Top Software Engineer Jobs in Barcelona

Canonical seeks open-source enthusiasts to optimize Ubuntu for new silicon technologies, collaborating with teams and customers to enhance software quality and performance across various platforms.

The Software Engineer will maintain and evolve an internal technical product focusing on reliability, standardization, and automation within a backend-heavy role, ensuring effective CI/CD and technical proposals.

Design, build, and maintain Ruby on Rails web applications and backend services. Translate product requirements into scalable solutions, champion TDD and CI, improve performance, lead architecture discussions, mentor teammates, and collaborate cross-functionally to ship features.

As a Software Engineer at Prosper AI, you'll design and scale AI voice agent systems for healthcare, focusing on low-latency speech and reliability systems.

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 Senior Software Engineer, you will build scalable systems, mentor engineers, and ensure high availability of data pipelines, collaborating with cross-functional teams.

The Staff Software Engineer will lead technical strategy, collaborate on product development, ensure system reliability, and mentor engineers while owning critical customer-facing systems.

Design and implement IAM solutions using SailPoint and Okta, build workflows with APIs, support PAM, and ensure compliance with security requirements.

The Senior Front End Software Engineer will lead UI development for a financial platform, mentor junior staff, and collaborate on a component library using modern frameworks and technologies.

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 Software Engineer will design, build, and deploy software for ML and AI tasks, ensuring scalability and security while collaborating with cross-functional teams and automating testing processes.

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.

As a Software Engineer, you will build and maintain scalable, secure backend systems for integrating various blockchains, ensuring client fund safety and optimizing databases.

The Lead Golang Software Engineer develops server solutions, leads technical designs and code reviews, mentors colleagues, and ensures the quality of engineering practices in the Commercial Systems unit.

The Python Software Engineer will develop and maintain test automation tools for hardware certification and improve Linux testing methods.

You will build and maintain container images, automate CI/CD processes, engage with the community, and mentor junior team members in a collaborative environment.

Lead Python Software Engineer responsible for developing solutions, collaborating on designs, mentoring team members, and enhancing engineering practices.

Develop and enhance dqlite, a distributed SQLite database, including debugging, implementing features, and engaging with the open source community.

The role involves implementing and administering CPQ solutions, configuring pricing strategies, and integrating CRM platforms like Salesforce or Microsoft Dynamics with ERP systems.

As a Golang Developer, you'll enhance system performance, build backend features for the Sportsbook platform, and collaborate across teams on quality strategies and testing automation frameworks.

The Software Engineer will develop internal tools, automate processes, and design scalable APIs to enhance revenue operations efficiency.

The role involves designing and implementing services in Rust and TypeScript, integrating new blockchains, and maintaining high-volume systems. Responsibilities also include security design, collaboration with teams on blockchain needs, and contributing to internal tools and documentation.

As a Junior Software Engineer, you will join the backend team, focusing on code quality, participating in team planning, and developing production-grade Python code. You'll learn Fever's tech stack and contribute to system development and improvements, while mentoring peers after your initial months.

Design, build, and maintain backend services for mobile tracking SDKs. Define efficient REST APIs with mobile-focused optimizations, ensure high-throughput low-latency processing, collaborate with mobile and tracking teams, own monitoring/alerting and performance profiling, and maintain high code and test quality.

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.