Ahmet Furkan DEMIR — Data & Platform Engineer

About Me

Data and Platform Engineer passionate about modern data, cloud, and infrastructure technologies. Designs and manages real-time data pipelines with Apache Flink, Spark, and Kafka, writes advanced queries using Trino and Druid, and optimizes ETL pipelines with Apache Airflow.

Builds, manages, and scales containerized systems using Kubernetes, Docker, and GitLab CI/CD. Applies a DevOps mindset to ensure secure, high-performing CI/CD processes, automated infrastructure, and reliable distributed systems.

Develops microservices and data processing solutions using Python and Java.

Age25
ResidenceTurkey
FreelanceAvailable
Addressİstanbul, Ataşehir, TR

Resume

Experiences

Mar 2026 – Present

Data and Platform Engineer

Burgan Bank ·Istanbul, Turkey

Burgan Bank Turkey and ON Digital Banking are financial institutions operating in the Republic of Turkey.

Design and setup of an ETL-based Medallion architecture using Spark, dbt, and Airflow.
Designing and deploying a development environment using Coder, Harbor, Terraform, and Nexus, and providing and distributing the development environment for users.
CI/CD infrastructure setup on OpenShift using Azure DevOps and ArgoCD.
Configuration of Trino/Starburst and S3/MinIO management. Installation and management of data engineering tools such as Airflow, Spark, and OpenMetadata.
Use of ClickHouse and RisingWave for high-performance analytical queries, real-time data processing, and running data analysis and querying workflows in streaming data scenarios.

My skills I use

Apache Spark
dbt
Apache Airflow
Trino
OpenShift
Data Engineering
Platform Engineering
ETL
Medallion Architecture
Lakehouse
Data Transformation
Workflow Orchestration
Starburst
Distributed SQL
S3
MinIO
Object Storage
OpenMetadata
Data Catalog
Metadata Management
ClickHouse
OLAP
Analytical Queries
RisingWave
Streaming SQL
Stream Processing
Real-time Data Processing
Container Platform
Azure DevOps
ArgoCD
GitOps
CI/CD
Terraform
Infrastructure as Code
Coder
Cloud Development Environments
Harbor
Container Registry
Nexus
Artifact Management
Developer Experience
Banking
FinTech

Aug 2023 – Mar 2026

Data and Platform Engineer

nesine.com ·Istanbul, Turkey

Data Engineering

Experience with Hadoop, HDFS, Spark (PySpark & Scala), Flink, Druid, Trino, Iceberg, Hive Metastore
ETL & CDC: 20+ batch/streaming pipelines (Kafka → S3/Kafka), Airflow DAG orchestration, Flink jobs
Migration & Optimization: Ambari → CDP, CDP → Kubernetes; improved Lakehouse read performance by ~45%
Dashboarding: Superset, Pivot; made 10+ data sources accessible to multiple teams

DevOps & CI/CD

Kubernetes cluster setup, maintenance, scaling, security, GPU node integration
CI/CD: GitLab, ArgoCD, Kaniko; end-to-end pipeline design for Python & Java projects
Containerization: Docker, Harbor (security scan, backup, LDAP), Nexus, Helm (4+ charts from scratch)
Monitoring: Prometheus, Grafana, Loki → managing logs & metrics for 20+ services
Secrets & Security: Kubeseal, LDAP/AD integration

Platform Engineering

Managed Kafka, Flink, Druid, Trino clusters (HA, scaling, monitoring, ingestion)
Scalable storage & replication with MinIO (S3)
PostgreSQL, MySQL, MSSQL installation & management
Enabled 60+ users to access S3 (Iceberg) via CloudBeaver
Deployed DS models as prod-ready APIs using FastAPI (tested for millions of users)
Built crawler & brute-force detection systems
Supported LLM/RAG projects (architecture & deployment)
Dockerized DS projects & automated Kubernetes deployment via CI/CD

My skills I use

Apache Kafka
Apache Flink
Apache Spark
Trino
Kubernetes
Hadoop
HDFS
PySpark
Scala
Apache Druid
Apache Iceberg
Hive Metastore
Lakehouse
CDC
ETL
Batch Processing
Stream Processing
Apache Airflow
S3
MinIO
Ambari
Cloudera CDP
Data Migration
Performance Optimization
Apache Superset
Imply Pivot
GPU Nodes
High Availability
GitLab CI/CD
ArgoCD
Kaniko
Docker
Harbor
Nexus
Helm Charts
Prometheus
Grafana
Loki
Kubeseal
LDAP / Active Directory
PostgreSQL
MySQL
MSSQL
CloudBeaver
FastAPI
Python
Java
Web Crawling
Brute-force Detection
LLM / RAG

Jan 2023 – Aug 2023

AI and Backend Engineer

TEXINSIGHT ·Istanbul, Turkey

TEXINSIGHT / Newky — AI-based photo and video analyzing mobile apps and a platform to increase the productivity of companies.

Building an architecture and managing the DevOps process with Docker Swarm
AI model building with TensorFlow Lite and deploying to Android devices with Flutter
Liveness detection
CloudFlare API and domain configuration
License management automation for companies

My skills I use

Python
TensorFlow
PyTorch
FastAPI
Docker Swarm
Backend Development
Software Architecture
Computer Vision
Image Analysis
Video Analysis
TensorFlow Lite
On-device AI
Liveness Detection
Flutter
Android
Mobile Apps
Docker
DevOps
PyQt5
Desktop Apps
Django
Flask
REST APIs
WebSockets
gRPC
AWS Lambda
AWS S3
AWS RDS
AWS EC2
Serverless
Cloudflare API
DNS & Domain Configuration
License Management
Automation

Jun 2022 – Jul 2023

Founder

SoftForRange ·Konya, Turkey

A formation created to meet the software needs of businesses and companies in all provinces in Turkey, especially in Konya.

My skills I use

Python
Flask
FastAPI
Java
Spring
Entrepreneurship
Custom Software
Web Development
Backend Development
Web Scraping
BeautifulSoup
Selenium
JavaScript
jQuery
HTML
CSS
WordPress
Oracle Cloud
Oracle Compute
AWS
AWS EC2
AWS S3
Amazon SageMaker
Amazon MSK
AWS Lambda
Amazon API Gateway
Amazon DynamoDB
Amazon RDS
Ubuntu Server
PostgreSQL
Microsoft SQL Server
Cloud Deployment

Jun 2022 – Sep 2022

Software and AI Engineer

Coredinat UK ·Sheffield, England, UK

AI (Emotion Detection)
AI (Determination of positive and negative in sentences)

My skills I use

TensorFlow
PyTorch
OpenCV
Natural Language Processing
Emotion Recognition
Artificial Intelligence
Deep Learning
Python
Computer Vision
Sentiment Analysis
Text Classification

Coredinat UK

Jan 2022 – Jun 2022

Software Engineer

İkonik Technology & Coredinat

Automatic and high-accuracy recording to the system by extracting information from business cards — Python Flask API, Google Tesseract OCR and Regex.
Work and task distribution application with CRM automation within the company — Python Flask, HTML, CSS, JavaScript and PostgreSQL.
Customer integration with Java Spring, Confluent and Kafka.

My skills I use

Python
Flask
Google Tesseract OCR
Java
Apache Kafka
Flask API
REST APIs
OCR
Information Extraction
Regex
Business Card Recognition
Data Entry Automation
CRM
Business Process Automation
Task Management
HTML
CSS
JavaScript
PostgreSQL
Microsoft SQL Server
Spring
REST
Confluent
Debezium
CDC
Event Streaming
System Integration
Docker
Linux (Ubuntu)

İkonik Teknoloji

Feb 2022 – Nov 2022

AI Developer

brAIn

brAIn team is a team of young physicians and engineers operating in the field of Artificial Intelligence in Health.

My skills I use

YOLOv5
TensorFlow
PyTorch
OpenCV
Object Detection
Artificial Intelligence
AI in Healthcare
Interdisciplinary Teamwork
Data Science
Machine Learning
Deep Learning
Image Processing
Data Preprocessing
Computer Vision
TensorFlow Object Detection API
NVIDIA CUDA
GPU Computing
Teknofest

Aug 2021 – Dec 2021

Software Engineer

AiArtMarketPlace

Blockchain and AI developer.

My skills I use

Blockchain
Solidity
Smart Contracts
Artificial Intelligence
Data Engineering
Data Science
Machine Learning
Deep Learning

Jun 2021 – Aug 2021

AI Engineer Intern

MOVE ON ·Istanbul Technopark

A company in Istanbul Technopark where I did my summer internship.

Presentation on how Flask applications can be deployed over the AWS Elastic Compute Cloud (EC2) service.
Work on pose estimation and a Medium article about it.
Workshop “Getting Started with AI on Jetson Nano” for other interns.
Website made with Python Flask to distribute TensorFlow 2 Object Detection API models.
Application developed with the TensorFlow 2 Object Detection API to detect and censor unwanted, immoral images.

My skills I use

TensorFlow 2
TensorFlow Object Detection API
YOLO
Pose Estimation
Flask
Deep Learning
Machine Learning
Computer Vision
Image Processing
Object Detection
Content Moderation
Python
Model Deployment
AWS
AWS EC2
NVIDIA Jetson Nano
Edge AI
Qt UI Design
Technical Writing
Workshops
Presentations

Jan 2021 – Jun 2021

Reinforcement Learning Intern

Reinforcement Learning Türkiye

During the internship, we tried to develop an autonomous drone project.

Path Planning presentation prepared by the team.
Presentation of the CARLA simulator for autonomous vehicles.
TensorBoard online.
Creating an interfaced environment on Google Colab and running the CARLA simulator on it.

My skills I use

Deep Reinforcement Learning
Double Deep Q-Networks
CARLA Simulator
Ray
Path Planning
Reinforcement Learning
Autonomous Drones
Autonomous Driving
Unreal Engine 4
Simulation
Python
TensorBoard
Google Colab
Microsoft Azure
Presentations

Jan 2021 – Jun 2023

Jetson AI Specialist and Ambassador, DLI University Ambassador

NVIDIA

Became an ambassador to teach and introduce NVIDIA technologies and AI to university students.

Within the Jetson AI Specialist program, forwarded projects and code written with Jetson Nano to NVIDIA and was awarded the Jetson AI Specialist title and certification.
Became an Ambassador to introduce and teach Jetson and Artificial Intelligence to more people.

My skills I use

NVIDIA Jetson Nano
CUDA
NVIDIA NGC
Transfer Learning Toolkit 3.0
Deep Learning
Edge AI
Embedded AI
Transfer Learning
Docker
Python
C++
Machine Learning
Image Processing
Image Classification
Robotic Coding
NVIDIA DLI
Teaching
Workshops
Ambassador Program

Sep 2019 – May 2022

Founder

demir.ai

My company that I founded to work in the field of AI.

My skills I use

Python
TensorFlow
PyTorch
Keras
OpenCV
Entrepreneurship
Artificial Intelligence
Machine Learning
Deep Learning
Data Science
Data Engineering
Natural Language Processing
Computer Vision
Java
C/C++
MediaPipe

Volunteer Experiences

Oct 2021 – Jan 2023

AWS Community Builder

Amazon Web Services

The AWS Community Builders program offers technical resources, mentorship, and networking opportunities to AWS enthusiasts and emerging thought leaders who are passionate about sharing knowledge and connecting with the technical community.

My skills I use

AWS
Cloud Computing
Technical Community
Mentorship
Networking
Knowledge Sharing
Technical Content

Apr 2022 – Oct 2022

Huawei Student Developers Campus Ambassador

HUAWEI

Became an ambassador with the aim of teaching Huawei technologies to university students.

My skills I use

Huawei Technologies
Campus Ambassador
Developer Community
Teaching
Developer Relations

Certificate

Aug 2021 – Oct 2021

Istanbul Data Science Program for Social Good — Teaching Assistant

Kodluyoruz

Supported the instructor giving the course and helped students by answering their questions.

My skills I use

Data Science
Data Science for Social Good
Teaching Assistance
Student Support

Kodluyoruz

May 2021 – Oct 2021

Data Science for Public Good — Mentorship

Kodluyoruz

Mentored students in Data Science and Python throughout the program, including their graduation projects.

My skills I use

Mentorship
Graduation Projects
Python
Data Science
Machine Learning
GPU-accelerated Data Science
NVIDIA CUDA
RAPIDS
cuML
CuPy
cuDF
Kaggle

Apr 2020 – Feb 2021

AI Talent Programme Member

Deep Learning Türkiye

Within the AI Talent Programme we build projects with our friends and give presentations on various topics to the group.

My skills I use

Deep Learning
Keras
TensorFlow
TensorFlow Object Detection API
Object Detection
Team Projects
Presentations
AI Talent Programme

Nov 2020

Unlimited Talent Program Member

Turkcell

A one-week program at Turkcell: a virtual tour of Turkcell Plaza, Turkcell Academy trainings in cooperation with MIT, workshops, award-winning project competitions and meetings with the Turkcell senior management team.