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Jose Lesarri

@joselesarri

Data Analyst at Immunefi who cut AI API usage by 80% and built analytics pipelines and dashboards.

Spain
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At Immunefi, I restructured BigQuery data warehouses and table schemas to support scalable analysis and lower query costs. I also optimized a scheduled scraper and AI pipeline connecting external APIs, internal systems, transformations, and a consumption-ready API.

I developed Python APIs and product-feature logic, integrating OpenAI-compatible APIs into AI/data pipelines. By reducing API calls and token usage by 80%, I lowered execution time and cost while preserving data integrity.

I designed Segment tracking plans, debugged ingestion, and improved downstream routing to Mixpanel. I built Looker dashboards used across company teams, with approximately 20 unique users accessing them daily; ad-hoc reporting fell 85%.

Earlier, I performed SQL exploratory analysis and maintained database inserts and data-cleaning routines for historical accuracy. I also initiated engagement-analysis projects and created a Discord bot to generate additional insights.

Experience

Work history, roles, and key accomplishments

IM

Data Analyst, Analytics Engineering focus

Immunefi

Feb 2024 - Jan 2026 (1 year 11 months)

Restructured BigQuery data warehouses and table schemas for scalable analysis and lower query costs. Developed Python APIs and integrated OpenAI-compatible APIs into AI/data pipelines, reducing OpenAI API calls and token usage by 80%.

IM

Data Analyst

Immunefi

Feb 2023 - Jan 2024 (11 months)

Performed SQL exploratory analysis and maintained database inserts and data-cleaning routines for historical accuracy. Produced actionable analysis for community and marketing stakeholders.

IM

Community Manager & Junior Data Analyst

Immunefi

Sep 2021 - Feb 2023 (1 year 5 months)

Initiated engagement-analysis projects and created a Discord bot to generate additional insights.

Education

Degrees, certifications, and relevant coursework

Universidad Internacional de Valencia logoUV

Universidad Internacional de Valencia

Computer Engineering, Computer Engineering

Pursuing a degree in Computer Engineering at Universidad Internacional de Valencia.

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