Top Upwork Freelancers

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  1. Arseniy Sluchevskiy

    Arseniy Sluchevskiy

    Web scrape specialist

    Russia - Tests: 2

    Over the last years I have experience in backend web development using python and node.js. I also have a good knowledge of MongoDB, MySQL and Redis. My other speciality is developing web scapers for big amounts of data. Strong experience in implementation, testing, development, and maintenance of applications. Effective in working independently and collaboratively in teams.

    $22.22 /hr
    0 hours
    4.22
  2. Oleg Burca

    Oleg Burca

    System, Network and Hosting administrator. Wordpress Specialist.

    Moldova - Tests: 5 - Portfolio: 2

    Hi, I am Linux and Windows administrator, with more than 8 years experience. Currently I'm working as DevOps specialist and SysAdmin for a development company. We create websites, online shops, APIs, applications and much more. I manage about 50 virtual and dedicated servers hosted on AWS, in our DataCenter and all around the world, runing on Windows Server 2008/2012 and Linux Ubuntu/Debian/CentOS. Most of them are Web Servers, but there are also DataBase servers, Mail, FTP and Application servers. Previously worked as engineer in a hosting company and was responsable for installing new services, configuring hosting servers, backup configuration, monitoring and clients support. Managed about 70 servers. I have good network administration skills and a lot of experience with WordPress. Worked a lot wit different panel for hosting, billing, datacenter administration, virtualization, VoIP and other. Latest year, most of projects managed by were hosted on AWS (Amazon Web Services). I am familiar with technologies, the abbreviations of names of those could scare many people: RDS, EC2, Reserved Instances, ELB, SES, SNS, AMI, IAM, S3, VPC, Elasticache, Route53, CloudWatch and others. I can help you plan, configure, scale, monitor, reduce costs of your AWS services. So, what can I do for you?! * First of all I can setup for you a Web Server. IIS on Windows, or Apache/Nginx on Linux. It can be also a mixed configuration with Nginx as frontend and apache for backend. It can be proxy, caching or load balancing configuration. Configure SSL certificates. * I can setup a mail server based on Postfix/Dovecot with antispam and antivirus functionality, with SSL/STARTTLS security. You will be able to use a webmail or dedicated client. * I can setup a File/FTP/WebDav server. * I can setup a MySQL server with PHPMyAdmin. * I can setup a backup solution for your server(s). * I can setup a DNS Server and solve all messing with domains and records for different purposes. * I can setup a virtualization server. * I can setup VoIP server (based on Asterisk/FreePBX). Configure trunks, extensions, conferencies and caller groups. * I can setup a Firewall or/and Gateway server, routers and switches. * I can setup or improve security for your server(s). * I can help you design scalable and reduntant cluster for web, database or application. * I can configure hosting services on AWS, estimate and optimize costs (Most experienced with EC2, RDS, ELB, Route53, SES, SNS). * I can setup Windows Exchange server. * I can setup Windows SharePoint server. * I can configure any business services offered by Google, Microsoft, Yandex or other. * I can migrate your site(s) to another hosting account or server. * I can improve your WordPress website performance and secure it. * I can assist or train you on all stuff about.

    $27.78 /hr
    0 hours
    5.00
  3. Muhammad Usama

    Muhammad Usama

    Solver

    Pakistan - Tests: 2 - Portfolio: 4

    Over the last 4 years, I have developed many Desktop Applications for Windows in C# .Net, and also some in Java, C++ and some Kernel programming in C on a Linux System, for the clients and in studies. Have worked in core PHP and Wordpress as well. Currently I am working on an Web Based Institutional Repository (DSpace) which uses JSP and JAVA. My core competency lies in making a perfectly working system taking care of small details. I am seeking opportunities to build a solution for you. I also have some experience in the following areas: Javascript, Web Scrapping and Automation, Android, UI Designing, Java, MYSQL, MS SQL Server, PostgreSQL, MATLAB, Data Analysis and Data Cleaning,

    $6.00 /hr
    0 hours
    5.00
  4. Dejan Noveski

    Dejan Noveski

    Software engineer

    Macedonia - Tests: 3 - Portfolio: 1

    I’m a passionate software engineer of 6 years, with knowledge and experience in prototyping, developing and deploying web applications, web services and platforms powered by the popular Python frameworks - Django, Flask, or PHP and PHP frameworks. I also have considerable experience - Building standalone desktop applications, utilities, system and automation tools. - Building mobile web services with offline support, syncing and data packaging to preserve bandwidth efficiency. - Implementing enterprise-level search and matching engines with Apache Lucene / Solr. - System administration and bash scripting. I work very quickly and go to considerable lengths to ensure that every job I undertake is delivered to my clients’ complete satisfaction. I’m constantly learning, and I’m always interested in taking on new challenges. Whatever your software needs are, I’m confident I can help you. References available. Specialties: Python, Django, Flask, Werkzeug, Pylons, SQLAlchemy, HTML, HTML5, CSS, CSS3, JavaScript, PHP, Solr, Lucene, Apache, Nginx, PostgreSQL, MySQL, Linux/FreeBSD administration, Web services, GIS, Geocoding, Vim, VimL, Git, Mercurial.

    $33.33 /hr
    1 hours
    5.00
  5. Oleh K.

    Oleh K.

    C# Developer

    Ukraine - Tests: 5

    Hi. My name is Oleh. I love to solve problems and create architectures that prevent them. I'm driven, if not obsessed, by solving different technical challenges. When I don't have one to solve at work, I invent them on the side to keep my development skills sharp and give myself a reason to get out of bed, or even sometimes stay up all night. I have good experience in: - Desktop development on WPF and Windows Forms; - Web development on ASP.NET/ASP.NET MVC; - Metro development (Windows 8 apps); - Have good database knowledge (SQL Server, MySQL, SQLite etc) and ORM (Entity Framework); Feel free to contact me if you need help implementing your next idea using cutting-edge technology.

    $14.99 /hr
    0 hours
    5.00
  6. Aleksandr Kritsin

    Aleksandr Kritsin

    I am an android developer

    Russia - Tests: 4 - Portfolio: 9

    I am an Android developer with over 5 years of experience working with various technologies. I have spend more than 3 years working on Mobile Application Development. I have over 10 apps in Google Play. I have developed utility, social, enterprise, forums, etc... I have worked with apps requiring different technologies and skill sets. I have used backend integration with REST service as well direct DB calls, Geo location, Geo fencing, Payment integration, Facebook integration, and lot of other technologies in my apps. I am an individual Developer. Tools and Technologies Android SDK, Eclipse, Facebook SDK, Google Map SDK, Google Cloud Messaging Languages -Core Java, C, CPP, JavaScript, PHP, Oracle PL/SQL, SQL, MySQL, HTML

    $18.00 /hr
    0 hours
    4.87
  7. Bhavin M.

    Bhavin M.

    8+ Years of experience, Expert iOS/Android/.Net Developer

    India - Tests: 1 - Portfolio: 9

    My name is Bhavin Mistry & I am a results-oriented individual with expertise in mobile application development, web-based applications development & business management. I possess the strong leadership, decision-making, problem solving, interpersonal & time management skills to make a project happen on time & on budget. I bring around synergy between technology and business growth requirement. Development calls for harnessing great technology & building strong relationships. A career enriched with domain & IT experience, I am an IT Managed Services Specialist and Project Manager with a proud, extensive background in delivering projects on time and on budget and providing technology solutions that help businesses excel. I am an accomplished navigator of the fast changing priorities of IT, projects, and operations. I achieve objectives through teamwork, excellent communication, and stakeholder management. I believe that Projects and Operations must co-exist and cooperate seamlessly only then true return on investment (RoI) of IT assets can be ensured. This is possible through structured frameworks and using best practices that only an experienced project management professional knows. Through various assignments listed below, my learning can be summarized as - Optimized operations ensure stability, efficiency, proactive risk mitigation and readiness for future. It's possible to achieve this and have played active roles in making this happen. I add value to any endeavor through my wide knowledge and experiences as well as my interpersonal skills that empower team to create success. During my career span, I have graduated from transactional to more strategic responsibilities successfully and the journey continues.

    $15.00 /hr
    0 hours
    4.55
  8. Lai Tash

    Lai Tash

    Python developer

    Russia - Tests: 3

    Hello and thanks for your interest in my profile. I've started my programming path in mid 90th, starting from atari and msdos programming. Approximately five years ago i've turned my face on Python, which now became my prefered programming language and the one i have the most experience with, both in desktop and web development.

    $20.00 /hr
    396 hours
    4.94
  9. Leonid Sydorenko

    Leonid Sydorenko

    MQL4, C#, SQL, MS ACCESS - Expert, developer and just a good guy.

    Ukraine - Tests: 1

    I am team leader of small group developers in IT company. We specialize at creating expert advisors at MQL4/5 and C based trade platforms, C# applications, SQL and MS ACCESS databases, SharePoint projects. Have more than 5 years of professional experience in creating expert advisor At MQL4/5 and C based trade platforms , C# applications, SQL and MS ACCESS databases. And more than 3 years of professional experience in SharePoint Development, Configuration and Administration, Office 365 Development.

    $45.00 /hr
    158 hours
    4.87
  10. Yan Chumak

    Yan Chumak

    Android Programmer - Java, C/C++, JS, PHP

    Ukraine - Tests: 4 - Portfolio: 7

    I have four years of experience developing on Java/C++/C/PHP, have excellent skills such as Javascript / JQuery / HTML / CSS. All of my project is successfully finished and now use by people, some of them you can see follows with link (https://play.google.com/store/apps/developer?id=M2M+Ukraine+Ltd). Just have a good experience in writing an android application with the use by NDK. Developing backend server multithreading applications using C/C++/Java(Servlets), possibly as a bunch of android application + backend. Some time working on a web project using JS/PHP. In my spare time I develop network applications under UNIX systems, for fun. I also have some experience in the following areas: SQL, Ajax, OOP, pattern design and software design.

    $8.89 /hr
    17 hours
    5.00