Work

Experience, recommendations, and achievements.

Where I've worked

Questrade Financial Group
Remote Fintech Canada
May 2022 — present
Senior QA Engineer
  • Architected a Cypress test automation framework (Page Object Model, 50+ custom commands) with 86% reduction per component (7s vs 52s E2E), applying a Shift Left quality approach — covering E2E, component, API, mobile and performance regression testing across the KYC, lifecycle rule engine and Annual Review domains, with test plans and cases managed in Zephyr Scale — including visual conformance validation against designer specs in Figma —, parallelization and flakiness tracking via Cypress Cloud.
  • Extended quality assurance coverage to mobile MFA and IDV flows not covered by the existing Detox setup, inspecting payloads via Android Studio in debug mode; built cross-device regression testing on BrowserStack and physical devices validating selfie and document approval/rejection via Mitek SDK — securing compliance coverage for flows that directly gate customer account access.
  • Built comprehensive API and component test coverage across three layers: Postman/Newman (800+ tests) for KYC, onboarding and lifecycle flows; Cypress component testing for the same domains integrated into CI/CD; and Playwright for MFA flows with OAuth2/PKCE, TOTP and token caching — validating phone/email changes, withdrawals and multi-tenant isolation (8+ services) in SIT/UAT, ensuring regulated flows were verified before every release.
  • Ran k6 performance tests for OAA onboarding (100 VUs, 10 min, P95 < 2000ms, error rate < 1%) covering critical compliance endpoints (PEP, tax residency across 3 jurisdictions); validated observability with Datadog on GCP (SIT, UAT and production) — informing static and unit coverage recommendations via SonarCloud; owned post-deploy CR verification in production — responsible for the go/no-go decision for prod-support after each release.
  • Deployed custom QA metrics (PPI, SRM, RBD, Task Score avg 26.6, max 30) across 30+ sprints and built a Dockerized platform with GitHub Actions integrating SonarCloud, Jira and Google Sheets via Newman — replacing manual spreadsheet extraction with real-time Grafana/InfluxDB dashboards that gave the team, manager and PO visibility into rework hotspots and root cause analysis.
  • Adopted generative AI (Copilot, Cursor, Claude Code, Gemini, Postbot) for test plan creation, analysis and refactoring — ~75% faster test delivery — and led knowledge-sharing sessions for the full QA team (Junior to Principal) on KYC/OAA architecture, APIs and business rules accumulated over 4 years — recognized with Exceeding Performance (2024).
CI&T
Remote
Oct 2020 — May 2022
Mid → Senior Test Engineer
  • Led test plan creation and business rule validation for the shopping cart on the BEES platform (AB InBev), a B2B marketplace for small retailers — price computation, discount coupons and bundle composition — earning a Mid→Senior promotion in 15 months (Team Highlight, Mission Accomplished and Client Satisfaction, Aug 2021).
  • Automated REST API tests with Postman and REST Assured (Java) and validated data persistence in MongoDB via Compass and NoSQLBooster.
Stefanini
May 2019 — Oct 2020
Junior Test Engineer
  • Built a mobile automation framework with Appium (Android/iOS) to validate the IDP (Intelligent Document Processing) pipeline for Banco Bradesco and Banco RCI — covering document capture, extraction via multiple OCR engines with per-character and per-field confidence scores, and onboarding pipeline accuracy.
  • Implemented E2E web tests with Ruby, Selenium and Capybara, and API tests with HTTParty, covering critical user journeys across banking clients' onboarding systems.
Qualinfo
Sep 2015 — May 2019
Support Analyst → Junior QA Engineer
  • Worked as the sole QA engineer — advancing from intern to Junior Analyst in 3 years; tested Acadweb (educational ERP in Delphi + Crystal Reports) and the Academic Portal (Laravel/PostgreSQL), and developed TimeDesk — an internal tool for license control, expiration alerts and client-side deployments.
  • Automated daily incremental backup routines for all clients, managed multi-database environments (MySQL, SQL Server, Oracle, PostgreSQL) for business rule and report validation, and initiated test automation with Selenium WebDriver and Java.
SolutionInc
Halifax, NS, Canada
May 2014 — Sep 2014
Test Analyst (Co-op)
  • Set up physical test environments — rack servers with structured cabling, captive portal software and router connected to SolutionInc's central server — and executed cross-device tests on iOS, Android, Windows, Linux and macOS.
  • Validated the product in real hotel, airport and event scenarios: captive portal load speed, access flow via code and coupon, and session management via frontend — connected users, remaining time, increment, revoke and user blocking — creating and maintaining 200+ test cases.

What people say

Manager Voice · Annual Reviews
Engineering Manager leadership potential
Questrade · 2022

Considered a focused professional on the right path to become a reference for other QAs in the company. Responsible professional with a customer vision who leads the team to deliver higher-quality software — explicitly highlighted as having potential to be a good leader in the future.

Engineering Manager qa metrics impact
Questrade · 2023

The QA observability platform and metrics dashboards were highlighted as a valuable tool, already being tracked by other teams. Lucas had solid performance, achieved good results, and grew where necessary — on the right path to elevate the team to new levels.

Engineering Manager full ownership
Questrade · 2024

Lucas exemplifies a customer-centred approach in QA, with a consistent ability to identify problems from the user's perspective. He demonstrates full ownership of his deliveries — automation, documentation, and quality — and consistently meets deadlines.

Engineering Manager principal track
Questrade · 2024

Lucas stands out in automation initiatives — the Customer Lifecycle Platform and KYC Annual Review were successfully implemented and considered critical for the team. He demonstrates full ownership of his deliveries and consistently meets deadlines. He is on the right path to becoming Principal QA Engineer.

Colleague Voice · LinkedIn Recommendations
Jean Michel Perli Sonsin
AI-driven testing
Principal QA Engineer · Jul 2026 Lucas's direct QA lead at Questrade

Lucas's strong technical expertise drives innovation and creative problem-solving across the entire team. He successfully designed and implemented diverse automated testing scenarios, even developing custom scripts to generate test data. He also successfully managed to leverage AI within his test activities, being able to generate detailed defect reports that help our software engineers solve issues quickly and effectively.

Gurashish Juneja
edge-case rigor
Payments Risk & Financial Crime · Sep 2026

Lucas demonstrated a genuine passion for rigorous testing across both backend and frontend components. He had a keen eye for edge cases, was thorough in identifying and reporting defects, and consistently challenged the team to think beyond the happy path. I highly recommend Lucas for his enthusiasm, attention to detail, technical strength, and customer-first mindset.

Connie Zhou
curiosity & reliability
Questrade Financial Group · Aug 2026

As a Senior QA, Lucas is fantastic to collaborate with. He's warm, approachable, and always brings great energy to our projects. What I've always appreciated most about him is his curiosity, he genuinely loves exploring new testing tools and diving into different test cases. Lucas is a reliable and skilled professional who brings a lot of value to any group.

Agapi Koutsi
risk foresight
Staff Interaction Designer · Jul 2026

Lucas consistently went beyond simply validating requirements, he proactively explored potential risks, uncovered unique edge cases, and helped the team think through scenarios that others might have missed. Lucas is a true partner to product and design teams. He asks thoughtful questions, provides valuable feedback, and is always responsive and willing to help clarify details to ensure we deliver the best possible user experience.

Chaya Yaddehige Dona
edge-case mastery
Full Stack Software Engineer · Jun 2026

He expertly designed and maintained robust end-to-end test suites using Cypress, seamlessly covering both frontend and backend testing across the Customer Lifecycle team. He possesses an exceptional understanding of KYC and OAA flows, allowing him to write highly relevant, business-critical test cases. He is hands-down one of the best engineers I've worked with at uncovering obscure edge cases, catching critical bugs well before they could ever reach production.

Victor Costa
product mindset
Senior Full-Stack Engineer · Jul 2026

What stands out most about his profile is his strong product mindset and deep focus on user experience. He has a natural ability to map out and understand end-to-end user flows, successfully anticipating user pain points, which adds immense value when refining any feature. Lucas excels at bridging the gap between technical and business perspectives.

Fernanda André
automation leadership
Senior QA Engineer · Jun 2026

Lucas was a true technical reference and a natural leader for our QA team. Lucas pioneered the implementation of test automation within our team, always maintaining an extremely collaborative mindset focused on raising the technical bar for everyone around him. He had the vision to focus on component testing, isolating what truly needed to be validated from other dependencies that could slow down test execution, an approach that brought great efficiency and reliability to our deliveries on the Customer Lifecycle Platform.

Recognition

Impact recognized by leadership, squads, academia, and community — proof beyond day-to-day delivery.

Performance 2024

Exceeding Performance

Questrade · KYC/OAA

Recognized for technical leadership on KYC/OAA — architectural innovation in the testing framework and adoption of generative AI to accelerate test delivery.

86% faster · component vs E2E 1 week → 1–2 days · AI-assisted
Experience at Questrade →
Squad Aug 2021

Team Highlight & Mission Accomplished

CI&T · BEES platform

Squad recognized for deploying quality gates that became the SRE reference. Automated test pyramid implementation eliminated deployment bottlenecks.

CI&T experience →
Academic Jun 2022

Undergrad Thesis Approved

UFRPE · Information Systems

QA Metrics — Company thesis modality: Docker integration of Jira, SonarCloud and Test Pyramid into Grafana dashboards. Open-sourced and later evolved at Questrade.

99.86% time saved · metrics collection 3 Grafana dashboards · open source
Education & QA Metrics →
Impact May 2023

Corporate Volunteering

Questrade · Grupo Partilhar

One of 5 volunteers preparing and delivering meals for 300 homeless people. Donations enabled purchase of an industrial oven for Grupo Partilhar - Iluminando Caminhos.

300 meals · 5 volunteers industrial oven funded