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Mobile Software Engineer

Job in London, Greater London, W1B, England, UK
Listing for: Capital On Tap
Part Time position
Listed on 2026-02-15
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Mobile Software Engineer New

Overview

We’re Capital on Tap 👋 💳 Capital on Tap was founded with the mission to help small business owners and make their lives easier. Today, we provide an all-in-one business credit card & spend management platform that helps business owners save time and money. Capital on Tap proudly serves over 200,000 businesses across the world and our goal is to help 1 million small businesses by 2030.

📍
London | 🏢
Hybrid (2 days per week in office)

Customer Experience (CX) Engineer

Customer Experience (CX) 🚀 The Customer Experience (CX) Team is the face of Capital on Tap’s product offering. We’re a fun and enthusiastic team focused on building elegant and accessible mobile and web platforms for our customers. As a CX Engineer, you’ll get to work across a diverse tech stack from the UI, all the way down to the service and data layer.

What

You’ll Be Doing
  • Build robust and scalable mobile solutions using predominantly Flutter technologies.
  • Own the full SDLC from the first line of code to production and monitoring.
  • Identify bottlenecks and utilize technologies like AI to create efficiency gains.
  • Partner closely with Product Managers, QAs, and fellow Software Engineers.
  • Build bulletproof unit and integration tests to ensure a high-quality user experience.
  • Bridge the gap between tech speak and business goals to ensure alignment.
  • Just Pilot: We never settle for “good enough”. We pilot new ideas fast, ask questions to figure it out, and scale quickly.
  • Why Not Today? Fast is as slow as we go - speed and simplicity gives us a competitive advantage.
  • Be a Buddy: We tap in from day one to help the team, we do the right thing even if it’s hard.
  • Owners and Dates: We don’t chase people. If you own a task and agree to a date, the expectation is that it gets done.
  • Feedback: We want our employees to flourish, so we regularly provide direct and constructive feedback.
  • 3+ years hands-on experience in Flutter and Dart mobile development.
  • Experience building and deploying applications for both Android and iOS.
  • Native mobile development experience in either Kotlin or Swift (ideally both).
  • Strong testing practices, including both Unit and Integration testing.
  • Proven experience working within Agile development environments.
  • A proactive, supportive, and collaborative team player mindset.

Even if you don’t have all of the necessary skills, we still encourage you to apply.

Stage 1

Stage 1: 30-minute intro, CV review, and values with Talent Partner.

Stage 2

Stage 2: 45-minute “Tech Chat” with Team Manager.

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 (£250, £500, £750, 4-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 .

Excited to work here? Apply!

If you’d 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.)

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