Senior Software Engineer with English, hibrido (Barcelona)

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. 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. Are you a Software Engineer who finds the complexity in integration engineering compelling rather than frustrating? You’ll build the reliable, fault-tolerant pipelines that enterprise customers depend on to keep their workforce data accurate and their employees unblocked from day one. You’ll own these systems end-to-end — from integration architecture through to deployment, observability and ongoing reliability — and you’ll see directly how your technical decisions affect the onboarding and day-to-day experience of customers across the globe. The Squad You’ll join our Identity Experience (Acquisition) squad who are cross-functional and where you have real ownership of Perk’s user provisioning and identity integration domain. On the engineering side, it spans the whole workflow: our Notion, Jira, GitHub and Slack are AI-connected so you get up to speed fast, and day-to-day it helps with specifying features, writing and reviewing code, and automated AI PR review on every pull request. Some examples of what it means to be a Senior at Perk You’ll write design documents for significant changes to our provisioning and sync systems, accounting for eventual consistency, third-party API instability and the wide variety of data models across HRIS vendors. You’ll be a guardian of integration reliability, proactively managing technical debt in our connector layer before it creates customer impact. de-risks ambiguous projects through spikes and prototyping. Architects scalable, evolvable sync systems and data models — thinking carefully about eventual consistency, failure isolation and the long-term maintainability of connector-heavy architectures. Backend Excellence: Engineers sophisticated backend solutions involving background job processing, state management across distributed systems, data normalisation across inconsistent third-party schemas, and complex migration plans. Defines and upholds engineering excellence including CI/CD, testing strategies (including integration and contract testing) and coding standards. Experience with or strong interest in modern AI-augmented workflows and agentic coding. How We Work At Perk, we take an IRL-first approach to work, where our team works together in-person 3 days a week. For certain roles, we can help with relocation from anywhere in the world, English is the official language at the office. Please submit your resume in English if you choose to apply. Perk is a general company with a diverse customer base, and we want to make sure the people behind our product reflect that. Protect Yourself from Recruitment Scams All official communication from Perk will always come from email addresses ending in @ or @ , our verified social media channels, or recruiters listed on our official LinkedIn page. We will never ask you to pay for equipment, training, or fees, request sensitive personal information such as bank details early in the process, or communicate through unofficial apps like WhatsApp, Telegram, or Signal. xbhjioe Forward it to security [at] perk .com, and we will confirm whether it is legitimate. # Postúlate en Kit Empleo: kitempleo.es/empleo/6u2c78