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  4. (Current) DOS Specialists
  • $10 hourly

    • 4.5/5
    • (25 jobs)
    I have 12 years of experience in web development. I initially started my career working on PHP. I then explored Databases like MySQL and Mongo DB. I cached things with Redis and Memcache. Pushed code with Git. Worked on plain vanilla JavaScript. After that moved to Node.js and Express.js. Acquainted with AWS, DevOps(Git, Jenkins, SonarQube, Spinnaker, ArgoCD, Docker, Kubernetes, Openshift), Microservice, Serverless, and Nginx web servers. Developed code in Angular and React. At present, writing a lot of JS code (client and server). Before starting freelancing, I was associated with big tech companies and developed many enterprise-level software. Please contact me if you want to know more about my competency. I am sure you will be with the right person, trust me.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Terraform
    API
    Laravel
    Git
    Node.js
    Web Development
    PHP
    Docker
    Amazon DynamoDB
    Kubernetes
    MongoDB
    Linux System Administration
    AWS Lambda
    Golang
    Python
  • $11 hourly

    • 5.0/5
    • (63 jobs)
    I have over 20 experience years working in the IT industry in a number of different areas ranging from database applications, to office automation, to system wide implementations to CRM system implementations, to custom development. I have primarily worked on Upwork projects involving data extraction and formatting, but I have experience in other areas as well.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Oracle Database Administration
    English
    Time Management
    Computer Skills
    Microsoft Excel
    PHP
  • $40 hourly

    • 4.9/5
    • (125 jobs)
    MSc. in Computational Physics, with lot of experience in writing simulation programs with different programming languages. I have good experience with machine learning and artificial intelligence, a strong background in Mathematics and Physics. I like solving problems and optimizing algorithms. I keep deadlines and deliver quality products. I am comfortable with the following programming languages: C/C++, Fortran, Python, Matlab, PHP/MySQL, Javascript/Jquery, VB, Microsoft Excel and Access VBA, R, Java, Turbo Pascal. I have been working with LaTeX for more than 10 years, and I have produced complex mathematical expressions as well as LaTeX templates. I primarily work to satisfy my clients, derive personal satisfaction on a job well done, and only then comes payment.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Visual Basic for Applications
    Delphi
    Mathematics
    Fortran
    Scientific Computation
    MATLAB Script
    Pascal
    Physics
    Data Science
    C
    LaTeX
    MATLAB
    R
    Python
  • $45 hourly

    • 5.0/5
    • (12 jobs)
    20+ years as a developer using various technologies and programming languages, combined with knowledge of all major databases. My vast experience include (but not limited): a- embedded C for automotive industry b- C++/C#/Pascal/Delphi/Lazarus for Windows/Linux/Android/iOS/MacOS both desktop and mobile. c- PHP/Java/JavaScript/HTML for various web projects d- Databases include (but not limited): Access/Interbase/Firebird/MySQL/Oracle/MSSQL/PostgreSQL e- Office advanced knowledge (VBA) for Access/Excel (macros/scripts/forms) f- Raspberry Pi - General programming / Embedded for IoT g- Electronics and Hardware/Software integration (experience with various readers/sensors included). Also I like to design my own PCB's for various pet projects I use around my house - I use Altium (former Protel) and OrCAD for this. h- Cryptography - secure communication / protocol analysis i- AI on both speech and visual recognition. Neural network training for OCR was one of my first love 20 years ago and continued on this field ever since. Ask me any advice, programming related of course, I'll give it to you for your project for free, even if you don't hire me. I've seen way too many clients here on Upwork getting scammed with false promises only to get scammed out of their money but more importantly getting their time wasted for months. My motto: "If I will win the lottery and become multimillionaire I will still do programming, at least for my personal satisfaction". Programming is my hobby, along with electronics and chess. We're a team, husband and wife, she's the designer and I am the programmer. Account is made on her name due to official documents being easier to send/receive since we live in her house. That's it, no other reason - this last section was provided more as a clarification for Upwork staff then clients.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Software Architecture & Design
    Embedded Linux
    Windows App Development
    HTML
    PHP
    X86 Assembly Language
    SQL
    CSS
    Raspberry Pi
    Database Design
    PostgreSQL
    Microsoft Windows
    JavaScript
    C#
    Delphi
  • $75 hourly

    • 4.8/5
    • (42 jobs)
    Q: In what area of programming do you specialize at present? A: Currently I'm programming in AutoHotkey – a Windows automation tool. I love this flexible language – my own AutoHotkey script saves me a lot of time in everyday tasks. Also last year I performed projects using PHP and VBA. Q: What projects from your experience you are most proud of? A: First thing that comes to mind is my Bachelor’s degree work on the recognition of road signs. My colleague and I coded it in C# using computer vision library EmguCV. The result was a test prototype with a probability of traffic signs detection about 70%. Q: Are there any projects from your career history, which you remember more than others? A: There was a huge project called corporate television Anivers TV, in which I participated as a CTO. It had been written for 8 months using PHP technology, Symfony, JavaScript. The employer was one of the major banks of Russia – Sberbank. Corporate television broadcasts news, videos, exchange rates, weather and bank’s services on indoor TV sets in offices of Sberbank. I’m proud that this software is launched in more than 300 bank branches and it has been working for more than 5 years. Q: What type of work you are interested in? With whom would you like to work? A: Now I’m interested in projects with a duration of no more than two weeks to gain experience in the freelance market. I would like to work with the English-speaking customers, who need to make small or medium-sized projects. Q: What is your unique skill as IT specialist? A: I can work with jobs associated with completely different areas of IT knowledge. For example, you need to create a table using VBA in Excel, and then display it on a website via PHP. As an IT specialist, I’m able to do everything from task analysis and developing an understanding to implement algorithms in a target programming language. Therefore, a client will only have to run a program. Q: Oh, I understand, it’s like a turnkey project? A: Yes, it is. I’m able to carry out turnkey projects and I’m ready to fix any bugs within one month FOR FREE after the customer project launching. That is to say, I give a technical support to my clients. ◼
    vsuc_fltilesrefresh_TrophyIcon DOS
    Automated Testing
    Desktop Application
    AutoHotKey
    Autoit
    Robotic Process Automation
    Scripting
    Python
    C#
    Microsoft Excel
    PHP
    Automation
    JavaScript
    Selenium
  • $99 hourly

    • 5.0/5
    • (2 jobs)
    I have extensive experience in all aspects of Information Technology from the smallest job to the most complex systems. I have consulted with a wide variety of organizations both internationally and locally in the Washington DC metro area. I am particularly knowledgeable in the Non-Profit area where I have developed custom software, built database websites as well as recommended off-the-shelf Association Management Software and implemented the transition to these systems. I have designed and implemented both complex and simple networks from a small 4 user office to a several thousand user networks. In this regard, I have managed large data centers as well as small centers with only a few servers. I have been involved in virtualizing servers to minimize the data centers footprint. I have also wired a number of offices for ethernet as required by the client. Particularly for office moves and setting up new retail space such as restaurants etc. I have transitioned a number of organizations from old analogue phone systems to IP phone systems as part of my overall IT support. I manage the transition as well as continue to manage the phone system as required. In addition, I have worked with individuals both in home offices as well as at the client site assisting with implementation of hardware, software and networking of their PCs and MACs. I can diagnose and troubleshoot problems that include Internet connectivity, printing problems, Microsoft Office issues etc. I am very patient with end-user frustration.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Fortran
    Hardware Troubleshooting
    Network Engineering
    Excel Macros
    Microsoft Access
    Computing & Networking
    COBOL
    SQL Programming
    Web Design
    Visual Basic
    FoxPro Programming
    Data Backup
    ASP.NET
    WordPress
    Web Application
  • $25 hourly

    • 5.0/5
    • (7 jobs)
    I am a Quality Engineer with over 10 years of experience in software testing, that includes designing, building, and maintaining different Test Automation Frameworks for banking, finance, and HR technology industries, in a continuous integration/continuous delivery (CI/CD) environment. I am also a contractual Automation Expert and helps out with all things RPA related for an IT consulting company that specializes in Digital Transformation and Automation.
    vsuc_fltilesrefresh_TrophyIcon DOS
    SQL
    C#
    Microsoft VBScript
    Java
    Apache Groovy
  • $20 hourly

    • 5.0/5
    • (221 jobs)
    Hello! my name is Magdy. - I have 20+ years of experience working as a freelancer. - My main skill is to deliver on time, always communicate and put a big eye on details. I can help you for the following :- * Generate Barcode Labels from Excel Files * Generate Avery labels From Excel files * Extract Data from PDF files to Excel or CSV * Convert Single Label PDF to Avery Labels * Convert Avery Labels to Single Labels * Stamp PDF using Text , Image and Barcode * Split PDF File * Merge PDF files * Auto Print PDF files from folder * Auto print ZPL files from Folder * ZPL Programming
    vsuc_fltilesrefresh_TrophyIcon DOS
    Visual Basic
    Visual Basic for Applications
    Web Crawling
    Amazon
    Thermal Printer
    Adobe Acrobat
    Data Scraping
    Scripting
    Desktop Application
    Label & Packaging Design
    Copy Editing
    Microsoft PowerPoint
    PDF Conversion
    Microsoft Office
    Document Conversion
  • $25 hourly

    • 5.0/5
    • (9 jobs)
    Full stack .Net, more 10 years C#, architecture Clean Architecture, ASP.NET Core, git, docker Master of Computer Science, finished, some Doctorate Level Courses Also some python(fastapi), node(twilio), react, angular(rx) upwork wants 300 symbols, so some diff level exp: #wpf (several apps+linq+reports), #couple hand-made ORM c# via reflection, #git, #react, #typescript (cordova app+hammer+redux), #xamarin.forms (several apps), #signalR+xamarin/html client, kendo mvc, #winForms (several apps+reports+linq+sql server or ms access or oracle), sql, #java (se, not very ee), vanilla js, python for scripts, #asp.net web pages (big project, more 10 yrs used for now), nodejs (basics+http+tests+files), not much angular, #patterns, #solid, some projects books // #ada (much parallel, but ago), pascal, assembler :) probably something else.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Xamarin
    ASP.NET MVC
    Entity Framework
    .NET Framework
    Java
    JavaScript
    C#
    SQL
    XML
  • $50 hourly

    • 5.0/5
    • (34 jobs)
    •Expert Advisors. •Scanners •Dashboards •Indicators. •Scripts. Hi, I'm Habiba. I'm a Meta Trader 4 MQL4 programmer with 5+ years of experience in creating Expert Advisors, building Indicators(Dashboards, Scanners), and writing scripts. I would love to assist you in coding your Custom Strategy or Indicator or a Fully Functional Custom Strategy-based Expert Advisor. Feel free to arrange a call(free of charge) to discuss your project. Best regards, Habiba
    vsuc_fltilesrefresh_TrophyIcon DOS
    Technical Analysis
    Forex Trading
    MQL 4
    MetaTrader 4
    Trading Automation
  • $50 hourly

    • 5.0/5
    • (14 jobs)
    With over 7 years of experience as a Cloud and System Engineer, responsible of quality of a Mission Critical systems in the dynamic field of energy and fuel-oriented technologies, I have developed a strong skill set in designing, implementing, maintaining and supporting cloud and hybrid-based solutions. By showcasing my skills and consistently contributing fresh, innovative ideas to a variety of projects, I have been recognized for my expertise and awarded by a possibility to execute top-class initiatives. My expertise in this area enables me to effectively analyse, optimize and provide services in accordance with strict business processes and workflows, resulting in the delivery of optimal, streamlined solutions that are aligned with organizational goals and objectives. My experience is as follows Cloud Engineering and Product Ownership: Engineering, deploying, maintaining, and supporting Mission Critical systems on the Cloud as a product / system owner responsible for quality. Liaising for all IT-related communications with the technology vendors to oversee and facilitate our interactions to ensure that our IT needs are met. Business Client Service: Providing Tier 2 & Tier 3 support for the most critical issues and problems of business users related to Cloud solutions. Assisting business analysts in developing the rapidly-changing, market-driven processes of the business lifecycle. Project Management and Solution Development: Leading and delivering on project that varies in severalty from minor solutions to Mission Critical systems in a lifecycle of in-house solutions development based on cloud environments. Issue Resolution Developing proactive and reactive monitoring of vital system components to avoid downtime and deliver to strict business requirements. Advising and aiding “Quick Response Teams” in solving major critical incidents related to business critical systems. Availability and Security Maintaining system availability under strict change process and tough SLA as well as handling sensitive and confidential data in “information lifecycle” process. Currently, my primary focus lies on the cloud where I specialize in cloud engineering, system administration, business support and requirements discovery. My expertise in this area enables me to effectively analyse, optimize and provide services in accordance with strict business processes and workflows, resulting in the delivery of optimal, streamlined solutions that are aligned with organizational goals and objectives. I am open for all Cloud and Microsoft stack related opportunities to Develop, Engineer, Support or Advise your business in ever growing and swiftly changing modern market.
    vsuc_fltilesrefresh_TrophyIcon DOS
    WordPress
    Web Hosting
    VoIP
    Cloud Security Framework
    Cloud Services
    Cloud Computing
    Network Engineering
    Network Security
    Microsoft Intune
    Data Recovery
    Troubleshooting
    System Administration
    Windows Administration
    Microsoft Azure
    Microsoft Windows
  • $25 hourly

    • 4.9/5
    • (23 jobs)
    vsuc_fltilesrefresh_TrophyIcon DOS
    Data Recovery
    Proxmox VE
    Network Administration
    RAID Administration
    Cisco IOS
    Linux System Administration
    Unix System Administration
    LAN Administration
    Linux
  • $30 hourly

    • 5.0/5
    • (197 jobs)
    Ever since I was a kid, I've been fascinated by computers. I was introduced to Linux almost 15 years ago, and that was the time I discovered my first true passion.. I worked as a software developer (iOS - Swift) and Linux system administrator, but I wasn't satisfied with neither developing corporate/commercial applications, nor repeating same routines like adding/removing users, setting up VPSs, configuring programs following the same conventions.. I needed something to satisfy my passion for creativity and problem solving/algorithmic/programmatic thinking, but that is still related to Linux.. Enter Bash, an amazing way to interact and utilize full potential of your Unix OS in a totally programmatic manner.. I've been perfecting my Bash skills for over 5 years now, and I have quite a lot of complex projects, successful jobs and happy clients to support that.. I'm also quite proficient with Python as well, but given my stand on mainstream appliances, I'm only interested in jobs utilizing core principles, I DON'T have any "domain-specific" skills, so please DON'T contact me about AI/Machine Learning/Trading/Full stack/bot automation etc, only basic python skills.. That being said, if you're looking for a Linux expert who thinks of Bash as a programming language and vim as an IDE, feel free to reach out and I'd be happy to provide my services! :)
    vsuc_fltilesrefresh_TrophyIcon DOS
    Bash
    Unix
    Vim
    Linux
    Awk
    Unix Shell
    Regex Writing
    Bash Programming
    Git
    Python
  • $60 hourly

    • 5.0/5
    • (42 jobs)
    I am a software developer and researcher. My knowledge in this field will help me solve any problem in this field. Moreover, my devotion to the job will encourage me to carry any difficult tasks. I have the skills which will aid me to maintain a good relationship with clients and team members. My positive attitude will always keep me on the right track. My hardworking attitude will be useful for the development of the company I have 5+ years of experience in software development and machine learning; Tools and technologies: — NLP — LLMs & ChatGPT — Machine Learning and Deep Learning ; — CNN, ANN — Keras — Tensorflow — PyTourch — Python — YOLO — PyQt5 — C/C++ — C# — IoT & Embedded Systems — Java — Arduino — Raspberry Pi — Automation — Web (HTML, CSS, JavaScript) — Node.js — Vue — Arduino — Raspberry PI — Flutter
    vsuc_fltilesrefresh_TrophyIcon DOS
    Linux
    PyQt
    Microsoft Windows
    Raspberry Pi
    Artificial Intelligence
    Deep Learning
    OpenCV
    Natural Language Processing
    Python
    Machine Learning Model
    Machine Learning
    Neural Network
    Computer Vision
    Artificial Neural Network
  • $65 hourly

    • 5.0/5
    • (36 jobs)
    I'm an experienced software developer based in the UK. I've worked with a wide variety of businesses such as NHS Digital, Green Flag, Severn Trent Water and Boohoo.com; on a wide variety of applications, ranging from content management systems & high volume ecommerce to genetic algorithms & linear optimisation. My priority is making sure that your project is a success, please get in touch to work together on something great!
    vsuc_fltilesrefresh_TrophyIcon DOS
    MySQL Programming
    MVC Framework
    Microsoft SQL Server Programming
    C#
    PHP
    .NET Framework
  • $33 hourly

    • 4.9/5
    • (35 jobs)
    Hi, I developed web applications for more than 15 years using Python, PHP, JS (backend and frontend). I worked on absolutely new projects and maintained existed ones. I also worked with SQL, OOP, JSON, XML and a lot of different PHP frameworks: Django, Flask, Laravel, Zend Framework, Kohana, CodeIgniter. I'm seeking work to create awesome web applications. If you have some work for me - let's discuss how we can collaborate.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Front-End Development
    Laravel
    Node.js
    PHP
    Django
    Python
    Flask
    Vue.js
    React
  • $18 hourly

    • 5.0/5
    • (92 jobs)
    🚀 **Full Stack Developer with Expertise in PHP, Laravel, React, and Linux Administration** 🌐 👨‍💻 **About Me:** - Skilled & Versatile Developer 🛠️ - Proficient in PHP, Laravel, React, Nginx, Yii, Shopify, WordPress , Chrome Extensions 🚀 - Specialized in API Integrations & Custom CMS Development 🔄 - Extensive Experience in Linux Administration ⚙️ 🌟 **Project Portfolio:** - Successfully Delivered Robust Web Applications 🚀 - Custom Themes & Plugins for WordPress and Shopify 🎨🔌 - Seamless API Integrations for Data Exchange 🔄 - Expertise in Custom CMS Development 📄 - In-Depth Understanding of Linux Administration 💻 💡 **Why Collaborate With Me?** - Years of Experience & Proven Track Record 📈 - Dedicated & Experienced Developer 💪 - Turning Ideas into High-Quality Results 🌟 - Focus on Exceptional Solutions for Business Needs 🚀 - Reliable Server Management & Optimization Expertise ⚙️ 🤝 **Let's Collaborate!** If you're seeking a reliable developer to bring your ideas to life and deliver exceptional solutions, I'm here to help. Let's collaborate and create success for your business! 💼🌐 ____________________________________ 🔝 **Ready to Start the Conversation!** 💬😊 Click "Message" to discuss your project needs and goals. ____________________________________
    vsuc_fltilesrefresh_TrophyIcon DOS
    SEO Performance
    Linux
    Shopify
    CSS
    HTML
    API Integration
    WordPress
    React
    Laravel
    PHP
  • $10 hourly

    • 3.7/5
    • (5 jobs)
    My 3 significant years of work experience and multiple skills and qualities make me an ideal candidate for the role. Duties performed involve weighing and evaluating factors requiring judgment, analytical ability, and problem-solving. I am responsible for making sure our customers have a great experience. I was able to deliver an exceptional customer experience by responding to inquiries in a timely, effective and accurate manner. I successfully dealt with diverse customers and clients with unique demands. I am skilled in my emotional intelligence and keen to utilize my passion and vast experience in excellent customer service to provide the best possible customer experience for clients and customers. I believe that is the key success of good quality customer service. Also, adept at managing departmental administrative duties as assigned. With international solid and key communication skills and significant insight into global and cultural diversity, I feel that I am a knowledgeable and qualified candidate. Looking forward to a fruitful collaboration with you. Please consider my experience and qualifications for this position: ⦁ Received supervisory calls and managed all assigned client escalations and issues to full resolution. ⦁ Handled priority queues within the Customer Care department including Billing Retention, Level 2 Support, and other escalated situations. ⦁ Strong skills in Salesforce, Zendesk, Freshdesk, NetSuite, MS Office: Excel, Word, Outlook, PowerPoint, Google Sheets, Google Keep, Google Calendar, Desktop Sharing, VoIP, Slack, Microsoft Teams, Google Chat, Trello, ⦁ Provide customer support in a 24/7 service desk support 145 collocation data centers globally with N+1 redundancy and 99.99% uptime ⦁ Enter all requests into online locking ticketing systems for tracking purposes and assign appropriate responsibility for problem resolution via Email, Phone, Google Form, and Customer Portal within established service levels ⦁ Part of specialized team managing orders only for the top accounts: financial services, enterprise, Cloud, and Content Providers ⦁ Directed investigations to verify and resolve customers' complaints. ⦁ Work with the Vendors, Sellers, and Carriers, about customers' inquiries of the products and complaints that are resolved in accordance with Company policies. Regards, Edralin E.
    vsuc_fltilesrefresh_TrophyIcon DOS
    Order Tracking
    Microsoft Office
    Ticketing System
    SEO Keyword Research
    Phone Communication
    Customer Service
    Customer Support
    Social Media Management
    Technical Support
    Email Support
    Online Chat Support
  • $13 hourly

    • 4.9/5
    • (332 jobs)
    I have been working in Upwork since 2010 with focus on below tasks: - Microsoft Office/Excel VBA script and automation - Website data scraping/crawling - Windows automation script and small software - Google apps script and Google API script for automated tasks. With profesional way of working and attitude. I hope that i can work with all of you and keep long term relationship.
    vsuc_fltilesrefresh_TrophyIcon DOS
    MySQL
    Google Spreadsheets API
    Desktop Application
    Web Crawling
    Microsoft Excel
    Automation
    Perl
    Google Apps Script
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