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Denis Sheremetov

CTO at Onix

Denis, Onix's CTO, leverages 20+ years in software. He designs custom solutions and shapes strategies for efficient, profitable, and secure technology use.

More from Denis Sheremetov


Travel agency software

travel platform architecture audit

Apr 27,2026

13 min read

1294 views

How to Audit a Travel Platform Architecture Before Scaling

Learn how to audit travel platform architecture before scaling: key metrics, integration risks, and modernization strategies for OTAs and travel SaaS.

author

Denis Sheremetov

Mobile App Development

screen time management app development

Apr 20,2026

11 min read

1249 views

Screen Time Management App Development: Lessons from Onix’s Experience

Discover how Onix built Axion FocusElf, an iOS screen time tracker, and learn key insights, tech lessons, and best practices in app development.

author

Denis Sheremetov

AI Apps and Implementation

ai in back-end programming

Apr 17,2026

6 min read

1312 views

AI-Powered Backend Development: Tools, Workflow & Benefits at Onix

Learn how we use AI in backend development to automate tasks, speed up delivery, and maintain high-quality PHP and Node.js systems with expert insights.

author

Denis Sheremetov

Travel agency software

tech debt in the travel industry

Apr 13,2026

14 min read

1172 views

What Is Technical Debt in Travel Platforms and How to Fix It

Learn how to detect technical debt in travel platforms, why it grows in OTA systems, and how to fix architecture issues before scaling.

author

Denis Sheremetov

hospitality personalization tools

Apr 08,2026

11 min read

692 views

Hyper-Personalization in Hospitality – a Step beyond Customization

Unlock the power of personalized hospitality with Onix. Go beyond customization to boost guest engagement, satisfaction, and long-term loyalty.

author

Denis Sheremetov

Technology Comparisons

types of cyber attacks

Mar 16,2026

14 min read

1050 views

Cybersecurity in 2026: Trends, Threats, and Solutions

Learn about common cyberattacks such as phishing and ransomware, and discover practical steps you can take to protect your business from threats in 2026 and beyond.

author

Denis Sheremetov

Travel agency software

global distribution system

Mar 11,2026

12 min read

1092 views

Global Distribution System (GDS) for Travel: Features, Cost & Software Options

Learn what GDS is in travel, how global distribution systems work, and how travel agents use GDS platforms for bookings, inventory, and reservations.

author

Denis Sheremetov

Travel agency software

travel fraud prevention

Feb 28,2026

12 min read

708 views

Fraud in the Travel Industry: Types, Tools and Strategies

Learn how to detect and prevent fraud in the travel industry with expert-backed strategies, real-life cases, and advanced tools for agencies and tour operators.

author

Denis Sheremetov

Metaverse

how to create a travel search engine

Feb 25,2026

11 min read

807 views

Our 5 Steps to Build a Travel Meta Search Engine

Learn how to build a travel metasearch engine with our detailed step-by-step guide. Explore essential steps, key features, technology choices, development tips, and costs.

author

Denis Sheremetov

Travel agency software

travel data migration

Feb 04,2026

14 min read

1289 views

Travel Business Migration: Ultimate Guide For Your Business

Read the guide for a smooth travel data migration. Learn key strategies for migrating to new systems, ensuring smooth operations and enhanced customers.

author

Denis Sheremetov

Payments and Security

what is aes

Jan 06,2026

24 min read

361 views

10 Best Practices for FinTech Application Security in 2026

Here, you can learn about the essential fintech security standards and techniques, methods, and approaches to financial services application protection.

author

Denis Sheremetov

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Case Studies

Design portfolio

Blog


Travel
  • How to Build a Travel Mobile App: Features, Tech, and Costs
  • Travel APIs: Types, Benefits, Best APIs &How to Choose
  • How to Choose a Payment Gateway for Travel Businesses?
  • Why and How to Build an Automated Travel System in 2025
  • Travel Fraud Prevention: Protect Your Business
  • A Travel Business's Guide to Seamless Migration

Healthcare
  • Healthcare CRM Development: Key Features & Cost
  • AR & VR in Medical Training: Use Cases & Implementation
  • MVP in Healthcare: How to Execute, Costs, and Major Milestones
  • How to Develop a Telemedicine App: Tips, Features & Costs
  • CRM Insurance Software Features
  • Why and How to Achieve Interoperability in Healthcare IT

AI Development
  • How AI is Transforming CRM – And What It Means for You
  • Hand Tracking and Gesture Recognition Using AI
  • Biases in Artificial Intelligence: How to Detect Bias in AI Models
  • Deepfake Threats: How to Protect Your Business?
  • AI Agents: Examples, Use Cases, and Development Basics