Full-time Location: Madrid City Center (20% remote)At Wasmer we are working on the software that will power the next generation of Cloud Computing platforms using WebAssembly. Similarly to, we are moving WebAssembly to the server-side but completely emancipated from JavaScript. We are creating the Vercel of Cloud Computing.Read more about us here: About the roleWe are seeking a skilled backend developer with industrial-strength software engineering skills to help us enable WebAssembly on any infrastructure compiled from any programing language. You will work with Python, Django, GraphQL and a bit of WebAssembly and Rust (no prior knowledge required for the last two). Some DevOps knowledge is a nice plus.You'll work with a very technical team, in challenging problems that will move the state forward of cloud computing as we know it.You'll be working very close to the frontend team and our CEO, who is also the creator of the Python GraphQL framework: Graphene (some of his talks: Conf 2016, Django Con 2016, GraphQL Summit 2018, Compiling Python to Native Wasm 2024).About usAt Wasmer, we work on the software that will power the next generation of computing platforms for local, cloud, and edge applications using WebAssembly. Similar to how enabled server-side JavaScript, we enable server-side WebAssembly for all supported languages like C/C++, Java, Go, Rust, and many others.Our mission is to make software universally available.About youYou are a highly-skilled backend developer with expertise in Python and have curiosity and willingness to learn other programming languages like Rust. You want to work on the software that will power the next generation of Cloud and Edge Computing platforms using WebAssembly.What you'll do:Maintain, architect, and build backend APIs for our Cloud service (Wasmer Edge)Coordinate with the UI/UX and Frontend developers to implement new backend APIs (via GraphQL) that support UI and command-line functionsWrite tests and implement automated testing for backend services to deliver a high-quality user experienceOwn the backend codebase and proactively communicate ideas for improvement or potential vulnerabilities.What you'll need:Experience working with distributed team members in multiple geographies and time zones.Deep understanding and commitment to software engineering best practices and principles (such as Agile and CI/CD) and continuous improvement through measurement.Hands-on technical experience with any of the following: Python, GraphQL, C/C++, Rust, etc.Demonstrated experience in developing backend services for a SaaS product.A positive and proactive attitude.Your Qualifications6+ years of software engineering experienceBs/Ms in Computer Science (nice to have).Why Join Us?You want to work for a start-up focused on solving real problems with an open-source community-first approach for building a business.BenefitsPermanent contract "contrato indefinido."Salary (€45K - €55K) and stock options.Generous vacation policy.Monthly fitness stipend.Monthly donation for open-source contributions.Economic support for skills development, continuous learning, and attending conferences.About the interviewNormally, the interview process looks like this:Initial Interview with our team to better understand your background - Around 20 minsA technical chat - 30 minsA technical exercise - around 2-3 hours (async)A deep (paid) exercise: you'll do a technical task like you are part of our team. We will set up a Slack channel for fast communication. You'll be paid for the time spent on the project regardless of the final state of the application paid hoursA review of the exercise with the team (upon completion): we will ask questions about your implementation, challenges faced and more - 1 hourA culture fit interview min