> Markdown version of [/jobs/ext/1599533-software-development-engineer-ii-fulfillment-optimization](https://www.wearedevelopers.com/jobs/ext/1599533-software-development-engineer-ii-fulfillment-optimization). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Development Engineer II, Fulfillment Optimization - **Company:** Amazon.com, Inc. - **Location:** Madrid, Spain - **Contract:** Internship / Graduate position - **Skills:** Amazon Web Services, Code Review, Computer Programming, Software Design Patterns, Software Engineering, Event Driven Architecture, Information Technology, Build Process, Software Coding, Software Version Control - **Published:** July 16, 2026 - **Apply:** https://www.jobleads.com/es/job/ed0cf9b0698318db27cfbbc4e2b1c979b ## About the Role * Experience (non-internship) in professional software development * Experience designing or architecting (design patterns, reliability and scaling) of new and existing systems * Experience programming with at least one software programming language, * Bachelor's degree in computer science or equivalent * Experience with full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations ## Description * Design and own production software that processes complex inputs and delivers reliable outputs to downstream transportation systems * Build event-driven architectures and automated quality validation frameworks on AWS * Drive operational excellence through monitoring, diagnostics, and chaos testing to achieve five-nines availability * Collaborate with science and engineering teams to integrate model outputs with systems across Amazon's fulfillment network ## Related Videos - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [Empowering Democratic Processes: Building a Hybrid Voting Platform](https://www.wearedevelopers.com/videos/1163-empowering-democratic-processes-building-a-hybrid-voting-platform) - [Unleashing the Power of Developers: Why Cybersecurity is the Missing Piece?!?](https://www.wearedevelopers.com/videos/712-unleashing-the-power-of-developers-why-cybersecurity-is-the-missing-piece) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [AI Killed DevOps... What Now? - Lee Faus](https://www.wearedevelopers.com/videos/1759-ai-killed-devops-what-now-lee-faus) - [Measuring the Wrong Things Faster Than Ever](https://www.wearedevelopers.com/videos/100317-measuring-the-wrong-things-faster-than-ever) ## Related Articles - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)