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AI Engineer and Senior Backend Engineer with 10 years of experience building production systems in TypeScript/Node.js, distributed architectures, and integration-heavy workflows. I specialize in LLM-powered applications using RAG, GPT/Claude, and enterprise-grade document intelligence. I’ve shipped end-to-end solutions across AWS Textract/OCR pipelines, vector retrieval, event-driven sync, CIAM/authentication, and third-party enrichment. I enjoy turning complex requirements into reliable, scalable services and APIs.…AI Engineer and Senior Backend Engineer with 10 years of experience building production systems in TypeScript/Node.js, distributed architectures, and integration-heavy workflows. I specialize in LLM-powered applications using RAG, GPT/Claude, and enterprise-grade document intelligence. I’ve shipped end-to-end solutions across AWS Textract/OCR pipelines, vector retrieval, event-driven sync, CIAM/authentication, and third-party enrichment. I enjoy turning complex requirements into reliable, scalable services and APIs.

Ozan Alpkaya

AI Engineer, Back-End Developer, Programmer, +2

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AI Engineer and Senior Backend Engineer with 10 years of experience building production systems in TypeScript/Node.js, distributed architectures, and integration-heavy workflows. I specialize in LLM-powered applications using RAG, GPT/Claude, and enterprise-grade document intelligence. I’ve shipped end-to-end solutions across AWS Textract/OCR pipelines, vector retrieval, event-driven sync, CIAM/authentication, and third-party enrichment. I enjoy turning complex requirements into reliable, scalable services and APIs.…AI Engineer and Senior Backend Engineer with 10 years of experience building production systems in TypeScript/Node.js, distributed architectures, and integration-heavy workflows. I specialize in LLM-powered applications using RAG, GPT/Claude, and enterprise-grade document intelligence. I’ve shipped end-to-end solutions across AWS Textract/OCR pipelines, vector retrieval, event-driven sync, CIAM/authentication, and third-party enrichment. I enjoy turning complex requirements into reliable, scalable services and APIs.

Available to hire

AI Engineer and Senior Backend Engineer with 10 years of experience building production systems in TypeScript/Node.js, distributed architectures, and integration-heavy workflows. I specialize in LLM-powered applications using RAG, GPT/Claude, and enterprise-grade document intelligence.

I’ve shipped end-to-end solutions across AWS Textract/OCR pipelines, vector retrieval, event-driven sync, CIAM/authentication, and third-party enrichment. I enjoy turning complex requirements into reliable, scalable services and APIs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Work Experience

Freelance AI & Backend Engineer at Upwork

June 1, 2023 - August 1, 2026

Delivered production AI and backend solutions across document intelligence, enrichment, and LLM-assisted support. Built a document-intelligence and enrichment pipeline using AWS Textract combined with GPT/Claude to extract and normalize multiple identity and business-card document types. Integrated third-party enrichment providers (FullEnrich, Bright Data, Dropcontact) to enrich profiles with company, LinkedIn, phone, and related contact data. Built a production Slack Q&A assistant using Node.js (Slack Bolt), GPT, and RAG, grounding answers in internal knowledge and responding directly in Slack. Implemented Salesforce commerce integrations including an OMS integration and an Adyen payment integration for SFCC checkout and commerce workflows, connecting commerce and order/payment processes.

Senior Backend Engineer at Parfums Christian Dior

April 1, 2022 - June 1, 2024

Technical lead for backend and CIAM workstreams, guiding cross-functional teams of 3–7 engineers. Led a large-scale CIAM migration of 9.2M customer records from Akamai Identity Cloud to ReachFive, designing strategies to work around search limitations and ensuring reliable pagination and data throughput. Implemented OAuth2-based authentication and social login (Google, Apple, Facebook, LINE) via ReachFive authorization endpoints, including access-token binding and webhook orchestration for pre/post events. Built event-driven and webhook-based synchronization across commerce, identity, and customer platforms across 40+ markets. Developed Node.js/TypeScript backend services, REST APIs for internal/external integrations, and implemented retry/fallback/duplicate-prevention and eventual-consistency patterns to reduce sync failures and duplicate records. Diagnosed recurring production issues across login/checkout/profile/password flows, reducing on-call escalations, and produced architectu

Tech Lead, Backend Focus at Cartier

October 1, 2021 - April 1, 2022

Led a team of 5–6 backend engineers across checkout, order processing, and payment orchestration systems. Designed and optimized backend transaction flows for payments and commerce operations, improving checkout reliability and eliminating recurring failure points. Performed code reviews, mentored engineers, and promoted clean architecture and reliable delivery practices.

Senior Software Engineer at feature/mind

April 1, 2021 - October 1, 2021

Developed backend integrations and payment workflows for eCommerce platforms. Improved checkout performance and reduced checkout drop-off by 15% through API and performance improvements for integration-critical user journeys.

Software Engineer at OSF Digital

July 1, 2018 - April 1, 2021

Built backend components, integration layers, and commerce features for enterprise clients. Improved reliability through testing and production optimization while delivering integration-focused backend services for client platforms.

Software Engineer at Evrensel Software

May 1, 2017 - July 1, 2018

Developed backend-focused SaaS applications and scalable, data-driven business systems. Delivered services centered on reliability, data modeling, and production-grade integrations for growing business requirements.

Junior Software Engineer at Fuga Software

July 1, 2016 - May 1, 2017

Developed backend logic and integrations for payment, shipping, and commerce workflows. Worked on integration and backend components that support end-to-end commerce operations.