Senior Software Engineer, Cross-Border Payment Systems

Tencent; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Tencent in Singapore is seeking a Senior Software Engineer to own the bank integration layer of a high-scale payments network. You will architect global connectivity and drive AI-driven engineering into core workflows.

Requirements include 5+ years in high-throughput banking/payments with ISO 20022/SWIFT, expert Java & Spring Boot, and a security-first approach (OAuth2, Mutual TLS, digital signatures). You will mentor peers and lead cross-border engineering initiatives.

Qualifications

• 5+ years in high-throughput banking/payments with ISO 20022/SWIFT knowledge and FX lifecycle understanding.
• Strong Java & Spring Boot with a focus on concurrency and distributed systems (Kafka, RocketMQ, MySQL optimization).
• Security: OAuth2, Mutual TLS, and digital signatures, with a "compliant by design" mindset.
• AI-forward mindset: willingness to apply AI Agents to improve the SDLC.

Responsibilities

• Architect global connectivity: lead end-to-end design of high-availability integration gateways combining diverse banking protocols into a scalable global network
• Engineer resilience: drive 99.99% availability through idempotency, circuit breakers, and state machines to avoid duplicate transactions
• Innovate with AI: lead adoption of AI-powered tools and autonomous agents to accelerate development, testing, and reliability
• Security & integrity: own security handshake architecture protecting global transactions
• Technical leadership: set engineering standards, mentor juniors, and guide cross-border engineering culture

Skills

Java

Spring Boot

Concurrency

Distributed systems

ISO 20022 / SWIFT

Kafka

RocketMQ

MySQL optimization

OAuth2

Mutual TLS

Tools

Kafka

RocketMQ

MySQL optimization

Job description

Join our core R&D platform to architect the future of global value movement. As a Senior Software Engineer, you won't just write code—you will own the bank integration layer of a high-scale payment network. You will be a technical \"force multiplier,\" leading the charge in integrating AI-driven engineering (Agents and LLMs) into our core workflows.

Key Responsibilitie

• Architect Global Connectivity: Lead the end-to-end design of high-availability integration gateways, standardizing diverse banking protocols into a unified, scalable global network
• Engineer Resilience: Drive 99.99% system availability by implementing advanced distributed patterns (Idempotency, Circuit Breakers, State Machines) to ensure zero-duplicate transaction processing at massive scale
• Innovate with AI: Spearhead the adoption of AI-powered tools and autonomous agents to step-change our development velocity, automated testing, and operational reliability
• Security & Integrity: Own the mission-critical security handshake architecture that protects the financial integrity of every global transaction
• Technical Leadership: Set the bar for engineering excellence through rigorous design reviews, mentoring junior talent, and evolving our cross-border engineering culture

Job Requiremen

• Fintech Master y: 5+ years in high-throughput banking/payments. Deep knowledge o f ISO 20022/SWI FT and the technical orchestration o f FX lifecycl es (Locked-in vs. Real-time rates
• Technical Dept h: Expert-leve l Java & Spring B o ot proficiency with a focus on concurrency and distributed systems (Kafka, RocketMQ, MySQL optimization
• Security Expertise: Proven experience with \"compliant by design\" architecture, including OAuth2, Mutual TLS, and digital signature
• AI-Forward Mindset: A proactive interest in utilizing AI Agents to optimize the software development lifecycle (SDLC