Backend DeveloperWork Modality:Barcelona - Hybrid (3 days per week on-site)Schedule:Full-timeContract type:IndefiniteBrief DescriptionWe are looking for aBackend Developerto join our team and contribute to the development of our next-generation project repository. If you are passionate about scalable architectures, cloud services, and high-performance backend solutions, this is an opportunity to work on cutting-edge technology in the blockchain and fintech space.Key ResponsibilitiesBackend Development:Design, develop, and maintain backend services and APIs usingNode.Js, TypeScript, andserverless frameworks .Integration with AWS Services:Implement integrations with AWS services such asSNS, SQS, API Gateway, andLambda functions .Database Management:Manage and optimizePostgreSQLdatabases usingSequelize ORMandSequelize TypeScript .Performance Optimization:Identify and resolve performance bottlenecks, implement caching mechanisms, and ensureoptimal response timesfor backend services.Serverless Deployment:Deploy and manage serverless applications usingServerless Frameworkandesbuildfor efficient bundling.DevOps & Tooling:Work withCI/CD pipelines, automate infrastructure provisioning, and ensure effectivemonitoring and loggingof backend systems.Testing & Quality Assurance:Writeunit tests, integration tests, and participate incode reviewsto maintain high code quality and reliability.Documentation & Collaboration:Contribute totechnical documentation, mentor junior developers, and collaborate closely withfrontend and cross-functional teams .RequirementsBachelor’s or Master’s degree inComputer Science, Engineering, or a related field.2+ yearsof experience as aBackend Developer .Strong knowledge ofNode.Js, TypeScript,



and modern backend technologies.Proficiency inPostgreSQLandSequelize ORM with TypeScript .Familiarity withserverless architecturesand deployments usingServerless Framework .Strong understanding ofdesign patterns, SOLID principles, and backend development best practices.Excellentproblem-solving skillsand ability to work in afast-paced, collaborative environment .Intermediate English level .Bonus PointsAWS certification(e.G., AWS Certified Developer - Associate).Experience inbuilding and maintaining scalable and distributed systems .Knowledge ofevent-driven architecturesusing AWSSNS, SQS, andevent sourcing patterns .Contributions toopen-source projectsor active participation indeveloper communities .If you are looking for a challenge in backend development, working withscalable, high-performance architectures, andcloud-native technologies, we would like to hear from you.AI and Blockchainknowledge or interest.Soft SkillsProblem SolvingTeamwork & CollaborationCommunication SkillsAdaptability & Continuous LearningMentoring & Knowledge SharingCompany BenefitsHybrid work model and flexible hours.Worldwide telework for 4 weeks per year.Health coverageCompensation and benefits packageBirthday day offWellness programsWhy Brickken?Rebuilding at Its Core: Innovation alone is not enough to describe our daily tasks, as we aim to be better than we were yesterday. We have the ability to question and enhance our work continuously.Global Impact: Your work will cross borders and transform the vision of the fintech landscape on a general scale.Growth and Learning: We foster an environment of continuous learning and personal development.Teambuilding: Being united is the most important thing for us, which is why we organize internal workshops.Startup Environment & Collaborative Culture: You'll be part of a dynamic international team ( +10 nationalities) that values creativity, diversity, and inclusivity.#J-18808-Ljbffr

📌 Backend Developer (Madrid)
🏢 Brickken
📍 Madrid