Hybrid Technical Security Expert

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About the role

  • Technical Security Expert at Spendesk enhancing security for one of Europe's fastest-growing fintechs. Collaborating with teams to embed security in every project while staying ahead of threats.

Responsibilities

  • Champion security-by-design: Advise and collaborate with development and infrastructure teams to embed security best practices from the start of every project.
  • Lead technical security reviews: Conduct in-depth code reviews (TypeScript, Node.js, Python) to uncover and remediate vulnerabilities.
  • Analyze third-party libraries and dependencies, including reverse engineering when needed.
  • Review Infrastructure-as-Code (Terraform) and multi-tenant AWS setups.
  • Drive security audits & testing: Plan and execute penetration tests and intrusion campaigns on systems, applications, and internal tools (CI/CD, authentication, etc.).
  • Propose actionable remediation strategies to strengthen our defenses.
  • Own security monitoring: Oversee and maintain our SIEM (ElasticSearch, multi-node Linux).
  • Develop automation tools and scripts for proactive threat detection and incident response.
  • Shape security culture: Help update policies and procedures, and raise awareness across teams through coaching, workshops, and communication.
  • Stay ahead of threats: Monitor emerging vulnerabilities and attack techniques, and recommend adaptive defense strategies.

Requirements

  • Extensive technical experience in information security (typically 8+ years), with hands-on expertise in at least two of the following: code auditing (TypeScript/Node.js/Python), infrastructure security (AWS/Linux/Terraform), penetration testing, or SIEM management.
  • Deep understanding of secure development practices and modern web architectures (microservices, cloud/PaaS/SaaS).
  • Strong scripting ability (Python, Bash, etc.).
  • Experience with ElasticSearch in production environments.
  • Excellent communication and collaboration skills; ability to explain complex security concepts to diverse audiences.
  • Fluent English.
  • Nice-to-haves:
  • Experience with reverse engineering and analysis of minified/obfuscated code.
  • Knowledge of security standards (ISO 27001, OWASP, etc.).
  • Experience with GCP, Datadog, or Snowflake.
  • French language skills.

Benefits

  • Flexible on-site and remote policy
  • Lunch 60% funded by Spendesk (Swile Card)
  • Alan Premium health insurance
  • A Gymlib pass to let off steam after a productive day at work
  • Access to Moka.care for emotional and mental health wellbeing
  • Latest Apple equipment
  • Great office snacks to fuel your day
  • A positive team to work with daily!

Job title

Technical Security Expert

Job type

Experience level

SeniorLead

Salary

Not specified

Degree requirement

No Education Requirement

Location requirements

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