Denis I.
Lodz, Poland
100%
Job Success
Top Rated Plus
Google Apps Script Expert, Automator, API integrator
$80.00/hr
I will help you automate your processes with Google Apps Script. Any workflow involving Google Sheets, Docs, Gmail, Forms, Calendar, or external API services like OpenAI, ChatGPT, Asana, ClickUp, GoHighLevel, etc.
Get in touch with me through direct message, invite me to your project or book a consultation!
⌛ You can save a ton of time!
🔥Latest highlight – OpenAI API (ChatGPT) + LinkedIn + Google Chrome Extension = Matching potential candidates from Job websites to the positions announced by companies on LinkedIn.
Where you are right now ❓
⭐ You are using Google Sheets, Gmail, Google Docs, Google Slides, Google Calendar
⭐ Google Sheets is your go-to tool, but you need to link it to external data sources
⭐ You feel like you are wasting too much time on repetitive data tasks
⭐ You think that it should be possible to automate those tasks
⭐ You have an idea for automation or improvement of the workflow in your company
⭐ You have tried using Zapier, Make, and the like, but you found them too complex or limiting
⭐ You know or heard about Google Apps Script and its capabilities
⭐ You tried to actually use Google Apps Script, but it didn’t quite work
⭐ You made some automations work with Google Apps Script, but you can’t invest more time into it
⭐ You have no clue what all this is about and just think that I could help you with your project.
(In this last case, I would probably recommend booking a consultation with me)
What I can do for you ❓
⭐ I can understand the project requirements, even if you aren’t sure about them.
⭐ In proper, fluent English I will ask all the details of your idea and figure out the initial implementation plan.
⭐ Along the way, I will do my best to help you understand the potential project shortcomings, limitations of technologies and help you set priorities for the development.
⭐ I will also clearly point to what needs to be done before we can start and after we complete the project.
All projects are “technically possible”, but not all are “cost-effective” or “reasonable”.
How I will do this ❓
🔥 Initial stage: detailed analyses and planning (kick-off meeting, workflow, plan)
🔥 Preparation: Share all necessary resources, account access, sign the contract, NDAs (if needed)
🔥 Development: implement the project in stages. Once the stage is complete, I will show it to you, if there is anything to show. There will be constant communication
🔥 On-going review: you will review the developments and provide comments and corrections
🔥 Testing: once the development and corrections are complete, you will test everything
🔥 Delivery: once the final corrections are in and bugs are squashed we conclude the project
🔥 Aftercare: I never mind you coming back if you find a bug (free) or if you need more code (paid)
How you can be sure ❓
Scroll a bit down and read the feedback I consistently get from my customers. I doubt there is anything more convincing than that. Keep in mind that all those words are genuine, people and companies are real and verified by the platform.
Can I show you examples of my work❓
That would be a firm NO. As you can understand, most of the work I do is proprietary and is covered by NDAs. What I can provide are general descriptions:
1. Document Automation
- pull data from CSV file / Online Database/ third party API service,
- process that data and use mail-merge to plug that data into Google Docs templates (invoices, reports, requests, contracts, etc.)
- save them on Google Drive as PDF, email links to the customers
2. Company Invoicing
- set up automated Webhooks, so the CRM sends financial updates to the Google Sheets
- make calculations for final invoices for each vendor and send them to the QuickBooks API
- inform company bookkeeper with automated email
3. Personnel Tracking
- Managers do the daily check of the personnel on-site through online form
- HR department gets daily email updates about absent employees
- HR can edit the list of current employees from central location, it updates everywhere
- Bi-weekly accountant clicks a button and generates the salary sheet
- Employees open the custom form and confirm when they picked up the cheque
- Top management has Master Google Sheet and can find out where worker is or were at any given day
If you found something that makes sense, get in touch with me through direct message, invite me to your project or book a consultation!
🔥 Parts of Google Docs StartDeck Add-On developed by yours truly:
- youtube videos embeded into a Sidebar,
- live table of contents in the Sidebar,
- toggle between numbered and unnumbered lists.
APIs I worked with:
Google Sheets, Google Docs, Stripe, Asana, QuickBooks, BigQuery, Harvest, ClickUp, Cerbo, Intercom, Trello, Github, WordPress, Facebook Atlas, ClickBank, Gmail, Google Calendar, Google Places, Google Place Details, Google Maps, Google Business Profile, GA4, Firebase, Google Analytics, Typeform, Instapage, CryptoCompare, Bittrex, Invenias, EOD Historical Data + others.
Work history
Work history
30 minute consultation
May 22, 2025
-
May 24, 2025
No feedback given
Private earnings
Chrome extension
Jun 10, 2024
-
May 1, 2025
"For a couple of non-tech founders with big ideas Denis was the perfect partner to help us not just realize what we had in mind, but also pushed us to…
Private earnings
30 minute consultation
Apr 1, 2025
-
Apr 3, 2025
No feedback given
Private earnings
Google Apps Script Developer with Google Workspace Add-on Development Experience
5.0
of 2 reviews
Jul 14, 2023
-
Mar 27, 2025
5.0
Private earnings
30 minute consultation
Feb 24, 2025
-
Mar 1, 2025
No feedback given
Private earnings
30 minute consultation
Jul 19, 2024
-
Aug 12, 2024
No feedback given
Private earnings
File storage automation
Mar 26, 2024
-
Jul 29, 2024
No feedback given
Private earnings
30 minute consultation
May 4, 2024
-
May 6, 2024
Private earnings
Gather all email attachments, send to a google drive as they come in
Mar 11, 2024
-
May 1, 2024
"Truly an A+ freelancer that is a tier above the others. Denis was a smart guy who was able to find a solution for us and work through multiple team…
Private earnings
Use Google Sheets for Web Hooks, APIs and App Scripts
Jan 27, 2024
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Apr 19, 2024
"Top-tier freelancer. He's done multiple projects for us and we will hire him again when we have more. Strong communicator, high quality work, efficient and fast."
Private earnings
Connect QuickBooks API to Google Sheets for Automatic Updates
5.0
of 1 reviews
Apr 5, 2025
-
Present
May 11, 2025
5.0
"Was a pleasure working with Denis. He’s very intelligent, detail oriented and will make sure that you get what your looking for in your project!" Job in progress
Private earnings
Ongoing Google Apps Scripts
Jan 17, 2025
-
Present
Job in progress
Private earnings
API Configure Google Places Google Maps Google Nearby Search Gsheets Script & Automation
Oct 18, 2024
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Present
Job in progress
Private earnings
Google Sheets EXPERT Wanted
May 22, 2024
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Present
Job in progress
Private earnings
Prozessabwicklung mit Chat GPT
May 6, 2024
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Present
Job in progress
Private earnings
Google Sheets Automation & AI / LLM API
Apr 19, 2024
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Present
Job in progress
Private earnings
Fitness Program script and Interface
Apr 17, 2024
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Present
Job in progress
Private earnings
Inventory and ordering tool for retail
Feb 20, 2024
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Present
Job in progress
Private earnings
Google Sheets Add-on Developer
Nov 23, 2023
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Present
Job in progress
Private earnings
Google sheets form - change order
Jun 28, 2023
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Present
Job in progress
Private earnings
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Skills
Skills
- Google Apps Script
- JavaScript
- Google Docs
- Google Sheets
- Google Workspace
- jQuery
- BigQuery
- API
- HTML5
- Google Forms
- Google APIs
- OpenAI API
- GPT-4 API
- Google Ads
- Google Chrome Extension