Performance & scalability
System-wide performance engineering, architectural bottleneck analysis and production resilience. Lower latency, efficient resource utilization and room to scale.
Explore service ↗Senior Full-Stack JS / PHPMaksym
Maksym
Semenykhin.
10+ years building SaaS, CRM and web applications. I optimize SQL and APIs, build asynchronous processing, integrate AI and help existing products move forward.
Architecture. Performance. Reliable delivery.
LaravelNode.js / TypeScriptVue.jsMySQLRedis / RabbitMQ
Services
Where I can help
SaaS & backend systems
Multi-tenant architecture, REST APIs, migrations, indexes and queues. From backend logic to Vue interfaces.
Explore service ↗AI integration & automation
AI capabilities integrated into your product and business workflows. Connect CRM, telephony and services through reliable automation, data processing and reporting.
Explore service ↗Selected experience
All work ↗The work behind the stack.
AI call quality control for a multi-tenant CRM
An end-to-end system connecting telephony, AI processing and reporting inside a multi-tenant CRM platform.
- PHP 8
- Laravel
- Yii2
- Node.js
Removing bottlenecks in a training platform
Backend and frontend work on Skillsline, a training platform with partner-service integrations, with a focus on database and application performance.
- Strapi
- Vue.js
- MySQL
- Node.js
Cross-platform delivery and full-stack development
Application development and delivery engineering for WholeReader, spanning backend services, frontend interfaces and automated builds.
- Node.js
- Express
- Vue.js
- Svelte
Insights
All articles ↗
Latest articles
CRM/SaaS reports crawl: queues and indexes without a full rewrite
When a CRM or SaaS report makes people wait, time that report and check indexes, queues and account boundaries before replacing the product.
Brief from marketer to developer: must-have attachments
What a marketer or agency should attach before development starts: outcome, platform, acceptance checks and access, without production secrets in chat.
When a Node queue sits beside Laravel instead of another cron
When work should leave a Laravel request, when a retry must be idempotent, and when a separate Node process is justified instead of another cron.
