Koray is available for hire

Koray Kural

Verified Expert in Engineering

Software Developer

Location

Istanbul, Turkey

Toptal Member Since

June 8, 2022

Koray, a final year computer science student at Istanbul Technical University, has been interested in web development for three years now. He has developed several personal and freelance projects using multiple technologies. Koray specializes in back-end development with JavaScript frameworks.

Back-end Full-stack Node.js JavaScript TypeScript Git REST APIs SQL Express.js MEAN Stack Tailwind CSS Data Scraping TypeORM PostgreSQL CSS

Portfolio

Whitesand

NestJS, PostgreSQL, TypeScript, APIs, Git, TypeORM, Jest...

Online Freelance Agency

Angular, TypeScript, Node.js, JavaScript, APIs, Stripe API...

Teamfluencer

TypeScript, MongoDB, APIs, NoSQL, Git, Amazon Web Services (AWS), Back-end...

Experience

TypeScript - 3 years PostgreSQL - 3 years JavaScript - 3 years Node.js - 3 years Angular - 3 years MongoDB - 2 years TypeORM - 1 year NestJS - 1 year

Availability

Part-time

Preferred Environment

Visual Studio Code (VS Code), Slack, MacOS

The most amazing...

...thing I've developed is ituprogram.com, my first real-world project at the beginning of my career that helped many students at my university.

Work Experience

Junior Back-end Developer

2021 - PRESENT

Whitesand

Developed new features for an existing SaaS project.
Maintained the existing codebase to improve code quality and reliability.
Used Jira, Slack, and Sococo to facilitate communication among teams and team members.
Performed peer code reviews to help seniors spend more time on other tasks.

Technologies: NestJS, PostgreSQL, TypeScript, APIs, Git, TypeORM, Jest, Amazon Web Services (AWS), Back-end, Cloud, REST APIs, ChatGPT, SQL, Express.js, Full-stack, Amazon Elastic Container Service (Amazon ECS), Containerization, Multitenancy, API Integration, Amazon RDS, Jira, Amazon Simple Queue Service (SQS)

Full-stack Web Developer

2020 - 2021

Online Freelance Agency

Developed an app for users to create listings that other people can bid on.
Built an eCommerce front end to an existing back end using Angular.
Developed scraper bots for multiple golf course websites that can fetch golf tee times and make reservations automatically.
Built a Chrome extension tool that makes charts fullscreen on a trade review website.
Built a SaaS platform with file sharing, accounting, and project collaboration apps.

Technologies: Angular, TypeScript, Node.js, JavaScript, APIs, Stripe API, Front-end Development, Tailwind CSS, React, NoSQL, Git, CSS, Material UI, Jest, Puppeteer, HTML, Data Scraping, Amazon Web Services (AWS), Back-end, Cloud, REST APIs, SQL, Express.js, MEAN Stack, Full-stack, API Integration, Angular Material, AngularJS

Senior Back-end Developer

2019 - 2020

Teamfluencer

Developed a back-end API for a marketing startup from scratch.
Managed an intern to help me with the development process.
Managed DevOps to deploy both the front and back ends and used many AWS services.
Wrote integration and unit tests to maintain a higher quality.
Integrated payment methods to receive payments from companies and distribute them to influencers.

Technologies: TypeScript, MongoDB, APIs, NoSQL, Git, Amazon Web Services (AWS), Back-end, REST APIs, Express.js, MEAN Stack, Mongoose, AWS Lambda

Experience

Sorting Algorithms Visualizer

https://sorting-algorithms.vercel.app

I developed this straightforward Angular project when I was learning Angular. It does not showcase my skillset perfectly, but I like it as it reflects my engineering perspective. It is a sorting algorithm that allows choosing a selection sort.

Education

2017 - 2022

Bachelor's Degree (Ongoing) in Computer Engineering

Istanbul Technical University - Istanbul, Turkey

Skills

Libraries/APIs

Node.js, REST APIs, Stripe API, React, Puppeteer

Tools

Git, Mongoose, Slack, Figma, ChatGPT, Amazon Elastic Container Service (Amazon ECS), Jira, Amazon Simple Queue Service (SQS)

Frameworks

Tailwind CSS, Express.js, Angular, NestJS, Material UI, Angular Material, AngularJS, Jest

Languages

JavaScript, TypeScript, HTML, SQL, Python, CSS, C++

Paradigms

MEAN Stack

Platforms

MacOS, Amazon Web Services (AWS), Visual Studio Code (VS Code), AWS Lambda, Heroku

Storage

MongoDB, PostgreSQL, NoSQL

Other

Back-end, Full-stack, TypeORM, APIs, Front-end Development, Data Scraping, API Integration, Engineering, Programming, Cloud, Containerization, Multitenancy, Amazon RDS

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