Full-Stack Web Development
Business applications, internal platforms, frontend and backend development, REST APIs, SPA and PWA solutions.
PHPJavaScriptNode.jsHTML/CSSREST API
Full-Stack Developer
From business problems to working systems.
I build web applications, design databases and automate business workflows with AI and systems integration.
Full-Stack Development · Databases · AI Automation · Systems Integration
Expertise
Built around the whole system.
Full-stack web development and databases are my strongest areas, supported by practical experience in automation, integrations and infrastructure.
Databases
Relational database design, SQL query optimization, indexing, transactions, schema migrations and data processing.
MySQLMariaDBSQL
AI Automation
LLM integration, retrieval-augmented generation (RAG), AI agents and prompt engineering for practical business workflows.
Systems Integration
Bots for Telegram and the MAX messenger; CRM/BPM, external APIs, email and payment integrations. Connecting business systems and automating routine operations.
Additional hands-on experience
Software Development
IntermediateBuilding utilities, backend services and scripts with PHP, JavaScript, Java and Python. Currently learning React and TypeScript.
Android Development
IntermediateDeveloping and maintaining native Android apps. Registered developer on Google Play and Huawei AppGallery.
Servers & Infrastructure
IntermediateRunning Proxmox VE, virtual machines and containers, Linux and Windows Server (Active Directory and Group Policy). Deploying web services with Nginx and Docker; S3 storage, Zabbix monitoring, backup and recovery.
Information Security
Foundational / Hands-onApplying Ethical Hacking coursework in a personal Kali Linux lab, with a focus on vulnerability analysis and security testing.
Selected Projects
Practical tools. Working systems.
A selection of internal products and infrastructure work, from evaluating AI models to supporting everyday operations.
PROJECT 01 / AI
AI Evaluation Playground
An internal product I developed to test and compare LLMs for corporate tasks. Configurable prompts, datasets and reference outputs support structured evaluation and review of model results.
LLMAI EvaluationPHPMariaDB
Evaluation workflow
- Configure prompts and datasets
- Compare outputs against references
- Review evaluation results
Corporate Time & Attendance System
An internal platform for time and attendance tracking, schedules, overtime and timesheets. An administrative web interface and employee PWA bring reporting and notifications into daily workflows.
PHPMariaDBPWAAutomation
Field Technician Workspace
A web app with PWA support and an Android companion app for telecom field technicians. It connects service requests, work orders, work reporting and notifications through existing business APIs.
PWAAndroidREST APIService Desk
PROJECT 04 / INFRASTRUCTURE
Virtualization & Backup Infrastructure
A Proxmox-based environment for virtual machine management, server administration and S3-based backup workflows.
Proxmox VELinuxS3rclone
Background
Development with a business perspective.
I started my career in web development and later gained hands-on experience in business operations, management and process analysis.
I approach projects by understanding the workflow, clarifying requirements and connecting the systems people already use.
My current focus is full-stack development, systems integration and applied AI automation.
Have a project in mind?
Available for remote collaboration on web applications, system integrations, automation and infrastructure projects.
I prefer to understand the problem first, assess the requirements and offer a realistic implementation approach.
shadowxrays@gmail.com