Mert is available for hire

Mert Arisoy

Verified Expert in Engineering

Full-stack Engineer and Developer

Amsterdam, Netherlands

Toptal member since July 13, 2022

Expertise

Back-end Developers GitHub Java C#.NET SQL Git CSS Angular JavaScript Oracle Development Spring Boot Twitter Bootstrap Node.js React.js

Bio

Mert is a full-stack engineer with more than six years of experience in various technologies. His expertise is primarily in developing back-end services for web or mobile applications with C# and Java. Curious and creative, Mert is also interested in developing mobile applications. Having worked in different domains with various technology stacks, he can quickly adapt to new working environments.

Portfolio

Tesla

.NET 7, RabbitMQ, API Integration, C#.NET, Angular, C#, .NET, GitHub

Cern

Java, Oracle, Spring Boot, React, Docker, Apache Tomcat, Keycloak...

Print Melon

.NET Core, Azure Functions, Azure WebJobs, Azure Queue Storage, Shopify API...

Experience

Back-end Development - 7 years
Java - 5 years
JavaScript - 4 years
C#.NET - 4 years
Spring Boot - 3 years
.NET Core - 2 years
React - 2 years
TypeScript 3 - 2 years

Availability

Part-time

Preferred Environment

JetBrains, MacOS, Windows 10

The most amazing...

...application I've developed was awarded first place in a hackathon, and it allows customers to transfer second-hand vehicles in the most secure and fastest way.

Work Experience

Full-stack Software Engineer

2023 - PRESENT

Tesla

Provided scalable business solutions, software design, and development to support HR operations for all EMEA.
Designed and developed multiple vendor integrations to support payroll processes and employee benefits.
Collaborated with multiple teams in different regions and supported new joiners.

Technologies: .NET 7, RabbitMQ, API Integration, C#.NET, Angular, C#, .NET, GitHub

Full-stack Software Engineer

2020 - PRESENT

Cern

Developed an applicant tracking system that integrates with SmartRecruiters and allows administrators to automatize their hiring processes.
Provided third-line support to the business by investigating, solving, and delegating their problems with over 20 mid-size complex applications with various technologies and environments.
Created Docker scripts to make applications ready for the CI/CD pipelines.
Built DevOps infrastructure for multiple projects using GitLab.

Technologies: Java, Oracle, Spring Boot, React, Docker, Apache Tomcat, Keycloak, OpenID Connect (OIDC), SAML, PL/SQL, Jira, Bamboo, Activiti BPM, Camunda BPM, TypeScript 3, JavaScript, Scrum, Unit Testing, REST, SQL, Git, Node.js, HTML, CSS, Back-end Development, GitHub

Freelance Full-stack Developer

2020 - 2021

Print Melon

Migrated a .NET framework 4.7 project that processes Shopify orders, gets payments via the PayPal REST API, and publishes products to Shopify .NET Core using Azure Functions.
Developed and maintained new API endpoints for web clients with the fully integrated process with Shopify.
Developed the CI/CD infrastructure from scratch using Azure Pipelines.
Rewrote the PayPal integration for payment processing.
Optimized image processing and improved performance by 50 per cent.

Technologies: .NET Core, Azure Functions, Azure WebJobs, Azure Queue Storage, Shopify API, Azure DevOps, Scrum, eCommerce, B2B, REST, SQL, Git, HTML, CSS, PayPal API, PayPal, Back-end Development, Shopify Theme, C#, Azure, .NET, GitHub

Back-end Engineer

2019 - 2020

Commencis

Developed highly scalable, thread-safe middleware endpoints consumed by mobile and web clients for one of the biggest airline companies in Turkey.
Built and maintained API endpoints for banking middleware with over 100 million customers.
Improved overall code quality score from F to A based on the SonarQube analysis.
Upgraded Java version 1.6 to 1.8 and some of the other application dependencies.

Technologies: Java, Spring Boot, Ant Design, Apache Maven, Jenkins, Swagger, Hazelcast, Docker Compose, Scrum, Unit Testing, REST, SQL, Git, Back-end Development, GitHub

Full-stack Developer

2015 - 2019

KoçSistem

Implemented nine-box, self-service, day-off, and onboarding modules for a human resource web application called HrEdition. HrEdition is currently used by over 15 big-scale companies and integrated with SAP. It supports desktop and mobile browsers.
Developed a learning portal that allows employees to have online courses and admins to assign courses to employees, track the learning process, and get comprehensive reports and statistics.
Established direct contact with the customers for first-line support.
Analyzed and documented business requirements to create work items.
Used the Scrum and Agile framework and Atlassian tools for a middle-sized team.

Technologies: C#.NET, Microsoft SQL Server, Entity Framework, AngularJS, Bootstrap 3+, SAP, Azure DevOps, Scrum, REST, SQL, Git, HTML, CSS, C#, ASP.NET MVC, Back-end Development, Angular, .NET, GitHub

Experience

Wally

https://apps.microsoft.com/store/detail/wally-unsplash-wallpapers/9NKCCCWD3RZ0?hl=en-us&gl=US

Wally allows you to change wallpaper and lock screen images with high-quality Unsplash pictures. The application can work in multiple windows environments, including PCs, tablets, and more, using the Universal Windows Platform (UWP). I developed and deployed it to the Microsoft Store.

Application Tracking System

This applicant tracking system integrates with SmartRecruiters and allows administrators to automatize their hiring processes. The administrators can also set candidates' statuses, prioritize, or hire them.

Repofac

Repofac allows users to share their GitHub repurchase agreement (repo) via a shareable link without allowing collaboration access. It's useful when they want to deliver code in interviews. I developed and deployed the whole application myself.

Education

2011 - 2016

Bachelor's Degree in Computer Engineering

Izmir University - Izmir, Turkey

Certifications

JANUARY 2020 - JANUARY 2022

Associate Cloud Engineer

Google Cloud

Skills

Libraries/APIs

React, Node.js, Entity Framework, Shopify API, PayPal API

Tools

GitHub, Git, Apache Tomcat, Keycloak, Apache Maven, Jenkins, Docker Compose, JetBrains, Visual Studio, Jira, Bamboo, Camunda BPM, RabbitMQ

Languages

Java, C#.NET, HTML, C#, TypeScript 3, JavaScript, SQL, CSS, SAML, SCSS

Frameworks

.NET, Spring Boot, Swagger, Bootstrap 3+, .NET Core, ASP.NET MVC, Angular, Ant Design, AngularJS, Activiti BPM, Hibernate, OAuth 2, .NET 7

Paradigms

Azure DevOps, Scrum, Unit Testing, B2B, REST, Object-oriented Programming (OOP)

Platforms

Oracle, Docker, MacOS, Windows, Azure Functions, Universal Windows Platform (UWP), Shopify, Azure

Storage

Google Cloud, Hazelcast, Microsoft SQL Server, PL/SQL, Azure Queue Storage, Spring Data JPA

Other

Back-end Development, eCommerce, SAP, OpenID Connect (OIDC), Azure WebJobs, Data Structures, Algorithms, Background Threading, APIs, PayPal, Shopify Theme, API Integration, Windows 10

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