Mobile and Backend Software Engineer Banking

Were Capital on Tap
Capital on Tap started because small businesses were underserved. Big banks were slow their products werent fit for purpose and small business owners often couldnt access what they needed. We set out to fix that.

Today were a financial platform - not just a credit card company. We offer a best-in-class business credit card SME-focused spend management platform a savings product that hit 1 billion in funds within its first year and a growing suite of tools and financial products that make running a small business easier.

1000 employees 20bn in annual card spend 200000 customers 17000 Trustpilot reviews averaging 4.7 stars and were profitable. Weve done a pretty good job so far but were just getting started!

This is a Hybrid role the team work from our London Offices 2 days per week.

The Team

The Banking and Repayments teams sit at the heart of Capital on Taps product owning the core account experience for thousands of small business customers. Banking manages account operations transaction lifecycles balance management ClearBank integration and savings. Repayments owns the repayment rails including the most recent open banking repayments.

We value engineers who take genuine ownership work autonomously and bring depth across the stack. This is a high-priority hire with real impact from day one.

What Youll Be Doing

As a Senior mobile and backend Software Engineer youll own the back-end systems that power our Banking and Repayments platform while also contributing to mobile - helping transition mobile and front-end ownership from our Customer Experience team into Banking.

• Design and build robust scalable back-end services in C#/.NET
• Own the full SDLC - from feature inception through to production monitoring and continuous improvement
• Contribute to mobile development across iOS and Android using Flutter Kotlin and/or Swift
• Collaborate with Product Design and QA from early feature shaping through to delivery
• Write thorough unit and integration tests and uphold high engineering standards
• Identify bottlenecks and drive improvements across the team
• Work cross-functionally bridging technical decisions with business goals

What Were Looking For

• Mobile development experience in Flutter/Dart Kotlin or Swift - this is a firm requirement

• Strong back-end engineering experience ideally in C#/.NET
• Solid testing practice across unit and integration testing
• Experience with CI/CD platforms such as CodeMagic or similar
• Comfortable working in Agile environments
• Autonomous and collaborative - you take ownership and see things through

Our Tech Stack

• Backend: C# . Core
• Mobile: Flutter Dart Riverpod GoRouter Kotlin Swift
• Databases: SQL Server MongoDB Firestore
• Cloud: GCP (Firebase) and Azure
• CI/CD: CodeMagic

Diversity & Inclusion
We welcome consider and encourage applications from anyone who shares our commitment to inclusivity. Join us in creating a space where authenticity thrives and everyone can do their best work.

Great Work Deserves Great Perks
We try not to take ourselves too seriously (all the time) so we make sure our office is decked out with a pool table arcade machine beer tap and a couple of office dogs thrown in for good measure. Check out our benefits:
Private Healthcare including dental and opticians services through Vitality
Worldwide travel insurance through Vitality
Anniversary Rewards (-week fully paid sabbatical)
Salary Sacrifice Pension Scheme up to 7% match
Octopus EV Salary Sacrifice Scheme
28 days holiday (plus bank holidays)
Annual Learning and Wellbeing Budget
Enhanced Parental Leave
Cycle to Work Scheme
Season Ticket Loan
6 free therapy sessions per year
Dog Friendly Offices
Free drinks and snacks in our offices

Check out more of our benefits values and mission here.

Other Info
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Excited to work here Apply!
If youd like to progress your career within our fast growing profitable fintech then click apply and we will aim to get back to you within 3 working days (during busy periods this could take up to 5 working days.)

Required Experience:

IC

Employment Type : Full Time
Experience: years
Vacancy: 1