At a Glance
- Tasks: Reconstruct mobile architecture and assess systems using structured modelling approaches.
- Company: Join a forward-thinking tech company with a hybrid work culture.
- Benefits: Competitive pay, flexible working, and opportunities for professional growth.
- Other info: Opportunity to extend beyond the initial 8 weeks in a fast-paced setting.
- Why this job: Make a significant impact on mobile architecture in a dynamic environment.
- Qualifications: Experience in mobile architecture, particularly iOS, and strong stakeholder management skills.
The predicted salary is between 51750 - 63250 £ per year.
My client is looking for an experienced mobile architect to join their team on an initial 8 week piece of work with a good possibility to extend. This is a hybrid role and is outside of IR35.
Key Responsibilities:
- Able to reconstruct architecture of large existing systems from code, interviews and incomplete artefacts - demonstrable, with examples.
- Fluency in structured modelling approach (C4, arc42, UML, ADRs).
- Documentation-as-code tooling, diagramming tools, Confluence/Miro.
- Defining architecture characteristics and quality attributes, and assessing a system against them.
- Platform bias: iOS depth expected. Must be conversant enough in Android to challenge and review docs and assessment findings.
- iOS (primary depth): Swift, UIKit and SwiftUI in large production apps; understands the realities of a mixed UIKit/SwiftUI estate.
- Modularisation at scale: SPM, Xcode workspaces, Tuist/XcodeGen, XCFrameworks, module boundary and dependency management.
- Hands-on experience of architectural patterns in large production apps (MVVM, VIPER, TCA, Clean-style layering), and the ability to identify which one a codebase follows.
- Build, signing and distribution mechanics; profiling and performance analysis.
- Android (working knowledge): Kotlin, Jetpack Compose, Gradle multi-module builds: enough to read, question and validate, not necessarily to write.
- Backend, API and integration: Mobile-to-backend integration patterns: BFF, API gateway, REST/GraphQL/gRPC, versioning and contract management.
- Identity and authorisation: OAuth 2.0, OIDC, token lifecycle, session management, step-up authentication; FAPI and Open Banking awareness.
- Understanding of how a bank's mobile app sits on top of core banking, payments and legacy estates, including mainframe-fronted services.
Essential non-technical skills:
- Executive stakeholder management: can hold a room with CTO-level stakeholders, present findings without softening them or turning them into an accusation.
- Elicitation under resistance - gets useful answers from people who suspect they are being assessed.
- Written clarity for mixed audiences.
- Scope discipline: recognizes rabbit holes early and closes them protecting a fixed-price approach.
- Independent judgement: willing to state a conclusion on partial evidence, and to label clearly where confidence is low.
- Pace: comfortable producing a defensible first cut in week two for discussion and refining, rather than perfecting until week seven.
- Fluent professional English, spoken and written.
Nice to have:
- Prior delivery inside a UK or EU retail bank, or comparably regulated environment.
- Experience of a mobile platform modernisation or re-platforming programme, in either direction.
- Cross-platform estates: Kotlin Multiplatform, React Native, hybrid/webview components.
- Consultancy background; experience scoping and defending fixed-price work.
Mobile Architect - Outside IR35 in London employer: Hydrogen Group Careers
Join a leading financial services organisation that prioritises innovation and collaboration, offering Data Engineers the chance to work on transformative projects within Wealth and Asset Management. With a strong focus on employee growth, modern engineering practices, and AI-assisted development, you'll be part of a dynamic team that values your expertise and encourages you to take ownership of impactful data solutions. Enjoy a supportive work culture that fosters creativity and provides excellent opportunities for career advancement in a rapidly evolving industry.
StudySmarter Expert Advice🤫
We think this is how you could land Mobile Architect - Outside IR35 in London
✨Get Involved in Open-Source Projects
Diving into open-source projects is a brilliant way to showcase your skills and connect with other developers in the community. Not only will you beef up your GitHub profile but you might also catch the eye of someone at Hydrogen Group Careers who values hands-on experience over just theory.
✨Attend Local Tech Meetups
Tech meetups are gold mines for networking and discovering job opportunities, especially in the fast-paced world of software engineering. Check out local listings for events in your area and don’t shy away from introducing yourself. This could lead directly to a temporary position at Hydrogen Group Careers!
✨Showcase Your Work Online
With temporary roles, it’s all about standing out in a short space of time. Create a portfolio website where you highlight your projects and skills. Talk about your code, and provide links to your GitHub repositories. This will not only demonstrate your abilities but will also make it easier for recruiters at Hydrogen Group Careers to see what you bring to the table.
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We think you need these skills to ace Mobile Architect - Outside IR35 in London
Some tips for your application 🫡
Show Off Your Tech Skills:Make sure your CV highlights your tech stack and any programming languages you’re proficient in. Include specifics about any frameworks or technologies you’ve worked with; they can make you stand out in the sea of applicants. It’s all about showing that you have the chops we need at Hydrogen Group Careers!
Portfolio 2.0:Since you’re applying for a temporary gig, it’s super important to showcase a portfolio that highlights your best projects. Include links to GitHub or any personal projects that demonstrate what you can do in a real-world environment. This gives us a taste of your style and your problem-solving approach!
Keep It Brief and Relevant:With a temporary position, we want to see your ability to hit the ground running. Be concise in your CV and cover letter; stick to experiences that directly relate to the role. Highlight any previous temporary roles or freelance gigs that show your adaptability and quick learning!
Tailor Your Cover Letter:Don’t just send a generic cover letter. Personalise it for Mobile Architect - Outside IR35 at Hydrogen Group Careers! Mention why this temporary role excites you and how you see yourself contributing in the short run. Show us what you've got and why you're the one for this quick turn-around!
How to prepare for a job interview at Hydrogen Group Careers
✨Nail the Technical Skills
For a software engineering role, you'll likely face technical questions or coding tasks during your interview. Brush up on the relevant programming languages and frameworks that Hydrogen Group Careers uses, and don’t forget to practice some coding challenges on platforms like LeetCode or HackerRank. Showing your coding prowess can really make you stand out!
✨Prepare for System Design Questions
Even for a temporary role, having a grasp of system design principles can be crucial. Be ready to discuss how you would architect a software solution, including discussing trade-offs, scalability, and performance considerations. Having examples from previous projects can really show off your analytical thinking.
✨Demonstrate Your Adaptability
Since this is a temporary role, you'll want to emphasise your ability to hit the ground running. Highlight experiences where you quickly adapted to new technologies or teams. Let’s make it clear to the interviewers at Hydrogen Group Careers that you can learn on the job and deliver results in a short timeframe!
✨Show Off Your Portfolio
Make sure to have a portfolio or GitHub ready showcasing your projects. Having tangible evidence of what you've done—be it personal projects, contributions to open-source, or previous work—can convey how capable you are. Tailor this for what might interest Hydrogen Group Careers, so it's relevant and sparks conversation during your interview.
