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  • $42 hourly

    • 5.0/5
    • (187 jobs)
    I can't say for sure but I have the impression that very few people (if any) in the IT field have read the "Message to Garcia" by Elbert Hubbard. I have read it and I dare to consider myself one of the people, who are able to "bring the message". There always will be someone who is more creative, knows more or works faster than me. I am aware of that and I accept it. Still, I am quite confident of being a better prepared professional than the average IT guy. I have 20 years of experience in programming, database modelling, system design and architecture, business processes analyses and automation, basic managerial accounting, Linux and network administration, Asterisk (FreePBX) configuration. I have successfully solved various business-related software and hardware challenges. Being able to combine both low-level and high-level allows me to work on wide range of tasks. I have reverse engineered and fully decompiled about a dozen Delphi components and desktop applications. Assembler was my 2nd language (after BASIC) and my first significant application was a player for tracker music entirely written in Assembler - with bass/treble digital filters. I like digging deeper and understanding the root cause. I am quite good at debugging and troubleshooting - and this is not an empty claim. Some of my achievements: - developed 2 full-blown ERPs (for Walltopia and Composite-X) - developed 2 accounting / warehousing applications with OLAP reporting and hierarchical multi-dimensional accounts - developed Windows service daemon for logging Skype chats to a REST API in real-time - ported one large desktop application (Interactive Delphi Reconstructor) from Borland CBuilder to Delphi - implemented a company-wide real-time backup solution using Yadis or Bvckup, Samba and NappIT on OpenIndiana - developed Linux daemon for controlling large LED strips based on WS2811 (and organized into X/Y matrix) through TCP/UDP socket - developed combined CDR reporting, matching information from the local Asterisk PBX with billing information from the VoIP providers - implemented Linux daemon for reading SMDR/CDR data from Panasonic PBX TDA-200 and storing in MySQL with reporting capabilities - developed custom reporting module for a 3rd party security access control system and integrated it with the in-house ERP system I choose my clients as carefully as you choose your freelancers. I value honesty, respect, good communication, good sense of humor, intelligence, modesty, kindness, generosity. I prefer to develop from scratch custom business solutions automating the workflow of small businesses. My previous experience with the 2 ERP systems I already developed (and which are used 24/7 by customers and employees) is of enormous benefit. I feel truly happy when I am able to help a client by removing the burden and simplifying the workflow. What can you expect from me: - educating and explaining the things which are too technical and unfamiliar to you - asking good questions - providing meaningful advises and recommendations - not trying to suck additional money by finding extra work of low business value - understanding your real business needs and goals - keeping you from making worthless or unwise expenses - excellent responsiveness - taking precautions against damaging your data - really listening to you and your problems/pain points - acknowledging my faults - enjoying good jokes - not quietly disappearing after faced with some tough challenge - honestly admitting when I do not know something or not being qualified enough - not over-complicating the solution - being available for support and further assistance after the final deployment - solving difficult problems - positive skepticism - breadth of knowledge - ability to “finish” - introspective, self-motivated to constantly improve - perseverance, scrappy in the face of setbacks, doesn’t “get blocked” - systems design ability - empathy for users - taking pains to write readable and maintainable code - methodical and analytical: can diagnose the most mysterious bugs or find the source of performance bottlenecks
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    HTML
    Vuetify
    ERP Software
    Database Design
    Vuex
    Business Analysis
    Vue.js
    SQL
    JavaScript
    Tailwind CSS
    RESTful API
    PostgreSQL
    Quasar Framework
    Software Debugging
  • $50 hourly

    • 4.9/5
    • (84 jobs)
    I am committed and dedicated to my works and to my clients. My rules are i) Client satisfaction is the key to success, ii) Design everything before implementation and iii) Write good code with proper documentation. But I believe in exception and every rule has an exception. I have 16+ years of experience with C++/Qt/QML/iOS/Android, C#/VB/.NET/Xamarin/iOS/Android, etc. I do also code in Node.js, Go and MongoDB for server/backend and API stuff. I have also achieved the 'Digia Certified Qt Developer' and 'Digia Certified Qt Specialist' certifications.
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    QML
    Node.js
    Xamarin
    .NET Core
    ASP.NET Core
    XAML
    Android App Development
    Blazor
    iOS Development
    C#
    C++
    Microsoft SQL Server
    MongoDB
    Microsoft Visual Studio
    Qt Framework
  • $50 hourly

    • 4.7/5
    • (33 jobs)
    o More than 12 years of Software engineering experience using Microsoft technologies to develop Web and Windows based application, with strong analytical skills and a broad range of computer expertise. o An excellent problem-solver, able to quick grasp complex systems and identify opportunities for improvements and resolution of critical issues. o Dynamic and committed in continue gaining knowledge of the business domain and latest technologies o Excellent team player, skilled in enlisting the support of all team members in aligning with project and organizational goals.
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    Microsoft SQL Server
    Unit Testing
    XAML
    .NET Core
    Microsoft Silverlight
    AngularJS
    Microsoft Outlook Development
    VBA
    jQuery
    Windows Communication Foundation
    ADO.NET
    Entity Framework
    ASP.NET MVC
    Windows Presentation Foundation
    C#
  • $45 hourly

    • 4.7/5
    • (6 jobs)
    Welcome! Let me introduce myself, my name is Umberto Giacobbi and I was born in Italy, now living in south east Asia, I am a senior IT professional with 23 years of experience on the Microsoft/.net ecosystem. I I start as a developer on the Microsoft web environment, in its infancy, but since 2007 I expand my interest into other areas than pure development and I start to design and guide the development of complex software projects in conjunction with all the relevant stakeholders. I am the founder and CEO of Giacobbi Studio, a development studio located in northern Italy recently relocated in southeast Asia. For me the highest priority given to quality and in time delivery. I’m used to technologies and tools like GIT, Mercurial, the Visual Studio/Azure stack, Node.js, .net Core, OpenSilver, Avalonia, Agile development, AWS, VSTO, InVision even the Arduino IDE is on the list (for IoT). Fluent in English and Italian language. As a developer first, I have created and supervised a number of projects from small company websites/applications to large warehouse management systems, including their integration with different system in a cohesive ecosystem, including the integration with other third-party system. After as my career grow, I became CTO of different startups across two continents (US/EU, and now also the SEA area). I am particularly interested in long-term collaborations with clever & fair customers concerned with quality software development. Contact me any time, I will reply ASAP (definitely in 24 hours).
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    Agile Software Development
    Microsoft SQL Server Programming
    Arduino
    jQuery
    Adobe Photoshop
    Adobe Fireworks
    CSS
    .NET Core
    XAML
    ASP.NET
    ASP.NET Web API
    Windows Presentation Foundation
    Microsoft SQL Server
    C#
    Git
    Microsoft Visual Studio
    .NET Framework
  • $37 hourly

    • 4.9/5
    • (31 jobs)
    Desktop applications with .NET Winform, WPF, JavaFX Embedded Systems, ARM Cortex-m mcus Front-end applications on embedded systems FreeRTOS, LwIp, Stm32, Opencv Backend Development ASP .NET, nodejs
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    Raspberry Pi Firmware
    Reverse Engineering
    STM32
    C#
    Embedded System
    OpenCV
    C++
    C
    Java
    .NET Framework
  • $63 hourly

    • 5.0/5
    • (1 job)
    Experienced Software engineer in Software life cycle, design & development, Research & development, Embedded systems, Real-time-applications, Network protocols & socket programming (telecom), Object-oriented design & writing components, OS internals & Kernel modules, Modular/procedural approach, OOAD/OOP, IPD- CMM process, Project & product lifecycle, Image processing, video processing & 3D under Robotics, Embedded systems & Real-time-applications under Semiconductor ATE, Telecom & networking domains IT skills Operating Systems: Linux/Unix, VxWorks, RT-Linux, QNX, FreeRTOS. Programming: C, C++, core Java, Assembler, C# Scripting : Tcl/TK, Python, Ruby Tools & SW packages: Wind river Workbench, Simics, Rational Rose ClearCase, UML, Subversion, Tornado IDE, JDBC, CVS, lint, Bugzilla, Valgrind, Callgrind, Kachegrind, slick edit, Source Insight, Coverity, MS-Office, Visio, MS- Project, Eclipse, PCANView, Grafana, OpenTSDB, Picoscope, Octave Others: TCP/IP, CAN, fieldbus, Ethernet/IP, V-model approach, IPD-CMM level 5, Agile based iterative process.
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    Socket Programming
    TensorFlow
    Multithreaded Programming
    Real-Time Operating System
    Data Science
    XML
    Machine Learning
    Linux
    Standalone Application
    C++
    C#
    MySQL
    Python
    .NET Framework
    C
  • $185 hourly

    • 4.8/5
    • (41 jobs)
    California-based programmer with an extensive background in a variety of technologies, including desktop, mobile, and web platforms. I deliver high quality software by communicating with my clients effectively and working tirelessly to understand their exact needs for a project. With a thorough analysis of the problem and an effectively designed solution, I'm able to leverage years of independent software experience to implement and deliver your product quickly and effectively. I graduated from Santa Clara University with a Master's degree in Software Engineering in 2012, and have spent the last decade working with clients all over the Silicon Valley area. Here on Upwork, I've achieved and currently hold the Top Rated, Top Rated Plus, and Expert-Vetted talent badges - which are the highest the platform offers. I've also acquired AWS certifications in a variety of disciplines, all of which contribute to my broad understanding of technical domains and enhance my ability to design and implement effective solutions tailored to your project's needs. I strive to delight my clients with every project I undertake, and I would love to do the same for you. Please reach out if you have any questions!
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    Smart Contract
    Cryptography
    Blockchain Development
    Cryptocurrency
    Solidity
    Blockchain Architecture
    API
    Amazon Web Services
    JSON
    C++
    Python
    JavaScript
    Desktop Application
    API Integration
  • $50 hourly

    • 5.0/5
    • (25 jobs)
    During the last ten years of professional working experience, I gained a full understanding of the life cycle of software development. In software development process I tend to maximize attention to details and efficiency. With help of proven frameworks, UML tools, diagrams, design patterns and SDLC concepts I keep enhanced control over the development process and ensure that quality solutions meet business objectives. My core competency lies in the world of desktop applications using WPF and Winform technologies and web applications using Node JS, React JS and ASP.Net Web API. I love to do my work right and really enjoy being respected for the things I do. As a 24/7 hardworking professional with experience in various programming fields. I feel very proud to present myself and my skill-sets in one of the world’s best online-working marketplace. I pay special attention to the code readability and expansibility. I like to produce good, bug-free code and software. I don't only help my clients with developing new applications I also refactor their old code which was ignoring the best practices and optimize the applications. My job success rate is 100% and I am a top rated upwork developer because I always stick to deadlines I always deliver I have excellent communication skills I'm almost always available for clients via Skype I care about clients satisfaction so never hesitate to go an extra mile to meet their business needs
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    .NET Core
    Microsoft SQL Server Programming
    SAP Crystal Reports
    Visual Basic
    Desktop Application
    Windows Presentation Foundation
    ASP.NET
    Bootstrap
    C#
    ASP.NET MVC
    ADO.NET
  • $60 hourly

    • 5.0/5
    • (12 jobs)
    Welcome to my profile! I’m a mobile and cross-platform development expert with more than 10 years of experience in the field. I am keen on cutting-edge technologies and helping businesses achieve their objectives. But, as a technical expert, I also embed my unique approach to working with clients: Solid requirements analysis and elicitation - Offering at least a couple of project scope realization options - Visualization of the possible technical strategy in a format of a demo - Enhancing your feature list with additional functionalities - Addressing timeline and budget constraints with a minimum efficient scope realization Recently I’ve been involved in a bunch of cross-platform researches as a part of my core expertise to stay in touch with new technological insights and keep my professional expertise up to the industry best practices. Besides these, here is a list of bells and whistles I can also provide: Technologies: - Mobile OS: iOS, Android, Windows Universal - Platforms: Flutter, PhoneGap, Cordova, NativeScript, ReactNative - Languages: JavaScript, TypeScript, Dart Domains: - Retail - Construction and Real Estate - Aviation, Tourism, Travel - Entertainment and Social networking - Marketing and Advertising - Fintech - Insurance - Engineering and Industrial - eCommerce - HoReCa - Transport&Logistics Project types: - Mobile application - Standalone module, Framework, SDK - Proof of Concept - Companion mobile app (to comply with an existing web/desktop software) - Demo I’m open to both consultancy and development opportunities. Feel free to get in touch with me and my team if you want to discuss a mobile application idea, I am sure I will have valuable and interesting ideas to share with you!
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    Mobile App Development Consultation
    Mobile Operating System
    Mobile App
    Node.js
    Solution Architecture
    Angular
    React
    Cross Browser & Device Compatibility
    JavaScript
    Mobile App Development
    Hybrid App Development
    NativeScript
    Flutter
    React Native
    Android
  • $45 hourly

    • 4.9/5
    • (8 jobs)
    15-year experienced independent software developer contractor specializing in Microsoft .NET, cloud, and modern web frameworks. Enjoy working directly with technical/business owners or collaborating with other consulting firms to provide end-to-end solutions to technical design and implementation challenges. Professional experience designing and developing systems using C#, ASP.NET MVC, Web API, SQL Server, KnockoutJS, jQuery, Angular, VueJS, etc. Understanding of business and technology topics gained from professional experience assuming multiple roles such as Individual Contributor, Lead Developer, and Systems Development Manager in global technology consulting companies. Extensive experience in automation, API integration, and debugging. Use a wide range of development tools over the years in one form or another and keen to learn your specific tooling, such as in-house or second-party libraries and frameworks. Exposure to large multinational companies and micro startups that operate in HR, Healthcare, Banking, Fintech, Global Payments, Logistics, E-Commerce, IT Consulting, Systems Integration, and Hospitality.
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    API Integration
    Vue.js
    Angular
    ASP.NET Web API
    RESTful API
    Test Automation
    Entity Framework
    Knockout.js
    AngularJS
    jQuery
    JavaScript
    Microsoft SQL Server
    ASP.NET MVC
    C#
    .NET Framework
  • $40 hourly

    • 4.9/5
    • (27 jobs)
    Senior PHP Developer & Architect (15+ Years). TOEFL C1 (July, 2023). Specializations: PHP development (Symfony, Laravel), SaaS development, AI integration, Legacy Code Review & Refactoring, Highload Projects, API Development / 3rd-party API integration. Industry Experience: Education, Financial, Gaming, Social Networking, and Business sectors. Languages / Frameworks / CMS: PHP 8+, Symfony 5/6, Laravel, CodeIgniter, Yii, Kohana, Silex, WordPress, Drupal. Databases: MySQL, PostgreSQL, MS SQL, MariaDB, ElasticSearch, Solr, MongoDB via PHP/Node.JS drivers. Front-End & Scripting: JavaScript (jQuery, Ext.JS / Sencha, Prototype, Angular 12+, React), Node.JS (Express, Mongoose). Optimization & Highload: Experience managing 200K+ hosts/day & 2M pageviews, Memcached, APC, WinCache, PHP performance tuning. APIs & Integrations: OpenAI API, Telegram API, REST, SOAP, RPC, AJAX, Graph API, PayPal, Mandrill, MaroPost, BrainTree, InterSpire, GreenArrow, and more. Miscellaneous: phpExcel, wkHtmlToPDF, Node-FFI, php-FFI, Virtual Buckets sharding. Notable Projects: - Developed a Content Management Framework & Financial Invoice Exchange Engine. - Built a comprehensive Social Network platform, including friend mechanics and personalized newsfeeds. - Created an online dating service, multi-user chat system, and browser-based game. - Designed and supported a high-traffic newsfeed site with an editorial backend. Ethical Stance: I prioritize client data safety and NDA adherence. Consequently, I don't use software like Upwork TeamApp that might compromise sensitive data. Preferred Work Structure: Hourly projects. No fixed-price projects.
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    Amazon
    PHP
    Redis
    Drupal
    WordPress
    MySQL
    MongoDB
    Laravel
    Node.js
    Symfony
    JavaScript
  • $125 hourly

    • 4.9/5
    • (73 jobs)
    I'm an accomplished digital professional with expertise in software design and development. Specializing in creating engaging and impactful media experiences, with a focus on inclusive marketing strategies and custom software solutions. A Wordpress development and UI/UX design expert, as well as skilled in SEO and website development. Experienced in project management, data analysis, and software design methodologies. Dedicated to learning, quality, and delivering exceptional results. Specialties: Software Design, Wordpress Development, UI/UX Design, Digital Marketing, Brand Development, Project Management, Analytics, SEM, Presentations, and Website Development.
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    WordPress Development
    Web Design
    Adobe XD
    Software Design
    Figma
    phpMyAdmin
    User Interface Design
    Page Speed Optimization
    PHP
    WordPress
    JavaScript
    WooCommerce
    CSS
  • $50 hourly

    • 4.9/5
    • (19 jobs)
    I have been working as a senior software engineer for 7+ years. My great mind doesn't like to be lazy. That's why I would like to work on different projects with - More Logics. - New things to research. - Cover multiple areas. I have started to work in Upwork as a freelancer to achieve everything. But now it's my main focus since many excellent client bases exist here with more different ideas to perform with developers like me. And also, I would like to work in a quiet area that does not disturb me from thinking unique logic. I have earned more experience in different areas in my past +7year developer life. - Static Site Development with NextJs - [Nextjs SSR ] - Shopify Development - Shopify Custom Store Development - [Shopify NextJs Custom site] - Squarespace Development - WordPress Development - API Development And Integration - Rest API development with Laravel - Payment Gateway Integration [Paypal, Stripe, NMI, KAK, GreanMoney ACH, + More]. - Marketplace API development. - E-commerce API development/Integration. - WEB3 Integration. - There are many 100+ things done in my past dev life. ->Crypto-Based Developments. - Metamask Integration. - Etherscan API Integration. - Bitpay Integration. -Other API/SDK Developments. - SumSub Integration with Laravel for the KYC verification process. - Uphold Commodity management system. - There are many things, such as Vimeo, OilPrice API, Google API, + more. -UI/UX experience - It is an excellent part. - If we build a mini car with a racing car engine -> buyers don't see the machine, and they don't buy it. - If we build a racing car with a 600CC engine -> buyers don't see the machine, so they buy it. But will be disappointed with the overall bad experience. - If we build a racing car with a racing engine -> buyers will buy and love it. ->So, we must provide a better UI experience with customers' devices. It is one of the basic rules during development. So I have used and got many experiences with lots of libraries while developing better UI. - Bootstrap. - Tailwind CSS. - React. - Ant CSS. - Less, Sass. ->Basic Standards. My focused target is to provide well standard code base with every project. ex-: - PSR2/PSR4 Standards. - Meaning full methods with comments. - Risk-maintained codebase. - lightweight methods and classes. - well-architected development. [So security will not do accounting and only one HR for the entire company]. So My country is Sri Lanka, and my timezone is +5.30GMT. But I'm available for more time the entire day [EST, EDT, CDT, MDT all are welcome]. I have one request for you. Suppose you are going to try to hire me. Yeah, It's best for all of us. So when we start the development, please give me the correct requirement. Then I can provide perfect Output. ✔️ Finally, Thank you very much for visiting my profile.
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    Vue.js
    Stripe
    API Integration
    Tailwind CSS
    Web Design
    CSS
    API
    MySQL
    LeSS Framework
    Ethereum
    JavaScript
    PayPal Integration
    Database Management
    Laravel
  • $60 hourly

    • 5.0/5
    • (40 jobs)
    I am a software engineer with over 10 years of experience in C++ Linux/Unix, Python and C# development. I have experiences in development of applications and software for various purposes including desktop applications, Linux drivers, SDK library, command line tools. I'm a hard working and reliable person always looking to grow my knowledge and learn new technologies and skills. I am improving my knowledge in the field of programming and application development by studying and completing appropriate training courses. I graduated from State Engineering University in Armenia with a Master's degree in Information Technology. Specialties: C++, C, C#, Qt, Python
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    Bash Programming
    Google Chrome Extension
    Qt Framework
    Git
    Apps Script API
    Python
    C#
    C++
  • $350 hourly

    • 5.0/5
    • (100 jobs)
    Industry-Recognized Engineer I Powering iOS, Android, Web & Backend Solutions Among the very & top best engineers out of 300,000 engineers on this platform. Mentioned on Upwork's Q1 Earning Call. Senior iOS, Android, Web & Backend Engineer Expert Vetted, Top Rated Developer Technologies -Swift, Kotlin, React, React Native, Node.JS, Python, TypeScript -AWS & Google Cloud Certified -OpenAI API - LLM - All AI and Diffusion Models Clean Code, Scalability, Organization & Communication - Let's talk about your project! Note because of my demand - I exclusively take projects that align with my vision for engineering brilliance.
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    Roku
    Apple TV Application
    Smart TV
    Figma
    High Fidelity Design
    Java
    Android
    React Native
    Android App Development
    Firebase
    Swift
    Amazon Web Services
    Node.js
    Mobile App Development
    iOS Development
  • $40 hourly

    • 5.0/5
    • (86 jobs)
    Accomplished professional with 20+ years hands-on experience and a background in complex and very large database driven projects design, development, database administration, performance tuning and troubleshooting seeking a challenging position where my experience and skills would be needed. Highly motivated, can do attitude, will happily work alone if required to, good communicator, can mentor and instruct, excellent customer facing skills, ability to estimate and document at all stages of the software lifecycle with a track record for accurate estimations. Able and willing to work overtime if / when needed, have a lot of experience and can work under stress. Motivated hard worker with professional attitude and work ethics.Willing to help, patient with people, constant learner. Excellent team player. All versions of SQL Server from 6.5 (SQL Server 6.5,7,2000, 2005, 2008, 2008R2, 2012,2014), SQL Server Analysis Services, SQL Server Integration Services (versions 2008, 2008R2, 2012), SQL Server Reporting Services (2008, 2008R2, 2012), Data-warehouse, ETL. Expert knowledge of T-SQL language, performance tuning and troubleshooting. Hands-on experience with most of the advanced SQL Server technologies like distributed queries, federated views, partitioned tables, XML and spatial data and many others. Excellent reputation of writing a top quality code, doing other's code review, debugging, fixing and troubleshooting database code. Very good SQL Server DBA skills, hands-on experience with mirroring, clustering, disaster/recovery setups (including complex and world-wide distributed solutions), backups and restores, DB defragmentation, reindexing and much more. Constantly learning «how things work» inside a SQL Server which helps me to design best possible solutions and to make fast, correct and effective desicions under high pressure or time limit.
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    ETL
    Performance Optimization
    Transact-SQL
    Microsoft SQL Server Administration
  • $80 hourly

    • 5.0/5
    • (25 jobs)
    I'm a Software Developer with an emphasis on performance, best practices and testing to create better applications. My experience primarily lies with the Python, JavaScript Programming languages and Django (a Python web framework) as well as a wide range of other tools. Major partners include: - The Motley Fool - Open Technology Fund Remote work culture in companies helps me to work with the engineering teams across the globe like USA, Europe etc. By working with various teams, I learned clear communication and documentation are as important as the code itself. Therefore I always maintain clear communication with team members on my projects. I love to develop things for the web. I have worked on a range of web applications for startups, government, charities and high traffic sites. I like to involve in everything from the overall direction of a project, to design, user experience, and the actual implementation. I enjoy working on open source projects as it helps to give back to the community. I’m passionate about crafting great user experiences. And this influences all of my decisions as I work on a project. TECHNICAL SKILLS ------------------------ - Python backend development: Django, Flask, Wagtail (CMS) - Frontend development: HTML, CSS, Sass, JavaScript, React, Vue.js, Angular 6, Foundation for sites, Bootstrap - Databases: MySql, PostgreSQL
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    React
    Vue.js
    Sass
    CSS
    HTML
    Flask
    CSS 3
    JavaScript
    Django
    Python
  • $18 hourly

    • 4.9/5
    • (22 jobs)
    I have great experience in building as a small and a big distributed high load applications. I can create to you high-quality and stable application using new technologies. Technical skills React | ASP.NET Core + MVC | Blazor | C# | VB | Web Forms | WPF | JSON/REST API |Angular 2+ | Web Services | Micro services | Bootstrap | Telerik controls | Kendo UI | Ionic Framework | Xamarin cross-platform | LINQ | jQuery | JavaScript | Knockout.JS | HTML5 | Bootstrap Database: - SQL Server - No-SQL (Dynamo Db, Azure Cosmos Db and MongoDB) - MySQL - Oracle Db - Ms Access - Compact DB - Entity Framework VERSION CONTROL TOOLS: - SVN - GitHub - Bit Bucket ISSUE MANAGEMENT TOOLS: - Azure Dev Ops - AWS Dev Ops - Atlassian-JIRA - Connect Wise - Wrike DEVELOPMENT TOOLS: Visual Studio 2022
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    React
    Blazor
    Unit Testing
    GitHub
    Microsoft Outlook
    RESTful API
    Windows Presentation Foundation
    ASP.NET Core
    C#
    SQL
    Microsoft SQL Server Compact
    Oracle NoSQL Database
    Azure DevOps
    ASP.NET MVC
    Microsoft IIS
  • $65 hourly

    • 5.0/5
    • (30 jobs)
    Greetings!! 8+ years of Booking/Delivery Applications, Marketing Applications, Financial Applications, Aviation Industry, eCommerce, B2B, B2C, Saas and ERP Products Development Experience. 8+ years of professional experience as a Senior Full Stack Python/Django/Flask Developer & DevOps engineer (Angular/React/Vue/JS) in developing the web application. I have strong OOP skills, deep knowledge in Python and Django framework programming as well as huge experience in database integration and high load optimizations. Here is the list of technologies I use: Languages: Python, JavaScript Server Side: Django Framework, Django Rest Framework, Express Framework, Flask, Laravel, Codeigniter Client Side: jQuery, Angular, ReactJS, VueJs, Bootstrap, Material, Vuetify, Vue Material, bootstrap-vue Database: MySQL, PostgreSQL, MongoDB API Integration: Social Login, Braintree, Strip, Mailchimp Additionally: - Experience scaling and administering full web application stacks - Deploying code and AWS / Managing AWS resources - Hands-on experience with Linux administration and bash scripting - ElasticSearch - Unit-testing/Experience with TDD & BDD - Dev-ops – Puppet/Chef/Ansible/SaltStack - Some experience in Matrix Oriented Programming languages (Matlab) Preferred workflow stack: Trello/Jirra/Basecamp. VCS - Git - GitHub Flow. I find myself a responsible, self-motivated, solution-driven developer and always meet clients expectations in terms of code quality and turnaround.
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    RESTful API
    Python Script
    React
    Laravel
    Relational Database
    Front-End Development
    Vue.js
    AngularJS
    JavaScript
    Amazon Web Services
    Django
    Python
  • $50 hourly

    • 4.4/5
    • (147 jobs)
    Greetings! My name is Sergii, and I’m a Xamarin Certified Mobile App Developer with more than 6 years of experience. I started my way in web and mobile development back in 2012 as a Casual Game Developer working for FIVE-BN (Alawar Division), and gathered some beneficial knowledge on how to create game logic, optimizing game performance, game deployment, and bug fixing. Later on, I have worked as a C# Developer in SoftReactor LLC, where I’ve gained and polished my skills related to ASP.NET Core, C#, MySQL, WPF, XAML. At almost the same time, I’ve started my own company - HeadWorks, where till present days my team and I have been creating web, mobile, hardware (embedded) projects, helping other companies to implement and convert their ideas into reality. In 2014 I’ve discovered Xamarin and incorporated it into what I have been doing - cross-platform mobile applications for iOS and Android. The tech-stack and skills I have acquired: - Cross-platform mobile app development using Xamarin: Xamarin.Forms, Xamarin.Native (Android, iOS), MVVM, Prism, MVVM Cross, MVVM Light, MVVM Fresh, ReactiveUI, AJAX - Creating complex enterprise-level custom solutions using C#, C++, MySQL, ASP.NET MVC, .NET Framework (CLR), .NET Core (CoreCLR), .NET GC, Azure, REST API, Web API, Google Maps API, Twitter API - Front-end development: HTML, CSS, JS, Angular - Facebook SDK, Visual Studio - Version control systems: Git, Github, SVN - iBeacons, Eddystone (estimote, kontakt.io) - Payment processors (Stripe, PayPal, Apple Pay, Webmoney, Yandex.Money) - Analytics and crash analytics (HockeyApp, Microsoft Insights, Firebase) I have recently started acquiring new skills on Objective-C, Swift, Java, Xcode and am planning on concreting the knowledge in the future. I’m open to everything new in the world, love to learn and prove myself, so all your queries and projects are greatly appreciated, and I’m ready to support you around the clock. I’ve been working with both individual clients, private and public companies (enterprise clients) and have helped them to bring their business ideas, thoughts, projects into life. Hesitation is the enemy of success, so send me the message, and let’s get your project into shape!
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    XAML
    Android
    Xamarin
    User Experience Design
    Mobile UI Design
    Mobile Programming
    Mobile App Development
    iPhone App Development
    iOS Development
    C#
    Android App Development
  • $35 hourly

    • 5.0/5
    • (30 jobs)
    I'm Jirayr Full-stack developer with 5 years of experience, during this time I've developed effective software industries such as Health care system, Software As A Service, IOT, and Production Monitoring software. I can proudly state that I have succeeded in all projects and positioned them in high rankings, and now I'm ready to explore new markets.
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    React Native
    CI/CD
    Internet of Things
    Vue.js
    Unit Testing
    Celery
    Software Development
    Amazon Web Services
    Software Architecture & Design
    PostgreSQL
    MySQL
    React
    JavaScript
    Django
    Python
  • $60 hourly

    • 4.7/5
    • (86 jobs)
    10+ years of freelance product & project management for PCB design and layout, firmware programming, and rapid prototyping. Here is a non-exhaustive list of relevant software/protocols/chipsets: - Strong C++, C, and C# - PCB layout and schematic capture with Altium, Cadence, Eagle, etc., with multilayer, flexible, high-speed embedded systems - FPGA programming with Verilog/VHDL: Altera Quartus, Xilinx, iCECube - Experience with low-cost MCU/single-board prototyping platforms: Arduino, Beaglebone, Raspberry Pi, NanoPi, etc. - ARM: ATSAM, STM32, PIC32, A13, FreeScale, MSP, NXP - MPU: Pic33F/18F/16F, Atmega 80251, 8052, 8951, 8051, 16, 32, 128 - Digital interfaces and wireless transmission: UART, I2C, SPI, BLE, BT, GSM/GPRS/GPS, xBee, ZigBee (particular experience with BLE HM10, HC05, ESP32, DA14508, nRF52832, 52840, BlueNRG) I also have a background in mechanical engineering and industrial design; I can implement my work into fully realized products for you. Expect me to help your business as if I am growing my own.
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    Microcontroller Programming
    ESP32
    Core Bluetooth
    Rapid Prototyping
    Power Electronics
    Computer Hardware Design
    Firmware
    ARM Microcontroller
    PCB Design
    Wireless Communication
    LED Physics
    Electronics
    Electronic Circuit Design
    Altium Designer
  • $40 hourly

    • 5.0/5
    • (33 jobs)
    Here's an improved version of your profile description on Upwork: ✅ Top-Rated Freelancer with a proven track record of success. 💻 ✅ Achieved a 100% job success score by delivering exceptional results. 💯 ✅ Received over 10+ ⭐⭐⭐⭐⭐ 5-star reviews from satisfied clients. I am a highly skilled and experienced Senior WordPress Developer with over 7+ years of expertise in WordPress Development. My passion lies in transforming your ideas into fully secured, SEO-friendly, responsive, and interactive WordPress websites. 📁 My extensive experience covers the following areas: - Theme and Plugin Development: Proficient in creating custom themes and plugins tailored to meet your unique requirements. - Premium Theme Development for Themeforest (Envato): Skilled in developing high-quality themes for the popular Themeforest marketplace. - WordPress Deep Optimization and SEO: Expertise in optimizing WordPress websites for improved performance and search engine visibility. - WordPress Security: Ensuring robust security measures to protect your website from vulnerabilities. - WordPress Refactoring: Capable of enhancing the codebase and improving the efficiency and maintainability of WordPress projects. - WordPress Installation, Configuration, Backup, and Migration: Proficient in handling all aspects of WordPress setup and management. - Page Builders (Elementor | Visual Composer / WPBakery | King Composer): Experienced in utilizing popular page builders to create stunning and user-friendly layouts. - ACF | Metaboxes: Skilled in implementing Advanced Custom Fields and metaboxes for enhanced content management. - Woocommerce: Expertise in building e-commerce websites using the powerful Woocommerce platform. - WordPress AMP: Knowledgeable in implementing Accelerated Mobile Pages (AMP) for faster loading on mobile devices. - Gutenberg: Proficient in working with the Gutenberg editor to create engaging and dynamic content. - bbPress / BuddyPress: Experienced in setting up and customizing community forums and social networking sites. - Mailchimp: Capable of integrating Mailchimp for seamless email marketing campaigns. - API Integrations: Skilled in integrating various APIs, such as Amazon Product Advertising API, eBay Browse API, Facebook/Instagram/Twitter/Mailchimp, Google API, Envato API, Unsplash API, Github API, and more. If you have an idea in mind, I am here to listen and bring it to life. Let's discuss your project today! 📩
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    WooCommerce
    Web Development
    WordPress
    Website Optimization
    Plugin Development
    JavaScript
    WordPress Theme
    PHP
    Plugin Installation
    WordPress Malware Removal
    WordPress Development
    Website Customization
    PSD to WordPress
  • $50 hourly

    • 4.4/5
    • (20 jobs)
    Software Engineer with 5+ years of experience in Node.js development. I develop typescript applications and manage deployments and architectures for applications in Cloud. If you are looking for someone who can help you solve your problems within the paradigms of software engineering and software architecture, who can help you push your startup to the next level, you are certainly at the right place. I am up for challenging work and open to adopting new cutting-edge technologies to make your project a masterpiece.
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    Google Cloud Platform
    Serverless Computing
    React
    DevOps
    AWS Lambda
    Amazon Web Services
    Kubernetes
    Docker
    Microservice
    MySQL
    MongoDB
    Database
    JavaScript
    API Development
    Node.js
  • $40 hourly

    • 5.0/5
    • (14 jobs)
    I'm a Unity Developer with 12 years of experience. Lots of experience in developing mobile games from the beginning until the end. Super clean and readable code! Strong points: - Gameplay - SQL (databases) - Bug fixes - Full stack Hit me up, if you are interested or need more information about me!
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    Game Development
    Video Game
    Unity
    Game
  • $40 hourly

    • 4.7/5
    • (14 jobs)
    Experienced Associate Product Manager with over 10 years of experience in IT Industry. Excellent reputation for resolving problems, improving customer satisfaction, and driving overall operational improvements. Consistently saved costs while increasing profits.
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    Windows App Development
    Project Management
    React
    Android
    Angular
    Distributed Computing
    Product Management
    ASP.NET MVC
    ASP.NET Web API
    Microsoft SQL Server
    C#
    .NET Framework
    Solution Architecture
    Agile Project Management
    Scrum
  • $155 hourly

    • 4.9/5
    • (23 jobs)
    **EXPERT VETTED BY UPWORK** Top 1% in Mobile App development, Web development and Blockchain development I lead a small talented team of software engineers and designers. So instead of getting one expert on your team, you will always get a team of experts. Executing greenfield projects is something that we enjoy! I guarantee you: My team will provide the best value that you can find. Why work with me: - My DC-based company OakTreeApps.com is a blockchain-first dev shop using bleeding edge tech stack. - Have successfully launched apps in the marketplace for platforms such as Wellbility & EchoLokal. - Have successfully launched projects in crypto space: KandiKids (kandikids.io/), CosmicUniverse (cosmicuniverse.one/) - Have served as Director of App Development within an upcoming healthcare tech startup. - Mentor at Polygence We are a team with decades of experience working on: || DApps || NFT Marketplace || Social Money 1. Enterprise grade apps 2. Social media apps 3. Multimedia consumption apps 4. Connected car apps 5. Healthcare apps 6. Hyperlocal apps Web 3.0 framework we use: || Solidity, Truffle, Metamask, OpenZeppelin || Web 2.0 tools we use: 1. Kotlin/Java 2. RxJava/RxAndroid 3. Dagger2 4. ViewModel/Databinding 5. Objective-C/Swift 6. RxSwift 7. MVVM/Clean code architecture 8. Laravel/Vue.JS + MySQL/Mongo 9. Flutter/Dart for cross-platform development 10. Cocoapods/YAML/Gradle 11. CI/CD using Jenkins/CircleCI 12. Audio, Video streaming using AVKit/ExoPlayer, etc. 13. APNS/Firebase push notifications/Urban Airship 14. Picasso/Glide/Kingfisher 15. Payment integration using Stripe/PayPal etc. 16. AWS EC2/Amplify/Route 53 17. Firebase using push notification, realtime database, phoneauth & much more! We understand that finding the right candidate for the job can be tedious and stressful. That's why when you choose to work with us, we shall make things as simple and easy as possible, striving hard to provide you with a 100% stress-free experience. Let's have a chat about your product needs, and let us help you grow your business. Thank you!
    vsuc_fltilesrefresh_TrophyIcon Code Refactoring
    React
    Node.js
    Swift
    Apple Xcode
    Android
    MongoDB
    Ethereum
    Kotlin
    Vue.js
    Blockchain Development
    Blockchain
    Smart Contract
    Flutter
    AWS Server Migration
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Code Refactoring Specialists Hiring FAQs
 




What is code refactoring?




Code refactoring is the practice of restructuring your code without changing its functionality, often for the purpose of making it clean, concise, and in accordance with development best practices. A code refactoring specialist can save you the trouble of refactoring your code yourself, giving you more time to focus on development of new features. 




How do you hire a code refactoring specialist?




You can source code refactoring talent on Upwork by following these three steps:


    

  • Write a project description. You’ll want to determine your scope of work and the skills and requirements you are looking for in code refactoring specialists.
    • 

  • Post it on Upwork. Once you’ve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
    • 

  • Shortlist and interview code refactoring specialists. Once the proposals start coming in, create a shortlist of the professionals you want to interview. 
    • 



Of these three steps, your project description is where you will determine your scope of work and the specific type of code refactoring specialists you need to complete your project. 




How much does it cost to hire a code refactoring specialist?




Rates can vary due to many factors, including expertise and experience, location, and market conditions.


    

  • An experienced code refactoring specialist may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
    • 

  • A contractor who is still in the process of building a client base may price their code refactoring services more competitively. 
    • 



Which one is right for you will depend on the specifics of your project. 




How do you write a code refactoring job post?




Your job post is your chance to describe your project scope, budget, and talent needs. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.


Job post title


Create a simple title that describes exactly what you’re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample code refactoring job post titles:


    

  • Need help refactoring Java development code into production-ready code base
    • 

  • React developer needed for code refactoring UI components for production
    • 

  • Refactoring legacy Objective C code into Swift (iOS development)
    • 



Project description


An effective code refactoring job post should include: 


    

  • Scope of work: From technology migrations to production-ready code, list all the deliverables you’ll need. 
    • 

  • Project length: Your job post should indicate whether this is a smaller or larger project. 
    • 

  • Background: If you prefer experience with certain technologies, programming languages, or developer tools, mention this here. 
    • 

  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.
    • 



Code refactoring specialist job responsibilities


Here are some examples of code refactoring specialist job responsibilities:


    

  • Refactor code from development environment into production-ready deployment
    • 

  • Write automated unit, integration, and end-to-end tests
    • 

  • Document all processes and code
    • 

  • Update code from legacy deployments to latest best practices
    • 



Code refactoring specialist job requirements and qualifications


Be sure to include any requirements and qualifications you’re looking for in a code refactoring specialist. Here are some examples:


    

  • Working knowledge of the desired programming language (e.g., C#, Swift, Java, JavaScript)
    • 

  • Experience with target technology ecosystem (e.g., React, Microsoft, iOS, Android)
    • 

  • Application development
    • 



















 

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