Agile project management for dummies kindle jobs
...seasoned professional to optimize and manage my seller accounts on Amazon, Flipkart, and Etsy. I deal primarily with crystals and spiritual items. Key Responsibilities: - Product Listing and Optimization: Improve visibility and attractiveness of my product listings. - Increasing sales and running advertisements. - Order Management and Fulfillment: Ensure timely and accurate processing of orders to maintain customer satisfaction. - Customer Service and Reviews Management: Handle inquiries and reviews to build a positive brand image and foster customer loyalty. I already have some listings on these platforms, but I need a professional to take my business to the next level. Ideally, you would have experience in e-commerce, particularly with spiritual items, and possess exc...
Project Posting for - Real Estate Platform for Golf Course Properties with AI Integration Project Title: Development of - A Real Estate Platform with AI-Driven Golf Course Property Listings, Virtual Tours, and Golf Course Information Project Overview: We are looking to develop , a cutting-edge real estate platform tailored for golf course properties. This website will offer AI-driven property descriptions, integrate immersive golf course virtual tours, and provide unique real-time data, making it the top destination for golf enthusiasts interested in buying homes on or near golf courses. The project will require building a user-friendly front-end and robust back-end with AI-powered features, multimedia integrations, and real-time d...
...with the following: - Subscribe - Issues The subscription page: (subscriptions are for 1yr) - Needs option for buyer to select if they are either an individual or institution/company - Needs option to purchase either a Print/Digital or Both. - Needs option for auto-renewal The Issues page: - Should show covers with mouse over of a basic description. User Account Management: Subscribers should be able to manage their accounts, subscriptions, and payment details. If they purchased digital editions, they should be viewable from their account. Admin area: Admins should be able to see/change users - and their subscriptions. Should have an option to enable/disable PDF downloads so only can view embedded for digital accounts. Payment will be made on c...
Title: Freelance Developer for Carbon Emission Monitoring SaaS (Backend/Frontend) Description: We are building an innovative SaaS platform focused on carbon emission monitoring and management for businesses. The platform will include a carbon calculator, customizable dashboards, and reporting features. We are looking for experienced freelance developers to help us build the MVP within 2–3 months. Roles: Backend Developer: Experience with Python (Django/Flask) or Node.js. Knowledge of RESTful APIs. Database setup and optimization (PostgreSQL/MySQL). Familiarity with integrating third-party APIs (e.g., Climatiq, Carbon Interface). Frontend Developer: Expertise in React.js or Vue.js. Experience with or Plotly for data visualization. Profici...
I'm in need of a Learning Management System (LMS) primarily focused on client data management. The system should allow for the uploading and storing of client information from an Excel spreadsheet, tracking payment histories, and generating reports on client data. Key Features: - Ability to upload and store client information - Functionality to track payment history - Option to generate reports on client data The LMS should have access control for both Admin and agent. It should be secure, user-friendly, and allow for seamless management of client data and payment processing. Ideal Skills: - Proficient in LMS development - Experience in creating systems for client data management - Knowledge in implementing secure access cont...
I need assistance updating over 500 product details in an Excel spreadsheet. Key Responsibilities: - Update pricing information - Revise product descriptions - Adjust inventory counts I will provide the updated information in a CSV file. Ideal Skills: - Proficiency in Excel - Attention to detail - Experience with data entry and product management
We are seeking highly motivated and experienced Delivery Partners to join our growing team. As an independent contractor, you will be responsible for timely and efficient delivery of food and other items to our customers. Key Responsibilities: Reliable Delivery: Accurately and promptly deliver orders to customers within designated timeframes. Ensure order accuracy and maintain high-quality delivery standards. Follow traffic rules and adhere to all safety regulations. Customer Service: Provide excellent customer service by interacting professionally and courteously with customers. Resolve any delivery-related issues efficiently and effectively. Maintain a positive and professional demeanor at all times. Vehicle Maintenance: Ensure your vehicle is in good working condition and prope...
I'm in need of a skilled MERN stack developer for some maintenance on my website. The job involves full stack development, specifically: - Maintaining and enhancing the frontend/UI and backend/server - Working with the database for optimal performance Additionally, I require the developer to add a small section to the site. This new section will predominantly feature: - Add one to Menu bar - Interacting with express backend to get data Ideal candidates should have: - Proficient knowledge and experience with the MERN stack - Strong skills in full stack development - Prior experience in creating and maintaining websites - Excellent understanding of database management - Capable of integrating text and images in a visually appealing way. Please bid only if you...
...based in France. For over 19 years, we have specialized in manufacturing and installing custom and standard luminous signs, indoor/outdoor waterproof LED screens, and providing complete advertising solutions. With a 3-year warranty on all our products and a strong commitment to quality, we are expanding our operations globally. We are seeking a dynamic and experienced Sales Manager to help us grow our business by building and leading a high-performing sales team. The ideal candidate will be responsible for recruiting, training, and managing a team of sales representatives to sell our products to clients and establish partnerships with distributors. This is a strategic role for someone who thrives in building and managing teams, has a proven track record in sales ...
...The primary goal of this project is to increase online reservations. The ideal freelancer for this project should have a strong background in web development, particularly for e-commerce and reservation systems, and a good understanding of the car rental industry. Key Features: - A user-friendly booking interface: This is crucial for the success of our online reservations. - Real-time vehicle availability: Users should be able to see the current status of our fleet. - Booking history: Customers should have access to their past reservations. - Automated reminders: These will help keep our customers informed and engaged. Additional Requirements: - The website should support online payments and provide API access for future integrations. - Fleet ...
I'm looking for a professional with extensive experience in developing SAAS platforms. This project involves creating a platform similar to Writesonic. Core functionalities include: - Content generation: The platform should be able to create high-quality, engaging content across various formats and industries. - SEO optimization: The content generated should be optimized for search engines, incorporating the latest SEO best practices. - Grammar and style checks: The platform should have built-in grammar and style checking capabilities, ensuring all content is polished and professional. - AI content management: The platform should feature AI-driven content management tools, helping users organize, schedule, and distribute their content. Ideal candid...
I'm developing a Financial Business Management App and need a Flutterflow specialist. . Your role will involve: - Assembling all pages of the app (frameware is present) - Setting up necessary connections - Configuring the handling of requests from the app to the API The app will feature: - Financial document management tools - Capabilities for storing and organizing photos of documents If you have a solid background in Flutterflow, particularly with app flows and API integrations, I would be keen to collaborate with you.
Project Overview We are seeking an experienced and proactive Social Media Manager who is available to start immediately. This role involves launching and managing a compelling social media campaign for our upcoming book, *The Healing Journey: Navigating Adult ADHD and PMDD*. The ideal candidate will have a proven track record of executing impactful campaigns across Instagram, TikTok, and Facebook, with a focus on engagement and community growth. Candidates must be highly responsive and comfortable with regular communication via WhatsApp. About the Book: The Healing Journey is a transformative guide designed for women managing ADHD and PMDD. It blends personal stories, science-backed insights, and actionable tools to help readers navigate challenges with resilience a...
DVR Security Application for BYD Vehicles with 360° Cameras Main Screen Camera View Button: Instantly displays all cameras to ensure they are working and synchronized with the app. App Activation Button: Launches the app for managing the cameras and system settings. Settings Driving Recording Settings Recording Resolution: Set video resolutions (e.g., 2560x1440 / 2560x1920). Start Recording in D Gear: Enables automatic recording when shifting to D gear. If not set, recording starts automatically when the car is turned on. Floating Window Display: Displays recording status (e.g., seconds recorded) on the car’s multimedia screen. Audio Recording: Records sound if the microphone is available. Watermarks: Date and Time: Displays recording time. Camera Location: Icons ...
Don't bid if you are not prefer developer for this project. If you have done similar this project, write down urls that you have done. website development Platform Name: Travel Together Objective: Create an MVP for a travel group platform that allows users to connect, form groups, and plan trips collaboratively. Core Features for MVP: User Authentication: User registration and login with email and password. Basic profile creation (name, interests, region). Group Management: Users can create travel groups with: Destination, travel dates, group size, and budget. A dashboard for users to view and manage created or joined groups. Group Search and Discovery: Users can search for travel groups by destination, interests, or travel da...
I'm looking for a skilled web developer or a dedicated team to build a comprehensive E-commerce online learning platform. The site should closely resemble the design and the functionalities of Udemy. Key Features: - A robust course management system, focusing primarily on online learning. - A user account management system, allowing for personalized learning experiences. - An efficient payment processing system for seamless transactions. Course Delivery Formats: - The website should support multiple course delivery formats including video courses, text-based courses, and live streaming courses. Learning Features: - The site should incorporate various learning features such as exams and certification management, alongside the delivery of vid...
I'm looking for a skilled software developer to implement new features in our Point of Sale (POS) system. The specific features have not been decided yet, but could include inventory management, a customer loyalty program, and advanced reporting. The primary goal of these new features is to improve efficiency - making our processes smoother and faster. Ideal skills and experience for the job include: - Proficiency in POS system software - Experience in implementing inventory management systems - Knowledge of customer loyalty program software - Ability to create advanced reporting features - Strong problem-solving skills Our POS system is not currently linked to any third-party services, so there's plenty of room for integration in the future...
I am looking for an expert to help me automate my lead tracking and follow-ups. Currently, I am primarily working with contact information stored in Excel. Key Requirements: - Experience with lead data management - Proficiency in Excel - Skills in automation tools and scripts The ideal freelancer for this project should be able to streamline my lead management process, making it more efficient and less time-consuming. Prior experience with CRM software is a plus, though not a necessity. Your understanding of tracking systems and automation will be crucial for the success of this project.
I'm in need of a skilled developer who has experience in integrating Shiprocket for order management. Here's what I'm looking for: - **Order Management**: The primary requirement is to set up an efficient and effective order management system using Shiprocket. This will involve ensuring that orders are seamlessly managed, tracked, and fulfilled. The job will involve building a bridge between my existing platform and Shiprocket. Although I haven't specified the exact nature of sync needed, expertise in Shiprocket integration and setting up order management is crucial. A solid understanding of e-commerce operations and logistics would be an added advantage. Please only apply if you have relevant experience with Shiprocket and ...
Project Overview: We are seeking a highly skilled and experienced Full-Stack Developer to join our team for the development of a sophisticated online and mobile application. This is a temporary position for one month, with the possibility of extension based on project needs and performance. Our project involves creating a state-of-the-art platform that demands advanced technical expertise and a deep understanding of user experience (UX) design. Project Details: Duration: 1 month (with potential extension) Platform: Online web application and mobile application (iOS and Android) Development Process: Advanced, utilizing the latest technologies and best practices Focus Areas: Robust functionality, seamless user experience, and scalable architecture ...
I'm facing frequent API limit issues affecting the integration between Google Sheets and ChatGPT. This happens multiple times a day and disrupts my workflow. Ideal Skills: - Experience with Google Sheets and ChatGPT integration. - Strong understanding of API limit management. - Problem-solving skills to troubleshoot and resolve the issue. I need someone to help fix this issue.
I need assistance with setting up my Google Workspace email. This includes the basic setup without the need for configuring custom email domains. Ideal Skills: - Proficient in Google Workspace - Experienced in email setup and management - Knowledgeable in cyber security for spam setup
I'm looking for an experienced mobile app developer to build a comprehensive healthcare application. This app should primarily focus on patient management. Key Features: - The app should facilitate efficient patient management - Incorporate health monitoring features for heart rate, blood pressure, blood glucose levels, and diagnostic reports - User-friendly interface to cater for both healthcare professionals and patients Three important things we need in the app: What's app integration Payment Gateway In app wallet Ideal Skills: - Expertise in mobile app development, particularly for healthcare - Strong understanding of patient management systems - Experience in integrating health monitoring features Please p...
WARMUP phase 10% 2.500 = USD 10 I'm seeking assistance in sourcing new email addresses for a mail merge. The countries of interest include Dubai, Kuwait, Saudi Arabia, Bahrain, Qatar, Oman, and Yemen. Key Details: - Industry Focus: The email addresses must be from the Engineering, Project Management, Construction, and Plant Engineering sectors. - Contact Level: I'm specifically looking for C-Level contacts, Presidents, and Heads of departments. - Target Job Titles: The email addresses should belong to individuals with the job titles of CEO/President, Head of Engineering, or Head of Project Management. Deliverables: 2500 valid email addresses up to date Make sure you are using a bot or can share data from a designated provider Mand...
I'm preparing for a job interview in the Real Estate/Construction/Architect industry and I need a professional PowerPoint presentation that communicates a project proposal effectively. Key Components: - The presentation must include project timelines and milestones - A detailed budget and cost analysis - Innovative design concepts and plans Ideal Skills: - Expertise in PowerPoint - Background in Real Estate/Construction/Architecture - Strong project management and design understanding - Excellent communication skills to present complex information simply
I'm seeking a sea...Business Analyst who can meticulously create functional requirement documents for our Human Resource Management system. The key focus areas will be: - Recruitment and Onboarding: Defining the requirements needed to streamline and enhance our hiring processes. - Employee Performance Management: Outlining the necessary features for tracking and assessing employee performance. - Payroll and Benefits Administration: Detailing the requirements for managing employee compensation and benefits. Ideal candidates for this project should have a strong background in HR processes, business analysis, and technical documentation. Experience in creating functional requirement documents or should be able to develop and screen etc ...
Project Overview: website development Platform Name: Travel Together Objective: Create an MVP for a travel group platform that allows users to connect, form groups, and plan trips collaboratively. Core Features for MVP: User Authentication: User registration and login with email and password. Basic profile creation (name, interests, region). Group Management: Users can create travel groups with: Destination, travel dates, group size, and budget. A dashboard for users to view and manage created or joined groups. Group Search and Discovery: Users can search for travel groups by destination, interests, or travel dates. A dynamic list showing available groups. Group Communication: Basic chat,, call, video call feature for discussions within...
...way. and support me to host my 1 event Key Responsibilities: - Venue arrangement - Marketing and promotion - Exhibit design and setup - Logistics and coordination - Vendor management - Attendee engagement Ideal Candidate: - Proven experience in event planning, particularly exhibitions - Excellent organizational and logistical skills - Strong vendor management capabilities - Creative and effective attendee engagement strategies - Expertise in marketing and promotion - Skills in exhibit design and setup - Venue arrangement experience Your role will be crucial in ensuring the success of this exhibition. I am looking for someone who can manage all aspects of the event, from the initial planning stages through to the final execution. Your expertise will guide me on ho...
I'm looking for a skilled web developer who can create a personalized website for my T-shirt brand. The reference website is provided here: Key Requirements: - The project page needs a 360-degree rotation feature, allowing users to view the T-shirts from all angles. - A WordPress-based backend tool to manage product details, with real-time updates reflected on the main page. This tool should also incorporate order tracking and customer feedback systems. Ideal Skills: - Proficient in WordPress and WooCommerce - Experience in creating interactive 3D visualizations - Understanding of inventory management systems - Able to integrate customer feedback mechanisms - Excellent web development skills, with a portfolio of similar projects
I am looking for an experienced developer to implement a Single Sign-On (SSO) using OpenIddict on my ASP.NET Core platform. The project does not require user role management, so the focus will be purely on the SSO integration. Key Requirements: - Proficient in ASP.NET Core - Extensive experience with OpenIddict - Previous work with SSO implementations - Ability to deliver clean, efficient code This is a crucial project for my organization and I am looking for someone who can complete it in a timely manner without compromising on quality. Please avoid unnecessary delays.
I'm looking for an experienced backend developer to set up a TUS Protocol Server on my Linux server. This server should be configured to work seamlessly with my main application that runs on Node.js and utilizes Uppy for file uploads. Key requirements: - Expertise in Node.js and server management - Experience with TUS Protocol Server - Familiarity with Uppy - Linux OS proficiency Please note, I did not specify any custom configurations for the TUS Protocol Server, so the default settings should suffice. However, the server must be capable of handling the demands of my main application and Uppy concurrently.
Deliveries : 1. Optimize for Search Engines (SEO) On-Page SEO: Optimize meta tags (title, description). Use headers (H1, H2, H3) with primary and secondary keywords. Ensure URLs are clean, descriptive, and keyword-rich. Add alt text to images with keywords. Create an XML sitemap and submit it to search engines like Google and Bing. 2- update the page view count 3- Local SEO (if applicable) Like all keywords about Data Science e.g. Data Science Cources in Sydney .... 4- Add google Analytics plugin 5- Security Features SSL Certificate: Ensure the site is HTTPS-secured. Data Protection: Include features like Captcha to prevent spam. 6- Load Speed Optimization Optimized Content: Compress images and minimize code to reduce load time. 7- Automate Data Science News Aggrega...
...looking for someone who is creative, has a good knowledge of pre-school education and understands parents' needs. We need a professional to build an engaging website, manage Google ads, and handle our Instagram communication on a weekly basis. Key Responsibilities: - Create a user-friendly, appealing website focused on increasing enrollment. - Implement and manage effective Google ads to reach potential parents. - Curate and maintain engaging weekly content on our Instagram to connect with parents and showcase our school activities. Ideal Skills and Experience: - Strong background in preschool education or child development. - Proven experience in website design, preferably for educational institutions. - Expertise in Google ads management with a track record...
...E-Learning Application. This will be a typical Learning Management System (LMS) that allows us to upload our learning modules. Our clients will have the ability to pay for each module and subscribe to the content. Key Features: - Content Upload: The LMS should support various types of content, including audio, text, video, and images. - User Access: There will be different levels of access; Client access, their employee access, and Admin access. The Admin will have the capability to upload LMS modules and track subscriptions as well as monitor class progress. - User Authentication: The application will require a simple, secure email and password user authentication system. - Payment Options: The LMS will offer two payment methods for clients - Credit/Debit Card and...
I'm looking for a professional with expertise in SEO and social media management. My primary goals are to increase website traffic and improve search engine ranking through effective SEO strategies. Additionally, I need a proficient manager for my Facebook, Instagram, and Twitter accounts. Ideal Skills & Experience: - Proven track record in SEO optimization - Experience with managing Facebook, Instagram, and Twitter - Ability to develop and execute effective strategies to meet project goals - Excellent understanding of current SEO trends and social media algorithms
I'm seeking an expert in WordPress and SEO for my e-commerce site. I require comprehensive management of the site along with enhancing its visibility and ranking through effective SEO strategies. Key Responsibilities: - Full management of my e-commerce WordPress site - Implementing and monitoring On-page, Off-page, and Technical SEO strategies Ideal Skills: - Extensive experience with WordPress, particularly in managing e-commerce sites - Proven track record in improving website's SEO - Proficient in implementing On-page, Off-page, and Technical SEO strategies
...WordPress web developer for my corporate website. The main tasks will include managing the website, installing plugins to boost site speed, and setting up detailed UTM parameters to differentiate the course of leads. Experience with Google Analytics is essential. Key Responsibilities: - Comprehensive website management - Installation of speed-enhancing plugins - Setting up UTM parameters for lead tracking Backend Development: - I need assistance primarily with setting up UTM parameters. This is crucial for differentiating the course of leads. Ideal Skills: - Extensive experience with WordPress - Proficiency in backend development - Familiarity with Google Analytics - Skills in database management, API integration, and custom functionality developme...
I'm looking for an expert who can set up a comprehensive Google Sheet for my company's production operations and inventory management. The sheet should track the following aspects of our production: - Production output - Employee productivity - Equipment usage The inventory management system should encompass: - Stock level tracking - Order management - Supplier management Access to the sheet will be controlled, with an 'Admin' level and 'read-only' access for other users. If you have experience in creating such systems and can ensure user-friendly functionality, I would love to hear from you.
I'm looking for a professional with experience in email marketing to help gather Letters of Intent from Canadian farmers for Ecoflare Solutions Inc. This is crucial for our online platform's launch. Key Requirements: - Collecting specific information from farmers such as: - Farm size and type - Commitment to work with Ecoflare Solutions Inc - Technology readiness level - Type of assistance needed from Ecoflare Solutions Inc - Willingness to deliver directly to customers or thru third parties - Additional Information to be collected: - Preferred communication channel - Intent and willingness to collaborate with Ecoflare Solutions Inc post-launch - Complete physical address Ideal Skills: - Proficient in email campaign management...
I'm looking for a professional to help me run Facebook Ads targeting architects who are seeking contractors for their construction and interior projects. The main goal of this campaign is lead generation. Ideal Skills and Experience: - Proven experience in Facebook Ads management - Familiarity with targeting professionals, specifically architects - Expertise in lead generation strategies - Creative skills for designing engaging image ads - Strong understanding of construction and interior design industry
...specifically video content for Instagram. Your role will encompass: - Content Creation: Craft engaging and high-quality video content tailored for our target audience on Instagram. - Social Media Management: Strategically manage our Instagram presence, ensuring consistent and engaging posts. - Meta Ads & Google Ads Management: Oversee and optimize our advertising efforts on Meta and Google to enhance our reach and engagement. - SEO: Implement effective SEO strategies to improve our online visibility and reach. - Influencer Marketing: Identify and engage with relevant influencers to promote our brand and content. The ideal candidate for this project should have extensive experience in digital marketing, particularly in content creation and ...
Project Overview: website Platform Name: Travel Together Objective: Create an MVP for a travel group platform that allows users to connect, form groups, and plan trips collaboratively. Core Features for MVP: User Authentication: User registration and login with email and password. Basic profile creation (name, interests, region). Group Management: Users can create travel groups with: Destination, travel dates, group size, and budget. A dashboard for users to view and manage created or joined groups. Group Search and Discovery: Users can search for travel groups by destination, interests, or travel dates. A dynamic list showing available groups. Group Communication: Basic chat, call and video callfeature for discussions within a group. Sa...
...feature to a wallet application can significantly enhance users’ financial management capabilities. Below is a detailed description of each component of this feature: 1. Types of Fixed Deposits and Interest Rate Settings • Deposit Period Options: Provide users with multiple deposit period options to choose from, such as 3 months, 6 months, 1 year, 2 years, and 5 years. Offering a variety of terms allows users to select the option that best suits their financial goals. Each period should have clearly defined interest rates and calculation methods to ensure transparency. • Interest Rate Settings: Set competitive interest rates for each deposit period by considering current market trends and competitor offerings. For instance, shorter-term deposits m...
I'm experiencing various issues with approximately 5 short Microsoft Power Automate flows. These flows primarily handle file processing and management for PDF, Excel, and Word files. Key Requirements: - Troubleshoot and fix various issues with the flows - Ensure accurate and efficient file processing Ideal Skills and Experience: - Expertise in Microsoft Power Automate - Proficient in handling PDF, Excel, and Word files - Strong problem-solving skills to identify and rectify errors in the flows
I'm looking for a professional who can create a web-based software for managing gold loans. The software should primarily handle customer management and include key features like loan processing, payment tracking, and repledge handling. Key Requirements: - offline platform - In-depth customer management system - Efficient loan processing module - Comprehensive payment tracking feature - Repledge management capabilities Ideal Skills: - Software development with a focus on web-based applications - Experience with developing loan management software - Strong understanding of customer relationship management systems - Ability to incorporate inventory tracking into software. I need a reliable and professional developer who can deliver t...
I'm seeking an experienced developer to integrate our in-house imports management software, built in PHP, with ICEGATE for filing Bill of Entry via SMTP. ( prefer someone who has worked / done this ) Key Requirements: - Integrate our software with ICEGATE - Enable filing of Bill of Entry - Use SMTP for communication Specifications: The Bill of Entry should include: - Product details - Supplier information - Payment terms Ideal skills include: - Proficiency in PHP - Experience with ICEGATE - Knowledge of SMTP - Understanding of imports documentation Please provide examples of similar projects you've completed when bidding.
I'm looking for a Python expert to assist me on an hourly basis with an automation project. The primary goal of this project is to increase efficiency through task automation. The ideal freelancer for this project should be proficient in Python, with a strong background in task automation. Experience with automating tasks such as file management, email sorting, and data entry would be beneficial.
Title: Looking for an expert to manage monthly development and SEO for my website Description: I am looking for a skilled professional in web development and SEO optimization to manage my website www.edilalbaristrutturazioni.it. Job Requirements: 1. Ongoing development and maintenance: • Technical updates for the website (speed, security, compatibility). • Optimization and enhancement of user interface (UI/UX). 2. Monthly SEO optimization: • Keyword analysis. • On-page and off-page optimization. • Implementation of best SEO practices to improve search engine rankings. 3. Blog content creation: • Writing blog posts based on strategic keywords. • Using tools like ChatGPT to generate high-quality articles. 4. Det...
I'm seeking a Flutter developer with experience in macOS to update both libraries and dependencies of my project, and compile it on OSX. The current version of Flutter being utilized is the stable one. Key Responsibilities: - Update all necessary libraries and dependencies - Compile the project on OSX - Ensure the project runs smoothly post-updates - Provide a small document with the changes/updates Skills & Experience Required: - Extensive experience with Flutter - Proficiency in macOS - Strong understanding of libraries and dependencies management - Excellent troubleshooting skills