API Orchestration Engineer - AI-Driven Fintech Backend

iSoftStone; Shah Alam; On-site; MYR 286,000 - 398,000; Full time

Job summary

iSoftStone seeks a hands-on Software Engineer based in Singapore to drive API integration, smart routing, and AI-powered orchestration across banks, exchanges, PSPs, and external financial platforms.

Role focuses on scalable API connectivity, intelligent routing services, and AI-driven operational capabilities to support high-volume financial flows. Strong backend and AI exposure required, with cross-functional collaboration in a fast-paced fintech environment.

Qualifications

• 3-5 years of software engineering or backend development experience.
• Strong experience with REST APIs, JSON, Webhook integrations, API troubleshooting, Distributed systems integration.
• Experience with Java/Spring Boot, Node.js, Python, or similar backend technologies.
• Familiarity with API authentication and security mechanisms including OAuth2, JWT, API keys, HMAC / RSA signatures.
• Good understanding of API gateway, routing, orchestration, or middleware concepts.
• Familiarity with SQL databases, logging and monitoring tools.
• Strong analytical and problem-solving skills.
• Able to work independently and operate effectively in a fast-paced environment.

Responsibilities

• Design, develop, and maintain integration with external financial and operational platforms.
• Build reusable API connector frameworks and middleware components for scalable partner onboarding.
• Develop and maintain RESTful APIs, webhook handlers, callback processing, and integration services.
• Implement secure API authentication and communication mechanisms including OAuth2, JWT, HMAC, and RSA signature verification.
• Develop intelligent routing capabilities for payment and fund movement across multiple channels.
• Build routing and orchestration logic based on API health, latency, success rate, cost optimization, liquidity availability, and constraints.
• Implement retry, failover, fallback, and resiliency mechanisms across partner channels.
• Support workflow automation and operational efficiency initiatives.
• Support development of AI-powered operational and engineering capabilities.
• Build or integrate AI-driven workflows for API monitoring, intelligent alerting, operational automation, smart channel recommendation, failure analysis, knowledge assistance.
• Participate in Generative AI and Agentic AI related initiatives including LLM integrations, AI workflow automation, AI-assisted operations, AI agent frameworks, AI tool integrations.
• Collaborate with infrastructure and engineering teams to explore AI-driven productivity and operational improvements.

Skills

REST APIs

JSON

Webhook integrations

API troubleshooting

Distributed systems

Java/Spring Boot

Node.js

Python

OAuth2

JWT

HMAC

RSA signatures

API gateway

Routing

Orchestration

SQL databases

Logging/Monitoring

Kubernetes

AWS

Tools

Kubernetes

AWS

Job description

iSoftStone seeks a hands-on Software Engineer based in Singapore to drive API integration, smart routing, and AI-powered orchestration across banks, exchanges, PSPs, and external financial platforms.

Role focuses on scalable API connectivity, intelligent routing services, and AI-driven operational capabilities to support high-volume financial flows. Strong backend and AI exposure required, with cross-functional collaboration in a fast-paced fintech environment.