Security Architect

Sabenza IT
Gauteng
Full-time
Posted 1 hour ago
Full-time IT & Software
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Responsibilities

  • Own the end-to-end security architecture for a large-scale, customer-facing mobile banking platform.
  • Define and govern security across mobile apps, APIs, identity platforms, cloud infrastructure, backend services, shared platforms, and DevSecOps pipelines.
  • Architect strong customer authentication using PIN, biometrics, device-bound cryptographic keys, risk context, and transaction-level authorization.
  • Design PIN-based authentication models where PINs unlock cryptographic keys and are never stored or transmitted.
  • Define biometric-first authentication using Face ID, Touch ID, and platform biometrics through secure enclave and hardware-backed mechanisms.
  • Govern secure use of mobile keystores and secure enclaves, including iOS Secure Enclave and Android Hardware Keystore.
  • Ensure biometrics are used only for local cryptographic key release and never treated as raw credentials.
  • Define integration with enterprise key vaults and HSMs for signing, encryption, certificate handling, and key lifecycle management.
  • Own OAuth 2.0, OpenID Connect, PKCE, secure token storage, token rotation, and device-bound session models for mobile and web channels.
  • Define API, Backend-for-Frontend, and service security patterns aligned to Zero Trust principles.
  • Lead threat modelling across onboarding, authentication, payments, card management, account servicing, and other sensitive customer journeys.
  • Translate threats into architecture patterns, security controls, non-functional requirements, and architecture decision records.
  • Embed Security-by-Design into HLDs, LLDs, architecture decision records, release governance, and delivery assurance forums.
  • Define DevSecOps guardrails including SAST, DAST, dependency scanning, secrets management, container scanning, IaC security, and secure release gates.

Requirements

  • Mobile security
  • Authentication
  • Identity and access
  • Cryptography
  • API and platform security
  • Fraud and risk
  • DevSecOps
  • Cloud and infrastructure
  • Threat and assurance
  • AI security
  • Senior-level security architecture experience in digital banking, payments, fintech, financial services, or other regulated customer-facing digital platforms.
  • Strong hands-on understanding of mobile security, API security, identity, cryptography, cloud security, DevSecOps, platform security, fraud controls, and operational resilience.
  • Ability to translate business risks and threat scenarios into pragmatic architecture decisions, technical controls, delivery guardrails, and measurable non-functional requirements

Interested in this role?

You'll apply on Sabenza IT's own site before 18 October 2026. Put your most relevant experience at the top of your CV first.

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Job details
Job TypeFull-time
LocationGauteng
CategoryIT & Software
Posted4 October 2026
Closing Date18 October 2026
Sabenza IT
Gauteng

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