Learning r programming for beginners jobs
I am seeking an expert in CUDA and cryptography, specifically focusing on implementing the ECC (Elliptic Curve Cryptography) algorithm for encryption and decryption tasks. Key Project Components: - Implementing ECC for encryption/decryption. - Utilizing hashing for creating digital signatures. The ideal candidate should have profound knowledge and experience in: - CUDA programming - Cryptography, particularly ECC. - Digital signature generation and verification. Please provide examples of previous projects related to CUDA and cryptography when you bid.
"I am Sumudu Harshana, a versat...also skilled in script writing and article writing, blending technical knowledge with creative communication to craft compelling content for diverse audiences. Whether it’s developing detailed technical documentation or engaging written pieces, I have the ability to convey ideas effectively and professionally. I am committed to continuous self-improvement, focusing on enhancing my English proficiency and expanding my knowledge in areas like astronomy. Beyond my professional interests, I find inspiration in Indian music bands and artists like Chitral Somapala, which enriches my creativity and perspective. With a diverse skill set, a passion for learning, and a dedication to excellence, I strive to make meaningful contributi...
...Weather Updates: Users can view weather forecasts for any destination using the Weather API. 4. Event Discovery: Display a list of travel-related events, such as festivals or concerts, using the Ticket Master API. 5. Google Maps Integration: Users can view the map of selected destinations and get directions from their current location to the destination. 6. CRUD Operations: Users can save and manage their favorite destinations and events (Create, Read, Update, Delete) using Firebase Firestore for persistent storage. 7. Menu: A navigation menu for easy access to different sections of the app (e.g., Home, Weather, Events, Favorites). 8. Search Functionality: Users can search for specific destinations or events by name or category. Extra/Self-Learning T...
... Key Requirements: - Implement connection through a static residential proxy provided by proxyscrape. - Each cloned Docker image must set up with individual proxy account credentials. Deliverables: - A step-by-step tutorial to deploy the Docker image using Portainer. - The modification of the Docker image to facilitate easy scaling of mining Grass by duplicating and deploying the Docker image. Ideal Skills and Experience: - Proficiency in Docker and Linux server deployment. - Experience with proxy services and implementing them in Docker images. - Ability to write clear and concise technical tutorials. ROAD MAP View the doability? Ask questions if something is unclear ! Re-compose the given image at We give you the credentials for login at getgrass
I'm looking for a talented Full-Stack Developer for a part-time job in the Programming and Tech field. Key Responsibilities: - Engaging in diverse projects that challenge and enhance your skills. - Contributing to both front-end and back-end development tasks. Ideal Skills: - Proficiency in both front-end and back-end technologies. - Experience with various programming languages and development tools. - Strong problem-solving skills and a knack for coding. If you're passionate about programming and tech, and you're looking for a flexible part-time role that allows you to earn money while doing what you love, I would love to hear from you.
I'm in need of a skilled programmer to create a copy trading bot tailored for the cryptocurrency market. The bot should be compatible with Raydium, , and on-chain trading. Key functionalities to do: - Every millisecond counts - the bot has to be fast, which means the code has to be well-thought-out - Create a bot that track solana node and send copy tx by gRPC - Filters for copy trading like min. mcap, liquidity, burned LP etc. Ideal Candidates: - Strong programming skills, particularly in Rust - Experience with cryptocurrency trading bots - Knowledge of solana blockchain
Job Title: Python Developer for Raspberry Pi and MLX90640 Thermal Camera Integration Description: I am seeking a skilled Python developer with experience in Raspberry Pi, I2C communication, and MLX90640 thermal camera modules. This project involves developing a Python library to enable the continuous and parallel operation of four thermal cameras, capturing data at a minimum frequency of 8Hz per camera, without the use of a multiplexer. Key Requirements: 1. Python Library Development: - Create a custom Python library for MLX90640 thermal camera modules. - Enable continuous data capture for all pixels (24x32 resolution) for four cameras, saving the data into CSV files. 2. Communication Setup: - Establish custom I2C buses for each ...
...carrier board available with a public license, for exampe CMIO from raspberry pi. Description of the elements, interfaces and other requirements follows • Maximum board size 100mmx200mm aprox. • Power souce 12v, protected and converted to other DC (present in CMIO) • USB-C with mini USB conector for programming (present in CMIO) • USB 3.0 (present in CMIO) • Ethernet (present in CMIO) • CANBUS • PCIe (present in CMIO) • SD card slot (present in CMIO) • eDP video signal + backlight • AIS class B (from other open-source) • Other UART inputs with optocouplers (to be decided) • GPS • GPIO ports accesss via male connector (compatible with Raspberri Pi) These are the main requeriments, maybe other minor wi...
I need an experienced programmer to help me automate reviews from Aliexpress and display them on my website and TikTok shop. About 3000 products on the Shopify store require reviews imported from aliexpress, and 1826 live products on the TikTok shop req...Aliexpress and display them on my website and TikTok shop. About 3000 products on the Shopify store require reviews imported from aliexpress, and 1826 live products on the TikTok shop require reviews imported from the Shopify store. Key Requirements: - Automatically sourcing reviews from Aliexpress and Shopify - Displaying the reviews on my website and TikTok shop Ideal Skills: - Proficiency in programming and automation tools - Experience with web development - Familiarity with TikTok shop and e-commerce platforms The bud...
This assignment is a programming assignment wherein you have to build a multiple linear regression model for the prediction of demand for shared bikes. You will need to submit a Jupyter notebook for the same. Problem Statement A bike-sharing system is a service in which bikes are made available for shared use to individuals on a short term basis for a price or free. Many bike share systems allow people to borrow a bike from a "dock" which is usually computer-controlled wherein the user enters the payment information, and the system unlocks it. This bike can then be returned to another dock belonging to the same system. A US bike-sharing provider BoomBikes has recently suffered considerable dips in their revenues due to the ongoing ...
Title: Expert Consultant for Wearable Device Development: Prototype to Production Guidance Description: We are developing an AI-powered wearable medical alert system focused on health monitoring, early anomaly detection, and real-time data transmission. Our prototype integrates advanced sensors and hardware for accurate health insights and seamless performance. Key Components in Use: Sensors: MAX86174A (heart rate, SpOâ‚‚), LSM6DSLTR (6-axis accelerometer and gyroscope) Controller: ESP32-S3, MAX32664 We are looking for an experienced wearable tech consultant who can: Provide strategic guidance on transitioning from prototype to production. Optimize hardware-software integration for reliable and accurate data output. Ensure sensor calibration for accura...
I'm in need of a Java program that can crawl specific websites and extract text content. The program will be required to crawl between 1 to 5 specified sites. Ideal Skills: - Proficient in Java programming - Experience in web crawling - Familiarity with data extraction techniques - Able to handle and process text content efficiently - Knowledge of best practices for web crawling to avoid overloading the server or violating rules. Please note that the primary task of this program is to collect text content from these websites.
...interface with user logins - Payment processing capabilities for licensing - An Admin dashboard - User analytics features - Integration of some AI elements, specifically natural language processing The platform should also have a user database where project details can be stored, allowing users to handle multiple projects and modify existing ones. Ideal skills for this project include: - Proficiency in web development - Experience with legacy system integration - Knowledge of AI, particularly natural language processing - Familiarity with building user databases As for the choice of programming language or framework for the front-end, I haven't made a decision yet. I'm open to suggestions based on what you think would work best for...
I'm looking for a Siemens PLC Programmer to work on modifying the PLC program of existings CNC machines with Siemens Controler (828D). Milling and Lathe. We have the PLC programe on hand. Tasks: - Adjusting the PLC for security logic - Adding automated troubleshooting functionality Skills and experience required: - Extensive knowledge of Siemens PLCs - Experience with CNC Controler PLC programming - Strong background in manufacturing automation - Expertise in integrating automated troubleshooting systems
I'm seeking a professional for comprehensive data labeling tasks involving both images and text. The primary goal of this project is to prepare this labeled data for training a machine learning model. Key Responsibilities: - Labeling both image and text data - Classifying images into various categories Ideal Skills: - Extensive experience in data labeling - Proficiency in image classification - Knowledge and understanding of machine learning model training This task is crucial for the development of a robust machine learning model. Your attention to detail and understanding of the labeling requirements will be key to the project's success.
Developer Needed for Migration and Setup of Webflow Platform Hosting E-Learning, Info products & Educational Subscriptions HEADS UP: WE NEED THIS DONE WITHIN 2 WEEKS! Dont apply otherwise. We are seeking an experienced developer/designer with expertise in Webflow to help us migrate and expand our current website. We aim to transition from LearnWorlds to Webflow, hosting two primary projects: X-Commerce – A single-purchase e-commerce course on starting and scaling online businesses. See current website: X-World – A subscription-based educational platform offering various digital skillset courses, including add-on purchases. The project involves: Migrating all current courses, customer data, and e-commerce functionality from LearnWorlds. Designing a unifie...
I need a skilled Python programmer to help me automate the order placement on Interactive Brokers. Key Requirements: - Automate the placement of Market orders, Limit orders, and Stop orders - Strong proficiency in Python - Experience with Interactive Brokers platform - Knowledge about different types of trading orders Ideal Skills: - Python programming - Trading experience - Interactive Brokers expertise - Order placement automation I am looking to hire a pythan trading expert, You need to automate trade in Shoonya Broker Account, Automate the buy sell order, It has lots requirment I have attached excel file to fetch and update data, and automate trade, I can choose any interval, It need to fech candle data, more detaiil i wll give if you can provide result with my budget, N...
I'm looking for a skilled software developer from the U.S. to work on an undetermined software project. The specifics of the software, its primary purpose, and compatible platforms have not been finalized yet. Therefore, flexibility and adaptability are crucial for this role. Ideal Skills: - Proficient in multiple programming languages - Experience in developing various types of software (web, mobile, desktop) - Strong problem-solving skills - Excellent communication skills Please note, the project has no specific deadline yet, but timely delivery and quality of work will be key considerations for continued collaboration.
I'm looking for a proficient Python programmer with experience in data analysis and GUI development. The task will primarily involve working with real world data and developing a user-friendly interface for the application. Skills and experience: - Proficient in Python programming - Experienced in data analysis - Skilled in GUI development - Prior work with real-world data
I'm seeking a professional resume writer with expertise in crafting ATS-compliant resumes for technical positions. Key Requirements: - Create a chronological resume targeting technical roles specifically. - Highlight my skills in programming languages, software tools, and methodologies prominently. - Ensure the resume scores 100% in ATS tests. Ideal Skills and Experience: - Proven experience in resume writing for IT and Engineering roles. - In-depth understanding of ATS algorithms and requirements. - Strong knowledge of technical skills and tools in the current job market.
I'm looking for an Arabic font developer to create a unique digital font dedicated to an Arabic curriculum for the first year of primary kids. To clarify, Arabic children's books use fonts that are best for expert adult readers. For a literacy project, we want to develop 2-3 fonts that speed up reading for beginners. We are looking for a skilled font designer who can use font development software to develop some fonts that are: 1- simple in form, without serifs, and have normal, thick, and bold forms (Italic is not needed). 2- well-spaced and has good proportions between tall and short letters in linear Arabic. 3- consider the spacing between the letters and the different vowels (harakat) that come above or under the letters of...
I'm looking for a .NET professional who can help me develop a WebSocket connection for CoinSwitch. The main purpose of this connection is to receive real-time price updates for multiple cryptocurrencies. Reference code is as below. Specific Requirements: - The WebSocket code should efficiently handle updates from various cryptocurrencies. - It should primarily focus on capturing price changes. Ideal Skills: - Proficiency in .NET programming language. - Prior experience with WebSocket connections. - Familiarity with cryptocurrency data and CoinSwitch platform is a plus. Please note that the primary goal is to receive real-time price updates. Your expertise in handling this task will be crucial for the success of this project
I'm seeking a skilled WordPress developer to create a website for delivering online courses. The site should be user-friendly, visually appealing, and equipped with the necessary features for a seamless learning experience. Ideal skills and experience: - Proficiency in WordPress - Experience in developing educational or e-learning websites - Understanding of UX/UI principles - Ability to implement course delivery features
building a wp website in arabic ( rtl ) for a client who will teach live courses and upload pre-recorded video courses. We need to ensure the following: 1)Prevent Recording and Tracking: If someone attempts to record the videos, the user's email or username should appear as a watermark on the video. This way, if the video is recorded and shared, the owner can identify who recorded and distributed it. 2)Restrict Downloads: The videos must not be downloadable under any circumstances. 3)Device Restriction: The client wants students to log in and access the platform from only one device at a time. For these specific needs, Uscreen, Vimeo OTT, or a custom WordPress+LearnDash solution would be the most suitable options: Uscreen: Best for a turnkey solution with st...
I'm looking for an expert to program an ISOBUS ECU for automated implement steering. The ECU should also allow for remote monitoring and control. Key Requirements: - Programming the ECU in Codesys - Implementing functionalities for automated steering and remote control - Ensuring compatibility with Serial GPS ability to work with any isobus display Ideal Skills: - Proficiency in Codesys - Previous experience with ISOBUS ECU programming - Knowledge of integrating with Serial GPS systems - Skills in designing for remote monitoring and control
I'm looking for a skilled book designer to help me create a modern and clean textbook. The project involves: - Cover design: I want a cover that captures the essence of the content while adhering to a sleek, modern aesthetic. - Page layout: Each page should be laid out in a way that's not only visually appealing, but also conducive to learning. - Illustrations: The textbook will need some illustrations to help convey complex ideas. These should be in line with the modern and clean style of the book. Ideal candidates for this project should have experience designing textbooks or similar educational material, and be able to provide a portfolio of relevant work. Strong skills in graphic design and familiarity with creating illustrations are essential. Please a...
I'm looking for a lively and engaging children's song to help my KG one students learn the alphabet. The song should be upbeat and lively, appealing to young children and making learning fun. I want this song to be specific within certain alphabets and the alphabets are the letter a for Apple ex anchor alligator arrow and aunt. S for socks sun snake star swim and school The H for head horse hat, heart helicopter, and hand The L for lake lion lamp, lemon laptop and leg. The letter T for train tiger tooth turtle and the number two. The N49 nose nest nut and nail. The M for mask man money monkey mountain and mouth. The letter D for desk doll duck dress dog and door. The letter R for red robot rocket rainbow...
I'm seeking a seasoned professional in the field of Reinforcement Learning (RL). The project primarily revolves around the application of RL techniques to solve complex problems. Although the specific objective and application domain have yet to be determined, the ideal candidate will have the ability to propose and implement innovative solutions across a variety of fields. Key Skills and Experience Required: - Deep understanding and practical experience with Reinforcement Learning - Ability to create and implement complex RL models - Experience with Python and RL libraries (e.g., TensorFlow, PyTorch, OpenAI Gym) - Strong problem-solving skills and creativity - Excellent communication skills for explaining complex concepts
We are looking for an experienced Unity Developer with expertise in 3D development and C# programming for a 6-month fixed contract. The developer will work closely with our team to create engaging, high-quality 3D experiences. This role is ideal for someone who thrives in a fast-paced environment and enjoys working on challenging projects. Key Responsibilities: - Designing and implementing game mechanics - 3D modeling - Optimizing the game for PC and Mobile platforms - Creating and implementing character animations - Designing and coding AI behavior for NPCs - Implementing realistic physics and collision detection - Implementing multiplayer functionality and networking - Creating user interfaces and ensuring a seamless user experience Ideal Skill...
Job Title: Freelance Flutter Developer Needed for Mobile App Development Project Job Description: We are looking for an experienced freelance Flutter developer to help us build a feature-rich and user-friendly mobile application. The ideal candidate will have a strong background in Flutter development, excellent problem-solving skills, and the ability to deliver high-quality work within the project timeline. Project Overview: Platform: Flutter (iOS and Android) Scope: App development (implementation, testing, and deployment) Category: [E-commerce.] Estimated Duration: [120 hrs] Budget: Request Quote Responsibilities: Design and implement an intuitive, responsive, and visually appealing user interface. Write clean, maintainable, and well-documented Flutter ...
I'm looking for a Java programmer to develop a sports equipment inventory system. The software should be able to: - Add new items to the inventory - Display all items in the inventory - Search for items by name - Exit the program The inventory will manage sports equipment across multiple categories, and it will need to track the quantity of each item. Ideal skills for this job include: - Proficiency in Java programming - Experience with inventory management systems - Understanding of software development best practices - Ability to create user-friendly interfaces.
I'm looking for an experienced Python developer who can create Code Interpreter SFT tasks. These tasks will help in fine-tuning a language model for resolving practical problems through the execution of Python code. Key Responsibilities: - Design tasks based on real-world problems that necessitate Python code execution. - Ensure tasks include generating, executing, and interpreting the results of Python code. - Adhere to guidelines which include: - Dependency on code execution for task completion. - Incorporation of dynamic problem-solving elements. - Providing clear reasoning and intermediate feedback during task iterations. Deliverables: - A set of Code Interpreter SFT tasks, complete with all necessary metadata and annotations. - Each task should consi...
I have a ready indicator in TradingView that needs some tweaking. The main goals are to improve its performance, add trend indicators as signals, and modify its visualization style to a different chart type. Requirements: - Modify the existing indicator for better performance. - Incorporate trend indicators into the indicator's signal outputs. - Change the visualization of the indicator to a different chart type. Ideal Skills: - Proficient in Pine Script (the programming language used in TradingView). - Experience in modifying TradingView indicators. - Keen understanding of trend indicators and their application in trading. - Ability to change and customize visualization styles in TradingView.
I'm in need of a skilled programmer to develop a cross-platform (Android and iOS) business application focused on customer manag...a cross-platform (Android and iOS) business application focused on customer management. Key Requirements: - Development of a user-friendly interface for managing customer data. - Integration of features for tracking customer interactions, sales, and support requests. - Ensuring the app is compatible and performs optimally on both Android and iOS platforms. Ideal Skills and Experience: - Proven experience in developing cross-platform applications, particularly business-oriented ones. - Strong skills in customer management systems development. - Proficiency in Android and iOS programming languages. - Knowledge of UI/UX design principl...
...Remote (with a focus on Costa del Sol and Costa Blanca) Company: Propli – Spain's Most Advanced MLS for Real Estate Agents About Us: Propli is revolutionizing the real estate industry in Spain, providing agents with cutting-edge tools to streamline their business. With a strong presence in the Costa del Sol and Costa Blanca regions, we pride ourselves on offering a robust MLS platform and a vast portfolio of developments. Role Overview: We’re seeking a Real Estate Support Specialist with in-depth real estate experience. This position is integral to our mission of providing unparalleled customer support and expanding our portfolio of developments. Responsibilities: • Provide expert-level support for the Propli MLS platform to real estate agents. &b...
I need a skilled Python programmer to help me automate the order placement on Interactive Brokers. Key Requirements: - Automate the placement of Market orders, Limit orders, and Stop orders - Strong proficiency in Python - Experience with Interactive Brokers platform - Knowledge about different types of trading orders Ideal Skills: - Python programming - Trading experience - Interactive Brokers expertise - Order placement automation I am looking to hire a pythan trading expert, You need to automate trade in Shoonya Broker Account, Automate the buy sell order, It has lots requirment I have attached excel file to fetch and update data, and automate trade, I can choose any interval, It need to fech candle data, more detaiil i wll give if you can provide result with my budget, N...
I have a 30 GB .DAT file containing binary data that needs to be processed and classified using a Convolutional Neural Network (CNN). The output from the model should be classification labels. Ideal candidates for this project should have: - Proficient experience in machine learning, specifically with CNNs - Ability to handle and process large datasets - Familiarity with .DAT and binary data - Skills in data preprocessing and feature extraction - Experience in delivering classification labels from a trained model Your expertise in these areas will be key to the successful completion of this project.
...following options on the Copytrading tab/section: o Tag for the specific wallet which is copied. o Target Wallet Adress o Buy Percentage (of the initial wallet) o Max Buy: for example, 0.5 sol o Minimum Buy: for example, 0.4 sol o Total Investment for the copied wallet: for example, 1 sol o Each token buy times: for example, 1 o Buy times reset after sell: true/false o Traders’ transaction maximum limit o Copy Pump: True/false o Copy Raydium: True/false o Minimum Market Cap o Maximum Market Cap o Minimum Coin Age o Copy Sells: True/false o Sell by position ratio: True/false o Auto Retry buy or sell: for example 1 time. o Buy gas fee: for example, 0.001 sol o Sell gas fee: for example, 0.001 sol o Buy tip: for ex...
I'm in need of a Learning Experience Designer to help create learning experience (online & offline) aimed at youth aged 20-28. The learning experience will focus on developing soft and creative skills. Key Aspects: - Design engaging, interactive workshops & activities that enhance knowledge and facilitate skill development. - Prior experience in creating youth-oriented learning activities is a plus. - Proficiency in designing for soft and creative skills is highly sought after. - Understanding of the unique needs and preferences of the 20-28 age group will be beneficial. Your role will be pivotal in helping our target learners acquire these essential skills in an enjoyable and effective manner.
I'm seeking assistance from an experienced backend developer, specifically well-versed in Node.js, to help me proxy for interviews. Ideal person should have knowledge Programming Languages: Node.js, Python Cloud Platforms: Amazon Web Services (AWS), Microsoft Azure Message Queues: Kafka, RabbitMQ Databases: MongoDB, Redis Frameworks & Tools: , Kubenetes, Grafana, Postman Version Control: Git Monitoring & Automation: Grafana, cloud infrastructure monitoring
I need an experienced python programmer to create a backtesting script for automated trading on the Dhan platform. The strategy is based on the first 5-minute candle's high and low, where options (CE or PE) are bought upon breaking these levels. Key Requirements: - The stop loss (SL) will be 50% of the first candle, and the target will be 200%. - Orders will be placed on weekly options, using at-the-money strikes, one strike in-the-money. - The script needs to set lot size and money for each trade. - A new trade should only occur after the previous trade hits either the target or SL. - Once the target is hit, no further trades should be made in that direction; only in the opposite direction. - After a stop loss is hit, re-entry is allowed in any direction. - If any trad...
...Alveo U50 platform) to provide consultation for our project. We are specifically interested in establishing basic network connectivity and sending IP packets over the U50's QSFP port to a 10GbE SFP+ router. Required Skills: Strong understanding of FPGA design principles and methodologies. Hands-on experience with AMD Alveo U50 and its networking capabilities. Familiarity with Ethernet MAC IP cores to use on Alveo U50 Knowledge of XRT, Xilinx Vivado Design Suite and Vitis development environment. Experience with network programming and protocols (SFP+, QSFP, Ethernet, TCP/IP). Excellent communication and problem-solving skills. Project Scope: Consult on the selection and configuration of appropriate Ethernet MAC IP cores for 10GbE c...
Hi Muhammad Rehan R., I noticed your profile and would like to offer you my project. We can discuss any details over chat.
...develop an automated entry submission system that integrates with a Telegram bot to post entries to a designated website. The system is designed to mimic human-like behavior by randomizing the entries, distributing the rates across multiple user accounts, and varying the number of submissions at any given time. The bot will generate permutations for entries (e.g., 0001r) and apply fixed values for other entries (e.g., 0002 3-6), ensuring the total rate for each entry type remains within the specified range (e.g., 3-6). This process requires complex mathematical algorithms to handle the permutations, rate calculations, and dynamic adjustments to meet the desired parameters. The system will be capable of: Randomizing entries and posting intervals across multiple us...
...Frontend: HTML, CSS, JavaScript (ES6+), React.js, and associated libraries (e.g., Redux, ) Programming: C++, JavaScript (ECMAScript) I possess a strong work ethic, a keen eye for detail, and a passion for continuous learning. I'm eager to contribute my skills to challenging projects, collaborate effectively within teams, and deliver high-quality solutions that exceed client expectations. I'm actively seeking opportunities where I can: Utilize my technical expertise to build innovative and user-friendly web applications. Contribute to the growth and success of a dynamic organization. Continuously learn and expand my skillset in the ever-evolving field of web development. Key takeaways for freelancing platforms: Keywords: MERN stack, Node.js...
I'm looking for a creative professional to design a series of educational posters aimed at middle school students. The posters will primarily focus on delivering subject-specific knowledge in an engaging and visually appealing way. Ideal Skills: - Graphic design - Understanding of middle school curriculum - Ability to create visually appealing and educational content The goal is to enhance the learning experience and promote education in a fun and accessible way. Please provide examples of similar work if available.
I'm looking for a dual-skilled professional who is an expert in TikTok ads and a capable back-end programmer for my E-commerce website. TikTok Ads Responsibilities: - Monitor ad performance and provide comprehensive reports - Adjust strategies based on performance metrics to optimize ad reach and engagement E-commerce Back-end Programmer Responsibilities: - Oversee and manage the database ensuring smooth operation and data integrity - Perform regular server maintenance to ensure optimal performance - Handle API integrations necessary for the functionality of the site Ideal Skills: - Proficiency in TikTok ad performance tracking and reporting - Extensive experience with back-end programming, particularly for E-commerce sites - Skills in database ma...