Mobile Application Developer

5 days ago


United Kingdom YunoJuno Full time

Tech Consultancy / Mobile SDK Engineer (Swift, Android, Objective-C, Kotlin) / Contract


About the Project:

● Client is an open banking payments network, providing real-time payments, data and identity APIs across the UK and Europe.

● The work is to support the companies mobile application development through SDK upgrades


About the Candidate:

● They will have demonstrable experience of updating and maintaining mobile SDKs for optimal performance and compatibility.

● Have the ability to work independently and with minimal supervision to meet deadlines and project goals.

● Strong problem solver and critical thinker under pressure.

● Be a proactive communicator and collaborator with the Lead Mobile Engineer and other team members.

● Continuously seek to improve the quality and reliability of the client’s mobile offerings.

● Will have a commitment to ongoing learning and development in mobile engineering and open banking technologies

● BONUS: Display a strong understanding of open banking principles and how they apply to mobile development.

● BONUS: Display a strong understanding of data standards

● BONUS: Display a strong understanding of identity verification


Must have demonstrable experience of:

Kotlin - proficient

● Jetpack Compose - proficient

● Coroutines, Flows - proficient

● Retrofit - proficient

● RoomDB - proficient

Swift - expert

Objective-C - expert

● UIKit - expert

● Tuist - proficient

● SDK Management - proficient

● CI/CD for mobile apps - proficient

● Technical English (written and spoken) - expert


Responsibilities:

● Update and maintain mobile SDKs ensuring compatibility with the latest mobile operating systems and devices.

● Work closely with the Lead Mobile Engineer to plan and execute development strategies.

● Collaborate with cross-functional teams to gather requirements and ensure the technical feasibility of mobile solutions.

● Implement security best practices in mobile development to protect user data and comply with financial regulations.

● Provide technical support for mobile SDKs, including troubleshooting and debugging issues


Working Practices:

● Agile development practices, with a focus on Scrum or Kanban methodologies.

○ 1:1 check-ins with the Lead Mobile Engineer and Engineering Manager

○ Cross-functional team meetings to align on goals, timelines, and

deliverables (standups)

○ Refinement

○ Planning (ceremonies)

○ Technical review sessions to discuss challenges, solutions, and best

practices in mobile development.

● Regular sprint planning, retrospectives, and stand-ups to ensure continuous

progress and improvement.

● Tooling includes:

○ Development tools: Android Studio, Xcode, and Visual Studio Code.

○ Project and task management tools: Jira .

○ Collaboration and communication tools: Slack.

○ Source control and CI/CD platforms: Git, GitHub.


Additional Information:

● Fully remote, 5 days a week

● Able to work within UK working hours for a minimum of 7+ hours/day on days worked.

● Role begins December 2024.

● Laptop provided post-verification. Will be required before work can commence.


About the opportunity (for candidate):

● Opportunity to work at the forefront of the open banking movement, impacting financial technology across the UK and Europe.

● Close collaboration with a lean and highly skilled mobile engineering team.

● Chance to take on significant responsibility in updating and enhancing critical mobile software components used by hundreds of users (b2b).

● Access to cutting-edge technology and the opportunity to innovate in the financial services space.


Contract details:

Start date: 9th December

End date: May 2025

Day rate: £360pd (likely to fall outside IR35)

Full-time

Fully remote



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