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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Software Engineer - **Company:** Shopfully - **Location:** Spain (Remote available) - **Salary:** €50,000.0 - €65,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, PHP (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon S3, Android Software Development, Automation of Tests, Software Quality, Code Review, Continuous Integration, Software Design Patterns, Distributed Systems, Elasticsearch, Fault Tolerance, Protocol Buffers, Mobile Application Software, NoSQL, Software Engineering, Technical Debt, Backend, Git, Event Driven Architecture, Integration Tests, Solid Principles, Code Testing, Apache Kafka, Functional Programming, Api Gateway, Amazon Simple Queue Service (SQS), Grpc, Serverless Computing, Docker, Microservices - **Published:** June 24, 2026 - **Apply:** https://es.indeed.com/viewjob?jk=3e78dab90b227b3f ## About the Role Do you have experience in iOS?, * 7+ years of backend or full-stack development experience designing and building scalable, reliable backend systems . * Proven experience with AWS services (eg: Lambda, API Gateway, S3, etc.). * Strong experience with relational and/or NoSQL databases; Experience with Docker and Kubernetes. * Experience with event-driven systems and messaging (e.g., Kafka, SQS/SNS). * Strong system design expertise with hands-on experience operating and troubleshooting production systems. * Software engineering practices: * + Strong grasp of clean-code principles and backend design patterns. + Experience writing and maintaining automated unit and integration tests. + Experience improving CI/CD pipelines and enforcing testable coding practices. + Proficient with Git and modern collaboration workflows. * Demonstrated use of AI tools in software workflows, with the ability to articulate benefits, limitations, and lessons learned. * Willingness to participate in on-call rotations and support production systems. At our company, we value diversity and actively encourage it - we believe a variety of perspectives and backgrounds makes us stronger. We focus on potential rather than on having a "perfect" CV. If this role excites you and you believe you could grow into it - even if you don't tick every single box in the requirements - we'd love to hear from you! NICE TO HAVE * Experience with PHP, Serverless Framework, OpenSearch / Elasticsearch, Protobuf, GRPC. * Experience with Go. * Experience building backend systems that support mobile applications. * Experience contributing to shared platforms or organization-wide technical initiatives. * Exposure to large-scale, distributed systems serving millions of users. * Experience contributing to or maintaining open-source libraries. ## Description As a Senior Backend Software Engineer, you will join a cross-functional team responsible for the backend systems that power our iOS and Android applications, ensuring they are scalable, secure, and reliable. In this role, you will own backend services end to end, contribute to the design of large-scale systems, and help guide technical decisions within the team. You will act as a technical leader by influence, mentoring other engineers and raising the overall engineering bar through design, code quality, and collaboration. You will work closely with Software Engineers, Product Managers, Designers, and other Engineering teams in a collaborative, international environment., * Design, and evolve scalable, secure, fault-tolerant distributed systems, within an event-driven microservices architecture * Own and advance backend service architecture with a platform mindset, creating reusable services, APIs, and shared components that enable internal developer community * Translate product requirements into clear, well-designed technical solutions, collaborating closely with Product, Design, Quality and Data * Own the end-to-end software development lifecycle, from technical design, estimations, implementation, testing, deployment to production support * Write clean, robust, and well-tested code, applying SOLID principles, proven design patterns, automated testing, and CI/CD best practices while actively reducing technical debt * Act as a senior technical leader, guiding architectural decisions, mentoring through code reviews, and serving as a point of reference during production incidents * Integrate AI-assisted development tools into your daily workflow and help the team adopt effective practices - treating AI tooling as a core part of engineering productivity, not an experiment., We champion autonomy, flexibility, and a hybrid work model, empowering you to own your work Access to learning opportunities and regular feedback sessions Enjoy our central, modern offices featuring fresh snacks, coffee (including vegan options!), and ergonomic setups Engage in meaningful team events: offsites, happy hours, company parties and celebrations that unite us beyond daily tasks We provide all the necessary equipment for you to work effectively and set up your workspace, wherever you are Benefit from additional country-specific advantages based on local contracts and practices ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Boosting OpenSearch Performance: gRPC Search in Action](https://www.wearedevelopers.com/videos/1935-boosting-opensearch-performance-grpc-search-in-action) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)