apto.gr

Trusted
delivery.

Feedback from product owners, founders, and engineering teams who hired APTO for architecture, integrations, performance work, and production delivery.

Testimonials 23
Avg rating 5.0/5
Linked projects 23
Sources 2

Voices.

A complete list of public client feedback connected to APTO's delivery work. Each review reflects real project outcomes, not anonymous marketing copy.

Upwork

"Agamemnon was excellent to work with. Everything was done quickly, professionally, and exactly as requested. Communication was clear and to the point — no unnecessary back and forth. I would..."

Barkonikos Nikolaos

Barkonikos Nikolaos

Braderon

May 2025

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Upwork

"The freelancer did a great job over the course of this project. What started as a simple API integration to fetch stock and sales data from Amazon marketplaces evolved step by step into a much more advanced internal tool – and he adapted to every new requirement along the way. He consistently delivered clean and functional updates, improved the logic behind stock forecasting and distribution, and supported us in turning a basic concept into a practical and scalable solution for inventory management. The collaboration is now successfully completed, and we’re very satisfied with the outcome. We appreciate his expertise and dedication throughout the process. Highly recommended for anyone looking to build or improve Amazon API-based tools."

Serdar Serasar

Serdar Serasar

Serasar

Apr 2025

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Upwork

"Agamemnon has great skills in the field of Pagespeed Optimization. Thanks for your help and the valuable insights and learnings."

Timothy Scherman

Timothy Scherman

CG Lympha

Oct 2024

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Upwork

"Agamemnon did a good job . He was available to look into things when needed . He is reccomended from my side .."

Barkonikos Nikolaos

Barkonikos Nikolaos

Braderon

Jun 2024

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Upwork

"I strongly recommend working with APTO. Unique ideas and a pleasure to work with."

Attila Hardy

Attila Hardy

ArrayCap

Mar 2024

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Upwork

"Happy with the end result, problems were successfully resolved with the freelancer going the extra mile."

Dimitrios Athanasiadis

Dimitrios Athanasiadis

Designodom

Oct 2023

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Upwork

"Agamemnon Katradis is one of the best contractors I've had the chance to work with on this platform. He is very proficient at his work, and always came up with ideas and suggestions for the tasks we had to complete. His communication skills are also excellent, as its very important to work with someone who is polite, understanding and knows how to approach any given conversation. I will certainly work with him again in the near future!"

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Nikos Mavrakis

Violife Foods

Dec 2022

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Upwork

"This guy is the real deal. He is intelligent, quick, reactive, proactive, enthusiastic, creative, lovely, professional, communicative. Could not have imagined anyone better for my website project than him. Actually, he handled it much better than I thought anyone could. No one can be more recommended than him."

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Mario Daniel Stoeckert

Bull Bear Forex

Jul 2021

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Upwork

"Excellent team to work with. Was very prompt in his communication and did an excellent job. I am also impressed in his initiative to recommend other solutions and share ideas. Enjoyed working with him."

Jason Mackie

Jason Mackie

Connect Security Products

Jul 2021

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Upwork

"Great work from APTO, will definitely work again with this team."

Dimitris Sereleas

Dimitris Sereleas

Web Flow

Jul 2021

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Upwork

"I always had my plan very vague ... and i had only put up few main points about how it has to be done... These guys had the IQ to understand my objectives and made it to the reality very easily... It was even more difficult for me to make others understand what my objectives were but these guys nailed it. In most of the issues i had... these people always came with much better and innovative solutions.... which i felt that those solutions are more better than what my competitive websites are having. Most importantly i noticed these developers do a lot of work within an hour than others developers who actually take 3 or more hours for the same work."

Varun Boddula

Varun Boddula

PointLocals

Apr 2021

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Refferal

"I have been working with Apto for almost 6 months developing and running an online marketplace. We started this project from scratch, and I am impressed with their ability to contribute in every aspect of the development process – from web design and UI/UX to front and back end coding and overall business strategy. I am also impressed by the team’s responsiveness, professionalism and commercial awareness as well as by their ability to creatively add on our suggestions and proactively improve our ideas. An excellent team of highly professional people and a joy to work with."

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Aimilios Koumantos

Congrapps

Sep 2019

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Upwork

"Thank you very much Apto! You are a gem freelancer! You are proactive and really value your work. I would definitely hire you again."

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Jonathan Huston

Jobs Boost

May 2019

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Upwork

"Excellent communication from start to finish. Went above and beyond. Increased site speed from 5-8 second load time to below 3 seconds. Give tips for how to achieve additional speed increase and even assisted in one code issue on the site. Will use again in the future. English is perfect and it was exactly like working with someone in the US. I had full trust in Agamemnon."

Thomas Mattison

Thomas Mattison

ARC Reef

May 2019

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Upwork

"Strong work Ethic, hardworking, honest about what he is doing, his traits are marketable. he does not leave the job until it is finish although the problem is not his or cause by him, he has the qualities of a great worker. i am more than satisfy."

Michael Alleyne

Michael Alleyne

Global Vacation Barbados

Feb 2019

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Upwork

"Great person, Had done more and beyond what he promised, very good communication :)"

Or Ellenbogen

Or Ellenbogen

Social Ninja

Feb 2019

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Upwork

"Great communication and code quality. Professional approach to the needs of the projects and always delivering on time. Adjustable to our coding structure and a great person to work with."

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Jason Anastasinis

Travelstaytion

Feb 2019

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Upwork

"If giving 6 stars is an option, this guy would get it. I'm very happy with the work he has done and will be sending him work for my future projects. If you value your time then this is the guy to work with."

Elias Snt

Elias Snt

Starntop

Feb 2019

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Upwork

"Did everything I asked. Very knowledgeable. Helpful and good for opinion and ideas. Would not go to anyone else if I have more work to be doe."

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Damien O'Halloran

MetroSolutions

Feb 2019

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Upwork

"great work and very helpful! guided us with every step. Thanks!"

Hakan Khalid

Hakan Khalid

Sports Blue

Feb 2019

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Upwork

"Agamemnon (Menios) is great. He seems to best at back-end work and getting API's to work. I think he's very good and I will be using him again."

Steve Poland

Steve Poland

Doc2PDF

Feb 2019

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Upwork

"Agamemnon did an amazing job with creating us responsive dashboards. It has helped tremendously with providing valuable insight into our operations. Thank you for the results!"

Theodoros Koukoutsas

Theodoros Koukoutsas

GX Blocks

Feb 2019

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Upwork

"The team has good communication and skills. Just be clear about what you want and they will do it with pleasure. I recommend and hope to be able to work quickly with them."

Jean-Baptiste PERON

Jean-Baptiste PERON

AB-MEDIA.FR

Nov 2018

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