Looking for a job

Ali Kayar

@alikayar

Message

I build full-stack systems, automation pipelines, and data products that improve performance and reduce manual work.

Turkey

Message

What I'm looking for

I'm looking to build production full-stack products, data systems, and automation that improve reliability, performance, and operational efficiency.

At Eva Commerce, I built a production RAG chatbot with OpenAI and pgvector, rebuilt core modules with TypeScript, Next.js, PostgreSQL, and ClickHouse, and redesigned payment and subscription workflows around a rule-based calculator.

Previously, I shipped a full-stack production system as the solo engineer at Cosmos Trade USA and automated supplier analysis workflows to increase throughput 10x. I also use Python, React, Docker, OpenSearch, AWS, and automation tools to turn operational work into reliable systems.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Software Engineer

Current

Eva Commerce

Aug 2025 - Present (1 year 2 months)

Engineered a production-grade RAG chatbot using OpenAI and pgvector, replacing a third-party vendor and reducing recurring costs. Rebuilt core application modules with TypeScript, Next.js, PostgreSQL, and ClickHouse, improving performance and page load times.

OpenAI Pgvector TypeScript Next.js PostgreSQL Clickhouse OpenSearch RAG Chatbot Payment Systems Subscription Systems

Software Engineer

Cosmos Trade USA

Jul 2024 - Aug 2025 (1 year 1 month)

Architected and deployed a full-stack production system as a solo engineer using React, Python, PostgreSQL, and Docker, improving infrastructure reliability and eliminating recurring downtime. Automated supplier product analysis workflows, increasing throughput by 10x.

React Python PostgreSQL Docker Web Scraping Data Enrichment Data Pipelines Automation

Logistics Intern

PepsiCo Frito Lay

Aug 2024 - Aug 2024 (0 months)

Automated reporting with Excel VBA, reducing report generation time by 90%.

Excel VBA Automation Reporting

Technical Service Engineer

Lotus Technic

May 2023 - Sep 2023 (4 months)

Prepared sheet-metal cutting plans using Metalix CAM to optimize sheet layouts, reducing costs and providing technical support for CNC punch operations. Automated repetitive workflows using Excel VBA, reducing manual workload by 95%.

Metalix CAM CNC Punch Excel VBA Automation Technical Support