Poland

iOS Engineering

Security Engineering

Federal University of Pernambuco

Jobert Sá

Principal Software Engineer

GitHub

Prototyping

Communication

Collaboration

Problem-solving

Time management

Critical-thinking

Empathy

Team player

Organisation skills

Conflict resolution

Leadership

Human computer interaction

Integration Testing

Unit Testing

Python

Swift

Canva

ChatGPT

Figma

HTML

Jira

Jupyter Notebook

Mailchimp

Matlab

Notion

Confluence

GitLab

gRPC

REST API

- I provide in-depth technical mentoring on iOS development topics including Swift, SwiftUI, Combine, UIKit, and Core Data. I also assist mentees in understanding and applying advanced concepts and best practices;
- I assist mentees with personal and professional projects, offering feedback on code quality, architecture, and design patterns. Helped troubleshoot issues and provided solutions to complex technical challenges;
- I offer career advice and guidance, including resume reviews, interview preparation, and strategies for career advancement. I help mentees build strong personal brands and network within the tech community;
- I encourage and guide mentees in contributing to open-source projects. I review contributions, provided constructive feedback, and helped mentees navigate the open-source ecosystem.

• Created frameworks widely used across the organization
• Implemented an automated solution to check hundreds of libraries and maintain them up-to-date
• Raised code coverage above 90% in all projects I worked
• Improved code maintainability by reducing cyclomatic and cognitive complexities to the minimum
• All this positive impact helped bring the flagship UK app to over 1.4 million reviews, with a stellar 4.8 rating

• Quickly delivered new features for three variants of an AI-driven iOS app treating physical pain
• Refactored code base to facilitate test writing and improve maintainability
• Authored technical requirements and documentation to support team development processes
• Enhanced development workflows with improved feature flagging, dependency injection, and branching strategies, enabling asynchronous development and testing
• Implemented A/B testing scenarios, resulting in a 20% increase in user retention.

• Led a cross-platform development team, ensuring timely delivery of high-quality apps
• Designed and implemented a robust SDK for seamless integration with high-end IoT devices
• Enhanced app quality with comprehensive unit and UI tests integrated into the CI pipeline
• Reduced development effort and time to deliver with a cross-platform SDK to share APIs and resources

• Contributed to achieving a 4.6-star rating with 200K+ reviews, and securing the top spot on the Canadian AppStore
• Developed a feature-flag system that boosted user engagement and retention
• Refactored the app architecture from MVC to MVVM using RxSwift for improved code maintainability and scalability

• Led a team of 10 cross-platform mobile developers, ensuring cohesive development
• Collaborated with stakeholders to design robust application architecture
• Implemented core features shared between iOS and Android platforms
• Developed offline mode and synchronization mechanisms, enhancing user experience and retention

• Collaborated with diverse North American clients across various industries
• Served as a team leader in cross-functional teams (iOS,
Android, QA), driving architecture design and implementation of core features from scratch
• Developed Proof-of-Concept features, showcasing innovative solutions
• Mentored junior developers, fostering their growth and enhancing team capabilities

Implemented an iOS application called Vegas, which the users could use to bet/gambling on various games also developed by the company. This application could be dynamically customised during runtime, thanks to a configurable UI. The application was written in both Objective-C and Swift.

I developed security apps used by millions of users, implemented libraries using C, C++, Objective-C and Swift, for custom encryption mechanisms and communication protocols used across other projects in the company. I created a private cocoapods repository to maintain all dependencies.

Implemented various iOS applications for banks, betting companies and sports news.

Developed applications and games for iPhone and iPad, and small websites.

Cris Messias

junior iOS Developer

Rachel

Self Employed, Full Stack, Social Media Management

Riyasaat Ahmed Rahul

React Developer

Nam Choi

Lead Experience Engineer

Miracle Kalu

Product designer

Amy Chen

Research Assistant / Engineer

In our mentoring session, we’ll focus on your specific needs - whether it’s code reviews, interview preparation, project guidance, or career advice. I’ll provide tailored insights, practical tips, and honest feedback to help you grow and navigate challenges with confidence.

30 min session

Please book first a 30 min session so I can evaluate your needs better. After that we’ll see if this longer session is needed. This is a longer session, special for mock interviews and resume reviews, so there’s enough time to go through everything. In our mentoring session, we’ll focus on your specific needs - whether it’s code reviews, interview preparation, project guidance, or career advice. I’ll provide tailored insights, practical tips, and honest feedback to help you grow and navigate challenges with confidence.

Jobert Sá🇵🇱

About Jobert Sá

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