Top Software Engineer Jobs in Barcelona

The role involves designing, developing, and launching full stack applications, collaborating on projects, and participating in an on-call rotation to ensure system quality and performance.

The Software Engineer will join a product squad to develop and maintain functionalities on the 360Learning platform, focusing on JavaScript technologies and clean architecture.

As a Software Engineer I, you will design and develop backend systems for Affirm's servicing platforms, ensuring operational excellence and collaborating with various teams while meeting project goals.

As a Software Engineer at Perk, you will develop travel-related products, integrate APIs, and design system architecture working in an Agile environment while mentoring colleagues.

The Senior Software Engineer will develop software solutions, mentor juniors, collaborate on projects, and integrate GenAI features within a team environment focused on cancer research.

The System Software Engineer prepares customer analysis for traffic control software, develops customer-specific solutions, and supports project management and engineering teams throughout the project lifecycle.

As a Software Engineer, you'll design and develop software solutions, solve technical problems, lead projects, and collaborate with product and operations teams.

The role involves training large language models to write production-grade code, comparing snippets, refactoring code, and providing feedback for reinforcement learning processes.

The role involves training large language models to write production-grade code using Java, performing code reviews, refactoring, and providing detailed explanations for coding decisions.

Train large language models to write production-grade code across languages, review and improve AI-generated code, and maintain the RLHF feedback pipeline.

As a Rust Software Engineer, you'll train large language models to generate and refine code, compare snippets, and ensure quality through detailed code reviews.

The Software Engineer will train large language models by reviewing code snippets, improving AI-generated code, and providing detailed feedback, ensuring efficiency and correctness.

As a Software Engineer in AI, you will train large language models, rank and review code snippets, and provide feedback for improvements.

Train large language models to write code by reviewing code snippets and providing feedback for improvements. Requires 3+ years of Ruby experience.

The Software Engineer role involves developing high-quality web and mobile applications, collaborating with cross-functional teams, and ensuring core engineering practices while maintaining a strong user focus.

As a Software Engineer on the Platform team, you'll design, develop, and maintain backend APIs, enhance system performance, and collaborate across teams to align architecture with product strategy.

As a Software Engineer II, you'll develop backend and frontend applications, support API layers and integrations, and collaborate with cross-functional teams to enhance the product's performance.

As a Growth Software Engineer, you will scale user and business growth through experimentation, data-driven development, and cross-functional collaboration, particularly in user engagement and retention.

The AI Software Engineer will develop and improve Joko's AI shopping assistant, focusing on architecture, evaluation, data management, and personalized user experiences, while collaborating with product teams.

The Lead Software Engineer will develop AI-driven software solutions, focusing on backend systems, microservices, and collaborating with cross-functional teams to influence strategic decisions.

Own availability and performance of mission-critical services, improve scalability and observability, build platform tooling, practice sustainable incident response, participate in on-call rotation, collaborate with product teams, and follow FinOps best practices.

The role is for a Graduate Software Engineer to join the Backend team, focusing on software development and learning in a fast-paced environment.

Design and optimize back-end services for data processing, maintain service contracts, ensure quality engineering practices, and collaborate with product teams.

The Senior Backend Software Engineer will enhance and optimize the Voice Squad's telephony services, manage distributed systems, and lead architectural decisions while collaborating on AI-powered communication solutions.

The Senior Golang Backend Software Engineer will enhance messaging features, collaborate on cross-functional projects, and help build a unified ticketing system within a multicultural engineering team.