Site Reliability Engineer
Confirmed on the employer's own hiring board on Oct 1, 2026. First seen by Alion on Jun 23, 2026. Capital on Tap scores A on the Alion truth index.
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!
London, Old Street | 2 Days in Office
SRE at Capital On Tap
At Capital On Tap, we run a hybrid embedded SRE model. We aim to work closely with the teams within Capital On Tap to provide them the best support. Our main objective currently is to gain as much visibility into our platform's health while offering scalable solutions.
What You’ll be doing:
As a Site Reliability Engineer (SRE) you will help ensure our platforms are fast, reliable, and scalable. You’ll design, build, and monitor systems, prevent issues before they happen. Using SLAs, SLIs, and SLOs, you’ll guide feature launches while maintaining services that everyone can depend on.
- Manage and automate Azure, Datadog, NGINX & Cloudflare
- Develop and monitor Kubernetes and Serverless resources
- Maintain infrastructure code with Terraform & CRDs / Crossplane
- Improve systems, processes, and technologies; consult stakeholders to enhance platform performance
- Getting involved in new application architecture & design processes
- Design solutions to reduce toil, automate repetitive tasks and streamline workflows to reduce manual work and boost team productivity.
- Create SLIs and SLOs; increase application visibility
- Align with the Product team on SLAs and core service objectives
- Collaborate with Platform Engineers for automated solutions and pipelines
- Enhance user experience with infrastructure and pipeline optimisation
- Support CI/CD tools such as Azure Devops, Octopus Deploy and Flux to streamline software delivery
- Lead incident troubleshooting to safeguard customer experience
Our Values & Culture
- 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.
We’re Looking For
Required skills:
- Experience in managing a public cloud (Azure advantageous)
- Experience in Azure DevOps, Octopus, Flux or other CI/CD tools
- Experience with Linux and Microsoft Systems
- Excellent communication skills and ability to collaborate with multiple teams in an agile environment
- Proficient in contributing to IaC technologies involving expertise in writing, managing, and optimising infrastructure with tools such as Terraform and Pulumi
- Experience working with a cloud monitoring solution (advantageous to have DataDog)
- Experience with Kubernetes and Docker
- Experience in at least one scripting language (Python, PowerShell, Go)
Interview Process
- First stage: 30-minute intro, CV review, and values with Talent Partner
- Second stage: 75 minute Technical Task
- Final stage: 30 minute Interview with EM + 30 minute Interview with Head of Platform Engineering
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
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 missionhere.
Other Info
Check out our ‘Top Tips’ for interviewing.
Keep updated on new job opportunities by following us on Linkedin.
Email [email protected] 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.)