Full-Time
Agentic AI Engineer
Updated on 8/23/2026
MANGO
1-10 employees
White-label payment platform with API integration
No salary listed
Palau-solità i Plegamans, Spain
Hybrid
Work is hybrid, with telework available 50% of the time. Free company transportation is available from Barcelona and El Vallès.
Bachelor's
 Software Engineering (1) |
|---|
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- A degree in Computer Engineering or a similar field is required.
- At least 3 years of backend development experience with Python are required.
- Experience with FastAPI and asynchronous Python programming is required.
- Experience or demonstrated strong interest in large language models, generative artificial intelligence, or natural language processing is required.
- Experience integrating external APIs and third-party systems is required.
- Experience with cloud platforms is required; Google Cloud Platform is preferred, with AWS or Azure also valued.
- Knowledge of security applied to artificial intelligence systems, including prompt injection, data leakage, and data privacy under GDPR and CCPA, is required.
- Design and develop conversational agents using generative artificial intelligence and multi-agent architectures.
- Build and maintain the assistant backend in Python with FastAPI 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 with channels including mango.com, the Mango app, WhatsApp, Instagram, and telephone.
- Collaborate with computational linguists on prompt strategy, guardrails, and evaluations that ensure reliable responses aligned with the Mango brand.
- Implement and maintain observability and large language model evaluation pipelines to measure and improve response quality.
- Apply security and privacy best practices in assistant development, including detecting and masking personally identifiable information in conversations, securely managing secrets, and complying with GDPR.
- Experience with agentic architectures and tools such as LangGraph, LangChain, CrewAI, and MCP.
- Experience with virtual or conversational assistants.
- Knowledge of natural language understanding, natural language processing, and language-model evaluation.
- Experience with large language model observability tools such as Langfuse, LangSmith, or similar tools.
- Experience with personally identifiable information detection and masking tools or data loss prevention tools such as Google Cloud DLP.
- A high level of English proficiency.
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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Simplify's Take
What believers are saying
- July 2026 funding lifted total capital to $6 million for expansion.
- Mango reported 762% annual growth and over $16 million in transactions.
- Management plans four new products, 44% headcount growth, and Latin America expansion.
What critics are saying
- Construction defaults turn Mango’s underwriting model into losses as Mexico projects stall.
- CEMEX, Autodesk-backed Brick & Mortar now bankrolls Mango’s competitors in construction fintech.
- If deferred-payment adoption slows, Mango’s first-mover data advantage evaporates by 2027.
What makes MANGO unique
- Mango is building Mexico’s first construction credit bureau from payments, purchases, and project progress.
- Brick & Mortar Ventures led its July 2026 seed+ round with Ironspring participation.
- It already serves 230-plus distributors and contractors across Mexico, anchoring proprietary underwriting data.
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Benefits
Health Insurance
Childcare Support
Training Programs
Mentorship Program
Professional Development Budget
Employee Discounts
Company News
Mexican fintech Mango has secured a $3m funding round led by Ironspring Ventures to address cash flow issues in Latin America's construction industry. The funding will help Mango expand its credit and payments infrastructure, grow its contractor and supplier network, and enhance its internal teams. BBVA Spark also provided a credit facility. Mango's platform offers embedded credit and real-time risk intelligence to streamline procurement workflows and mitigate payment delays in construction.