Hire the Best Test Results & Analysis Professionals

After two decades in corporate research, analysis, analytics, and presentations, I shifted to freelance work so I could bring my skills in Excel, data science, and presentation development to smaller businesses, nonprofits, and individuals doing work that matters. I’ve worked across business, education, and community organizing, and I know how to deliver results whether I’m optimizing a marketing model, building an executive dashboard, or cleaning up a spreadsheet nightmare. There are plenty of talented freelancers out there. What sets me apart is the combination of technical skill, high standards from working with demanding clients, and a deep commitment to making sure your data actually helps you move forward. I take pride in the clarity, speed, and reliability of my work because I know how costly it can be when something isn’t done right the first time.Some people speak code, some people speak data, some people speak business, and some people speak human. I speak all of their languages and am an expert translator between them all. When You Work With Me: I sign on as part of your team—fully invested in (y)our success. I take time to understand your business and goals, and tailor my approach accordingly. I focus on one project at a time, so you’ll have my full attention. I communicate clearly and consistently, with regular updates and opportunities for feedback. I often go beyond the original brief because I see something interesting in the data that could be useful to you—and if it is, I’ll share it. If you’re not sure whether your project is a fit, feel free to reach out. I’m always happy to talk through it. Services 📊 PowerPoint & Presentation Design The perfect presentation balances style and substance. I’ll help you build a slide deck that not only looks great but also tells your story clearly. If you’re presenting live, I can also create separate versions optimized for delivery vs. standalone reading—and coach you on how to present it like a pro. 📈 Excel & Spreadsheet Automation From spreadsheet creation and optimization to BI tools and beyond, I build Excel tools that are powerful, intuitive, and cleanly designed. I also bring macro/VBA, dynamic formulas, and dashboarding into play as needed—without making the file a black box. 📉 Data Visualization The best analysis is useless if no one understands it. I design clear, impactful visualizations that highlight what matters—no spaghetti graphs, no rainbow pie charts, just good design tailored to your audience. 🧠 Data Science & Analysis I specialize in making complex data feel approachable. Whether you're looking for basic insights or advanced modeling (regression, clustering, ensemble methods, machine learning), I can help you uncover patterns, tell a story, and make better decisions. 📝 Copy Editing Whether it’s an essay, a white paper, a grant proposal, or a research deck, I’ll help tighten your writing and make sure it’s polished, persuasive, and typo-free.

Need to know if your platform actually works for real German users, not in a test environment but in the real world? I'm an independent QA specialist based in Germany. Here is what sets me apart: I test with real German bank accounts (Sparkasse, ING, Deutsche Bank, N26), real physical devices (iOS & Android), real money and real KYC, exactly how your actual users experience your platform. No emulators, no test data, no anonymous click-crowd. My work goes far beyond surface-level bug testing. I walk through the entire user journey, from registration and onboarding to payments, checkout, withdrawals and KYC, documenting every friction point, broken flow and localization issue that quietly costs you conversion, trust and retention in the German-speaking market. I work with international companies across SaaS, fintech, e-commerce, iGaming and AI platforms. As a native German speaker, I also catch the linguistic and cultural errors that break trust with German users. Every issue comes documented in a structured, developer-ready report with clear reproduction steps, screenshots and video. WHY CLIENTS WORK WITH ME Real-World Conditions, Not Lab Conditions: I test exactly as real users do, with real accounts, real devices and real payments, catching issues that emulators, test data and automated tools systematically miss. German Market Insight: As a native German speaker, I detect linguistic errors, cultural friction and trust-breaking elements that silently reduce conversion in the DACH market. Developer-Ready QA Reports: You receive structured bug reports with severity ratings, reproduction steps, screenshots and video, so your team can fix issues fast, without back-and-forth. One Specialist, Full Accountability: You work directly with me from start to finish. No rotating freelancers, no callcenter, no dashboard. One point of contact who stands behind every result. AREAS OF EXPERTISE SaaS & Web Application QA: - End-to-end manual testing across all user roles and workflows - Registration, onboarding, subscription and trial flow validation - Role-based access and permission testing - Cross-browser & cross-device testing (Chrome, Safari, Edge, Firefox / Desktop, Tablet, Mobile) - UI/UX review and user drop-off analysis Payment & Fintech Testing: - Real-money deposit, checkout and withdrawal testing - Real German bank accounts and payment methods (SEPA, WERO, PayPal, cards) - KYC and identity verification flow validation - Transaction accuracy and edge-case handling iGaming & Online Casino QA: - First-Time User Experience (FTUE) testing - Registration, KYC and onboarding validation - Deposit and withdrawal testing under real-world conditions - Functional bug detection, UI issues and localization QA AI & Localization QA: - AI output validation and German language accuracy - Evaluating relevance, coherency and factual accuracy of AI-generated content - German localization and translation quality review WHAT YOU WILL RECEIVE - Professional, structured QA reports your developers can act on immediately - A clear launch-blocker list and overall launch-readiness status - UX & conversion improvement insights - Localization QA for the German-speaking market - Video and screenshot documentation of every issue - Reliable re-testing after fixes I combine real user behavior with professional QA analysis to help companies launch stable, trustworthy platforms that work for the real German market. Whether you need a deep pre-launch audit or continuous QA support, feel free to reach out. I'm happy to share a sample report.

Do you need accurate, actionable insights from your survey, research, or business data to make informed decisions through powerful statistical and data science analysis? Look no further! I am a top-rated and full-time research data analyst with >8 years of experience in IBM SPSS, R, Python, SAS, STATA, NVIVO, JMP, JASP, Atlas.ti, Excel/Google Sheets. As a statistics wiz, survey expert, and data science practitioner, my areas of expertise include: ⭐️ Questionnaire/survey design & validation ⭐️ Survey & research data analysis: descriptive, inferential (Chi-Square, regression, correlation, t-test, ANOVA, etc.), predictive modeling ⭐️ Detailed interpretation & storytelling of results ⭐️ Report writing, academic formatting (APA, Harvard), and publication-ready outputs ⭐️ Advanced automation & scripting for reproducible workflows I provide a variety of services including but not limited to: ★ Sample size calculations ★ Correlation, regression, & multivariate analysis ★ Hypothesis testing & statistical modeling ★ Factor analysis (EFA/CFA), structural equation modeling ★ Predictive analytics & data visualization ▶︎ and much more My specializations: Health Research & Predictive Analysis Master's/Ph.D. Thesis & Dissertation Modeling Company Survey & Performance Analytics Social, Economic & Behavioral Data Science Projects What clients say 👉👉👉 ☆☆☆☆☆ "She is always of great help, and the turnaround time is on point. I can depend on her for assistance and explaining the work thoroughly." "Great work. Amazing communication and delivered the project on time." "Esther's results were clear, organized, and thoroughly explained. Excellent work! I'm so impressed! I appreciate her efforts and insight to the analysis of the project!" ☆☆☆☆ ✍️ Feel free to get in touch, and we can discuss your project further

I'm a quantitative financial analyst and algorithmic trading data scientist with over 15 years of professional experience in technical and trading roles at hedge funds and major trading companies. I'm an expert at all aspects of systematic trading, going from raw idea, to fully automated systematic trading strategy. Strategy design & signal development Whether you arrive with a rough sketch or a fully-formed hypothesis, I help translate it into clear rule sets or statistical signals. Robust back-testing I build event-driven test environments that respect market microstructure: realistic fills, spreads, latency, and transaction costs. Applied machine learning (when it adds value) Some problems benefit from additional pattern-detection—regime classification, order-flow imbalance, or adaptive position sizing. Where appropriate, I incorporate ML techniques, but only when they improve risk-return relative to simpler rules. Deployment & oversight Strategies can be delivered as semi-automated tools (you review signals, click to trade) or fully automated pipelines posting orders to Interactive Brokers, Alpaca, or exchange APIs. Independent model review Funds often retain me for a “second opinion” on in-house or vendor models before capital is committed. I examine code, data-handling, leakage risk, and performance attribution, then provide a concise report highlighting strengths, weaknesses, and remedial steps. Expert witness & litigation support I assist in cases involving algorithmic trading, model risk, or market abuse—providing clear technical analysis and expert testimony. --- I'm very laid back about how engagements begin, and I appreciate that clients are keen to have conversations with multiple freelancers before choosing one. I'm happy to have a call and chat through your ideas and what I can add while you're deciding. Whilst I'm not new to quant finance, I am new to Upwork, and I've set my rate artificially low while I get some initial reviews. Pls see my work history, bio, and website for more information. Bayesmetricanalytics.com

Detail-oriented 𝐐𝐀 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 with 2.6+ years of experience in 𝐌𝐚𝐧𝐮𝐚𝐥, 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧, 𝐀𝐏𝐈, and 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 for 𝐖𝐞𝐛 and 𝐌𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. I specialize in ensuring software quality through well-structured test strategies, automation frameworks, and thorough validation processes that help clients deliver 𝐛𝐮𝐠-𝐟𝐫𝐞𝐞, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞. 𝐌𝐚𝐧𝐮𝐚𝐥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Experienced in the full QA lifecycle — from requirement analysis and test case design to execution, defect reporting, and documentation. Proficient with tools like JIRA, BrowserStack and TestRail for efficient test management and collaboration. 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Developed a Hybrid Test Automation Framework using Java, Selenium WebDriver, Playwright, TestNG, Maven, and POM, integrated with Allure Reports, ExtentReports and Log4j2. Implemented CI/CD pipelines using Jenkins and GitHub Actions to automate test execution on code commits and pull requests. Experienced in parallel and cross-browser testing using Selenium Grid and Playwright’s built-in capabilities to ensure faster and reliable automation runs. 𝐀𝐏𝐈 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Hands-on with Postman and Rest Assured for RESTful API validation. Skilled in schema validation, functional, and security testing, along with SQL-based database verification to ensure end-to-end data integrity and reliability. 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 & 𝐌𝐨𝐝𝐞𝐫𝐧 𝐓𝐨𝐨𝐥𝐬: Executed load and stress testing using JMeter to analyze performance under real-world conditions. Familiar with BDD frameworks (Cucumber) and modern automation tools like Playwright and Cypress. Experienced in Git/GitHub for version control and Docker for test environment setup. 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲: Active contributor in Agile/Scrum teams, participating in sprint planning, QA strategy design, and release validation. Known for clear communication, quick adaptation, and consistent delivery of high-quality results. I’m passionate about improving testing efficiency, adopting new technologies, and building reliable QA solutions that ensure top-quality software delivery for every client.

PROFESSIONAL EXPERIENCE I'm an experienced QA Engineer with a passion for ensuring high-quality software products. I have experience working with clients across various industries, from startups to large enterprises, and have gained expertise in manual testing, test automation. As an automation tester, I can help you with: 1) Creating and maintaining test automation frameworks. 2) Proficient in Selenium and Java, with a strong understanding of test automation frameworks. 2) Developing and executing automated test scripts. 3) Integrating automated tests into the CI/CD pipeline. 4) Ensuring that the test automation is reliable, maintainable, and scalable. As a manual tester, I can help you with: 1) Creating test plans and test cases 2) Executing manual tests and recording test results 3) Reporting and tracking defects 4) Performing regression testing and user acceptance testing 5) Ensuring that the software meets the client's requirements and is user-friendly Here are some of my skills and qualifications: 1) Proficiency in testing tools such as Selenium, and Postman 2) Experience in programming languages such as Java, Python, and JavaScript 3) Familiarity with Agile methodologies and DevOps practices 4) Strong analytical and problem-solving skills 5) Excellent communication and collaboration skills 6) Attention to detail and accuracy 7) Ability to work independently and meet deadlines 8) Positive attitude and willingness to learn I'm committed to delivering high-quality work and ensuring that the products I test meet the client's requirements and are user-friendly. Let's connect and discuss how I can help you achieve your testing goals.