Experience

cat ~/.experience

Software Engineer

@ Yolda Technology

Nov 2024 — Present · Istanbul, Türkiye

▸ Developed and automated a distance-based fleet fuel management system using TypeScript, Java and AWS services, preventing fraudulent fuel requests and saving the company $110k+ USD annually.
▸ Built out 30+ AWS Lambda services (300+ functions) using TypeScript, Java, and Go, migrated legacy projects, reducing cold start latency by 40% and lowering execution costs.
▸ Scaled our serverless REST APIs (API Gateway + Lambda) to handle 1M+ daily requests while maintaining high availability and low latency during peak traffic.
▸ Built a real-time fleet tracking platform by streaming GPS hardware data through a message broker to backend services, providing logistics teams with live vehicle monitoring and operational visibility.
▸ Boosted MongoDB query performance by 3× through indexing and query optimization, enabling near real-time updates for dashboards used by 50+ operations staff, and implemented centralized logging and monitoring with CloudWatch Logs Insights, reducing production issue resolution time by 50%.
▸ Configured VPC networking for Lambda services and setup VPN connectivity to the database layer, enabling Lambda-to-database communication within a private network.
▸ Contributed to frontend dashboards built with React and TypeScript, implementing new features and improvements for internal operations tooling.

Java TypeScript Go AWS Lambda API Gateway MongoDB CloudWatch VPC

@ Cosmios Software Academy

Mar 2024 — Nov 2024 · Adana, Türkiye

▸ Mentored 15 aspiring engineers in Backend Architecture and Git, enforcing industry standards for clean code, SOLID principles, and documentation.
▸ Designed and delivered a curriculum covering RESTful API design, PostgreSQL, and Docker containerization.
▸ Conducted PR reviews for student projects and implemented automated unit testing.
▸ Led workshops on Gitflow, merge conflicts, CI/CD pipelines, Linux fundamentals, and Bash scripting for automation.

PostgreSQL Docker REST API Git Linux Bash CI/CD

@ Dogus Teknoloji

Jun 2023 — Jan 2024 · Istanbul, Türkiye

▸ Built RAG-based generative AI assistants using LLMs, enabling users to query document collections via a Streamlit interface instead of manually scanning sources—reducing HR workload by 15%.
▸ Designed an ML interface that generated 10+ unique visualizations as part of automated HTML reports for diverse analytical use cases.
▸ Developed 5+ Python API scripts to optimize LLM prompts by trimming unnecessary tokens before processing, cutting token costs by 30%.
▸ Trained time series models on AWS SageMaker, built dynamic ETL pipelines, and deployed production DAGs on Apache Airflow.

Python LLM RAG Streamlit AWS SageMaker Apache Airflow ETL

@ Jotform

Jun 2023 — Aug 2023 · Istanbul, Türkiye

▸ Dove into 10+ datasets with exploratory analysis and statistical techniques to surface anomalies and hidden patterns in Tableau.
▸ Built a demand forecasting model with Facebook Prophet and brought the results to life using Seaborn and Plotly—hitting 88% forecast accuracy.

Python Tableau Facebook Prophet Seaborn Plotly EDA Statistical Modeling