Yashar is available for hire
Hire YasharYashar Aliabbasi
Verified Expert in Engineering
C# Developer
Istanbul, Turkey
Toptal member since March 28, 2022
Bio
Yashar is an experienced IT professional with a passion for learning and over 10 years of experience writing enterprise-grade distributed applications that address real-world problems. Most of his work involves leading technical teams, creating accessible development environments, fixing the technical debt, providing best practice code examples, and mentoring developers.
Portfolio
Patika Global Technology
C#, Microservices, Redis, RabbitMQ, SQL, Docker, Jira, REST APIs...
Dtech Software
C#, SQL, PostgreSQL, Jira, .NET Core, .NET, GraphQL, RESTful Services, Agile...
Shoniz
C#, .NET, SQL, SignalR, .NET Core, VB.NET WinForms, RESTful Services...
Experience
- C# - 10 years
- SQL - 7 years
- Redis - 6 years
- Microservices - 5 years
- Test-driven Development (TDD) - 5 years
- GraphQL - 3 years
- MongoDB - 3 years
- RabbitMQ - 3 years
Work Experience
Team Leader
2021 - PRESENT
Patika Global Technology
- Converted a PHP application to .NET and redesigned it using a microservice architecture, leading to a 100% increase in security and 300% faster performance, enabling the application to handle four times as many requests.
- Developed and optimized the front-end part by replacing complicated SASS classes with Tailwind CSS and Formik for validation.
- Designed and implemented an ordering application that can communicate with Android and iOS apps through the SignalR library with thousands of users.
- Designed and built a brand-new framework based on the latest .NET technologies for the company, which is used in two enterprise projects.
Technologies: C#, Microservices, Redis, RabbitMQ, SQL, Docker, Jira, REST APIs, RESTful Web Services, RESTful Microservices, .NET Core, RESTful Services, Agile, OOP Designs, RDBMS, Web App Design, C#.NET, MongoDB, SQL Server 2012, JavaScript, Test-driven Development (TDD), TypeScript, React, Web Development, SignalR, API Integration, APIs, MySQL, Node.js, .NET, Full-stack, ASP.NET, Bootstrap, .NET Framework
Senior Software Engineer
2019 - 2020
Dtech Software
- Redesigned an ordering program to avoid using a licensed library and save over 40% of the budget.
- Analyzed and implemented the Kolaykampus application, which is a learning website with millions of users based on the ABP Framework. I introduced the BFF pattern with Ocelot to a company that had this project.
- Worked on a legacy front end that was refactored to use React, which was developed with jQuery, resulting in 50% faster debugging and 70% faster product development cycles.
- Reported service feedback for the petrol company with a photo gallery that stores its history. The front-end components were refactored, and the UI's speed increased by 35%.
Technologies: C#, SQL, PostgreSQL, Jira, .NET Core, .NET, GraphQL, RESTful Services, Agile, OOP Designs, RDBMS, Web App Design, C#.NET, RESTful Web Services, RESTful Microservices, REST APIs, Docker, SQL Server 2012, JavaScript, Microservices, Test-driven Development (TDD), Web Development, TypeScript, React, SignalR, API Integration, Python, APIs, MySQL, Node.js, Full-stack, ASP.NET, Bootstrap, .NET Framework
Senior Software Engineer
2014 - 2020
Shoniz
- Analyzed and developed a work-order application integrated with other applications like warehouses and HR systems.
- Integrated the company's web services with integrated mobile sales management systems (IMSM).
- Used Jira and TFS to track and fix bugs. All issues were written into the log's database.
- Reduced or eliminated all the paperwork that existed before. As a result, orders were better tracked across the company and issues could be communicated instantly.
- Used APIs to exchange data with other server management systems.
Technologies: C#, .NET, SQL, SignalR, .NET Core, VB.NET WinForms, RESTful Services, OOP Designs, RDBMS, Web App Design, C#.NET, Windows Forms (WinForms), RESTful Web Services, RESTful Microservices, REST APIs, SQL Server 2012, JavaScript, Web Development, React, VB.NET, API Integration, Python, APIs, NoSQL, Node.js, Full-stack, ASP.NET, Bootstrap, .NET Framework
Senior Software Developer
2012 - 2014
TakroSystem
- Participated in the development of new features for Takro's accounting software.
- Developed an installer application that works on the server and the client.
- Debugged current accounting applications and supported them.
Technologies: C#, VB.NET, Windows Forms (WinForms), VB.NET WinForms, SQL, .NET, RESTful Services, OOP Designs, RDBMS, Web App Design, C#.NET, RESTful Web Services, RESTful Microservices, REST APIs, SQL Server 2012, JavaScript, Web Development, APIs, NoSQL, ASP.NET, .NET Framework
Project History
Online Learning Platform
https://www.kolaykampus.com/An online learning platform based on .NET that serves millions of students and teachers. The App Store uses progress and acquired scores and provides conditional promotions to users based on their progress.
Gas Station Reporting Tool
A .NET React-based application whose primary duty is gathering periodic information about stations and their guest rooms of clients to provide better services.
More than 10 branches of this station use this application each month, producing hundreds of reports.
More than 10 branches of this station use this application each month, producing hundreds of reports.
Education
2008 - 2012
Bachelor's Degree in Software Engineering
Payam Noor - Tabriz
Certifications
JANUARY 2021 - PRESENT
MongoDB for .NET Developers
MongoDB University
MAY 2018 - PRESENT
Certified on SQL Server
Sololearn.com
MAY 2018 - PRESENT
Certified on Javascript
Sololearn.com
MAY 2018 - PRESENT
Certified on C#
Sololearn.com
Skills
Libraries/APIs
React, SignalR, Node.js, REST APIs, Windows Forms (WinForms)
Tools
RabbitMQ, Jira
Languages
C#, SQL, C#.NET, JavaScript, VB.NET, GraphQL, TypeScript, Python
Frameworks
.NET, .NET Core, ASP.NET, Bootstrap, VB.NET WinForms
Paradigms
Web App Design, Test-driven Development (TDD), Microservices, Agile, REST
Storage
MySQL, Redis, RDBMS, PostgreSQL, NoSQL, MongoDB, SQL Server 2012
Platforms
Docker, Android
Other
RESTful Services, OOP Designs, Web Development, APIs, Full-stack, .NET Framework, Freelancing, API Integration, RESTful Web Services, RESTful Microservices
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