endorsedCompleted

Mobile Wallet App Development and DeFi Integrations

Services Covered:

Custom Software Development • Staff Augmentation • Mobile Application Development

Industry

Financial Services

Duration

4 months

Budget

10K - 49K

Start Date

1 May 2022

Team Size

1-5 Employees

Engagement Model

Offshore

Project Capability Score (PCS)

78/100

Good

Project Capability Score (PCS) estimates how capable Mad Devs is of successfully delivering a project like this, based on its past experience, track record, and ability to handle similar work. Learn more about PCS

Client

Confidential

Wilmington, United States of America

Project Summary

Mad Devs augmented a self-custody mobile wallet's engineering team to accelerate development from an MVP and deliver DeFi integrations. They implemented Balancer protocol integration and NFT-based referral functionality, improved error visibility with Sentry, and used Python (FastAPI) for backend development. The engagement included CI/CD setup and extensive test coverage, and the vendor's structured, communicative approach contributed to increased user numbers.

Key Challenges

Accelerate development from MVP to the next version of the app
Bring in engineers with DeFi expertise to integrate protocols and NFT referral features

Project Deliverables

Integrated Balancer Protocol for fiat deposits/withdrawals, staking and swaps
Implemented NFT-based referral functionality
Integrated SendGrid, Wyre, and Firebase
Integrated Sentry for alerts to Slack
Configured CI/CD with GitHub Actions
Achieved 95% test coverage with pytest

Project Solution

Mad Devs provided team augmentation and hands-on development to extend an MVP mobile wallet. They implemented Balancer protocol integration and enabled NFT usage for referrals, built backend services using Python (FastAPI), added automated tests (pytest), improved error visibility with Sentry alerts, and configured CI/CD pipelines with GitHub Actions. Staffing included two full-time backend developers, a project manager for processes and documentation, and delivery-manager support; communication was primarily asynchronous via Slack with sprint planning and retrospectives.

Project Outcome

Integrated Balancer Protocol for fiat onramp, staking and token swaps
Implemented NFT-driven referral flow that increased the percentage of users who initiate referrals
Completed SendGrid, Wyre, and Firebase integrations
Integrated Sentry.io to send alerts to Slack
Configured CI/CD pipelines using GitHub Actions
Achieved 95% test coverage using pytest
Increased number of users

Platforms

Mobile
Web

Tech Stack

Python
Fast API
Firebase
GitHub Actions
Pytest

Client Endorsement

Overall Review Rating

4.63

Timeliness

Cost Rating

Willing to Refer

Quality of Deliverables

“Mad Devs used a variety of technologies to deliver a solution that increased the number of users. They were proactive and communicative, working closely with the client to understand the product and current business priorities. They also had a structured process, which made the engagement smooth.”
Archisman Das
Co-Founder
Date: 09/21/2022