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Data Visualisation Consultant specialising in d3.js with a passion for bringing data to life with this fantastic tool. * React, Angular, Typescript, web apps. * Available at any stage in the project - from raw data through to fully developed Figma design. * UK based * 100% commitment and 100% quality * keeping Upwork customers happy since 2016

Need a smooth, bug-free product before launch? I help start-ups, agencies and independent developers ship software that works, catching functional bugs, usability issues and cross-device inconsistencies early, so you avoid bad reviews and costly fixes later. With 6+ years of QA experience across healthcare, legal tech, and the third sector, I bring structure and clarity to testing, and I communicate results in plain language your whole team can act on. What I deliver: • Functional, regression & exploratory testing (web + mobile) • Cross-browser and cross-device testing (desktop Windows, iPad, mobile IOS) • Clear bug reports — screenshots/video, expected vs actual, reproduction steps, severity priority • Test case creation and QA documentation • API & backend-response validation • UX & usability feedback — I highlight what confuses real users, not just what breaks the code • Requirements review & user story writing — if you need help defining what to build before testing it • Spanish-English translation & proofreading — native Spanish speaker, fluent English, 20+ years in the UK. Tools I use: Chrome DevTools · BrowserStack · Postman · Trello · Notion · screen recording for video bug reports Why work with me: I combine attention to detail with clear, fast communication. I adapt to your workflow — whether you need a quick pre-launch bug hunt, a full test cycle, or a fresh pair of eyes on your UX. I work well with small teams and solo founders who need reliable output without the overhead. Recent work includes a pre-pilot QA review for a non-profit platform, covering admin workflows, access control, end-user journeys, and UX friction — delivered as a prioritised bug report ready to hand straight to a developer. Send me your build or URL and I’ll deliver a detailed QA report within 24–48 hours.

I have 10+ years of experience in building user-friendly and complex mobile applications. I have a solid knowledge of modern mobile app development using Kotlin, Jetpack Compose, Clean Architecture, high standards, and the latest trends in Android technology's stack. Digging into business problems is a crucial part of my approach. I believe in architecting solutions that not only meet immediate technical needs but also align with the business goals of the organization. Important highlights of my work: • Most Mobile apps in my portfolio are built from scratch by me where I was a leading engineer. • My response time is 1 hour maximum. I am always in touch. • I know how to achieve a 99.9% crash-free rate. • I was elevating the app rating from 2.8 to 4.6 stars out of 5 in Google Play. • I am not an agency, I am doing 100% work in person. • I provide efficient work and I am able to replace a small mobile team. • My hourly rate is negotiable. Feel free to suggest your rate. My technical skills: • Programming languages: Kotlin, Java, SQL. • Tools: Kotlin coroutines, RxJava, Retrofit, Apollo GraphQL, Dagger/Hilt, Room, Android architecture components. • Frameworks: Android, Jetpack Compose, Firebase, Facebook, AdMob, Google Maps, Segment, Iterable, Apollo GraphQL. • Architecture: Multi-modular, Clean, MVP, MVI, MVVM • Environments: Android Studio, JIRA, Confluence, Youtrack, Git, Jenkins. • Methodologies: Agile, Scrum, Kanban • CI: Bitrise, Jenkins • VCS: Github, Gitlab, Bitbucket • Image loading and caching: Picasso, Glide, Coil. • Unit tests: JUnit, Mockito, Robolectric. • Other: Team leadership, Code review, Scrum master, Consultant, Mentor. Let's collaborate to bring your mobile app ideas to life and make them stand out in the competitive app market.

My background is in ecological research: using advanced numerical methods to address ecological problems. I received my PhD in 1998, and have worked as a biostatistician and ecologist at a range of universities and government institutes in Australia and California. As a statistician, I have consulted widely for students, academics, and State and Federal research scientists and agencies. I have taught sampling and experimental design and statistical analysis courses in several countries using SAS, R, Statistica, Systat, and SPSS. I have over 50 peer-reviewed publications and am an experienced reviewer for a range of journals. As a researcher, I will provide you with not only the end product, but also the reasoning behind the analytical decisions, and potential alternative approaches. Where necessary, I will write a formal description of results suitable for a report or journal publication. I am experienced in analyzing data from many different disciplines, so can work with anything from business data, through to questionnaires, to conventional sampling data. I have a wide range of experience in analytical approaches including: - Advanced sampling and experimental design; - Generalized (including Generalized Additive Models) linear modeling; - Generalized Linear Mixed-Effects Modeling; - Multivariate ordination (unconstrained and constrained) and clustering; - Spatial autocorrelation, Semivariance, and Geostatistical analyses; - Classification and Regression trees (including bagging, boosting and random forest approaches); - Non-linear and segmented regression; - Overdispersed, zero-inflated and hurdle models; - General randomization approaches I primarily work in R and Python however I have also taught SAS, Statistica, Systat, and SPSS. I can generate RShiny interactive analytical pages, so you can maintain an online expert system of the analyses you need to use regularly. Additionally, while not my main field of expertise I can construct databases using MariaDB/MySQL, write custom SQL queries as part of the package. All I need is the list of users and the CSV files of the data, and either a means of connecting to your server or I can send the SQL code for you to run yourself. If you would like to use my services, please send me a message and we can arrange a call to discuss your project, what you would like from it - simply to make sure we are on the same page. I need to understand the ‘why’ of the project, so I can deliver the ‘how’ and the final result.

𝗣𝗵𝗗 𝗶𝗻 𝗣𝗿𝗼𝗴𝗿𝗲𝘀𝘀 | 𝗠𝗦𝗰 𝗶𝗻 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 & 𝗙𝗶𝗻𝗮𝗻𝗰𝗲 | 𝗕𝗦 𝗶𝗻 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗨𝗞-𝗕𝗮𝘀𝗲𝗱 | 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝗱 𝗦𝗶𝗻𝗰𝗲 𝟮𝟬𝟭𝟴 | 𝗗𝗶𝗿𝗲𝗰𝘁 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝘁𝗼 𝗨𝗞, US, EU, and AUS 𝗦𝘁𝘂𝗱𝗲𝗻𝘁𝘀 Are you looking for a reliable, insightful, and technically skilled academic writer who understands both the science and the strategy behind academic excellence? I’m Nayab Naveed — a researcher and academic consultant helping students since 2018 across machine learning, software engineering, computer science, essay writing, and business management. With a proven track record of success delivering to direct clients in the UK, I now bring my academic writing and technical expertise to the Upwork platform, offering research-driven, plagiarism-free, and expertly formatted content tailored to university standards. 🔍 Academic & Technical Writing Services: • Thesis and Dissertation Writing • Literature Reviews (Traditional & Systematic) • Research Papers and Proposals • Case Studies and Business Reports • Annotated Bibliographies • Technical Writing (Python, R, ML Concepts) • Editing, Proofreading & Formatting (APA 7th, Harvard, MLA, Chicago) 💼 Why Hire Me? ✔️ UK-Based & Actively Engaged with UK Academia ✔️ MS in Machine Learning with Finance Focus – Developed hybrid LSTM models for global stock market forecasting ✔️ Hands-on Tools: Python, R, Excel ✔️ Expert in Both Qualitative & Quantitative Research ✔️ Well-Versed in Referencing & Ethical Research Practices ✔️ 100% Manual, AI-Free Work with Turnitin-Ready Results ✔️ Excellent Communication & Fast Turnaround Times ✔️ Unlimited Revisions & Client Satisfaction Guaranteed 🛠️ Technical & Academic Tools I Use: • Python, and R Studio • Grammarly Premium, Turnitin Instructor Account • EndNote, Zotero for Reference Management • MS Word, LaTeX, Google Docs 📩 Looking to elevate your academic work with expert help? Let’s connect! Message me or send an invite — I'm available and excited to support your academic success. ✅ First-time client? Ask for a discounted trial order to see my quality firsthand! 🔁 Open to long-term contracts with flexible budgets for regular academic support.