Senior Backend Engineer | Spend Management

  • Category: IT Engineer & Developer Jobs
  • Location: London, England
  • Job Type: Full Time / Part Time
  • Salary: Estimated: $ 18K to 31K
  • Published on: 2025/09/21

Engineers are the backbone of all we do at Pleo. Without these wildly brilliant people, we don’t have a thing. We are looking for an experienced Senior Backend Engineer to join one of our cross-functional product teams.

As a Senior we trust you to be an expert in server-side languages. Kotlin is +0%+ of our micro-services, so proficiency here is hugely beneficial. Beyond writing excellent, well-tested, maintainable code, you also practice the other aspects of being a strong technical leader. You give insightful PR reviews, are a trusted technical partner to teammates, know when/how to prioritise tech debt, proactively jump into P1/P2 incidents, lead post-mortems and can generally upskill and unblock the team around you.

But it’s not just about being a master of your craft; it’s about ownership and taking the lead on large projects. These could be new product launches, managing tricky migrations, and designing and building new microservices or components.

As a scale-up, we sometimes need to shift focus. When that happens, your role is to be a steady hand to help the team navigate ambiguity and manage technical change.

Mostly, we’re looking for someone others can look up to and learn from. You’ll set the standard for the team, not just with your code but in how you work and the culture you promote. At Pleo, our people and our culture are very important to us, and we value trust and transparency like you wouldn’t believe.

And finally, we want to enjoy what we do and who we are working with because duh.

You know your way around
• Server-side languages (we mostly use Kotlin, with few services in TypeScript)
• Cloud environments/ distributed systems/ microservices (AWS, Google Cloud, Kubernetes)
• Relational databases (e.g. PostgreSQL)
• Testing frameworks (Cypress, JUnit, Testcontainers)
• Observability and monitoring (Datadog)
• DevOps culture and tools (GitHub Actions, Gradle, Terraform)

Your colleagues would say you
• Work in English with ease (it's our company language)
• Never stop being curious and love learning about new languages/ frameworks/ working styles
• Have experience solving complex technical challenges at scale
• Ensure a high bar for quality and reliability within your team
• Coach others to help them develop as engineers
• Advocate for a more thorough code review process than a quick scroll to the bottom of the page and a “LGTM!”
• You don’t just write code; you help to design the overall solution
• Are sought after within your team for help in solving challenging problems
• You’re a force multiplier within your team - your work enables other engineers to do be even better
• Able to raise and describe technical debt faced by your team. And then able to propose a solution or path forward

Show me the benefits!
• Your own Pleo card (no more out-of-pocket spending!)
• Flexible working remote options
• Lunch catered in our London, Copenhagen and Lisbon offices
• 25 days of holiday per year + your local public holidays
• Paid parental leave - we want to make sure that we're supportive of families and help you feel that you don't have to compromise your family due to work


Company Name: Pleo

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