Senior Backend Developer (Golang & NodeJS)

About Us

Live Payments is one of Australia's leading payment service providers, servicing thousands of businesses across Australia. We continue to innovate our payment solutions and expand our product offering alongside our industry leading strategic partners, including Qantas Loyalty and Prospa.

Live Payments is seeking an experienced Backend Developer to join our growing/ multi-national team. Reporting directly to our Vietnam-based Team Lead, the Backend Developer will work closely with the development team to design and build applications for our growing product portfolios.

Key Responsibilities

• Design and implement high-throughput, low-latency backend services using Node.js and Golang
• Use agentic AI tools (e.g., Claude Code, Cursor, GitHub Copilot) to accelerate development, automate code reviews, and improve code quality
• Identify and implement opportunities to integrate AI agents into backend workflows, CI/CD pipelines, and operational processes
• Build and maintain high-performance APIs with strict performance and reliability requirements
• Design and maintain scalable microservices capable of handling high transaction volumes
• Ensure idempotency, consistency, and fault tolerance across processing flows
• Implement robust error handling, retry strategies, and reconciliation processes
• Work closely with DevOps teams to improve observability, monitoring, and alerting
• Participate in architecture and performance design reviews
• Conduct code reviews with a strong focus on performance, security, and reliability

Required Skills

• Strong backend development experience with Node.js and Golang
• Deep understanding of concurrency, asynchronous programming, and multithreading
• Proven experience building high-performance or high-traffic systems
• Proven experience working with agentic AI development tools (e.g., Claude Code, Cursor Agent, GitHub Copilot) — not limited to chat-based AI usage
• Ability to design effective prompts, workflows, and context strategies to maximise output from AI coding agents
• Strong knowledge of RESTful API, socket protocol, design and backend architecture
• Experience with relational databases (PostgreSQL/MySQL/SQL Server) and transactional data modelling
• Understanding of distributed systems concepts (timeouts, retries, circuit breakers, idempotency)
• Solid experience with performance profiling and optimisation
• Familiarity with security best practices for backend systems
• Infrastructure-as-Code experience (Terraform, CloudFormation, etc.)

Desirable Skills

• Experience working on payment gateways, fintech, or financial systems
• Knowledge of AS2805, ISO 8583, ISO 20022 or equivalent payment message formats.
• Knowledge of PCI DSS or payment security standards
• Experience handling peak traffic, failover, and disaster recovery
• Knowledge of rate limiting, throttling, and traffic shaping
• Design systems that operate reliably across multiple cloud providers (e.g. AWS, GCP, Azure)
• Optimise system performance across CPU, memory, I/O, and network latency

Benefits

• Social insurance contributions based on full salary, in accordance with Vietnam Labor Law.
• Full salary during probation period
• 13th month salary & performance bonus
• Generous leave: 14 annual leave days, 5 sick leave days, 3 conference leave days, and 1 birthday leave day per year
• Biannual performance reviews to support your career growth
• Annual health check-ups & vaccinations
• Premium health insurance (covering spouse & children)
• Personal learning & career development allowance (15.6 million VND/year)
• Comprehensive health scheme (6.2 million VND/year)
• Company laptop provided
• Free parking, coffee, snacks, and more
• Clear and attractive career path opportunities
• Regular team dinners & team building activities
• International, dynamic & friendly working environment