Top Software Engineer Jobs in Spain

As a Senior Software Engineer, you will develop embedded software for motor control and inverter systems, ensuring compliance with automotive standards while collaborating with cross-functional teams.

Lead engineering strategy and operations for Fever's marketplace, improving systems for search, checkout, and post-purchase, while managing a high-performing engineering team.

Lead the technical direction and implementation of Grafana's authentication systems (OAuth/OIDC/SAML/LDAP/SCIM). Build and operate low-latency, high-throughput Go services, drive cross-team architecture, mentor senior engineers, and ensure reliability, security, and scalability of identity at edge.

As a Senior or Staff Software Engineer focused on SRE, you will optimize performance, manage infrastructure with code, drive observability, and collaborate with teams to enhance system reliability and efficiency.

As a Senior Software Engineer, you will design, develop, and implement features for the core products using NodeJS and Java while ensuring clean and efficient code. You will participate in monitoring deployments, collaborate in an agile environment, and contribute to technical decisions.

Build production-grade AI agent infrastructure for Fever’s Product Engineering organization, including agent harnesses, sub-agents, guardrails, evaluations, knowledge bases, cloud development environments, CI/CD delivery systems, observability, and measurement platforms. Optimize AI workflows for quality, speed, and cost while improving planning, coordination, and communication across engineering squads. Own backend systems end to end and establish engineering standards for reliable production software.

Design, develop, and maintain high-quality software for automated document-processing products. Collaborate with stakeholders to translate business needs into product improvements, contribute to architecture and technology decisions, conduct code reviews, optimize scalability and performance, lead major technical initiatives, mentor teammates, and improve engineering practices.

Design, develop, test, debug, and optimize scalable software components, cloud-based APIs, microservices, and integrations using engineering best practices. Contribute to architecture discussions, deployments, automation, and technical improvements. Collaborate with product and cross-functional teams, support junior engineers through reviews and knowledge sharing, communicate with stakeholders, and participate in technical interviews and documentation.

The Senior Backend Developer will drive impact by collaborating with stakeholders, design and develop high-quality software, shape architecture, and lead technical direction while promoting innovation and collaboration within the team.

Develop, maintain, and execute automated tests and regression suites for embedded Radio IC/SoC products. Integrate tests into CI/CD pipelines, support traceability, investigate defects, contribute to SQA frameworks, and collaborate with cross-functional teams. Use lab instrumentation and ensure audit-ready validation and quality metrics.

Design, build, test and maintain Workday integrations and Extend capabilities. Own incident and defect resolution, maintain CI/CD pipelines, support deployments, collaborate within agile squads, and ensure testability, compliance and auditability of HR platform solutions.

Lead hands-on initiatives that improve software engineering across multiple teams. Build reusable platforms, developer tools, automation, delivery pipelines, and engineering standards. Mentor engineers, improve developer experience, champion responsible AI-powered practices, and strengthen observability, reliability, security, performance, and cost efficiency. Partner with architecture, security, risk, governance, data, and engineering teams to deliver resilient cloud-based solutions.

Provides hands-on technical leadership across Business Banking technology, designing platforms, reusable tools, engineering standards, automation, and developer self-service capabilities. Partners with delivery squads and central technology teams to improve software delivery, DevSecOps, cloud adoption, observability, reliability, performance, security, and cost optimization. Mentors senior engineers and promotes AI-powered engineering practices, scalable guardrails, and consistent technology outcomes.

Design, develop, deploy, and maintain scalable backend services with high availability and low latency. Collaborate cross-functionally, own team services end to end, participate in on-call rotations, and promote engineering best practices including agile, continuous delivery, testing, traceability, and observability. The role involves API-driven solutions, microservices, cloud-native technologies, and infrastructure such as Docker, Kubernetes, databases, messaging systems, and monitoring platforms.

Build and improve Restream’s web interfaces and user-facing features for the AI Clips team. Design UI and business logic, collaborate with product designers, participate in code reviews, improve system reliability, and evaluate emerging technologies. The role requires strong JavaScript and TypeScript expertise, advanced React knowledge, CSS preprocessor experience, and familiarity with backend development, cloud infrastructure, containers, and continuous deployment.

Execute and improve manual and automated Android test cases, find and track defects, collaborate with Agile teams, enhance test coverage and QA processes, and mentor peers to ensure mobile app quality.

Design and develop scalable backend services, integrate AI capabilities, and improve existing systems. Collaborate across teams to enhance the CMC platform.

Design, build, and operate backend services for the orchestration engine and automated decisioning pipeline. Deliver orchestration features, improve resilience (idempotency, backpressure, retries), maintain observability, participate in on-call rotations and incident response, and drive engineering quality via code reviews, CI, documentation, and mentoring.

Lead design and ownership of shared libraries, Spring Boot starters, and agentic frameworks. Set standards for agent orchestration, evaluations, and guardrails. Mentor teams on Python-based agents (LangChain/LangGraph), drive adoption, prototype research directions, and improve developer experience across Kotlin backend and client libraries.

Join Grafana Labs as a Staff SRE focused on database products (Mimir, Loki, Tempo, Pyroscope) to own production reliability for high‑SLA customers. Partner with product squads, design and implement automation and SLOs, lead incident response and post-incident reviews, improve observability and alerting, and drive scalable, fault-tolerant solutions and reliability engineering best practices.

Leads architectural and code-level performance engineering for Elasticsearch, from design through production. Develops performance models, profiles distributed systems, identifies bottlenecks, optimizes logging, metrics, vector search, and ES|QL, and builds benchmarking and regression-detection automation. Drives AI-assisted optimization harnesses, collaborates across engineering teams, establishes performance-focused practices, and mentors engineers. The role requires deep Java, JVM, concurrency, distributed systems, benchmarking, and large-scale data-store expertise.

Architect and build production AI-powered HR systems using agentic workflows, multi-agent systems, APIs, and workflow automation. Integrate Workday and other HR tools, implement governance, audit logging, privacy controls, and human approval gates, and ensure reliable payroll-adjacent workflows. Document solutions, train People team users, drive adoption, and measure automation impact. The role requires strong software engineering, AI application development, HR technology, Workday, data privacy, and workflow automation experience.

The Senior Software Engineer will build and optimize foundational services and SDKs for Speechify's product, collaborating with teams to enhance user experience and performance using Kotlin and other technologies.

Lead the development of native Windows desktop applications, enforce coding best practices, drive accessibility, and ensure quality across releases.

Lead design and development of Windows desktop applications, enforce best practices, ensure accessibility, collaborate with teams, manage feature lifecycles, and resolve complex issues.