Credit card has 5-10% penetration in Latin America and Southeast Asia. Our simple payment solution allows web3 games, creators and merchants to deploy payments on any platform, enable their users to pay with their preferred payment method in 100+ countries, and allow merchants to receive in stablecoins instantaneously from anywhere. We also enable game studios to spin up a wallet with email or social account log-in for their users, enabling anyone to engage with the web3 ecosystem with minimal hassle.

Join us in revolutionizing how businesses interact with data! We're building a cutting-edge platform that augments Business Intelligence with Agentic AI at a $400M/year revenue Vireo from our AI tech hub in Vietnam. Imagine a chat interface that doesn't just fetch data, but allows users to interact with structured information intuitively, receive deep-dive analyses, and get actionable business suggestions – all powered by intelligent agents. Our ultimate vision is to replace traditional Data Analysis and BI with a smarter, more proactive AI-driven solution. If you're passionate about building the future of data analytics, this is your opportunity.

Key Responsibilities

• Architect and Scale Core Systems: Lead the design, implementation, and optimization of highly scalable, fault-tolerant backend services and non-blocking APIs using Python (FastAPI) or Java (Vert.x, Quarkus). Ensure services handle high throughput with minimal latency.
• End-to-End Product Delivery: Drive the full lifecycle of product features—from requirements gathering and prototyping through testing, deployment, and iteration—working closely with product managers, UX designers, and DevOps.
• Champion Asynchronous Patterns: Build and maintain event-driven, asynchronous processing pipelines (e.g., message queues, pub/sub) to support real-time data ingestion, processing, and integrations.
• Performance & Reliability: Establish and enforce best practices for monitoring, observability, and automated testing. Identify bottlenecks and implement caching, connection pooling, backpressure, and rate-limiting strategies to sustain 99.9%+ uptime.
• Comprehensive Service Monitoring: Design, deploy, and maintain end-to-end observability solutions using Prometheus for metrics collection and Grafana for visualization and alerting.
• AI & RAG Applications: Architect Retrieval-Augmented Generation (RAG) solutions and intelligent agents that solve real-world problems—integrating vector stores, LLM APIs (e.g., OpenAI), and custom prompting frameworks.
• Mentorship & Collaboration: Provide technical leadership and mentorship to mid-level engineers, foster a culture of code quality, and collaborate across cross-functional teams to drive continuous improvement.

Required Qualifications

• 5+ years of software engineering experience, with a proven track record of building and operating production-grade, scalable applications.
• Expertise in Python & FastAPI or Java (Vert.x, Quarkus): Deep familiarity with asynchronous programming (async/await in Python or non-blocking event loops in Java), concurrency models, and profiling/tuning of services.
• API Design Mastery: Hands-on experience building RESTful, GraphQL, or gRPC APIs that support high request volumes; strong understanding of HTTP/2, WebSockets, and protocol optimizations.
• Cloud & Infrastructure: Proficient with AWS, GCP, or Azure; containerization with Docker; orchestration using Kubernetes/Helm; Infrastructure-as-Code (Terraform, CloudFormation).
• Data Storage & Caching: Solid background in relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis, DynamoDB) databases; designing data schemas for performance and scalability.
• Asynchronous Ecosystems: Experience with message brokers (Kafka, RabbitMQ, AWS SQS), task queues (Celery, AWS Lambda) or Java equivalents, and stream-processing frameworks.

Preferred Qualifications

• RAG & Agent Development: Practical experience implementing Retrieval-Augmented Generation pipelines, vector search (e.g., Pinecone, Weaviate), and building autonomous agents with LangChain or similar frameworks.
• AI/ML Collaboration: Familiarity with embedding-based search, prompt engineering, chaining, and orchestration of multi-LLM workflows.
• Observability & Security: Strong grasp of logging, tracing (OpenTelemetry), metrics (Prometheus/Grafana), and security best practices (OAuth2, JWT, encryption).
• Leadership & Communication: Excellent verbal and written English skills; demonstrated ability to influence technical direction and collaborate effectively across teams.

blockchain, web3, crypto, payments