Ben Paternostro

Senior Software Engineer

Greenstone Financial Services · Sydney, NSW, Australia

Own feature delivery and platform observability across customer-facing insurance and financial services portals serving tens of thousands of users.

• Deliver most feature work with coding agents (Claude Code, Codex, GitHub Copilot), applying established planning and implementation patterns while managing context quality and model cost
• Hold AI-written code to the same bar as any other change (TDD, review, observability), using MCP integrations to give agents the project context needed for planning and implementation
• Led adoption of OpenTelemetry, OpenFeature (with LaunchDarkly), and Storybook, enabling end-to-end observability, progressive feature delivery, and component development with a visual-regression testing layer
• Consolidated observability into Datadog (logs, metrics, traces, RUM) for unified system visibility
• Improved the E2E framework to run in ~2 minutes by spinning up ephemeral environments in CI, bypassing third-party auth, caching sessions, and parallelising test execution
• Built a self-service test-data API into the pre-prod login flow, replacing manual DB access and becoming the organisation's default entry point to test environments
• Moved the team to routine business-hours deployments, making out-of-hours releases and manual production validation the exception rather than the norm

Senior Software QA Engineer

Greenstone Financial Services · Sydney, NSW, Australia

Owned test automation strategy, frameworks, and test observability across customer-facing portals.

• Designed and implemented a Playwright end-to-end testing framework replacing legacy Selenium
• Integrated test framework into Azure DevOps pipelines for release-gated automation
• Built custom Teams notifications and observability dashboards for test outcomes
• Implemented visual regression testing for large-scale dynamic PDF rendering
• Built API automation using generated OpenAPI clients to improve onboarding
• Authored RFCs and engineering proposals covering continuous delivery, canary deployments, and test observability
• Led workshops and pair-programming sessions to uplift QA and engineering teams

QA Automation Lead

Simpology Australia · Sydney, NSW, Australia

Led company-wide automation strategy, roadmap, and platform implementation.

• Defined organisational test automation strategy and rollout roadmap
• Built Playwright E2E and Postman/Newman API frameworks with CI/CD integration
• Drove shift-left testing and improved application testability with developer collaboration
• Migrated legacy Cypress/Selenium suites and implemented infrastructure automation
• Embedded observability and business metrics for ROI and quality reporting
• Mentored and upskilled manual testers into automation engineers through workshops, pairing, and documentation

Senior Software QA Engineer

DroneShield · Sydney, NSW, Australia

Owned QA automation and release quality for distributed systems and hardware/software integration.

• Designed and maintained automation frameworks in CI/CD pipelines
• Improved frontend and integration test coverage across complex distributed systems
• Partnered with engineering teams on risk-based test planning and release readiness

Senior Site Reliability Engineer

Rokt · Sydney, NSW, Australia

Led reliability initiatives across cloud-native services with incident management ownership.

• Led high-severity incidents through investigation, mitigation, and resolution, and facilitated incident-management training across teams
• Implemented SLOs and tuned alerting strategies to reduce operational noise
• Drove service-catalog ownership models, reliability scorecards, and service tiering
• Supported full continuous delivery: releases gated only by automated tests, rolled out via Argo Rollouts, and monitored in Datadog with automated rollback
• Built automation and tooling in Go, Python, Bash, and Terraform across AWS and Kubernetes

Senior Software Engineer (QA)

Rokt · Sydney, NSW, Australia

Built multi-language quality platforms for functional, contract, visual, and load testing across a 100+ service ecosystem.

• Implemented Pact contract testing across more than a dozen services in multiple languages
• Rolled out visual regression testing, reducing customer-reported UI defects and enabling safer CI/CD deployments
• Built k6 performance and load testing for experimentation and production traffic replay
• Delivered company-wide training, demos, and framework handovers; received the company-wide 'Hidden Value' award

Software Engineer (QA)

Rokt · Sydney, Australia

Built automation for microservices and ML-adjacent systems in an agile delivery environment.

• Implemented functional, integration, and contract test coverage
• Improved existing Selenium/Gauge end-to-end framework
• Collaborated cross-functionally on test strategy and edge-case design

Software Development Engineer in Test

Prospa · Sydney, Australia

Built reusable automation frameworks and enabled CI/CD-based quality gates.

• Built Protractor UI and Mocha/Chai API test frameworks
• Implemented Appium mobile automation and test-data generation tooling
• Coached manual testers and developers on test automation practices

Software Engineer

Medical Director · Sydney, Australia

Worked across full-stack development, TDD, and CI/CD automation in agile teams.

• Delivered end-to-end product features
• Maintained and improved CI/CD pipelines
• Contributed to test-first engineering practices

Graduate / Junior Software Engineer

Medical Director · Sydney, Australia

Joined through a graduate engineering program with rotations across software development and test automation.

• Built feature automation and dashboard tooling
• Delivered bug fixes and enhancements across frontend and backend systems

Western Sydney University

Bachelor, Information and Communications Technology

Austin Peay State University

Study Abroad Semester, Computer Science