Hello, my name is Ioannis Papadoulis

Jul 2026 - Present

SmartRecruiters

Senior Application Security Engineer

• • Lead internal penetration testing of web applications, APIs, and microservices, and manage external pentest engagements end-to-end
• • Operate the bug bounty program: triage and validate external submissions, coordinate with researchers, and drive fixes with engineering
• • Assess security of AI-powered features and LLM integrations, targeting prompt injection, model misuse, and insecure AI-generated code
• • Threat modeling, security design reviews, and architecture assessments for new and existing services
• • Manual and automated secure code review across SAST, DAST, IAST, and SCA, routing findings through issue tracking
• • Own the vulnerability lifecycle from triage and prioritization through remediation tracking and verification

Jan 2025 - Jun 2026

project44

Offensive AppSec Engineer

• • Lead internal application penetration testing, define scope, execute tests, document findings, and retest to confirm fixes
• • Identify and validate security weaknesses, prioritize risk, and provide clear remediation guidance to engineering teams
• • Assess security of AI-powered features and LLM integrations, covering prompt injection, model misuse, and adversarial (red team) testing of LLM systems
• • Plan, coordinate, and support third-party application penetration tests, including scoping, execution support, and follow-up on findings
• • Run SAST and DAST activities, triage results, validate true positives, and track remediation progress
• • Drive threat modeling and security impact assessments for new features and RFCs, translate outcomes into actionable security requirements
• • Subject matter expert (SME) and primary point of contact for application security (AppSec) questions, concerns, and guidance across teams.

Mar 2024 - Jan 2025

project44

Sr IT Specialist

• • Owned investigation and resolution of complex customer issues, including root cause analysis and stakeholder updates
• • Identified suspected product defects, documented repro steps, and escalated to engineering for remediation
• • Led customer calls and improved documentation through technical notes and knowledge base articles

Jul 2021 - Feb 2024

Karhoo

IT Specialist

• • Partnered with engineering teams, contributing to internal projects and gaining hands-on experience with Go-based systems
• • Provided first and second line technical support for Marketplace and Connect partners, troubleshooting issues and coordinating escalations
• • Managed urgent incidents and partner-impacting issues, driving resolution and keeping stakeholders aligned with clear updates
• • Supported both technical delivery and partner relationships for a client portfolio valued at over €5M, building strong, long-term relationships and feeding partner insights into process improvements

2 yrs 6 mos

HCL Technologies

IT Specialist

• • Owned second line incident handling end-to-end, including in-depth troubleshooting and resolution coordination
• • Acted as escalation point for first-line support, coached analysts, and improved triage quality
• • Managed critical and high-severity incidents, handling escalation and end-user communication through closure
• • Supported overflow call and ticket handling, contributed to service readiness activities for EMEA

Jul 2020 - Jan 2021

Senior IT Analyst

• • Owned backlog and floor support priorities, drove tickets to resolution, and supported consistent SLA delivery
• • Trained and onboarded new joiners, improved internal documentation and knowledge base articles based on recurring issues
• • Served as SME for Service Desk file shares and supported go-live readiness for the EMEA region
• • Provided regular operational updates to stakeholders, including ticket trends, knowledge gaps, and training needs

Jan 2019 - Jun 2020

IT Analyst

• • Triaged, diagnosed, and resolved end-user incidents and requests across Windows, Office 365, VPN, browsers, and connectivity, meeting SLAs
• • Logged and tracked work in ServiceNow and call tracking systems, documented troubleshooting steps and outcomes for repeatability
• • Coordinated with internal resolver teams and vendors, escalated complex issues, and kept users updated through closure
• • Administered user access and exit controls, maintained and improved knowledge base articles for recurring issues and standard procedures

Oct 2018 - Dec 2018 · 3 mos

IKEA

IT Analyst

• • Triaged and prioritized incoming IT support cases, assigned or resolved issues within agreed SLAs, escalated when needed
• • Managed end-user communication through resolution, documented fixes, and troubleshooting steps in the shared knowledge base