M

MANGO

White-label payment platform with API integration

Agentic AI Engineer

AI Application Engineering +1Confirmed live in the last 24 hours
Full-timePalau-solità i Plegamans, SpainNo salary listed

About the Job

Requirements

  • A qualification in Computer Engineering or a similar field.
  • At least 3 years of backend development experience with Python.
  • Experience with FastAPI and asynchronous programming in Python.
  • Experience or demonstrated strong interest in large language models, generative AI, or natural language processing.
  • Experience integrating external APIs and third-party systems.
  • Cloud experience; Google Cloud Platform is preferred, while Amazon Web Services or Microsoft Azure are also valued.
  • Knowledge of security applied to AI systems, including prompt injection, data leakage, and data privacy under GDPR or CCPA.
  • Organized, proactive, customer-oriented, and able to work as part of a team.

Responsibilities

  • Design and develop conversational AI agents using generative AI and multi-agent architectures.
  • Build and maintain the assistant backend in Python with FastAPI, deployed on Google Cloud Platform using Kubernetes, Pub/Sub, Secret Manager, and Vertex AI.
  • Integrate the assistant with external systems such as Salesforce and Mango APIs, and channels including mango.com, the Mango app, WhatsApp, Instagram, and telephone.
  • Collaborate with computational linguists on prompt strategy, guardrails, and evaluations to ensure reliable responses aligned with the Mango brand.
  • Implement and maintain LLM observability and evaluation pipelines to measure and improve response quality.
  • Apply security and privacy best practices to assistant development, including detecting and masking PII in conversations, securely managing secrets, and complying with GDPR.

Desired Qualifications

  • Experience with agentic architectures and frameworks such as LangGraph, LangChain, CrewAI, or MCP.
  • Experience with virtual or conversational assistants.
  • Knowledge of natural language understanding, natural language processing, and language-model evaluation.
  • Experience with LLM observability tools such as Langfuse, LangSmith, or similar.
  • Experience with PII detection and masking or data loss prevention tools, such as Google Cloud DLP.
  • High level of English.

About the Company

MANGO

White-label payment platform with API integration

Mango provides a white-label payment platform in Latin America that lets merchants accept and process payments while keeping their own brand. Its core products are API-driven payment solutions that integrate into merchants’ systems, enabling features like chargeback reduction, enhanced customer credibility, and independent promotions management. The platform operates mainly on transaction fees and API subscription revenues. Mango differentiates itself by offering a brand-preserving, API-first payment stack tailored to Latin American businesses and by supporting merchants with tools to manage branding and promotions under their own name rather than under Mango’s brand. The company aims to simplify payments for a wide range of clients—from small businesses to large enterprises—while contributing a portion of profits to environmental conservation efforts, specifically protecting the missionary jungle and wildlife.

Company size
1-10
Company stage
Seed
Total funding
$150K
Headquarters
Argentina
Founded
2013

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