Gauteng · Software · Home automation · Media

Modern engineering for data, homes and media.

HB SevenB designs, builds and integrates software, SQL Server data systems, home automation and media systems. We work on site across Gauteng and remotely across South Africa.

See the track record Contact us

What we do

Four practices, one engineering standard.

SQL Server and data

Data models, T-SQL and performance work for systems that must be right.

  • Schema design and data modelling
  • T-SQL development, tuning and query plans
  • Versioned migrations, tests and drift checks
  • SQL Server and PostgreSQL side by side

Software and integration

Services and tools that connect the systems you already own.

  • .NET, C#, Blazor, Python and TypeScript
  • APIs, background services and workflow engines
  • Single sign-in with two-factor authentication
  • Monitoring and maintenance consoles

Home automation

Home Assistant systems that stay safe, local and maintainable.

  • Home Assistant design, build and audit
  • Lights, pumps, gates and geysers with safety rules
  • Local-first control that keeps working without the cloud
  • Energy and solar monitoring

Media systems

Cameras, music and streaming that work together.

  • IP camera and NVR integration with Blue Iris
  • Stream health checks and AI alert set-up
  • Self-hosted music servers and casting to TVs
  • Generative and recorded audio tools

Track record in numbers

Systems we built and run.

200tables in one SQL Server data model, held together by 456 foreign keys
958automated tests passed by our SQL Server agent toolkit
259devices in a live Home Assistant installation we run and audit
28camera channels inventoried and stream-checked

Figures from our engineering lab and reference installation in Gauteng, October 2026. Read the details.

How we work

Engineering rules we keep on every job.

  1. Reversible changesEvery change has a written way back before it starts.
  2. Tests before releaseAutomated tests and an independent review before anything goes live.
  3. Safety rules for devicesLocks, gates, geysers and power need a person to confirm each action.
  4. Your data stays yoursLocal-first designs. Sensitive data is encrypted at rest.
  5. Written handoverA user guide and a technical reference with every system.
  6. AI-assisted, human-checkedWe build with modern AI tools, under strict tests and human review.

Have a system that must work properly?

Tell us what you run today and what must change.

Email hello@sevenb.top