Mobile Architect - Outside IR35 in Vauxhall

Mobile Architect - Outside IR35 in Vauxhall

Vauxhall Full-Time On-site
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Reference: JN - 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.

Hit Apply below to send your application for consideration Ensure that your CV is up to date, and that you have read the job specs first.

This is a hybrid role and is outside of IR35.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 integrationMobile-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 skillsExecutive 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 xohmjla 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 havePrior 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 Vauxhall employer: Hydrogen

Join a leading financial services organisation that prioritises innovation and collaboration, offering you the chance to work on a transformative data engineering programme. With a strong focus on employee growth, you'll have access to excellent career development opportunities while working in a modern cloud environment that embraces AI-assisted development. Enjoy a dynamic work culture where your contributions directly impact investment decision-making and regulatory reporting, all within a supportive team of experts.

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Contact Details:

Hydrogen Recruitment Team