I build end-to-end IoT + automation systems: embedded firmware + sensors + edge compute (Raspberry Pi) + cloud APIs + dashboards—then I add ML/AI where it actually improves results (vision, anomaly detection, forecasting, smart alerting). If you need a system that runs reliably 24/7, logs the right data, and has a clean UI for monitoring/control, I’m your guy. What I do best Embedded + IoT + Automation Hardware + firmware on ESP32/ESP8266, Arduino, Raspberry Pi Sensors + controls: pressure, temperature, humidity, motion, current monitoring, relays, solenoids, valves, pumps, motors, etc. Protocols + comms: UART, I2C, SPI, RS485/Modbus, MQTT/HTTP, GSM/4G modules Deliverables: wiring diagrams/pinouts, clean code, robust state machines, watchdogs, retries, fault handling ML/AI for real-world devices Python ML pipelines using NumPy/Pandas/scikit-learn (and deep learning when needed) Use-cases: sensor anomaly detection, predictive maintenance, computer vision (OpenCV), classification/scoring, smart alerts Deploy models on edge devices (Raspberry Pi) with practical performance constraints Web Dashboards + APIs Backends: FastAPI / Flask / Django (REST APIs, auth, RBAC, background workers) Frontends: React / Next.js dashboards with charts, real-time updates, admin panels Databases: PostgreSQL/SQLite; event + telemetry logging, audit trails, analytics Chatbots + RAG (Retrieval-Augmented Generation) Build support/ops chatbots that can answer from your docs/knowledge base Ingestion + chunking + embeddings + vector search + guardrails Integrate into web apps, Slack/Telegram/WhatsApp-style workflows How I work I clarify requirements fast, then deliver in milestones: prototype → stable MVP → production hardening Strong focus on reliability: retries, monitoring, logs, edge-case handling, clear documentation You get a system you can actually maintain (not a fragile demo) Typical projects clients hire me for Remote monitoring/control for equipment (pumps, tanks, power systems, access control) Raspberry Pi edge gateways + sensor telemetry + dashboards ESP32 automation firmware + mobile/web control AI-assisted monitoring (vision/anomaly alerts) + web dashboard RAG chatbot for customer support or internal operations If you’re building an IoT product, automating a real-world process, or adding AI to a system that already works, message me with what you have (requirements, diagrams, repo, or photos). I’ll help you ship it cleanly.

*Ph.D. in Science with expertise in scientific research, X-ray science, X-ray spectroscopy, and materials characterization. XRF, XRD, PIXE, EDX *Data Scientist with experience in game theory, financial analysis of SEC filings, and stock market modeling using machine learning, including supervised and unsupervised learning techniques. *Online Tutor with over 1,000 hours of experience on platforms such as Upwork.com and Tutor.com. Subjects taught include mathematics, chemistry, statistics, and physics at high school and early college levels. *Generative AI Experience: Skilled in analyzing, training, and creating AI prompts across diverse topics. Experienced in prompt engineering, fine-tuning, and retrieval-augmented generation (RAG). *Programming Languages: Proficient in Python, MATLAB, and SQL. *Languages: Spanish (Colombian native), Portuguese ( living in Brazil), and English (advanced; used daily in professional communication).

I am a skilled Python developer, Data scientist, and Mathematician, with extensive experience in machine learning, writing, academic services, such as tutoring, proofreading, formatting (e.g., APA/MLA) and web technologies like HTML, React, Django, Angular and SQL. In addition to software development, I am also an experienced mathematics, statistics and economics tutor. I specialise in data science, mathematical modelling and regression analysis, and I am proficient with tools such as R, STATA, SPSS, NVivo, MATLAB, and Google Cloud Platform services. If you need help with your projects, whether it's complex data analysis, academic and professional guidance, Agentic systems or software solutions, I’m here to deliver high-quality work efficiently. Let’s collaborate and get things done.

⭐️⭐️⭐️⭐️⭐️ 5.0 I am a research associate and data analyst with strong expertise in environmental science, air quality modelling, climate policy analysis, statistical modelling, and academic research. I support clients with high-quality technical analysis, data-driven research, scientific writing, and coding across a wide range of academic and professional projects. My technical skills include data science, machine learning, statistical analysis, Python, R, Fortran, geospatial analysis, air pollution modelling, climate and environmental data analysis, and scientific visualization. I can help with data cleaning, exploratory data analysis, model development, regression analysis, machine learning workflows, code debugging, automation, reproducible research pipelines, and interpretation of complex results. Alongside my technical work, I also provide academic writing, editing, proofreading, and research mentoring services. I help students, researchers, and professionals improve the clarity, structure, coherence, and academic quality of their work. This includes literature reviews, methodology sections, research proposals, dissertations, journal manuscripts, reports, presentations, and data analysis write-ups. I also specialize in improving and humanizing AI-generated texts. I can revise AI-assisted writing to make it sound more natural, original, academically appropriate, and aligned with the intended audience, while preserving the author’s ideas and voice. My approach is careful, reliable, and detail-oriented. I aim to deliver work that is technically accurate, clearly written, and suitable for academic, professional, or publication purposes. Whether you need support with data analysis, coding, research design, scientific interpretation, academic writing, or editing, I can help turn complex ideas and datasets into clear, polished, and meaningful outputs Some of my previous client's feedback: "He has great knowledge and provide the information which I need immediately" "He is really easy to contact and he did a great job" "The job Nosha completed was excellent. He was very easy to work with, understood perfectly what I needed and was always available to talk about the project. He completed the work ahead of time and with very high quality. I fully recommend him" "He understood the job very quickly and did exactly as per requirement. Submitted on time. Punctual. And knows his work well. Very happy with his work." "He is a real creative and resourceful software engineer. He is very professional. I really recommend him for any work" "Nosha did a good job and is a great self-starter. Did not have any questions and got the job as I asked. Would highly recommend him."

I'm a data analyst with 5+ years of professional data experience. I am statistical consultant/data scientist. For a fixed fee I provide my clients with unlimited support, clear explanations, well-documented code, and actionable insights. I have experienced in carrying out data analysis and visualization using and google sheets, Ms Excel, Google Data Studio and very good at summarizing data on google sheets using pivot tables; producing useful time series analysis charts that would help sales teams make the right decisions on the position of their business. My services include: ✅ Data analysis/data science/predictive modeling for business and research purposes using methods from data mining, machine learning, econometrics and statistics (including, but not limited to, medical statistics, biostatistics, epidemiological statistics, and neuroscience data analysis) ✅ Simulation and Forecasting ✅ Developing Shiny Apps for data science/business analytics ✅ Causal inference (propensity score matching, regression discontinuity design (RDD), difference-in-difference (DID) estimation, event studies) ✅ Quantitative market research data analysis (including CHAID, CART, conjoint analysis, regression analysis, ANOVA, multilevel modeling, Van Westerndorp's Price Sensitivity Meter (PSM), Market Basket Analysis, attribution modeling, marketing mix modeling, and other advanced techniques) ✅ Statistical consulting/tutoring on using R, Stata, SPSS, EViews, Statistica, and Excel Please, feel free to contact me ✅ AutoCAD, Candance, Matlab, Stata, RapidMiner MATLAB, LabVIEW, Microsoft Visual Studio, Wireshark, Microsoft Office

Hi, I’m Sakshi: an engineer turned tester & data analyst with 4+ years of writing experience. I help all sort of companies, tech startups, and enterprise vendors who need testing or data analysis or data visualization services. I also work as a moderator for multiple companies as I am very good at organization, collaboration and responsibility. I do functions that builds authority, supports sales, and drives customer engagement. I'm a motivated life-long learner with a passion that never fails me, fused with a degree in business administration with a specialization in IT & marketing, empowers me tounderstand my client needs effectively. And the same passion lets me spend hours and hours manipulating Excel spreadsheets, to gain something worthwhile. You can hire me for: 1. Professional Power BI Service Jobs 2. Professional Excel Jobs 3. Professional Content Jobs 4. Professional Virtual Assistance Jobs. 5. Creating Presentations, PPTs, for online courses. 6. Online Tutoring of English, Hindi, Mathematics, Science, EVS, Excel. 7. Transcription, Translation and Meeting Notes. 8. Statistics, Humar Resources, HR, Excel and SEO/Digital Marketing work. 9. Work related to quizzes, back end uploading, WordPress uploading, transcriptions, translations (English to English), paraphrasing, data entry, e-commerce jobs, Instagram jobs, YouTube jobs, editing jobs, proof reading jobs etc. 10. Text to Speech Services/ Voice-Over services 11. E-Books, Amazon Books I have been proactive and focused as a student, and now I am an enterprising individual with good interpersonal skills with strong analytical, comprehensive problem-solving abilities & a willingness to learn.

I have been teaching/tutoring math and doing related research for over 18 years now, I have taught at Northeastern University and Turkey. I have a PhD in Mathematics (an application of mathematical modelling in biology). I can help with mathematical research, especially computational/statistical research. My research required data analysis and modelling, which were conducted in Matlab and related tools (especially Simbiology). Being an active Project Euler contestant, I am extremely interested in designing and executing innovative algorithms for computational math questions (my preferred programming language is Java). Recently I was able to do some work related to Computational Geometry. I have created my own code in Java for this work. I am also experiencing with CGAL libraries. As someone teaching college level math for more than 15 years, I can provide online tutoring in almost any field of math and prepare math questions and/or detailed solutions for all levels: -All college level math/statistics -SAT, GRE, GMAT Quantitative Sections -Multiple Choice Math Questions -For various college level courses (Highly technical, purely algebraic or word problems) I have also done a lot of LaTex typing, for teaching and for my own research. I can type the whole document or help with editing. I have been doing freelance work in tutoring and translation for more than 14 years now. I have translated Jordan Ellenberg's "How Not To Be Wrong" into Turkish, which is in revision for publication.

I am pursuing a Master of Science in Mechanical Engineering. I have gained practical experience in both structural and fluid analysis through projects using SolidWorks and ANSYS, and I have developed extensive code in MATLAB, Python and C++. I have experience in academic writing, technical documentation, and complex document typesetting. In LaTex, I have experience with TexStudio and Overleaf, and the TexLive package. My professional experiences include working as a technical director in an automotive diagnostic center, as a maintenance and assembly engineer in a transport company, and as a technical research specialist, which has allowed me to translate complex technical developments into clear, concise insights. I am skilled at synthesizing detailed information into structured reports. My academic background includes extensive coursework in statics, material resistance, machine mechanics, machine design, mechanisms, fluid power, mechatronics, and different numeric methods such us FEM, VEM, BEM. During my master's program, I have taken courses in Engineering Modeling & Simulation, Design of Experiments, and the Boundary Element Method, which is highly relevant for structural analysis and studying crack growth. In my undergraduate studies, my thesis on supersonic nozzle design gave me a solid foundation in fluid mechanics and dynamics. My current master's work on crack growth in thin-walled pressure vessels further deepens my understanding of structural analysis. Thank you for your time and consideration. Best regards, Omar Fuentes

I am a seasoned Electronics Design Engineer with over 7 years of experience in developing functional prototypes and PCB boards. As a Senior Hardware Design Engineer and Team Lead, I specialize in both hardware and firmware design, guiding the design process from concept to assembly. My hands-on approach ensures high-quality results, whether leading a team or working independently. Let’s collaborate to bring your ideas to life with precision and efficiency.

I am a Professional Mechanical Design Engineer with over 10 years of experience in the CAD Modelling, Product design and 3d printing. with the great experience in 3d printing field and dealing with all types of printers, I can deal with anything related to that field. my experience includes: ✅CAD Modelling (SolidWorks -Fusion 360) ✅Character Modelling (Z.Brush ) ✅Blender (in 3d printing ) ✅logo 3d modelling for 3d printing ✅3d printing (Resin &FDM 3d printing) (chitubox-Cura -Bambu Studio -simplify 3d) ✅Prepare and repair STL for 3d printing ✅Repair STL, OBJ. file, SKP. files (architectural designs) for 3D printing ✅fixing non-manifold meshes and edges. ✅Converting between File formats (All 3d formats) ✅Triangles reduction (to make the 3d model size smaller) ✅scaling dimensions of the 3D model. ✅Splitting large 3D model to fit your printer size. ✅digging holes and splitting shells ✅Refining models. ✅splitting parts to be assembled. Feel free to contact me with your project brief and I will provide you support for your task. Thanks,