Principal QA Engineer @ Cloudsmith | Leadout Capital Job Board
About this role
Leadout Capital Portfolio Company Careers Discover opportunities across our portfolio companies Principal QA Engineer Cloudsmith This job is no longer accepting applications See open jobs at Cloudsmith . See open jobs similar to " Principal QA Engineer " Leadout Capital . Quality Assurance United Kingdom Posted on Jul 9, 2026 TL;DR: We're seeking a Principal Quality Engineer to elevate quality engineering across Cloudsmith - strengthening quality practices across engineering teams, shaping our testing strategy, and ensuring the platform meets the reliability standards required by critical infrastructure. About Cloudsmith Cloudsmith is building the operating system for the modern software supply chain. We run a global, fully managed, multi-tenant SaaS platform that helps organizations, from startups to the Fortune 500, secure, govern, and distribute software artifacts at scale. Worldwide, our customers use Cloudsmith as a critical infrastructure control plane for CI/CD, developer workflows, security controls, compliance, and software distribution, supporting 30+ formats and ecosystems across languages, containers, and operating systems. We recently raised our Series C to accelerate Cloudsmith 2.0: deeper artifact intelligence, stronger policy and provenance, faster package-aware delivery, and infrastructure built for engineering teams, as well as the modern AI-driven software factory. By developers, for developers: we care about craft, architecture, and enterprise scale. The Role As a Principal Quality Engineer, you’ll be the person who shapes what quality engineering looks like at Cloudsmith - embedding quality thinking into how every engineering team works, and raising the bar across the entire organization. That means improving testability at every stage of the product development lifecycle, treating testing as a continuous activity that runs alongside development, and helping engineers take genuine ownership of quality in their own work. You’ll be joining an engineering culture that moves fast and ships regularly and you’ll help us build the confidence and practices that mean we can keep doing that sustainably, at the scale and reliability our customers depend on. The leverage in this role comes from the capability you build in the teams around it. You’ll work closely with engineering leadership, principal engineers, and the squads delivering our platform - coaching, facilitating, and creating the space for teams to drive their own quality practices. The goal is an engineering organization that is permanently more capable: one where quality is an emergent property of how people and systems interact. Key Responsibilities Drive the quality engineering strategy across the platform. You’ll define Cloudsmith’s approach to quality - how we test, what we measure, and what confidence we need before we ship. That strategy needs to work for a platform operating at the scale and reliability expectations of critical infrastructure. Build quality capability in engineering teams. You’ll pair with engineers, run workshops, facilitate risk and coverage conversations, and create the conditions for teams to develop their own quality instincts. The aim is engineers who think about testability from the design/discovery stages and make confident, well-reasoned testing decisions - with decreasing reliance on you to do it for them. Define the measures that matter. You’ll design the quality metrics that tell us whether we’re improving and help us make better decisions about reliability, quality, and performance. Shape how we build and ship safely. You’ll work with engineering and platform teams on the quality implications of how we deploy - including the intersection of our feature flagging strategy, canary deployment ambitions, and the blast radius reduction we need when things go wrong. Raise the quality culture across the engineering organization. You’ll contribute through documentation, internal talks, working group facilitation, and by being the person others turn to when they’re making hard tradeoffs about coverage, risk, and testability. Required Experience, Qualities & Skills Significant hands-on experience in quality engineering roles, with a track record that includes defining and delivering testing strategy at an organizational level. We’d typically expect 8+ years in QA or quality engineering, with the last few at senior or lead level. Proven experience testing at scale on distributed cloud infrastructure - you’ve worked on platforms with high throughput, complex data flows, or large user bases, with strong working knowledge of AWS. You understand how distributed systems fail, how to design tests that surface those failure modes, and how testing strategy has to evolve to meet those demands. Deep expertise in test automation, including E2E frameworks (Playwright, Cypress, or similar), API testing, and CI/CD integrations - ideally within B2B SaaS platforms with complex backend systems or developer-facing products. You should be comfortable getting into the details of a test suite and understanding immediately what’s missing and why. Strong understanding of software delivery and deployment patterns, including how quality considerations intersect with feature flags, staged rollouts, and release management in a cloud-native environment. The ability to identify risk in a system and reason about it clearly - understanding what gaps in coverage are telling you about design and process, and using that to drive structural improvement. A genuine belief that quality is a team capability to be built. You’re energized by making engineers better at quality thinking, and you measure your own success by how confidently teams operate independently. Strong facilitation and communication skills. You’ll be working with engineers, engineering leadership, and occasionally the broader business. Written clarity and the ability to make a technical case compellingly are both important. Cultural Values We're Looking For At Cloudsmith, our values shape how we make decisions every day. Here's what we mean by that in the context of this role: Automate everything. We believe that if it can be automated, it should be. You'll apply this to your own work - releases, testing pipelines, validation - and help raise the bar for the whole team. Collective ownership. You'll take responsibility for what you build long-term, respond when things break, and treat the entire platform as something you have a stake in - not just your corner of it. Transparency. We share what's working and what isn't, openly. You'll be honest about tradeoffs, flag problems early, and communicate progress in a way that keeps stakeholders - internal and external - genuinely informed. Bias for action. We believe in pragmatism first, perfection later. You'll know when to move quickly with a good solution rather than waiting for an ideal one, and you'll build the kind of instincts that make that call reliably. Just better. We believe everything can and should be improved upon. You'll bring a continuous improvement mindset to your work - questioning defaults, proposing refinements, and raising the bar without being precious about it. Customer collaboration. We stay close to the people who use what we build. You'll treat customer feedback as a genuine input to your work, and care deeply about the experience of the engineers on the other side of your tools. Impact & Opportunity This role offers the chance to shape and evolve quality engineering standards at a company whose platform thousands of engineering teams depend on to control and secure their software supply chain. You’ll be coming in at a moment when quality is a stated engineering priority, with leadership investment and organizational will to do this properly. From startups to Fortune 500 companies, your work will directly impact how organizations control and secure their software supply chain.
What this role is, and what else it is called
Employers in the UK advertise this kind of work as QA Engineer, Quality Assurance Manager, Test Engineer and QA Tester too, so it is worth searching more than one wording. It is a lead or principal QA & Software Testing role in the UK, advertised without a stated working pattern, which is worth asking about.
About hiring at Leadoutcapital
Leadoutcapital has 7 other live technology roles on its careers page, across Software Engineering, IT Support & Service Desk and QA & Software Testing. Of those, 50% are advertised as fully remote and 13% as hybrid. Elsewhere in its adverts Leadoutcapital asks for Python, Docker, Ruby, React and Terraform. We have been observing Leadoutcapital hiring technology staff since May 2026. See all Leadoutcapital roles, salaries and stack.
How this role compares to the market
1,456 live UK roles list AWS right now, from 503 employers. The median advertised salary is £80,000; 28% are advertised as remote. Browse AWS roles.
67 live UK roles list Cypress right now, from 33 employers. 39% are advertised as remote. Browse Cypress roles.
Lead and principal roles make up 1,635 of the live UK IT market and advertise a median of £80,000.
Market figures are today's snapshot of live UK roles on employer careers pages; see hiring trends.
Technologies mentioned
Detected on Leadoutcapital's careers page. ProdReady Recruitment lists this vacancy as an aggregator and is not the employer; applications go to the employer's own site.