Top Software Engineer Jobs in Barcelona

The Fullstack Software Engineer will develop the contract lifecycle platform for Alan's B2B insurance business, focusing on renewals, compliance, and user experience through a unified tech stack across multiple countries.

As a Fullstack Software Engineer, you will build scalable backend systems for health insurance, manage contract lifecycles, and collaborate closely with teams to enhance user experience while addressing complex challenges in healthcare technology.

Develop and enhance the Ops AI Platform, focusing on building AI agents for operational tasks, integrating them with internal tools, and ensuring user autonomy in operations. Mentor engineers and influence system architecture.

As a Fullstack Software Engineer, you'll design and maintain internal services and APIs, enabling product teams to innovate efficiently and effectively while enhancing user experience across multiple regions.

The role involves creating and automating infrastructure features for data platforms using Python, with a focus on distributed systems and collaboration within a global team.

Join Canonical's OpenStack Engineering team to develop and manage Charmed OpenStack and Ceph, focusing on Python code and infrastructure automation.

The role involves collaborating with a distributed team to develop and debug software for Linux, focusing on high-quality code and system-level issues.

The role involves automating OpenSearch operations by developing features in Python, collaborating with an international team, and providing expertise on data platforms.

Develop and maintain system-level Go code, model data, and design database schema for cloud infrastructures. Collaborate with a distributed team to ensure code quality.

As a Software Engineer on the data platform team, you'll automate data platform operations, write Python code, and collaborate on solutions within a distributed team.

The role involves taking ownership of complex projects for strategic partners, collaborating with customers' teams, and using coding skills to innovate and solve technical challenges.

As a Senior Software Engineer, you will develop and optimize services for the Blacklane platform, uphold coding standards, collaborate within agile teams, and leverage your expertise in various backend technologies.

The Senior Software Engineer will architect modernization, transition legacy systems to Java/Spring, collaborate globally, and ensure backend performance.

Build high-throughput, low-latency integrations to replicate data from databases, lakes, and warehouses into ClickHouse. Debug production issues using runtime diagnostics and observability, improve system reliability and automation, write documentation, participate on-call, work with customers, and drive product and technical roadmap decisions.

As a Senior Software Engineer, you will operate and manage cloud-based database infrastructure, improve system reliability, and collaborate on scaling strategies while managing key production clusters.

The Software Engineer will design, develop, and support technical solutions, working collaboratively with teams to integrate technologies for environmental projects about climate change and biodiversity.

As a Full-stack Software Engineer, you will enhance developer workflows, build AI-native tools, and ensure robust infrastructure for product teams at Alan, focusing on seamless integration and operational excellence.

Define and evolve system architecture, translate business needs into scalable solutions, drive architectural decisions, contribute hands-on to implementations, modernize monoliths, and promote engineering best practices across teams.

Develop and enhance functionalities for a climate tech platform, engaging with product teams and improving team culture.

The Senior Software Engineer will take technical ownership of AI-driven solutions, implement backend services, and collaborate with cross-functional teams to improve healthcare and scientific discovery.

Own and improve Langfuse SDKs (Python and TypeScript), ensuring reliability, performance, API design, integrations with AI frameworks, OpenTelemetry support, documentation, and developer experience.

The Senior Software Engineer will develop and maintain a documentation platform, collaborating with stakeholders to enhance usability and efficiency in a multi-language development environment.

Lead optimization of concurrent systems, scale backend microservices, and collaborate with developers and engineers on deployment for retail solutions.

As a Software Engineer at XBOW, you'll develop full-stack systems, focusing on backend services using TypeScript, Kotlin, and Go, while deploying on AWS. The role involves end-to-end ownership of projects and collaboration across teams to enhance AI-driven cybersecurity solutions.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.