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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Engineer - **Company:** NN Group - **Location:** Barcelona, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Amazon Cloudfront, Amazon S3, Bash Shell, C++ (Programming Language), Ubuntu (Operating System), Code Review, Debian Linux, Linux, ECMAScript, Groovy, Java Virtual Machine (JVM), Python (Programming Language), PostgreSQL, Memcached, MongoDB, MySQL, Node.Js, NoSQL, Software Architecture, Redis, Scala (Programming Language), Software Engineering, System Programming, TypeScript, Web Services, Circleci, Scripting, Backend, Amazon Relational Database Service, Cassandra, Lodash, Functional Programming, Jenkins, Glasgow Haskell Compiler - **Published:** August 26, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role + More than 6+ years experience in a software development role + Experience with building and architecting high quality software from scratch + Strong Node.js and JavaScript skills (ES6, Babel) - experience with TypeScript and/or FlowType is a bonus + Strong understanding of asynchronous I/O + Excellent software architecture skills and a passion for maintainable, organized code + Experienced with AWS, EC3, S3, RDS, CloudFront/CDNs + Expert with Linux, Ubuntu/Debian (BASH scripting a plus) + Experience with CI platforms (Jenkins, CircleCI, Travis, etc) + Experience with REST-based Web Service API implementation + Experience with MySQL/PostgreSQL (or similar) and understanding of how they work internally + Experience with Algorithms and Data Structures + Experience with NoSQL databases is desirable (i.e MongoDB, Cassandra) + Experience with memory cache systems (Redis, Memcached) + Experience with other systems programming languages is a bonus (Go, C/C++, + Rust, etc), and/or scripting languages (Python) and/or JVM-based languages (Scala, Java, Groovy) + Experience with pure functional programming and/or functional programming + libraries and concepts is a bonus (Haskell, Scala, F#, Ramda, Lo-Dash FP etc) + Strong experience in designing and implementing highly horizontally-scalable architecture ## Description We are looking for a Back End focused engineer to be a pivotal member of our engineering team. You will be working closely with product managers and developers who like to use lots of interesting technologies to develop core features used across the WhereTo platform. A great fit for this role is someone who is always intrigued by new technology, is constantly finding better ways to write beautiful, shareable, scalable and solid code, is comfortable working in a fast paced remote environment, and is a team player. What You'll Do + Responsible for creating high quality user-focused software while working in a fast-moving domain team. + Help define, implement and reinforce architectural + implementation best practices + Assist Team Lead in facilitating technical planning for team's projects. + Assist Team Lead in communicating progress, roadblocks, concerns, and + successes to engineering management. + May be required to organize and lead meetings with external stakeholders as needed. + Provide technical guidance to more junior engineers + Assist Team Lead in code review for your team. + Help your team members debug issues and solve complex tasks. + Provide mentorship to junior engineers. + Assist in onboarding process for your team. + You will live and breathe asynchronous I/O, Typed JavaScript and horizontal scalability. + Help cultivate a safe, inclusive, and accessible work environment for team members of all backgrounds including people who are racialized, have disabilities (invisible or visible), require faith accommodations, and/or are LGBTQ2+ + Help to foster an inclusive and accessible team environment for all Flighties, regardless of their identities and cultural backgrounds ## Related Videos - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [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) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [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) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)