Full-Time

Senior iOS Developer

Moneybox

Moneybox

201-500 employees

Mobile fintech for savings and ISAs

No salary listed

London, UK

Hybrid

2 days per week in London office, 3 days remote.

Category
Software Engineering (1)
Required Skills
iOS/Swift
REST APIs
DevOps
Requirements
  • iOS Expertise: Significant professional experience building native iOS apps with a deep command of Swift, SwiftUI, and Swift Concurrency.
  • Framework Proficiency: Solid working knowledge of UIKit for maintaining legacy code and supporting migration to SwiftUI.
  • Persistence & Data: Strong working knowledge of CoreData. You understand how to manage complex data models and local persistence in a performance-critical environment.
  • Architectural Leadership: A proven ability to make high-impact technical decisions using SOLID principles and architecture patterns such as MVVM-C (Coordinator-based navigation), and to navigate complex systems, including Server-Driven UI and modular codebases.
  • Critical AI Integration: You use AI tools to enhance your productivity but maintain a rigorous standard for the code you ship. You have the critical sense to identify when AI solutions require manual refinement for security or logic.
  • Inclusive Engineering: Experience implementing iOS accessibility features. You understand how to build interfaces that remain functional and accessible across different text scales, motion settings, and assistive technologies.
  • Leadership Mindset: A genuine interest in the people side of engineering. You are comfortable providing feedback and are willing to take on line management responsibilities if the opportunity arises.
  • CI/CD & Delivery: A solid understanding of automated testing, CI/CD pipelines, and the mobile release lifecycle.
  • Mission-Driven: A genuine interest in financial technology and a desire to build a product that helps a million+ users reach their financial goals.
Responsibilities
  • Technical Ownership: Lead and deliver streams of work end-to-end, taking ownership from initial requirements and API design through to store release and post-release monitoring.
  • Platform Evolution: Partner with mobile leadership to shape the technical direction of the iOS platform, including architecture, tooling, and engineering standards.
  • Modern Engineering: Drive the adoption of SwiftUI and Swift Concurrency across the app, while confidently navigating and migrating legacy UIKit components.
  • Cross-Functional Collaboration: Work closely with Product Managers to define features, Backend engineers to design RESTful APIs, and UI/UX designers to bring high-fidelity interfaces to life. You will also collaborate with the Android team to ensure feature parity and shared architectural standards where appropriate.
  • Mentorship & Growth: Actively support the development of other engineers through technical guidance and code reviews. You should be open to taking on line management responsibilities as the team continues to grow.
  • High-Fidelity UI: Champion accessibility and inclusive design, ensuring our features are fully optimized for VoiceOver, Dynamic Type, and high-contrast settings.
  • AI-Augmented Development: Thoughtfully integrate AI tooling into your workflow to increase velocity. You will help the team adopt these tools responsibly, maintaining a high bar for critical review and architectural integrity.
Desired Qualifications
  • Security & Cryptography: Experience with secure coding practices, encryption, and handling sensitive financial data.
  • Modular Architecture: Experience working within multi-framework codebases to support parallel development across multiple squads.
  • Complex UI: Experience with custom native animations or high-performance UI interactions.

Moneybox offers a mobile app that helps people save and invest by pairing automatic savings features with a range of investment and retirement accounts. Users link their bank cards and can have rounding-up of purchases feed into savings, then allocate funds into Cash ISAs, Lifetime ISAs, and Stocks and Shares ISAs, plus investment accounts and pension services. The app also charges subscription fees and management fees on its investment products, providing a simple, mobile-first way to grow wealth over time. What sets Moneybox apart is its focus on beginners and everyday users: a straightforward interface, automatic micro-savings, and an integrated suite of savings, investment, and pension options within one platform. The company aims to make saving and investing accessible to a broad audience—especially millennials and Gen Z—so they can build long-term wealth with minimal friction.

Company Size

201-500

Company Stage

Late Stage VC

Total Funding

$208.2M

Headquarters

London, United Kingdom

Founded

2015

Simplify Jobs

Simplify's Take

What believers are saying

  • Achieved profitability in 2023 with 168% revenue growth.
  • Secured £70M funding in 2025, boosting valuation to £550M.
  • Appointed Melissa Birge in April 2025 for IPO preparation.

What critics are saying

  • Plum's 5.10% Cash ISA drives outflows from Moneybox's 4.65% rate.
  • Fidelity's 0.35% ISAs poach £2B AUA from Moneybox customers.
  • FCA fines Nutmeg £1.5M, scrutinizing Moneybox fees next.

What makes Moneybox unique

  • Moneybox targets millennials with micro-investing via mobile app.
  • Offers Cash ISAs, Lifetime ISAs, and pension services seamlessly.
  • Generates revenue through subscription and 0.45% management fees.

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Benefits

Health Insurance

Pension

Hybrid Work Options

Annual Learning Budget

Flexible Work Hours

Private Medical Insurance

Gym Membership

Paid Holidays

Paid Vacation

Family Planning Benefits

Fertility Treatment Support

Stock Options

401(k) Retirement Plan

Company Pension Scheme

Health Cash Plan

Cycle to work scheme

Home Office Stipend

Phone/Internet Stipend

Wellness Program

Mental Health Support

Conference Attendance Budget

Professional Development Budget

Educational Allowance

Adoption Assistance

Parental Leave

Unpaid Leave

Relocation Assistance

Employee Discounts

Meal Benefits

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

0%
City A.M.
May 12th, 2025
Moneybox: Savings and investment platform gears up for possible IPO

Savings and investment platform Moneybox is gearing up for a potential initial public offering (IPO) as it bolsters its boardroom with a new hire.

FF News
May 12th, 2025
Moneybox Appoints Melissa Birge As Independent Non-Executive Director To Support Next Phase Of Growth

Moneybox, the award-winning wealth management platform, is pleased to announce the appointment of Melissa Birge as an Independent Non-Executive Director to its Board. Melissa joined in April 2025 and will also chair a newly established Board Audit Committee, strengthening the company’s financial oversight and risk management as it matures and scales.Melissa brings a wealth of experience from executive and non-executive roles across high-growth, consumer-facing, and digital-first businesses. She currently serves as an Independent Non-Executive Director and Audit Committee Chair at WorldRemit, and has held a range of senior executive roles including at KAYAK, where as CFO she led the company through its IPO and subsequent $2.1bn acquisition by The Priceline Group.She joins the Board alongside fellow Non-Executive Directors Alokik Advani, Jeremy Marsden, and Ben Marrel, and will work closely with Moneybox Co-founder and Board Chair Ben Stanway. Her appointment reflects Moneybox’s commitment to building a high-performing Board to guide the company through its next phase of growth.Melissa Birge commented: “I always look for a great team first, and the team at Moneybox is top notch. Throughout my career, I’ve worked with consumer brands—mostly internet-based—and I was drawn to Moneybox because it has a strong brand, a product customers genuinely love, and a clear focus on sustainable growth. I’m excited to support the team as they continue to build and scale.”Melissa joins Moneybox at a pivotal moment in its growth journey

Startupper.gr
May 8th, 2025
Piraeus Bank invests $25M in Moneybox

Piraeus Bank has made a strategic investment in the UK wealth-tech company Moneybox through Apis Growth Fund III Ltd (Mars), investing $25 million. This makes Mars the second-largest investor in Moneybox after Fidelity, securing a 3.4% stake. Moneybox, valued at £550 million, saw a 1,399% revenue increase over three years and became profitable in 2023. The platform manages over £12 billion in assets and serves 1.7 million customers.

FinTech Futures
Oct 25th, 2024
Moneybox's valuation climbs to £550m with new £70m investment

UK-based saving and investment platform Moneybox has secured around £70 million in new funding, boosting its valuation to £550 million.

FinTech Global
Oct 23rd, 2024
Moneybox raises £70m in new investment, valuation hits £550m

Moneybox, the award-winning UK saving and investing platform, announced today that it has welcomed new investors Apis Global Growth Fund III and Amundi, enhancing its robust investor base.