I'm a Chemistry graduate with experience working with Google Sheets and technical or scientific writing.
I work accurately with data, entering, organizing, editing and verifying information in Excel or Google Sheets, and AI annotation, focusing on details and good structure.
I'm detail-oriented, organized and confident in working with clear and structured tasks.
My background in chemistry allows me to comprehend, organize and review scientific or technical content more effectively. I also have experience editing and writing scientific content in Greek.
I'm available for part-time remote work.
Chemistry
Data Entry
Technical Writing
AI Content Editing
Scientific Writing
Scientific Research
Editing & Proofreading
Google Sheets
Louisa X.
Athens, Greece
$40/hr
5.0
250 jobs
I am a Graphic Designer & Illustrator with 15+ years of professional experience, specializing in branding, illustration, and pattern design.
I studied Graphic Design at Vakalo Art & Design College, where I was awarded a scholarship for the MA Graphic Design program. I’ve worked both freelance and in-house, delivering a wide range of projects including logos, corporate identities, packaging, patterns, promotional materials, posters, outdoor branding, stationery, and website design.
I collaborate closely with clients to understand their goals, manage tight deadlines, and deliver clear, effective, and visually strong design solutions. I’m passionate about turning ideas into meaningful visual communication and creating work that is both strategic and visually impactful.
Let’s bring your ideas to life!
Logo Design
Stationery Design
Label & Packaging Design
Brand Identity Design
Vector Art
Illustration
Minimalist
Art Deco
Line Drawing
Corporate Brand Identity
Retro & Vintage Style
Digital Pattern Design
Branding
Travel
Business Card
Konstantinos L.
Chania, Greece
$40/hr
5.0
174 jobs
With a perfect 100% job success score and 9 years of LaTeX development experience, I deliver top-tier quality and efficiency for all your typographic needs (via LaTeX).
I have graduated as a Physicist (BSc) and as a student, I have been awarded twice by the Hellenic Mathematical Society.
Why to hire ME?
Choosing a seasoned LaTeX developer means beyond-standard results, efficient finalization, and cost-effective solutions, ensuring exceptional quality and time-savings for your projects.
Quality and satisfied ex-clients:
✅ For the last 9 years, I have been working as a perfect-rated LaTeX (top rated plus for 2 years and 100% JSS -almost always-) developer and editor with excellent evaluations and reputation...
My work ethic and efficiency save time—your most valuable asset—and reduce costs without compromising on quality:
✅ I am doing the best possible in the given time by selecting the appropriate tools to combine with my LaTeX code (as minimal as possible but appropriate LaTeX-packages selection ---TikZ, etc--- and programming languages as Qt/C++ or Python etc).
Skills (Physics is the King of Sciences and helps you to learn solving problems using data. Also, teaching means been teached)
✅ Besides, since 2000 I have been teaching Physics, Mathematics, and Computer Programming for every level up to University.
I have gained collaboration/teaching skills and trust:
✅ I was a professor's assistant for 4 different professors during my University studies.
✅ I was among the top members of the forum TeX.StackExchange.com (about LaTeX Programming) over the past four years, assisting LaTeX users (sometimes really advanced) in solving problems on LaTeX typesetting.
Skills:
✅ LaTeX
✅ XeLaTeX
✅ LuaLaTeX
✅ Physics (BSc by University of Crete)
✅ Mathematics (University plus awards during School studies)
✅ Programming (Qt/C++, PyQt, C++, C and Python)
✅ English (Advanced -certified from Hellenic American Union-)
✅ Automations
✅ TikZ
✅ Technical Writing
✅ Scientific Writing
✅ Data Visualization
✅ Desktop Application
✅ Scripting
✅ Editing & Proofreading
✅ Virtual Assistance
✅ Graphic Design
✅ Presentation Design
About LaTeX I would like to mention that:
➡ LaTeX (and all TeX family of programs) is Programming. If you need anything more than a standard TeX/LaTeX output, you should consider hiring a LaTeX developer rather than a LaTeX editor.
➡ Finalization is an essential part of a LaTeX document. It could even take as much time as the creation of the rest of the code, but if the template is properly designed, it saves so much time that it can be done in minutes.
➡ If you want to convert a Word document into LaTeX, the cheapest and recommended way is to
begin writing in LaTeX with a plain format or write in Word in a clear structure before you ask for a conversion.
➡ Good communication before and during the project solves many problems and saves valuable time.
Finally I have to make clear that:
❌ Since I am not a native English speaker, I can NOT PROOFREAD your documents.
✅ BUT ALSO while English is not my first language, I am advanced-certified and confident on communication and I have a proven track record of excellent communication with (also excellent) international clients.
An AI would suggest me to avoid the above negative point above and rephrase to something like:
"Focusing on the technical precision of LaTeX development and document design, I leave proofreading to dedicated professionals, ensuring the highest quality in my area of expertise."
BUT I want to be sure that you will already know this part and I don't trust AI on the ethical part*
* Actually the AI DID suggested that change.
Ready to elevate your technical or any kind of professional documents? Let's discuss your project and create exceptional results together!
LaTeX
Python
C++
Editing & Proofreading
Physics
Mathematics
TikZ
Technical Writing
Scientific Writing
Data Visualization
Desktop Application
Scripting
Virtual Assistance
Graphic Design
Automation
Michail G.
Kallithea/ Katerini, Greece
$110/hr
4.4
331 jobs
Chemical Engineer, PhD
#1 in successful projects on Upwork (among chemists and chemical engineers)
#1 in earnings on Upwork (among chemical engineers and process engineers)
Head Chemical Engineer at Hydrogen Dynamics
Research / Computational Chemist/ Chemical Engineer at BIC World
Chemical Engineer at TERSUS Group [past]
Chemical / Process Engineer at Qaptis [past]
Subject Matter Expert at ControlRooms AI [past]
Chemical Engineering Specialist/ Lecturer at LondonTFE
Chemical Engineer Specialist / Computational Chemist at MVS Pharma
Chemical Engineer/ Process Engineer / Consultant at IndustriaSYS
Chemical Engineer/ Owner at SinodosChemistry
Providing the following services since 2003:
- Investigation of physical and chemical processes
- Computational Chemistry simulations for nano and micro level physical, chemical, electronic, optical properties evaluation and the description of physical and chemical processes
- Computational Fluid Dynamics [CFD] simulations for product development, product optimization, process design, process optimization, process troubleshooting
- Process Simulation to create mass balances, energy balances, process flow diagrams [PFDs], plant wide descriptions, setting up of whole industrial processes
- Scientific literature reviews in areas of Chemistry, Chemical Engineering, Industrial Engineering, Material Science, Oil & Gas, Polymers, Solar Energy, Green Technology, Electrochemistry, etc
- MatLab modelling for physical and chemical processes, Reaction simulation, and other complex systems
- White papers
- Technical papers
- Opinion papers
- Feasibility studies
- Chemical Model building
- Financial feasibility of physical, chemical and manufacturing processes
Scientific Consultation since 2010:
- Oil & Gas
- Polymers
- Smart materials
- Composites
- Disinfectants
- Anti microbial agents
- Ionic Liquids
- Separation Processes
- CBD/ THC purification
- Clean energy
- CO2 capture
- H2 storage and H2 utilization
- Zero emission power plants
- Novel coatings
- Separations & purifications approaches
- Distillation, Adsorption, Absorption, Extraction
- MatLab Modelling
Scientific WEBINARS in the fields:
- Reactor Engineering [design, operation, troubleshooting]
- Thermodynamics Fundamentals
- Separation Processes: Adsorption, Absorption, Distillation, Extraction
- Electrochemistry and Electrolysis
- Catalysis
- Modeling and Simulation of Physical and Chemical processes
- Introduction to Computational Chemistry & HyperChem
- Introduction to Computational Fluid Dynamics & SimScale
- Introduction to Process Simulation & DWSIM
- The complete simulation WEBINAR for Chemical Engineering [Computational Chemistry, CFD, Process Simulation]
- CO2 technology: Capture, utilization, zero emissions power plants, storage
- H2 technology: Generation, storage, utilization
- Disinfectants: Types, formulations, application types and advances
- Organic Chemistry chapters
- Polymer Technology
- Oil & Gas fundamentals
- MatLab for Engineers
Editorial board member at International Journal of Computational and Theoretical Chemistry
Scientific publications reviewer for Elsevier Journals
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