Barış Şahin.Get in touch
Menu

02 / EXPERIENCE & PROJECTS

Work that holds up
under scrutiny.

From automation architecture to customer integrations, I focus on the systems that make quality repeatable.

01 / PROFESSIONAL EXPERIENCE

Where I’ve worked.

01 — Jun 2025 — Present

Base64 Document AI

Software QA Test Engineer · Part-time

Own end-to-end quality for web applications, REST APIs, and document-processing workflows, from design review and test strategy to regression and release validation.

  • Designed Playwright automation reaching 85% code-level and 90% feature-level coverage.
  • Built 50+ Playwright and Cypress E2E tests and integrated automated checks into CI/CD.
  • Maintained Cypress end-to-end checks for web workflows as part of regression validation.
  • Reduced the main suite from 20 to 12 minutes and visual regression from 12 to 5 minutes.
  • Developed customer-specific n8n integrations, then a maintainable production Engine API for two enterprise customers.

TOOLS & METHODSPlaywright · Cypress · TypeScript · REST APIs · Docker · CI/CD · n8n

02 — 2026 — Present

PixelSpark Games

Co-Founder & Developer

Develop game systems and contribute to the studio website while coordinating debugging, testing, and team delivery.

  • Develop game systems with Godot 4 and GDScript.
  • Contribute to the studio website with Next.js, React, and Tailwind CSS.
  • Investigate frontend layout, responsiveness, interaction, and user-flow issues.

TOOLS & METHODSGodot 4 · GDScript · Next.js · React · Tailwind CSS

03 — Jul 2024 — Aug 2024

Robert Bosch GmbH — R&D Center

Data Science Intern

Explored manufacturing data and preliminary machine-learning approaches for production optimization.

  • Checked data quality, visualized findings, and prepared concise reports for technical stakeholders.

TOOLS & METHODSData analysis · Python · Machine learning

02 / SELECTED TECHNICAL WORK

A closer look.

Four examples of the engineering behind reliable releases.

CASE 01TEST AUTOMATION

Playwright automation architecture

Context

Critical web and document workflows needed dependable release feedback.

Approach

Designed a Playwright-based architecture and maintained browser and integration coverage in CI/CD alongside Cypress tests.

Impact

50+ E2E tests · 85% code-level coverage · 90% feature-level coverage

Playwright · Cypress · TypeScript · CI/CD

CASE 02RELEASE CONFIDENCE

Visual regression & CI optimization

Context

Cross-environment screenshots were slow and vulnerable to operating-system and dynamic-content variance.

Approach

Dockerized Playwright, stabilized baselines, refined scope, and used parallel execution and dynamic-content handling.

Impact

12 min → 5 min · 58% faster visual regression execution

Playwright · Docker · CI/CD

CASE 03API & DATA QUALITY

Enterprise customer integration & mapping

Context

Two enterprise customers needed production integrations and precise downstream output schemas.

Approach

Built n8n pipelines and a production Engine API; validated JSON-to-XML mapping for optional fields, repeated records, ordering, empty values, and business exceptions.

Impact

Production integrations for two enterprise customers

Engine API · n8n · REST APIs · JSON · XML

CASE 04BROWSER TESTING

Cypress end-to-end testing

Context

Web applications and document-processing workflows needed repeatable regression checks.

Approach

Built and maintained Cypress end-to-end tests alongside Playwright coverage, with automated checks integrated into CI/CD.

Impact

Part of a combined suite of 50+ E2E tests across Cypress and Playwright

Cypress · End-to-end testing · CI/CD

03 / INDEPENDENT PROJECTS

Beyond the QA role.

PIXELSPARK GAMES · 2026 — PRESENT

Building the product, too.

As a co-founder and developer, I build game systems with Godot 4 and GDScript and contribute to the studio website with Next.js, React, and Tailwind CSS. The work brings product thinking, debugging, and collaboration into the same practice.

TEKNOFEST 2025 · 2024 — 2025

Coordinating a software team.

As Scrum Master for a psychological counseling and ADHD analysis platform, I coordinated sprints, daily follow-up, task distribution, and delivery across backend and machine-learning workstreams.

More about me