Addepar

Offensive Security Engineer

Addepar

full-time

Posted on:

Origin:  • 🇬🇧 United Kingdom

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Job Level

Mid-LevelSenior

Tech Stack

AWSCloud

About the role

  • Own offensive engagements, including red teams and assumed‑breach exercises, adversary emulation, and goal‑driven purple team work aligned to real threats and business impact
  • Test applications and APIs end‑to‑end: authNZ flows, business logic, and modern web patterns; deliver clear PoCs that demonstrate impact and paths to fix
  • Evaluate cloud and infrastructure attack paths, such as identity/IAM escalation, network segmentation, secrets exposure, container/orchestration risks and validate exploit chains safely
  • Turn findings into action: triage and validate vulnerabilities, partner with engineers on pragmatic remediation, verify fixes, and prevent class‑repeat issues by collaborating with AppSec and CloudSec to build secure‑by‑default patterns
  • Act as an offensive security subject-matter expert to help triage issues with our SOC
  • Mentor and coach junior Security Engineers through their assessments, and support our Security Champions
  • Identify, validate, and triage vulnerabilities from multiple sources and guide remediation to improve overall security posture

Requirements

  • 4+ years of experience in an information security-related role
  • Bachelor’s degree or higher, preferably in Computer Science, Engineering, or a related field
  • A passion for security and a desire to work on a high-tempo, supportive team where you can continue learning on the job
  • Strong understanding of networking (including the OSI model), HTTP protocol, and core Application Security principles
  • Ability to build strong relationships and work effectively across teams and functions
  • Excellent verbal and written communication skills, with the ability to deliver results under time-sensitive conditions
  • Proficient in one or more programming languages, including at least one scripting language
  • Hands-on penetration testing experience
  • OSCP (or similar) certification
  • Experience with AWS is a strong plus
  • CTF participation is a bonus
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