3.3. security hardening, permission enforcement and merchant operational settings

Personal 603 USD

Very pleasant collaboration, I hope we can bring the project to a working state. I recommend for collaboration.

5.0

Kostiantyn Che

14 April

Merchant model 3.2

Personal 580 USD

Great client, very comfortable collaboration. Clearly formulates tasks, responds quickly during the work, adequately discusses details and changes regarding the project. Always in touch, open to constructive dialogue, without unnecessary pressure and with clear logic regarding the stages. Payment and closing of stages without problems. I recommend for collaboration.

5.0

Kostiantyn Che

8 April

Merchant Profile & Admin Creation

Personal 603 USD

Everything is as always at a high level. I recommend for collaboration.

5.0

Kostiantyn Che

7 April

Project 2.3: Admin panel (RBAC), creation of merchants and Hybrid outputs (Risk Engine).

Personal 446 USD

Quick professional communication. Quick correct solutions. I recommend for collaboration.

5.0

Kostiantyn Che

3 April

Project 2.2: Internal Ledger, commission calculation (Fee Levels), balance logic, hosted checkout

Personal 446 USD

Everything as always at the highest level, we continue to collaborate.

5.0

Kostiantyn Che

31 March

Project 2.1 Integration of CEX.io API, address generation, deposit webhooks.

Personal 558 USD

Everything as always at the highest level. Clear understanding of the task and understanding of the final result.

5.0

Kostiantyn Che

30 March

Building a SaaS layer (blockchain)

603 USD

Pleasant client, easy to contact, I recommend for collaboration.

5.0

Kostiantyn Che

27 March

Test landing page with payment page

78 USD

Pleasant and responsible client. The task was clearly formulated, communication was quick and constructive. Payment was made on time. During the work, there were technical problems on the side of the third-party API, but the client was understanding and correctly closed the project. I would be happy to collaborate further.

5.0

Kostiantyn Che

7 March

Update landing page

100 USD

The collaboration went smoothly and productively. Clear technical specifications, quick feedback, and adequate requirements. Thank you for the project, I recommend the client.

5.0

Kostiantyn Che

2 March

Update the landing page txgo.io

Personal 25 USD

Thank you! Everything went wonderfully!

5.0

Kostiantyn Che

28 November 2025

Creation of a landing page for a fintech project

156 USD

Thank you! Everything went well! Quick communication and clear project brief!

5.0

Kostiantyn Che

19 September 2025