Senior / Staff iOS Engineer

Illumia; Limerick; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid working model

Private Health Insurance

Dental Insurance

Matched Pension Contribution

25 Days Annual Leave

Employee Assistance Program

Job summary

Illumia is seeking a Senior or Staff iOS Engineer to join the eAccounts Mobile Development team. You will set technical direction for the iOS app used by millions of students and staff, while mentoring engineers and raising engineering quality across the team.

You will work with product managers, UX/UI designers, backend engineers, and QA, contributing to end‑to‑end feature delivery and system improvements. This hybrid role offers growth and impact across campuses.

Qualifications

• Bachelor's degree or equivalent in CS/related field.
• 5+ years of professional iOS development.
• Strong knowledge of Swift/SwiftUI and clean code practices.
• Experience with RESTful APIs, JSON, and testing.
• Ability to lead design reviews and mentor engineers.

Responsibilities

• Design, develop, test, and maintain the iOS app with Swift, SwiftUI, and UIKit.
• Collaborate with product, design, and backend teams to ship features end‑to‑end.
• Perform code and design reviews and promote team best practices.
• Mentor engineers and raise engineering quality across the team.
• Stay current with iOS trends and evaluate new Apple technologies.
• Monitor performance and push improvements to CI/CD pipelines.
• Contribute to architecture decisions and ownership of major components.
• Lead or participate in interviews for new engineers.

Skills

Swift

SwiftUI

UIKit

RESTful APIs

XCTest

Object‑oriented programming

Mentoring

English communication

Education

Bachelor's degree in CS/Software Eng or related field

Equivalent practical experience

Tools

Xcode

Git

GitHub Actions

Xcode Cloud

Combine

Swift Data

CI/CD

Job description

Who We Are

Illumia is an industry leader in bringing the best integrated technology solutions to education, healthcare, and business campuses worldwide. Illumia was built on the collective expertise of two legacy cultures, and brings together people, technology, and insight to pioneer the art of the experience across the communities we serve. Be a part of this exciting organization and improving the lives of people doing mission‑critical work.

Why join our team?

We strive to provide the best customer experience in the industry and have succeeded with a single, strong motivating principle: We serve our user community.

Our success and growth are directly attributed to our people. Our newly named company is dedicated to fostering a culture of integrity, respect, and continuous personal development. We maintain an entrepreneurial spirit, where creativity, innovative problem‑solving, and learning agility drive our day‑to‑day actions.

What You Will Be Doing

Job Summary / Purpose

We are seeking a Senior or Staff iOS Engineer to join the eAccounts Mobile Development team as an engineer on our iOS platform. In this role, you will help set technical direction for the eAccounts mobile app, used by millions of students, faculty, and staff to manage their campus accounts across university campuses, while mentoring engineers and raising the bar on engineering quality across the team.

Who You Will Work With

You will work closely with the eAccounts Mobile Development team, reporting to Shane O'Connor. Day‑to‑day, you'll collaborate with product managers, UX/UI designers, backend engineers, and QA, and regularly engage with other senior stakeholders across the wider engineering organization. This is an individual contributor role with no direct reports, though you will have the opportunity to mentor and coach less experienced engineers across the organisation.

Key Responsibilities and Duties

• Design, develop, test, and maintain the application using Swift, SwiftUI and UIKit, with a strong command of the application architecture across the stack.
• Collaborate with product managers, designers, and backend engineers to build and ship features end‑to‑end, representing iOS engineering in cross‑functional planning.
• Perform code reviews and design reviews, set and uphold team best practices, and mentor other engineers through feedback and pairing.
• Work with modern iOS tools and libraries (Swift Data, Async/Await, Combine), and evaluate emerging Apple technologies for their applicability to our platform.
• Design and develop larger, more complex system components and features, working independently with limited oversight.
• Monitor app performance and usage metrics to identify, prioritize, and resolve issues, ensuring the application meets performance, quality, and responsiveness standards.
• Drive improvements to development processes, CI/CD pipelines (Github Actions & XCode Cloud) and tooling, and participate in interviews for new engineering candidates.
• Strong understanding of Swift Package Manager and package development
• Stay current with the latest iOS development trends, tools, and technologies, and bring that knowledge back to raise the bar for the team.

What You’ll Bring

Required Skills and Qualifications

• Education: Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• Experience: 5+ years of professional experience in iOS development, with a demonstrated track record of technical ownership.
• Strong knowledge of Swift and SwiftUI, with the ability to write clean, maintainable, and testable code.
• Solid understanding of XCTest, UIKit, SwiftUI, Apple Frameworks and programmatic UIs.
• In-depth understanding of object‑oriented and protocol‑oriented programming principles.
• Experience with RESTful APIs, JSON and Network proxies.
• Experience with version control systems (e.g., Git) and code collaboration platforms (e.g., GitHub).
• Experience writing automated tests using XCTest and the iOS UI Test kit (XCUITest) to drive UI automation, ensuring application quality and preventing regressions.
• Understanding of the full mobile development life cycle, including deployment and app store submission.
• Excellent communication and fluency in written and spoken English are required.
• The ability to interpret technical requirements and translate them into structured, actionable work tasks.
• Demonstrated experience leading the design and development of larger, more complex system components with limited supervision.
• Experience coaching or mentoring other engineers, and comfortable leading code and design reviews.

Nice to Haves

• Familiarity with Reactive Programming (e.g. Combine).
• Experience maintaining and improving legacy codebase, with a focus on refactoring and best practices for modernization.
• Familiarity with CI/CD tools, e.g. GitHub Actions, Xcode Cloud.
• Familiarity with WCAG compliance guidelines and accessibility UX best
• Experience owning product architecture and system‑level design decisions, working with limited oversight from management.
• Track record of influencing engineering standards, practices, or procedures beyond a single team.
• Experience mentoring engineers at multiple levels of experience, including other senior engineers.

Competencies and Behaviors

Role Competencies

• Technical Ownership: takes accountability for the design, quality, and long‑term health of the systems they build.
• Mentorship & Coaching: raises the bar for the team by developing other engineers through code review, pairing, and feedback.
• Cross‑Functional Collaboration: works effectively with product, design, and backend partners to ship end‑to‑
• Communication: explains technical decisions clearly to both technical and non‑technical stakeholders.
• Adaptability & Growth Mindset: adjusts to shifting priorities and ambiguity, and continuously builds their own skills.
• Innovation: stays current with emerging technologies and looks for opportunities to improve the platform and team practices.

What You Get When You Join Our Team

• Collaborative and supportive work environment
• Ongoing professional development and training opportunities
• Hybrid working model
• Regular social, sporting, and community events
• Private Health Insurance
• Dental Insurance
• Matched Pension Contribution
• 25 Days Annual Leave
• Comprehensive Employee Assistance Program

This job description is not designed to contain a comprehensive listing of activities, duties, or responsibilities that are required. Nothing in this job description restricts management's right to assign or reassign duties and responsibilities at any time.

Transact is an equal employment opportunity/affirmative action employer and considers qualified applicants for employment without regard to race, gender, age, color, religion, national origin, marital status, disability, sexual orientation, or any other protected factor