FJK
FJK Group

Intelligent systems,
engineered and secured.

A consulting firm shipping AI agents and intelligent applications for organizations that demand precision. We build what you need next, and stress-test what already runs.

OSCP badge
OSCP
Offensive Security
CRTO badge
CRTO
Zero Point Security
Fortune 100
Engagement experience
FedRAMP · PCI
Compliance-grade testing
AI · Agents
Production deployments
Federal
NSA · IRS engagements
Services

Three disciplines.

Most firms hand you a deck. We hand you a working system, a tested perimeter, or both. Every engagement is led directly by a senior practitioner.

01

AI Solutions

Production-grade automation and agents that move revenue.

  • Custom agent design & deployment
  • Outbound sales & messaging agents
  • Workflow automation across tools
  • RAG & knowledge systems
  • AI-powered web & mobile applications
  • LLM integration & evaluation
  • Voice, vision & multimodal pipelines
  • Internal copilots & ops tooling
02

Engineering

Bespoke software when off the shelf does not fit.

  • Full-stack web applications
  • Mobile apps (React Native / native)
  • Data pipelines & ETL at scale
  • Cloud architecture (AWS / Azure)
  • Kubernetes & CI/CD modernization
  • API design & integration
  • Computer vision applications
  • Technical due diligence
03

Cybersecurity

Adversarial expertise applied to your most critical assets.

  • Web & API penetration testing
  • Mobile application testing (iOS / Android)
  • External & internal network testing
  • Assumed-breach & red team operations
  • Social engineering & physical assessments
  • FedRAMP & PCI compliant pentests
  • DevSecOps & secure SDLC hardening
  • Vulnerability program design
Capabilities

Built on a track record that is measurable.

500+
applications managed across an enterprise vulnerability program
50,000
vulnerabilities triaged weekly at federal scale
250%
deployment efficiency gain via GitLab CI/CD modernization
99%
actuator detection rate for cloud attack scenarios (NSA)
Selected stack
Burp Suite ProCobalt StrikeSliver C2HavocMetasploitBloodHoundNetExecImpacketMimikatzResponderNucleiNmapFrida · MobSFHashcatGhidraVolatilityPacu · ScoutSuiteProwlerNessus · QualysSplunkMITRE ATT&CKAnthropicClaude Agent SDKOpenAI Agents SDKHermesModel Context ProtocolLangChain · LangGraphVercel AI SDKPythonTypeScriptNext.jsReact NativeAWS · AzureKubernetes · OpenShiftGitLab CI/CDPostgreSQLDask · PySpark
Partnerships

Trusted by and partnered with real firms.

FJK Group works alongside specialist firms across offensive security and e-commerce. Engagements often run jointly to give clients a single point of accountability without sacrificing depth in any discipline.

Interested in a partnership
Founder
Francis Kim

Meet Francis.

Francis founded FJK Group to bring senior grade AI engineering and cybersecurity to organizations that have outgrown generic consultancies. His work spans federal clients, Fortune scale enterprises, and venture backed product teams.

Every engagement is led, and largely executed, by Francis directly.

OSCPCRTOB.S. CS · UMD ACESLinkedIn ↗
  1. 2024 to Present
    Senior Ethical Hacker
    Schellman

    Web, API, mobile, network, physical, and social engineering engagements. FedRAMP and PCI compliant pentests.

  2. 2022 to 2024
    Cybersecurity Engineering Consultant
    Deloitte · IRS

    Led DevSecOps modernization across a federal SDLC. Aligned to the Zero Trust Maturity Model. Vulnerability program engineering, Python automation, and large scale data wrangling for federal clients.

  3. 2021 to 2022
    Security Researcher
    National Security Agency

    OpenC2 cloud actuator development. Featured in NSA publication.

  4. 2018 to 2022
    B.S. Computer Science
    University of Maryland · ACES Honors
Engage

Let's build the
next engagement.

Share a few details and Francis will respond within one business day. All inquiries are confidential.

By submitting you consent to confidential review by FJK Group.