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Nicolas M.

@OscarMozo

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5.0
7

5.6

5.6

100%

Google Sheets Expert: Apps Script: APIs:Automation

$50 USD / Hour

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Flag of

Paraguay (3:34 PM)

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Joined on November 4, 2019

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1 Recommendation

$50 USD / Hour

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Welcome! Below is what I can help you with: ✅ Edits: Formula fixes, data cleanup, advanced formulas ✅ Automation: Google Apps Script for repetitive tasks and workflows ✅ API integrations: Meta/Google/TikTok Ads, CRMs, payment systems, any API ✅ AI & LLM integrations: ChatGPT, Claude, Gemini for smart automation and analysis ✅ Custom systems: Complete business solutions in Google Workspace ⭐️ Not tied to Excel? I understand macros in Excel and Excel in general, in case you don't mind switching to Google Sheets. Have a project in mind? Let’s chat about how I can help.

Verifications

On time

100%

On budget

100%

Accept rate

43%

Repeat hire rate

33%

Freelancer API Developers Paraguay
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Portfolio

Portfolio

13704314
https://youtu.be/CnBtM-Gh18E I built a Google Apps Script that connects the Discord API to Google Sheets by routing requests through a Cloudflare Worker proxy. It uses a Discord bot token and channel ID to fetch messages, then bulk-writes them into a clean Sheet for logging, reporting, and automation—ideal for bringing Discord server activity directly into spreadsheets.

Discord API to Sheets - Apps Script

13690528
https://youtu.be/hDGbTnedgGY I built a Google Apps Script that connects WooCommerce to Google Sheets using the WooCommerce REST API. It authenticates with your store’s API keys, fetches all orders with pagination, maps key fields like status, dates, and totals, and writes everything into a clean Sheet—perfect for automating order exports and simple WooCommerce reporting.

WooCommerce API to Google Sheets

13681230
https://youtu.be/S3zUYI8_XHE I built a Google Apps Script that connects the Jobber API to Google Sheets using GraphQL. It exchanges a refresh token for an access token, fetches invoices with cursor-based pagination, and writes client details, dates, status, and totals into a clean, ready-to-use Sheet—ideal for keeping Jobber invoice data synced and automated.

Jobber API to Sheets - Apps Script

13678037
https://youtu.be/BTb_i7UwsHU I built a Google Apps Script that pulls Slack channel messages into Google Sheets using the Slack API. It authenticates with a bot token, fetches conversation history with pagination, maps user IDs to names, and writes a clean, formatted message log directly into a spreadsheet for easy analysis or archiving.

Slack API to Sheets - Apps Script

13672015
https://youtu.be/qp5-oTHblKM I built a Google Apps Script that connects TikTok Ads to Google Sheets using the TikTok Ads API. It authenticates with your app’s long-term access token, fetches ad names and performance metrics with pagination, and writes clean, ready-to-analyze data directly into a spreadsheet—perfect for building automated TikTok Ads dashboards.

TikTok API To Sheets - Apps Script

13643469
https://youtu.be/tF6lPSSvCd8 I built a Google Apps Script that connects Google Analytics 4 to Google Sheets using the Analytics Data API. It exchanges a refresh token for an access token, fetches totals and active users by city and country with pagination, calculates average engagement time, and writes everything into a Sheet—perfect for automated GA4 dashboards without add-ons.

GA4 API to Sheets -Apps Script

13704314
https://youtu.be/CnBtM-Gh18E I built a Google Apps Script that connects the Discord API to Google Sheets by routing requests through a Cloudflare Worker proxy. It uses a Discord bot token and channel ID to fetch messages, then bulk-writes them into a clean Sheet for logging, reporting, and automation—ideal for bringing Discord server activity directly into spreadsheets.

Discord API to Sheets - Apps Script

13690528
https://youtu.be/hDGbTnedgGY I built a Google Apps Script that connects WooCommerce to Google Sheets using the WooCommerce REST API. It authenticates with your store’s API keys, fetches all orders with pagination, maps key fields like status, dates, and totals, and writes everything into a clean Sheet—perfect for automating order exports and simple WooCommerce reporting.

WooCommerce API to Google Sheets

13681230
https://youtu.be/S3zUYI8_XHE I built a Google Apps Script that connects the Jobber API to Google Sheets using GraphQL. It exchanges a refresh token for an access token, fetches invoices with cursor-based pagination, and writes client details, dates, status, and totals into a clean, ready-to-use Sheet—ideal for keeping Jobber invoice data synced and automated.

Jobber API to Sheets - Apps Script

13678037
https://youtu.be/BTb_i7UwsHU I built a Google Apps Script that pulls Slack channel messages into Google Sheets using the Slack API. It authenticates with a bot token, fetches conversation history with pagination, maps user IDs to names, and writes a clean, formatted message log directly into a spreadsheet for easy analysis or archiving.

Slack API to Sheets - Apps Script

13672015
https://youtu.be/qp5-oTHblKM I built a Google Apps Script that connects TikTok Ads to Google Sheets using the TikTok Ads API. It authenticates with your app’s long-term access token, fetches ad names and performance metrics with pagination, and writes clean, ready-to-analyze data directly into a spreadsheet—perfect for building automated TikTok Ads dashboards.

TikTok API To Sheets - Apps Script

13643469
https://youtu.be/tF6lPSSvCd8 I built a Google Apps Script that connects Google Analytics 4 to Google Sheets using the Analytics Data API. It exchanges a refresh token for an access token, fetches totals and active users by city and country with pagination, calculates average engagement time, and writes everything into a Sheet—perfect for automated GA4 dashboards without add-ons.

GA4 API to Sheets -Apps Script

5.0 · 7 Reviews
Reviews
R

Milestone 1 • £470 GBP

Nicolas was very friendly and understanding to the specific requirements I needed for my quality assurance documents and record keeping.

Rebecca H.

@rebeccah35

•

Flag of

Huddersfield, United Kingdom

•

5 months ago

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Rider front end • $900 USD

It's been great working with Nicolas. He was very quick at understanding what I was trying to build and he built it within the timeline provided and at the cost we agreed on. Probably the best part is how easy it is to get in touch with him and agree on changes to be made as the product is developed. Highly recommend him.

Mauro M.

@Maurom10

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Flag of

Milan, United Kingdom

•

7 months ago

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J

First milestone • $1,000 USD

We hired Nicolas to optimize and add automation to several of our Google Sheets, and he exceeded expectations. He quickly understood the scope of our needs, offered smart workflow improvements, and implemented clean, effective automation that saved us hours of manual work. Communication was clear and timely throughout the project, and he was flexible with revisions. Highly recommend for any Google Sheets or automation tasks!

Jerry M.

@Jerrym1968

•

Flag of

Winder, United States

•

8 months ago

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Chrome extension with API integration and workflow automation • $1,500 USD

It's been a great experience working with Oscar all the way through. He's been very precise from the very beginning with regards to pricing, timelines and the ease of communication was the best I've experienced. He was always available to talk on short notice regarding the changes to the project. He is very knowledgeable in APIs and backend but most importantly he was very helpful in building a streamlined architecture.

Mauro M.

@Maurom10

•

Flag of

Milan, United Kingdom

•

1 year ago

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Shopify bug fix and epicgearvault store improvement • $1,200 USD

Nicolas really know what to do, as we have more plans to hire him again, id you are looking for a professional developer then he is the one to go for! Highly recommended!

Ayman K.

@aymankaddoura1

•

Flag of

Sharjah, United Arab Emirates

•

1 year ago

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Experience

Google Sheets - Excel Expert | Google Apps Script & Excel VBA Developer | API Integrations

Jan, 2019 - Present

•

6 years, 10 months

Freelance

Jan, 2019 - Present

•

6 years, 10 months

Google Sheets - Excel Expert | Google Apps Script & Excel VBA Developer | API Integrations

Jan, 2019 - Present

•

6 years, 10 months

Financial Analyst

Jan, 2017 - Dec, 2021

•

4 years, 11 months

TATA CONSULTANCY SERVICES

Jan, 2017 - Dec, 2021

•

4 years, 11 months

Financial Analyst

Flag of

Budapest, Hungary

Jan, 2017 - Dec, 2021

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4 years, 11 months

Education

Master in Computer Science / École 42

2022 - 2023

•

1 year

Flag of

France

2022 - 2023

•

1 year

Finance / BPP Business School

2015 - 2019

•

4 years

Flag of

United Kingdom

2015 - 2019

•

4 years

Qualifications

Data Science Certification

2023

IBM

Data Science Certification

2023

Certifications

Freelancer Orientation

Freelancer Orientation

P

Preferred Freelancer Program SLA

Python Level 1

Python

Freelancer logo US (International) / English
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