Email address validation application jobs

I'm in need of a meticulous pre-employment vetting process conducted in Nouakchott, Mauritania. Here's the breakdown of my requirements: Address to visit : معهد الفاروق للدراسات الإسلامية موريتانيا - Verify Qualifications and Experience: I expect the freelancer to reach out directly to the candidate's previous employers for a thorough verification of the candidate's qualifications and experience. This should be done professionally and with sensitivity. - Detailed Information: The vetting process should seek confirmation of specific qualifications and professional certifications, not just generic employment verification. The process should be able to provide a detailed understanding of the candidate's professional history. I will provide a form that wil...

I am in need of an email configuration specialist who is well-versed in altering Gmail domain settings. Your task will involve seamlessly transitioning our current email domain to a new one of my choice. Key Requirements: - Proficiency in Gmail's backend settings and configuration - Proven experience with email domain changes on Gmail Please provide a breakdown of your process for this task, and share any relevant experience or certifications you have in this area.

...the unique selling points of the law firm and the innovative use of technology. 4. Technical Requirements: - Use of modern web technologies (HTML5, CSS3, JavaScript). - Ensure fast loading times and optimized performance. - SEO-friendly design to improve search engine ranking. - Secure and privacy-focused, particularly with the ChatGPT interactions. 5. Additional Features: - Contact form with validation and captcha to prevent spam. - Integration with social media profiles. - Option to book consultations or appointments online. - Analytics setup to track website performance and user interactions. Submission Requirements: - Portfolio of previous web development projects. - Experience with AI/chatbot integrations is a plus. - Proposal including timeline, cost, and any additional sug...

...integrate Email Marketing and Customer Support Apps with my current CRM. The key functionalities I'm looking to integrate are conversational, SMS and funnel app. Key Responsibilities: - Integrate Email Marketing features like Email Campaigns and Templates seamlessly into the current CRM system. - Integrate Customer Support functionalities to enable efficient Ticket Management within the CRM. The specific apps to be integrated should include: - Chatbot: Implement an interactive chatbot within the CRM to enhance customer engagement and support. - Text Messaging: Enable SMS sending and receiving integrated within the system. - Sales Funnel: Incorporate a sales funnel feature to streamline lead nurturing and sales processes. Ideal Candidate: - Proven track recor...

I'm in search of a dynamic customer service team of 6-10 representatives to provide comprehensive support for my customers via phone, live chat, and email. An ideal candidate would possess strong communication skills and proficiency in the English language. Key Duties: - Provide phone support - Address customer queries via live chat - Respond to customer emails Skills and Experience: - Excellent verbal and written English - Proven experience in customer service - Ability to multitask across various support channels

I need a skilled C++ developer who can work on a desktop application project. This project is straightforward. Could you modify some errors? The ideal freelancer for this job should: - Have a strong command of C++ programming language - Be experienced in developing desktop applications Your primary task will be to: - Develop a desktop application using C++ - Ensure the application is user-friendly and efficient I'm open to reviewing your past work and discussing how we can collaborate to bring this software application to life. Please share your experience in similar projects when submitting your proposal.

I need a simple iPad application developed using FlutterFlow. This application should call a REST API to verify if a user exists. Key Project Requirements: - Development of a simple iPad application using FlutterFlow - Integration of provided API endpoints to verify user existence Ideal Experience and Skills: - Proficient in FlutterFlow - Experience with REST API integration - Familiar with iPad application development - Attention to detail in UI/UX design - Ability to work efficiently and meet deadlines Please note that I'm looking for a clean, efficient and user-friendly design for this application. The UI should be designed using default FlutterFlow components.

I'm seeking an experienced accountant for assistance in making a P85 application in order to discontinue my self-employed status in the UK. Here's what I need: - Expert knowledge on the P85 filing process, as I will work on freelance basis for the same UK company I was working before on permanent basis but will invoice them monthly and pay my tax in Spain. - I am Spanish and won't go back to live in the UK. - Guidance and supervision as I fill out the forms, I'm not looking for you to do it all for me - Be available to answer any relevant questions I might have during the process - I tried to fill out the for to stop being self-employed, but it keeps telling me they are unable to process your application because the address provided does not match ...

I'm a local business owner seeking a skilled freelancer to collect emails from households within a 7-mile radius of my establishment. Key Responsibilities: - Develop a strategy to effectively gather email addresses from nearby households - Ensure that all data is collected and stored in compliance with relevant privacy laws - Implement a system for direct sign-ups via our website - Maintain high standards of data accuracy and security - Provide ongoing support in expanding our email database The ideal candidate for this project will have experience in email marketing, data collection, and compliance with privacy laws. Excellent communication skills, attention to detail, and a proactive approach to problem-solving are a must.

We are in need of a competent Java developer to build a standalone application which will require integration with databases. Skills and experience required: - Proficiency in Java - Experience in standalone application development - Knowledge and experience of integrating Java applications with databases Candidates who can demonstrate their capability in these areas will be highly considered. Don't hesitate to ask any questions you might have about the project.

I am in need of a PHP Laravel expert to address a couple of issues in my current project. - The main concern is a button in the frontend that's unresponsive when clicked. There is no error message or action, it simply doesn't function as intended. This requires a deep dive into the code to identify the cause and provide a solution. - Additionally, I've encountered some crashes that occur during specific actions within the application. These crashes are intermittent and do not happen randomly or during startup. Resolving these issues is crucial to ensure the stability and usability of the application. The ideal freelancer for this project should have: - Extensive experience with PHP Laravel and a strong understanding of backend and frontend development...

...format instead of JSON. The data parsing is working but we are looking to improve the data validation to alert the user of specific problems with their data they are uploading. Input data: Sheet 1: Work Order Tab Name, Address 1, City, State, Zip, Technician Sheet 2:Technicians Tab Name, Starting Address, Starting City, Starting State, Starting Zip, Ending Address, Ending City, Ending State, Ending Zip Some of these fields can be blank. Useful validation for the user will be required. See this documentation regarding the json format The XLS sheets will correspond to the "jobs" and "vehicles" data types in the json. Examples of data validation (some examples but not all) - 1. Missing field on a work order (return "...

...am in urgent need of an experienced developer who can create email templates that can work seamlessly across multiple platforms notably Gmail, Outlook, Apple Mail, and others within a month. We need these emails to render properly in these platforms. We will have our own designs. We have one standardized base template, with about 6-10 variations of that base template that we’d like to think of as “components”. Those templates will be put into SendGrid for use. * **Skills and Experience** * A demonstrated experience in creating robust email templates * In-depth knowledge of various email platforms including Gmail, Outlook, Apple Mail * Proven ability to deliver projects within a stipulated timeline In your application, please on...

I am in need of an Android app that can help me in monitoring the status of my machinery. Key Features: - Real-time status updates: This is the core functionality of the app. It should provide me with real-time information on the current state of my machinery. This can be critical in helping me make informed and timely decisions about my equipment. Ideal Skills and Experience: - Experience in Android development - Proficiency in real-time data integration - Previous work with monitoring applications - Understanding of equipment maintenance systems, while not essential, would be a plus I have attached files of the app for use with android studio. I need someone to make the app work.

I'm looking for a professional who can assist me in reaching out to my vast old email subscriber list. The job involves sending out messages in a non-spammy, engaging manner. Key Responsibilities: - Send out emails and SMS to a list of over 20,000 users. - Ensure the content is engaging and non-spammy. Ideal Candidate: - Proficient in email marketing tools and strategies. - Skilled in SMS marketing. - Familiarity with managing large subscriber lists. - Excellent written communication skills. If you have experience with successful email and SMS marketing campaigns, and you're confident in maintaining a high level of engagement without spamming, I'd love to discuss working together.

I'm looking for a skilled freelancer to help me clear my Windows application from our Git repository. We need to remove the application completely. The ideal candidate will have experience with Git and Windows, allowing them to seamlessly and efficiently remove the application from the repository. Key requirements: - Proficiency in Git and Windows - Experience with application removal from repositories - Attention to detail to ensure the removal is complete and clean

...single line of data with multiple fields from a Google Sheet and transferring it to 10+ different multi-page website forms that require unique login information. Additionally, the program should generate PDF documents on the target websites based on the transferred data and save them with named files corresponding to the original Google Sheet. It is crucial to incorporate error handling, data validation, mapping, and security measures into the program. If you are interested in working on this project, please provide details of your relevant experience and approach for ensuring its successful completion. The program must be compatible with the MAC operating system. Mapping Automation Parsing web-based Form entry transfer automation Designed to be easily expanded and modified to ...

...proficient English speaking writer to help me with my ECHR application form. This is a writing and proofreading task. The ECHR application is a crucial legal document and hence, it's important to make sure it's error-free to the best of my ability. I'm well-versed with the process and have already filled in most of the form, I just need someone to review it for grammar and clarity. Key responsibilities include: - Re writing the - Proofreading the ECHR application form. - Ensuring the language is clear and concise. - Correcting any grammatical errors. Skills required: - Proficient in English writing. - Familiarity with legal/ formal language. - Detail-oriented with excellent proofreading skills. - Strong working knowledge of the ECHR applicati...

As an expert in digital marketing, I'm seeking a reliable freelancer to manage my weekly email marketing campaigns. These campaigns are crucial to increasing sales, building brand awareness, and driving more traffic to my website. Serving both new and our cherished existing customers, these campaigns will need to be compelling, properly targeted and efficiently sent every week. The ideal freelancer for this project should demonstrate: * Proven experience in email marketing. * Ability to target different customer categories effectively. * Familiarity with timing emails for optimal response rates. * Skills in creating engaging and persuasive content. * Ability to measure and report on email campaign success. This should be a long-term commitment with a weekly fr...

I'm having trouble with my postfix email system, specifically, emails are not being sent or received. the email was working fine, but lately we noticed unsolicited emails sent and during the DKIM setup, the email was missed up, it send transactional emails as usual but the webmail access always shows login failed and sending/receiving is not working, test email always return mail daemon error. I am looking for an experienced postfix email specialist who can help diagnose and fix the issue. The ideal freelancer for this project should have: - Proven experience with troubleshooting and solving email deliverability issues - In-depth knowledge of postfix/dovecot email server system - Familiarity with dedicated server environments Your t...

...following: Home Page: To display the Ken Burns Slide show - I need to be shown where I can add my images. Portfolio: To show a drop down of the following, All, Early Years, Senior School, Sixth Form, Arts, Campus, Sport. I need to be shown where I can edit and add images to these portfolio pages. Blog: Single post, Full Width. I need to be shown where to add the blogs Contact Page to show address and email About page to show info about me. I'll add the content. I have a logo which needs to be added to the site too. - Proficient in Wordpress - Experience with ThemeForest and Wordpress theme installation. - UI/UX design skills to ensure the installer is user-friendly. I'll supply login details to the winning bidder to get started straight away. Looking for t...

I'm in need of a skilled UX/UI designer to help develop the interface for a health application. The project will involve designing for iOS, Android, and web browsers, so experience in cross-platform design is a must. See for the moment we need - application for , , , See video - Key Features: - Personalized profiles: The application will need to accommodate user information and preferences in a clear and user-friendly way. - Tracking and monitoring: The application should offer intuitive ways for users to track and monitor their health data. - Reminders and notifications: The design

...various services we offer, including schedules and descriptions. - 'Events' needs to showcase upcoming and recurring events, with an option to register interest where appropriate. - 'Ministries' section should detail different departments within our church and how visitors can get involved. - Lastly, 'Contact Us' page should provide all necessary contact information, from physical location to email address, with a message form for effortless communication. Ideal Skills and Experience: - Proven experience in web design and development, particularly for informational sites. - Strong understanding of building vibrant, engaging, and user-friendly pages. - Knowledge of the church or non-profit sector would be beneficial. - Excellent at interpreti...

I am in need of a professional that can help me compile a customer email list from a single business email address. The purpose of this email list is to support our marketing campaigns, allowing us to reach out to our customers and potential leads. The ideal candidate for this job will be able to gather this information solely from the incoming emails, as well as categorize them based on customer interest. Key responsibilities: - Compiling customer email list from a single business email address - Ensuring categorization of emails by customer interest Ideal skills for this project: - Proficiency in handling emails and email extraction - Experience in compiling and organizing customer data - Strong analytical skills to categori...

...Scraper Fix: Need scraper fixed so it utilizes a blend of IP address locational data to find content that interests, and is more centered on things United States people would enjoy reading about. The current texts sometimes show Indian news that is out of context. So need a revamp of the news finding system in order to actually find meaningful arcticles and headlines. Right now it shows nothing that would be at the top of google news with a quick glance. Also would be nice to integrate twitter news into this someway since certain news gets broken on twitter first. Admin Panel: Need admin panel designed as per psd files with basic user controls such as Dashboard (analytics - visitors, revenue, mrr, abandoned carts) Users (Name, email, password reset, payment on file, l...

I'm in need of an expert in email security protocols (DMARC, DKIM, SPF) to set up proper configurations for my email domains. Key tasks include: - Implementing DMARC, DKIM, and SPF for my email domains. - Ensuring these protocols are correctly set up to enhance email deliverability. - Providing documentation and guidance on upkeep and maintenance post-configuration. I'll share the number of domains and email addresses involved when we connect. Experience in implementing email security protocols and excellent communication skills are essential for this job. Please provide details on your past experiences with similar projects.

I need a Laravel expert to urgently fix functionality errors on my law firm website. Key Tasks: - Diagnose and repair functionality errors: The bugs are causing problems for some users, although they can currently be worked around. I need someone who can identify the root cause of these issues and provide a quick, reliable solution. Ideal Freelancer: -...have extensive experience working with Laravel, demonstrating a deep understanding of the framework and a track record of successful bug fixing. - Problem-solving skills: I need someone who can quickly identify issues and provide effective solutions, keeping in mind the user experience. - Time Management: This project has a medium priority due to its impact on some users. Your ability to promptly address and fix these bugs will b...

I'm in search of a skilled Laravel developer to help me address some performance issues in my application. Key Points: - The primary problem I'm facing is a significant drop in performance that's affecting the overall user experience. - While the specifics aren't described in detail, it's likely related to slow page loading, frequent timeouts, and/or delayed data processing. Your main goal will be to identify the root cause of the performance issues and rectify them in a way that ensures the application runs smoothly and efficiently. Desired Skills and Experience: - Prior experience working on Laravel applications, particularly in optimizing performance - Ability to conduct a detailed analysis of the codebase and identify the reasons beh...

I'm in need of a skilled Laravel programmer with a solid experience in web application development. Key Requirements: - Proficiency in Laravel: You should be adept at using Laravel framework to build web applications. - Strong Understanding of Web Development: A background in web development is essential, as we're focusing on a web-based project. - Effective Communication: You will need to be able to communicate effectively to ensure that the project is developed in accordance with the requirements and within the timeline. The project will entail: - Building a web application using Laravel framework - Implementing functionalities and features as required - Ensuring the application is responsive and optimized for performance Ideal Candidate: - Previous ex...

I am looking to hire a proficient mobile app developer to create a dynamic app for both iOS and Android platforms that functions similar to Uber or Bolt and addresses primarily cab booking services. Key Features: • Cab Booking: At the core of the app should be the ability to request a cab, with necessary features such as selecting pickup and dropoff locations, estimated fare, and maintaining a record of past rides. • In-App Payment Integration: The app should support seamless in-app payment mechanisms, ensuring a cashless and convenient transaction for users. Ideal Candidate: • Proficient in cross-platform mobile app development. • Prior experience or familiarity with taxi booking apps would be advantageous. • Strong experience with in-app payment gateways. &bull...

...issues regarding my website's loading times and SEO performance. I need a skilled expert to address these problems. Key Issues: - Speed: My website's load times exceed 4 seconds. This is significantly impacting the user experience, especially on mobile devices. A speed optimisation expert who can provide effective solutions is required. - SEO: Despite my continued efforts, my site does not appear in the top 10 results for my primary keywords. I require a professional with a strong background in SEO to help boost my site's visibility on search engine result pages. Ideal Skills And Experience: - Proven experience in website speed optimization. - Extensive knowledge of SEO strategies and their application. - Strong understanding of google ranking factors...

I need a Shopify expert to address a specific issue on my website as well as integrate a custom order form. - Size Issue: Customers are having trouble choosing the right size when purchasing an item. This issue needs to be resolved promptly to ensure a smooth shopping experience. - Custom Order Form: I'm looking to expand my services by allowing customers to place custom orders. This form should have the capability for customers to upload images/files and provide detailed text specifications for their order. Ideal Skills: - Proficiency in Shopify - Experience in resolving size option related issues - Ability to create a custom order form with upload functionality - Excellent understanding of e-commerce and user experience I value clear communication and efficient work, s...

I'm looking for a Java developer who's experienced with Spring framework to help me with a critical issue. The role-based security for the endpoints in my web application needs to be fixed. Key tasks: - Review the current role-based security implementation. - Identify any vulnerabilities or misconfigurations. - Fix any issues, and enhance the security measures. Ideal skills and experience for the job: - Strong Java programming skills. - Proficient in Spring framework. - Expertise in web application security. Your main goal will be to ensure the endpoints in the application are properly secured and only accessible to users with the correct roles.

...up automated workflows to handle: - Order processing and fulfillment - Customer notifications and delivery of eSIM cards - Payment confirmation and reconciliation 3. **Testing and Validation**: Ensure the integration works seamlessly, handling all edge cases. 4. **Documentation**: Provide detailed documentation of the integration process and workflows for future reference. **Skills Required:** - Experience with API integration, especially with e-commerce platforms. - Familiarity with (Integromat) and its functionalities. - Strong understanding of eSIM technology and its application in travel services. - Ability to troubleshoot and resolve any issues that arise during integration. **Deliverables:** - Fully functional integration between API and GetYourGuide

I have an issue with my Gmail email signature. When I try to add images to my signature by uploading directly, it's not displaying properly. I use gmail and zoho email client. Used to create the signature. Key requirements: - Image not displaying in email signature after uploading directly - Need a fix for the issue while keeping the signature design intact Ideal skills and experience: - Proficient with Gmail email signature settings - Previous experience in resolving image display issues in email signatures - Strong understanding of HTML/CSS would be a plus The goal is to have the images display correctly in the signature and ensure that it's a seamless experience for all recipients. Do not contact me on WhatsApp or Email!

I'm in need of a developer who can help me with a website issue. The site is facing problems with some files (possibly PHP) and the content display is affected. Key Responsibilities: - Identify and resolve the root cause of the problem causing the missing files - Address the code that's missing from the site - Ensure the content display is back to normal The ideal candidate for this project should have experience with: - PHP - Database management - Troubleshooting and debugging - Understanding of content display on websites Please note that the issue seems to be code-related and I have not made any recent changes to the site.

It is necessary solve two bugs to a Laravel application regard the frontend of condition use php 7.4. if it is necessary you must do changes to the database and the backend

I require an adept electrician to address persistent electrical issues in my living room. Specifically, I am experiencing an annoying issue of frequent circuit breaker trips. The services I require encompass electrical troubleshooting and possible rewiring of the affected areas. Ideal skills and experience: - Proficiency in identifying and fixing electrical faults - Extensive experience in electrical troubleshooting - Ability to safely and efficiently rewire electrical systems if necessary - Familiarity with circuit breakers and ways to prevent their frequent tripping Understanding of local electrical codes will be a plus. Please detail your experience in your proposal.

I'm looking for a professional app developer to create an e-commerce application that has a calendar, reminders and connects to contacts in user's phone. It needs to be compatible with both iOS and Android. The app will need to seamlessly integrate with several payment systems including PayPal, Stripe, and Apple Pay. It will require a way for user to browse gifts, purchase and send to an address wirh a message. We will need to discuss the best approach to this ans we wonder if there is an API to Amazon for example to provide a shopping experience where user enters address, message, payment is made in our app being developed, but Amazon provides items to shop? Otherwise we can create a shopping section and procide the items that can be purchased? Key requirem...

As an email marketing agency, we're seeking a skilled freelancer to assist with our email marketing campaigns. Your primary task will be the creation of automated email sequences in Mailchimp that aim to increase our client's product sales. Key responsibilities: - Design and implement segmented email automation in Mailchimp - Create compelling email copy that drives conversions - Monitor and analyze performance metrics to continuously optimize email campaigns - Implement A/B testing to improve open and click-through rates Ideal candidates for this role should have: - Proven experience in creating successful email automation campaigns on Mailchimp - Strong copywriting skills with a focus on sales conversion - Understanding of ...

We are seeking a skilled animator to create a high-quality medical training video, blending real patient footage with detailed animations. This 1-minute introductory video will address common mistakes in vascular access procedures, demonstrating the 'how' and 'why' behind each step. It will feature a mix of live footage and animations, covering crucial aspects like line cleaning, drying, and flushing techniques. The video will conclude with a call to action, encouraging viewers to sign up for a comprehensive training course. If successful, this project will expand into a full series of training videos, offering extensive content and interactive elements for healthcare professionals.

...looking to have all sizes of mail including letters and packages forwarded to my friends and family in other countries. Bid amount is for forwarding 4 packages. All mail thereafter will be paid at $20 per piece. Key Tasks: - Receive mail and notify me when you receive it (with pictures if necessary) - Professionally repackage mail if necessary - Forward mail internationally to the specified address I would need you to have a physical mailbox for this purpose, preferably at your nearest post office. I can reimburse your expense for opening a mailbox upon receiving proof (like a receipt from your post office). Ideal Skills: - Resourcefulness in managing a physical mailbox - Strong communication skills and high availability for frequent communication over text - Preferably famil...

...and they have to meet 2 criteria: 1. The business should NOT have a website (Facebook, free websites etc. are ok) 2. The business MUST HAVE a contact phone AND e-mail. The businesses need to be in the home service business in the UK (Plumbing, Electrician, Roofer, Mason, Painter, Cleaner, Pest control, etc.) We need a CSV file with the following columns): BUSINESS TYPE BUSINESS NAME BUSINESS ADDRESS BUSINESS ZIP BUSINESS CITY BUSINESS LOCALITY (IF APPLICABLE) BUSINESS E-MAIL BUSINESS PHONE BUSINESS SOCIAL LINKS (IF APPLICABLE) SOURCE FOR INFO! (this is the source where you got the info from) I say high-quality leads because when we cold-called samples earlier half of them had websites and some was wrong number and some where closed. Therefore you should bid and in your bid ...

What I want, is for you to read this carefully before responding and wasting your time and mine. I want a notification website built. That will give me notification via a generated email when certain things happen during a trading session. This email notification must be in real time or within 30 seconds of data updates using web sockets. So using web scrapping or, I can buy an API. Do basically, I need a signal when the volume for a symbol goes up or down within a certain percentage that I will give you. Based on previous day open and closing and current day. Looking at or is the type of data that the scrapping will come from. Read over this, let me know your cost to develop, time frame and monthly maintenance if any.

Fixing Email Signature on Zoho Forms

I am in need of an experienced professional who can assist with setting up a weekly email campaign that will primarily focus on promoting our products and services. Key Requirements: - Scheduled weekly bulk email setup - Customizable email templates Ideal Skills: - Proficiency in email marketing platforms - Proven experience with setting up and managing successful email marketing campaigns - Strong understanding of best practice for promotional content - Ability to work in a fast-paced environment

Need an android app to generate a pdf document. We have following fields to fill up and also et the end we need to be able to add a signature. - number - date - name - id series -id number - personal identification number - city - address - county - starting date - net income - gross income need to be able to generate pdf and also email option to send directly to email and print option

I have a registered domain with OVH hosting and need an expert to set up professional email accounts using Gmail. Here are the project details: - **Initial Setup**: I need the freelancer to set up between 1 email account. The ideal candidate for this project should have a strong background in email management, domain hosting, and Gmail. Experience with OVH hosting would be an added advantage. Please ensure that you have access to all necessary tools and can complete the setup efficiently.

...of skilled developers and data scientists design and develop bespoke AI solutions that address specific business challenges and objectives. ∙Machine Learning: We utilize cutting-edge machine learning algorithms to analyze data, extract valuable insights, and automate decision-making processes. Natural Language Processing: Our NLP solutions enable businesses to analyze and interpret human language data, enhancing customer interactions and operational efficiency. Industries Served: caters to a diverse range of industries, including healthcare, finance, retail, manufacturing, and more. We understand the unique challenges faced by each sector and tailor our AI solutions to address specific industry needs. Our Commitment: At , we are committed to deliverin...

I need a skilled Flutter developer to help me with the following tasks: - Investigate, diagnose, and fix frequent crashes on both iOS and Android builds. These crashes are causing the app to freeze, close unexpectedly, and are triggered by certain actions. - Address slow loading times on both platforms. Improving performance is a key goal for this project. - Resolve UI layout issues that are currently present in the app. The app must be responsive and display correctly on all devices. - Implement any remaining features that have not yet been added to the app (Frontend yes but Backend not implemented) This is a significant project and requires someone with a deep understanding of Flutter, particularly debugging and performance optimization. Knowledge of iOS and Android developm...