Cloud platform
Backend services, ERP integration, user management, payment gateway integration and subscription workflows.
6 itemsAvailable
octopusOS · LOCATION INTELLIGENCE
Find a location
Resolve an IP address or domain with IP intelligence, then optionally compare it with your device's precise browser coordinates.
IP location · approximate
Browser · resolving
Device · resolving
DEVICE SIGNAL
Precise location
NETWORK SIGNAL
IP intelligence
Mission Control
Mission Control
Professional work across Selfmade Ninja, Academy, cloud platform engineering, security, labs and CTF development.
08Core workstreams
03Platform layers
02Security domains
01CTF ecosystem
Selfmade.ninja
KYC verification, payments, subscriptions, account lifecycle and access-control engineering belong to the application layer.
DELIVERY MAP
AcademySelfmade.ninjaFrappe / ERPPaymentsSubscriptionsLabsCTF Developmentweb-dumper
Architecture Explorer
Architecture Explorer
Application and cloud-platform concerns are separated. KYC belongs to Selfmade.ninja; it is not a cloud-platform component.
Selfmade.ninja applicationKYC · Payments · Subscriptions · Users
↓
Cloud PlatformBackend APIs · ERP · User management · Services
↓
Infrastructure & LabsContainers · Networking · TLS · Databases · CTF environments
Frappe / ERPNext
Business workflows, backend modules, persistence, APIs and operational integration.
Trust boundaries
Authorization is enforced at the backend; payment and identity state transitions are treated as security-sensitive.
Security Center
Security Center
Security work presented as engineering practice: attack surface, controls, trust boundaries and operational resilience.
Web & APIAuth · sessions · authorization · input validationACTIVE
IdentitySelfmade.ninja KYC verification and account stateACTIVE
PaymentsGateway callbacks · state transitions · retriesACTIVE
LabsIsolation · provisioning · networking · TLSACTIVE
CTFChallenge isolation · reset paths · live operationsACTIVE
ToolingRecon · header analysis · web-dumper researchACTIVE
Engineering Timeline
Engineering Timeline
A focused record of the professional work represented here.
- Cloud platform engineering
ERP backend, platform APIs, user management, payments and subscriptions.
- Selfmade.ninja application
KYC verification, payment integration, subscription lifecycle and access control.
- Selfmade Ninja Labs
Cloud lab environments, security infrastructure and development tooling.
- CTF development
Challenge authoring and isolated infrastructure for live security events.
- web-dumper
C-based saved web credential extraction research tooling.
Skills Matrix
Skills
Capabilities directly connected to the work represented in the professional portfolio.
SecurityWeb/API testing · AuthZ · threat modelling · secure integration review
BackendPHP · Python · Frappe/ERPNext · REST · SQL · background jobs
PaymentsGateway integration · callbacks · reconciliation · subscriptions
IdentityKYC integration · account lifecycle · verification state
InfrastructureDocker · Linux · networking · TLS · cloud lab provisioning
CTF & LabsChallenge authoring · isolation · resettable services · event operations
ToolingC · Python · reconnaissance · HTTP analysis · security research
EngineeringArchitecture · migrations · APIs · production hardening · incident triage
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No cross-site trackers to prevent
This portfolio loads no third-party scripts, fonts, analytics or embeds. Everything you see is served from one origin under a strict Content-Security-Policy.
SELFMADE NINJA
Where the work happens.
Selfmade Ninja Academy builds practical cybersecurity and engineering education; Selfmade Ninja Labs is the cloud lab platform underneath it. I work across both — securing and shipping the Academy platform, and engineering the lab environments the teaching depends on. This portfolio is served from that same stack.
About
Padmapriyan
0xD4rkEYe · Cybersecurity Engineer & Product Developer
RoleCybersecurity Engineer & Product Developer
OrganisationSelfmade Ninja Academy
SecurityWeb & API penetration testing
EngineeringPayments, identity, access control
LocationTamil Nadu, India
RuntimeZealPHP on OpenSwoole
Calendar
SunMonTueWedThuFriSat
Notes
Engineering Notes
Build the system. Attack the system. Fix what you find. A vulnerability is rarely a single bad line. It is a trust boundary that nobody wrote down - so I write them down: what crosses it, who verifies it, and what the code does when that check cannot be completed. The answer to the last question decides everything. A flow that fails open under load is not a resilient flow; it is an unauthenticated one waiting for a busy afternoon. Current focus - Web and API penetration testing, with emphasis on authorization - Payment, identity and access-control flows that must fail closed - CTF challenge design and event-grade challenge infrastructure - Reproducible security lab environments The interface is the operating system. The content is the portfolio.
Contact
Let's build something that fails closed.
Available for security assessment and penetration testing engagements, CTF challenge authoring and event infrastructure, and product engineering on payment, identity and access-control surfaces — including security review of an existing codebase or third-party integration.
System Settings
General
Configure how octopusOS behaves.
Startup
Boot animationShow the octopusOS startup sequence when the page loads.
Restore open windowsRemember the last opened application between visits.
Interface
Keyboard shortcutsCmd/Ctrl + K opens Spotlight · Esc closes any overlay
EnabledAbout octopusOSBuilt on ZealPHP + OpenSwoole · Version 2.0
Appearance
Choose how octopusOS looks.
Theme
AppearanceLiquid Glass · System
Effects
TransparencyUse Liquid Glass materials on the Dock, menus and sidebars.
AnimationsEnable window, Dock and interface motion.
Accessibility
Reduce motionMinimize animations and transitions.
Reduce transparencyUse opaque surfaces for improved legibility.
Desktop & Dock
Personalize the workspace, wallpaper, accent and Dock.
Wallpaper
Desktop wallpaperMonterey · Default
Wallpaper dimDarken the wallpaper to keep icons and windows readable.
Accent Color
System accentBlue · Default
Desktop
Show desktop iconsDisplay the Projects shortcut on the desktop.
Dock
Dock auto-hideHide the Dock until the pointer reaches the bottom edge.
Dock magnificationEnlarge Dock icons while hovering.
Dock sizeChoose a compact or generous Dock.
Network
Connection state used by the interactive system controls.
Connection
Wi-FiConnected · octopusOS network
BluetoothOff · Bluetooth disabled
Browser
Online statusChecking…
—Connection typeYour browser-reported network capability.
UnknownPrivacy & Security
This portfolio collects nothing. Everything below stays in your browser.
Privacy
Private browsing protectionReduce persistent browsing state and clear temporary session traces when the page is closed.
Block external trackingThere are no third-party analytics, pixels or trackers on this site. This switch keeps it that way.
Security
Secure external linksOpen external sites in a new tab with an isolated opener context (noopener, noreferrer).
Clipboard protectionNever request clipboard access unless a user action explicitly requires it.
Local Data
Stored preferencesTheme, wallpaper, Dock and security choices are stored only in this browser's localStorage.
Custom color
App Store
App Store
Every application in octopusOS. Open any of them from here.
ProjectsSecurity tooling, CTF infrastructure and platform engineering work.Portfolio
Location FinderLocation intelligence for IP addresses and domains, with optional precise device geolocation.Utilities · Location
TerminalInteractive shell. Type help to explore the whole portfolio.Utilities
NotesEngineering notes, and the reader for every Finder document.Productivity
CalendarMonth view with navigation and today highlighting.Productivity
ContactEngineering, security research and collaboration channels.Communication
System SettingsAppearance, wallpaper, Dock, network and privacy controls.System
Trash
Trash is Empty
Nothing to see here.
About Application
Properties