### **Description** Would you like to work as a Backend Developer? If so, congratulations! You’ve come to the right place. **WHAT ARE WE LOOKING FOR?** 5+ years of backend development experience and 3+ years working with AWS (serverless focus preferred). Solid experience with AWS Lambda, API Gateway, EventBridge, and AWS IAM. Infrastructure-as-Code (IaC) using AWS CDK (or Terraform) and CI/CD pipelines. Data modeling and access in MongoDB (or another NoSQL database), plus knowledge of data integrity and auditing patterns. REST API design (OpenAPI), versioning, change control, and backward compatibility. Observability (logs, metrics, traces), error handling, and resilient system design. Proficiency in at least one modern backend language (Node.js/TypeScript, Java, or Python). **WHAT DO WE OFFER?** Permanent contract from day one. Professional training from day one, enabling clearer career development. Flexible compensation plan. Enjoy flexible working hours, intensive workdays during July and August, and every Friday throughout the year — plus 22 vacation days, your birthday off, and December 24th and 31st. **WHO ARE WE?** Izertis, with 29 years of experience, listed on the Spanish Continuous Market (BME) and ranked among the top 1,000 fastest-growing companies across Europe, offers you the opportunity to develop your professional career alongside more than 2,300 employees across offices in Europe, the Americas, and Africa — with a presence in over 50 countries where we deliver services and projects through our extensive portfolio of solutions, including: AI, Data & Intelligence, Digital Experience, DevOps, Cloud, Cyber Security, Smart Software Labs, Quality Assurance, Hyper Automation, IT Sourcing, Business Solutions, Blockchain, Project & IT Governance Consulting, and other technologies enabling digital transformation. Lead your professional development and join the challenge Izertis offers you. We look forward to welcoming you! Location**Valencia** Category**Information Technology and Telecommunications** Subcategory**Programming** Sector**Computer Equipment** Working Hours**Full-time** Work Modality**Not specified** Professional Level**Employee** Department**Information Technology