Linux wordpress file uploadpekerjaan

I have an ionic app were users are able to upload pictures and videos and save it to their account page. I want users to also be able to add emojis and stickers to their pictures that are taken from their camera. I also would like a facial recognition so the users can add gifs to their face and other effects when they take videos from their camera. (please see attached image) Has anyone done this before?

We are seeking experienced lead generation professionals to assist in identifying companies raising equity capital for a growing company over the next 3-6 months. Ideal candidates will have a stron...Outreach: Send 400 emails per week to well-researched leads in specific industries. 2. Retainer: £1000 per month. PROCESS 1. Lead Research: Identify and research potential leads. 2. Email Outreach: Send emails to prospects. 3. Response Handling: Forward prospect responses to the business developer. 4. Scheduling: The business developer will schedule and conduct the sales calls. 5. Data Management: Upload researched data to our CRM in Excel format to ensure no duplications. If you are a driven lead generation professional with the required experience and skills, we would love to...

As we delve further into the world of quilt design, our team needs a proficient quilting professional who is well-acquainted with HZZE quilting software. This task involves converting our simple vector design into a .DAT file suitable for our HZZE machine. The design has been created in Adobe Illustrator and isn’t intricate, it requires implementing straight stitching only. Your skills and experience in working with similar software and accomplishing related tasks would be pivotal to the success of this project. We look forward to seeing the design come to life.

I'm looking for a skilled professional to create a 3D print file in STL format derived from an image I have. The project revolves around crafting a monochrome 3D model of a specific object within the provided image. Your tasks will involve: - Analyzing the image and focusing on the designated object. - Creating a 3D model of the object. - Generating an STL file for 3D printing in monochrome. Ideal candidates will have experience with 3D modeling, CAD software, and a keen eye for detail to accurately capture the object within the image. Please ensure your proficiency with STL file creation and monochrome 3D printing. Efficiency, precision, and ability to follow instructions closely are paramount for this task. Reach out if you demonstrate these skills. I am eager...

I'm in need of a professional and visually appealing banner for my website. The banner should be a balanced mix of text and images, adhering to a specific color scheme. Please upload the finalized design incorporating our logo for website consideration; any mock-up submissions will be automatically disregarded. You will find the necessary information attached for creating the banner, which focuses on the KTT Telex services offered by the bank. All details about this service are included in the attached file. **Key Requirements:** - Design a website banner with a mix of text and images - Use the specific color scheme as the banner currently showcased on the website: https://prominencebank.com. - Banner Size: 1903x560 cm **Ideal Skills:** - Graphic Design - Web Design ...

I need assistance setting up a WordPress blog on Amazon EC2 for a new blog AWS Setup and Deployment: a new WordPress instance on AWS using Amazon Lightsail or EC2. the existing ThemeForest theme from Bluehost to AWS. Content and Design: the site content is primarily in Arabic, with some pages in English. advice for students on studying abroad. any unnecessary content. a minimalist design. 5. Set up menus, categories, and subcategories. Content Upload: 1.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

I'm in need of an experienced developer to create a single-page website for me using WordPress. The primary goal of this website is to provide information about the services that I offer. Kindly upload the finalized design incorporating our logo for website consideration; any mock-up submissions will be automatically disregarded. Key Requirements: - Development of a single-page WordPress website - Theme selection and customization to match a neutral and professional color scheme - Use a specific color scheme as the pages currently showcased on the website: https://prominencebank.com. - Inclusion of a 'Services' section The ideal candidate should have: - Proven experience in WordPress website development - A good eye for design, with the abilit...

...modern, user-friendly recruitment website for my business. The project should be completed within a month from now. The website should feature: - Job Posting Board: The site needs a section where job listings can be posted. The job board should be easily navigable, with filtering options for job seekers. - Candidate Database: It should have a database where potential employees can create profiles, upload their resumes, and apply to job postings. - Customizable Forms: I require the ability to add customizable forms for job applications, contact information, etc. - About the Business: A page dedicated to the information about the recruitment business. - Legal and Privacy Policy: A separate section for legal and privacy policies. Key design elements I'm looking for include a ...

...audio files with full permissions from the online database provided. - Ensure all downloaded files are in audio file format and properly labeled according to instructions. - Save these audio files to your personal Dropbox account which has a minimum capacity of 1TB. Qualification: - Experience and proficiency in storing and managing files in Dropbox. - Have a Dropbox account with a minimum storage capacity of 1TB. - Exceptional attention to detail to ensure each file is stored properly and organized. - Ability to work quickly and efficiently, with 1 day deadlines. - Has unlimited internet connection with high download and upload speeds. Required Skills and Abilities: - Good file management skills to ensure all files are organized and easy to access. - Abili...

...an experienced freelancer to set up a Node.js application on our web hosting service, ensuring it runs correctly and is accessible via a custom domain. Hosting Environment: - Web hosting service: - Custom domain: - Node.js Manager is accessible through the hosting control panel. Task Requirements: - Configure the hosting environment to run a Node.js application. - Upload and set up a simple Node.js script that responds with a fixed message for any route. - Ensure the application is running and accessible via the specified domain. - Verify and configure the necessary firewall and port settings to allow traffic on the required port (default 3000). - Provide documentation of the steps taken and any configurations made. Specifics: The script should listen on port

I am looking for someone to specifically increase the number of subscribers on my YouTube channel. I want real subscribers Key Details: - My channel focuses on daily vlogs, so it's important that the growth strategy aligns with this content style. - I currently upload new videos weekly, so the growth strategy should be paced accordingly. Ideal Skills and Experience: - Proven track record of increasing YouTube channel subscriber count. - Understanding of the daily vlogs content genre. - Familiarity with strategies to enhance subscriber engagement. - Experience in growing channels which post content weekly. Please share your experience in growing YouTube channels when applying.

I'm looking for a creative and experienced photo and video editor who can breathe life into the pictures and clips of my baby. Key responsibilities include: - Applying a range of filters and effects as per the context and theme of each photo - Cropping and resizing photos and videos to fit different upload specifications - Adding engaging captions and text to enhance storytelling capabilities of the media Ideal candidates should have a keen eye for aesthetic and be versatile with the style of edits, adjusting from bright and colorful to soft pastels when needed, as the style will vary based on our needs. Your deliverables will be in the JPG format for photos and MP4 for videos. You should be adept at accommodating these specifications. If you have a knack for storytelli...

I'm in need of a prof...professional who can create a web-based file sharing script much like Dropbox or Zoho Wedrive. This project is geared towards individuals and requires the following key functionalities: - File Uploading and Downloading: The ability to upload and download files securely and seamlessly is a must. - File Versioning: Implementing a system that tracks and allows users to access previous versions of files is critical for this project. Ideal candidates should have extensive experience in web-based application development, particularly within the file-sharing niche. A solid understanding of data security, user experience, and scalability is also a plus. I'm looking for a proactive and highly skilled professional who can deliver...

I'm looking for an expert to set up Redis in a Rocky Linux podman container. The aim is to ensure that it communicates over TLS using a Let's Encrypt certificate. Key Tasks: - Configure Redis to communicate over TLS - Integrate a Let's Encrypt certificate Ideal Candidate: - Proven experience with Rocky Linux and podman - Strong understanding of TLS and Let's Encrypt - Excellent problem-solving skills The successful candidate will make sure the Redis instance is optimally secured and can communicate over an encrypted channel. I can provide the certificates and build process. podman run --name rediscontainer -it rockylinux:9.3-minimal bash microdnf -y update microdnf -y install redis

I’m looking for an experienced system programmer who can create a batch file or script that performs a specific set of tasks on a local W10/11computer. The tasks I need accomplished are: - Connect to the remote QNX computer via SSH (Secure Shell)( login/ password in config file.) -send some command (must be configurable - Run certain commands via batch file on windows 10/11 computer. (Configurable) - Run local bat comands on Windows computer (configurable) - Send key combinations on Windows computer (configurable) Managing errors if they occurs. Keep CMD open for manually entering other commands ( in feature can be automated as another project or add-on) Prior experience with batch file creation and QNX systems is necessary. Proficiency in SSH connectio...

I'm in need of an Excel expert to enhance my files. The tasks include: - Removing duplicate rows - Fixing formatting issues - Merging two sheets into one Additionally, I would like to incorporate a corporate branding style in the file, utilizing appropriate colors and logos. Ideal Freelancer: - Proficient in Excel with experience in data cleaning - Skilled in formatting and merging multiple sheets - Familiar with incorporating corporate branding within Excel

use Oracle PL SQL teach me how to install free Oracle DB on...before y or n 1 day after holyday y or n 2 days after holyday y or n 3 day after holyday y or n Store id Store state Store city Sum sold = current price * haw many sold Competitor in the same city y or n data simulation should be done in both 1) python and then python code to upload to SQL DB 2) and also in SQL you provide 1 sql and python code for simulation 2 main table creation code (only sql) for python for simulation provide detailed instructions and code how to run python code and how to upload simulated data to oralce PLSQL DB on my windows computer just ideas for python data simulation

...quickly provide necessary information. - Document Submission: Vendors should be able to upload business registration documents directly onto the platform. - Verification: The system should be able to verify the submitted documents and inform the vendor of their approval status. Data Collection: - The system needs to capture vendor information including their company name, contact details, and specific business registration documents. Registration Details: - Company Name: The system will require vendors to provide their company name. - Contact Details: Vendors will be asked to provide a phone number, an email address, and their mailing address. - Business Registration Documents: Vendors will need to upload their business license and tax registration certificate. Skills a...

This is my website link I have used "Classima – Classified Ads WordPress Theme" theme. I want to upload date from xls sheet. Excel attached for your reference. Raduus Theme is not providing support and they only provides category and location import options. Can you help me to import data

I am in need of a professional web developer who can create a comprehensive coaching platform for me. The website should have the following features: - Batch Management: I need to be able to create multiple batches for different subjects or courses. - Video Lecture Upload: I should be able to upload video lectures for students to watch online. - PDF Upload: I should be able to upload PDF files for students to view or download. - Test/Quiz Management: I need a feature where I can create and manage online tests or quizzes for the students. In addition, the website should have stringent access control measures. Specifically, the following measures need to be implemented: - Password Protection: The website should require a password for users to access the content...

use Oracle PL SQL teach me how to install free Oracle ...id Store state Store city Sum sold = current price * haw many sold Competitor in the same city y or n Week day – mon, teu, wen, ther, fr, sat, sun Weekend y or n Day after weekend ***** end Main table to calculate ***** data simulation may be done in python and then upload to SQL DB (but better in SQL) you provide both 1 sql or python code for simulation 2 main table creations code (only sql) if you use python for simulation; provide detailed instructions and code how to run python code and how to upload simulated data to oralce PLSQL DB on my windows computer just ideas for python data simulation

Estoy desarrollando un codigo que dada una imagen que un UI (interfaz web o interfaz de windows,linux etc) y una descripcion del elemento a buscar, obtenga las coordenadas centrales del elemento, por ejemplo para la pagina web de facebook, dada la descripcion "boton de registro" o "campo de texto nombre", devuelva la posicion exacta de los elementos, hasta ahora he desarrollado la parte mas basica, pero parece ser que ahora le pongas el input que le pongas siempre da como resultado el campo de registro. Ajunto las capturas y el codigo. Se requiere que se detecte cualquier elemento de la UI dado una descripcion del mismo y devuelva las coordenadas.

I'm in need of a knowledgeable Linux and AWS expert to assist me with various tasks related to command-line operations, system administration issues, and application support using AEM admin console. Key Requirements: - Strong command-line skills: You should be proficient in using the Linux command line for a variety of tasks. - System Administration: Experience in Linux system administration is essential, as I need assistance with file management, user management, and package management. - AWS Services: Familiarity with AWS services, particularly the AEM admin console, is a must. The ideal candidate for this role should possess a deep understanding of Linux, system administration, and AWS services to provide timely and effective job support.

I am in need of an experienced individual to help with data collection for my business. Unfortunately, I didn't complete the form, but here's a more detailed overview of what I need: - I require a variety of data to be gathered, which may include customer information, product details, and sales information. Having a background in managing these types of data will be essential. - The purpose behind this data collection process is to strengthen my business strategies. Your ability to interpret data and draw actionable insights from it will be crucial in this project. - The method of data collection may vary. It could involve online surveys, in-person interviews, social media monitoring, or even a combination of these. Therefore, your experience with diverse data collection metho...

Pdf to word file typing i wan a professional typer to do this

I'm looking for a professional to help me modify text and images in an AI file. I need someone to do this RIGHT NOW, If you have the time now to sharescreen and get it done in 30 mins or so. PING me or else don't bother please. I already have the AI file ( restaurant Menu )

I need a professional who can convert a 1-10 page PDF document into a fully editable Word file. The main purpose of this conversion is to be able to easily edit and update the contents of the document as needed. Key requirements: - Conversion of a 1-10 page PDF file into an editable Word document. - Retaining the formatting of the original PDF to ensure the Word file looks professional. - Including images from the PDF into the Word document, maintaining their quality and positioning. Ideal skills and experience for this project: - Strong experience with PDF to Word conversions. - Proficiency in Microsoft Word and a good eye for detail to ensure the final Word file is accurate and retains the formatting of the PDF. - Experience with handling images in Word docu...

...need someone who can make sure the website runs smoothly and can handle the back-end processes efficiently. - Product Listing: Since the main purpose of the website is for information display, I would also need you to set up a product listing section. This would require good organizational skills and an understanding of how to present information effectively. I have a Software in which i already upload the pictures of the product. Freelancer need to fill other details like Pricing , Weight , Name,Product Code and Basic Details Which i can provide in details Approximately we have 500-1000 Of Product But initially 500 products Products are Handicraft Brass Statues Ideal Skills and Experience: - Proficiency in web development, with a strong track record of creating visually ap...

...distribution system. This platform will serve as a key component of my radio station's operations. We're looking for a developer with experience on building a DDEX distribution system where the user can upload the tracks and albums, images to distribute on different dsp sites like Spotify, Beatport, Apple Music, etc and receive music from our industry partners. With functionalities where the user can upload any format of track file like mp3, wav, flac so that it can be encoded into different formats and can be distributed to different dsp sites depending upon required formats. The administrator can upload the royalty files in different formats like xls, csv, txt. provided by dsp sites and calculate the revenues for the artists and label user’...

I need an experienced Linux admin who can help me set up a CentOS server to function as a web, database, and file server. The ideal candidate will be familiar with CentOS and have experience configuring a server with multiple services. Key Requirements: - Install and configure CentOS on a server - Set up Nginx as the web server - Configure the server to also function as a database and file server - Ensure the server is secure and optimized for performance - Provide documentation of the setup and configuration for future reference.

I am on the lookout for a tech whizz who can streamline and boost our Squid and Linux configuration to more efficiently handle a large quantity of proxies, potentially using a /48 ipv6 for each, amounting to a massive number (~65k for a /32 and 512k for a /29). Currently, we are facing: - Proxy connection issues - Resource utilization problems We are working with an enormous number of proxies, way more than 50,000. Our current server is running on Ubuntu 20. Ideal Skills and Experience: - Proven track record with Linux (Ubuntu) server management - Thorough understanding of Squid protocols - Expertise in managing high-volume proxy servers - Solid capability to optimize system resources We need someone who can provide a smooth and superfast experience to our users by re...

I have a PES embroidery file that I need to be modified. The current stitch in the design is not appropriate for the jumper I need to embroider. I require a satin stitch to be applied. Additionally, I need this design to be resized for medium jumpers, up to 6x10 inches. The urgency of this project is high, as I need the modified file within 24 hours. Ideal Skills: - Proficiency in embroidery file formats, specifically PES - Excellent working knowledge of satin stitch - Experience in resizing embroidery files accurately - Ability to work under tight deadlines

I'm seeking a social media manager who can proactively handle and generate posts for my Facebook, Twitter, Instagram, and LinkedIn accounts. You will be expected to upload posts on a weekly basis. Crucial skills for this role: • Knowledge in Facebook, Twitter, Instagram, LinkedIn • Effective time-management skills • Experience in creating user-generated content Your main task would consist of: • Regularly updating all four social media platforms every week • Creating attractive user-generated content that engages followers Experience with these platforms and with producing user-generated content is a must. Apply if you meet these requirements and you're ready for an exciting opportunity to grow and engage an online audience.

I'm in need of an expert in ASP.NET Core 8, visual studio 2022, and ChatGPT 4 for a unique project. I require a tool/webpage that can seamlessly re-write chapters of my book for me. My book has 25 chapters. Each chapter contains between 10 and 30-pages. Each chapter is written in MS Word (.docx) document and must be converted into FORMAL and PROFESSIONAL-style content. This project requires the following key features: - **Input & Output Format**: - The system must take a Word document as input. - The output should be a Word document while preserving all the original formatting. - **Language Support**: - The tool should be able to rewrite the document in both English and Spanish. - **ChatGPT Version**: - I prefer the latest ChatGPT 4 for the rewriting task. Ideal Ski...

I need a developer to create a webpage to facilitate medical exam orders. Key functionalities required: - I need an order form to capture detailed patient information and then generate a medical order. - The website should feature a catalog of the various medical exams...web development experience, including integrating payment solutions, particularly Webpay. - Should be able to implement custom PDF generation and automated email sending. Extra: -The ideal design of the website can be similar to naki.app. -The funcionality of the website can be similar to the main competitor websites: -I upload a example of exam that i recent buy to the competitor, need to be similar but more clear and with elegant and good design.

...similar to , but with additional features. The website will primarily focus on selling custom clothing labels and wristbands. Clothing Labels: - Users should be able to customize their labels through a simple text input box. No additional customization options are required at this stage. Wristbands: - For wristbands, customization should extend to text input, as well as image upload. This will allow customers to personalize their wristbands as per their preferences. The website itself should be user-friendly, well-designed, and with a focus on a seamless e-commerce experience. The ideal candidate should be experienced with e-commerce sites, and be able to incorporate both standard and unique customization options. Required Skills: - Web Development - E-commerce Experience

...an experienced mobile app developer who can build a feature-rich e-commerce app that will work seamlessly on both Android and iOS. The app will cater to a WordPress-based online shop, ensuring customers have a smooth shopping experience with access to unique features. Key Features & Functionalities: - User Registration & Login: A seamless and secure process for users to create accounts and log in. - Push Notifications: Utilizing notifications to engage with users and keep them updated with the latest offers, deals, and more. - Connected to WordPress Shop: The app should effectively fetch and display product data from the existing WordPress shop, ensuring real-time updates of the product catalog. - Custom Stock Management: Admin should have the capability to...

Hello there, I'm in need of some assistance with an old PDF file. I'm experiencing issues with stains and blurriness that compromise the quality of the file. The task I need to be done involves: - Removing the stains and enhancing the overall clarity of the PDF. - The correction work will involve handling a mix of both text and images. Ideal freelancers for the job will have ample experience in handling and editing PDF files. Proficiency in using advanced PDF editing tools will be highly beneficial for this task. I value attention to detail in ensuring that the document's quality remains high and no content is lost or altered during the correction process. Looking forward to seeing your proposals.

I need an experienced Linux admin who can help me set up a CentOS server to function as a web, database, and file server. The ideal candidate will be familiar with CentOS and have experience configuring a server with multiple services. Key Requirements: - Install and configure CentOS on a server - Set up Nginx as the web server - Configure the server to also function as a database and file server - Ensure the server is secure and optimized for performance - Provide documentation of the setup and configuration for future reference.

Task at hand is to extract vocals from a highly distorted audio file OF APPROXIMATELY 8 MINUTES. I DO HAVE OTHER FILES I WOULD LIKE DONE AS WELL, IF EXTRACTION IS SUCCESSFUL. As a client, my ultimate target is related to: - Enhancing intelligibility within the dialogue to bring utmost clarity. - Identifying specific words or phrases that may prove crucial. - The file is from a criminal setup with the audio of a father setting up his son; thus every word could change the narrative. The audio clip has been intentionally distorted over crucial conversation. Do whatever it takes to make the conversation extremely clear irrespective of the overall audio quality. Those offering skills and experience in forensic audio analysis, audio software engineering will ideally match the ...

I'm looking for a data sourcing and CRM expert to help me build a targeted lead list for prospecting. The ideal candidate will have experience in: • Identifying relevant data sources for lead generation based on an Ideal Customer Profile (ICP). • Sourcing high-quality contact information (emails, phone number...management. Your Responsibilities • Collaborate with me to define my Ideal Customer Profile (ICP). • Identify and utilise appropriate data sources to find relevant leads. • Source contact information (emails and phone numbers) for potential customers aligned with the ICP. • Cleanse and validate the sourced data for accuracy. • Upload the final, clean lead list into my HubSpot CRM. • Provide guidance on best practices for data hygie...

...specific words. Key Features: - **Text Extraction:** Accurate OCR technology that can interpret and transcribe text from images with precision. - **Word Highlighting:** The app should be able to highlight certain words based on user input. I prefer these highlights to be done via color changes. - **Image Handling:** The app should allow users to take photos from within the application itself or upload from gallery Ideal Skills: - Proficiency in iOS app development. - Experience with Optical Character Recognition (OCR) technology. - Knowledge of effective text highlighting within a mobile app. - Familiarity with designing a user-friendly interface for efficient text editing. its multilingual application user can choose his language and picture text can be translated to cus...

App is ready. Upload to applestore testflight only.

...will help you in everything ******* I'm seeking a skilled PHP developer to assist with a project that involves fixing a PHP file and combining a Php ,MySQL database. The main tasks for this project include: - Resolving a database connection issue in the PHP file. - Combining the MySQL database in the backend of the PHP file. Your role will be crucial in ensuring that the database is correctly integrated into the PHP file and that the database connection is stable and error-free. The PHP file should be able to successfully communicate with the MySQL database once the project is complete. Ideal candidates for this project should have: - need to change php file and combine database. - Proficient experience in PHP and MySQL. - Demonstra...

I am seeking a highly skilled web developer to create a photography-oriented website. The primary features should include: - Image galleries sorted into specific groups. - User interaction, such as the ability to upload, comment on, and rate photos using a numeric scoring system from 1-10. - User registration via social media login, providing ease and efficiency for active social media users to interact with the site. - A comment moderation system that auto-approves comments but allows for manual review if necessary. Your experience in building web platforms with user generated content will be valuable, as will knowledge of rating and moderation systems. Fluency in coding that enables smooth social media integration is key in this project. Please bid if you have proficient skills ...

I need a skilled website developer to help me upload my WordPress website templates to Hostinger. Key Responsibilities: - Assistance with uploading my existing WordPress website templates to Hostinger - Ensuring the website functions correctly post-upload Ideal Skills: - Proficiency in WordPress and Hostinger - Experience in website template upload and customization - Good communication skills Please note: I am not looking for website design or content creation; this project is solely for technical assistance with the upload process.

is New York based Ecommerce company involved in processing of online print orders since 2010. Key Responsibilities - We are looking for AWS Linux Web Administrator to set up new and modify the existing AWS EC2 instance running Laravel application on Bitnami LAMP stack. Set up new dev server on AWS or Digital Ocean. Skills and Experience: - Minimum 3 years verifiable experience as Linux Web Administrator in creating and managing existing and new LAMP EC2 instance. Laravel application hosting experience preferred. Duration: Permanent: assignment and based on completed work items

I need an experienced WordPress developer to investigate and resolve an issue with my website's frontend file upload. Key Tasks: - Identify and rectify the problem causing files not to appear after successful upload. Additional Details: - The files are supposed to be visible on the frontend of the website, but currently, they are not showing up after being uploaded. - The uploaded files are intended to be visible only to logged-in users. Ideal Skills: - Proficiency in WordPress development and debugging. - Experience with frontend file upload functionalities. - Understanding of user permissions and visibility settings in WordPress. I am looking for a professional who can efficiently troubleshoot and resolve this frontend ...

Hello^^^^. I'm using Amazon AWS and would like to request server maintenance. First of all, I would like to ask you to do as much as possible for server security and privacy...root identification and blocking, suspicious process occupation identification and recovery, server hacking analysis, server access history tracking, password recovery and complexity setting, virus and malicious software checking,,data leakage prevention.....etc My current monthly budget is about $50, Please send me a proposal/chat with as much as you can about what you can do to secure your Linux server and I will check them all and get back to you. **You will be required to write a weekly report (anything related to security) to check the security status of the server every week. **Daily server check...

I have a simple STL file that I need to be transformed into a 3D model for visualization purposes. This project requires proficiency in SketchUp specifically and making elevation on pdf. Key requirements: - Transforming an existing STL file into a 3D model - The 3D model should be optimized for making 3d images I am looking for an experienced professional who can deliver high-quality and visually appealing 3D models with 2d elavations on autocad or pdf . An understanding of SketchUp is essential for this task. I will attach the product design in STL format upon agreement with a freelancer