Mobile Application for Brokerage Clients

Expertise:

Mobile Development

FinTech

UI/UX Design

Tech Stack:

Swift (iOS)

Kotlin (Android)

Java (Backend Services)

Client: Major Banking Institution

One of the region’s largest banks, offering a wide range of financial services to both retail and corporate customers. As part of its digital transformation strategy, the bank set out to launch its first proprietary brokerage product — a mobile solution designed to serve a growing base of investment clients.

About the Client

The goal was to develop a cutting-edge mobile app for investors and traders — a solution built from scratch, avoiding off-the-shelf products. The app had to reflect the bank’s premium identity, deliver an intuitive user experience, and support real-time access to market data and trading insights. As the bank’s first standalone brokerage app, it needed to be secure, scalable, and visually striking.

Project Overview

Challenges & Objectives

The development team was tasked with building a fully custom mobile application tailored to brokerage clients. Key objectives included:

Designing a stylish, modern user interface that aligned with the bank’s brand.
Implementing multiple types of trading charts (line, candlestick, etc.).
Ensuring real-time market data via WebSockets.
Delivering native, high-performance apps for iOS and Android.
Integrating with the bank’s internal brokerage and trading systems.
Guaranteeing enterprise-level data security.
Laying the groundwork for future scalability (portfolio analytics, push notifications, multi-portfolio support).

Implementation

The app was developed entirely from scratch, with no reliance on pre-built frameworks or design systems:

01

Built natively using Swift for iOS and Kotlin for Android, ensuring a responsive and fluid user experience.

02

Used Java on the backend to develop secure APIs and integrate with internal brokerage systems.

03

Integrated WebSockets to deliver live quotes and real-time trading updates.

04

Developed custom interactive charts with zoom, pan, and historical data views (line, candlestick, etc.).

05

Designed a bespoke UI with a clean, premium look — optimized for both light and dark modes.

06

Implemented OAuth 2.0 and JWT authentication, with full encryption of all user data and API communications.

07

Adapted the app for various screen sizes and devices, ensuring consistent UX across platforms.

08

Conducted comprehensive QA and usability testing with both internal teams and live user groups.

Outcomes & Business Impact

The launch of the brokerage mobile app marked a major milestone in the bank’s digital journey. Notable outcomes included:

Smooth rollout on both iOS and Android with user ratings of 4.8+ in app stores.
25% increase in client engagement with brokerage services within the first 3 months post-launch.
Boosted customer loyalty through enhanced functionality and seamless user experience.
Established a robust technical foundation for future features like investment insights, portfolio analytics, and alerts.
Positioned the bank as a modern, innovative player in the brokerage space.
Strengthened internal expertise — the app became a benchmark for mobile development across the organization.

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