Junior AI Engineer (Temporary position -Maternity leave)

Confirmed live in the last 24 hours

Payoneer

Herzliya, Tel Aviv District, Israel

Hybrid

Posted March 18, 2026

Job Description

About Payoneer

Founded in 2005, Payoneer is the global financial platform that removes friction from doing business across borders, with a mission to connect the world’s underserved businesses to a rising global economy. We’re a community with over 2,500 colleagues all over the world, working to serve customers, and partners in over 190 countries and territories.

By taking the complexity out of the financial workflows–including everything from global payments and compliance to multi-currency and workforce management, to providing working capital and business intelligence–we give businesses the tools they need to work efficiently worldwide and grow with confidence.

Location - Herzliya

Hybrid

Full-time

Role summary

We’re building a new AI capability that will be embedded across Payoneer’s products and internal operations.

Our mission is to create reusable, production-grade Multi AI agents System that can understand context, connect to Payoneer’s data and business logic through secure tools/APIs.

This is not a single feature or a one-off chatbot. It’s a long-term engineering effort to design and deliver a scalable multi-agent system that can support many use cases across channels.

You’ll work on agents, tooling, orchestration, observability, evaluation, and safe deployment patterns.

What you’ll do

Build backend services in Node.js (TypeScript) to run and serve agents across multiple products and channels.
Implement agent workflows: routing, orchestration, tool calling, and synthesizing results into UI/API-ready outputs.
Build and maintain high-quality Tools agents consume: secure internal API connectors, data fetchers, business logic wrappers, and knowledge retrieval.
Add observability: tracing, logging, prompt/model versioning, token/cost tracking, and quality metrics.
Create evaluation harnesses: regression checks, and feedback loops to continuously improve accuracy and reliability.
Collaborate with Product/Operations/Security

Who you are

3 years of hands-on Node.js + TypeScript experience
BS Degree in computer science
Experience building backend services (preferably NestJS)
Strong fundamentals: REST APIs, async patterns, debugging, performance considerations
Experience working with data sources (SQL and NoSQL)
Experience with distributed systems: caching (Redis), queues (Kafka/RabbitMQ), containers/K8s
Strong knowledge in CI/CD + feature flags + environment separation (dev/test/prod)
Strong learning ability - fast to pick up new domains, tools, and patterns, and comfortable working in ambiguity
High ownership and strong work ethic - motivated, proactive, and willing to work hard to deliver high-impact outcomes
Team player with clear communication skills and a practical, solution-oriented mindset
LLM/agent experience (OpenAI/Azure OpenAI, LangChain/LangGraph, function/tool calling) - Nice to have
Observability tools (Langfuse, OpenTelemetry, Grafana/Datadog, etc.) - Nice to have