Expert developer jobs

I'm searching for a skilled Tikz savvy programmer to produce visually engaging and clear LATEX figures to elucidate key concepts in my scientific paper. I require someone who can incorporate the following: - Effective and intelligent use of color to highlight key ideas and relationships. - Thoughtful inclusion of dimension and perspective to bring the concepts to life. - Careful placement of text labels to ensure clarity and ease of understanding. No need for interactivity or animation, static figures will suffice. An ideal candidate will showcase a solid background in scientific illustration, comprehensive knowledge in using Tikz within LATEX, and a talent for translating complex theories into easily digestible visuals.

I'm in need of a competent mechanical, civil or offshore engineer who has a deep understanding of torsional natural frequency. The chosen expert would mainly assist in analyzing torsional natural frequency in an offshore engineering context—specifically pertaining to oil and gas exploration. Ideal Skills and Experience: * Proficiency in Mechanical Structure Dynamics * Understanding of torsional natural frequency * Knowledge in total response of a spring-mass-damper system * Practical application of Duhamel integral * Strong background in offshore engineering, especially in oil and gas exploration This task requires precise analysis and close attention to detail, hence only experienced engineers are encouraged to bid. I'm looking forward to fruitful collaborations.

I'm in need of a Python developer with a focus on machine learning and AI. Your primary task will be to design and implement machine learning algorithms for our project. I'm looking for someone who can bring both technical skill and creative problem-solving to the table. Ideal Skills and Experience: - Strong Python programming skills - Proven experience in machine learning and AI - Previous project experience in this area I'm open to discussing the project, solving problems, and communicating progress. Looking forward to working with you.

I'm seeking a social media marketing professional with a proven track record in boosting brand visibility, driving web traffic, and generating leads. The main focus will be on Facebook, Instagram, and Twitter platforms, with the goal of targeting business professionals. Key Project Details: - The main objectives of this campaign are to increase brand awareness, drive traffic to our website, and ultimately convert this traffic to leads or sales. - The primary target audience we are aiming to reach with this campaign are business professionals. Understanding the demographics and behaviors of this group will be crucial in crafting effective content and engagement strategies for the campaign. - While I do have specific goals in mind, I'm also open to hearing your suggestions and ide...

I'm looking for an SEO expert to boost the subscriber base for my YouTube channel. Key Responsibilities: - Improve the search engine performance of the channel to increase visibility and attract more subscribers. - Tailor the SEO strategy to appeal to both general audience and specific niche/industry groups. Ideal Skills and Experience: - Proven track record in increasing subscribers for low-traffic YouTube channels. - Thorough understanding of SEO techniques and algorithms. - Ability to create targeted and engaging content for a mix of general and niche audiences. - Experience in analyzing and interpreting YouTube analytics data. If you have a background in growing YouTube channels and the know-how to optimize content for diverse audience segments, I'd love to hear...

I'm looking for a skilled Python developer who can help me with two key areas: revamping the structure of my code for efficiency and readability, and aiding in the creation of data visualisations. Key Tasks: - Code Improvement: enhancing the structure of my Python code. - Data Visualization: We'll be working on creating a range of data visualizations, including charts and graphs as well as interactive dashboards. You should have experience in creating these in Python. Ideal Skills and Experience: - Strong Python programming skills - Proven track record in code improvement - Previous experience with data visualization, particularly in Python - Familiarity with visualization libraries such as Matplotlib, Seaborn, Plotly, etc. - Ability to grasp complex data sets and transl...

I'm currently seeking a proficient Nginx server administrator to assist with both maintenance and optimization of our Linux server, as well as deploying new websites and applications. Key Responsibilities: - Regularly maintaining and optimizing our Nginx server on Linux, ensuring it runs efficiently and securely. - Deploying new websites and applications on our Nginx server. This might involve setting up virtual hosts, configuring DNS settings, etc. Desired Skills and Experience: - Profound experience in managing and optimizing Nginx servers on Linux. - Prior experience in deploying websites and applications on Nginx servers. - Familiarity with web hosting best practices. - Knowledge of security and optimization strategies for Nginx servers. - Adept at documentation and clear commu...

We are seeking an experienced Go High Level Expert to design, develop, and optimize high-converting websites for our clients. The ideal candidate will have a proven track record of utilizing Go High Level to create visually appealing and highly effective websites that drive conversions and enhance user experience. Responsibilities: * Design and develop websites within the Go High Level platform to meet business goals. * Design and create forms within Go High Level. * Implement conversion rate optimization strategies to maximize website performance. * Collaborate with marketing teams to align website design with overall marketing strategies and objectives. * Conduct thorough testing and troubleshooting to ensure optimal website functionality. * Implement and manage email automation ...

I'm looking for an expert Shopify developer to elevate my digital product store. There are a few specific customizations I need, but I mostly am just looking to use shopify for checkout in a subdomain & keeping the education main page on my current website/domain. Or I'm interested in adding a checkout button/checkout popup through Shopify on my main site if that's an option! My education site is My shopify site is The ideal freelancer will have a knack for understanding and executing a distinctive design vision while leveraging Shopify features to their fullest & understanding integration to other apps (I will use Kajabi for the courses/product & need help on the developement side connecting the platforms

I require an expert web developer to create an advanced, interactive website with stunning graphics and responsive design. This website aims to engage and interact with users via several interactive elements and e-commerce capabilities. Expectations include: At Sistemgraf, we aim to elevate our online presence with a website that not only stands out for its graphic quality and responsive design but also mirrors our identity as a forward-thinking technology company. Therefore, we are seeking a web developer who can undertake this project, incorporating both essential and advanced features as follows - Incorporating user registration and login system - Implementing a content management system - Facilitating e-commerce transactions - Utilizing high-quality graphics and ...

We are currently seeking a skilled Python developer to work as an external contractor on an hourly basis. The primary responsibilities will include developing a custom customer database tailored to our needs, where we can input various data such as photos, contact details, resumes, etc., and leverage machine learning algorithms for analysis. Additionally, there will be tasks involving automation and training and fine-tuning of models using tools like OpenAI's GPT-3, specifically Whisper. Key Responsibilities: Design and develop a specialized customer database for efficient data management. Implement machine learning algorithms for data analysis and insights generation. Create automation scripts for repetitive tasks. Train and fine-tune models using Whisper (OpenAI) with our o...

I'm in need of a skilled 3D visualizer to bring my products to life. The primary goal of this project is to create stunning visual representations of my products for marketing and advertising on my website. Your responsibilities will include: - Crafting detailed and photorealistic 3D models of my products - Designing engaging and visually appealing product visualizations for marketing purposes Ideal candidates should have: - Proven experience in product visualization - A strong portfolio demonstrating your expertise in 3D modeling and rendering - An understanding of the principles of marketing and advertising, especially in the context of digital platforms - Excellent communication and collaboration skills - The ability to work efficiently and meet deadlines Please make sure to ...

I'm in need of a Social Media Marketing professional to help with my Facebook, Instagram and WhatsApp accounts. My main goal is to generate leads and conversions, so I need someone with experience and proven results in this area. Key Responsibilities: - Develop and implement a comprehensive social media strategy - Create engaging content tailored to the different platforms - Monitor performance and adapt strategies to increase lead generation and conversions 1. Primarily focus on bringing in Wholesale customers (B2B). Try messaging our products to our competitors and bring them to a conversation on WhatsApp. We prefer a minimum of 5 WhatsApp conversation per week. In this way we can create a pool of Wholesale customers (We can name it WS pool). You will have to be a part of the conv...

I'm looking for an experienced RPA developer to assist me with a project that involves Automation Anywhere. The specifics tasks or processes that I intend to automate using Automation Anywhere are quite broad and can be discussed in more detail during the project. Ideal skills and experience for this project include: - Proficiency in Automation Anywhere - Experience in designing and implementing RPA solutions - Ability to understand and analyze complex processes - Good communication skills to discuss and finalize the tasks I'm looking for a freelancer who can not only execute the automation but also advise on the best practices and potential pitfalls. If you have experience in Automation Anywhere and can handle a project with a bit of flexibility on the specifics, please...

looking for corel draw expert for the doing same to design i will provide u

I'm seeking a skilled Squarespace developer proficient in adding a blog feature to my existing website. I’ve kept my own text-based content ready and need the professional touch to make it compelling and engaging for my audience. Here are the required skills and experience: - Extensive experience in Squarespace development - Proven ability in incorporating blogging functionalities - Understands how to tailor Squarespace blog feature to support text-based content - Knowledgeable in custom design practices on Squarespace to ensure smooth blending of the blog section with my site's overall aesthetic A glimpse of your past Squarespace projects focusing on blogging abilities will be appreciated. Let's make my written ideas shine on my platform.

I'm looking for a skilled mobile app developer to create a hyper casual game for both iOS and Android platforms. Required knowledge in Unity/Godot and relative development languages. Key Requirements: - Cross-Platform Development: The game must be developed for both iOS and Android platforms, ensuring a seamless user experience. - Hyper casual Game Design: The primary goal of the app is to develop an engaging hyper casual game. This will involve creating a simple, yet addictive game that can be played in short bursts. Game GDD and artistic assets are provided from the creative team. Ideal Skills and Experience: - Experience in Mobile App Development: Prior experience developing games for mobile devices is highly preferred. - Cross-Platform Development: Proficiency in both i...

I'm seeking a talented React JS developer to help fix some UI and functionality issues in my project. The bugs are more on the intermediate level, involving the malfunctioning of certain features. Key Tasks: - Identify and diagnose the existing issues in the UI - Fix the functionality problems that are impairing the user experience The ideal candidate must have: - Proven experience in React JS development - Strong problem-solving skills - A proactive attitude in identifying and resolving bugs - Previous experience in debugging intermediate level issues Please include your experience in your application, and ideally, some examples of past work where you've dealt with similar bugs.

We are in need of several highly skilled and experienced WooCommerce experts to assist with my stores. The project involves a variety of tasks, including theme customization, integration of a payment gateway, and potential product import/export. The ideal candidate will have: - Proven experience working with WooCommerce - Strong understanding of payment gateway integration - Familiarity with product import/export processes - Creative design skills for implementation of aesthetic improvements. - You must be comfortable and skilled to resolve different WooCommerce plugins issue, conflicts or bugs. A successful candidate with great track records in Woocommerce will have the great opportunity to work with us on a continuous basis.

More details: What specific areas of supply chain management do you need assistance with? Inventory management, more What information should successful freelancers include in their application? content writing How soon do you need your project completed? urgent

I'm in need of a full-stack developer who is proficient in Flutter for a mobile app development project. Requirements: - Full-stack developer: You should be experienced in both frontend and backend development - Flutter proficiency: You must have solid experience and expertise in using Flutter for mobile app development In this role, you will be responsible for: - Developing a mobile application from scratch using Flutter - Designing and implementing both the frontend and backend of the app - Ensuring the app is functional, user-friendly, and meets the project requirements Ideal skills and experience include: - Proficiency with Flutter for mobile app development - Proven experience as a full-stack developer - Strong capabilities in both frontend and backend te...

I’m looking for a Flutter Developer who can integrate in-app purchase to my existing Flutter Project. My Backend is built on Laravel and I can provide API’s for Packages and Subscription. Need Android, iOS, Windows and MacOS in App Purchase integration. My budget is CAD$100 and anyone bidding over $100 will be ignored. Need to complete it in the next 3-4 days.

I'm after an experienced web developer who can construct an e-learning blog portal that specializes in online IT training courses. This site will primarily focus on providing network security courses, catering to a diverse user base. Thus, preference will be given to candidates with an understanding of tech-related content, or conversely, a willingness to become attuned to the nuances of the end-user's requirements. Key Features Needed: - Subscription functionality: Enable users to subscribe to and pay for our services. - Post sharing: Let users share our courses on various social platforms. - Q&A: Allow questions and answers from the community for each lesson. - Partial content view: People should be able to see a small portion of each lesson/blog and be shown a pa...

I am looking for a Golang expert possessing a strong command over the intricacies of algorithm development. The project involves establishing searching algorithms for data analysis purposes. The key responsibilities include: • Algorithm Design: Focusing on searching algorithms for complex data processing • Data Analysis Application: Directing such algorithms towards effective data analysis • Data Types: Primarily catering to textual data. The ideal candidate should be skilled in Golang programming, data analysis, and should have in-depth experience developing various search algorithms. An understanding of handling and processing textual data would be beneficial. Your expertise will be key in simplifying our data handling processes and making them more efficient. P...

I urgently require someone skilled in using ACVIEmblemCreator to create detailed decal codes for me. Specifically, I'm looking for an expert who can import images and generate a decal code. The freelancer should: -Have Armored Core 6 - Proficiency in ACVIEmblemCreator - Ability to work under time constraints. As the project is of a time-sensitive nature, I need these decal codes created ASAP. Please ensure you have relevant work samples before bidding on this project. I look forward to collaborating with you.

I'm seeking a skilled C/C++ developer with a focus on Windows compatibility for a project to update and fix existing software. Key Requirements: - Experience with C/C++ programming for Windows OS - Strong problem-solving skills to fix existing software issues Please note that the scope of the project does not currently involve integration with external systems or libraries.

I am in need of proficient web developer with substantial experience and expertise in the required skills. The site will need: 1. E-commerce capabilities: A robust online store that is user-friendly and capable of managing a wide range of products. 2. User registration and login: A secure system for customer registration and login to ensure data safety. 3. Content management system: A convenient content management system facilitating seamless modifications and updates. As this website is primarily aimed to generate leads and inquiries, optimization for lead generation is crucial. Candidates are required to demonstrate a proven track record in similar projects. Let's create a platform that not only fulfills educational needs but also drives business growth.

I need an experienced WordPress developer for extensive customization of my WordPress theme and WooCommerce functionalities. The main tasks include: - Customizing WooCommerce for unique product variations and custom features on single product pages. Familiarity with variable products and conditional logic is crucial. - Incorporating additional product attributes and enabling product selection based on user input. Proficiency in PHP and custom coding is desired. Ideal candidates should have a solid foundation in working with WooCommerce, PHP, and WordPress theme development with a focus on e-commerce sites. Their programming skills should be accompanied by a keen eye for design to implement layout changes, color scheme amendments and font customization effectively. This project re...

1. Hi, I'm looking for someone who is an expert in AlphaFold and protein structure prediction, as well as PDB data, I wanted to understand this RF diffusion paper, which uses AlphaFold. However, I don't quite understand the structure of the PDB data, especially when they talk about these XYZ coordinates and other biochemistry-related terms. If you could navigate me through the structure of PDB files and, if you happen to know more about AlphaFold, that would be great. 2. Please write the links to your google scholar page in front of your proposal please.

I'm in dire need of a freelancer who is highly skilled in copywriting, article writing, and content writing. The main objective of this collaboration is to amplify my bid's effectiveness, aiding me in winning more projects. I will pay according to my project winning 20% commision of my every project, won by that freelancer stratgies. The preferred freelancers are that having more reviews. If you agree then bid, otherwise not Being primarily focused on all types of writing project bids, I'm looking forward to working with someone who: - Has a comprehensive understanding of bidding strategies and excellent writing skills to create compelling proposals. - Can strategically incorporate marketing and negotiation tactics. - Has a proven track record in similar roles. With your...

Seeking a Wix developer proficient in expanding existing websites with additional pages, maintaining consistent design aesthetics. Content will be supplied by our team, with the developer responsible for converting it into pages and blogs regularly. The developer should also adhere to best practices for SEO compliance by incorporating relevant meta tags, headings, and keywords.

I need an experienced Shopify app developer to create a specialized app for me. This app should have the following functionalities: 1. Select the Order Date and time slot in the local delivery 2. Select the store pickup address for order 3. Very Pincode for local develiry is available or not this pincode? Require Skill - Shopify Order Edit - Shopify Webhook - REST API - Node.js and React.js - MySQL and Postgres - Javascript, HTML, CSS, Jquery A critical feature I require is the ability to gather specific information with each order. This should include: - The ability to select an order date via a calendar date picker. - Collect and record this order date. Ideal candidates for this project should be experienced in the development of Shopify apps, with a parti...

If C4 and D4 have no entries, make E4 blank. If C4 and D4 have values, perform C4/D4 in E4.

I am looking for an experienced web developer to create an e-commerce site for my physical goods store. Key Responsibilities: - Develop an e-commerce platform with a seamless user experience for potential customers - Implement E-commerce functionality ensuring it's tailored for physical goods Required Skills: - Proficiency in PHP, HTML, CSS, and JavaScript - Proven experience in e-commerce website development - Familiarity with Stripe and Square payment gateways Ideal Candidate: - Has a portfolio showcasing previous e-commerce projects - Demonstrates excellent problem-solving and communication skills - Able to deliver high-quality work within stipulated deadlines Please submit examples of your previous e-commerce work when bidding.

Deliverables - Full fledged and mobile app (ios&android) with admin backend pannell. - Nearby Store locator - User can place a order with the combination of 3 (ex. Customer will chose part 1 of order from the multiple options, after selecting part 1, user will choose part 2, then part 3 from multiple available options and each item from each part will include individual cost and after choosing all 3 combinations it will be redirected to checkout page which includes all the details of selected items including cost breakdown, afterwards to payment page. - Web and app includes trending section, offers sections, trending designer collection section. - Blogs. - Gift cards. - influencer affiliate program. - Basic pages such as, contact us, about us, customer support, tracking, pri...

Hello! I'm seeking an experienced SEO expert with proven results in assisting Shopify-based websites to boost organic traffic, improve search engine rankings and increase online sales. In terms of goals: - Boosting Organic Traffic: I want to experience a significant improvement in the number of potential customers visiting my website organically. - Improving Search Engine Rankings: The importance of appearing on the first page of search engine results cannot be overstated. I aspire to improve my site's ranking on major search engines for relevant keywords. - Increasing Online Sales: An increase in traffic and better search engine ranking should correlate with increased online sales. Target Audience insight: The primary target audience for my website is B2C (Business-to...

I'm in need of an Arab Frontend Developer who is a master of and GSAP. The task on the table is to work on an interactive website that features animations along with 3D modeling and visualization. Key Requirements: - Proficiency in GSAP and - Experience in building interactive websites - Skilled in 3D modeling and visualization - Fluent in English and Arabic The primary goal of the project isn't specified, but given the need for intricacy in animations and 3D modeling, your creative input is highly valuable. The UI design hasn't been decided yet, leaving an opportunity for your artistic influence. Ideal Skills: - GSAP and expertise - Exceptional skills in 3D modeling - Creativity in interactive website design - Proficient in Arabic language.

Amarillo College invites applications for a skilled Salesforce Developer to assist in migrating our Adult Education Department (GED and ESL Programs) to the Salesforce Education Cloud. The goal is to develop a Minimum Viable Product (MVP) by the end of May, utilizing the current grant year's funds effectively. Project Requirements: Data Integration: Implement data import functionality from Ellucian Colleague to Salesforce via API. Automate student ID generation and demographic data push to Salesforce upon student initiation of the enrollment process. Experience Cloud Site: Develop a system for students to receive an email enabling them to log into Salesforce to complete their application once their data is imported. Document Management: Enable students to upload necessary doc...

I'm seeking a talented web developer who have strong knowledge of react,Node ,RDBMS and expert in making and connecting APIs to create an e-commerce website from scratch. This project implies the sale of physical products, Discounsts coupens, and is expected to list more than 50 different physical products. **Key Features** • User-friendly layout. Sample (web template design will be provided) • All the latest CRUD and E-commerce features using payment, mailing and different user profiles • Secure payment and checkout system • eCommerce SEO. **Ideal Candidate** You have a strong grasp of: • Website development (especially eCommerce) • eCommerce SEO • User experience design * Strong knowledge of JS. • Payment gateway integ...

Create a MEGA MENU as this designs: Create a Blog exactly the same as this one and using Finsweet: EVERYTHING HAS TO BE RESPONSIVE.

As an AWS user, I'm seeking a seasoned Terraform professional to assist with the network configuration and security setup for my cloud infrastructure. Key Responsibilities: - Implement best practices for Network and Security: You'll be tasked with configuring my Virtual Private Cloud (VPC), setting up firewalls and security groups, and configuring VPN connections. These components are critical for ensuring my AWS environment is both accessible and secure. - Terraform Infrastructure as Code (IaC): Your understanding of Terraform is vital in translating our network and security requirements into code. We'll rely on your expertise to efficiently deploy these configurations in a scalable and reproducible manner. Ideal Skills and Experience: - Expertise in AWS and Terraform: ...

I'm in search of a skilled Streamlit developer for an upcoming project. While specific functionalities haven't been outlined yet, the ideal candidate will be able to create an efficient, user-friendly and visually appealing Streamlit app. Key responsibilities and expectations of the developer include: - Collaborating with me to determine the specific functionalities and purpose of the app. - Developing an interactive and engaging Streamlit app. - Ensuring the app is accessible to different target audiences. In terms of skills and experience, I require a developer who: - Has a strong background in Streamlit development. - Is able to work collaboratively on determining the app's purpose and functionalities. - Can deliver a high-quality app that's u...

I'm looking for a professional who can help me with network security and PfSense configuration. Unfortunately, I've skipped specifying the exact security measures and objectives as I'm not well-versed in this field. However, I'm eager to work with someone who has a strong background in network security and experience with PfSense. The project will involve: - Implementing various network security measures - Setting up a secure and reliable PfSense system Ideal candidates should have: - Proven experience in network security - Proficiency in configuring and managing PfSense - Strong communication skills to explain complex ideas clearly to a non-technical person (me!) Please get in touch if you're confident in your ability to handle this job. No teams or companies ...

I'm seeking an experienced developer proficient in PHP Laravel for backend operations and Tailwind CSS and Vue.js for frontend tasks to enhance my webapp's functionality. Key Task: - modify and automate Facebook sharing validation. Job Features: - Implement an auto-validation function using Facebook API to verify whether a shared content from the webapp to Facebook has actually been posted. - link this validated action with a coin reward function within the webapp. The goal is to validate if the content was actually reshared by our user before our system award them coins Required Skills : - Expertise in PHP Laravel, Tailwind CSS, and Vue.js - Proven experience with Facebook API - Familiarity with developing reward mechanisms within a webapp - Strong attention to deta...

I'm in need of a professional who can design and develop an e-commerce website using Webflow. The platform will mainly serve as a storefront for a Yoga site. Key Requirements: - Develop an E-commerce Site: The main focus of the project is to create a user-friendly and responsive e-commerce website. - Payment Integration: Integrating secure and user-friendly payment methods is essential to ensure a smooth transaction process for my customers.

I'm currently looking to recruit industry experts for an interview. Key Points: - Your main task will be to help me in identifying and recruiting suitable experts from the FMCG, Aerospace, etc. industry. - Please ensure that your application includes past experience in similar recruitment projects. Ideal Skills and Experience: - Background in recruitment - Proven track record of successful recruitment practices - price per recruitment mentioned - Region: United States

I am looking for a skilled developer to enhance my site by integrating Google Meet API functionalities. The ideal candidate will be responsible for creating a seamless connection between our site and Google's services, enabling automated event management and notifications. Key Responsibilities: • Develop and integrate a feature to create Google Calendar events directly from the my platform. • Implement a system to receive push notifications on my site when an event is canceled. • If feasible, establish a method to generate and retrieve Google Meet links for these events. Requirements: • Proficiency in API integration, especially with Google APIs. • Understanding of authentication mechanisms, specifically bearer tokens. • Ability to work with...

I need a highly skilled Python developer to work on creating automation scripts. Your work will involve: - Developing scripts for task automation within other software. Desired skills and experience: - Proficient in Python scripting language - Proven experience in automation scripting - Capable of integrating scripts with various software platforms. Previous work on similar tasks would be advantageous. Please include any relevant examples in your proposal. I look forward to seeing the innovative solutions you can offer to enhance my project.

**Job Title: HubSpot and Email Marketing Expert (Freelance)** **Job Description:** We are looking for a proficient HubSpot and Email Marketing Expert to join our team on a freelance basis. This role focuses on leveraging HubSpot's software suite to optimize our marketing strategies, with a strong emphasis on email marketing. The candidate will manage and enhance all elements of our CRM, marketing automation, and customer engagement processes. **Responsibilities:** - Design and implement comprehensive email marketing campaigns within HubSpot to nurture leads and engage customers. - Oversee the integration and management of HubSpot, including CRM, marketing automation, sales automation, and customer service hubs. - Develop and maintain integrations between HubSpot and o...

I am looking for someone skilled in the field of STM32 programming, with expertise on Wiz5500. We already have a working firmware running on our custom PCB that uses the Wiz5500 to display a web page with basic interfaces. The project consists in modifying that firmware to integrate two new features : 1) After sending data from webpage to mcu, we cannot use the web browser refresh button because it re-sends the data again. We want to fix this by either re-directing automatically to the main webpage after sending data or some other way you can propose. 2) We want to synchronize the mcu with the local time. This can be done by synchronizing with the NTP server or some other way you can propose. We would like the webpage to keep working during the synchronization with NTP server but c...