Trendyol Data Talent Bootcamp

Engineer Volunteer

High School Diploma

Computer Science

- Created a CRM system for the company with several features such as Development Process, Receipts, Contact Information, Messages, Website Information, etc. (PHP, JQuery, HTML5, CSS)
- Developed various websites for customers with WordPress for 3 weeks. (E-commerce, Bussiness, Media, etc.)
- Developed a calculator for customers to calculate how much their website costs. (JQuery, HTML5, CSS)

Web Developer

Co-Founder & CEO

• High-throughput backend services in Spring (Java) backed by MySQL, Cassandra, and Redis for a top- grossing mobile game platform.
• Service-to-service communication over Apache Kafka and gRPC.

Backend Engineer

- Worked on route validation system against impact threats for UAV systems.
- Used Python and various Python libraries such as GDAL in algorithms and code.
- Manipulated geoTiff files.
- Involved and was the lead engineer in creating the API for the system with Flask.

Software Engineer Intern

- Backend Engineer for the customer experience dashboard website of Roche.
- Contributed to the backend system using the Spring framework in Java, and leveraged AWS for cloud computing.

Digital Tech Developer Analyst

- Developed the new website of IEEE Bilkent with React.js in the front-end, Django.py at the back-end, and SQLlite database.
- Involved in the Schedular project for Bilkent University's schedule system with Vue.js.
- Developed the GRC2020 website with HTML5, CSS, JavaScript at the front-end and created a sign-up and log-in system for graduates to upload their projects with PHP at the backend with MySQL database.
- Managed the Debian 7 server of the ieee.bilkent.edu.tr system.

Webmaster

- Was the back-end engineer of the intern project team, was also involved in front-end.
- The project was creating comments and feedbacks for an online pdf editor.
- Used PHP language in the back-end side of the project for creating API’s.
- Managed the MySQL database.
- Used React TypeScipt framework in front-end side.

Full Stack Developer Intern

- Worked on MySQL and queries.
- Involved in Database designing projects for various customers.
- Studied on Angular.js.

Database Developer

- Involved in various activities such as VOL-E-19 (a volunteering engineering project for high school students at Yozgat), Uçan Süpürge - Engineering for Young Girls (an education project for juvenile girls), Internship Abroad (Conferences about doing an internship abroad)

Active Member

• Contributed to the Checkout and Tax organization as part of an Away team, designing and shipping backend systems that processed production traffic at scale.
• Designed and implemented an end-to-end data migration system on AWS, leveraging DynamoDB, EC2, ECS, Lambda, S3, SQS, SNS, DLQ, and IAM to move production data safely and reliably across services.
• Developed and operated backend services across multiple Checkout and Tax projects using Java (Spring) and Clojure, integrating with AWS infrastructure throughout the stack

Software Development Engineer

• Worked as a backend support engineer, resolving production issues across the stack.
• Fixed bugs in PHP backend services and React.js/TypeScript frontend components.
• Led backend development for an intern team project: a commenting and feedback system for an online PDF editor, building PHP APIs and managing the MySQL database.

Junior Software Engineer

• Architected and shipped a multi-tenant AI SaaS solo from zero to 1000+ users and 30+ payed customers; 5 services, ~23K source files, React 19 + FastAPI + a forked Flowise (Node.js) agent- orchestration engine.
• Engineered a production hybrid RAG pipeline that fuses Qdrant vector search (OpenAI 1536-dim embeddings) with BM25 lexical retrieval via a custom Reciprocal Rank Fusion ranker, ingesting 7 source types (text, files, URLs, Q&A, Google Docs, Notion, web scrape) through an async BullMQ queue with exponential-backoff retries.
• Built a model-agnostic generation layer spanning 4 LLM providers (OpenAI, Anthropic/Claude, Gemini, Grok), 6+ image models and 4 video models via Fal.ai, and realtime voice over WebSockets using the OpenAI Realtime API with server-side VAD and PCM16 streaming.
• Cut LLM spend through model routing (Opus to Sonnet to Haiku) and prompt caching while holding output quality, instrumented with per-request token-cost tracking dashboards.
• Deployed on AWS (ECS F

Founding Engineer (Co-Founder)

https://www.toptal.com/developers/resume/ege-hakan-karaagac

Full Stack Artificial Intelligence Developer

Building kodwai, where you get scored on how well you drive your AI agent

Know about Ege Hakan Karaağaç's work experience, education, and much more. Ege Hakan Karaağaç