Full-Stack Software Development

Senior-only full-stack teams that ship production-ready code from day one.

React, Node.js, and TypeScript experts for serious product delivery. No juniors, no training overhead, and no avoidable rework from basic engineering mistakes.

Hire Full-Stack Team › Our Tech Stack
SeniorOnly Teams
87-89%Test Coverage
9+Years Experience
MultiYear Engagements

TwinTix provides full-stack software development services staffed exclusively by senior engineers with 9+ years of production experience. The team specializes in React, Node.js, TypeScript, Next.js, and Astro for frontend development, with Node.js, Python, FastAPI, GraphQL, and serverless backends.

TwinTix maintains 87-89% test coverage as standard using Jest, Vitest, React Testing Library, and Cypress E2E testing. Clients benefit from multi-year engagement partnerships with engineers who work autonomously from day one, make architectural decisions, and ship production-ready code without training overhead.

Technologies include PostgreSQL, MongoDB, DynamoDB, Redis, Docker, Kubernetes, and AWS cloud deployment.

Why We Only Hire Senior Engineers

Junior developers need mentorship. That's valuable, but it's not what our clients are buying. They need engineers who can work autonomously from day one.

What You Get

  • Work autonomously without constant guidance
  • Make architectural decisions, not just implement tickets
  • Push back when something doesn't make sense
  • Ship production-ready code from day one

What You Don't Pay For

  • Training and mentorship overhead
  • Code reviews teaching basic patterns
  • Rework from inexperienced mistakes
  • Onboarding delays and learning curves

Our Full-Stack Technology Expertise

Everything needed to design, build, test, deploy, and maintain production software.

Frontend

  • React 18 (Hooks, Context)
  • TypeScript
  • Next.js / Astro
  • Tailwind CSS
  • State Management (Zustand/Redux)

Backend

  • Node.js / Express
  • Python / FastAPI
  • RESTful APIs / GraphQL
  • Microservices
  • Serverless (Lambda)

Database

  • PostgreSQL / MySQL
  • MongoDB / DynamoDB
  • Redis (Caching)
  • Database Design
  • Query Optimization

Testing

  • Jest / Vitest
  • React Testing Library
  • Cypress (E2E)
  • 87-89% Coverage Standard
  • TDD Methodology

DevOps

  • Docker / Kubernetes
  • CI/CD (GitLab/GitHub)
  • AWS Deployment
  • Monitoring & Logging
  • Infrastructure as Code

Tools

  • Git / GitHub
  • VS Code / WebStorm
  • Postman / Insomnia
  • Figma (Design Handoff)
  • Agile / Scrum

How We Build Full-Stack Applications

Senior engineers plan the system before writing code, then move through delivery with quality gates at every stage.

1

Architecture-First Planning

Define system architecture, data models, API contracts before writing code.

2

Component-Driven Development

Build reusable components, establish design system, maintain consistency.

3

Test-Driven Development

Write tests first, maintain 87-89% coverage, prevent regressions.

4

Continuous Integration

Automated testing, code quality checks, frequent deployments to staging.

5

Production Monitoring

Real-time error tracking, performance monitoring, proactive issue resolution.

Ready to Build With Senior Engineers?

Schedule an appointment. We'll review your product goals, stack, timeline, and delivery risks.

Schedule Appointment › No commitment required