Frederico Machado

English With Flow / Project portfolio

English teaching.
AI & data.

I’m Frederico Machado, an English educator and engineering student. Explore an AI tutor prototype and the business data behind a year of one-to-one English teaching.

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One year at English With Flow

R$44,000–R$46,000

Modeled gross contract value · seven or eight renewals

15unique learners
22–23packages contracted
1,056–1,104lessons contracted
48 lessons · R$2,000 per package assumedSee the calculation

Selected projects

AI training · English tutoring

Build an AI tutor for English practice

Try lesson planning, turn-by-turn roleplay, targeted feedback and vocabulary practice.

23/24 held-out intent examples routed correctly
 Data analysis · SQL

How much did renewals add?

Translate a small business cohort into contracted sales, teaching commitments and renewal metrics.

R$44,000–46,000 in modeled contract value
 Data science · simulation

How many teaching slots should EWF reserve?

Stress-test booking capacity under three renewal scenarios with a seeded Monte Carlo model.

29 slots/week at the base-case P90
 Data engineering · Python and SQLite

Build a reproducible contract ledger

Turn aggregate business inputs into a validated dataset that reconciles with the dashboard.

45 synthetic rows across two scenarios

About me

I have over 15 years of experience teaching English, including assessment design, academic coordination and online training. I hold a Portuguese and English degree from UFRJ, Cambridge CELTA and C1 Advanced qualifications, and I’m studying Mechanical Engineering at Universidade Veiga de Almeida.

I’m interested in remote roles in bilingual AI training and evaluation, data analysis, and junior data science or data engineering.

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