Software Engineer

Capital on Tap; Polska; Remote; PLN 180,000 - 240,000; Full time

Job summary

Capital on Tap is seeking software engineers to build best-in-class credit card and payment products for small businesses. You will work across cross-functional teams from concept through production, monitoring and continuous improvement, shaping solutions end to end.

The role emphasizes ownership, problem solving, and a proactive, collaborative attitude. You will contribute to a scalable tech stack and partner closely with Product Managers and QA Engineers in a remote, contract setting.

Qualifications

• Experience building full-stack solutions with .NET technologies.
• Knowledge of SDLC from design to production delivery.
• Ability to write robust unit and integration tests.

Responsibilities

• Build robust and scalable full-stack solutions using .NET technologies.
• Own from first line of code to production, monitoring and continuous improvement.
• Collaborate with Product Managers, QA Engineers, and fellow Software Engineers.
• Create and maintain unit and integration tests to ensure quality.
• Troubleshoot issues and optimize performance as needed.
• Bridge tech talks and business goals to keep everyone aligned.

Skills

.NET

SDLC ownership

Unit testing

Integration testing

SQL Server

MongoDB

Team collaboration

Problem solving

Tools

CI/CD

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, £20bn 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!

remote B2B contract role.

This is a multiple-headcount role, so please don’t be put off if you’ve seen it advertised for a while.

The Role

We’re looking for Software Engineers to help us build the products that small businesses across the UK and US rely on every day. You’ll work across cross-functional teams alongside Product Managers, QA Engineers, and fellow Software Engineers, owning problems end to end, from the first line of code through to production, monitoring, and continuous improvement.

This isn’t a role for someone who wants to be handed a ticket and told what to build. We’re looking for engineers who understand the problem, challenge the approach when it needs it, and take pride in the quality of what they ship. We only build what the customer wants.

What You’ll Be Doing

We’re looking for Full stack 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
• 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.