Perk

SaaS

SeniorSoftwareEngineer-CardsExperienceEU

€55–85k ~AI est. Barcelona, Spain FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Software Engineer - Cards Experience EU at Perk. Skills: Cards experience, Spend domain, Banking integrations, Complex fund flows. Build core card spending experience. Evolve core card spending experience”

What You'll Achieve.

Deliver complex initiatives; Drive strategic projects; Deliver with quality; Deliver with pace; Achieve long-term sustainability; Achieve long-term maintainability; See technical decisions move needle; Solve problems without friction; Build reliable systems; Build simple systems; Invest energy where counts

Industry & Context.

SaaS
Problems you'll solve

Problem solving

Eligibility Requirements

Based within commuting distance

What They're Looking For.

Must Have

5+ years experience, Experience working in complex transactional systems, Comfortable picking up complexity fast

Nice to Have

Deep prior expertise in payments, Deep prior expertise in financial systems

What You'll Do.

Build core card spending experience

Evolve core card spending experience

Write production code

Shape technical designs

Contribute to technical direction

Navigate specialised domain

Balance delivery needs

Balance platform sustainability

Balance platform maintainability

Take responsibility for lifecycle

Understand customer pains

Solve complex problems

Build reliable systems

Focus on problem itself

Contribute to squad goals

Contribute to long-term vision

Write design documents

Manage technical debt

Communicate complex ideas

Identify who needs involved

Drive alignment across organisation

Coordinate cross-squad initiative

Contribute to engineering guilds

Define engineering excellence

Uphold engineering excellence

Define testing strategies

Define coding standards

Establish frontend architecture

Manage performance budgets

Engineer backend solutions

Plan complex data migration

Manage incident responses

Conduct blameless post-mortems

Oversee operational security

Manage dependency risk

Level up engineering organization

Influence product roadmap

Coordinate multi-team deliverables

Resolve technical blockers

Leverage agentic workflows

Develop custom agentic skills

Utilize AI-powered code reviews

How You'll Work.

Team & Collaboration

Cross-functional partners; Cross-functional squad; Multiple European hubs; Engineering guilds

Communication Scope

Communicate complex ideas

Process & Methodology

Roadmap planning

Full Job Description

About Us Perk (formerly TravelPerk) is the intelligent platform for travel and spend management. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation, we’re on a mission to power real work, with real impact. We’re trusted by more than 10,000 companies worldwide, including Wise, On Running, Breitling, and Fabletics, and we’re tackling the 7 hours of lost productivity per employee each week, a $1.7 trillion problem http://www.perk.com/shadow-work-report. Founded in 2015, Perk has grown into a global company of more than 1,800 people across 12 offices globally, with headquarters in London and Boston. We combine innovation, control, and simplicity to transform how businesses work and how people feel at work. At Perk, we’re driven by our values, like being an owner, delivering a 7-star experience, and working as one team. We value curiosity, purpose, and mindset, not just knowledge, to unlock the power in your potential. Our talent team brings together leading minds from the travel and SaaS industries, representing over 70 countries. If you’re excited about having a real impact and shaping how millions of people experience work, we’d love you on the team. Visit www.perk.com http://www.perk.com to learn more. As a Senior Software Engineer on the Cards Experience EU team, you'll be a key technical contributor in building and evolving the core card spending experience within the Spend domain. You'll work alongside a team of experienced engineers across multiple European hubs, collaborating closely with staff engineers and cross-functional partners to deliver complex, high-impact initiatives in a fast-moving environment. The team is currently focused on several urgent strategic projects, and you'll play a hands-on role in driving them forward — writing production code,

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