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Full Stack Software Engineer

This job is no longer open

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.

Why Join Us?


We empower you to be innovative and solve complex problems. Take ownership, make an impact, and thrive in our scaling and agile environment.This is a B2B Contract 📃 position, working remotely 🏡 from Poland 

Engineering - ACDC 🤘


The Acquisition, Credit, Decisioning, and Compliance team (ACDC) looks after the software systems used throughout the application and onboarding process for new customers and performs ongoing monitoring to ensure that customers' accounts are safe and secure. The team's primary responsibilities include:

  • Building sites and APIs to ensure that new customers have a smooth application and onboarding experience
  • Integrating with new credit data sources used for credit decisions and underwriting, and building and maintaining decisioning systems used for automated assessments of customers
  • Performing upfront and ongoing fraud and compliance monitoring to ensure both regulatory adherence and a secure customer experience

What You’ll Be Doing


We’re looking for Backend Software Engineers to help us build the best credit card and payment products for small businesses. If you’re looking for an environment where you’re given the freedom to make empowered decisions, research new technologies, and learn/share knowledge with your peers. Then keep on reading!
  • You’ll build robust and scalable solutions using .Net technology
  • From the first line of code to production, monitoring, and continuous improvement - you’ll own the SDLC
  • Teamwork makes the dream work - you’ll partner with Product Managers, QA’s, and fellow Software Engineers
  • You’ll build bulletproof unit and integration tests to keep our software sharp and our users happy
  • Bugs happen. When they do, you’ll be ready to troubleshoot and tweak as needed
  • You’ll bridge the gap between tech speak and business goals, ensuring everyone’s on the same page and moving forward together

Our Tech Stack


  • Backend: C#, .Net, .Net Core
  • Frontend: React, JavaScript
  • Mobile: Flutter, Dart
  • Databases: SQL Server, MongoDB
  • Cloud: Azure & GCP

We’re Looking For


  • 3+ years hands-on experience in C#, .Net Core, SQL Server
  • Good testing practices, in both Unit and Integration testing
  • Good understanding of database technologies
  • Experience in using Agile development practices
  • A passion for learning new skills and technologies
  • A proactive, supportive, and collaborative team player

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.

Interview Process 🤝


  • First stage: 30-minute intro, CV review, and values with Talent Partner
  • Second stage: 45-minute “Tech Chat” with Team Manager
  • Final stage: 90-minute Code Pairing + 30-minute Values Interview

Other Info


👍Check out our ‘Top Tips’ for interviewing.✔️Keep updated on new job opportunities by following us on Linkedin.📧Email careers@capitalontap.com if you have any questions.

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.)

This job is no longer open

Life at Capital on Tap

Recently featured in the Sunday Times TechTrack 100 (number 48!), we are one of the fastest growing companies in the UK. To date, we've provided over £500M in funding to 40,000 SMEs across the UK. We invest continuously in our team and infrastructure to continuously move faster in an environment that has high energy and collaboration. Far from a beige cube-farm, our corporate headquarters in Notting Hill provides a dynamic, relaxed and fun culture. Come join the team and help us grow! WHY WE'RE DOING THIS Founded in 2012, Capital on Tap is on a mission to help small businesses thrive. We believe small business owners are the foundation for growth in our economy, and yet today's banking system has left them behind. We have partnered with over 40,000 businesses across the UK deploying funding facilities of over £500 million to customers. We believe we still have a long way to go to make business funding truly available to everyone small business.
Thrive Here & What We Value1. Private Healthcare through Vitality, Worldwide Travel Insurance through Vitality, Dental Cover through Vitality2. Anniversary Rewards (£250, £500, £750, 4-week fully paid sabbatical)3. Salary Sacrifice Pension Scheme with up to 7% match4. Dog Friendly Offices5. Free drinks and snacks in our offices6. Cycle to Work Scheme7. Enhanced Parental Leave8. Season Ticket Loan9. Private Healthcare, Worldwide Travel Insurance, Dental Cover through Vitality10. 28 days holiday (plus bank holidays)11. Free therapy sessions per year
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