Backend Engineer
Sax Ai
Chiva, Spain
2 days ago
Role details
Contract type
Permanent contract Employment type
Full-time (> 32 hours) Working hours
Regular working hours Languages
English Experience level
IntermediateJob location
Chiva, Spain
Tech stack
API
Artificial Intelligence
Amazon Web Services (AWS)
Software Quality
Software Debugging
DevOps
Django
Python
PostgreSQL
Software Architecture
Redis
Large Language Models
Backend
Information Technology
Celery
Terraform
Docker
Job description
- Build and optimize AI agents for compliance workflows using Python and LLMs
- Integrate with external data providers and with banks' internal systems
- Architect async task pipelines for complex, long-running compliance checks
- Develop APIs for the front-end application
- Contribute to architectural decisions that enhance system performance and reliability
- Write clean, maintainable, strictly-typed code that meets enterprise security and compliance standards
Tech Stack
- Python with mypy, Django, Celery
- PostgreSQL with pgvector, Redis
- AWS, Docker
- LLMs: Claude, Gemini
Requirements
- 3+ years building backend systems in Python
- Strong software design and architecture, and domain modeling
- Experience designing APIs and with async/background job processing patterns
- Strong problem-solving abilities and systematic debugging approach
- Care about code quality, testing, and maintainability
- Bachelor's degree in Computer Science, Engineering or related field
Nice to Have
- Experience building enterprise SaaS applications
- DevOps experience: Terraform, AWS, infrastructure-as-code, CI/CD pipelines
- Financial services, KYC/AML, or regulatory compliance domain knowledge
- Experience with agentic AI systems, document processing/OCR pipelines
Benefits & conditions
- Build AI agents that automate days of analyst work into minutes, in a high-stakes financial domain
- Work directly with investment banks on real compliance workflows
- Shape the architecture of a complex AI system in a fast-growing startup with enterprise clients
- A competitive salary with generous Stock Options
full_time
Organization Sax AI