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Senior Code Review Expert

Job in Johannesburg, 2000, South Africa
Listing for: EXOGROUP CONSULTING SERVICES
Full Time position
Listed on 2026-02-18
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support, Data Security
Job Description & How to Apply Below

We are seeking a senior Code Review Expert to act as a technical quality, security, and compliance gatekeeper
. C
ritically assess, challenge, and approve code before it reaches production in financially and regulatorily sensitive systems
.

Key Responsibilities
  • Review backend services, APIs, bots, integrations, and infra-adjacent code
Identify
  • Security vulnerabilities
  • Logic and financial correctness issues
  • Race conditions, async failures, and edge cases
  • Performance and scalability risks
  • Review crypto-specific logic (wallets, signing flows, reconciliation, balances)
  • Enforce secure coding standards and architectural boundaries
  • Act as a merge gate for production deployments
  • Provide clear, written feedback with risk severity (low / medium / critical)
  • Support incident reviews and post-mortems where code is involved
Required Experience
  • Proven experience reviewing production-grade code in sensitive systems
  • Strong background in security-aware development
Deep understanding of:
  • Async systems and concurrency
  • Error handling and failure modes
  • Database correctness and consistency
Experience with one or more of:
  • Ability to reason about system-level impact
    , not just individual files
  • Comfortable pushing back on risky or unclear implementations
Highly Desirable (Strong Advantage)
  • Fin Tech, crypto exchange, payments, or Reg Tech experience
  • Trading systems / market-making logic
  • Exposure to Dev Ops / CI/CD / production deployment workflows
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Position Requirements
10+ Years work experience
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