Summary: Seeking a Backend Developer with expertise in Python, Django, and Golang to design, build, and maintain scalable APIs, optimize cloud infrastructure, and actively engage in AI-assisted development. Highlights: 1. Design, build, and maintain scalable, high-performance APIs 2. Actively collaborate with AI coding assistants for development 3. Manage and optimize AWS environments with CI/CD and IaC DESCRIPTION #### **At** **Kenos Technology** **we are looking for a** **Backend Developer** **with over** **3 years of experience****,** **advanced knowledge of Python, Django, and Golang****, and a strong enthusiasm for** **AI\-assisted development.** **This is an on\-site position in** **Barcelona.** #### **Responsibilities:** Backend Development * Design, build, and maintain scalable, high\-performance APIs using Python and Django * Contribute to backend services written in Golang where performance and concurrency are critical * Define and optimize PostgreSQL schemas, 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 optimize AWS environments (EC2, Lambda, RDS, S3, API Gateway, ECS) * Automate deployments using CI/CD pipelines (GitHub Actions, AWS CodeBuild, or similar) * Apply infrastructure\-as\-code practices (Terraform, CloudFormation) * Monitor, log, and troubleshoot distributed systems in production environments AI\-Driven Development * Actively collaborate with AI coding assistants (Cursor, Windsurf, Copilot) to generate, refactor, and maintain production\-quality code — aiming for at least 75% of development to be AI\-assisted * Design effective prompts, review AI outputs, and ensure generated code meets performance, scalability, and maintainability standards * Focus on architecture, orchestration, and refinement of AI\-generated code * Continuously evolve internal 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 REQUIREMENTS #### **Requirements** * 3\+ years of experience in backend development with production\-ready applications * Languages: Strong proficiency in Python and Django, with working knowledge of Golang * Databases: Solid experience with PostgreSQL, query optimization, and migrations * APIs: Proven experience designing and consuming RESTful APIs * Cloud: Familiarity with AWS services (EC2, Lambda, RDS, S3, etc.) * DevOps: Experience with Docker, CI/CD pipelines, and infrastructure automation * Testing: Knowledge of testing frameworks (PyTest, unittest) * Collaboration: Proficient with Git and agile development practices * Languages: Fluent in English (C1 required). Italian is a plus If you meet the requirements and are interested in joining our team, we look forward to receiving your application!