Ben Paternostro

• Build new features and modernise existing functionality across .NET Core services, Vue.js and Blazor frontends, APIs and integrations
• Use coding agents (Codex, Claude Code, Cursor) for implementation, refactoring, testing and documentation, applying reusable prompts and engineering standards while reviewing and validating generated code
• Work directly with business stakeholders to translate requirements into PRDs, technical specifications, implementation plans and acceptance criteria
• Develop SQL Server-backed workflows, including schema design, migrations, query optimisation and reporting, maintaining data integrity across application services and integrations
• Support AWS infrastructure and CI/CD workflows using Azure DevOps and GitHub, improving environment separation, release controls, rollback and recovery across development, staging and production
• Write and maintain unit, integration, API, frontend and end-to-end tests, incorporating automated checks into pull requests and release workflows
• Develop production observability through structured logging, metrics, traces, dashboards and alerts, investigating incidents and addressing root causes

• 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
• 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
• 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

• 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

• 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

• 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

Feb 2023 — Sep 2023

• 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)

May 2021 — Jan 2023

• 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)

Feb 2020 — May 2021

• 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

• 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

Oct 2017 — Apr 2019

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

Graduate / Junior Software Engineer

Apr 2016 — Sep 2017

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