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Johannesburg: Quality Reliability Engineer (QRE) (JHB Hybrid/Remote) posted by Datafin

Johannesburg: Quality Reliability Engineer (QRE) (JHB Hybrid/Remote) posted by Datafin

Posted on 2025-06-26 00:00:00

Employer Datafin
Category Other IT/Computer
Location Gauteng  / Johannesburg

Job Summary

Quality & Reliability Engineer (QRE) (JHB Hybrid/Remote)Engineering/Technical ~ IT – Software Development ~ IT – Infrastructure
Johannesburg – Gauteng – South Africa

ENVIRONMENT:
A revolutionary web-based application seeks the technical expertise of a Quality & Reliability Engineer (QRE) to ensure the platform delivers stable, secure, and high-quality software at pace. Serving as a bridge between Development, QA, and Operations, you will own the CI/CD pipelines, enforce quality gates, monitor reliability, and safeguard the platform against regressions, downtime, and technical debt. The ideal candidate will have strong experience with CI/CD tooling (e.g., GitHub Actions, CircleCI, GitLab CI), familiarity with cloud platform pipelines (e.g., Heroku Pipelines) & be proficient in Python and Shell Scripting (bonus: Django familiarity). You must also be comfortable with observability tools (e.g., Sentry, etc) and have a track record of delivering reliable, secure systems in a SaaS or FinTech environment.
DUTIES:
CI/CD & Deployment –
  • Maintain and improve continuous integration and delivery pipelines (GitHub Actions / Heroku).
  • Automate test, linting, type-checking, and coverage enforcement gates.
  • Deploy approved changes to staging and production environments.
  • Own rollback procedures and ensure safe release practices (e.g. feature flags, canary rollouts).
Observability & Incident Response –
  • Monitor production health (Sentry, logs, performance dashboards).
  • Track SLIs/SLOs (e.g., error rates, MTTR, CFR) and report reliability metrics monthly.
  • Prepare runbooks for common incidents; support the incident commander rotation.
Test Infrastructure & Quality Gates –
  • Maintain and evolve automated test suites (Unit, Integration, Acceptance).
  • Own flaky test backlog and test fixture/data generation tooling.
  • Collaborate with Developers to ensure code is testable, isolated, and regression-safe.
Security & Platform Hardening –
  • Integrate security scans, dependency checks (e.g., Dependabot), and audit trail features into CI/CD.
  • Partner with the Security Champion to ensure releases meet internal standards and SOC 2 requirements.
  • Contribute to infrastructure security posture (e.g., IAM scoping, key management, release audit logs).
Developer Experience & Release Tooling –
  • Improve Developer productivity through tooling, sandbox environments, and local parity.
  • Reduce cycle time from PR to production by identifying bottlenecks in the build or test stages.
Metrics you will own:
CI duration and reliability.
Change Failure Rate (CFR) and Mean Time to Recovery (MTTR).
Defect escape rate and flaky test volume.
Sentry alert volume and resolution latency.
Release cadence and deployment success rate.
REQUIREMENTS:
  • Strong experience with CI/CD tooling (e.g., GitHub Actions, CircleCI, GitLab CI).
  • Familiarity with cloud platform pipelines (e.g., Heroku Pipelines).
  • Proficient in Python and Shell Scripting (bonus: Django familiarity).
  • Experience maintaining test automation frameworks.
  • Comfort with observability tools (e.g., Sentry, etc).
  • Track record of delivering reliable, secure systems in a SaaS or FinTech environment.
Knowledge/Experience in the following areas will be beneficial, but not required:
Experience with feature flag systems (e.g., Unleash, LaunchDarkly).
Understanding of SOC 2 / ISO 27001 controls in CI/CD.
Exposure to data privacy and multi-tenant architectures.
Experience running post-mortems and tracking incident action items.
ATTRIBUTES:
Relentlessly pragmatic: You optimise for stability over perfection.
Systems thinker: You see failure modes before they happen.
Quality advocate: You know tests are not overhead, theyre leverage.
Security conscious: You think in terms of blast radius and defence-in-depth.
Quietly powerful: You make every Engineer faster without becoming a bottleneck.
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