Senior Backend Engineer

Join Jeeves, a fast-growing financial platform, as a Senior Backend Engineer. In this role, you will design and build the backend systems that power our platform, working across payments, cards, spend management, and compliance infrastructure. You will write clean, testable code, build and consume APIs, optimize database schemas, and implement security best practices. You will also integrate AI-powered features into production backend systems and collaborate with AI and data science teams. This is a remote position with flexible work options and comprehensive benefits.

Design, build, and maintain scalable, reliable backend services that process financial transactions and serve Jeeves customers across 20+ countries.

Responsibilities

• Integrate LLM API calls (e.g., OpenAI, Anthropic) into backend services as product features — such as spend categorization, document parsing, or natural language workflows.
• Collaborate with AI and data science teams to integrate model outputs into backend APIs — bridging experimental AI work and production systems.

Requirements

• 5+ years of professional backend engineering experience building and operating production systems
• Comfortable using AI tools as part of everyday engineering work — integrating LLM API outputs into backend services and using AI coding assistants fluently
• Fluent in English — professional fluency required for daily work with global teams in written and spoken contexts
• Experience working on globally distributed teams across time zones and regions
• 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 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
• Strong proficiency in at least one backend language: Go, Python, or Node.js/TypeScript
• Global work experience — prior roles at companies operating across multiple countries and regulatory environments
• Experience with multi-currency systems or cross-border payment processing

Preferred

• Familiarity with message queue systems (Kafka, RabbitMQ) and event-driven architecture
• Prior experience at a startup or high-growth scale-up, comfortable building in ambiguity without heavy process support
• Fluent in Spanish or Portuguese — preferred for collaboration with LATAM teammates, customers, and operational partners
• Experience in fintech, financial services, payments, or a regulated industry — familiarity with ledger systems, payment rails, or financial compliance (KYC/AML, PCI-DSS) is a strong plus