Ben Paternostro

Senior Software Engineer · Sydney, Australia

Engineering across the whole delivery system.

Full-stack engineer shipping customer-facing software with AI-assisted workflows, rigorous testing, and production observability.

01 Selected Record

Recent work in product delivery, quality, and platform observability.

Mar 2026 — Present

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, applying established planning and implementation patterns while managing context quality and model cost
  • Led adoption of OpenTelemetry, OpenFeature, and Storybook for observability, progressive delivery, and component development
Mar 2025 — Feb 2026

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
  • Implemented visual regression testing for large-scale dynamic PDF rendering
Mar 2024 — Jan 2025

QA Automation Lead

Simpology Australia · Sydney, NSW, Australia

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

  • Built Playwright E2E and Postman/Newman API frameworks with CI/CD integration
  • Mentored and upskilled manual testers into automation engineers through workshops, pairing, and documentation

02 Practice

How the work gets done.

Product delivery

Own features across implementation, deployment, and production, with short feedback loops back to the team and customer.

AI-assisted workflow

Use coding agents for substantial delivery while retaining planning, testing, review, observability, and cost discipline.

Quality as architecture

Build testability, release confidence, and system visibility into the engineering platform rather than adding them at the end.

03 Career Index

The complete earlier record.

Oct 2023 — Mar 2024

Senior Software QA Engineer

DroneShield

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

Feb 2023 — Sep 2023

Senior Site Reliability Engineer

Rokt

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

May 2021 — Jan 2023

Senior Software Engineer (QA)

Rokt

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

Feb 2020 — May 2021

Software Engineer (QA)

Rokt

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

May 2019 — Jan 2020

Software Development Engineer in Test

Prospa

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

Oct 2017 — Apr 2019

Software Engineer

Medical Director

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

Apr 2016 — Sep 2017

Graduate / Junior Software Engineer

Medical Director

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

04 Independent Work

A project outside the day job.

Angla

A fishing weather and Instagram-style social app.

05 Toolkit

Languages, platforms, and engineering methods.

AI Tooling
Claude Code, Codex, GitHub Copilot, MCP, Agent Skills
Programming Languages
TypeScript, JavaScript, C#, Python, Go, SQL, PowerShell, Bash
Cloud & DevOps
AWS, Azure, Kubernetes, Terraform, Docker, Azure DevOps, Buildkite, Octopus Deploy
Quality & Observability
Playwright, Test-Driven Development, Visual Regression, Contract Testing, Datadog, OpenTelemetry, RUM
Spoken Languages
Spanish (Elementary)

06 Background

Education and recognition.

Education

2013 — 2016

Western Sydney University

Bachelor, Information and Communications Technology

2015 — 2015

Austin Peay State University

Study Abroad Semester, Computer Science

Recognition

  • Australian Computer Society Foundation Scholarship
  • Dean's Merit List
  • Australian Government Scholarship