Open to opportunities

Levent Ozcakir

@levent

I evaluate and improve multilingual LLMs through rigorous data analysis, adversarial prompting, and quality audits.

At DataAnnotation, I train, refine, and benchmark large language models for leading AI research labs. I design adversarial multi-turn prompts, evaluate factual accuracy and reasoning quality, and conduct multilingual audits to protect dataset integrity.

Through S&L Marketing, LLC, I develop end-to-end marketing strategies spanning market analysis, branding, SEO/SEM, PPC, email, social, content, and experiential campaigns. I manage cross-functional teams, client relationships, budgets, ROI tracking, and campaign optimization using Google Analytics and CRM tools.

My background also includes clinical data analysis for Allergan trials supporting BOTOX®, international sales, distribution operations, forex analysis, real estate brokerage, and editorial leadership. I bring bilingual English and Turkish communication, commercial judgment, and disciplined analysis to complex work.

Experience

Work history, roles, and key accomplishments

Current

Bilingual AI Data Analyst

Current

DataAnnotation

Jan 2026 - Present (7 months)

Train, refine, and benchmark large language models, evaluating outputs for accuracy and reasoning. Design adversarial prompts and conduct multilingual content audits.

Prompt Engineering LLMOps NLP Fact Checking Machine Learning Logical Reasoning Localization

Current

Owner

Current

S&L Marketing, LLC

Jan 2021 - Present (5 years 7 months)

Develop end-to-end marketing strategies for clients, manage cross-functional teams, and oversee campaign budgets and ROI tracking.

Marketing Strategy Market Analysis Campaign Management Budget Management ROI Tracking Google Analytics CRM SEO SEM PPC Email Marketing Social Media Marketing Content Marketing Experiential Marketing Market Research

Digital Marketing Consultant

Sole Proprietor

Jan 2017 - Dec 2020 (3 years 11 months)

Advised clients on market analysis and sales strategy, managed SEO and social media campaigns, and led website design and brand management.

Market Analysis Sales Strategy SEO Affiliate Marketing Social Media Marketing Web Design PR Brand Management

International Sales Director

Aegean Free Zone

Jan 2015 - Dec 2017 (2 years 11 months)

Directed international sales for import/export operations in packaging and printing, built client relationships, and negotiated trade agreements.

International Sales Import Export Negotiation Cross Border Logistics Compliance Customer Relationship Management

General Manager

Distributex Pazarlama Tic. Ltd. Şti.

Jan 2013 - Dec 2015 (2 years 11 months)

Managed daily operations for an exclusive distribution business, oversaw supplier relationships and inventory, and led sales and business development.

Operations Management Supplier Management Inventory Management Sales Business Development

Introducing Broker

FxPro Financial Services / Easy Forex

Jan 2008 - Dec 2015 (7 years 11 months)

Conducted technical analysis of foreign currency markets, traded and managed client funds, and advised a client base of forex investors.

Technical analysis Forex Trading Risk Management Client Advisory

Real Estate Broker

LevOz Properties

Jan 2006 - Dec 2014 (8 years 11 months)

Brokered commercial and residential land development and sales transactions, advised clients on property valuation and market trends, and managed the full sales cycle.

Real Estate Property Valuation Market Analysis Sales Negotiation

VP, Executive Editor

Color and Aroma Magazine

Jan 2008 - Dec 2009 (1 year 11 months)

Oversaw editorial direction, publication management, and branding for a print magazine, managed accounting and distribution, and drove print and advertising sales.

Editorial Management Publication Management Branding Accounting Procurement Distribution Print Sales Advertising Sales

Clinical Data Analyst

Allergan

Jan 2002 - Dec 2008 (6 years 11 months)

Managed data analysis for high-profile clinical trials, ensuring data accuracy and regulatory compliance, and collaborated with research teams to support regulatory submissions.

Clinical Data Management Data Analysis Regulatory Compliance Clinical Trials