Oliver Spryn Consultancy

Founder & CEO

UPMC Enterprises

- Landed #4 top medical app in Google Play
- Led Android app architecture growth from 0 to 350K+ active users
- Delivered a telemedicine app at the height of COVID-19 on time and on budget

Lead Android Architect

Inspirata

- Designated as the engineering spokesman to executive leadership
- Created a testing strategy that led to a 3x decrease in product delivery time

Research Software Engineer

Bentley Systems

Software Engineering Intern

Smith Micro Software, Inc.

Quality Assurance Engineering Intern

Teaching 150k+ how to build chart-topping Android apps

I know what it takes to build world-class software.
It starts with a mindset that creates like it's already 2026.

This second-nature thinking has earned me the trust of top companies such as Google, Tesla, Shopify, and Fastly.

Here is my track record:

- Trusted by 1M+ users, with 90M monthly impressions
- Built a $25M production-ready Android app development roadmap

What you can get from me:

- 7+ years of vetted, hardened experience
- An acceleration toolkit to ship your app up to 6-12 months sooner
- Long-range insights that keep your investment in apps fresh and current

Are you building a new Android app or struggling to maintain an old one?

I'll help you build stable, modern apps that both users and engineers love ahead of time and under budget.

Oliver Spryn

act digital

Mobile Developer

Bradesco

LLIÈGE

Company focused on providing public services, more specifically to City Halls in São Paulo State, Brazil. I'm working as Developer and Maintainer of several apps that perform various functionalities of the systems that Lliege has implemented for its customers. To do this, I used to work with several technologies such as:
Kotlin
Jetpack Compose
Swift
SwiftUI
Kotlin Multiplatform(KMM/KMP)
WebView
GitLab

Itaú Unibanco

The largest bank in Latin America, where I worked on its biggest product, the Itaú Banking App for Individuals, as Developer and Maintainer.

My main tasks were:
Develop New Features
Improve Existing Features
And Fix Bugs

Using technologies such as:
Kotlin
Android SDK
Jetpack Components
MVVM
Modularization
SOLID
JUnit
Mockito
Robolectric
Espresso
GitLab
GitHub
CI/CD
Jenkins
JIRA

Android Engineer

NTT DATA Europe & Latam

Working on Itaú Bank on Android App for Individuals

Cloud CRM

Company dedicated for the development and maintenance of technological tools from EcommerceBank such as Systems, Applications, API, etc.
I worked as a Developer on the following products: My Cloud Coin Application and the Banking System.
Technologies:
C# .Net Core
JWT
Entity Framework
NUnit and xUnit
VueJS
Amazon S3
PostgreSQL

Full Stack Developer

Scorpion Company

Company focused on Software Consulting/Software House, where I worked as a Member of the Development Team and Maintenance of the Stock Management System for several Corporate Clients
Technologies:
C# .Net Framework
Windows Forms Application
Metro Framework UI
Bunifu Framework
MySQL

Software Developer

CTU Team

The Timoteo Ulica College decided to internalize the Development of their School Management System, where I worked as a Member of the School Management System Development and Maintenance Team. Using the following technologies:
C# .Net Framework 
Windows Forms Application
SQL Server
MySQL
Kanban

I'm so passionate to solve Problems with Software Development!
I had worked with several Areas of Software Development since 2019;
I started with Software Development Desktop, after that I also had a great experience with Web Development, but focused performances in  Backend side.

I am currently working in Mobile Development Role!
Loving native technologies such as: Jetpack Compose and SwiftUI combining them using Kotlin MultiPlatform (KMP/KMM)
But I also have worked with Compose Multiplatform for Multiplatform Development Role.

taplio

The Battle

Oliver Spryn

Lito Bumba

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