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iOS Engineer - Engine by Starling

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. 

Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business. 

Starling Bank has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success.

Our technologists are at the very heart of Engine and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Engine is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, and discovering to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Engine - our preference is that you're located within a commutable distance of our offices so that we're able to interact and collaborate in person.

About Engineering at Engine by Starling - https://www.enginebystarling.com/

We’re looking for iOS Engineers to work on the Engine Platform and make our existing features work for banks all over the world as well as building new features from scratch that Starling hasn’t released in the UK market.

Engine by Starling engineers are excited about helping us deliver new features, regardless of what their primary tech stack may be. Hear more from the team in some case studies below, and our work with Women In Tech.

We are looking for engineers at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they can make to banking around the world. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Engine, to continue changing banking for good.

As an Engineer you will:

  • Contribute to our award winning platform and internal tooling
  • Build new features and products from scratch in a configurable way
  • Share your knowledge with those around you, contributing to our learning culture
  • Own your projects, working in small teams across the bank to collaboratively deliver
  • Aim for greatness in everything you do, staying curious and inquisitive
  • Be part of a scaling team and organisation as we change banking for good

Our iOS application is entirely written in Swift. It is highly modular and we use MVVM-C architecture to maximise code reusability and testing. We also value simplicity over complexity, fewer moving parts means fewer faults and easier comprehension.

Some of the well known frameworks and tools we use:

  • RxSwift - as our reactive programming framework;
  • SnapKit - as our auto layout DSL, though we have an in-house framework built on top of SnapKit which allows us to write declarative, SwiftUI like layout code for UIKit.
  • Realm - as the application main persistence layer;
  • Sourcery and SwiftGen - for various code generation tasks.
  • SwiftFormat, SwiftLint and Danger - to enforce high code quality standards.
  • Etc.

We also built in-house tools and frameworks as developer productivity and automation is paramount to us.

We are looking for iOS engineers to work on these apps who:

  • Want to work on a feature rich mobile app with millions of customers;
  • Can produce robust, well tested code that will give our customers the reliability that they need;
  • Care about the product, the user experience and the design;
  • Think (like us) that a small number of empowered developers is the right way to deliver software;
  • Our application is built with UIKit, knowing its concepts and components is a must.
  • We use RxSwift in our project, experience with reactive programming will be a plus but is not required.

Interview process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • First interview: ~45 minutes
  • Take home technical test (no time limit)
  • Technical face to face: ~2 hours
  • Final Interview: ~45 minutes
  • 33 days holiday (including public holidays, which you can take when it works best for you)
  • An extra day’s holiday for your birthday
  • Annual leave is increased with length of service, and you can choose to buy or sell up to five extra days off
  • 16 hours paid volunteering time a year
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary & group income protection
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Incentives refer a friend scheme
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

About Us

You may be put off applying for a role because you don't tick every box. Forget that! While we can’t accommodate every flexible working request, we're always open to discussion. So, if you're excited about working with us, but aren’t sure if you're 100% there yet, get in touch anyway. We’re on a mission to radically reshape banking – and that starts with our brilliant team. Whatever came before, we’re proud to bring together people of all backgrounds and experiences who love working together to solve problems.

Engine by Starling is an equal opportunity employer, and we’re proud of our ongoing efforts to foster diversity & inclusion in the workplace. Individuals seeking employment at Engine by Starling are considered without regard to race, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, physical or mental disability, military or veteran status, or any other characteristic protected by applicable law. 

When you provide us with this information, you are doing so at your own consent, with full knowledge that we will process this personal data in accordance with our Privacy Notice. By submitting your application, you agree that Engine by Starling and Starling Bank will collect your personal data for recruiting and related purposes. Our Privacy Notice explains what personal information we will process, where we will process your personal information, its purposes for processing your personal information, and the rights you can exercise over our use of your personal information.

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What You Should Know About iOS Engineer - Engine by Starling, Starling Bank

Join us as an iOS Engineer at Engine by Starling, where you will play a vital role in shaping the future of banking through innovative technology! We're on a mission to partner with top banks globally, helping them achieve rapid growth with our robust software-as-a-service (SaaS) offerings, initially crafted to power Starling Bank. At Engine, we thrive in a fast-paced environment where collaboration and creativity are key. As part of our team, you’ll be empowered to take ownership of exciting projects, working on our feature-rich mobile app that serves millions of users. Your experience in Swift and familiarity with UIKit concepts will enable you to produce high-quality, well-tested code, ensuring our customers enjoy a seamless digital banking experience. You’ll collaborate with a supportive, open culture where knowledge sharing is encouraged, and your input matters. With a focus on simplicity and innovation, you’ll leverage tools like RxSwift and Realm to build new features while optimizing current functionalities. We believe in work-life balance, offering hybrid working options, generous holiday allowances, and the opportunity to make a meaningful impact on our global partners. If you are passionate about creating disruptive technology and making banking better for everyone, we’d love to hear from you!

Frequently Asked Questions (FAQs) for iOS Engineer - Engine by Starling Role at Starling Bank
What are the responsibilities of an iOS Engineer at Engine by Starling?

As an iOS Engineer at Engine by Starling, you will engage in developing and maintaining our award-winning iOS application, enhancing features that cater to banks worldwide. Your responsibilities include writing robust code, collaborating with cross-functional teams, sharing knowledge, and participating in design discussions. You will also be involved in building new features from the ground up while ensuring the app runs efficiently for our millions of users.

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What qualifications do I need to apply for the iOS Engineer position at Engine by Starling?

To be considered for the iOS Engineer role at Engine by Starling, you should have a strong background in iOS development, particularly in Swift. Familiarity with UIKit and reactive programming frameworks like RxSwift is advantageous. Candidates should also demonstrate a commitment to producing high-quality code and be eager to work in an innovative environment that values learning and collaboration.

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What is the work culture like for iOS Engineers at Engine by Starling?

The work culture for iOS Engineers at Engine by Starling is vibrant, supportive, and collaborative. We operate under a flat organizational structure, fostering innovation and empowering engineers to take ownership of their projects. Cross-team collaboration is common, and team members are encouraged to contribute to knowledge sharing while aiming for excellence in all aspects of their work.

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What technologies will I work with as an iOS Engineer at Engine by Starling?

As an iOS Engineer at Engine by Starling, you will work extensively with Swift to develop our mobile application, leveraging tools such as RxSwift for reactive programming, and Realm for data persistence. You will also utilize frameworks like SnapKit for layout, and coding standards enforced through SwiftLint, ensuring high-quality and maintainable code throughout the development process.

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What is the interview process for the iOS Engineer position at Engine by Starling?

The interview process for the iOS Engineer position at Engine by Starling is designed to be conversational and informative. It typically involves an initial chat with the Talent Team, followed by a technical test that can be completed at your own pace. Successful candidates will participate in a technical interview and a final discussion to ensure mutual fit. Our goal is to get to know you as much as you get to know us!

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Common Interview Questions for iOS Engineer - Engine by Starling
Can you discuss your experience with Swift and how it applies to your role as an iOS Engineer?

When answering this question, highlight specific projects where you utilized Swift, detailing the functionalities you implemented. Focus on your understanding of Swift's features, how you maintained code quality, and how you ensured the application performed well under various conditions.

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What is your approach to testing and debugging in iOS development?

Outline your strategies for writing unit tests and conducting UI testing in your applications. Discuss any tools you use, such as XCTest, and elaborate on how debugging tools like Instruments help you monitor app performance and catch issues early in the development lifecycle.

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How do you ensure your code is maintainable and scalable?

Provide examples of code practices you adhere to, such as following SOLID principles, using design patterns, and documenting code. Explain how you manage dependencies and modularization in your projects to make future changes smooth and prevent technical debt.

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Describe a challenging project you worked on and how you overcame the difficulties?

Choose a specific project that posed unique challenges, mentioning the technical hurdles or team dynamics you faced. Detail the steps you took to address these issues, focusing on collaborative problem-solving and the impact of your solutions on the project outcomes.

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What is your familiarity with reactive programming, specifically RxSwift?

Discuss your experience with RxSwift, if applicable. If you haven't used it directly, explain your understanding of reactive programming principles and how they can enhance app responsiveness. Provide any relevant examples or resources you've explored to demonstrate your initiative to learn.

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How do you prioritize features and tasks when working on a project?

Illustrate your method for prioritizing work, emphasizing the importance of stakeholder input, user impact, and aligning with team goals. Discuss any project management tools you’ve used and how you adapt based on evolving project requirements.

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What steps do you take to stay updated on iOS development trends?

Share specific platforms you use to follow iOS development news, online communities you engage with, or conferences you attend. Emphasize your commitment to ongoing learning and how this knowledge influences your development practices.

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How would you improve an existing feature in a mobile application?

Talk through your process for gathering user feedback, analyzing performance metrics, and identifying pain points in current app features. Discuss your approach to brainstorming solutions, conducting A/B tests, and measuring the effectiveness of improvements.

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Can you give an example of how you've collaborated with cross-functional teams?

Highlight specific projects where you collaborated with product managers, designers, or QA testers. Discuss how you communicated effectively across disciplines and the positive impact of collaboration on the project outcomes.

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What motivates you as an iOS Engineer?

Reflect on your passion for technology, problem-solving, and creating impactful applications. Provide examples of projects that excited you and demonstrate your enthusiasm for developing solutions that enhance user experience.

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Our mission is to create a bank that guides and informs you towards better decisions. By giving you real-time insights, Starling enables you to understand your financial life in a whole new way.

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Full-time, hybrid
DATE POSTED
January 12, 2025

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