JA Jobyer Ahmed
Jobyer Ahmed

Jobyer Ahmed

Cybersecurity Expert OSCE3 • OSCP • CNVP

Jobyer Ahmed is the founder and cybersecurity professional at Bytium LLC. He works across offensive and defensive security, including penetration testing, red-team operations, and vulnerability management, with a focus on practical and audit-ready security improvements.

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Services

App Pentesting

Manual web, mobile, and API pentests to uncover authentication, logic, and injection flaws. OWASP Top 10 coverage with prioritized fixes.

Network Pentesting

External & internal network pentesting to find misconfigurations, exposed services, and lateral-movement paths (incl. AD/VPN).

Vulnerability Scanning

Continuous vulnerability scanning & validation across apps and infrastructure. Findings triaged with CVSS severity and remediation guidance.

Cloud Security Audit

AWS / Azure / GCP configuration review: IAM, networking, storage, encryption, logging. CIS Benchmarks & best-practice hardening.

Red Teaming

Adversary emulation using MITRE ATT&CK TTPs—from phishing and initial access to objectives— with replayable evidence and blue-team drills.

Security Hardening

Secure configurations for web, server, and cloud systems, covering IAM, EDR, logging, and backups aligned with CIS/NIST standards.
Security audits, pentesting, and strategic consulting — slots open. Book a call

What You Can Expect

  • Senior-led testing with OSCE3-level expertise (no junior hand-offs)
  • Clear, actionable reports with prioritized fixes and retest included
  • Business-focused findings that map to risk, not just CVSS
  • Fast turnaround and responsive comms in your time zone
  • map[Flexible scope:web, mobile, API, cloud, and network]
  • NDA-friendly; discreet and security-first engagement process
  • Mapped to ASVS, NIST, and CIS
  • Branded executive summary and full technical report (on request)
  • Priority technical support and remediation guidance with SLAs
  • Optional Declaration of Security Testing (date/scope, renewable)

Backed by research: CVEs & talks

CVE-2024-8784 CVE-2024-8945 CVE-2024-8867 RISE CRM 3.7.0 - SQL Injection Exploit See all

How it works

Scope

Quick scoping, access, and NDA. Define targets and timelines.
0–1 day

Test

Manual testing with evidence. Stand-ups as needed.
2–7 days

Report & Retest

PDF report, review call, and one free retest.
1–2 days

Pricing

Most popular

App Pentesting

Web/app/API testing, OWASP Top 10, report + retest.
  • Manual testing for web, mobile, and APIs
  • OWASP Top 10 + business logic coverage
  • Mapped to ASVS, NIST, and CIS
  • PDF report + remediation plan
  • Review call included
  • One free retest
from $ 1,250 per project
Request quote

Network Pentesting

External/Internal, AD paths, remediation guidance.
  • External and internal testing, including AD paths
  • Config and exposure review
  • PDF report + remediation plan
  • Review call included
  • One free retest
from $ 1,050 per project
Request quote

Vulnerability Scanning

Web/app/API testing, OWASP Top 10, report + retest.
  • Authenticated/unauthenticated scans (scope dependent)
  • Manual validation of high/critical findings
  • CVSS triage and remediation guidance
  • PDF summary
  • Retest available
from $ 600 per project
Request quote

Remote Support

Security support, hardening, Web support.
  • Advisory blocks for security and hardening
  • Microsoft 365/Google Workspace Support
  • WordPress security and hardening
  • Server and network hardening
from $ 200 per project
Request quote
Download a sample report

Testimonials

“Pinpointed critical flaws and provided clear remediation steps.”

— CTO, SaaS startup

“Professional, thorough, and business-focused.”

— Head of Engineering, Fintech

“As always, fast and professional delivery. Highly recommended.”

— CISO, E-commerce

“Is eager to work and is delivering a good result.”

— CTO, Retail

FAQ

Do you sign an NDA, MSA, and DPA?
Yes. I can sign your standard NDA/MSA/DPA or provide mine.
Is a retest included?
Yes. One free retest is included in pentesting packages within 30 days.
Do you map findings to ASVS, NIST, and CIS?
Yes. Reports include mappings on request.
How do you access cloud environments?
Temporary least-privilege accounts, VPC/IP allow-listing, and time-bound access. No persistent keys.
Do you test staging or production?
Prefer staging where possible; production tests are coordinated and safe-listed with change windows.
What are typical timelines?
Scope: 0–1 day, Test: 2–7 days, Report & Retest: 1–2 days, depending on scope and access.
What are payment terms?
50% upfront to schedule, 50% on delivery; net-15/30 for approved vendors.
Do you provide a verification badge?
An optional declaration and verification badge are available post-engagement.