Erhan Yaylalı

Dec 2024 – to Present

1 yr 11 mos

Istanbul, Turkey

• Building data-driven analytics dashboards for an enterprise client's internal platform on AWS, with all infrastructure provisioned as code through Terraform.
• Running a fully cloud-native, serverless architecture: AWS Glue ETL jobs, Amazon S3 data storage, Amazon Athena queries, AWS Lambda functions and managed authentication.
• Delivering containerized Node.js services and an Angular frontend with Docker, keeping environments consistent from development to production.

• Node.js
• Angular
• Docker
• Terraform
• AWS

Jul 2022 – to Dec 2024

2 yrs 5 mos

Odense, Denmark

• Improved clients' search engine visibility by building fast, accessible and SEO-optimized web pages with semantic markup and a strong focus on Core Web Vitals.
• Wrote maintainable, scalable frontend code to a high quality standard, raising user experience and long-term sustainability across client projects.
• Advised clients on their digital roadmaps: analysed existing problems, balanced budget and scope, and proposed technical solutions that fit their business goals.

Dec 2021 – to Jul 2022

7 mos

Istanbul, Turkey

• Built a company intelligence platform from the ground up on Google Cloud Platform, owning both the Node.js backend and the React frontend.
• Designed the data model in Firebase Cloud Firestore to store rich company profiles — founding date, CEO and leadership, headcount, revenue and other firmographic data.
• Integrated external data sources to enrich company records on demand, combining stored data with live lookups for a complete, searchable company profile.

• Node.js
• React
• Google Cloud Platform
• Firebase
• Firestore

Jul 2021 – to Dec 2021

5 mos

Istanbul, Turkey

• Developed banking applications end to end, with React on the frontend and Java Spring services on the backend.
• Wrote comprehensive unit tests to keep code quality and reliability high in a regulated financial environment.
• Integrated the bank's proprietary internal tools and frameworks into new features, following enterprise banking standards.

• React
• Java
• Spring
• Unit Testing

Feb 2021 – to Jul 2021

5 mos

Gebze, Turkey

• Developed an internal HR management tool that streamlined human resources workflows and reduced manual work for HR teams.
• Built the backend with .NET and C# and the user interface with React, delivering features across the full stack.

• .NET
• C#
• React

Sep 2020 – to Dec 2020

3 mos

Istanbul, Turkey

• Built a virtual trade fair platform where companies could host online exhibitions and live-stream events to their visitors.
• Focused on the frontend, developing interactive, responsive React interfaces for virtual booths and live broadcasts.

• React

Jul 2020 – to Aug 2020

1 mo

Istanbul, Turkey

• Used IBM Cloud services to add monitoring, control and automation to the training process of language-model-based AI systems.

• IBM Cloud
• AI / Machine Learning