05/09/2026 updated
partially available
info: Available evenings and weekends
Backend PHP Developer (Symfony, AWS, High-Load, Vue)
Lutsk, Ukraine
Only remote
self-taught developer with hands-on experience and real-world projectsAbout me
Backend PHP Developer focused on high-load systems, integrations, and automation. Experienced with Symfony and Vue. Strong in performance optimization, database tuning, and async processing.Worked on systems with 1M+ users. Focused on measurable improvements, stability, and maintainable architecture
AWS SQSPHPApplication Programming Interfaces (APIs)Application Integration ArchitectureMySQLOracle NetSuiteSimple Object Access Protocol (SOAP)SymfonyNetsuite ErpBackendApi DesignRestful ApiAmazon Simple Queue Service (SQS)
PHP & Symfony Development
Expertise in PHP 8+ and Symfony 4/5/6 for building and maintaining high-load backend systems with 1M+ recurring customers, including ECS-based services and production line systems with real-time constraints.
AWS Cloud Services
Hands-on experience with AWS services including ECS, SQS, ALB, API Gateway, and Secrets Manager. Processing hundreds of thousands of messages daily via AWS SQS and debugging high-latency issues using ALB logs and CloudWatch.
Database Optimization
Working with large databases over 10GB using MySQL and PostgreSQL, optimizing queries and data access patterns, utilizing CTEs and composite indexes to reduce response times from ~90s to ~10s.
Message Queue Processing
Implementation and management of message queue systems using Symfony Messenger and AWS SQS for high-throughput asynchronous processing.
CI/CD Management
Maintaining CI/CD pipelines with GitHub Actions, supporting Symfony 4/5/6 and Vue 2/3 projects for continuous integration and delivery.
Multi-Tenant Architecture
Development and maintenance of a multi-tenant warehouse management system deployed to 12+ client installations with client-specific customizations and continuous feature delivery.
Frontend Technologies
Knowledge of Vue 2/3, HTML, CSS, and JavaScript for building and maintaining internal dashboards and customer-facing interfaces.
NetSuite Integration
Automating NetSuite processes including stock adjustments on shipments and approval workflows for operational and financial processes using NetSuite SuiteScript 2.x and NetSuite SDF.
Monitoring & Logging
Utilization of Sentry, Monolog, and CloudWatch for application monitoring, error tracking, and log analysis to identify and resolve performance bottlenecks.
API Development & Integrations
Development of APIs and integrations including label printing, SMS, Telegram bot, AI text generation, and competitor parsing within multi-tenant systems.
Expertise in PHP 8+ and Symfony 4/5/6 for building and maintaining high-load backend systems with 1M+ recurring customers, including ECS-based services and production line systems with real-time constraints.
AWS Cloud Services
Hands-on experience with AWS services including ECS, SQS, ALB, API Gateway, and Secrets Manager. Processing hundreds of thousands of messages daily via AWS SQS and debugging high-latency issues using ALB logs and CloudWatch.
Database Optimization
Working with large databases over 10GB using MySQL and PostgreSQL, optimizing queries and data access patterns, utilizing CTEs and composite indexes to reduce response times from ~90s to ~10s.
Message Queue Processing
Implementation and management of message queue systems using Symfony Messenger and AWS SQS for high-throughput asynchronous processing.
CI/CD Management
Maintaining CI/CD pipelines with GitHub Actions, supporting Symfony 4/5/6 and Vue 2/3 projects for continuous integration and delivery.
Multi-Tenant Architecture
Development and maintenance of a multi-tenant warehouse management system deployed to 12+ client installations with client-specific customizations and continuous feature delivery.
Frontend Technologies
Knowledge of Vue 2/3, HTML, CSS, and JavaScript for building and maintaining internal dashboards and customer-facing interfaces.
NetSuite Integration
Automating NetSuite processes including stock adjustments on shipments and approval workflows for operational and financial processes using NetSuite SuiteScript 2.x and NetSuite SDF.
Monitoring & Logging
Utilization of Sentry, Monolog, and CloudWatch for application monitoring, error tracking, and log analysis to identify and resolve performance bottlenecks.
API Development & Integrations
Development of APIs and integrations including label printing, SMS, Telegram bot, AI text generation, and competitor parsing within multi-tenant systems.
Experience
Professional experience0 - 5 years
Freelancer since2023
Languages
EnglishGoodUkrainianNative speaker
Project history
• processed hundreds of thousands of messages daily via aws sqs in a system with 1m+ recurring customers
• maintained ecs-based services (~10 services), including production line system with real-time constraints
• worked with databases >10gb (mysql/postgresql); optimized queries and data access patterns
• debugged high-latency issues using alb logs and cloudwatch
• reduced report generation from 2–3 hours to 10–20 minutes by switching from excel to csv processing
• optimized internal dashboards from ~90s to ~10s response time via sql improvements
• rewrote customer chat from doctrine to native sql with infinite scroll
• automated netsuite processes (stock adjustments, approvals, reporting)
• built mass assembly functionality for purchase orders
• created automated daily/weekly reports and notification systems
• maintained ci/cd pipelines with github actions
• developed and maintained multi-tenant warehouse management system deployed across 12+ client installations
• implemented integrations: label printing, sms, telegram bot, ai text generation, competitor parsing
• supported multi-tenant architecture with client-specific customizations and continuous feature delivery