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Senior software quality engineer (automation, performance & resilience)

Coventry
Vestir Sourcing Ltd
Quality engineer
Posted: 20 October
Offer description

About the role

We’re looking for a Senior Software Quality Engineer to own test strategy end-to-end for backend services. You’ll build scalable automation and performance frameworks, integrate them into CI/CD, and validate resiliency and operational readiness across AWS/Azure environments. You’ll partner closely with engineering, SRE, and product to enable fast, reliable releases.


Key responsibilities


Strategy and planning

* Own test strategy, planning, and estimation for services and programs
* Define quality gates, risk-based coverage, and release-readiness criteria


Automation and quality engineering

* Design and maintain unified automation frameworks (Java, Cucumber, Robot Framework)
* Build API and integration tests (Postman), reduce flakiness, and improve maintainability
* Standardize builds (Gradle) and containerize test tooling (Docker)


Performance engineering

* Design, execute, and analyze load/stress/soak tests with Gatling
* Model realistic workloads, establish SLOs, and provide tuning recommendations
* Track throughput, latency (P95/P99), error budgets, and capacity signals


Resilience and operational readiness

* Run chaos tests with Litmus; validate failure handling, timeouts, and fallbacks
* Verify backup/restore and disaster recovery objectives (RTO/RPO)
* Lead game-days and resilience drills; document runbooks and playbooks


Observability and feedback loops

* Instrument and monitor with Prometheus, Grafana, and New Relic
* Wire test results and service telemetry into dashboards and alerts
* Enable data-driven go/no-go decisions with objective quality signals


CI/CD and DevOps integration

* Integrate tests into pipelines (Git/GitHub), enforce quality gates, and parallelize execution
* Support trunk-based development, shift-left checks, and stable environments


Collaboration and enablement

* Partner with developers, SRE, and product to triage, root-cause, and prevent defects
* Mentor engineers on testing best practices and reliability-first design
* Contribute to documentation, standards, and continuous improvement


What we expect from the candidate (must-haves)

* 10+ years in Quality Engineering/SDET roles focused on backend or platform services
* Strong coding with Java and hands-on automation using Cucumber and/or Robot Framework
* Proven experience building CI/CD-integrated test frameworks (Git/GitHub, Gradle, Docker)
* Performance testing expertise with Gatling (workload design, analysis, recommendations)
* Chaos and resilience testing experience (Litmus) and operational readiness validation
* Observability: Prometheus/Grafana/New Relic for metrics, dashboards, SLOs, and alerting
* API testing experience (Postman), strong understanding of REST and common integration patterns
* Cloud experience with AWS and/or Azure
* Solid grasp of testing strategy: functional, integration, system, and non-functional
* Excellent communication, critical thinking, and cross-functional collaboration


Nice to have

* Hercules or similar performance harness tooling
* Experience with Azure DevOps, GitHub Actions, or Jenkins (pipelines and environments)
* Contract testing, service virtualization, or test containers
* Kubernetes familiarity (Litmus typically runs on K8s), IaC basics (e.g., Terraform)
* Domain knowledge in banking/fintech, compliance-minded testing


Success metrics you’ll influence

* Reduced test cycle time and flakiness rate; improved pipeline pass rate
* Meaningful automation coverage aligned to business risk
* Measurable improvements in P95/P99 latency and error budgets
* Fewer escaped defects and faster MTTD/MTTR via actionable telemetry
* Consistent, auditable release-readiness signals


First 90 days

* 0–30: Onboard, baseline current coverage and performance; ship quick wins in CI gating
* 31–60: Deliver Gatling suites and dashboards (Prometheus/Grafana/New Relic); standardize framework patterns
* 61–90: Run first chaos game-day; validate backup/restore; publish reliability playbooks; measure impact


Tech stack you’ll use

* Languages/Frameworks: Java, Cucumber, Robot Framework
* Performance/Resilience: Gatling, Litmus, Hercules (nice to have)
* API/Tools: Postman, Git/GitHub, Gradle, Docker
* Observability: Prometheus, Grafana, New Relic
* Cloud: AWS, Azure
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