Senior Software Engineer New London

{ “@context”: “http://schema.org”, “@type”: “JobPosting”, “title”: “Senior Software Engineer New London”, “description”: “

We’re Capital on Tap. Capital on Tap started because small businesses were underserved. Big banks were slow, their products weren’t fit for purpose, and small business owners often couldn’t access what they needed. We set out to fix that.

Today we’re 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.

1,000+ employees, £20 bn in annual card spend, 200,000+ customers, 17,000+ Trustpilot reviews averaging 4.7 stars, and we’re profitable. We’ve done a pretty good job so far, but we’re just getting started!

This is a hybrid role; our engineering teams work from our London (Moorgate) office two days per week.

What You’ll Be Doing

  • 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, and fellow Software Engineers.
  • You’ll build bullet‑proof 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.
  • Good testing practices, in both Unit and Integration testing.
  • Good understanding of database technologies.
  • A passion for learning new skills and technologies.
  • A proactive, supportive, and collaborative team player.
  • Databases: SQL Server, MongoDB.
  • First stage: 30‑minute intro, CV review, and values with a Talent Partner.
  • Second stage: 45‑minute “Tech Chat” with a Team Manager.
  • Final stage: 90‑minute Code Pairing + 30‑minute Values Interview.

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.

Benefits

  • Private Healthcare including dental and optician services through Vitality.
  • Worldwide travel insurance through Vitality.
  • Anniversary Rewards (£250, £500, £750, four‑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.
  • Six free therapy sessions per year.
  • Dog Friendly Offices.
  • Free drinks and snacks in our offices.

#J-18808-Ljbffr”, “datePosted”: “2026-05-21”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Capital On Tap”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__438880208__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=27208” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “St James” } } }
Company: Capital On Tap
Apply for the Senior Software Engineer New London
Location: St James
Job Description:

We’re Capital on Tap. Capital on Tap started because small businesses were underserved. Big banks were slow, their products weren’t fit for purpose, and small business owners often couldn’t access what they needed. We set out to fix that.

Today we’re 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.

1,000+ employees, £20 bn in annual card spend, 200,000+ customers, 17,000+ Trustpilot reviews averaging 4.7 stars, and we’re profitable. We’ve done a pretty good job so far, but we’re just getting started!

This is a hybrid role; our engineering teams work from our London (Moorgate) office two days per week.

What You’ll Be Doing

  • 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, and fellow Software Engineers.
  • You’ll build bullet‑proof 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.
  • Good testing practices, in both Unit and Integration testing.
  • Good understanding of database technologies.
  • A passion for learning new skills and technologies.
  • A proactive, supportive, and collaborative team player.
  • Databases: SQL Server, MongoDB.
  • First stage: 30‑minute intro, CV review, and values with a Talent Partner.
  • Second stage: 45‑minute “Tech Chat” with a Team Manager.
  • Final stage: 90‑minute Code Pairing + 30‑minute Values Interview.

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.

Benefits

  • Private Healthcare including dental and optician services through Vitality.
  • Worldwide travel insurance through Vitality.
  • Anniversary Rewards (£250, £500, £750, four‑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.
  • Six free therapy sessions per year.
  • Dog Friendly Offices.
  • Free drinks and snacks in our offices.

#J-18808-Ljbffr…

Posted: May 21st, 2026