIs and microservices, integrating third-party services, optimizing databases, and improving application performance. I work with TypeScript, PHP, and Go. I have practical experience with NestJS, Symfony, Yii2, and Fiber, as well as with PostgreSQL, MySQL, and MongoDB databases. I have also worked with Docker, AWS S3, AWS Lambda, RabbitMQ, Redis, Elasticsearch, OAuth2,…
Nazar Lishchyshyn

Nazar Lishchyshyn

Ukraine

Databases & SQL · Text Translation

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163
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Google search query ranking
54 USD
140
Google search query ranking
Databases & SQL
In this work, data from Google Trends was analyzed to determine the most popular search queries for a selected period of time (for example, over the last year or month). The search queries were grouped by themes (for example, events, personalities,…
Maksim Nikitenko

Maksim Nikitenko

Ukraine

PHP · Databases & SQL

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160
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Senior backend engineer with 10+ years of PHP experience (Laravel, Symfony) building high-load consumer products. For the past 4 years — owner of the payments and billing domain of a dating platform with 40M+ registered users: subscriptions, recurring billing, retry strategies, PSP integrations, payment approval rate and Visa VAMP optimization. Hands-on with high-load MySQL (10K+ QPS, 900 GB), Redis, ClickHouse, Kafka, and Go. Mentor backend engineers and lead a payments track. Daily AI-augmented development workflow