01
Modernized a large E2E automation platform
Led the transition from a legacy TestCafe suite to Playwright, improving browser management, debugging, test organization and CI execution while supporting engineers through the migration.
Available for meaningful work
I turn complex ideas into useful digital products.
I'm Yastrenky, a Senior SDET and automation engineer building reliable software delivery systems—from browser-level experiences to the CI pipelines behind them.
PlaywrightTypeScriptNode.jsCircleCIAWSRelease QualityAI Tooling
Engineering impact
Quality systems built for scale.
I work where test architecture, delivery infrastructure and product reliability meet.
02
Designed dependable CI quality gates
Built region-aware regression, smoke and post-release workflows with parallel execution, reruns, branch protections and release validation.
03
Prevented parallel-test interference
Architected isolated test divisions, accounts and dynamic environments so concurrent automation could run reliably without corrupting shared state.
04
Integrated AI into QA workflows
Worked with AWS Bedrock, Claude and the Anthropic Agent SDK to bring AI-assisted context, indexing and automation into engineering workflows.
Core capabilities
Automation framework architectureLarge-scale E2E suitesRelease validationFlakiness reductionCross-platform testingFedRAMP validationTechnical leadershipQA environment strategy
Career journey
Experience shaped by constant growth.
From software development to senior quality engineering, each chapter has expanded how I build, test and lead reliable products.
2019 — PresentCurrent role
NinjaRMM / NinjaOne
Senior quality automation & SDET leadership
Owning and evolving large-scale automation systems across products, regions and release cycles. My work includes leading the TestCafe-to-Playwright migration, improving CI reliability, designing isolated test environments, guiding engineers and integrating AI-assisted tooling into QA workflows.
2018 — 2019
Tango Mango
Full-stack web development
Worked on a company-scale sales-management platform supporting customer orders, invoicing and production orders for wholesale and retail operations, using React, Node.js and MongoDB.
2017 — 2018
TechLaunch · Florida Vocational Institute
Professional web-development training
Completed an intensive technology program focused on practical web development and preparing for a professional career in software engineering.
2015
Desoft
First professional web project
Gained early company experience with corporate web applications and business software in an organization specializing in databases, networks and enterprise management solutions.
2010 — 2015
Universidad Central “Marta Abreu” de Las Villas
Computer Science studies
Built the technical foundation that began my path through software development, web engineering and quality automation.
Early experiments
Where curiosity became craft.
School projects and early web experiments that helped shape how I learn, prototype and solve problems.
About me
Curious by nature.
Practical by choice.
I'm a self-motivated engineer who cares about the full experience: how a product looks, how it feels and how reliably it works.
I enjoy turning ambiguous problems into approachable software, collaborating with thoughtful people and continually improving my craft. My background spans front-end interfaces, Node.js services, databases, APIs and automated testing.
01Build for people02Keep learning03Sweat the details
Have a project in mind?
Let's build something
worth using.
Tell me a little about what you're working on. Your message will go directly to my work inbox.