Node.js vs python django jobs

I'm looking for a freelancer who's great at web scraping to help with a project involving a specific website initially, with potential for more. I'll give you the specific data fields to extract. It'd be great if you: Are really good at web scraping and or Python. Know your way around MS SQL Server databases, not essential but definately an advantage. Understand how to extract data effectively. Understand the need for security and captcha integration if needed. Can work quickly since this project is a priority and needs to be done ASAP. Ultimately, I want to be able to manage the code with your ongoing help, so this could lead to a long-term partnership. I'll share the full details when needed. You will provide source code, documentation and deployment info...

i have script .js i want convert it to powershell .ps1

...platforms like AWS and Digital Ocean. - Design and deploy modern frontend user interfaces using the latest UI technologies. - Build secure and scalable mobile app REST APIs. - Manage databases using MySQL and NoSQL. - Use DevOps tools to monitor and scale applications. Looking For: - 3+ years of experience in software development - Experience with LAMP and MERN stacks - Knowledge of PHP, CSS, and JS and web technologies - Familiar with S3, cloud hosting, DNS, web security - Ability to use vanilla code and minimal libraries/frameworks - Can code fast and effective with simple Bootstrap and jQuery - Strong skills with MySQL and NoSQL (Firebase, MongoDB) - Good english communication skills in Slack and in meetings - Availability to work ~20hrs per week between 9AM-6PM PST - A passi...

I am looking for an AI trainer proficient in Python or java to assist me with my AI project. Key Requirements: - Proficiency in Python: You should be adept in using Python for AI projects. - Machine Learning and Deep Learning Skills: Ideally you will have a solid foundation in machine learning and deep learning concepts and their practical applications. - Communication Skills: A good trainer should be able to explain complex ideas in simple terms. I will require online and offline assistance, so you should be comfortable with both modes of training. The ideal candidate should be able to provide regular updates and feedback on my progress. I am eager to get started and would appreciate if you could commit some time to this project.

I'm looking for someone who can do automated selenium test (using python) for a wordpress plugin. You need to write the test cases and automate it.

I'm seeking a skilled Python developer with experience in algorithmic trading to create a bespoke algorithm specifically for the optimization of trading strategies in the crude oil market. Key Requirements: - The algorithm should be written in Python. - It should primarily focus on crude oil trading. - The primary objective of this project is to optimize trading strategies, not price forecasting or risk management. Ideal Skills and Experience: - Proficiency in Python for algorithmic development. - Previous experience in creating and optimizing trading algorithms. - Specific experience in crude oil trading is highly preferred. - A solid understanding of trading strategy optimization. The successful freelancer will be expected to not only create the algorithm but...

...primary function of the app is to place and manage trades based on predefined criteria. It should be able to execute trades automatically without the need for manual intervention. Ideal Candidate: I am seeking a developer with a background in finance and algorithmic trading who can bring the following skills and experience to the project: - Proficiency in Windows application development using Python or similar languages. - Experience with trading APIs, particularly in the context of order execution and management. - A solid understanding of trading strategies and the ability to translate these into functional code. - Knowledge of financial markets and trading dynamics. Please note that the specific API provider for the trading has not been settled yet, so flexibility in ada...

It is necessary finish a web application in python + django regard the statistic of stocks. So it is necessary: some fetaures of some filter; -. make some change to mysql database and api to datafeed. -. verify the formulas and add some features; -. make better the design. - create an admin page with security login and import stocks manually. Please answer only if you can show similar experiences

I am looking for an expert in Python programming to assist me in the creation of a multi-timeframe indicator merge. The project entails the merger of the 4hr, 1hr, 15min, and 5 min timeframes while including specific indicators, namely Moving Average, Relative Strength Index (RSI), ADX, and Webslingers. To make informed bids, it's important to note the following: Ideal Skills & Experience: - Extensive knowledge in Python programming - Proven experience in financial analytics - Expertise in working with listed indicators Project Requirements: - Code the multiple timeframes using Python - Integrate the Moving Average, RSI, ADX, and Webslingers indicators - Generate the deliverable output as a CSV file Please feel free to inquire if you need more clarificatio...

I'm in need of an AI-based image editing solution that can replace skies and chromakey functions for our...perform color correction, chromakey, and sky replacement on images. - The tool should be able to process a large number of images with speed and accuracy, enhancing the visual appeal of our content. Compatibility: - The solution needs to be compatible with web platforms, ensuring seamless integration and operation within our existing systems. Ideal Skills and Experience: - Strong proficiency in Python programming, particularly in the development of AI solutions. - Previous experience in image processing and editing, with an emphasis on color correction and chromakey. - Familiarity with web-based applications and the ability to ensure compatibility across different browse...

...status—active when on, and inactive when off. Solutions utilizing 'keybd_event' and 'SendInput' do not meet the requirements of this project; a deeper, more intrinsic approach is necessary. Conditions: The keyboard emulator must function correctly within the game. The project must be compatible with Windows 10. Candidates should be proficient in at least one of the following programming languages: C++, Python, or Pascal. Payment will be made upon successful demonstration of the emulator working within the game. Note: This project does not involve breaking any game's security measures or installing unsigned drivers. Important Information: Macro usage in the game is permitted and is not considered illegal. Before bidding on the project, please con...

...desktop applications. The ideal candidate should also have a strong background in algo trading and low latency applications. Key Requirements: - Experience with C# and Visual Studio for .NET development. - Previous work on both web and desktop applications. - Proven experience with algo trading. - Prior experience working in low latency applications - React JS work experience is added advantage Skills: - Worked with Websocket, REST APIs - React JS - Ability to understand code written by others and refactor. - Write clean, robust and performant code. Your role will involve: - Building and maintaining robust, high performance applications. - Using your knowledge of algo trading to implement and optimize trading algorithms. I'm on a tight timeline and need this compl...

I'm looking for an experienced Python coder to tackle two key aspects of my project - data analysis and automation. Here's a breakdown of the requirements: - **Data Analysis**: The primary task involves analyzing datasets in CSV format. The selected candidate should be adept with NumPy, able to make sense of the data and derive meaningful insights. - **Automation**: The second crucial aspect is automation. I'm looking to automate certain processes in my project that involve database queries. Proficiency in Django will be necessary here. Ideal candidates for this project would have: - **Strong Python Skills**: You should be well-versed with working on data analysis and automation tasks using Python. - **Experience with NumPy & Django...

...Key Skills & Experience: - Strong proficiency in C++ - Extensive experience with the QT framework - Excellent User Interface (UI) design skills - Knowledge in Python and 3D will be a plus The main function: 1: Windows platform, jointly developed by QT+python. 2: Communicate with hardware devices through serial port/Ethernet. 3: Support MODBUS-485, TCP, UDP and other communication protocols, with 1ms cycle response. 4: Support hardware parameter configuration, multi-channel data analysis, storage, data playback, and support real-time data curves at different communication rates. 5: Supports local and cloud dual storage. 6: Port a Python data analysis open source library (provided by us), which needs to display the analyzed data in the form of a 3D model. The m...

I am in need of a skilled Full Stack Python Developer to primarily focus on back-end development tasks. The main areas of focus include: - User Authentication & Authorization: Implement a secure user authentication system to ensure data integrity and user privacy. - API Development & Integration: Develop new APIs and integrate with existing ones, for seamless communication between various components of the platform. - Data Processing & Analytics: Implement robust data processing and analytics functionalities to make informed decisions and gain insights from user interactions and other data sources. You will also be responsible for: - Payment Gateway Integration: Integrate payment gateways to facilitate transactions within the platform. - Social Media Integration: Imple...

I have a Vue 3 application that uses Quasar. The application is basically a blog with a few routes and simple pages. It uses backend API to fetch the data for articles. I want to deploy this app ideally to Vercel or Netlify. For SE...rendered HTML and the API call is not necessary on the client. On the client, the app should hydrate so that it becomes interactive. The app is already working and when it is deployed without SSR, it works correctly. So you don't need to develop the app. You will need to configure the SSR in the project, configure the deployment location (Vercel or Netlify), and potentially adjust the existing JS code so that it works correctly in SSR environment (maybe this isn't even necessary, but if it is, it shouldn't be hard, there is only around ...

I'm seeking a skilled developer proficient in Python to build an advanced trading bot. The bot should be compatible with TradingView and capable of the following: - Generating buy and sell signals based on specified trading strategies - Implementing stop loss and take profit orders for risk management - Adapting to customizable trading strategies - Actually executing trades and proving profitable over time The ideal candidate should have: - Profound understanding of trading principles and market dynamics - Solid experience in developing trading bots and implementing complex trading strategies - Proficiency in Python and experience in integrating with TradingView - A track record of building successful, profitable trading bots This project is a great opportunity for s...

Looking for a Python & Active Directory Expert to create a script and test data to capture all meta data linked to and which describes the confined parameters of an AD account, group policy etc. and export to a MS Excel File. More information attached.

...GUI interface, currently built on the MATLAB compiler, into a Python application. The source code for SPM12 is available at SPM12 GitHub repository Objectives: • Translate the entire SPM12 codebase from MATLAB to Python while maintaining functionality. • Develop a Python-based GUI that replicates the current MATLAB interface. • Ensure the converted application integrates well with Python scientific computing stacks. Key Deliverables: • A fully functional Python version of SPM12. • Source code with comments and documentation. • A user guide for the Python-based GUI. Skills Required: • Proficiency in MATLAB and Python programming languages. • Experience with GUI development in Pyth...

I'm looking for an experienced Django developer to work on the backend of my project. Key Project Goals: - The primary focus of this project is on backend development. You should have a strong understanding of Django and be able to handle complex backend tasks. Ideal Skills and Experience: - Extensive experience with Django is a must. - Strong understanding of backend development. - Ability to work on complex backend tasks. - Good communication skills. - Previous experience with similar projects is a plus. Please note that the project is already defined and the focus will be solely on backend tasks. Your role will be to improve the backend of the website. Feel free to ask any questions for more information.

...seeking a skilled Python developer who can help me with a critical task: Translating PDFs. The challenge here is to make sure that the translated content in the PDFs maintains the exact same format and layout as the original documents, without any alterations. Key Requirements: - Translate both scanned and text-based PDFs/images: I need a professional who can handle both types of documents with equal proficiency. - Language Proficiency: The translation will be from English to a variety of languages. Your ability to work with any language from a dropdown menu is crucial. - High Accuracy: The translated content must retain the original meaning and context with 95+% accuracy. Ideal Skills and Experience: - Proficient in Python: You should have extensive experience using ...

I have written a Python code to extract a table from an HTML file. I need an expert in Python, Pandas and BeautifulSoup4 to review and make minor adjustments as necessary. The purpose of the table extraction is for data analysis. The HTML file has multiple tables with some nested elements, not overly complex. Key Requirements: - Need an expert in Python programming - Familiarity with Pandas and Beautiful Soup - Experience in data analysis The job mainly involves reviewing the existing code, fixing any issues that may hinder the data extraction, and ensuring that the extracted table is ready for analysis. Please note that no additional data preprocessing is required, just fixing the current code. --- name "iXBRL" , inside folder contain multiple html file...

I'm looking to develop a Software as a Service (SaaS) website specif...Chatbot with capabilities for information retrieval and analysis. - An OCR (Optical Character Recognition) system. - Both Frontend and Backend development are necessary. - Seamless integration of the AI chatbot, OCR, and payment processing into the website. - A well-documented API to allow for future expansion. The ideal candidate for this project should be proficient in Python (Django/Flask), laravel, node js, vue js, AI programming, and API development. Experience with building SaaS platforms, payment processing integration, and chatbot development would be a great advantage. Accuracy, scalability, and security are top priorities for this project. Immediate availability and go...

I'm looking to create a personal branding profile resume that can be used for various purposes including job applications, and online professional networking. Key Requirements: - Transform my existing CV into a dynamic and well-designed profile resume. Ideal Skills and Experience: - Proficiency in and react js with tailwind CSS or bootstrap or Mui -use frame motion animations and dark and light theme - Proven track record in creating personal branding materials - Ability to translate traditional CV content into a more dynamic and engaging online format. Please note that due to the nature of this project, a solid understanding of personal branding and resume design for online profiles is crucial. check my cv at the attachment , one cv in details and other small one

I am seeking an experienced Python developer with a proven track record in working with the Scrapy framework. The primary goal of the project is to handle data extraction from websites, dealing particularly with nested or hierarchical data. Key Responsibilities: - Collaborating with the team to define the scope of the project and identify the data requirements. - Design and implement data extraction scripts using the Scrapy framework. - Handle complex, nested or hierarchical data structures. - Ensure the accuracy and efficiency of the data extraction process. Ideal Skills and Experience: - Proven experience in Python development. - Expertise in working with the Scrapy framework. - Strong understanding of web technologies and data structures. - Excellent problem-solving and ...

In need of a skilled professional to develop a RESTful API using Python. The API should be designed to handle multimedia data. Ideal Expertise: - Proficient in Python programming. - Thorough experience in RESTful API development. - Should specifically be adept in dealing with multimedia data handling. - Great problem-solving skills. - Conduct testing ensuring optimization and compatibility. Transparency, communication, and attention to detail will be crucial for this role. A fast turnaround will be appreciated without compromising on quality. If you have what it takes to handle this job, I welcome you to make your bid.

I'm looking for a skilled TouchDesigner and Python developer to create a script for automatically sending MOV videos as email attachments. Key Requirements: - Design and develop a Python script for TouchDesigner that can attach MOV videos to outgoing emails. - Ensure the script is robust, reliable and can handle various video sizes. - Email content doesn't need to be customized for each recipient, so a standard email template is sufficient. - Mail input from user side Your role will involve: - Understanding the project's requirements and the specific constraints of sending MOV videos via email. - Creating the necessary Python script within the TouchDesigner environment. - Testing and refining the script to ensure it performs reliably across different e...

I am in need of a Python expert, specializing in web scraping. I require someone who can proficiently extract data from various websites. The specifics of the data may vary from text content, images, links, to contact information. Your key responsibilities will include: - Writing effective and efficient Python scripts to scrape data - Ensuring the data is extracted accurately and in a structured format - Delivering the data in a timely manner The ideal candidate should have: - Proficient experience in Python and web scraping - A strong understanding of data extraction techniques - Proven experience in handling and parsing a variety of data types - Excellent communication skills and the ability to meet deadlines Please be prepared to provide examples of your previ...

I'm urgently in need of a software developer who can help me fix some bugs in my software and make some necessary adjustments to the code. Key Requirements: - Debugging: You should be experienced in identify...software developer who can help me fix some bugs in my software and make some necessary adjustments to the code. Key Requirements: - Debugging: You should be experienced in identifying and resolving bugs in software. - Code Customization: The project may require some customization of the code to ensure it meets my requirements. Your experience with software development, particularly with Java, Python or C++, will be highly regarded. The project is quite urgent, so I'm looking for someone who can start immediately and deliver fast, but without compromising the ...

I am looking for a Python developer who can implement concepts from a research paper. - The developer must have solid experience in Python, ideally with an intermediate understanding of complex programming concepts. They should be comfortable with an intermediate level of complexity in translating research concepts into code. - Knowledge and experience with the PyTorch framework is a must. The freelancer will need to use it to implement the code from the research paper. This project will require a good understanding of data structures, algorithms, and object-oriented programming in Python. Experience with prior work involving code implementation from research papers would be advantageous. Please only bid if you meet these qualifications and can deliver quality wo...

...is about algorithmic auto-investing trading on world wide's financial market. Fixed Rate Job Paid based on success delivery per country. $10/country. Make about 5-10 API/country for installing python, setting SQL for our applications and Google Sheet. For each country may need API for such as : 1. Historical Data 2. Financial Scrapped Source 3. Financial Summary Scrapped Source 4. Interest rate 5. Some More Required Skill & Experience : 1. Php & SQL 2. Familiar with python installing & setting up environments 3. Experienced in Linux Debian & LNMP server by SSH 4. You need to know on how to run python scripts on debian by ssh, and setup cron task on debian, and debugging etc Personality's Criteria : 1. No toxic working environment 2. Agi...

I'm seeking a Python expert to delve into a specific set of emails and tackle both sentiment analysis and classification tasks. Key Tasks: - Sentiment Analysis: I want to understand the overall sentiment of the email data. You will be required to identify and extract the prevailing sentiment from the emails. - Email Classification: The project includes categorizing the emails into predefined categories. This will involve analyzing the content and context of the emails to sort them into different classes. Requirements: - Proficient in Python: As Python is my preferred language for this, you should have a strong grasp of Python and its libraries for carrying out sentiment analysis and text classification. - Email Analysis Experience: Experience in analyzi...

I'm looking for a skilled programmer to help me convert my invention into an app for iOS and Android devices. It is preferred that you're located here in SAN DIEGO, CA...however it's not absolute. Key requirements: - I'm open to the programming language, so your expertise in Python, Java, or C and C ++ would be beneficial in guiding the decision. - The main functions the app should possess are user authentication and data storage. I will require a Non Disclosure Agreement [NDA] to proceed with details of the invention. If you've got experience in app development [Coding] and can help me bring my invention to life on mobile devices, please reach out. Looking forward to working with you! Thanks, Mike

I need a plugin that includes Apple Pay, Google Pay, and Link payment methods. This plugin should offer a dynamic button to facilitate these transactions based on Stripe's documentation. Please view the documentation here: The app that uses the plugin should also be able to customize the 'statement description', which is a capability provided by the Stripe API (createPaymentIntent). The suitable person would have experience in creating Bubble plugins, and hopefully would be easy for the person to make a quick and simple payment integration.

We are seeking an experienced skilled R...experienced skilled Raspberry Pi developer for an exciting machine workflow using Raspberry Pi and servo motors. The project involves developing software for control, and integrating the Modbus TCP/IP protocol. The successful candidate will demonstrate expertise in Python programming, servo control, and Modbus communication. Phase 1: Set up the Raspberry Pi 4b to control servo motors and configuring communication with the Panasonic Minas Driver and Panasonic Servo Motor. Install Modbus server software and develop custom Python scripts for Modbus communication and servo motor control. Phase 2: Control Iron Core Linear motors and configuring communication with the Mitsubishi Driver . This can turn into a long term project for the...

I'm looking for an experienced developer to help with real-time text data scr...and management using BeautifulSoup. This project is primarily focused on retrieving text data and storing it in a database. Key Responsibilities: - Implement an API scraper to continuously retrieve text data in real-time - Utilize BeautifulSoup for data extraction and management - Develop a robust database to store all the scraped text data The ideal candidate should have: - Proficiency in Python programming language - Strong experience with API scraping and BeautifulSoup - Previous work involving real-time data scraping - A good understanding of database management It is important that the data scraping runs seamlessly and accurately in real-time. Prior experience with similar projects will be...

I have a Python file that was running fine last night for data analysis purposes. However, after trying to upload the '' file to GitHub, I encountered an error due to the file size being too large for GitHub. I need to get the Python file running again, but with the '' file stored on an external service to work around the file size limitations of GitHub. Key requirements include: - Identifying and resolving the issue causing the Python file not to run - Storing the '' file on an external service and adjusting the Python code to access it from there Ideal Skills and Experience: - Proficiency in Python - Experience with data analysis and handling large datasets - Familiarity with version control, specifically using GitHub - A...

Python Script Developer for Photoshop Automation & WordPress/WooCommerce Integration We are seeking a freelance Python developer to create a script that automates Photoshop tasks and integrates with WordPress/WooCommerce for product customization. The script will: Develop a Python script to automate Photoshop operations. Integrate the script with WordPress/WooCommerce to retrieve order details. Automatically open Photoshop and modify PSD files based on customer orders. Update text layers with customer input and save customized templates as JPG/PDF.

Objective of the project The goal of the project is to develop an automated system that generates high-quality cont...This system must: Collect content from various sources (URL, RSS, XML) configurable by a Super User. Filter and process such content using artificial intelligence (AI) to improve it. Automatically publish enhanced content to a WordPress blog and various social networks. Provide an intuitive administration panel for managing system sources and configurations. Technologies and Tools Used Backend: Django Frontend: React Database: MySQL or PostgreSQL Monitoring: Prometheus and Grafana Containers and Orchestration: Docker and Kubernetes This project is already validated by AI tools to correct errors in the part described in the technical document, so the development is...

Python Script Developer for Photoshop Automation & WordPress/WooCommerce Integration We are seeking a freelance Python developer to create a script that automates Photoshop tasks and integrates with WordPress/WooCommerce for product customization. The script will: Develop a Python script to automate Photoshop operations. Integrate the script with WordPress/WooCommerce to retrieve order details. Automatically open Photoshop and modify PSD files based on customer orders. Update text layers with customer input and save customized templates as JPG/PDF.

Python Script Developer for Photoshop Automation & WordPress/WooCommerce Integration We are seeking a freelance Python developer to create a script that automates Photoshop tasks and integrates with WordPress/WooCommerce for product customization. The script will: Develop a Python script to automate Photoshop operations. Integrate the script with WordPress/WooCommerce to retrieve order details. Automatically open Photoshop and modify PSD files based on customer orders. Update text layers with customer input and save customized templates as JPG/PDF.

...can create a bot that will be used for automated trading on Binary.com. Key Functionalities: - The bot will be designed to execute trades based on predefined strategies. This means it should be able to analyze market conditions and place trades automatically as per the set strategy. Ideal Skills and Experience: - Proficient in Python: Since Python is my preferred programming language for this bot, you should have demonstrable experience in programming with Python. - Knowledge of Binary Trading: A good understanding of binary trading platforms and how they operate is a considerable plus. - Experience with Automated Trading: Prior experience in developing bots for automated trading is highly preferred. - Familiarity with : Given that the bot will be used on , e...

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.The scope of this project includes: 1. Data Transmission: You should be able to help in enhancing our network to ensure that it delivers data more optimally, focusing particularly on text-based data, as this is what our UDP/IP network primarily handles. 2. Error Detection and Correction: The hiree will also have to devise new methods for detecting and correction errors within our system. We've been facing some challenges in this area that need resolution. 3. Scalable Solutions: Our network system currently connects between 10 and 50 devices. While working on this project, it is important to keep scalability in mind to accommodate potential future growth.

Hi Miloud S., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I need a full stack developer to help with the creation of my website. While the project specifics may vary, my main requirements are as follows: - **Geo Blocking:** The website should have the ability to block users from specific ...terms before accessing the site. - **linkage to twitter & telegram. While there will not be a contract address in two of the boxes, we would like there to be a "test" of some sort to copy the info. I currently have a figma design made. We are currently working out kinks for future projects and this is a test for future work. I'm open to discussing design elements. Your expertise in these areas will be highly appreciated.

I need ...subcategories. Content Upload: images and articles in Arabic. all content is well-organized and properly formatted. SEO and Analytics: up a Google XML sitemap. Google Analytics. the site for SEO. Performance Optimization: caching solutions to improve site performance. other performance optimizations (e.g., image compression, minifying CSS/JS). Security and Maintenance: and configure security plugins to protect the site. up regular backups. the WordPress core, themes, and plugins are updated regularly. Final Review and Testing: a thorough review of the site. all functionalities to ensure everything works correctly. any necessary adjustments based on testing feedback.

I'm in need of a full-time, mid-level software developer to join our e-commerce company. You should be proficient in Python, Java, and PHP. Your primary responsibilities will include: - Coding and programming: Developing robust, scalable software solutions for our e-commerce platform. - Database management: Ensuring the efficient operation of our databases and managing related processes. - Bug fixing and troubleshooting: Identifying and addressing software issues to maximize performance. Your experience should ideally span 2-5 years, giving you a good understanding of the nuances of software development. In addition to your technical prowess, you should be able to work efficiently within a team and communicate effectively. Your input will be crucial in enhancing our e-commer...

...Response: GPT-3 generates a poem, and the webhook formats the response. Dialogflow Fulfillment: The webhook sends the formatted poem back to Dialogflow. Google Assistant: Reads the poem aloud to the user. Tools and Technologies: Google Assistant SDK: For setting up and configuring Google Assistant. Dialogflow: For natural language processing and managing conversations. Node.js/Python: For writing the webhook server. OpenAI GPT-3 API: For generating content based on user input. Example Code Snippet: javascript const express = require('express'); const bodyParser = require('body-parser'); const { OpenAIApi, Configuration } = require('openai'); const app = express(); (()); const configuration = new Configuration({ apiKey...

I am in need of a skilled Machine Learning Developer...complexity, featuring multiple variables. The primary goal of the model will be to understand the relationships between these variables. Key Responsibilities: - Utilize the provided dataset to develop a causal model - Ensure that the model is capable of effectively illustrating relationships between variables - Optimize the model for performance Ideal Candidate: - Proficient in Machine Learning and Python - Experience with building causal models - must have worked on techniques like robust synthetic control, dowhy, econml, trigamite, DECI and other double ML/causal techniques - Strong analytical and problem-solving skills - Ability to work with moderate to complex datasets - Strong understanding of relationship modeling in da...