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iOS developer with 8+ years modernizing legacy codebases and stabilizing established apps — from Objective-C- to-Swift migrations to Intel-to-Apple Silicon transitions. Owns technical direction end-to-end, from stakeholder align- ment to App Store publishing.…

OSMIN VAZQUEZ

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iOS developer with 8+ years modernizing legacy codebases and stabilizing established apps — from Objective-C- to-Swift migrations to Intel-to-Apple Silicon transitions. Owns technical direction end-to-end, from stakeholder align- ment to App Store publishing.…

Available to hire

iOS developer with 8+ years modernizing legacy codebases and stabilizing established apps — from Objective-C-
to-Swift migrations to Intel-to-Apple Silicon transitions. Owns technical direction end-to-end, from stakeholder align-
ment to App Store publishing.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Intermediate

Spanish; Castilian

Advanced

Work Experience

Principal iOS Developer at Children’s Hospital of Philadelphia

January 1, 2025 - January 1, 2026

Developed a medical research app implementing a real-time data processing pipeline: from Bluetooth hardware polling to parallel UI graphing and RESTful API integration. Resolved an AI code-generation productivity bottleneck by implementing a scalable agentic coding workflow, sustaining well-architected code and consistent deliverable throughput. Owned technical direction end-to-end and focused on stability and maintainability for production delivery.

iOS Product Developer at Bomart

January 1, 2024 - January 1, 2025

Managed full project lifecycle including proposal, contract terms, and custom app delivery. Built features including local authentication, multichannel notifications, geo localization, map pinning, and device-user binding. Leveraged Apple Business Manager for device management, account and app deployment to streamline enterprise distribution.

Lead iOS Developer at DigInn

January 1, 2022 - January 1, 2023

Led iOS development initiative and reduced crash rate to near zero through CI/CD across 20+ releases. Migrated a legacy Intel project to Apple Silicon, removing a long-standing blocker and improving team velocity. Implemented analytics, A/B testing, and push notifications using Firebase, and reduced build times while streamlining QA workflows through build schemes.

Senior iOS Developer at Numerator

January 1, 2021 - January 1, 2022

Bridged legacy Objective-C key functionality to Swift and led the introduction of SwiftUI + Combine. Defined and enforced MVVM + Rx architecture patterns to improve maintainability and consistency. Unblocked an iOS deployment target bump by reducing technical debt and modernizing key parts of the codebase.

iOS Developer at L3 Royal Caribbean

January 1, 2019 - January 1, 2021

Supported multiple small teams by enforcing coding best practices and reusable design patterns. Contributed to backend migration while maintaining reusable code across app targets. Coordinated with international teams to align local compliance requirements with the global strategy.

Tech-Lead iOS Developer at BBVA

January 1, 2018 - January 1, 2019

Promoted from junior developer to tech-lead within a year, taking ownership of features using VIPER and RxSwift with strict code coverage requirements. Conducted interviews and supported onboarding as the team grew, setting engineering standards for quality and maintainable architecture.

Back-End + Sys Admin at Connected B2B

January 1, 2017 - January 1, 2018

Established the company’s technical infrastructure on AWS. Designed APIs and built backend services using Node.js + MongoDB to support B2B workflows.