Job Description

At Robots & Pencils, we're looking for a Senior iOS Engineer to work on real-time document delivery and synchronization within mission-critical mobile applications. You'll focus on building and maintaining systems that ensure train crews have reliable, timely access to critical documents, even in offline or high-latency environments.



This is a senior, hands-on role where you'll leverage your expertise in Swift/SwiftUI, APNS, and real-time data synchronization to design, implement, and troubleshoot complex document management solutions. You'll also work on offline-first architectures, data persistence strategies, and conflict resolution to guarantee the integrity and availability of time-sensitive information.

Key Responsibilities

Design and implement real-time document synchronization solutions for mobile applications

Integrate and troubleshoot APNS (Apple Push Notification Service) for timely document delivery

Develop offline-first architecture and data persistence strategies for critical documents

Assess, diagnose, and recommend technical solutions for complex data sync challenges

Maintain and enhance document management and delivery systems within iOS applications

Apply Swift/SwiftUI expertise to develop scalable and reliable mobile features

Evaluate alternative approaches to real-time communication and document synchronization

(Optional / Nice to Have) Maintain UIKit/Storyboard components and manage iOS version compatibility updates

Ensure document versioning, conflict resolution, and reliability for mission-critical applications

Collaborate closely with cross-functional teams to deliver high-quality, production-ready solutions

Required Skills & Qualifications

Advanced understanding of APNS (Apple Push Notification Service) implementation and troubleshooting

Expertise in real-time document synchronization solutions and architectural patterns

Experience with document management and delivery systems in mobile applications

Strong ability to assess, diagnose, and recommend technical solutions for complex data sync challenges, particularly for time-sensitive document delivery

Proficiency in Swift/SwiftUI for iOS development

Understanding of offline-first architecture and data persistence strategies for critical documents

Problem-solving skills for evaluating alternative approaches to real-time communication and document sync

Nice to Have

Experience with UIKit/Storyboards

Familiarity with iOS version compatibility updates

Background in mission-critical or safety-sensitive applications

Experience with document versioning and conflict resolution

Why Join Robots & Pencils?

At Robots & Pencils, we don't just build software; we create meaningful technology that helps people live healthier lives. You'll work alongside passionate engineers, designers, and innovators in a collaborative, remote-friendly environment. With continued growth, now is the perfect time to join our team and make a direct impact on the future of digital health.