Principal Software Engineer

 

Description:

As a Principal Android Engineer on the Card Readers team, you will be a technical leader responsible for designing, developing, and maintaining our Android-based payment integrations. You will work closely with hardware vendors, Android OS engineers, the core POS application team, and other cross-functional stakeholders to drive technical decisions and define the target architecture for our payment solutions. Your expertise in Android development, coupled with a deep understanding of payment systems, will be crucial in delivering robust and scalable solutions.

About this roll*: (Responsibilities)
 

  • Architect, design, and develop robust, high-performance Android applications using Kotlin.
  • Lead technical discussions and decisions on Android best practices, performance optimizations, and security.
  • Collaborate with cross-functional teams (backend, product, UX/UI, QA) to deliver seamless payment experiences.
  • Optimize mobile payment flows for security, speed, and reliability.
  • Shape the face of development at Toast by helping to balance building maintainable software for long term success, with the need to deliver value to customers in an iterative fashion.
  • Ensure compliance with PCI-DSS, security best practices, and other financial industry standards.
  • Mentor and guide junior engineers, conduct code reviews, and drive best practices in mobile development.
  • Troubleshoot and resolve complex technical issues, ensuring high availability and performance.
  • Participate in agile development processes, including sprint planning, daily stand-ups, and retrospectives.
  • Stay up to date with emerging Android technologies, frameworks, and trends.
     

Do you have the right ingredients*? (Requirements)
 

  • Strong proficiency in Kotlin and modern Android frameworks (Jetpack, Coroutines, Flow).
  • Deep understanding of Android architecture components, MVVM, and Clean Architecture.
  • Strong knowledge of Android security best practices and secure data storage.
  • Familiarity with mobile payment processing, tokenization, NFC, and EMV standards (a plus).
  • Experience working with third-party payment gateways, in-app purchases, or POS integrations (a plus).
  • Excellent communication and collaboration skills, with the ability to work effectively with cross-functional teams.
  • Strong problem-solving skills and ability to work in a fast-paced, agile environment.

Organization Toast
Industry IT / Telecom / Software
Occupational Category Principal Software Engineer
Job Location Dublin,Ireland
Shift Type Morning
Job Type Full Time
Gender No Preference
Career Level Intermediate
Experience 2 Years
Posted at 2025-07-31 6:26 am
Expires on 2025-09-14