✦ Privacy-First by Default | Secure Software Full-Circle Development [SSDLC] | Embedded Application-Security (AppSec) | Zero-Trust Architecture

callistoDev

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Security-First Full-Circle Development with built-in AppSec and Pentesting at every layer of the architecture. Security assessment and vulnerability management across information systems, Web-Applications, and Infrastructure - with a management strategy developed for their timely and effective remediation.


Pipeline of Work:
  • Discovery of the Project
  • Market & Business Analysis
  • Designing API Architecture and Infrastructure of Web-Application
  • UX/UI-Design & Preparing Components for Development
  • Backend Development: architectural layers (Domain / Repository / Service / Validation / API), dependency management with SCA verification, Environment Security, Middleware, Core Logic, Rate Limiter, Atomic Updates, Public / Admin API separation, Integrations, Cron Workers, Admin Panel and etc.
  • Error Tracking & Logging
  • QA (Unit | Integration | E2E)
  • Security Analysis (White-Box): STEP 1 - Penetration Testing (SAST / DAST)
  • Threat Modeling | Registry of Vulnerabilities | Report [1]
  • Hardening + Attack Surface Remediation
  • Security Analysis (White / Gray-Box): STEP 2 - Penetration Testing (SAST / DAST / AI)
  • Threat Modeling | Registry of Vulnerabilities | Report [2]
  • QA (Unit | Integration | E2E)
  • Security Analysis (White / Gray-Box): STEP 3 - Penetration Testing (SAST / DAST / SCA / AI)
  • Threat Modeling | Registry of Vulnerabilities | Report [3]
  • Hardening
  • Backend Continuation: Database Migrations, Domain & Validation Layer, Repository & Service and etc.
  • Integration UX/UI & Frontend Development: frontend dependencies configure, API Client, Public API integration, State Management, UI Components, Design-System integration and configuration, Layouts, ThemeMode, i18n (multi-lang support) and etc
  • Security Analysis (Gray-Box): STEP 4 - Penetration Testing (SAST / DAST / SCA / AI)
  • Threat Modeling | Registry of Vulnerabilities | Report [4]
  • Deployment and Production DevSecOps Support
  • Post-Launch System Infras (WAF / NGFW) & Monitoring (EDR / SIEM / + SOAR) (on request)
  • Security Analysis (Full Black-Box): STEP 5 - Penetration Testing (SAST / DAST / SCA / AI)
  • Threat Modeling | Registry of Vulnerabilities | Actionable Report [5]
  • General Analysis and Assessment of Project Architecture
  • Documentation (For compliance, risk-management, and technical auditors for example) — consolidating key aspects of the project and providing a technical description of API architecture, implemented security mechanisms, business logic, and platform development plan according to strategy
  • Preparation of Additional Resources (Whitepaper / Pitch-Deck / Tech Q&A and others)
  • Technical Support (UTC-4)
*Stack is tailored per task.
Example of the latest project: TypeScript, Node.js, React/Next App-Router 16, Postgres + Prisma (Docker / Compose (+ Redis, Adminer)), Socket, Solana Anchor (Rust), Sentry, Grafana + Prometheus


Other Directions:
  • Application Security as a standalone service: Security architecture review, service readiness assessment, DAST-scanners & bug-bounty report analysis, remediation guidance, task creation & fix verification, WAF correlation rule tuning, SSDLC process building, security policy authoring, developer training & consulting
  • Offensive Security (Red Teaming): Web-Application Penetration Testing (White / Gray / Black-Box: SAST / DAST / SCA), Attack Surface Assessment (OSINT, Networks, Active Directory, Cloud Security, Social Engineering), Static Code Analysis and Vulnerability Remediation
  • Defensive Security (Blue Teaming): SOC L1-3, Threat Hunting, Incident categorization, Incident-Response, Threat Intelligence, Post-analysis

*Mandatory for projects and services where AI was used in development for example.


Also Available:

  • White-Label (SaaS) with rebranding
  • Deploy-Ready (Ready-Made) Solutions with source code transfer (Unlimited for commercial use)


Confidentiality:
  • NDA signed prior to any engagement
  • No personal data collected or stored
  • Project details are not disclosed to third parties
  • Authorization (by negotiation)

NDA-Protected | XMR/BTC accepted


Contacts:

Telegram: @callistoPrivate
Email: [email protected]
Matrix (Element): on request


Other possibilities - on request.

Detailed answers to constructive questions in DM/PM Telegram or by email.
Other channels of connection - also on request.

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