> Markdown version of [/jobs/ext/2778178-senior-backend-engineer](https://www.wearedevelopers.com/jobs/ext/2778178-senior-backend-engineer). 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).

---

# Senior Backend Engineer

- **Company:** Jobtailor
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Amazon Web Services, Applicant Tracking Systems, Computing Platforms, Acceptance Test-Driven Development, Unit Testing, Code Generation, Code Review, Relational Databases, DevOps, Message Broker, Node.Js, RabbitMQ, Amazon Simple Notification Service (SNS), TypeScript, Google Cloud, Test-Driven Development (TDD), Backend, Integration Tests, Solid Principles, Apache Kafka, Graphql, Front End Software Development, Software Coding, Grpc
- **Published:** September 7, 2026
- **Apply:** https://www.buscojobs.com.es/senior-backend-engineer-en-barcelona-ID-370293069

## About the Role

5+ years of backend development experience
2+ years of experience with a strongly typed language or TypeScript
Strong experience with RDBMS, using raw queries or an ORM
Solid background in unit and integration testing
Experience with message brokers such as SNS, RabbitMQ, Kafka, or Google Pub/Sub
Bonus: Experience with Node.js, GraphQL, GCP or AWS, gRPC, and protobufs
Bonus: Strong grasp of SOLID principles
Core Competencies
Demonstrates extensive backend development experience with a focus on building scalable features and improving platform architecture.
Proficient in collaborating across teams to enhance user experience and deliver customer value through Agile methodologies.

## Description

Collaborate with frontend engineers, product managers, and DevOps/platform teams to build meaningful features through an Agile SDLC/Kanban workflowConduct peer code reviews and contribute to retrospectivesDefine technical requirements and identify effective solutions to meet team goalsParticipate in engineering retrospectives focused on testing, architecture, automation, and coding standardsImprove platform architecture and build robust, scalable featuresFocus on delivering customer value and improving user experienceCollaborate with the Backend Guild, Product, Platform, DevOps, and Frontend teamsContribute to quality, performance, and developer experience through clean architecture, code generation, linters, templates, and test-driven developmentRequirements5+ years of backend development experience2+ years of experience with a strongly typed language or TypeScriptStrong experience with RDBMS, using raw queries or an ORMSolid background in unit and integration testingExperience with message brokers such as SNS, RabbitMQ, Kafka, or Google Pub/SubBonus: Experience with Node.js, GraphQL, GCP or AWS, gRPC, and protobufsBonus: Strong grasp of SOLID principlesCore CompetenciesDemonstrates extensive backend development experience with a focus on building scalable features and improving platform architecture.Proficient in collaborating across teams to enhance user experience and deliver customer value through Agile methodologies.Highest-signal resume keywordsBackend Development ExperienceTypeScriptRDBMSUnit TestingMessage BrokersATS Optimization KeywordsHard SkillsBackend DevelopmentTypeScriptRDBMSUnit TestingIntegration TestingMessage BrokersSOLID PrinciplesCode ReviewsTest-Driven DevelopmentAgile SDLCSoft SkillsCollaborationProblem SolvingCommunicationIndustry KeywordsAgileKanbanArchitectureAutomationDeveloper ExperienceTools & TechnologiesNode.jsGraphQLGCPAWSGRPCProtobufsRabbitMQKafkaGoogle Pub/SubLinters#J-*****-Ljbffr


## Related Videos

- [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)
- [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library)
- [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform)
- [Exploring the Power of gRPC-Gateway for Writing RESTful Services](https://www.wearedevelopers.com/videos/2072-exploring-the-power-of-grpc-gateway-for-writing-restful-services)
- [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)
- [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio)

## Related Articles

- [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)
- [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)