Top Software Engineer Jobs in Barcelona

As a Software Engineer, you'll build internal tools and integrations to improve company efficiency, translating business needs into technical solutions.

Develop and optimize Go-based backend systems for an e-commerce platform. Collaborate with QA, refactor code, improve performance and stability, perform code reviews, and document software solutions.

As a Senior Tech Generalist, you'll build and maintain end-to-end systems, improve scalability, and ensure reliable financial operations while mentoring others in a dynamic team environment.

Design, develop, and optimize scalable, reliable software systems. Ensure quality, performance, and uptime; mentor junior developers; implement APIs, clean architectures, and distributed solutions; monitor metrics and gather stakeholder feedback to drive continuous improvement.

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.

The Software Engineer will collaborate on backend technology products, building and supporting Monzo's banking platform, focusing on customer outcomes and efficient software development.

Collaborate with teams to develop backend systems for a technology product using various tools and technologies, focusing on customer outcomes and resilience.

Build and ship features and integrations for TheForkManager. Work with product and design, perform technical analysis, maintain code quality, fix bugs, mentor juniors, and participate in interviews and restaurant visits.

As a Senior Software Engineer at Perk, you'll own feature lifecycles, contribute to system architecture, mentor colleagues, and prioritize engineering excellence through collaborative, AI-driven development across teams.

As a Senior Software Engineer, you will design and maintain integration systems, manage user provisioning, optimize integrations, and collaborate with cross-functional teams and enterprise customers.

The Senior Software Engineer will design and oversee identity and authentication systems, mentor peers, and contribute to technical roadmaps, ensuring the integration of security within user management systems.

As a Software Engineer for the Identity Platform, you will modernize user identity systems, develop backend services in Java, work on compliance workflows, and improve system reliability while collaborating across teams to meet regulatory requirements.

Join a growing team as a Junior Java Software Engineer, designing and coding Java applications, participating in Agile development, and ensuring code quality through TDD.

The Senior Developer will design, develop, and maintain software solutions in Golang, collaborating with cross-functional teams to ensure code quality and system reliability while adhering to best practices.

The Senior Software Engineer will lead the development of the payments experience at Perk, ensuring reliability and user satisfaction by building and maintaining the system for payment processing, refunds, and fintech integrations, while collaborating with cross-functional teams and mentoring peers.

As a Software Engineer, you will develop systems for financial data integrity, automate reconciliations and reporting, and support ERP integrations.

You will lead engineering efforts for backend system development, collaborate with global teams, ensure operational availability, and develop talent on your team.

Develop, prototype, and deploy sensor calibration algorithms and tooling for autonomous mobile robots. Write and maintain high-quality C++, Python (and Rust) code, debug calibration issues, perform root-cause analysis, and deploy solutions on ARM64 SoCs while collaborating with global teams and SLAM experts.

Seeking a Full-Stack Software Engineer to build the core of an Agentic AI Platform. Responsibilities include frontend and backend development, product design collaboration, and infrastructure management with a focus on clean, maintainable code.

Design and implement features for scalable games, ensuring quality, performance, and security, while collaborating in an agile environment.

Design and build scalable backend services using Node.js and MongoDB. Collaborate with teams for technical solutions, and ensure reliable architecture with clean code.

As a Senior Software Engineer, you will enhance the REDAPL platform, leading initiatives in data ingestion, processing, and supporting infrastructure-related projects while mentoring other engineers.

Lead the Developer Experience team to build internal tools, CI/CD and GitOps workflows, and AI-assisted developer tooling. Improve provisioning, deployment, and environment setup, reduce operational toil, partner with Platform/SRE/Security/FinOps, and measure impact of tooling.

As a Software Engineer at Back Market, you'll develop and manage payment services in an agile environment. You'll focus on backend systems, contribute to clean code, and collaborate with interdisciplinary teams to optimize user experiences and ensure secure payments.

Lead design and development of scalable C#/.NET applications, establish architectural standards and technical roadmap, mentor engineers, ensure quality/security, participate across the full software lifecycle, and act as full-stack developer and technical authority.