KB Interactive Systems

Krasimir BorisovKBIS.dev

Microsoft-certified cloud and infrastructure engineer. I design and operate enterprise systems, and engineer my own consumer software, now live on Google Play and the Microsoft Store.

01 · About

Infrastructure meets innovation

Enterprise infrastructure and independently shipped software, built to the same engineering standard.

I design and operate the infrastructure that keeps large organisations running, and I bring the same engineering discipline to the software I build and publish independently.

Based in Solihull, UK, I am an IT and cloud infrastructure professional specialising in Microsoft Azure, hybrid environments, application deployment and endpoint management across large and complex estates.

I hold a Master's in Computer Engineering and thirteen professional certifications, supported by five years designing and operating systems built to scale, stay secure and remain maintainable.

I also design and ship consumer software end to end: a zero-knowledge encrypted file vault, a native TV tracker and a cross-platform internet radio app, each built on lean, cost-efficient architectures. Two are published on Google Play and the Microsoft Store.

This work runs under KB Interactive Systems (KBIS), where enterprise infrastructure experience and product engineering come together.

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Professional Certifications
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Years in the IT Sector
Master's
Computer Engineering
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Live Store Listings
02 · Projects

Things I've built

Personal projects applying enterprise-grade thinking to consumer software problems.

🔒 ◷ In development

Tether

Encrypted File Vault · Android

A zero-knowledge encrypted file vault. Every file is encrypted on-device with AES-256-GCM before anything reaches the cloud, so only ciphertext ever leaves the device. PBKDF2 key derivation (310,000 iterations), hardware-backed Android Keystore, biometric unlock, and Google Drive sync.

KotlinJetpack ComposeAES-256-GCMPBKDF2Android KeystoreDrive API
  • On-device AES-256-GCM encryption
  • Biometric unlock & Drive sync
  • Multi-device vaults & orphan detection
  • Play Store release
📺 ● Live

TV Index

TV Show Tracker · Android & Windows

A native TV show tracker that replaced a £30/month AWS backend with a zero-cost architecture on the TVmaze API and a local Room database. Live search, drag-to-reorder watchlist, per-episode tracking, an On Tonight tab, push notifications before air time, and a cast/Person explorer.

KotlinRoom DBRetrofitWorkManagerTVmaze API£0 backend
  • Live search & drag-reorder watchlist
  • Watched tracking & On Tonight tab
  • Push notifications & cast browsing
  • Shipped on Play Store & Microsoft Store
📻 ● Live

Radio Box

Internet Radio · Android & Windows

A cross-platform internet radio app streaming from the Radio Browser API with a 3-server fallback. True background playback via a native foreground service, MediaSession integration for car dashboards and watches, station discovery across 14 genres and 21+ countries, favourites, and custom stations.

Capacitor 5Java (Android)MediaSessionVanilla JSRadio Browser API
  • Background playback & media controls
  • 14 genres · 21+ countries · search
  • Car/watch integration & favourites
  • Shipped on Play Store & Microsoft Store
☁️

Hybrid Cloud Infrastructure

Design, deploy, and maintain hybrid Azure and on-premise infrastructure in enterprise IT environments, covering endpoint management, identity, compliance, and application delivery at scale.

AzureMicrosoft 365IntuneJAMF Pro
🌐

KBIS.dev

This portfolio and development home base. A single-file, zero-dependency static page: fast, self-contained, and instantly deployable anywhere. No frameworks, no build step.

HTML5CSS3Vanilla JSStatic hosting
03 · Certifications

Professional certifications

13 industry certifications across Microsoft, CompTIA, and JAMF, covering cloud architecture, security, identity, and endpoint management.

Microsoft 365 Administrator Expert
Microsoft Certified
Azure Solutions Architect
Microsoft Certified
Windows Server Hybrid Administrator
Microsoft Certified
Azure Network Engineer Associate
Microsoft Certified
Teams Administrator Associate
Microsoft Certified
Azure Administrator
Microsoft Certified
Power Platform Fundamentals
Microsoft Certified
Azure AI Fundamentals
Microsoft Certified
Security, Compliance & Identity Fundamentals
Microsoft Certified
Azure Fundamentals
Microsoft Certified
CompTIA A+
CompTIA Certified
CompTIA Network+
CompTIA Certified
JAMF Pro Certified Associate
JAMF Certified
Microsoft CompTIA JAMF
04 · Skills

Technical expertise

Spanning cloud architecture, endpoint management, and native software development.

Cloud & Infra

  • Microsoft Azure (IaaS, PaaS, networking)
  • Microsoft 365 Administration
  • Azure Active Directory / Entra ID
  • Hybrid environment design
  • Windows Server administration

Endpoint & Device

  • Microsoft Intune (MDM/MAM)
  • JAMF Pro, Apple Mac estate
  • Application packaging & deployment
  • Security & compliance policies
  • 1st & 2nd-line support

Software Dev

  • Kotlin, Android native
  • Java, Android services
  • Capacitor, cross-platform
  • HTML5 / CSS3 / JavaScript
  • Git & REST API integration

Leadership

  • Strategic IT planning
  • Cross-functional collaboration
  • Project & priority management
  • Research & development
  • Data protection & compliance
05 · Contact

Let's build something together

Whether it's cloud infrastructure, native apps, or anything in between, I'm always open to interesting conversations and collaboration.