Senior Software Engineer, Cross-Border Payment Systems

re-zoo-me; Singapore; Hybrid; SGD 120,000 - 180,000; Full time

Job summary

Tencent's Corporate Development Group seeks a Senior Software Engineer to own the bank integration layer of a high-scale payment network. Lead AI-enabled enhancements and secure cross-border transaction flows.

You will architect global gateways, push for 99.99% availability, and mentor engineers while advancing AI-driven development practices within a fintech context.

Qualifications

• 5+ years in high-throughput banking/payments with ISO 20022/SWIFT knowledge.
• Expert-level Java & Spring Boot with concurrency and distributed systems (Kafka, RocketMQ, MySQL optimization).
• Security architecture experience including OAuth2, Mutual TLS, and digital signatures.
• Proactive interest in using AI Agents to optimize the SDLC and tooling.

Responsibilities

• Architect global connectivity by designing high-availability banking gateways.
• Ensure 99.99% availability using idempotency, circuit breakers and state machines.
• Lead AI-enabled tooling to boost development velocity, testing, and reliability.
• Own the security handshake architecture protecting global transactions.
• Provide technical leadership, design reviews, and mentoring across cross-border teams.

Skills

Fintech mastery

Java & Spring Boot

Security architecture

AI in SDLC

Tools

Kafka

RocketMQ

MySQL

Job description

Business Unit

Corporate Development Group (CDG) as the platform for the company's new business incubation and new business exploration, CDG is responsible for promoting development and innovation for important areas such as financial technology and advertising, as well as marketing services, including payment and financial applications. As a professional support platform, CDG also supports the company and various business groups in strategic planning, investments and mergers, investor relations and corporate global communications, marketing and public relations, and more.

What The Role Entails

Position Overview

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.

• 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.

Who We Look For

• Fintech Mastery: 5+ years in high-throughput banking/payments. Deep knowledge of ISO 20022/SWIFT and the technical orchestration of FX lifecycles (Locked-in vs. Real-time rates).
• Technical Depth: Expert-level Java & Spring Boot 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 signatures.
• AI-Forward Mindset: A proactive interest in utilizing AI Agents to optimize the software development lifecycle (SDLC).

Equal Employment Opportunity at Tencent

As an equal opportunity employer, we firmly believe that diverse voices fuel our innovation and allow us to better serve our users and the community. We foster an environment where every employee of Tencent feels supported and inspired to achieve individual and common goals.