Seeking marketing help jobs

With over 10,000 followers, my quotes and sayings themed TikTok account demands a better revenue strategy. Seeking an experienced social media monetization expert to explore, design and implement strategies excluding sponsored content. Your tasks: - Identify successful alternative monetization methods for TikTok(include but not limited to merchandising, shoutouts, donations, affiliate marketing). - Develop and execute an effective action plan. Ideal skills and Experience: - Proven experience in social media management and monetization. - Sound knowledge about TikTok specific earning strategies. - Exceptional creativity and problem-solving skills.

I'm seeking app testers who can help with a crucial aspect of my project - Usability Testing. The app needs to be tested on both iOS and Android devices to ensure it's user-friendly and intuitive. Key Requirements: - Proficiency in testing mobile applications on both iOS and Android devices. - Extensive experience in usability testing. - Ability to provide detailed, constructive feedback. - Experience in posting detailed reports on the usability of an app. -The app is a free social media platform designed for property owners or investors. To participate in the testing process, candidates should either own properties themselves or obtain approval from property vendors. -Testers can sign up for the app using usernames and are not required to disclose the real ...

I am seeking a proficient data scientist to help me extract and analyze information within the Bangladesh construction industry. This project focuses on market trends, industry analysis, and project specific statistics. This project's primary intent includes: - Uncovering market opportunities - Competitive analysis within the construction sector The findings will be utilized for: - The development of robust marketing strategies - Making data-driven business decisions Ideal candidates should have prior experience in data mining within the construction industry and have a solid understanding of market analysis and project statistics. Previous work within the Bangladesh market would be advantageous.

I'm seeking a skilled web designer and developer experienced with WordPress and Elementor to create a website for my construction company. - full web design and build on CMS tool like Wordpress, drupal - goal of website is to convert leads to sales calls - need someone with good graphic design experience so that the site has a modern look and isn't too cookie cutter/cheap looking - need to be build for web analytics - below are some examples of sites id like to mimic in a way Reference websites:

Please apply only if you can start immediately Based on the information provided, it appears you're seeking expert assistance in creating an AWS (Amazon Web Services) solution. While the project details are not specified, the potential scope of the project could involve various AWS services such as EC2, S3, and Lambda. This suggests a focus on cloud computing services to develop and potentially optimize a solution for a specific use case. Given the possibilities, requirements from you as a project manager might include: - Comprehensive understanding of AWS services - Experience in deploying AWS infrastructure - Strong analytical and report writing skills Developing an AWS solution without a specific service focus means the freelancer must have a holistic grasp of AWS. They ...

We are currently seeking a freelancing creative graphic designer or a team or a design studio for a long-term engagement to assist with our projects. Design work needs: 30-60 design works per month. Over time, the need would increase. Variety of design tasks: Our need includes both static and motion/animated video designs. Mostly static and motion banners for social media It would vary depending on our customers needs but all of them are operating in the gaming/gambling/IT industries Software: Proficiency in Adobe Creative Suite, including Illustrator, Photoshop, InDesign, After Effects, and Premiere Pro. Additional skills: Experience with presentation design using Google Slides and Microsoft PowerPoint would be a significant advantage.

I'm seeking a talented graphic designer to create an abstract business logo to foster a professional appearance for my brand. The ideal design would incorporate warm and neutral tones. It's crucial that you have previous experience in creating abstract logos, as well as a strong understanding of color theory. Key Tasks: -my business name is nightsky rentals LLC - its a rental company tables chairs and tents - Create an abstract style logo - Utilize warm and neutral colors - Convey professionalism and the unique identity of the company Skills and Experience Required: - Proficiency in graphic design software - Prior experience in abstract logo design - Ability to translate brand identity into visual design - Strong understanding of color theory and its applications....

I am seeking an SEO expert with a proven track record in improving search engine rankings, specifically for businesses within the construction industry. Key responsibilities: - Research, identify, and implement proven SEO strategies - Analyze performance metrics and adjust strategies as necessary - Provide reports on a monthly basis to show progress made Ideal Skills & Experience: - Proven experience in SEO and digital marketing - Expertise in keyword research and SEO optimization for construction services - Track record of improving search engine rankings

We are seeking an Email Sourcing Specialist to help build out a comprehensive contact list for our company. The ideal candidate will have a strong background in researching and sourcing contact details, and a proven track record of delivering accurate and up-to-date information. This project requires excellent attention to detail and strong communication skills. Tools needed: -LinkedIn -BeenVerified -Rocket Reach -Name2Email •Kendo -Clearbit -Mail Tester -NeverBounce and ZeroBounce (for email deliverability verification) Requirements: - Proven experience in email sourcing or similar role - Proficient in using online databases and search tools - Strong attention to detail - Excellent communication skills -Quick turnaround If you have a passion for data accuracy and

Please apply only if you can start immediately Based on the information provided, it appears you're seeking expert assistance in creating an AWS (Amazon Web Services) solution. While the project details are not specified, the potential scope of the project could involve various AWS services such as EC2, S3, and Lambda. This suggests a focus on cloud computing services to develop and potentially optimize a solution for a specific use case. Given the possibilities, requirements from you as a project manager might include: - Comprehensive understanding of AWS services - Experience in deploying AWS infrastructure - Strong analytical and report writing skills Developing an AWS solution without a specific service focus means the freelancer must have a holistic grasp of AWS. They ...

I'm seeking a proficient C++ developer with ample experience to handle an update to our existing source code. You will be tasked with: Upgrading the source code to make use of the RandomX algorithm (no need to implement the algorithm, as we already have it ready and we will provide the source code), currently the source code is fully working with CryptoNight. Knowledge and experience with the CryptoNight or crypto coins are incredibly beneficial. You should be well-versed in updating and refining source codes.

I am searching for a marketing expert to spearhead a campaign targeted specifically at businesses for my LED lights. The primary goal of this task is to increase sales. With a budget of less than $100, creativity and efficiency will be key. Ideal Candidate Skills: - Proven experience in B2B marketing, ideally in the LED lighting or related sector. - Demonstrable track record in optimizing marketing campaigns to boost sales. - Ability to be resourceful and innovative on a lean budget. Your responsibilities will include: - Creating and implementing a compelling marketing strategy aimed at businesses. - Utilizing efficient marketing methods to sustain the budget. - Regular reporting on campaign performance, sales increase, and cost-effectiveness. Please...

I'm seeking a proficient Laravel-Vue expert to join an existing project. Without specific details, I am assuming the need for: 1. User Authentication - Implement secure, robust user authentication. 2. Real-time Updates - Add real-time functionalities to ensure smooth, responsive interactions for end-users. 3. API Integration - Integrate multiple APIs for efficient data utilization. The project's nature remains unclear, whether it’s modifying existing features or creating new ones. Hence, applicants should be comfortable with both. Ideal Skills: - Proficient in Laravel and Vue.js - Experience in API integrations - Strong understanding of real-time update implementation - Sound knowledge of defensive programming and user authentication mechanisms Freelancers inter...

Hello, I'm seeking an experienced developer with in-depth knowledge and prior experience with the PremiumPress theme. The goal is to fine-tune the theme according to specific requirements. Here are the project details: Tasks: - Modify the layout of the theme, including rearranging elements on the page and redesigning the navigation menu. - Integrate new features into the theme. - Improve the functionality of existing features. Other Changes: - Adjust the display per row. - Customize the search page. - Make sorting alterations. - Make it mobile responsive. - Adding new payment processors Key Skills Required: - Advanced PremiumPress theme customization. - Experienced in UX/UI layout changes. - Strong PHP, HTML, CSS, and JavaScript knowledge. - Proven track record with Wor...

I'm seeking a highly skilled freelancer to assist with in-depth Android application security assessment. Skills in the following areas are required: Static Application Analysis: Understanding of tools like PEView, Dependency Walker (for analyzing dependencies in a Windows environment), APKTool, Androguard, or similar. Dynamic Application Analysis: Experience with tools like Process Explorer/Monitor (for analyzing processes in a Windows environment), Wireshark, or comparable tools. Code Analysis & Reverse Engineering: Proficiency in Ghidra, SMALI/BAKSMALI, dex2jar, and similar disassemblers/decompilers for Android code. Key Requirements: Proficiency in Volatility, APKTool, and Ghidra Intermediate level of experience in Android application security assessment. Ideal Skills...

I am creating a contracting business with a primary focus on the mining industry and local works. I am in need of professionals who can help me in several areas: - Regulatory Compliance Assistance: I want someone who has a solid understanding of the legal regulations and compliance requirements that pertain to the mining industry, both on a local and national level. - Business Plan Development: I need assistance with drafting a comprehensive business plan. This includes help with vision and mission development, strategic planning, financial planning, and competitive analysis. - Marketing and Client Acquisition Strategies: I am seeking guidance on how to attract and retain clients, gain market visibility, and establish a solid reputation within the industry. ...

I am seeking a talented Graphic Designer to help me with a project. Redesign the attached file in vector format - EPS or AI Need to 2 versions Version 1 - Exact Replica Version 2 - Take off the hand. but cards will be there (make sure the complete cards are designed) and 2nd change in oval shape, replace the shirt with HAT word Candicate who can complete this job in 30 mins will awarded with additional 50% incentive.

I'm seeking a talented graphic designer to create a professional logo for my business, Gorilla Concrete Co. Key Requirements: - The logo should demonstrate strength and durability - Preferred colour scheme is black and white - I have an image that we would like used for the Gorilla aspect. Ideal Skills: - Proven experience in logo and brand design - Understanding of visual elements (layout, type and fonts) Freelancers with a creative portfolio of relevant work samples are highly preferred. This project requires a good understanding of marketing and branding, ensuring the logo conveys our desired message effectively.

I'm seeking a talented graphic designer to create a uniquely captivating logo for WILD Clean Co., (a commercial cleaning company). THINK SAFARI…. The logo should be original work and NOT photoshopped where it looks cheap. Please be creative while maintaining professionalism. Key points: - The color scheme should include at least: green, pink, white, burgundy, and yellow. - This logo needs to be more than our name. Incorporate elements related to eco friendly (greenery, jungle, safari, wild). Also, I’m inspired by the attached images. - We want a logo that is modern and has a prevailing uniqueness to it. Ideal skills: - Strong experience in logo design - Proficiency in modern design trends - Exceptional creativity - Ability to translate abstract concepts into vis...

I am seeking a talented Graphic Designer to help me with a project. The project is in its nascent stages, so I may need help in deciding the style and theme. Your past work experience and detailed project proposals will be useful in determining if you can help me. Redesign the attached file in vector format - EPS or AI Need to 2 versions Version 1 - Exact replica Version 2 - Minus the hand (ards will be there) and change word t-shirt to hat

I’m seeking skilled machine learning experts capable of creating AI systems focused on preventing physical theft. The primary targets are retail stores, specifically, monitoring theft in aisles and the stock room. Ideal Skills/Experience: - Proficient in Machine Learning - Experience with AI security solutions - Background in retail security systems - Strong understanding of video surveillance tech Duties: - Devise advanced AI systems for theft detection - Prioritize monitoring of aisle and stockroom areas - Implement machine learning to enhance theft prevention - Ensure seamless integration with existing security infrastructure

We are a newly forming jewelry business seeking an experienced, results-oriented grant writer to help us secure $50,000 in startup funding. The successful candidate will research and identify relevant grant opportunities, craft compelling proposals, and work closely with our team to position our business for grant success. Responsibilities: * Research and identify grant opportunities aligned with our business plan and funding needs * Write clear, persuasive grant proposals and applications * Collaborate with our team to gather necessary information and data to support grant submissions * Manage grant submission process, including meeting all required deadlines * Communicate progress updates to management and incorporate feedback * Assist with post-award reporting and complia...

I'm currently seeking an experienced professional who can create detailed structural plans for a new residential building. Key Responsibilities: - Develop comprehensive structural plans for a new construction project - Ensure plans are compliant with relevant building codes and regulations - Coordinate with other professionals involved in the construction process Ideal Skills and Experience: - Proven experience in designing residential structural plans - Strong understanding of building codes and regulations - Excellent communication and coordination skills to work effectively with other professionals involved in the project.

I am seeking an experienced professional to assist in importing the current version 4.11 of OpenShift Container Platform (OCP) cluster into a new Advanced Cluster Manager (ACM). - Task Details: - The project primarily entails the import of all resources and configurations from the current OCP cluster to the new ACM. - Once imported, the new ACM should only be accessible to selected users with Full Administrator rights. - Essential Skills: - Knowledge and proficiency in OpenShift Container Platform version 4.11. - Adequate understanding of Advanced Cluster Manager. - Familiarity with administration and user access management in an ACM environment. Please ensure to provide relevant experience and demonstrated ability with the requirements stated above before makin...

I need help finding and organizing different styles of video editing and "sounds" to use in the background of edited videos. 1,500 examples Thanks!

I'm seeking an adept developer for designing an automation focused Telegram bot. The main purpose of this bot is task automation, and primarily, it should be equipped with the functionality of responding to user inquiries. Key requirements and tasks include: - Construction of bot with the ability to automate responses to user inquiries. - Integration of a reliable system for the bot to search through a database for pertinent answers. The ideal freelancer would possess the following skills and experience: - Strong expertise in creating task automation bots for Telegram. - A sound understanding of databases and utilising them effectively to deliver appropriate responses to inquiries. - Ability to deliver an efficient, responsive and accurate bot. Your practical experience in ...

Expected Salary 2000 EUR to 3000 EUR I'm seeking a Swedish speaking customer support agent with an intermediate level of expertise, specifically in complaint-handling. Key responsibilities: - Communication: the chosen freelancer must be comfortable communicating in Swedish with professional proficiency. - Grievance Management: Having a strong ability to handle complaints is key, so the candidate should be adept at resolving customer complaints effectively and ensuring customer satisfaction. Skills required: - Fluent Swedish Speaker: To effectively respond to all queries in Swedish. - Intermediate Customer Support: To competently analyze complaints and provide satisfactory solutions. - Patience and Persuasion: Above all, the ability to engage, understand, and manage customer...

I'm seeking a capable Shopify expert to address issues with slow page loading times and a high bounce rate on my web store. Despite prior attempts to improve performance, the issue remains unabated, particularly on the homepage. The ideal consultant for this project will: - Have a strong understanding and experience in Shopify speed optimization - Be able to identify and resolve issues causing slow page load times - Recommend and implement ways to improve bounce rate - Conduct necessary adjustments and interventions specifically on the homepage The ultimate aim of this project is to significantly enhance user experience and consequently increase my site’s conversion rates. I am specifically interested in professionals who have had proven success in similar tasks.

I'm seeking a talented UI/UX designer to revamp my existing design (attached). The project involves overall enhancement with a keen focus on the specific needs of students aged between 5 and 18. The idea behind the project is to teach students AI and Machine Learning. Name of the project: Alix Current Color Palette: #1F4760 and #69F2FA

I'm seeking a proficient WordPress developer for my upcoming project. Here's a brief of the project: - I need a WordPress website that's user-friendly and functional. - The website should be optimized for performance and SEO. - You're expected to deliver a clean, well-commented code. Ideal skills and experience for this project: - Previous experience in WordPress development. - Familiarity with e-commerce and blogging functionality. - Proficiency in custom design is a plus. - Knowledge of SEO optimization. - Strong attention to detail and ability to deliver on time.

I'm seeking a skilled graphic designer to subtly update and modernise the current logo of my company, while retaining its core elements. Key tasks include: - Modernising the look and feel of the logo. It should still echo the original, but be noticeably updated. - Keeping original color scheme and symbol/icon. These are core elements of our brand identity and need to remain intact. The ideal freelancer for this project has a keen eye for detail, a strong understanding of contemporary design trends, and relevant experience in logo design or redesign. Meticulous attention to continuity while refreshing the design is crucial. In your bid, please include samples of logos you've updated in the past.

I'm seeking a talented freelancer with strong experience in 3D animation to create an engaging and well-structured video that explains my product. This video is targeted at professionals and should be executed in a style that is clear, compelling, and concise. Ideal Skills: - Strong experience in 3D animation - Proven ability to explain complex products clearly - Understanding of professional audience's preferences - Ability to deliver high-quality work on schedule Purpose: - The main goal of the video is to elucidate how my product works and its benefits succinctly and effectively.

We're seeking a creative designer to craft eye-catching business boxes and gift cards inspired by art for our art gift shop. Your role is to conceptualize and design visually stunning packaging and cards that reflect our brand's identity and vision. Responsibilities: - Collaborate with our team to understand the brand's identity and objectives. - Design business boxes for corporate gifting and gift cards for various occasions. - Ensure designs align with the aesthetic and brand guidelines. - Incorporate innovative elements to set us apart. - Provide mock-ups and iterate based on feedback. - Liaise with printing vendors for production. - Stay updated on design trends.

In quick expansion of our consumer base, I am seeking an Italian native speaker to provide customer support primarily through phone calls. The ideal candidate will have basic knowledge of sales to facilitate successful interactions with our customers. Key Responsibilities: - Answering product-related queries via phone calls - Utilizing effective sales techniques to ensure customer satisfaction - Necessitate top-tier communication skills Essential Skills: - Native level Italian - Proven sales skills - Exceptional problem-solving capabilities - High-quality communication skills I invite those who fit the bill of a proactive problem solver with sales expertise and a passion for providing excellent customer support to consider this opportunity.

I'm seeking a skilled Flutter developer with full stack capabilities in PHP and Node.js. The project involves making UI/UX modifications to a social media app. Key Responsibilities: - Implementing color scheme updates - Redesigning navigation elements - Updating font choices to align with the new design The ideal candidate will have: - Proficient experience in Flutter - A strong foundation in PHP and Node.js - A portfolio that showcases previous work in UI/UX design - Good understanding of mobile app development - Experience with social media applications is a plus Please include your past work in your application.

I am seeking a native German speaker to act as a virtual sales agent. The project involves - Promoting and selling a variety of services to a German-speaking audience - Operating on a virtual platform - Translation or localization of content may be necessary The ideal candidate will have a strong sales background, be fluent in German, and have room for flexibility in terms of services sold. Fields of work could include (but are not limited to) insurance, real estate or retail products. Proficiency in English would also be beneficial, but primarily, a strong command of German language is essential.

We are looking for a skilled professional to assist us in migrate our Tech, Data Science and Product teams f...provide training and support to our teams to ensure a smooth transition. Skills required: - Expert in JIRA Server edition - Experience using JIRA Roadmapping - Strong communication skills - Project management - Team coordination - Dashboarding and KPI management - Technical knowledge of JIRA features and settings This is a medium-sized project with an estimated duration of 1 to 3 months. We are seeking an expert-level professional with a proven track record in JIRA project management and team coordination. Please provide your relevant experience and portfolio of previous work. The project may have the potential to be extended based on the successful completion of the init...

For this project, I am seeking a developer experienced in Bullet3 and Ogre to update the existing project on GitHub - ``. The primary objectives are: - Integrate with the latest versions of Bullet3 and Ogre. - Focus on improving the project maintainability. The end-product should compile successfully with no errors. Looking forward to a smooth and maintainable upgrade of project.

...for clarity and ease-of-use. Primary Goal: The website is not just a display platform, it is designed to showcase my virtual tours and attract customers to my business. I envision a design that puts my virtual tours front and center, captivating visitors to become clients. The design should place a priority on navigation and user experience. In terms of skills and experience, I am ideally seeking a designer who understands the virtual tour business well, has excellent creative skills, and a keen sense of UI/UX. Experience with speedy work delivery will be a valuable asset given the tight timeline of a week. In return for your expertise, I have budgeted $300 for this project. Let’s create something visually stunning and highly functional together! This is our website...

I'm seeking a proficient programmer with considerable experience using Tradestation and a solid understanding of the Easylanguage coding. The key objective of this project is to code an indicator from a given set of rules, the freelancer must be able to: - Code the Larry Williams "WillStop" indicator (Rules can be supplied if necessary) - Developer MUST posess their own Tradestation software and license. - Source code must be accessabile for me. An ideal candidate would be someone with profound knowledge of Easylanguage / Powerlanguage. Past involvement with Larry Williams - WillStop would be a bonus.

I'm seeking a specialised CodeIgnitor and phpMyAdmin expert to enhance my betting website's backend. As part of a 5-hour daily commitment, the role involves: - Integrating a UPI payment gateway in the admin panel. I've chosen Google Pay as the preferred UPI platform. - Setting up data analytics and reporting, crucial for measuring and optimizing our betting system's performance. Prior experience with betting sites, UPI integrations and systems reporting is desirable. If you're a driven problem solver who enjoys developing sophisticated functionalities, I'd love to hear from you.

I am seeking a Sketch Up proficient individual who can sprinkle their magic on pre-existing designs for exterior kitchens that I have. Here's more about the tasks: - Customizing Pre-Existing Designs: I have a few draft designs in hand, but I need them tailored to my preferences. You will be working on adjusting layout, space planning and selecting furniture and appliances. - Unique Layout Planning: The goal is to create an efficient and functional exterior kitchen design based on a drawing I have. Expertise in understanding and interpreting drawings to Sketch Up designs is essential. - Diverse Expertise: An ideal candidate would not just be skilled with Sketch Up, but also hold an understanding of layout planning, furniture and appliance selection for exterior kitchen desi...

I'm urgently seeking a skilled graphic designer to help expand my skill set. The project involves learning the basics of graphic design and I'm particularly interested in incorporating Java into my work. Key Requirements: - Proficiency in graphic design - Solid understanding of Java - Ability to provide clear, concise explanations for learning purposes The ideal freelancer for this project should have experience in both graphic design and Java. A background in teaching or tutoring could also be beneficial. I need someone who can effectively communicate complex technical information in a way that is easy to understand and apply. Please only apply if you can start immediately, as I'm looking to complete this project as soon as possible. I'm open to discu...

I'm seeking a talented web designer to create a modern, bold portfolio website for my business. It's essential that you have a fresh, innovative approach and previous experience building portfolio websites. Key Features: - Custom buttons: Engaging and interactive buttons are an absolute must. - Bold Design: The style should be modern and bold to reflect my distinct identity. It must convey my brand purpose, show our professionalism, and stand out from the competition. Required Skills: - Strong understanding and experience in portfolio website design - Creativity and innovation - Experience in creating custom buttons - Understanding modern design trends and principles. If you're someone who knows their way around website design and can deliver a visually excit...

I am seeking a skilled WordPress developer to help me elevate the user experience and the user interface of my website. I recently conducted a performance test on my website, and the results were less than ideal; only scoring 33%. The main problems I've identified include: - Broken links - Page loading issues - Mobile responsiveness problems Additionally, I am looking for a some redesign of the website to provide a better user experience. I would like the following improvements in UX and UI: - Clear and intuitive navigation - Consistent branding and visual identity - Responsive design for mobile devices The target audience for my website is general consumers. Ideal skills and experience for this job include: - Proficiency in WordPress development - Strong background ...

I'm seeking expertise to develop an AI solution addressing specific communication challenges in my operations. This advanced technology will aid in requesting more specific information for document retrieval, task completion, and progress updates that are currently barriers. Key Features and Responsibilities: - Construct an AI system that can precisely request added details - The AI tool should nurutre informations mainly for document retrieval, tasks execution, and progress report. - Should work effectively with email platforms as the primary communication tool. Ideal Experience: - Proven experience in AI and machine learning technology - Familiarity with corporate communication systems - Experience in integrating AI with Email services. This project aims at enhancing effic...

I need a professional and efficient website designer to help create a website for my company that serves to showcase our products or services. Unfortunately, I can't give specific categories of products or services to highlight on our site at this point, however, I will provide this during the course of our discussion. The freelancer I'm seeking for this project should have: - Significant experience in designing websites that are geared towards product or service showcase. - A strong understanding of visually captivating designs that can attract and keep customers. - Expertise in search engine optimization so that the site can appear in searches related to the showcased items. Since time is of the essence for my business, I would like this project to be completed ...

As a client, I am seeking a competent professional to help elevate my sales and marketing strategy. The primary goal of this project is to generate more sales and thereby increase my revenue. I aim to reach both consumers and businesses as my target audience. Key Responsibilities: - Devise a comprehensive direct sales strategy that drives both consumer and business sales - Implement this strategy to secure a substantial increase in sales - Making sure that we get a minimum 60 paid enrollments per week Ideal Skills and Experience: - Proven experience in direct sales and marketing, particularly in reaching both consumer and business audiences - Understanding of strategies that generate sales and increase revenue - Exceptional communication and negotiation skill...

I'm seeking a professional app designer to create a sleek and user-friendly login interface for an Android app. Below are the key requirements: - **Platform**: The design should be specifically for Android devices. Prior experience in Android app design is a must. - **Authentication**: The login system should be simple, without the need for multi-factor authentication. - **Integration**: While the design should be self-sufficient, it should not rely on any third-party authentication systems. This is a standalone login system. Ideal candidates will have proven experience in Android app design, specifically focusing on login interfaces. Strong candidates will also have a portfolio of relevant work and a good understanding of user experience principles for mobile applications.