Backend Engineer, Card Issuing

Partech; Kuala Lumpur; On-site; MYR 180,000 - 280,000; Full time

Job summary

Partech is hiring a Senior Backend Engineer for its Card Issuing Team in Southeast Asia. You will own a core domain within a live production platform, drive architectural decisions, and guide the technical direction for scalable, secure money-moving systems.

You will design, implement, and operate RESTful microservices in modern cloud infrastructure, with a focus on reliability, PCI DSS compliance, and collaboration across product, QA, and operations.

Qualifications

• 5+ years of backend engineering with high-scale/financial production systems.
• Expert-level Golang for microservices in cloud environments.
• Advanced SQL skills (MariaDB/MySQL) including transactions and migrations.
• Excellent debugging and ability to document technical trade-offs clearly.
• Hands-on use of AI-assisted development tools to accelerate delivery.

Responsibilities

• Lead technical design for high-availability money-moving systems and scale RESTful microservices.
• Take ownership of a core domain (e.g., authorization, settlement) balancing features with reliability.
• Partner with Product, QA, and Ops to split problems into deliverable work and mentor engineers.
• Drive integrations with card networks and payment processors.
• Pioneer AI-assisted workflows within a regulated payments environment.

Skills

Golang

Microservices

Cloud platforms

SQL (MariaDB/MySQL)

Code debugging

AI tools

Tools

Docker

Kubernetes

CI/CD

Job description

About the Role

We are looking for a Senior Backend Engineer to join our Card Issuing Team, which builds the APIs and infrastructure that let businesses launch and manage their own card programs across Southeast Asia. You will take ownership of a core domain within our live production platform, setting the technical direction and raising the engineering bar. This role suits someone who has run high-stakes production systems and is comfortable making architectural decisions with incomplete information.

What You Will Do

• Lead the technical design (writing RFCs) for high-availability money-moving systems, making critical decisions on scalability, consistency, and failure handling.

• Take full technical ownership of a core domain (e.g., authorization, settlement), balancing new product features with technical debt and reliability.

• Build and scale RESTful microservices, ensuring strict idempotency, reconciliation correctness, and security (PCI DSS) in every financial flow.

• Drive technical integrations with card networks, payment processors, and third-party providers.

• Partner with Product, QA, and Ops to break down ambiguous problems into deliverable work, while mentoring junior/mid-level engineers.

• Pioneer the use of AI tools and agents to safely automate engineering and operational workflows within a regulated payments environment.

What We Are Looking For

• 5+ years of backend engineering, with a strong track record of designing, launching, and operating high-scale or financial production systems.

• Expert-level Golang with deep experience building microservices deployed on modern cloud infrastructure (Docker, Kubernetes, CI/CD).

• Advanced SQL skills (MariaDB/MySQL), including query optimization, transactions, locking, and live schema migrations.

• Excellent debugging skills, sound judgment on technical trade-offs, and the ability to write clear technical documents to drive team alignment.

• Hands-on experience using AI-assisted development tools (like Claude or Cursor) to accelerate delivery without compromising code quality.

• Domain Knowledge (Bonus):Prior experience with payments, card issuing, settlement systems, network integrations (Visa/Mastercard, ISO 8583), or PCI DSS compliance is a strong plus.