Semsudin Work

I've shipped software for twelve years.

Some of the projects I've worked on.

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Case studies05

#ProjectIndustryMetric

Industrial Manufacturing · Enterprise GenAI

Enterprise GenAI platform

QA Lead → Sr. SDET → AI Systems Architect

Long-termEngagement

4Distinct projects

775+%Pipeline speed-up

10+LLMs orchestrated

Enterprise GenAI platform

I've worked on four projects for a global industrial company over seven years. I started by modernizing their test automation and went on to work on the architecture and development of their enterprise GenAI platform and an agentic development pipeline.

775+% Pipeline speed-up Enterprise GenAI platform

1000+ Automated tests AI-driven QA

10+ LLMs orchestrated Enterprise GenAI platform

Some numbers from my work.

In the field: 12+yrs
Engineers led: 50+
Tests shipped: 25000+
Pipeline speed-up: 775+%

01 / 05Industrial ManufacturingEnterprise GenAI

Enterprise GenAI platform

QA Lead → Sr. SDET → AI Systems Architect

Engagement: Long-term
Distinct projects: 4
Pipeline speed-up: 775+%
LLMs orchestrated: 10+

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Enterprise GenAI platform

Distinct projects 4

04 Enterprise GenAI platform AI Systems Architect

Under the hood

ReAct-style reasoning agentFull RAG pipeline.NET 8 orchestratorAzure infrastructureObservabilityUnified CI/CDAdmin Configuration Panel

03 Azure DevSecOps Set up secure CI/CD pipelines with automated tests and vulnerability scans on every deploy Senior SDET / DevSecOps

02 Reference framework Developed a C# + Playwright framework for rapid UI and API validation Senior SDET

01 Automation rescue Migrated from legacy tooling to a Selenium-based C# framework Test Automation Engineer

LLMs orchestrated 10+

Pipeline speed-up 775+%

02 / 05MarTechConsumer

AI-driven QA

Senior QA Engineer · AI-Driven QA Lead

I built a Playwright framework from scratch covering 6 projects across two brands of a global pet care company, in the US and UK. I also built AI agents that write test plans, create tests from work items and fix failing tests.

Automated tests: 1000+
Apps covered: 6
Auth pass rate: 20% → 100%
Regions supported: US + UK

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AI-driven QA

1000+Automated tests

6Apps covered

US + UKRegions supported

AI-driven QA

Test plans agents explore the UI, map the user flows and write test plans

Tests from work items agents read a ticket and its acceptance criteria and write a Playwright test

Self-healing when a selector breaks, the agent looks at what changed in the DOM and updates the test

Ticket flow agents move tickets between stages based on test results

Security and performance agents flag OWASP top-10 issues and performance regressions in PRs

Fixes agents open PRs for simple fixes

Auth pass rate ~~20%~~ → 100%

03 / 05Parking OperationsMicroservices

QA transformation

Lead QA Engineer · QA Transformation

I led QA on the core project of Europe's largest parking operator, a microservices platform. I set the test strategy, processes, test stages and definition of done, and built and led the QA team working inside the delivery pipeline.

Role: Lead
Architecture: Microservices
QA team: Led

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QA transformation

What I owned Microservices

The QA strategy processes, test stages and which types of testing happen in each phase

QA in continuous delivery which matters a lot with microservices because each service ships on its own schedule and the tests have to keep up

The QA team I hired and led it, gave out work based on experience, and mentored where needed

Definition of done for each development stage, agreed together with development and project management

Worked with development and project management leads to set the quality bar for client deliverables

C#SeleniumJavaScriptPostmanJavaPuppeteerCI/CD

QA team Led Role Lead

04 / 05Enterprise SoftwareRegulatory Technology

Test automation architecture

Test Automation Architect · QA Strategy Lead

I worked on two projects in a row on a European regulatory and registry platform. On the Core project I set up the QA strategy and automation framework. On the Cyprus rollout I led testing across several countries and moved the framework from Playwright/TypeScript to Cypress/JavaScript.

Regression runtime: −orders of magnitude
Engagements: 2 back-to-back
Countries deployed: Multiple

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Test automation architecture 2 back-to-back

Core projectCyprus rollout

- Playwright · TypeScript
+ Cypress · JavaScript

Started the automation in Playwright with TypeScript

Moved the framework to Cypress with JavaScript partway through to match the organization's standards, without delaying delivery

Set up Azure DevOps workflows linked to requirements and test plans

Deployed to several countries, each with its own validation rules

Azure DevOpsAngular.NET CoreSQLCI/CD

Regression runtime −orders of magnitude

Countries deployed Multiple

05 / 05GamingRental Platform

Foundational test automation

Senior Software Engineer in Test

I built the first automated test suites for a gaming rental app and later extended them to mobile. I also worked with the developers on load testing and finding performance bottlenecks.

Coverage: Web + Mobile
Test types: Functional + Load

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