Job Closed
This listing is no longer active.
The AI Chatbot Generator that helps you create conversational experiences that turn into revenue.
AI Engineer – Agentic Systems, Backend
Location
Spain
Posted
123 days ago
Salary
0
Seniority
Senior
Job Description
AI Engineer – Agentic Systems, Backend
Landbot
• Co-define Landbot’s technical vision for agentic systems. • Translate high-level product and business problems into concrete agentic architectures and system designs. • Act as a technical reference for agentic patterns, trade-offs, and best practices across teams. • Design and build production-grade agentic systems including context engineering and memory strategies. • Integrate LLMs into backend systems with clear APIs, contracts, and failure modes. • Build guardrails, safety mechanisms, and fallback strategies to ensure predictable behavior in production. • Design scalable backend architectures to support AI workloads at scale. • Build and maintain APIs, services, and data pipelines that power AI agents. • Mentor and guide other engineers working on AI and backend systems. • Participate in architectural reviews and help raise the bar for engineering quality. • Collaborate closely with Product, Data, and Design to turn ideas into shipped value.
Job Requirements
- Proven hands-on experience shipping LLM-powered features or systems to production, beyond prototypes or internal demos.
- Experience with modern LLMs and providers (OpenAI, Anthropic, Google, and/or open-source models), including their trade-offs in quality, latency, and cost.
- Hands-on experience with Agentic architectures and workflows, Context Engineering and Retrieval-Augmented Generation (RAG).
- Practical understanding of the full lifecycle: experimentation → evaluation → deployment → monitoring.
- Experience designing evaluation frameworks for LLM systems.
- Comfortable operating in ambiguity and shaping problems, not just solving predefined tasks.
- Product-minded: you care about real users and real outcomes.
- You are fluent in English and Spanish.
- Eligibility to work in Spain.
Benefits
- Hybrid work model: flexibility to work remotely, from our Barcelona office 🏙️, or a combination of both.
- Collaborative work environment.
- Flexible working hours.
- Paid time off and flexible holidays: 26 paid days per year (23 regular days + December 24th & 31st) 🎉, plus one additional day off on your birthday.
- Annual budget for training and professional development 📚.
- Transportation ticket 🚋.
- English and Spanish lessons 🇬🇧 🇪🇸.
- Flexible compensation plan through Cobee.
- Team-building activities.
- Referral program with bonuses for bringing in talented professionals.
Related Guides
Related Job Pages
More Backend Engineer Jobs
• Collaborate with cross-functional teams to analyze business requirements and design scalable software solutions. • Develop, test, and maintain C# .NET applications using Angular or frameworks. • Design and implement database schemas, queries, and stored procedures using MSSQL. • Troubleshoot and debug software issues to ensure optimal performance and reliability. • Participate in code reviews and provide constructive feedback to peers. • Stay updated with the latest technologies and industry trends to continuously improve skills and enhance software development processes.
• designing, developing, and maintaining production-grade backend software in Java • delivering end-to-end features: from requirements analysis and design, through implementation, testing, deployment, and maintenance • working closely with engineering, product, and delivery teams to align technical solutions with business goals • participating in code reviews, pair programming, and knowledge sharing within the team • contributing to CI/CD pipelines, automated testing, and DevOps practices to improve delivery efficiency • continuously improving code quality, reliability, and maintainability of the system.
• leading the design and delivery of complex backend features and services, from concept through deployment and maintenance • developing high-quality, production-grade software using Java and Spring Boot, aligned with architectural standards • driving technical excellence by applying best practices, clean architecture principles, and robust testing strategies • mentoring junior and mid-level engineers through code reviews, pair programming, and design guidance • improving automation, reliability, performance, and overall engineering practices within the team • collaborating closely with product, delivery, and engineering teams to shape effective technical solutions • contributing to technical strategy and influencing patterns, standards, and long-term scalability
• Design, develop, and maintain scalable, secure, and high-performance backend services • Own backend architecture including APIs, databases, integrations, and microservices • Translate product requirements into robust technical solutions • Write clean, testable, and well-documented code • Ensure system reliability, performance optimization, and fault tolerance • Lead technical discussions, code reviews, and architectural decisions • Mentor junior engineers and raise overall engineering standards • Collaborate with DevOps on CI/CD, monitoring, logging, and deployments • Ensure compliance with security, data privacy, and regulatory standards (where applicable)
