Mārupe, Latvia · UTC+3
I build web apps end to end — and the parts that touch real hardware.
Kārlis Kociņš, full-stack developer. Next.js, TypeScript and PostgreSQL on the software side; Home Assistant, Zigbee devices and managed switches on the other. I like projects where the two meet.
StatusAvailable
- Currently building
- AutoWeb — booking system for car workshops
- Core stack
- Next.js · TypeScript · Node.js · PostgreSQL
- Hardware side
- Home Assistant · Zigbee · VLANs · Docker
- Certified
- CompTIA Network+
- Education
- BSc Datorsistēmas, Riga Technical University
11
public repositories
2
published Home Assistant add-ons
2
managed switches, VLAN trunked
Network+
CompTIA certified · BSc from RTU
Selected work
All repositories →Homelab & networking
Everything below runs in my own home. It is where I learn the parts of the stack a web project alone doesn't teach.
Home Assistant
- ·Installed and configured from scratch
- ·Smart switches, lights and sensors integrated
- ·Remote access and mobile notifications
- ·Energy monitoring and optimisation
Devices & automations
- ·Zigbee and Wi-Fi devices paired and tuned
- ·Morning, night and presence-based routines
- ·Motion and door sensors for security
- ·Voice assistant and scene control
Network
CompTIA Network+
- ·Two managed switches installed and configured
- ·VLAN trunking: internet + IPTV over one cable
- ·Segmentation for security and performance
- ·Switch management, monitoring, troubleshooting
Add-on development
- ·Two published Home Assistant add-ons
- ·Containerised with Docker, supervised install
- ·External APIs bridged into the HA event bus
- ·Vaultwarden and other community add-ons run locally
Stack
Languages
- TypeScript
- JavaScript
- Python
- HTML & CSS
- Bash
Frontend
- React
- Next.js
- Tailwind CSS
- Framer Motion
- Radix UI · Vite
Backend & data
- Node.js
- PostgreSQL
- Prisma
- Flask
- NumPy
Infrastructure
- Docker
- Linux
- Git · GitHub Actions
- Vercel
- Home Assistant
Let's build something.
Open to full-stack work, freelance projects and collaborating on open source — especially anything involving Home Assistant.
kocins36@gmail.com- Phone+371 27 090 500
- GitHubKarlisKocins
- LinkedInKārlis Kociņš
- X@kocins36
- Based inMārupe, Latvia