Empleos de remote java backend engineer ai en Barcelona

Supersonik seeks Senior Engineers to join our core team in Barcelona. You will tackle complex technical problems, shape product architecture from day one, and thrive in a fast-growing startup. You should be fluent in modern Python, async programming, and adept at building scalable, event-driven systems. You’ll work across frontend to infrastructure to...

NeuralTrust in Barcelona, Spain, is seeking a Senior Software Engineer to scale our platform and advance AI security technologies. You will contribute to backend systems using Go and Python, own end-to-end initiatives from design to deployment, and collaborate with a talented, multi-skilled team.The role emphasizes building robust, secure, and measurable...

About FinomFinom is a European tech startup headquartered in Amsterdam, and we’re on a journey towards revolutionizing the financial landscape for entrepreneurs worldwide. Our mission is to develop an all-in-one financial B2B solution that integrates banking functions, accounting, financial management, and invoicing into a seamless, mobile-first...

Stark Future SL is building the backend for AI-powered systems in a fast-moving environment near Sant Boi de Llobregat, Barcelona. You will own web service design, APIs and architecture for premium electric motorcycles’ web platforms. The role requires deep experience with distributed systems, Node.js/TypeScript, and CI/CD. You will collaborate with AI,...

Stark Future SL is seeking a Senior Backend Engineer to design, develop, and operate production web services that power our AI-enabled backend. You will own critical components and collaborate across product, AI, and operations teams in a fast-moving Barcelona-based environment. Join a ambitious team building premium electric motorcycles and a scalable...

Creative Fabrica in Barcelona seeks a Senior Backend Engineer (Go) to architect multimodal generation pipelines and design high-concurrency systems for AI workloads. You will build Go-based microservices, optimize distributed queues, and work with AWS, Kafka, SQS, and modern APIs to deliver fast, reliable creative tools to a global audience. You will...

Rover is looking for an experienced backend software engineer to join our Trust & Safety Engineering team in Barcelona. You will design, build, and maintain scalable backend systems, collaborate with product, design, data science, and frontend engineers, and apply AI-augmented workflows to shipping code. We value strong coding practices, ownership, and a...

# Lead Software Engineer - Data Engineering## **Your role at Dynatrace**At Dynatrace, Data Engineering manages and transforms data into information for decisionmakers. This includes assessment, design, acquisition and/or implementation of tools, stores and pipelines for turning data into business value.We are seeking a Lead Software Engineer in Data who will...

Preply is seeking a Senior Engineer to join the Engineering Team in Barcelona to develop backend features with Python/Django, and to build integrations with third-party vendors for an AI-enabled learning platform.You will collaborate with Product, Design, Data Analytics and Engineering to deliver high-quality features through CI/CD, maintain robust testing,...

Bsport is seeking a Senior Backend Engineer to join the Community & Engagement team, building backend systems powering marketing and communications for studios worldwide. You will work on agentic AI initiatives, the marketing suite, and data foundations to enhance scalability and channel integrations.You will design and evolve backend architectures,...

Backend & AI Engineer needed to build and maintain Node.Js services and APIs, improve MongoDB performance, and develop AI generation workflows for an AI platform.Must be based in Barcelona.

Nutrient is seeking a backend engineer who designs with the database in mind, building fast data models and scalable systems for large document workloads. You’ll shape Elixir/Phoenix-based services, optimize PostgreSQL usage, and contribute AI-driven tooling to accelerate engineering tasks. Work is fully remote and async-first, offering ownership of...

Tecdata Engineering, con sede en Barcelona, busca un perfil de AI Engineer / Backend Engineer para diseñar e implementar soluciones de IA en producción. El puesto es híbrido: 3 días en oficina y 2 días remoto.Sea uno de los primeros solicitantes, lea la descripción completa del puesto a continuación y luego envíe su candidatura para que sea...

Migma seeks exceptional Backend Product Engineers to build infrastructure powering AI-driven email marketing from Barcelona. You will design and scale systems handling millions of emails, real-time content generation, and seamless integrations. Based in Barcelona, the role is on-site or hybrid. You will work with a small, ambitious team building a...

Kairós Digital Solutions SL busca un/a Lead Backend Engineer para liderar la modernización de sistemas críticos y la migración de arquitecturas legacy. Serás Tech Lead de referencia, orientando a otros ingenieros e influyendo en decisiones técnicas transversales. Trabajarás con Java 21 y Spring Boot, junto a Kafka y plataformas Cloud (AWS/GCP), IaC y...

Clarivate is seeking a Senior Software Engineer for AI Product Development to join the Cortellis CMC team in Barcelona. This permanent full-time role involves the design and implementation of backend services, with a focus on AI capabilities and scalability. Candidates should have a Bachelor’s degree in a related field and over 5 years of experience in...

Acclaim AI is expanding its Backend Lead role for an AI-powered product built on modern LLM technologies. You will own the platform services domain, partnering with product and engineering to turn ambitious ideas into scalable, production-ready systems.You will lead a small backend team, drive architecture decisions, ensure observability and reliability, and...

InvestEngine is hiring a Senior Backend Engineer for the Payments Team. You will design, implement and evolve backend services in Python 3.11 using Django/DRF, focusing on payment flows, integrations and system reliability.You’ll work with MySQL, Redis and modern tooling while shaping architecture and driving performance improvements. You’ll collaborate...

New Relic is seeking a backend engineer to design, build, and operate JVM-based microservices (Java/Kotlin) powering massive telemetry pipelines and observability features. You will own services end-to-end, implement asynchronous patterns, and contribute to a scalable, resilient platform used by engineers globally. The role emphasizes strong collaboration,...

Lighthouse is hiring a Backend Engineer for its Crawler Engineering team in Barcelona, Spain. You will design and build high-performance data acquisition systems in Rust, handling billions of data points from the web and interfaces with proxies, HTTP stacks, and browser tooling. Work from home or officed based in a flexible, globally distributed environment....