Cards. Payments. Capital | 24 countries and growing 🦁 🌎 🚀
Principal Backend Engineer
Location
Mexico
Posted
46 days ago
Salary
0
Seniority
Lead
Job Description
Principal Backend Engineer
Jeeves
• Design, build, and maintain scalable, reliable backend services that process financial transactions and serve Jeeves customers across 20+ countries. • Write clean, testable, production-quality code in Go, Python, or Node.js/TypeScript; participate actively in design and code reviews. • Build and consume RESTful and GraphQL APIs; design inter-service communication using gRPC, message queues, and event-driven architectures. • Design and optimize relational and non-relational database schemas (PostgreSQL, MongoDB, Redis) for correctness, performance, and scale. • Own backend features end-to-end — from scoping and technical design through deployment, monitoring, and iteration. • Implement security best practices: authentication, authorization, input validation, and data protection across distributed services. • Integrate LLM API calls (e.g., OpenAI, Anthropic) into backend services as product features — such as spend categorization, document parsing, or natural language workflows — ensuring those integrations are reliable, observable, and cost-efficient. • Build backend pipelines that consume AI-generated outputs safely: validate structured outputs, handle fallback scenarios, and design graceful degradation when AI services are unavailable or return low-confidence results. • Collaborate with AI and data science teams to integrate model outputs into backend APIs — bridging experimental AI work and production systems. • Use AI coding tools (GitHub Copilot, Claude, Cursor, etc.) fluently as part of your everyday development workflow. • Instrument services with structured logging, distributed tracing, and metrics for full operational visibility. • Participate in on-call rotation; respond to production incidents and contribute to post-incident reviews. • Contribute to CI/CD pipeline improvements, testing infrastructure, and deployment practices. • Work closely with engineering, product, compliance, and data teams across multiple time zones and regions — communicating in both English and Spanish or Portuguese as the situation requires. • Contribute to a globally distributed engineering culture through thorough documentation, async design reviews, and thoughtful pull request feedback. • Bring your regional perspective to product and engineering conversations — our LATAM customers have specific needs, and engineers who understand those markets make our product better.
Job Requirements
- 5+ years of professional backend engineering experience building and operating production systems.
- Fluent in English — professional fluency required for daily work with global teams in written and spoken contexts.
- Fluent in Spanish or Portuguese — required for collaboration with LATAM teammates, customers, and operational partners.
- Strong proficiency in at least one backend language: Go, Python, or Node.js/TypeScript.
- Experience designing and building RESTful APIs, microservices, and event-driven backend systems.
- Solid understanding of relational databases (PostgreSQL preferred): schema design, query optimization, and data modeling.
- Experience with cloud infrastructure (AWS, GCP, or Azure), containerization (Docker, Kubernetes), and CI/CD pipelines.
- Demonstrated ability to integrate third-party APIs reliably in production — including error handling, retry logic, and observability.
- Experience working on globally distributed teams across time zones and regions.
- Comfortable using AI tools as part of everyday engineering work — integrating LLM API outputs into backend services and using AI coding assistants fluently.
Benefits
- Health insurance
- Retirement plans
- Paid time off
- Flexible work arrangements
- Professional development
- Remote work options
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