Monzo is looking for a Staff Software Engineer to join our Quality & Product Integrity collective. We are on a mission to make money work for everyone, and this role is pivotal in ensuring our platform scales without compromising on quality. You will focus on solving deep technical quality problems at a systemic level, building tools and guardrails that empower our ~450 engineers to deliver with confidence.
What You'll Do
- Be hands on and technical with code, using software engineering and system building skills to solve deep technical challenges.
- Drive behavioural changes and accountability across Monzo using data, influencing technical and non-technical stakeholders.
- Set both technical and strategic direction in an area that cuts across backend systems, data pipelines, mobile clients, CI/CD, release processes, and analytics.
- Build a deep understanding of the platform and work to strengthen the reliability surface between teams by building tools, patterns, and guardrails.
- Promote and maintain a culture where every engineer feels confident in Monzo’s quality and product integrity.
- Understand several work-streams across the group to provide technical advice and challenge to other engineers.
- Lead architectural discussions for the most complex systems to arrive at robust and optimal solutions.
- Champion high standards by celebrating success and providing constructive feedback.
- Foster a culture of quality within the collective, proactively championing measures to test work.
- Pro-actively mentor, sponsor and up-level engineers.
What We're Looking For
- Strong software engineering foundations, with significant experience designing, building, testing, and operating robust backend services using strongly-typed languages.
- Proven expertise in testing and quality at scale, including E2E testing, reliability practices, and signal-driven quality approaches.
- Experience designing or evolving platform tooling or shared systems used by many teams.
- The ability to influence technical direction without formal authority, using data, clarity of thinking, and strong communication.
- Comfort working across ambiguity and evolving problem spaces, balancing pragmatism with long-term impact.
- A track record of improving developer experience and delivery outcomes through better systems, tooling, or practices.
Team & Environment
You'll be part of the Technology - Engineering department within the Quality & Product Integrity collective. Monzo has around 450 engineers out of roughly 5,000 people in total.
Benefits & Compensation
- Base salary: £115,000 - £150,000 + equity via stock options.
- Learning budget of £1,000 a year for books, training courses and conferences.
- Flexible working hours.
- Relocation assistance to the UK.
- Visa sponsorship.
Work Mode
This is a hybrid role. You can be based in our offices in Cardiff or London, or work remotely from anywhere in the UK.
We’re an equal opportunity employer. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity or disability status.
