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Arzu – Python, AI agent development, LLM, experts in Lemon.io

Arzu

From Poland (UTC+2)flag

Back-end Web Developer|Senior
AI Engineer|Middle-to-senior

Arzu – Python, AI agent development, LLM

Arzu is a senior backend engineer with 8 years of professional Python experience and strong exposure to LLMs, RAG, and fine-tuning workflows. He has delivered production-grade distributed systems, contributed to AI-powered media intelligence tools, and mentored junior developers. Feedback highlights his clear communication, honest self-assessment, and collaborative approach!

8 years of commercial experience in
Adtech
AI
Blockchain
Consumer services
E-commerce
Information services
Embedded software
Main technologies
Python
7 years
AI agent development
3 years
LLM
3 years
LangChain
1.5 years
LangGraph
1.5 years
Additional skills
Typescript
Fine-tuning
Golang
GCP
Direct hire
Possible
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Experience Highlights

Staff Software Engineer
Nov 2023 - Dec 20252 years 1 month
Project Overview

A large-scale Connected Car Platform for a pioneer and global leader in high-definition audio, surround sound, and spatial audio technologies. It provides multi-channel audio solutions used in movie theaters, home audio systems, car stereos, PCs, gaming consoles, and mobile devices.

Responsibilities:
  • Supported and developed the Connected Radio project used by millions of vehicles on a daily basis.
  • Designed scalable, resilient architectures for in-car entertainment systems.
  • Optimized large-scale distributed systems.
  • Ensured seamless integration across embedded and cloud environments.
Project Tech stack:
Python
Golang
Helm
PostgreSQL
RabbitMQ
Kubernetes
Docker
GCP
BigQuery
Make
Monorepo
Builder / Maintainer
Dec 2023 - Dec 20252 years
Project Overview

Open-source Azerbaijani language datasets and language models to advance the Azerbaijani NLP ecosystem.

Responsibilities:
  • Created and curated multiple open-source Azerbaijani datasets for instruction tuning, translation, conversational AI, and language understanding tasks.
  • Built synthetic data generation pipelines to produce high-quality training data with structured metadata and quality controls.
  • Fine-tuned open-source language models to improve Azerbaijani instruction following, translation quality, and conversational capabilities.
  • Designed dataset schemas and annotation strategies for scalable data collection and augmentation.
  • Published datasets and models on Hugging Face to support the Azerbaijani AI and NLP community.
  • Developed data processing and cleaning workflows to improve dataset consistency and training quality.
  • Experimented with retrieval-augmented generation (RAG), synthetic data, and model alignment techniques for low-resource language applications.
  • Contributed to the growth of publicly available Azerbaijani language resources, helping reduce barriers for researchers, students, and developers building AI systems in Azerbaijani.
Project Tech stack:
Fine-tuning
LLM
LLaMA
Unsloth
Python
Senior Python Developer
May 2022 - May 20231 year
Project Overview

E-commerce platforms and internal business tools for clients and cross-functional teams. Contributed to the delivery of an NFT-based e-commerce solution for a client, combining digital asset ownership with online commerce capabilities.

Responsibilities:
  • Actively supported the sales team to drive results.
  • Mentored mid-level and junior developers to enhance their skills.
  • Successfully delivered intricate features for important projects.
  • Additionally, designed and built AI-powered internal tools that improved the efficiency of business analysts.
Project Tech stack:
Python
PostgreSQL
Django
Django REST
Docker
AWS
GCP
LangChain
Maintainer
Dec 2021 - May 20224 months
Project Overview

A Python library for implementing business transactions using the Railway-Oriented Programming approach. It was designed to promote clean architecture principles by separating business logic from framework-specific concerns, enabling more maintainable, testable, and reusable applications. The project also serves as an educational tool, helping developers and students understand domain-driven design concepts, transaction pipelines, and the importance of decoupling core business rules from application infrastructure.

Responsibilities:
  • Built and maintained multiple projects.
  • Designed a framework-independent approach for implementing business transactions and workflows.
  • Promoted clean architecture principles by separating business logic from infrastructure and framework concerns.
  • Developed reusable patterns for validation, error handling, and business process orchestration.
  • Used the library as a teaching tool in coding bootcamps and workshops.
  • Helped students understand Railway-Oriented Programming, clean architecture, and software decoupling concepts through practical examples.
  • Created documentation and sample projects to simplify adoption and learning.
Project Tech stack:
Python
Senior Python Developer
Apr 2021 - Apr 20221 year
Project Overview

Custom software solutions across multiple projects, including a social platform for the German market that enabled users to discover, organize, and receive invitations to private home parties.

Responsibilities:
  • Developed back-end software for clients using AWS, PostgreSQL, Django, Redis, and Celery.
  • Worked as a Senior Python Consultant across multiple client engagements through the platform.
  • Designed and developed backend services and APIs using Django.
  • Built mobile application features using React Native for cross-platform delivery.
  • Collaborated with product owners, designers, and engineers to translate business requirements into technical solutions.
  • Participated in code reviews, technical planning, and delivery of production-ready features.
Project Tech stack:
AWS
PostgreSQL
Django
Redis
Celery
Senior Python Developer
Aug 2020 - Apr 20217 months
Project Overview

A COVID-19 patient monitoring and quarantine management platform designed to help public health authorities track and manage patients remotely. The solution combined wearable Bluetooth Low Energy (BLE) devices, gateway hardware, and mobile applications to monitor patient location and quarantine compliance.

Responsibilities:
  • Integrated Bluetooth Low Energy (BLE) wearable devices and gateway hardware into the platform's monitoring infrastructure.
  • Built distributed and event-driven system components using Django and AMQP messaging.
  • Worked with M2M communication networks to support reliable device connectivity and data transmission.
  • Contributed to web and mobile applications using React and Flutter.
  • Implemented real-time monitoring, alerting, and patient tracking capabilities for public health authorities.
  • Collaborated with cross-functional teams to deliver a scalable solution during a time-sensitive public health initiative.
  • Participated in system design, integration, testing, and production deployment activities.
Project Tech stack:
Python
PostgreSQL
MongoDB
Redis
Celery
RabbitMQ
Python Developer
Feb 2020 - Aug 20206 months
Project Overview

A large-scale cargo and logistics management platform used by major international shipping and delivery companies in Azerbaijan. The platform enabled customers to purchase products from global marketplaces, route shipments through warehouses in countries such as the United States and Turkey, and manage final delivery to Azerbaijan.

Responsibilities:
  • Built customer-facing systems for shipment tracking, package management, and international order processing.
  • Contributed to warehouse management solutions used by operational teams across multiple international locations.
  • Developed backend services, APIs, and business workflows supporting cross-border logistics operations.
  • Participated in the development of mobile applications for customers and internal staff.
  • Built and maintained automated order-processing agents that integrated with third-party e-commerce platforms.
  • Collaborated with product managers, operations teams, and engineers to improve logistics efficiency and user experience.
  • Worked on database design, system integrations, and business process automation to support high-volume shipment operations.
Project Tech stack:
Python
Django
Redis
Docker
Bitbucket
Celery
React

Education

2016
Psychology
Bachelor's

Languages

Turkish
Advanced
Azerbaijani
Advanced
English
Advanced

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