**About us:** We are a technology company specialized in financial APIs that connect with multiple banking institutions internationally. We work with advanced AI tools and have a strong focus on automation and code quality. **What we’re looking for:** A backend developer with at least 2 years of experience to join our technical team at our office in Alcorcón (Madrid). We seek an extremely organized individual who shares our passion for clean code and processes. **Mandatory technical requirements:** \* Advanced PHP: Solid backend development experience. \* MySQL: Design and optimization of complex databases. \* REST APIs: Development, integration, and documentation. \* Authentication systems: OAuth, tokens, RSA encryption. \* Financial data handling: Experience with IBAN, transactions, multiple currencies. \* Data formats: JSON, XML, CSV, PDF. \* Version control: Advanced Git. \* Testing: PHPUnit, mocks, debugging. **Additional requirements:** \* Fluent English and Spanish (mandatory). \* Exceptional organization: Detailed documentation, structured processes. \* Experience with AI/automation: Code generation tools, automated testing. \* Financial knowledge: Understanding of banking products (accounts, cards, loans, portfolios). \* Ability to attend our office in Alcorcón (Madrid) in person. **What you’ll work on:** \* Development and maintenance of our multi\-institution financial API. \* Integration with international banking APIs. \* Implementation of caching systems and optimization. \* Development of connectors for new financial institutions. \* Handling tokenization and security systems. \* Automation of testing and deployment processes. \* Working with AI tools to improve code quality. **Technologies we use:** \* Backend: PHP 8\+, MySQL 8\. \* Integrations: cURL, OpenSSL, multiple data formats. \* Tools: Composer, PHPUnit, Adminer. \* Processing: PDF parsing, Excel/CSV processing, QR generation. \* Security: RSA encryption, tokenization, 2FA. \* Monitoring: Advanced logging, debugging tools. **What we especially value:** \* Extreme organization: Clean code, exhaustive documentation. \* Automation mindset: Always seeking efficiency. \* AI experience: Using tools to enhance productivity. \* Attention to detail: The financial sector demands absolute precision. \* Learning ability: Technologies are constantly evolving. **What we offer:** \* Salary: €18,000–€60,000 gross annually, depending on experience. \* On\-site work at our offices. \* Location: Valencia. \* Continuous training: In new technologies and AI tools. \* Technical environment: A team focused on technical excellence. \* Challenging projects: Working with complex APIs and financial data. \* Professional growth: Opportunities to specialize in fintech. Selection process: \* Technical interview: Review of experience and knowledge. \* Practical test: Development of a small API integration. \* Final interview: Assessment of organization and cultural fit. Are you interested in joining a team that combines financial technology with AI and automation? Send your CV detailing your PHP experience, API work, and projects demonstrating your organizational skills. Job type: Full\-time, Permanent contract Salary: €18,000.00–€60,000.00 per year Application questions: * How many years have you worked with PHP? Language: * English (Mandatory) Work location: On\-site employment