Outcome-Driven Engineering

More Than Developers.
A Strategic
Product Partner.

We help companies move faster with senior engineering, proactive collaboration, and product-driven thinking — improving not just the codebase, but the product, user experience, and business outcomes behind it.

70k+
Users Worldwide
12
Years Experience
40+
Countries Reached
100%
Senior Engineers
OUR SERVICES

AI-Powered Engineering
for Modern Businesses

Senior teams using AI-enhanced workflows to build faster, test smarter, and deliver products that scale from day one.

Embedded Teams

Senior engineers integrated into your workflow with ownership, delivery accountability, and fast ramp-up.

  • Staff Augmentation
  • Dedicated Squads
  • PST–GMT Timezone Overlap

Mobile Development

High-performance cross-platform apps using Flutter, designed for scale, reliability, and maintainability.

  • iOS & Android (Flutter)
  • Native Performance
  • Firebase & Cloud Backend

AI Integration

Automation, intelligent features, and AI-assisted engineering to accelerate delivery and improve quality.

  • LLM & AI Features
  • Workflow Automation
  • Intelligent Recommendations

Technical Leadership

Architecture, CI/CD, code standards, and scaling engineering teams with strong technical direction.

  • Architecture & CI/CD
  • Code Quality Standards
  • Team Scaling Strategy

AI Roleplay Platform

Practice real-world scenarios with AI-driven conversations for sales, support, and leadership training.

  • Scenario Simulation
  • Progress Analytics
  • Organizational Training

AI Workflows

Automate repetitive processes and enhance internal tools with AI to increase speed and reduce errors.

  • Process Automation
  • Internal Tool Enhancement
  • Quality at Scale
OUR WORK

Experience & Impact

From fintech to education, we've built cross-platform products across industries, serving 70,000+ users in 40+ countries.

Fintech mobile app dashboard Fintech · Mobile

80+ Merchants — Financial Services

Cross-platform credit & payments app for merchants and consumers. Credit cards, loans, money transfers, statements, and cashback across 2 countries with 3,000+ end customers.

View Case Study
Education platform dashboard EdTech · Distance Learning

60,000+ Students — EdTech Platform

Mobile app for universities and colleges enabling teachers to create classes, streaming, tasks, and roll calls. Adopted by 40+ institutions across 4 countries.

View Case Study
IoT monitoring dashboard Industrial · Bluetooth IoT

20+ Industries — Equipment Monitoring

Mobile app for controlling and monitoring industrial equipment via Bluetooth. Real-time data exchange, usage cycle tracking, and sensor dashboards for QA teams across 2,000+ users.

View Case Study
Global accessibility app Social · Accessibility

40+ Countries — Accessibility Network

Community-driven app for discovering accessible businesses — wheelchair ramps, elevators, restrooms. 12,000+ place reviews, 10,000+ active users sharing real-world accessibility data.

View Case Study
Fitness studio app Fitness · Health

80+ Studios — Health & Wellness

Mobile app for small studios (Yoga, CrossFit, RPM) enabling class management, scheduling, billing, and CRM. Check-in and communication for 2,000+ customers.

View Case Study
Recovery wellness app iOS & Android

Recovery & Wellness App

Mobile recovery app built on 12-step principles with guided daily practice, AI-powered insights, and E2E encrypted peer support.

View Case Study
AI roleplay coaching platform Web App

AI Roleplay Platform

AI-powered roleplay coaching platform for organizational training with scenario-based conversations and progress analytics.

View Case Study
Real estate discovery app iOS & Android

Real Estate Discovery

Real estate discovery app with MLS listings, interactive map search, and AI-powered property analysis.

View Case Study
Beauty professional marketplace iOS & Web

Beauty Pro Marketplace

Two-sided marketplace connecting beauty professionals with salons for jobs, suite rentals, and education opportunities.

View Case Study
Board game retail platform Web Platform

Board Game Retail Platform

B2B platform for board game retailers with AI-powered recommendations and interactive quizzes.

View Case Study
FX trading platform FinTech Platform

FX Trading Platform

Enterprise FX trading platform with real-time currency exchange, compliance, and risk management.

View Case Study
+24
More Projects

Cross-platform apps built with Flutter, Firebase, GraphQL, AI, and cloud infrastructure across multiple industries.

Start Your Project
ABOUT STZ

We're Not Just Developers.
We're Partners.

Other dev shops just want your money. We want your success. Our senior-only team works alongside founders to understand their vision and build products that truly serve their users.

Senior-Only Quality

Experienced engineers using AI-assisted workflows to enforce code quality, scalability, and high test coverage.

PST–GMT Timezone Overlap

Core team in GMT-3 with reliable overlap across PST, MST, EST, and GMT for real-time collaboration.

No Tech Debt

Fast iteration without compromising long-term maintainability and performance. Quality over speed.

Trust, partnership, and growth
12 Years
Building Software
OUR PROCESS

How We Build Your Vision

A proven process refined over hundreds of projects, enhanced with AI for faster delivery.

1

Discovery

We dive deep into your vision, users, and goals to define the perfect solution and technical approach.

2

Architecture

Scalable system design, technology selection, and development roadmap tailored to your timeline.

3

Build & Test

AI-enhanced development with automated testing, code reviews, and continuous integration.

4

Launch & Scale

Deployment, monitoring, and continuous improvement as your product grows and evolves.

GOT AN IDEA?

Let's Build Something Great

Tell us about your project and we'll get back to you within 24 hours.

Get in Touch

Phone
+1 303 536 3692
Address
STZ LLC
251 Little Falls Drive
Wilmington, DE 19808
United States

Send a Message

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