Overview
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In this role you enable merchants to integrate payments seamlessly, guiding them from configuration to go-live and post-implementation support. You work closely with cross-functional teams to resolve integration issues, improve merchant satisfaction, and translate product improvements into actionable insights. The position sits at the heart of our merchant experiences, shaping reliable, scalable payments integrations for a general customer base. You’ll be part of a fast-moving fintech environment that values collaboration, curiosity, and impact.
Compensaciones / Beneficios
hybrid working model with flexible office days
opportunity for growth and impact
recognition for deliverables
collaboration-focused culture
global team exposure
fast-moving, ambitious environment
Responsabilidades
Provide technical support to merchants during their implementation of payment processing technology
Answer integration-related questions across configuration, debugging, documentation, testing, go-live, and post-live support
Manage incidents related to integrations (investigation, troubleshooting, escalation, resolution, reporting,



time tracking)
Collaborate with internal teams (Merchant Configuration, Sales, Account Managers, Merchant Care) to resolve issues during trials, integrations, or post-implementation support
Interact with Product teams to identify improvement ideas
Advise Manager on issues impacting customer satisfaction and recommend actions
Multitask across multiple projects and customer integrations
Maintain/update existing libraries/plugins used in integrations
Requisitos principales
Technical support experience in a Tech/FinTech company
Understanding of API, REST, webhooks and xqbhyrx logs
Strong coding skills in at least one language: Java, JavaScript, PHP, Python, Go, C#
Experience with Node.js, React is a plus
Knowledge in iOS/Android is a plus
Excellent communication skills and relationship-building
Ability to work in a customer-focused, target-driven environment
Fluency in Spanish and English (additional languages a plus)
Customer-focused mindset
Strong communication and relationship-building
Collaborative, cross-functional mindset
APIs (REST)
Webhooks and logs
Programming languages: Java, JavaScript, PHP, Python, Go, C#

📌 Senior Specialist, Implementation Engineer - Spain (Barcelona)
🏢 Checkout.Com
📍 Barcelona