Top Software Engineer Jobs in Spain

As a Senior Software Engineer, you'll design, develop, and maintain Golang applications, optimize performance, and lead architecture projects, ensuring high quality and collaboration with teams.

Design, develop, and deliver high-volume, low-latency payment microservices in Java. Implement new features, optimize performance, ensure testable, robust code, and drive continuous improvement.

Lead design, development, and delivery of test automation frameworks for next-gen services. Create and execute functional, end-to-end, performance, and data validation tests; integrate automation into CI/CD; work with cross-functional teams on testability, defect management, and release coordination.

As a Staff Software Engineer at Mews, you'll design scalable cloud-native systems, mentor engineers, and contribute to architectural strategy in the hospitality tech industry.

The Senior iOS Engineer will enhance modular architecture, lead feature delivery, strengthen testing, improve observability, and mentor team members.

As a Senior Software Engineer, you will architect the future of the platform, modernizing systems, and collaborating on backend solutions while ensuring observability and high-quality standards.

The Senior Software Engineer for Payments will design and maintain payment services, ensuring reliable processing in a high-volume environment, collaborating across teams, and managing production support.

Develop and maintain tools that integrate Kotlin with build systems (Gradle, Maven, JPS), improve import accuracy and performance into the IntelliJ IDEA project model, and implement reliability and new features for Kotlin build tooling.

The Senior Full Stack Engineer will develop production-grade code, mentor team members, and implement solutions for high traffic, using technologies like JavaScript and Python.

Design, implement, and maintain systems for a modern ledger at Alpaca. Collaborate with teams to deliver scalable solutions for trading financial assets.

The Software Development Engineer will work in a Scrum squad to develop features, modernize applications, and ensure delivery of software solutions.

Responsible for designing, developing, and delivering high-volume, low-latency payment applications. Contribute across the development lifecycle, write testable code, ensure design compliance, and drive continuous improvement and performance optimizations.

Design, implement, and support highly available, globally distributed backend infrastructure (APIs, gateways, caches), troubleshoot production incidents, extend CI/CD pipelines, and collaborate on designs within an Agile team.

Design, implement, and own high-performance, event-driven backend services. Improve scalability, reliability, and observability; profile and optimize systems; collaborate with Product, Data, and other teams; mentor peers and drive best practices for testing, deployment, and architecture.

Design and build backend services for a multi-tenant cashier system, integrating with blockchain networks and ensuring scalability and security in a financial context.

Design, build and maintain distributed systems and microservices using modern Java. Work with teams to implement scalable cloud-first solutions while promoting best practices in software development.

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

Seeking a Senior Software Engineer to work on gameplay and AI for Age of Empires, focusing on C++ development in a collaborative environment.

The Senior Software Engineer will contribute to the software development life cycle, create technical documentation, and improve software functionalities.

Design, implement and maintain high-volume, low-latency payment microservices across the full development lifecycle. Write testable, efficient code, optimize performance, work on database tuning, and propose architectural improvements for mission-critical payments systems.

Lead the technical vision for the HR platform, drive AI and machine learning projects, and mentor senior engineers to ensure security and scalability in software delivery.

The Senior Software Engineer will enhance cloud development by building low-level runtime systems, focusing on performance and reliability. Responsibilities include developing APIs, optimizing distributed systems, mentoring engineers, and contributing to open-source projects.

Design, implement, and own end-to-end backend features in a Python-based, event-driven platform. Improve architecture for performance, reliability, and scalability, participate in design reviews, mentor peers, ensure CI/CD and testing best practices, and collaborate with Product and Data teams to deliver production-ready services.

Build and maintain Finance & Compliance services to calculate revenue, invoice partners and customers, automate tax reporting, and ensure scalable, reliable transaction processing. Design end-to-end features, participate in architecture, improve observability and performance, and mentor teammates while owning core components.

Develop cross-platform mapping APIs for mobile and desktop applications using C++. Collaborate with teams to ensure high-quality software development.