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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Back End Developer - €30.000 - €50.000 A Year - **Company:** Spoki - **Location:** Madrid, Spain - **Salary:** €30,000.0 - €50,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Code Generation, Code Review, Continuous Integration, Software Debugging, DevOps, Distributed Systems, Github, OAuth, Query Optimization, Prometheus, Data Logging, GitHub Copilot, Delivery Pipeline, Concurrency, Caching, AWS Lambda, Backend, Cloudformation, Amazon Relational Database Service, Pytest, AWS Fargate, Front End Software Development, Api Gateway, Restful APIs, Terraform, Code Restructuring - **Published:** July 28, 2026 - **Apply:** https://www.buscojobs.com.es/back-end-developer-%E2%82%AC-30-000-%E2%82%AC-50-000-a-year-en-madrid-ID-364756815 ## About the Role Applyinfrastructure-as-codepractices (Terraform, CloudFormation). Monitor, log, and troubleshoot distributed systems in production environments.AI-Driven Development (Vibe Coding):Work closely with AI coding assistants to generate, refactor, and maintain production-ready code - with at least75% of development AI-assisted.Focus onarchitecture, orchestration, and reviewrather than manual coding.Design effective prompts, validate AI-generated code, and ensure compliance with performance and security standards.Help evolve our internal"Vibe Coding" workflows and best practices for human-AI collaboration.Collaboration & Quality:Collaborate cross-functionally with frontend developers, designers, and product owners.Participate in code reviews and architectural discussions.Write clean, maintainable, and well-tested code aligned with project goals.Must To HaveExperience:3+ years in backend development with production-grade systems.Languages:Strong proficiency inPythonandDjango, with working knowledge ofGolang.Databases:Experience withPostgreSQL, query optimization, and migrations.APIs:Proven experience designing and consuming RESTful APIs.Cloud:Solid understanding ofAWS services(EC2, Lambda, RDS, S3, etc.). DevOps:Experience withDocker, CI/CD, and infrastructure automation.Testing:Familiarity with testing frameworks (PyTest, unittest). Collaboration:Strong communication and teamwork in Agile environments.Nice to HaveAI & Automation Tools:Experience usingCursor,Windsurf,GitHub Copilot, or other AI-assisted development tools.Prompt Engineering:Ability to craft effective prompts for AI code generation, debugging, and optimization.Cloud-Native Mindset:Experience withserverless architectures(AWS Lambda, Fargate) andTerraform.Performance Optimization:Understanding of concurrency, async processing, caching, and load balancing.Security Awareness:Knowledge of OAuth2, JWT, and best practices for secure API design.Monitoring & Logging:Experience withGrafana,Prometheus, orAWS CloudWatch.Open Source:Contributions or side projects showcasing backend, AI, or automation expertise.Multilingual Environment:Comfortable working in an international, English-first team with async communication.Work Policy for BarcelonaThis is a on site position based at the Aticco Bogatell coworking space in Barcelona.Employees working from the Barcelona ## Description Backend DeveloperDescubra si esta oportunidad es adecuada para usted leyendo toda la información que sigue a continuación.Company:SpokiLocation:Barcelona, SpainWe require on-site presence at our San Vito dei Normanni (BR) office one week 4 times / yearSalary Range:€30,000 - €50,000About UsSpoki is a Conversational Platform that helps companies build authentic relationships with their customers through WhatsApp and Artificial Intelligence.We believe in the value of genuine connections and provide tools that enable marketing, sales, and customer care teams to communicate in a direct, effective, and personal way.Our culture is built on four key principles: an unwavering passion for what we do, putting customer success first, working as a united and collaborative team, and approaching challenges with an entrepreneurial and results-driven mindset.Key ResponsibilitiesBackend Development:Design, build, and maintain scalable, high-performance APIs usingPythonandDjango.Contribute to backend services written inGolangwhere performance and concurrency are critical.Define and optimizePostgreSQLschemas, queries, and indexes for efficiency and scalability.Integrate with third-party APIs and external systems.Ensure robust authentication, authorization, and data protection mechanisms.Cloud Infrastructure & DevOps:Manage and optimizeAWSenvironments (EC2, Lambda, RDS, S3, API Gateway, ECS).Automate deployments usingCI/CD pipelines(GitHub Actions, AWS CodeBuild, or similar).Applyinfrastructure-as-codepractices (Terraform, CloudFormation).Monitor, log, and troubleshoot distributed systems in production environments.AI-Driven Development (Vibe Coding):Work closely with AI coding assistants to generate, refactor, and maintain production-ready code - with at least75% of development AI-assisted.Focus onarchitecture, orchestration, and reviewrather than manual coding.Design effective prompts, validate AI-generated code, and ensure compliance with performance and security standards.Help evolve our internal"Vibe Coding" workflows and best practices for human-AI collaboration.Collaboration & Quality:Collaborate cross-functionally with frontend developers, designers, and product owners.Participate in code reviews and architectural discussions.Write clean, maintainable, and well-tested code aligned with project goals.Must To HaveExperience:3+ years in backend development with production-grade systems.Languages:Strong proficiency inPythonandDjango, with working knowledge ofGolang.Databases:Experience withPostgreSQL, query optimization, and migrations.APIs:Proven experience designing and consuming RESTful APIs.Cloud:Solid understanding ofAWS services(EC2, Lambda, RDS, S3, etc.).DevOps:Experience withDocker, CI/CD, and infrastructure automation.Testing:Familiarity with testing frameworks (PyTest, unittest).Collaboration:Strong communication and teamwork in Agile environments.Nice to HaveAI & Automation Tools:Experience usingCursor,Windsurf,GitHub Copilot, or other AI-assisted development tools.Prompt Engineering:Ability to craft effective prompts for AI code generation, debugging, and optimization.Cloud-Native Mindset:Experience withserverless architectures(AWS Lambda, Fargate) andTerraform.Performance Optimization:Understanding of concurrency, async processing, caching, and load balancing.Security Awareness:Knowledge of OAuth2, JWT, and best practices for secure API design.Monitoring & Logging:Experience withGrafana,Prometheus, orAWS CloudWatch.Open Source:Contributions or side projects showcasing backend, AI, or automation expertise.Multilingual Environment:Comfortable working in an international, English-first team with async communication.Work Policy for BarcelonaThis is a on site position based at the Aticco Bogatell coworking space in Barcelona.Employees working from the Barcelona office must spend 1 full week at the San Vito dei Normanni (Italy) office every 3 months (i.E., at least 4 times per year).The travel schedule will be defined in agreement with the manager.Expenses: 100% of travel and accommodation expenses are reimbursed by Spoki.What we offerBe part of building a cutting-edge Conversational Commerce platform poised for global expansion.Competitive compensationWork with an international, passionate, supportive, and talented team dedicated to excellence.The latest Apple MacBook Pro and all necessary tools.Career Levels: continuous growth with clear key points to help you design your personal and professional development in the direction you desirePermanent, full-time contract.Regular team-building events and celebrations.xiphtebAccess to cutting-edge technologies and resources to stay at the forefront of engineering and innovation. ## Related Videos - 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