"Delivered good work and I enjoyed working with him. His communication was top-notch, he met all deadlines, and his skills were really strong."

Adrian Janon (Mondia Media)

Serverless data collection platform with Google Cloud (PubSub, Dataflow, BigQuery)

"Alexander Kolchin is a highly skilled developer, who works equally well with detailed instructions as with ambiguous goals. He has a very good overview of relevant platforms and tools, and gave recommendations that were beyond my original expectations. He is also a good sparring partner for issues related to developing AdWords tools. In short: A stellar freelancer and a pleasure to work with."

Håvard Ørbech ( - Norway)

AdWords API programming

"Artem did a fantastic job on our project. He completed what was needed in a timely manner and we are very happy. Will definitely use again."

Daniel Lummis (Digital Monopoly - Australia)

Freelance Java Developer

"Great experience working with them - communication was great, they were willing to go back and fix bugs and work with me on solutions. The language barrier is a little tough to communicate things, that's the only drawback but they come in at a great price and do great work!"

Roger Parent ( - United States)

Adwords Scripts

"Well done! Thanks a lot!"

Eduardo Carabano ( - Spain)

Adwords Scripts/API developer

"Excellent and flexible team!"

Renjith Rajan (Boonze Media Solutions - India)

Identify Active AdWords Customer Ids

"Very knowledgeable with google scripts. Thorough in his work, would recommend to anyone."

Graham Everitt (LT Affiliates - United Kingdom)

Connecting GA and Google Sheets

"High quality work. Always very clear descriptions and explanations. Very happy and I will hopefully hire them again in the future."

Frida Krantz (Reseguiden Interactive AB - Sweden)

AdWords script automate monthly report

"Highly Recommended."

Graham Everitt (LT Affiliates - United Kingdom)

GA Script

"We are happy with the work overall. we did hit some roadblocks but the team came back well and responded quickly to fixing issues. Working together on another contract."

Joao Zanella (Findhotel - Netherlands)

Google Adwords script to add or edit Sitelink extensions

"It was great working with Sergey and Alexander. They delivered a Google script which meets our exact project requirements. Will work with them again in the future :)"

Matthew C. (Ads2Convert Ltd - United Kingdom)

Adwords Script Editing

"Alexander is efficient, understands the brief entirely and is very quick! I highly recommend him for any related works. Thanks!"

Gavin George (Enhance Entertainment - Australia)

Connect GA Account with WordPress Site

"Alexander is an example for other developers. He is sharp, communicative, constructive and works really well alone and in a team. We will be contracting with him again, very soon."

Pranay Patel (groceryratings.com - United States)

Google App Engine Developer

"Great work, very efficient, helpful and proactive thinking and acting. always again with Alex!"

Ingo Gruenig (soft4cash - Switzerland)

Adwords / Analytics update

"Alex worked on an adwords project for our company and did an amazing job."

Vinh Le (Thai Nguyen - United States)

AdWords Consultant

"Just perfect!"

Jakob Hofman Pedersen (Media Function - Denmark)

Google Developer

"Alexander is very insightful and diligent. He is a pleasure working with.

Thank You Alexander. You delivered exactly what was asked for very quickly and with good quality."

Eric Corum (Georgetown Living - United States)

Google Based Solutions Expert

"Alexander, thank you for good work!"

Dmitry Smirnov (MJP - Russia)

Gmail/Google Apps Plugin. API Expert.

"Very well"

Bill Weiss (X Theory - United States)

GCP Google Cloud Expert (DNS, LB, CDN, WordPress) for WordPress Issues

"5 stars"

Jakob Knutzen (StreamCrux ApS - Denmark)

Google Cloud Platform x Firebase | Deployment of blog in subdirectory

"5 stars"

Jeremy Corman (https://www.gatekeepr.co - Belgium, USA)

Social Media Intelligence software to develop brands content strategies - Google Cloud Platform based solution (Classifying content with Google AI and machine learning products)

4.5 stars

Niels Emmen ( - Netherlands)

I need an Google Spreadsheet Expert. I have different spreadsheets that connects with each other (I think using scripts). One of the primary spreadsheets, I need to copy and make sure the script is also working there. At the moment it doesn't.  - Spreadsheet needs to by copied
 - Script needs to work on the new spreadsheet - Script needs to change on the 'old' spreadsheet

Google Cloud Platform based solution

Miro Morczinek (X24Factory - Germany)

Automated SEM reporting and bid management functions via the Adwords API (Java)

"Fantastic working with Alexander, good communication, experienced and skilled with Java. Hope to work with him again in the near future."

Ashley Schroder (A2X - New Zealand)

Java developer for SaaS web app

"A superb experience, I would not hesitate to hire them again."

Alex Keller (Effective Spend - United States)

Google Analytics Data Integration

"Great work. This was a big project and they did an amazing job!"

Cameron Houston (Camistry - New Zealand)

Push active customers from Spreadsheet to Xero via API

"Alexander helped us a lot in discussing and setting up the architecture for a dataflow streaming project. He was very knowledgeable about GCP architecture and products."

Mads Schou-Andreasen (Oceanbolt - Norway)

GCP Dataflow (Apache Beam) real-time ETL pipeline