Custom Websites & Mobile Apps Built to Scale
Engineered for Performance & Growth
We engineer high-performance web platforms, mobile apps, and search-optimized digital systems for US & European businesses. 70,000+ development hours delivered since 2014.
Custom Web Platforms & Enterprise Systems
Handcrafted WordPress, Laravel, React, and PHP builds with clean architecture, zero bloat, and sub-second load times.
- 40+ unmaintained third-party plugins and heavy visual builders
- 4s+ load times causing high bounce and lost leads
- Fragile spaghetti code difficult to scale or secure
- Custom WordPress, Laravel 11, or React 19 with zero plugin bloat
- Sub-second page speeds (< 0.8s) and green Core Web Vitals
- 100% clean, modular code with complete client IP ownership
WordPress, Laravel, React, Vue, PHP, and Tailwind CSS.
Sub-800ms LCP, Redis query caching, and green Core Web Vitals.
Client portals, CRM sync, Stripe/PayPal billing integrations.
OWASP hardening, strict NDA protection, and 100% IP ownership.
Cross-Platform iOS & Android Mobile Apps
Native-feel performance delivered from a single efficient React Native codebase for Apple and Google Play stores.
One clean TypeScript codebase powers both your iPhone and Android apps, cutting development timelines and maintenance costs nearly in half.
Full hardware integration: push notifications, FaceID/TouchID biometric authentication, camera, GPS geolocation, and offline data sync.
Complete end-to-end publishing handling: Apple App Store guidelines, Google Play approvals, and seamless version update pipelines.
Generative Engine Optimization (GEO) & Search Visibility
We structure your digital presence so modern AI answer engines (ChatGPT Search, Perplexity, Google AI Overviews) cite and recommend your business.
We implement comprehensive Schema.org JSON-LD (Organization, ProfessionalService, FAQPage, Article) so AI web crawlers accurately extract your services, pricing, and expertise.
Traffic is only valuable if it converts. We build 1-tap mobile call triggers, frictionless consultation forms, and clear trust signals that double inbound sales inquiries.
Est. 2014
10+ Years Continuous Delivery
70,000+
Logged Dev Hours
247+
Completed Projects
100%
Client Delivery Score
Top Rated Agency
Top 3% Independent IT & Engineering
“Very calm, clear, transparent and reliable. Fixed my spam issues and updated and secured several webpages. Thank you very much - I will rely on your services again!”
Digital Systems Engineered for Speed & Long-Term Growth
We don't sell confusing technical hours. We deliver turnkey, battle-tested digital assets designed to get you more calls, more qualified leads, and reliable performance without ongoing technical headaches.
High-Converting, Lightning-Fast Websites
We replace outdated, fragile templates with custom-built websites that open in less than a second. Designed with prominent call buttons and clear trust signals so visitors turn into paying customers immediately.
- Sub-second page speeds so customers never leave out of frustration.
- Easy content management so your team can edit text and images with zero coding.
- Full smartphone optimization with 1-tap calling and WhatsApp integrations.
Custom Mobile Apps & Portals
Single-codebase mobile applications using React Native. Full native app store polish without paying for two separate development teams.
- Simultaneous launch on Apple App Store and Google Play.
- Seamless payments with Stripe, Apple Pay, and subscriptions.
- Instant notifications to keep your customers engaged daily.
AI Search & Google Engine Rankings
Traditional SEO only targeted 10 blue links. Today, your customers ask ChatGPT and Perplexity. We format your entire presence so AI engines quote and recommend your firm.
- AI citation setups so ChatGPT & Perplexity verify your services.
- Google Local Map Pack dominance to capture regional service leads.
- Structured JSON-LD schema formatting who you are and what you deliver.
Conversion Audits & Funnel Optimization
Getting website traffic doesn't matter if visitors drop off. We analyze user friction points, eliminate slow scripts, and build high-converting landing pages that double your demo requests and inquiries.
- Form drop-off fixes so visitors don't abandon quote requests halfway through.
- Clear analytics dashboards showing exactly which campaigns generate phone calls.
- Targeted landing pages designed specifically for Google Ads and campaigns.
Why Fast-Growing Businesses Choose ONS Tech Global
Big domestic agencies charge $200+/hour and pass your project to junior interns. Cheap freelance marketplaces disappear halfway through. We provide the dependable middle ground: senior craftsmanship, direct daily communication, and fixed, transparent pricing.
Working in Your Timezone
No waiting 24 hours for an email reply. We provide active daily working overlap with US (EST/PST), UK, and European business hours for real-time Slack messages and video calls.
Senior Engineers Only
Your project is handled directly by senior full-stack developers with 10+ years of experience. No junior subcontractors, no layers of non-technical account managers.
Fixed Quotes, No Surprises
We work on agreed milestones and clear deliverable budgets. You never receive an unexpected bill for extra hours or hidden revision costs.
100% Code & IP Ownership
You own every single line of code, design file, and database from day one. We hand over full GitHub and hosting credentials with zero vendor lock-in.
Two Clear Ways to Partner with Our Squad
Choose the engagement model that fits your operational stage. Both models include direct senior architect access with zero account manager middlemen.
Fixed-Milestone Turnkey Project
Best for complete website redesigns, high-converting landing pages, or new mobile applications with clearly defined specifications.
Dedicated Senior Engineering Pod
Best for growing tech companies, SaaS founders, and agencies needing senior full-stack firepower embedded directly into their team.
From Scoping Call to Live Launch in 4 Milestones
Zero guesswork. Transparent milestone gates with staging previews so you are always in complete control.
Scoping & Architecture
We audit your requirements, eliminate technical debt, and establish an exact architectural blueprint with a fixed timeline.
Interactive Prototypes
You test high-fidelity Figma prototypes for mobile and desktop screens, revised until every user flow is crisp and approved.
Modular Engineering
We build your platform with modular, tested code. You test every feature and form workflow live on a private staging server.
Turnkey Handover
Zero-downtime deployment, AI search schema activation, and 100% handover of repositories, keys, and technical documentation.
Measurable Engineering Outcomes
Real software systems, commercial marketplaces, and mobile apps built and maintained by our senior engineering team.
All-in-One School Management System & Parent Portal
Built a cloud-native school ERP suite handling multi-role student admissions, attendance, dynamic report cards, and automated fee collections. Replaced scattered spreadsheets with a secure web system and mobile app.
High-Volume Voice Talent Marketplace & Rapid Audition Engine
Engineered a premier online casting portal connecting top international voice artists with ad agencies and production studios worldwide. Built instant demo streaming, automated audition dispatching, and secure escrow payment workflows.
High-End Remodeling Lead Engine & Design Gallery
Rebuilt the online presence for an award-winning luxury kitchen, bathroom, and custom cabinetry remodeler in Southwest Florida. Focused on sub-second image loading for high-resolution galleries and automated quote scheduling.
Offline Flight Path Tracker for Cockpit Landing Review
Engineered a mission-critical iOS application for pilots that logs high-precision telemetry and securely caches the last 5 flight paths locally in offline mode—enabling instant approach and landing path review even with zero cellular signal.
Click Your Industry to See How We Solve Your Specific Challenges
Select your business sector below to instantly preview our custom approach, real problem-solving framework, and expected performance outcomes.
Hear Why Founders & Directors Trust Our Engineering Squad
"I want to give a huge shout out to Aman and his team. I've been working with them for about three years now. Their service, their level of attention and detail is second to none... Whenever I've had an issue or something that needs to be resolved, their response is incredibly quick."
Let's Discuss Your Project Scope & Timeline
Schedule a focused 30-minute technical consultation. You will talk directly with a senior software architect who can review your requirements, suggest architecture improvements, and prepare a fixed milestone quote.
Clear Answers Before We Write a Single Line of Code
Direct facts on engagement models, ownership, working hours, and technical delivery.