Furkan YAGBASAN
Verified Expert in Engineering
Back-end Developer
Ankara, Turkey
Toptal member since September 26, 2022
Furkan is a back-end engineer with over six years of experience designing robust server architectures and offering consultation on system scalability and best practices. He has helped teams modernize infrastructure, enhance performance, and improve development workflows. Furkan brings a strong engineering mindset that supports both execution and strategic decision-making.
Portfolio
Experience
- Python - 6 years
- REST APIs - 5 years
- Amazon Web Services (AWS) - 2 years
- AI Chatbots - 1 year
- Agentic Frameworks - 1 year
- AI Agents - 1 year
- Claude - 1 year
- OpenAI Agents SDK - 1 year
Preferred Environment
MacOS, Slack, Jira, GitHub
The most amazing...
...consulting work I've done improved a startup’s 3rd-party API integration, enabling greater management of millions of CRM records.
Work Experience
Back-end Developer
Crea
- Built and maintained a production-grade CAPTCHA security platform composed of multiple microservices; served as the primary client point-of-contact and ensured smooth delivery and ongoing reliability.
- Developed a large-scale mobile ads crawling pipeline processing millions of records daily, delivering clean ETL data into the analytics warehouse powering customer dashboards.
- Led a 1–5 engineer team to build an AI-powered meeting agent; acted as the stakeholder-facing technical lead driving roadmap, execution, and delivery.
- Refactored and redesigned a client’s CRM integration pipeline handling millions of CRM records, significantly improving reliability, maintainability, processing efficiency, and real-time data experience.
- Designed and implemented an AI agent platform that allows users to query connected data sources in natural language and generate insights, reports, charts, and dashboards using advanced agentic workflows.
- Delivered an AI-driven knowledge-base system enabling users to upload documents and interact with them conversationally using RAG pipelines and multi-agent orchestration.
Software Engineer
ASELSAN
- Developed embedded software and microservices on RTOS.
- Collaborated with different engineering teams synchronously on a daily basis.
- Contributed to several projects with a waterfall model with strict specifications.
- Developed monitoring applications with Qt Creator.
Software Engineer (Intern)
ASELSAN
- Developed a desktop app to visualize and debug missile telemetry data.
- Debugged and improved data flow between electronic components.
- Integrated temperature sensor to missle head setup and visualize real time data on mission control UI.
iOS Software Engineer (Intern)
Arçelik
- Developed and maintained iOS mobile applications for IoT devices.
- Tracked and fixed bugs using Jira as a reporting tool.
- Used AWS cloud services, such as Amazon S3, with mobile applications.
Experience
CAPTCHA Security Platform
https://www.leminnow.com/Role: Lead back-end engineer and client point-of-contact
Mobile Advertisement Web Crawling
https://www.mobileaction.co/app-ad-intelligence/Role: back-end engineer and data pipeline developer
AI-powered Meeting Agent
https://spiky.ai/Role: lead engineer (team lead of 1-5) and stakeholder contact
Natural-language Data Insights Agent Platform
https://nuans.aiRole: senior AI/back-end engineer
RAG-based Knowledge-base Q&A System
Education
Master's Degree in Computer Engineering
Middle East Technical University - Ankara, Turkey
Bachelor's Degree in Computer Engineering
Middle East Technical University - Ankara, Turkey
Skills
Libraries/APIs
REST APIs, Python API, Flask-RESTful, API Development, OpenAI API, AWS Amplify, HubSpot API, Zoho API, Pipedrive API, Salesforce API, Shopify API, Stripe, Stripe API, Node.js, Slack API
Tools
GitHub, PyCharm, Slack, Jira, RabbitMQ, Git, AWS Cloud Development Kit (CDK), Claude, ChatGPT, MATLAB, Visual Studio, Grafana, Graylog, Docker Swarm, Postman, Jenkins, Celery, Amazon Simple Queue Service (SQS), AWS Command Line Interface (CLI), AWS CloudFormation, Amazon CloudFront, n8n, Subversion (SVN), Amazon CloudWatch
Languages
Python 3, Python, C++11, SQL, Embedded C++, Swift 3, JavaScript
Platforms
Linux, MacOS, Amazon EC2, Docker, Amazon Web Services (AWS), Unix, iOS, AWS Lambda, Heroku, AWS Elastic Beanstalk, Zoho CRM, CapRover, HubSpot, Salesforce
Frameworks
Flask, Selenium, Agentic Frameworks, Qt, NestJS
Paradigms
Agile Software Development, Microservices
Storage
Database Management, Redis, MySQL, Amazon S3 (AWS S3), PostgreSQL, MongoDB, InfluxDB, Amazon Aurora
Other
Code Review, Debugging, Data Structures, Software Engineering, APIs, Data Scraping, API Integration, CAPTCHA, Website Data Scraping, Mathematics, Statistics, Operating Systems, Algorithms, OpenAI, AI Agents, ChatGPT API, OpenAI SDK, Chatbots, AI Chatbots, OpenAI Agents SDK, Machine Learning, Amazon RDS, Web Scraping, Back-end, Artificial Intelligence (AI), Discrete Mathematics, Computer Architecture, Linear Algebra, Networking, Data Management, Logic Design, Embedded Systems, Quantum Computing, Deep Learning, Image Processing, Neural Networks, Cloudflare, Agentic AI, Agentic RAG Systems, CRM APIs, HubSpot CRM, Retrieval-augmented Generation (RAG), CRM Implementation (Salesforce), Pipedrive, AWS X-Ray, Slack App, AI Model Integration, LightRAG, Customer Relationship Management (CRM), Large Language Models (LLMs)
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