Tanur Orican

Senior Backend Engineer with 14+ years of experience in backend development, system integration, and software architecture. Strong background in PHP (Symfony, Laravel, Yii2), with hands-on experience in Go, Node.js, Java, and Kotlin. Experienced in developing distributed services, modernizing legacy applications, optimizing SQL and Redis workloads, and building data processing pipelines.

Worked on platforms handling data for 50M+ user accounts, integrations with 30+ banking APIs, and data collection systems covering 5,000+ websites.

Background in technical leadership, architecture design, production troubleshooting, and maintaining systems with multiple services and data storage technologies.

Senior PHP Developer / Backend Engineer at Cityads (2021-02 – Present)

Development and modernization of backend services, integration platforms, and data processing systems.

• Developed and maintained integrations with 30+ banking APIs, supporting lending-related workflows, external data exchange, error handling, and service-to-service communication.
• Developed and supported backend systems handling data for 50M+ user accounts, including collection, processing, and integration of data from 5,000+ websites.
• Modernized legacy PHP applications by upgrading a Symfony monolith from version 2.6 to 4.4 and then to 6.4, and progressively decomposing a custom PHP monolith into Laravel-based microservices.
• Developed and maintained Go microservices for messaging, polls, notifications, and statistics, including REST APIs, cross-service interactions, error handling, and automated tests.
• Developed VPN connection analytics using Node.js and MongoDB, including daily aggregations across user locations, network providers, and proxy servers. Implemented connection quality classification and selection of up to 9 proxy candidates based on historical connection statistics.
• Developed a field-level change event publishing mechanism for a Java 8/Aerospike service, generating Kafka events containing modified field names and values while preserving the existing Aerospike persistence workflow.
• Developed configurable ETL components for loading data from MySQL and Aerospike into ClickHouse, including source mapping, import configuration, and diagnostic logging.
• Worked on backend performance optimization, SQL query analysis, application containerization, and automated regression testing.
• Technology Stack: PHP 7/8, Symfony 2.6 / 4.4 / 6.4, Laravel 8 / 11, Yii2, Go 1.23, Node.js, Java 8 / 11, Kotlin, MySQL, PostgreSQL, Percona, MongoDB, Aerospike, ClickHouse, Redis, Kafka, RabbitMQ, Elasticsearch, REST APIs, Docker, Docker Compose, Linux, Git, Codeception, PHPUnit.

PHP Backend Developer at Gectaro (2021-12 – 2022-02)

Development and maintenance of backend services for construction cost estimation, project documentation, accounting, and reporting.

• Developed backend functionality for construction estimates, documentation management, financial reporting, and business workflows using PHP 7.4 and Yii2.
• Developed integrations with external services, including 1C, Telegram, and analytics platforms.
• Maintained backend services using PostgreSQL, Redis, RabbitMQ, and Sphinx Search.
• Developed and maintained automated tests using Codeception and supported Docker-based deployment environments.
• Technology Stack: PHP 7.4, Yii2, PostgreSQL, Redis, RabbitMQ, Sphinx Search, Docker, Linux, Codeception.

Senior Developer at Mebelrama.ru / Westwing.ru (2019-06 – 2020-10)

• Deployed and adapted the parent-company e-commerce platform for the local market, including localization and integration with existing systems.
• Extended online store functionality and backend APIs to support local business processes.
• Refactored existing services and designed and developed microservices for e-commerce workflows.
• Technology Stack: PHP 7.4, PostgreSQL, Elasticsearch, RabbitMQ, Docker, Docker Compose, Linux.

CRM Systems Architect at Direct Trade LLC (2014-01 – 2019-05)

• Led a technical team of 5 developers and 2 DevOps engineers, combining architecture design with hands-on development.
• Designed CRM architecture, databases, order intake, reporting, and integrations supporting the complete customer order lifecycle.
• Designed and developed data exchange services connecting CRM systems, e-commerce websites, and external providers.
• Coordinated migration of a production environment with 12+ servers to a new data center.
• Supported Linux-based production infrastructure and MySQL/Percona databases; established technical documentation in Confluence.
• Technology Stack: PHP, Yii2, Laravel, Bitrix, MySQL/Percona, MariaDB, Redis, RabbitMQ, Java 8, Linux.

Institute of World Economy and Informatization (IMEI)

bachelor business computer science 4

2012 - 2016