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Ofek Tzadok

@ofektzadok

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Prompt engineer specializing in LLM agent optimization for B2B SaaS.

Israel

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What I'm looking for

I seek a dynamic role where I can leverage my AI expertise to drive innovation and contribute to impactful projects.

As a dedicated Prompt Engineer, I specialize in optimizing LLM agents for B2B SaaS applications. My experience includes designing, testing, and evaluating prompts using advanced tools like Langsmith and LangGraph. I have a proven track record of transforming unstructured customer data into high-value structured outputs, significantly enhancing the efficiency of customer service and sales teams.

At the Gist, I led the development of evaluation frameworks to optimize model performance and reliability across production workflows. My role involved collaborating closely with cross-functional teams to define success metrics, enabling data-driven decision-making that drives revenue growth. I am passionate about leveraging AI technologies to create impactful solutions that meet business needs.

Experience

Work history, roles, and key accomplishments

Prompt Engineer

The Gist

Nov 2024 - Present (8 months)

Designed, tested, and evaluated prompts (OpenAI/Gemini) using Langsmith and LangGraph for LLM agents handling CS/sales workflows. Built evaluation frameworks in Langsmith to optimize model performance and reliability across production workflows.

Prompt Engineering Langsmith LangGraph Gemini Custom Evaluators (Python)

Founder & GM (volunteering)

Logistic War Civilian Initiative

Oct 2023 - Present (1 year 9 months)

Co-founded and led a large-scale volunteer operation with over 140 volunteers, raising approximately $185,000. This initiative successfully supported over 10,000 soldiers with essential logistics.

Leadership Volunteer Management Fundraising Logistics Operations Management Strategic Planning

Product Manager - Marketing Department

ThinkUp

Jan 2023 - Present (2 years 6 months)

Led product development with UX/UI and R&D teams, defining KPIs and executing go-to-market strategies. Managed the product lifecycle from conception to launch, ensuring alignment with business objectives.

Product Management UI R&D KPIs Go To Market Strategy Jira Excel SQL

Entrepreneurship & Product Management

Koritsu.io

Jan 2021 - Present (4 years 6 months)

Developed a B2B GenAI SaaS for property optimization, securing a $10M term-sheet offer. Implemented an AI Humanizer using prompt engineering to manipulate AI-generated text to match specific writing styles.

entrepreneurship Product Management Generative AI Prompt Engineering B2B SaaS AI Humanizer Market Research

Combat Camera

IDF Spokesperson's Unit

Nov 2017 - Present (7 years 8 months)

Served as a combat photographer and videographer within the Fields Intelligence Corps. Documented military operations and events through visual media.

Combat Photography Videography Visual Storytelling Media Production Photo Editing

Education

Degrees, certifications, and relevant coursework

York St John University

MBA, Innovation and Entrepreneurship

Grade: Merit

Completed an MBA with a focus on Innovation and Entrepreneurship, achieving a Merit classification. This program provided a strong foundation in business strategy and entrepreneurial ventures.

GiveandTech

Certificate, Product Management

Completed a Product Management program at GiveandTech. This course focused on key aspects of product development and management.

Google’s course (Coursera)

Specialization Certificate, Data Analytics

Activities and societies: Data Aggregation, Data Analytics, Data Calculations, Data Cleaning, Data Visualization, Presentations, R, Excel, SQL.

Completed the Google Data Analytics Specialization course through Coursera. Gained expertise in data aggregation, analytics, cleaning, visualization, and presentations using R, Excel, and SQL.