Engineering expertise.
Delivered.

Hall Labs is a software engineering consultancy and app studio. We bring 15+ years of backend and systems experience to consulting engagements, and build purpose-driven mobile apps on Google's platforms.

Get in touch

What We Do

Two areas of focus

Senior-level engineering consulting for complex backend problems, and consumer mobile apps built for Wear OS and Android.

Software Consulting

Backend engineering and architecture consulting with 15+ years of experience across APIs, microservices, and distributed systems. Available for select engagements on a contract basis.

Backend Systems Architecture APIs Technical Analysis

Mobile Apps

Wear OS and Android applications built for niche communities. We focus on tools for outdoor athletes and pilots — starting with Riser, our variometer for paragliders.

Wear OS Android Kotlin Google Play

Consulting

15+ years of backend engineering

From greenfield builds to scaling existing systems, we bring deep hands-on experience to every engagement.

Hall Labs provides senior-level backend engineering consulting. We've spent over a decade and a half building APIs, microservices, and production systems across the full product lifecycle — from first commit to scaling to dedicated teams.

We work best on hard problems: greenfield product builds, architecture redesigns, system migrations, and technical analysis. We're comfortable working autonomously, leading small teams, or embedding as a senior contributor on an existing team.

  • Backend Architecture — API design, microservices, event-driven systems, and infrastructure planning
  • Greenfield Development — Solo builds from zero to production, designed to scale into full team ownership
  • Technical Analysis — Codebase review, architecture assessment, and deep-dive investigation
  • AI Integration — OpenAI APIs, MCP protocol, and building AI-powered product features
  • Full Stack — Node.js, Ruby on Rails, Python, TypeScript, GraphQL, PostgreSQL, AWS, Kubernetes

Apps

Riser

A variometer for paraglider pilots. Real-time lift and sink data on your Pixel Watch — no extra hardware needed.

Riser turns your Wear OS watch into a precision variometer. It uses the built-in barometric sensor to deliver Kalman-filtered vertical speed with sub-second response times, plus audio and haptic feedback so you can keep your eyes on the sky.

The companion Android app automatically syncs your flights from the watch and lets you export FAI-standard IGC files for sharing, analysis, or competition logging.

Wear OS First

Built for Pixel Watch with companion phone app for flight sync

Audio & Haptic Vario

8 sound profiles and 4 vibration patterns — works in DND mode

Smart Detection

Auto-detects takeoff and landing with always-on barometer monitoring

IGC Export

FAI-standard flight logs with GPS track, pressure altitude, and security hash

Riser
+2.4
m/s
1,240m ALT
24km/h GND

Contact

Let's talk

Interested in a consulting engagement or want to learn more about Riser? Reach out.

info@halllabs.co