Freelance Quantum EngineersFreelance Quantum Engineers
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Manoj Rana's avatar
Manoj Rana
Dadri, India
A Full Stack QA[6+ YOE] to perform End to End testing.
New to Contra
A Full Stack QA[6+ YOE] to perform End to End testing.
Cover image for ⚠️ When Quality Assurance Is
⚠️ When Quality Assurance Is Ignored, The Cost Can Be Huge Software quality is not just about finding bugs — it is about protecting business, customers, and reputation. Here are some real-world examples where software failures created massive impact: 🔴 1. Knight Capital Group (2012) — $440 Million Loss A software deployment issue caused automated trading systems to behave incorrectly. Within minutes, the company faced enormous financial losses. Lesson: ✅ Strong release validation ✅ Automated regression testing ✅ Production-like testing environments are critical for high-risk systems. 🔴 2. Healthcare.gov (http://Healthcare.gov) Launch (2013) — Poor User Experience & Performance Issues The initial launch faced severe performance problems, slow response times, and users were unable to complete registrations. Lesson: ✅ Performance testing under realistic user load ✅ Scalability testing ✅ End-to-end validation should happen before production launch. 🔴 3. Amazon S3 Outage (2017) — Major Service Disruption A maintenance mistake impacted AWS services and caused outages for many businesses relying on cloud infrastructure. Lesson: ✅ Proper change validation ✅ Automated checks ✅ Fail-safe deployment processes are essential for reliable systems. 🔴 4. Toyota Recall Software Issues Software-related issues in automotive systems highlighted the importance of rigorous validation and safety testing. Lesson: When software controls critical systems, quality engineering becomes a business necessity. 💡 A single missed defect can impact: ❌ Revenue ❌ Customer trust ❌ Brand reputation ❌ Business continuity This is why QA is not a final checkpoint. Quality should be built into every stage of software development. #QualityEngineering #QA #TestAutomation #PerformanceTesting #SDET #SoftwareTesting #DevOps #AutomationTesting
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Cover image for 🚀 Need reliable test automation
🚀 Need reliable test automation for your web application? I recently set up a complete CI pipeline using Jenkins + Selenium + Java + TestNG + Maven, where Jenkins automatically: ✅ Pulls the latest automation code from Git ✅ Executes end-to-end test suites ✅ Generates detailed HTML reports ✅ Provides quick visibility into test results and failures I help businesses build and maintain: 🔹 UI Test Automation Frameworks 🔹 CI/CD Integration with Jenkins 🔹 Regression Test Automation 🔹 Performance Testing with JMeter & k6 🔹 Custom QA Automation Solutions If you're looking to reduce manual testing efforts and improve release confidence, let's connect. #QAAutomation #SDET #Selenium #Jenkins #TestAutomation #Java #TestNG #Maven #CI #SoftwareTesting #PerformanceTesting #WebAutomation
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Cover image for AI is helping humanity in
AI is helping humanity in incredible ways, but every innovation comes with a hidden environmental cost. This short film explores the balance between technological progress and sustainability—and asks whether AI can become part of the solution.
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Cover image for Professional End-to-End Test Automation Framework
Professional End-to-End Test Automation Framework for SauceDemo A production-ready Playwright test automation suite built with TypeScript, demonstrating industry best practices for modern QA automation. 🎯 KEY FEATURES: ✅ Page Object Model (POM) architecture for maintainable test code ✅ Comprehensive test coverage including: • User login flows (valid/invalid credentials, locked accounts, performance users) • Complete e-commerce purchase workflows • Multiple user personas & edge cases ✅ TypeScript for type-safe, scalable test development ✅ Data-driven testing with JSON test data management ✅ Playwright test runner with HTML reporting ✅ Cross-browser test capability configuration 📂 PROJECT STRUCTURE: • Page Objects (web/pages/) - LoginPage, BuyProductPage • Test Cases (web/testcases/) - Login tests, Purchase flow tests • Test Data (dataObjects/testData/) - User credentials & scenarios • Configuration files (playwright.config.ts, tsconfig.json) 🔧 TECHNOLOGIES: • Playwright 1.61.0 • TypeScript • Node.js • HTML Test Reports
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Quantum Engineer(1)
Christian Neureuter's avatar
Christian Neureuter
Lockport, USA
InSite Tech Solutions: Websites, Software & More
InSite Tech Solutions: Websites, Software & More
Cover image for QAOA Implementation for MAX-SAT Problems
QAOA Implementation for MAX-SAT Problems
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Cover image for Launch of InSite Tech Solutions
Launch of InSite Tech Solutions
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Cover image for PyCAT-Napari Bio-image Analysis Platform
PyCAT-Napari Bio-image Analysis Platform
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Cover image for Biophysics Lab Website and Branding
Biophysics Lab Website and Branding
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Quantum Engineer(1)
Purva Patel's avatar
Purva Patel
proRajkot, India
Concept to Growth with Design, Development & Marketing
5.0
Rating
57
Followers
Concept to Growth with Design, Development & Marketing
Cover image for Discover Prism: The Future of Transparent Quantum Devices
The "Prism" Translucent Quantum Device The Product: A pocket-sized, completely transparent glass-slab device with visible, shifting photonic circuits inside. Visual Style: Prismatic light refractions, studio caustics, architectural minimalism, and sharp white or silver UI overlays.
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Cover image for Explore Monolithic Sci-Fi Luxury with Mag-Lev Neural Core
The "Monolith" Mag-Lev Modular Neural Core The Product: A high-end desktop quantum computer or data drive shaped like a flawless, obsidian monolithic tower. It operates using zero-gravity magnetic levitation to separate its components when processing data. Visual Style: Monolithic sci-fi luxury, perfect mirror reflections, intricate internal mechanics, and intense golden particle simulations.
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Cover image for Built a complete multi-page digital
Built a complete multi-page digital experience using Google Stitch. For this project, I designed and prototyped Eternal Maven, a modern AI and technology agency website focused on communicating technical expertise, credibility, and premium brand positioning. What I created: • Homepage with a bold, future-focused visual identity • AI Development, Web Development, and Solutions pages • Case Study section featuring project outcomes and impact metrics • Industry-specific expertise showcase • Technology Stack page highlighting modern tools and platforms • Portfolio gallery for featured work • Blog & Insights hub for thought leadership content • Contact and conversion-focused lead generation experience How I used Google Stitch: I leveraged Stitch to rapidly generate, refine, and prototype high-fidelity screens while maintaining a consistent design system across the entire experience. The platform made it easy to explore ideas, iterate quickly, and build a cohesive multi-page user journey. Design Direction: Dark immersive UI, electric blue accents, glassmorphic elements, modern typography, and premium visual storytelling designed for a 2026-ready digital presence. Prototype: https://stitch.withgoogle.com/preview/10522833652304720789?node-id=98d3602ef68e4bcb88b235a2ac03a4d0 #GoogleStitch #WebDesign #UIDesign #UXDesign #AI #ProductDesign #Prototype #DigitalExperience #Contra
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Cover image for I redesigned the website with
I redesigned the website with a modern, premium, and conversion-focused layout. • Homepage: Full-width hero background with clear messaging and CTAs for a strong first impression • Services: Clean, card-based layout for easy browsing and better UX • Driveways Page: Interactive visuals (carousels / before-after) to showcase work quality • Request a Quote: Streamlined, premium form design to boost completions Built to improve user experience, elevate brand perception, and drive more inbound leads.
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Quantum Engineer(2)
Redion Bufi's avatar
Redion Bufi
Fier, Albania
QA Engineer
28
Followers
QA Engineer
Cover image for QA Audit — Rapid Product
QA Audit — Rapid Product Quality Reviews (Upwork) Delivered short-term QA audits for multiple startups, reviewing products from a first-time user and quality perspective. Focused on fast feedback, clarity, and launch readiness. Highlights Created smoke checklists and readiness / release validation documents Identified blockers, broken flows, and UX issues quickly Delivered clear reports with reproduction steps, screenshots, and actionable recommendations
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Cover image for Tabs — Senior QA Engineer
Tabs — Senior QA Engineer (Payments & SaaS) Worked as a long-term QA Engineer on a B2B SaaS platform focused on billing, invoicing, and financial workflows. Collaborated closely with developers and product to ensure stable releases across complex payment logic and integrations. Highlights Validated critical billing flows (subscriptions, invoices, credits, taxes) Tested integrations with third-party financial systems and APIs Reduced production issues by catching edge cases early in the release cycle
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Cover image for WeScope — QA Engineer for
WeScope — QA Engineer for No-Code Platform (Manual + Automation) QA Engineer on a large no-code/low-code platform used to build internal tools and production apps. Owned both exploratory testing and test automation to support fast and frequent releases. Highlights Built and maintained automation checks using Playwright Tested core builder functionality, user flows, and UI logic Supported frequent releases with a mix of manual testing and automated smoke coverage
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Cover image for Structure fi (http://Structure.fi) — QA
Structure fi (http://Structure.fi) — QA Lead (Web & Mobile) Acted as QA Lead for a fintech/web3 product, owning quality across web and mobile while coordinating testing efforts before releases. Highlights Led and coordinated a team of 2 mobile QA testers Defined testing scope, priorities, and release readiness Performed exploratory and regression testing to ensure stable launches
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Quantum Engineer(1)