Senior Backend Engineer - Ai Agents

ph3About seQura /h3 pseQura provides innovative, flexible, and easy?to?use payment technologies that help merchants acquire, convert, and retain more customers.We make a difference in sales performance by tailoring our solutions to different sectors-Retail, Education, Eyewear, Repairs, and Travel-to address unique pain points and deliver superior results./p pWe empower smart shopping for consumers who seek more value, convenience, and flexibility, offering new payment experiences that let them save, access interest?free credit, or pay in small, comfortable installments of up to 24 months./p pBorn in Barcelona, seQura is a privately?owned fintech, currently expanding across Southern Europe and Latin America, growing above 50% CAGR and approaching €100M in Annual Recurring Revenue.Over 5,000 businesses, nearly 2 million shoppers, and almost 400 employees continue to rate us as one of the most loved and trusted fintechs, with an NPS of 87%, a Trustpilot rating of 4.7/5, and a Glassdoor rating of 4.7/5./p h3About the role /h3 pWe are building seQura's Smart Agent platform, an intelligent agent system that guides shoppers before, during, and after their purchases.The platform relies on LLMs for human?like interaction, combined with retrieval?augmented generation (RAG) over seQura's data, crawling, and structured product/taxonomy information./p pThis role does not require AI research, data science, or mathematical modeling-all AI/LLM frameworks are already in place.What matters is building solid, production?grade backend systems that allow these agents to reason over shopper needs safely and effectively./p h3Responsibilities /h3 ul lipBuild robust, scalable backend systems for agent workflows, handling context, state, and interactions./p /li lipIntegrate AI agent capabilities with core platforms (payments, shopper accounts, risk, merchant services) safely and efficiently./p /li lipUse RAG frameworks and structured data to provide intelligent responses, without fine?tuning models./p /li lipCollaborate with Product, Frontend, Data, and AI teams to design systems and shape the shopper experience./p /li /ul ul lipDesign and build the backend foundations of seQura's Smart Agent platform to assist shoppers throughout the purchase lifecycle./p /li lipTransform ambiguous product ideas and shopper needs into reliable, scalable backend services./p /li lipOrchestrate agent workflows across multiple services, managing context, state, and interactions./p /li lipIntegrate intelligent agent capabilities with core platforms safely and efficiently./p /li lipContribute to architectural decisions with clarity and simplicity in mind./p /li lipCollaborate effectively with cross?functional teams, driving alignment and shared ownership./p /li lipMonitor, optimize, and improve production systems, ensuring high performance, availability, and reliability./p /li /ul h3Success Criteria /h3 ul lipThe Smart Agent platform operates at scale, handling complex shopper interactions with reliability and speed./p /li lipAgents consistently find and act on the right context to guide shoppers effectively./p /li lipBackend systems are robust, maintainable, and integrated seamlessly with core services./p /li lipStrong collaboration across Product, AI, and Engineering teams, with clear ownership and accountability./p /li /ul h3What you'll need /h3 h3Must?have /h3 ul lip5+ years of experience as a Backend Engineer./p /li lipExperience in production?grade backend systems (Ruby on Rails preferred; Python, Kotlin, Java, Elixir, or JS also valued)./p /li lipStrong knowledge of OOP, clean coding, TDD, and agile principles./p /li lipExperience with agentic systems or LLM?powered agents (RAG, workflow orchestration, chatbots)./p /li lipEnglish proficiency (Spanish nice to have)./p /li lipAttitude, ownership, and pragmatic mindset-able to build backend systems that support AI agents without needing DS skills./p /li /ul h3Nice?to?have /h3 ul lipLocated in Barcelona or willing to relocate./p /li lipExperience scaling backend services to high concurrency and low latency./p /li /ul h3Deal?breakers /h3 ul lipPure feature delivery mindset without strategic/platform thinking./p /li lipWeak stakeholder management or low autonomy./p /li lipNot data?driven./p /li /ul h3What we offer /h3 ul lipSecure, reliable, and supportive workplace with freedom to contribute your best./p /li lipFellowship and supportive culture fostering a sense of belonging./p /li lipChallenging projects to grow your skills and knowledge./p /li lipUnique, inspiring office environment in Barcelona./p /li lip23 vacation days + 2 free disposal days/year./p /li lipFlexible compensation plan for transportation, restaurants, and kindergarten with Cobee./p /li lipHealth insurance discounts with Sanitas and DKV./p /li lipFlexible working hours and hybrid or remote options./p /li lipPersonal budget for professional development./p /li lipOffice workshops and meet?ups for community participation and career growth./p /li lipHolistic Wellness Program covering occupational, physical, financial, emotional, social, and environmental consciousness, with 34 activities to choose from./p /li /ul pWe promote equal opportunity to all, regardless of age, color, gender identity, medical condition, physical or mental disability, race, religion, sexual orientation, or any other characteristic.We have an inclusive environment, and respect is above all./p /p #J-*****-Ljbffr

p /li /ul h3What you'll need /h3 h3Must?have /h3 ul lip5+ years of experience as a Backend Engineer. /p /li lipExperience in production?grade backend systems (Ruby on Rails preferred; Python, Kotlin, Java, Elixir, or JS also valued). /p /li lipStrong knowledge of OOP, clean coding, TDD, and agile principles.

p /li lipExperience with agentic systems or LLM?powered agents (RAG, workflow orchestration, chatbots). /p /li lipEnglish proficiency (Spanish nice to have). /p /li lipAttitude, ownership, and pragmatic mindset-able to build backend systems that support AI agents without needing DS skills. /p /li /ul h3Nice?to?have /h3 ul lipLocated in Barcelona or willing to relocate. /p /li lipExperience scaling backend services to high concurrency and low latency. /p /li /ul h3Deal?breakers /h3 ul lipPure feature delivery mindset without strategic/platform thinking. /p /li lipWeak stakeholder management or low autonomy. /p /li lipNot data?driven. /p /li /ul h3What we offer /h3 ul lipSecure, reliable, and supportive workplace with freedom to contribute your best. /p /li lipFellowship and supportive culture fostering a sense of belonging. /p /li lipChallenging projects to grow your skills and knowledge. /p /li lipUnique, inspiring office environment in Barcelona. /p /li lip23 vacation days + 2 free disposal days/year. /p /li lipFlexible compensation plan for transportation, restaurants, and kindergarten with Cobee. /p /li lipHealth insurance discounts with Sanitas and DKV. /p /li lipFlexible working hours and hybrid or remote options. /p /li lipPersonal budget for professional development. /p /li lipOffice workshops and meet?ups for community participation and career growth. /p /li lipHolistic Wellness Program covering occupational, physical, financial, emotional, social, and environmental consciousness, with 34 activities to choose from. /p /li /ul pWe promote equal opportunity to all, regardless of age, color, gender identity, medical condition, physical or mental disability, race, religion, sexual orientation, or any other characteristic. We have an inclusive environment, and respect is above all. /p /p #J-*****-Ljbffr

ph3About seQura /h3 pseQura provides innovative, flexible, and easy?to?use payment technologies that help merchants acquire, convert, and retain more customers. We make a difference in sales performance by tailoring our solutions to different sectors-Retail, Education, Eyewear, Repairs, and Travel-to address unique pain points and deliver superior results. /p pWe empower smart shopping for consumers who seek more value, convenience, and flexibility, offering new payment experiences that let them save, access interest?free credit, or pay in small, comfortable installments of up to 24 months. /p pBorn in Barcelona, seQura is a privately?owned fintech, currently expanding across Southern Europe and Latin America, growing above 50% CAGR and approaching €100M in Annual Recurring Revenue. Over 5,000 businesses, nearly 2 million shoppers, and almost 400 employees continue to rate us as one of the most loved and trusted fintechs, with an NPS of 87%, a Trustpilot rating of 4.7/5, and a Glassdoor rating of 4.7/5. /p h3About the role /h3 pWe are building seQura's Smart Agent platform, an intelligent agent system that guides shoppers before, during, and after their purchases. The platform relies on LLMs for human?like interaction, combined with retrieval?augmented generation (RAG) over seQura's data, crawling, and structured product/taxonomy information. /p pThis role does not require AI research, data science, or mathematical modeling-all AI/LLM frameworks are already in place. What matters is building solid, production?grade backend systems that allow these agents to reason over shopper needs safely and effectively. /p h3Responsibilities /h3 ul lipBuild robust, scalable backend systems for agent workflows, handling context, state, and interactions.