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Senior Backend Engineer – AI Agents at seQura | Barcelona

seQuraBarcelona, Catalunya [Cataluña], Spain
On-site Full-time

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Experience Level

Senior

Qualifications

Qualifications:Proven experience in backend development, particularly in building scalable systems. Strong proficiency in programming languages such as Python, Java, or Node.js. Experience with database management and APIs. Familiarity with AI technologies and frameworks is a plus. Excellent problem-solving skills and ability to work collaboratively in a team environment.

About the job

About seQura

seQura is at the forefront of fintech innovation, delivering flexible and user-friendly payment technologies that enhance merchants' ability to attract, convert, and retain customers. We are committed to improving sales performance by customizing solutions across various sectors including Retail, Education, Eyewear, Repairs, and Travel, addressing specific challenges to achieve outstanding results.

Our mission is to empower savvy consumers seeking value, convenience, and flexibility in their shopping experiences. We offer innovative payment options that allow customers to save, access interest-free credit, or make manageable payments over 24 months.

Founded in Barcelona, seQura is a rapidly growing fintech company expanding its reach throughout Southern Europe and Latin America, boasting over 50% CAGR and nearing €100M in Annual Recurring Revenue. Our exceptional service has earned us the trust of over 5,000 businesses and nearly 2 million shoppers, reflected in our impressive NPS of 87%, a Trustpilot rating of 4.7/5, and a Glassdoor rating of 4.7/5.

About the Role

We are developing seQura’s Smart Agent platform, an advanced intelligent agent system designed to assist shoppers throughout their purchasing journey. This platform integrates Large Language Models (LLMs) for human-like interaction with retrieval-augmented generation (RAG) utilizing seQura’s data, web crawling, and structured product information.

This position focuses on the creation of robust, production-ready backend systems that empower these agents to effectively address shopper needs. AI research, data science, or mathematical modeling are not required, as all necessary frameworks are already established.

Key Responsibilities:

  • Design and implement scalable backend systems for agent workflows, managing context, state, and interactions.

  • Safely and efficiently integrate AI agent functionalities with core platforms such as payments, shopper accounts, risk management, and merchant services.

  • Utilize RAG frameworks and structured data to generate intelligent responses without the need for model fine-tuning.

  • Collaborate with Product, Frontend, and other teams to deliver seamless user experiences.

About seQura

seQura is a leading fintech company based in Barcelona, specializing in innovative payment solutions that enhance consumer shopping experiences while supporting merchants in increasing sales and customer retention.

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