Staff Engineer - Treasury Management

Pleo; Madrid; Hybrid; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Pleo card

Catered meals

Private healthcare

25 days of holiday

Mental health support

Paid parental leave

Job summary

A progressive tech company in Madrid is seeking a Staff Backend Engineer for the Treasury Management team. The position involves designing and maintaining scalable backend systems primarily using Kotlin. You will have ownership of service architectures in a financial context and collaborate with cross-functional teams. The ideal candidate will possess experience in backend system design, distributed systems, and a commitment to high quality and correctness. Enjoy a range of benefits including hybrid working options and comprehensive healthcare.

Qualifications

• Experience in designing and maintaining backend systems with strong correctness requirements.
• Ability to own systems in production, including observability and incident response.
• Understanding of distributed systems and managing async workflows.

Responsibilities

• Design, build, and maintain scalable backend services primarily in Kotlin.
• Own and evolve service architecture and APIs in a financial domain.
• Collaborate across teams for end-to-end solutions.

Skills

Backend system design

Kotlin

API design

Distributed systems

Observability practices

Data modeling

Communication

Job description

Messy spend management is tricky business. And tedious processes are a lose-lose situation for all involved, not just finance. At Pleo, we're changing that. We build spend solutions that make managing money seamless, empowering, and surprisingly effective for finance teams and employees alike—with a vision to help all businesses ‘go beyond’.

The word ‘Pleo’ actually means ‘more than you’d expect’, and living by that mantra has been the secret to our success over the last 10 years.

Now, we’re at a pivotal moment in our journey; every move we make has a direct impact on our 40,000+ customers, our business, and our collective success. We need people who take pride in uncovering customer needs, who turn complex problems into simple solutions, challenge the way things are done (respectfully), and always aim high. With great ambitions driving us forward, we can’t say we’ve got this whole thing figured out. And frankly, that’s half the fun! What we can say is that we’re a driven, progressive, and, importantly, a kind bunch of 850+ people from over 100 nationalities, all committed to delivering the future of business spending, together.

At Pleo, we’re on a mission to make spend management surprisingly effective and empowering.

We’re hiring a Staff Backend Engineer to join the Treasury Management team. You will help set technical direction and deliver resilient backend systems that help customers optimise liquidity, forecast cash flow, and automate treasury processes.

What Treasury Management Does

Treasury Management helps companies optimise and automate how they manage cash.

• Liquidity management: get visibility and control over cash using real-time balance and cash flow data
• Forecasting: help finance teams understand what their future cash position could look like (spend projections and cash flow forecasting)
• Automation: reduce manual finance work through transfer rules (automation and scheduling) and alerts
• Treasury capabilities: deposits and parts of multi-currency money management
• Integrations & dependencies: integrate with external providers and work closely with other Pleo teams to deliver end-to-end treasury capabilities, with correctness and reliability

What You’ll Be Doing

• Drive initiatives to design, build, and maintain scalable backend services (we primarily use Kotlin)
• Own and evolve service architecture, APIs, and data models in a financial domain with a high bar for correctness
• Build and maintain integrations with external providers that enable treasury capabilities (for example, deposits), and continuously improve reliability and how we run systems in production
• Collaborate across teams to deliver end-to-end outcomes, and lead the technical part of cross-team initiatives
• Set technical direction for key parts of the Treasury backend
• Analyse system performance and implement improvements to ensure high reliability and scalability
• Raise our engineering bar for correctness through strong engineering practices:
• Code reviews, incident follow-ups and post-mortems, and thoughtful ownership
• Safe change management (backwards compatibility, feature flags, migrations, rollout plans)
• Resilient workflows (idempotency, reconciliation, safe retries)
• Proactively identify and reduce technical debt and help guide the team through technical challenges and migrations
• Support other engineers through pairing, reviews, and technical guidance
• Contribute hands‑on in code. You should expect to be coding a meaningful part of the time

You’ll Bring Solid Experience With

• Designing and maintaining backend systems, ideally in domains with strong requirements for correctness and reliability
• Observability and owning systems in production (monitoring, alerting, incident response, post-mortems)
• Distributed systems fundamentals (async workflows, consistency, idempotency, and designing for things going wrong in production)
• API design, clear service boundaries, and integrating with external systems in a maintainable way
• Data modelling and evolving schemas safely over time
• Strong testing practices and a high quality mindset
• Clear communication and pragmatic decision‑making across teams and stakeholders

Your colleagues would say you

• Lead by example and raise the bar with pragmatism and care
• Communicate clearly, listen well, and bring people along in decisions
• Enjoy breaking down complex problems, gathering input, and driving to a solution
• Coach and mentor others and create space for people to grow
• Prefer progress over perfection, while still caring deeply about quality

Show me the benefits!

• Your own Pleo card (no more out‑of‑pocket spending!)
• Lunch is on us for your work days – enjoy catered meals or receive a lunch allowance based on your local office 🍜
• Comprehensive private healthcare – depending on your location, coverage options include Vitality, Alan or Médis
• We offer 25 days of holiday + your public holidays
• For our Team, we offer both hybrid and fully remote working options
• Option to purchase 5 additional days of holiday through a salary sacrifice
• We use MyndUp to give our employees access to free mental health and well‑being support with great success so far ❤️🩹
• 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 👶

About Your Application

• Please submit your application in English; it’s our company language so you’ll be speaking lots of it if you join 💕
• We treat all candidates equally: If you are interested please apply through our application system – any correspondence should come from there! Our lovely support team isn’t able to pass on any calls/ emails our way – and this makes sure that the candidate experience is smooth and fair to everyone 😊
• We can only achieve our goals if our team reflects the diversity of the world around us – and that starts with you, hitting apply, even if you are worried you might not tick all the boxes. We embrace and encourage people from all backgrounds to apply – regardless of race/ethnicity, colour, religion, nationality, gender, sex, sexual orientation, age, marital status, disability, neuro‑diversity, socio‑economic status, culture or beliefs
• When you submit an application we process your personal data as a data processor. Find out more about how your data is used in the FAQs section at the bottom of our jobs page