Backend Engineer
hace 1 día
Want to put your job search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at and let the opportunities come to you. ____________________________________________________________ The Role We are seeking an experienced Backend Engineer who is excited to build the technical backbone of a new generation travel platform. You’ll work with Java and Spring Boot to design and implement scalable, resilient backend services, and use databases like MySQL, MongoDB, and ElasticSearch to power search, personalization, and booking flows. Familiarity with Linux systems, AWS, and microservices architecture will help you ship reliable systems at scale. Core Responsibilities Design, develop, and scale backend systems using Java and Spring Boot. Create low-latency search infrastructure (ElasticSearch, caching, query optimization). Build and maintain supplier integrations across hotels, chains, and experiences, ensuring stability and fault tolerance. Implement real-time personalization and ranking logic to improve customer discovery and booking conversion. Enable AI-powered experiences by building APIs, data pipelines, and scalable systems that support recommendations, personalization, and conversational interfaces. Develop and maintain database schemas, queries, and stored procedures (MySQL, MongoDB, ElasticSearch). Deploy and optimize services on Linux and AWS environments (EC2, S3, RDS, Lambda, API Gateway). Implement and evolve microservices architecture; design APIs for communication between services. Monitor backend systems in production, troubleshoot issues, and deliver timely fixes. Collaborate with product, growth, and engineering peers to translate customer needs into backend solutions. Participate in code reviews, debugging, and documentation to ensure quality and maintainability. Stay current with new backend and AI technologies, bringing forward ideas for innovation and scale. Candidate Requirements Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field. 2–5 years of backend development experience with Java and Spring Boot. Strong knowledge of relational and NoSQL databases (MySQL, MongoDB) and ability to design efficient schemas, queries, and stored procedures. Familiarity with ElasticSearch and interest in building low-latency search systems. Hands-on experience with Linux systems and deploying/maintaining backend services in production. Experience with AWS services (EC2, S3, RDS, Lambda, API Gateway) and cloud-native deployments. Understanding of microservices architecture and proven experience designing and implementing APIs for service communication. Strong problem-solving and analytical skills with a focus on scalability, reliability, and performance. Excitement to work in an AI-first company, building systems that power personalization, recommendations, and AI-driven experiences at scale. Excellent communication skills and the ability to collaborate effectively across product, growth, and engineering teams. ____________________________________________________________ Want to put your job search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles. Sign up now at and let the opportunities come to you.
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Senior Backend Engineer
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Valencia, España Global M A tiempo completoSenior Backend Engineer: Build Next-Gen AI Products!Are you a seasoned Backend Engineer ready to make a meaningful impact at a fast-growing startup? Join our core tech team and help build the scalable, robust backend systems that power our next-generation AI platform.This role offers significant influence from day one, working closely with the CTO and...
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Senior Backend Engineer
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Senior Backend Engineer
hace 1 día
Valencia, España XpertDirect A tiempo completoSenior Backend Engineer (IoT Platforms) – Remote (Barcelona, Spain)¿Es usted el candidato adecuado para esta oportunidad? Asegúrese de leer la descripción completa a continuación. Experience: 5+ years Work Model: Remote-first | Hybrid option in Barcelona About the Role Build scalable backend platforms powering connected devices across Europe. What...
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Valencia, España Plug and Play Tech Center A tiempo completo**About Us** At Plug and Play our mission is to empower, connect, and invest in startups who are challenging the world of today by creating the technologies of tomorrow. We are privileged to work alongside exceptional founders every day, and are deeply committed to continuing to build an ecosystem that supports success for founders, startups, and companies...
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Valencia, España Mercadona Tech A tiempo completoSobre el rolEn Mercadona Tech, la spin-off innovadora de Mercadona dedicada a transformar la experiencia de compra online de productos de supermercado, estamos en búsqueda de un/a Backend Engineer para unirse a nuestro Tech Hub en Valencia. Buscamos a alguien apasionado/a por la tecnología que nos ayude a seguir impulsando el crecimiento y desarrollo de...
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Valencia, España Mercadona Tech A tiempo completoSobre el rolEn Mercadona Tech , la spin-off innovadora de Mercadona dedicada a transformar la experiencia de compra online de productos de supermercado, estamos en búsqueda de un/a Backend Engineer para unirse a nuestro Tech Hub en Valencia . Buscamos a alguien apasionado/a por la tecnología que nos ayude a seguir impulsando el crecimiento y desarrollo de...
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Backend Engineer
hace 1 semana
Valencia, España Calyptus A tiempo completoWant to put your job search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles.Sign up now at and let the opportunities come to you.The RoleWe are seeking an experienced Backend Engineer who is excited to build the technical backbone of a new generation travel platform.Si sus...
