Flexible hours

Various work from home options

Dog friendly

Employment type
Full time

At TrueLayer, we want the financial system to work for everyone โ€” so we've made it our mission to open up access and put fintech at people's fingertips.

The Core Banking group operates TrueLayerโ€™s payment ledgers and it is in charge of connectivity to payment rails (Faster Payments in the UK, SEPA in Europe).

It offers these capabilities as an internal platform to the rest of the organization, enabling upstream teams to build exciting new products tackling use cases that require banking capabilities.

Our current focus is on expansion and quality:

  • We want to plug into more payment rails, adding support for new currencies and covering more geographies;
  • We need to support existing and new customers, honouring our 99.9% availability SLA in the face of rapidly increasing volumes.

It is an exciting and challenging journey - we are looking to hire you, a Principal Engineer, to help us along the way.

Our challenges:

  • We want to continuously iterate and improve our offering without compromising the stability or long-term maintainability of our systems.
  • We serve millions of API requests with a 99.9% availability SLA. Our platform must remain a reliable foundation that our customers can build upon as we expand (new products, new geographies, more volume).
  • We want TrueLayer to be an exceptional place to work. We want our processes and interactions to stay honest, genuine and human as the company grows.
  • We want our engineers to grow with us. To have the opportunity, the guidance and the support to develop their technical and core skills to the fullest within the organisation.
  • We want to reduce the coupling between our product teams, enabling fast iteration cycles.

What we expect from you as a Principal Engineer

  • Foster a collaborative environment between engineering teams, in order to maximise cross-functional project outcomes
  • Understand the business needs to anticipate technical challenges and assess the long-term impact of today's technical decisions
  • Maintain a bird-eye view of what is happening across the Engineering organisation, share it with the engineering teams helping them to situate their efforts within the bigger picture
  • Embody and promote our Engineering Principles and best practices to ensure excellent quality products and services
  • Partner with Engineering Managers, Engineering Leads and other Principal Engineers to lead the technical side of complex cross-team projects
  • Stay current with current trends to assist teams in experimenting/adopting new technology where appropriate
  • Build consensus and excitement around a long-term vision for our platform, based on our business ambitions and our current key challenges
  • Nurture and support our engineers, via mentorship and sponsorship

What you can expect from us

  • Competitive salary and meaningful equity in the company ๐Ÿ’ฐ
  • Flexible hours and hybrid working โ€” work from home๐Ÿก and our incredible offices in London ๐Ÿ‡ฌ๐Ÿ‡ง Milan ๐Ÿ‡ฎ๐Ÿ‡น Sydney ๐Ÿ‡ฆ๐Ÿ‡บ and Dublin ๐Ÿ‡ฎ๐Ÿ‡ช
  • A remote-working budget to help set up your home office ๐Ÿ’บ
  • Flexible holiday policy, with 24 days as standard โœˆ๏ธ
  • Generous parental leave, above and beyond statutory requirements and with no minimum tenure ๐Ÿ‘ฉโ€๐Ÿ‘ฉโ€๐Ÿ‘ฆ
  • Enhanced pension contribution at 4% & 4% ๐Ÿ‘ต๐Ÿฝ ๐Ÿ‘ด๐Ÿฝ
  • Private Health Insurance from the day you start ๐Ÿง‘๐Ÿฝโ€โš•๏ธ
  • 12 fully-paid Wellbeing Days a year (on top of the holiday allowance) ๐Ÿ•Š๏ธ
  • Membership of mental wellbeing platform Spill ๐Ÿง˜๐Ÿฝโ€โ™€๏ธ
  • ยฃ1,000 to spend on learning & development each year ๐Ÿ“š
  • ยฃ500 per quarter (outside of required business travel) to visit our hub cities around the world ๐ŸŒŽ


ยฃ105,000/yr - ยฃ125,000/yr + Equity


  • Acute knowledge of the observability story and how to apply it in a Docker-ised distributed system
  • In-depth understanding of common architectural patterns and their trade-offs
  • Strong security focus, advocate of best practices and experience with platform vulnerability management
  • Ability to work in a fast evolving engineering organization and positively influence engineers and Leads
  • Experience working in a product-centric environment, with a focus on delivery and engineering excellence

Weโ€™d be particularly excited if you can demonstrate:

  • Experience working on highly available mission-critical systems (telecommunication systems, payment processing, etc.)
  • Experience working in a highly regulated sector
  • In-depth expertise working with relational/non-relational DBs at scale
  • In-depth expertise working with messaging technologies (e.g. RabbitMQ, Kafka) in an event-driven architecture
  • A holistic approach to designing and optimising socio-technical systems

Inclusion & Diversity

At TrueLayer, we embrace people that have different perspectives and personalities. We believe that by seeing the world from all sorts of angles, we can make life better for all the people who live in it. So we want you to know that the things that make you, you โ€” like your age, background and identity โ€” are things that we celebrate and support. All we ask is that you believe in what you do.

About our hiring process

Our Hiring process typically consists of four stages:

  • A call with one of our Talent Acquisition Partners
  • A take home exercise [Principal Engineer Challenge]
  • 1 hour 45 minute system design interview and technical presentation
  • 2 hour 15 minute final interview
  • Flexible hours

    Various work from home options

    Dog friendly