Which is the best online learning platform jobs

...of a talented and experienced developer to build a large language model (LLM) primarily focused on generating unique and highly creative text. The model should be capable of creating imaginative pieces such as stories and poems. Key Requirements: - Expertise in machine learning, particularly in developing LLMs. - Proven experience in text generation models. - Ability to create a model that can produce highly creative and unique content. Ideal Skill Set: - Proficiency in Python and relevant ML libraries (e.g., TensorFlow, PyTorch). - Strong background in NLP (Natural Language Processing). - Experience with creative writing or story generation models is a plus. I'm looking for a professional who can deliver a cutting-edge model that exceeds my expectations in ...

I'm looking for a comprehensive platform that connects architects and designers with homeowners. The platform should: - Display designer portfolios linked to a magazine page. - Manage projects through an integrated CRM system. - Facilitate online shopping for interior products. Key features of the CRM include: - Task management - Client communication - Document storage - Payment management - Approval system for budget increases - Updates on project site - Material requirements - Attendance tracking Essentially, this platform should handle payments, sell products, and provide a seamless communication and project management experience. Ideal candidates for this project should have extensive experience in developing similar platforms, with str...

# Dream Wed - Wedding Services Marketplace Platform Development ## Project Overview We're seeking experienced developers to build Dream Wed, a comprehensive wedding services marketplace that connects couples with wedding vendors and service providers. The platform will streamline the wedding planning process through an intuitive interface and robust functionality. ## Required Skills - Frontend Development: React.js, - Backend Development: Node.js/Python - Database: PostgreSQL - Mobile Development: React Native/Flutter - UI/UX Design expertise - Experience with payment gateway integration - Microservices architecture knowledge - API development experience ## Project Scope ### Frontend Development 1. **Homepage Development** - Full-width hero section ...

I'm looking for a ...looking for a skilled AI developer to create software that can generate casual and friendly lifestyle blogs, specifically focused on health and wellness. Key Requirements: - The AI should be capable of writing in a tone that is casual and friendly, emulating the style of popular lifestyle bloggers. - The software should be able to cover a variety of health and wellness topics. - The AI should be able to generate content that is engaging, informative, and suitable for a lifestyle blog. Ideal Skills: - Strong background in AI and machine learning. - Excellent understanding of lifestyle blogging, particularly in the health and wellness niche. - Experience in developing AI for content creation. Please include...

I'm looking for a comprehensive platform that connects architects and designers with homeowners. The platform should: - Display designer portfolios linked to a magazine page. - Manage projects through an integrated CRM system. - Facilitate online shopping for interior products. Key features of the CRM include: - Task management - Client communication - Document storage - Payment management - Approval system for budget increases - Updates on project site - Material requirements - Attendance tracking Essentially, this platform should handle payments, sell products, and provide a seamless communication and project management experience. Ideal candidates for this project should have extensive experience in developing similar platforms, with str...

...according to the specified guided steps from me. Key Responsibilities: - Follow the guided steps instruction carefully and perfectly - Make at least 15 full flow steps a week. Ideal Skills: - Strong in learning and understanding in SOP (standard operation procedure) - Excellent reporting skills - Proficiency in AI software tool like chatGPT - Ability to use canvas (or willing to learn it) Experience: - Prior experience in using AI softwares - Experience with YouTube content creation is a plus This is a great opportunity for those with a passion for finance and content creation. The job steps are very easy, it's a routine job that you need to do for long-term period. Please check our YouTube channel @IM-AAM_Official, this is are ...

Two mini-projects at the bachelor level of computer studies in the C language in a Debian GNU/Linux environment Project 1: The goal of this project is to write a C library that provides a signal-controlled logging system for application state files. The logging system should meet the following requirements: 1. It should be controlled by real-time signals and utilize the data carried by them. 2. Signal handling should be implemented by code executed asynchronously. 3. One of the control signals should enable writing the current internal state of the application to a separate file (a “dump” file). The content of this file should depend on the application and be configurable within it. Each occ...

You have a pre-built java vaadin saas platform? I'm looking for an experienced developer who can work with a pre-built Java Vaadin SaaS platform. The key tasks will involve extending the platform to meet our specific requirements, as well as incorporating our branding guidelines into the design. Ideal Skills: - Proficiency in Java and Vaadin - Experience with SaaS platform development - Strong understanding of UI/UX, with the ability to adapt to branding guidelines - Prior experience with platform customization and feature extension

I'm seeking an expert in AI and software development to create a unique tool that transforms text into both images and videos. Key Requirements: - The AI tool should generate images in realistic, cartoon, and abstract styles. - For video creation, the tool needs to produce content that is animated, live-action, and a blend of both. Ideal Skills: - Strong background in AI and machine learning - Proficient in software development - Experience with image and video generation tools - Understanding of varied visual styles and video production types Please provide examples of similar projects you've completed.

This project delves into the fascinating intersection of behavioral finance and data science. We aim to analyze ptivided data through the lens of investor psychology, identifying behavioral biases and sentiment drivers that influence market trends. Using R and statistical modeling, we will examine historical market data, news sentiment, and social media trends to develop predictive models of market movements. This project offers a unique opportunity to contribute to a cutting-edge research initiative with real-world applications in investment strategy and risk management. Key Deliverables: Quantitative analysis of market data and investor behavior. Development of predictive models incorporating behavioral finance insights. Comprehensive report with data visualizations and a...

I am looking for a proficient web developer to create a platform where I can sell my digital products. The platform should allow customers to access the products online through an account. Key Features Include: - Subscription Management: The platform should be capable of managing subscriptions for different tiers of access to my products. Ideal Skills and Experience: - E-commerce platform development - Subscription management system integration - Experience with digital product delivery systems A strong portfolio with similar projects will be a plus. Looking forward to your bids.

Do you have a prebuilt java vaadin platform ideally with multi role function? I'm in need of a Java Vaadin SaaS platform with 9 roles.

I'm in need of a modern, simple logo for 'Ceese The Day'. This logo should incorporate the symbol for 'create your own reality'. it is for a dj event - the dj's name is Ceese. If you want to add a vinyl record to it it could work too but we are open to interpretation Key Requirements: - A sleek and contemporary design style - Use of dark, bold colors - Integration of the 'create your own reality' symbol into the design Ideal Skills: - Proficiency in modern graphic design - Strong understanding and experience in logo creation - Ability to creatively incorporate specific symbols into designs. Previous experience with bold, minimalist designs is a plus. Please provide a portfolio of simil...

...Ideas for Budding Entrepreneurs Starting a business could be one of the most fulfilling and rewarding journeys. Be it trying to solve a problem, creating value, or making people financially independent, the right choice of business idea plays an important role. The following are some innovative ideas that entrepreneurs can take up to leave their mark in the world of business: 1. E-commerce of Niche Products E-commerce will continue to grow, but success usually occurs when targeting a niche market. Selling a product that a particular audience would want-for instance, handmade products, eco-friendly products, or fashion items that are a little different-can make your business stand out. It's never been easier to get your online store up and runn...

...Networks (GANs) to achieve accurate and reliable results. The task involves: Preprocessing: Augmentation and cleaning of the dataset. Model Development: Building and training a GAN-CNN hybrid model for CHD detection. Validation: Testing and validating the model to generate results, including metrics like accuracy, sensitivity, and specificity. Deliverables: Fully functional code (Python/TensorFlow/Keras, Google Colab preferred). Final results and visualizations (accuracy metrics, confusion matrix, etc.). Proper documentation of the steps and methodology. I have an example Google Colab notebook that can be shared as a starting point. The preferred deadline is Monday, January 13, but I can extend the timeline slightly if additional time ...

...our educational platform, which is based on the **EduAppGT Pro School System** Over the years, the platform has been heavily customized, and we aim to further enhance it while integrating it with a newly developed mobile application. #### Scope of Work: 1. **Mobile Application Development (Flutter)**: - Develop a completely new mobile application using **Flutter**, fully integrated with our existing educational platform (for student Users Only). - The app will provide key features such as student and teacher dashboards, interactive learning tools, notifications, and more. 2. **Ongoing Platform Development (CodeIgniter)**: - Customize, enhance, and maintain our existing web-based platf...

We are seeking an experienced content writer who is proficient in Indian languages (excluding Hindi) to create engaging content in the fields of insurance and fintech. The ideal candidate should have a strong understanding of these domains and be able to produce high-quality articles that resonate with our target audience. Ai or plagiarized content would be rejected. Process would be, I will share the topic and you need to share the layout first, post approval of layout, you need to submit the article within 24 hours. If you're passionate about writing and have expertise in these sectors, we want to hear from you! Kindly share your charges in the subject line Thank you

I'm looking for a skilled programmer or data analyst who can utilize memory reading techniques to extract specific data from an online game. The main focus will be on NPC data and in-game currency exchange rates. Key Tasks: - Use memory reading to capture NPC data - Track and log current in-game currency exchange rates Ideal Skills: - Proficient in programming (Python, C++, etc.) - Experience with memory reading tools - Knowledge of data analysis - Familiarity with online gaming environments Please provide examples of similar projects you've successfully completed.

I need help with extracting specific data from an online game using tcpdump or Wireshark. The primary focus is on Non-Player Character (NPC) data, specifically: - NPC Trades: A particular point of interest is the data that is available on one specific NPC, which has in-game currency exchanges. Ideal candidates for this project should have experience with network packet analysis tools like tcpdump or Wireshark, and have a good understanding of online game mechanics.

...for a Machine Learning specialist with experience in large language models (LLM), specifically Llama 3.1. The objective is to configure a training environment (on-premise or in the cloud), for training a specific model for analyzing responses to a sociological survey, fine tuning the model must be carried out and an evaluation pipeline must be designed. The objective is to collaborate with a research team to train a unique and specialized survey data analysis model. Main responsibilities: Configure and maintain training infrastructure (PyTorch, Python, GPU, etc.). Collaborate in the selection and cleaning of data. Adjust the Llama 3 model to respond to specific sociology prompts. Monitor and evaluate the quality...

...app designer to create a mobile and web application for Video Sense, an advanced CCTV video analysis tool. The app is primarily focused on security management and needs to have the following core functionalities: - Real-time Video Analysis: The app should leverage cutting-edge AI and machine learning technologies to analyze video content in real-time. - Incident Reporting: The app should simplify the process of reporting incidents, making it quick and efficient. The ideal freelancer for this project should have extensive experience in designing mobile and web applications, preferably with a background in security-related software. Understanding of AI and machine learning technologies is a plus. Your design should no...

...**Flutter** to work on our educational platform, which is based on the **EduAppGT Pro School System** Over the years, the platform has been heavily customized, and we aim to further enhance it while integrating it with a newly developed mobile application. #### Scope of Work: 1. **Mobile Application Development (Flutter)**: - Develop a completely new mobile application using **Flutter**, fully integrated with our existing educational platform. - The app will provide key features such as student and teacher dashboards, interactive learning tools, notifications, and more. 2. **Ongoing Platform Development (CodeIgniter)**: - Customize, enhance, and maintain our existing web-based platfor...

I need one example banner for this contest (size will be 1250pxx381px), once I like the design and style I will give full project to winning part. Key Requirements: - the character in the banners should not be futuristic, it should be real looking person like. This is an online casino project therefore keep is as good as possible. Check the sample attached, the characters could be similar. Or the characters from slot games etc.

...functional Uber for both iOS and Android. The app needs to incorporate the following key features: - User Registration and Login: A seamless and secure sign-up process for both riders and drivers. - Real-time GPS Tracking: An efficient and accurate tracking system to monitor rides in real-time. - In-app Payments: A robust and secure payment gateway for cashless transactions. In addition, I want to offer the option for cash payments, a customizable app interface, and an integrated driver support system. Ideal candidates should have: - Proven experience in cross-platform app development. - Expertise in integrating GPS and payment systems. - Good understanding of UX/UI design for customizable interfaces. - Capability to incorporate a driver support system i...

...update and customize our Saas e-learning platform, ActiveMoodle, according to specific design templates and brand guidelines. Tasks include: - Updating our site theme, including the home page and course pages, to align with the premium Maker theme with certain brand and color customizations. The premium template will be provided. - Modifying the Udemy-style course landing pages with specific visual design changes. - Ensuring course access is limited to registered or enrolled users only. The ideal freelancer for this job should: - Have a strong understanding and experience with Moodle. - Be able to implement specific brand and color customizations accurately. - Have a keen eye for visual design changes. - Understand functionalit...

...publishing and the broader publishing industry to purchase 75-80% of the E-Book rights of my book, "The Time Paradox: The Past". Key Responsibilities: - Finding potential buyers for the E-book rights, focusing primarily on the publishing industry. - Utilizing their industry connections and knowledge to reach out to potential buyers. - Assisting in the negotiation of deals to ensure a fair and profitable outcome. Ideal Candidate: - Has a profound understanding of the E-book publishing landscape. - Possesses strong networking skills and can leverage their contacts to find potential buyers. - Has experience in negotiating publishing deals in the past. - Knowledge of legal documentation associated with E-book rights...

...platforms. The app's primary focus revolves around route tracking and implementing safety precautions. These are the steps a. Login User must be able to sign up or sign in using Email and Password or Google using Clerk for authentication. Once authenticated for the first time user signs up, they must be prompts to add minimum 1 and maximum 5 emergency contacts. They can add phone number of the emergency contacts and name them. b. Working: Ability to set routes from current location to any destination Real time location and route detection Tracking if the user deviates from the route If user deviates more than 500 meters of set route then send a notification that asks if she is safe. This notification must also have a timer of 30 se...

I want to develop an animated series which concentrates on "how to make India a developed country". Trailer: In 1700 India was holding 27% of world economy. 200 years later India's share dropped to less than 3%. Why? Because British came and demolished India's native institutions. 1) Its economy deindustrialized 2) Its trade networks got destroyed 3) Its people got deeply divided by caste and creed. In just 200years India was turned from richest country to developing country. It is 21st century, still we are said as a developing country. Here comes KALAM who tells us in each episode one idea how to turn India to a developed country. Hold on to watch more ..................trailer ends I need someone to help me with the script for this traile...

I am seeking a talented creative writer with a knack for crafting captivating romance narratives. Your primary task will be to create engaging storylines that resonate with an adult audience. Ideal candidates should have: - Proven exper...seeking a talented creative writer with a knack for crafting captivating romance narratives. Your primary task will be to create engaging storylines that resonate with an adult audience. Ideal candidates should have: - Proven experience in creative storytelling, particularly in the romance genre. - Excellent command over the written word, with a flair for crafting compelling narratives. - Ability to understand and cater to an adult audience. Your creative storytelling will not only entertain but also draw readers into the beautif...

I am in need of a talented copywriter who can help me craft compelling product descriptions aimed at increasing sales. The target audience for these descriptions is the general consumer market, so the copy will need to be accessible, engaging, and persuasive to a wide array of potential customers. Ideal Skills and Experience: - Proven experience in copywriting, particularly in crafting product descriptions - Strong understanding of sales-oriented copy - Ability to write for a general consumer audience - Creativity and ability to think outside the box - Excellent command of the English language

1. Project Overview Objective: Build a robust backtesting pipeline for options trading strategies using AI/ML techniques. The pipeline will incorporate: GDFL 1-minute OHLCV data. Level 2 order book data (market depth). Computed Greeks (Delta, Gamma, Theta, Vega, etc.). AI/ML models for generating trading signals and evaluating performance. Scope: Acquire, clean, and store the relevant data. Calculate and integrate Greeks for each option contract. Engineer features from OHLCV, Level 2 order book, and Greeks. Develop AI/ML models for predictive signals or strategy optimization. Backtest and analyze strategy performance. Provide documentation, deliverable code, and a final report. 2. Key Deliverables Data Management & Integration Scripts/Processes to fetch and organize G...

I'm looking for a talented app developer to create a social networking application for mobile and PC. This app should be available on iOS, Android, and Windows PC. Key features of the app will include: - User-Generated Content (UGC): Users should be able to create and share their own content within the platform. Ideal skills and experience for the job include: - Proficient in cross-platform app development, preferably using tools like Flutter or React Native. - Previous experience in developing social networking apps. - Strong understanding of implementing UGC features in a user-friendly manner. - Knowledge of iOS, Android, and Windows PC development. I'm eager to see your proposals for this exciting project!

... Bidding ends in 6 days, 23 hours Your work is to write an algorithm that plays the game of Hangman through API server. When a user plays Hangman, the server first selects a secret word at random from a list. The server then returns a row of underscores (space separated)—one for each letter in the secret word—and asks the user to guess a letter. If the user guesses a letter that is in the word, the word is redisplayed with all instances of that letter shown in the correct positions, along with any letters correctly guessed on previous turns. If the letter does not appear in the word, the user is charged with an incorrect guess. The user keeps guessing lette...

...seeking a high-level Deep Learning Engineer to help classify CIFAR100 images. The ultimate goal is a strong position on the Kaggle leaderboard. Key project requirements: - Model Optimization: The model should prioritize achieving the highest accuracy while minimizing parameters and FLOPs. This requires a deep understanding of model complexity and performance trade-offs. - Advanced Data Augmentation Techniques: The use of advanced data augmentation techniques is crucial. Specifically, I want to utilize methods like Cutout or Mixup to enhance the model's robustness and generalization capabilities. - Convolutional Neural Network (CNN): The model should be based on a Convolutional Neural Network (CNN). Therefore, de...

I'm seeking a skilled developer to create a robust affiliate marketing platform. The primary focus of this platform will be on tracking and reporting. Key Requirements: - Experience in building tracking systems is a must - Knowledge in creating comprehensive reporting tools for pin api - Understanding of affiliate marketing dynamics The platform will mainly cater to affiliate marketers, so understanding their needs and behaviors will be a significant advantage. Please include examples of similar projects you have completed in your proposal.

...React and other modern frontend technologies to work on an exciting 45-day project. The goal is to build a polished, interactive dashboard based on a Figma high-fidelity design. About the Project: The project involves creating a high-quality dashboard that is visually appealing, responsive, and user-friendly. We’ll share a sample of the Figma design to give you a clear idea of what we’re aiming for. Your expertise will be critical in translating this design into a functional product. Responsibilities: Implementing the dashboard UI based on Figma designs. Writing clean, scalable, and reusable code. Ensuring the dashboard is responsive and performs well across devices. Collaborating with the...

I'm seeking a developer to create a virtual therapy website focused on emotional regulation. The primary feature of this platform will be self-guided exercises, specifically meditation techniques delivered through audio guides. Key Features: - Self-Guided Exercises: Users should be able to navigate through various self-paced, therapeutic exercises independently. - Meditation Techniques: The platform will primarily offer meditation techniques. These should be designed to aid emotional regulation and presented in an engaging, user-friendly manner. - Audio Guides: All meditation techniques will be delivered as audio guides. These should be high-quality, soothing, and professionally produced. The ideal candidate for this project should have experience ...

I'm looking to develop a social networking mobile application (Like Bla Bla Car app) for both iOS and Android platforms. The app will primarily focus on user interaction through messaging and maintaining individual user profiles. Key Features: - Messaging: Users should be able to send and receive messages within the app. - User Profiles: Each user will have a unique profile that can be customized. Ideal Skills: - Extensive experience in mobile app development, particularly for social networking platforms. - Proficiency in cross-platform development for iOS and Android. - Strong understanding of implementing user interface and user experience design for social interaction. Please share your portfolio of similar projects when bidding.

I'm an advanced Facebook Ads user seeking a 2-hour intensive session focused exclusively on audience targeting and segmentation for conversion campaigns. Fix Budget 1200Rs Key Learning Objectives: - Ad setup, Pixel Setup, Conversion Tracking etc... - Understand the intricacies of audience targeting and segmentation - Learn advanced techniques for conversion campaign targeting - Enhance skills in creating high-performing, targeted ads Ideal Candidate: - Proven expertise in Facebook Ads, particularly in audience targeting - Experience in teaching or training advanced users - Deep understanding of conversion campaigns - Ability to deliver concise, focused, high-impact sessions

after the market opening of the day or week or month , indicator will identify the setup candle in a smaller time frame based on my spec and draw horizontal lines on HL that will stay for the rest of the day, week, month.

Our online school is looking for qualified teachers to teach English, Math, and Science to our Chinese students. ( Students' ages between 3 to 16 years old ) Key Requirements: - Subject-specific degree in English, Math, or Science - Passionate about teaching entry-level students - Willingness to cooperate with our school - Previous experience with Asian students is a plus Ideal Skills: - Strong communication skills in English - Understanding of teaching at entry-level - Ability to make learning engaging and enjoyable

As a Professional Nurse Recruiting Agency (PNRA), we're seeking a proficient WordPress developer to build a recruitment website tailored for international nurses and U.S.-based healthcare organizations. Key Features to Implement: - A responsive website featuring a job board - Professional-grade pages including Home, About Us, For Nurses, For Institutions, and Contact Us - Integration of application forms and job search filters - Mobile responsiveness and SEO optimization Budget: $400 (negotiable) Timeline: 2 weeks or less Please include in your bid: - Relevant samples from your portfolio - Your proposed approach to this project - Your estimated completion time

...React developer to help me build a cross-platform (iOS and Android) social networking mobile app. This project is ideal for a freelancer with a strong background in React and mobile app development, particularly in creating interactive, user-centric apps. The coding is already done. I need someone who knows React So I can get this to test flight. Key Features: - User Profiles: The app will need to allow users to create and manage their own profiles. - Messaging System: An integrated messaging system for user interaction is essential. - News Feed: A dynamic news feed to keep users updated and engaged. - Calendar: A built-in calendar functionality for scheduling and event tracking. The ideal candidate will have experience with: - Buildi...

More details: You must have detailed and specific experience with GoHighLevel CRM customisations / calendars / a...profiles. Go High Level CRM calendar customisations. For my users to be able to make appointments for a customer from within a customer profile, populating the appointment with data inside the profile, sending notifications to multiple parties and having the customer be able to upload documents back on the confirmation email. What notification methods do you prefer for multiple parties? Email and SMS Which data fields from the customer profile should be included in the appointment details? Customer name and contact details, Preferences and special requirements, Questionnaire info How should the customer upload docume...

I'm looking for a professional web developer experienced with GoDaddy's web builder, to create an online form for my website. The form's primary purpose is for collecting signatures and billing information. Key requirements for the form: - Digital Signature Capture: The form should enable users to draw their signature using a mouse or touch screen. - User-friendly: The form should be easy to navigate and fill out. Experience with GoDaddy web builder is crucial, and knowledge of implementing digital signature capture functionality is a significant plus. Please provide examples of similar projects you've completed in your bid.

I'm looking for a skilled app developer who can create an app...looking for a skilled app developer who can create an application that duplicates the essential functions of the Auto Reply Pro App. This app should be compatible with both iOS and Android platforms. Key Features: - Auto-reply to messages: The app should automatically respond to incoming messages. - Customizable reply templates: Users should be able to tailor their response templates. - Message scheduling: The app should allow users to schedule their messages. Ideal Skills: - Cross-platform app development - Experience with messaging apps - Knowledge of iOS and Android guidelines Please note that I have no specific preference for a programming language or framework, so feel free to u...

...application to be installed on each PC. The application should report the PC's online/offline status to a central server. Minimal resource consumption. Web-Based Interface: A secure login system with user ID and password for access. Displays the online/offline status of all connected PCs in real-time. Sends an email notification to a designated email address if any PC goes offline. Scalable design to handle up to 100+ PCs as the network grows. Server Functionality: Collects status reports from the monitoring software. Serves data to the web-based interface. Scalability and Reliability: Designed to handle up to 100+ PCs and possibly more in the future. Ensure reliability and minimal downtime. Security: Encrypted comm...

Project Description: We are seeking a professional mobile app developer (or development team) to create a mobile application called MCE. This app will cater to the MCE Muslim community and serve as a platform for religious and community activities. The app must include the following features and meet specific technical requirements to ensure smooth functionality, scalability, and ease of use. Key Objectives 1. Facilitate access to accurate prayer times for Malaysia. 2. Serve as a platform for organizational updates and management. 3. Notify users about programs and announcements. 4. Provide live and recorded lectures for spiritual learning. 5. Enable users to engage in religious Q&A with scholars. 6. Build a stronger MCE Muslim community throu...

We will look for a website that allows the selection of an actor / performer and then we will build a design for the bottle for that matches the performer More details: Is this project for business or personal use? For starting a new enterprise What information should successful freelancers include in their application? Past work How soon do you need your project completed? ASAP

I am seeking an expert in battery modeling and parameter identification to improve the real-time performance of state of charge (SOC) estimation for Lithium-ion batteries. The project's primary aim is to enhance the accuracy of SOC estimation through refining the parameter identification accuracy within a second-order equivalent circuit model. Key Requirements: - Utilize Kalman filter-based methods for parameter identification. - Significant improvement in the accuracy of SOC estimation. - Experience with lithium-ion battery modeling and simulation. - Ability to deliver high-quality work under tight deadlines. Your expertise in this area is crucial for the project's success. A strong background in battery technology and re...