StraitsX is hiring a Backend Engineer - Card Issuing Team in STX - Engineering — Jakarta, Jakarta, Indonesia. The overview below is synthesized from the employer posting on job-boards.eu.greenhouse.io: factual requirements and scope are preserved, but prose is rewritten with editorial context. Verify details and apply via the employer link.
About the Role
Day-to-day scope for the Backend Engineer - Card Issuing Team as described in the posting:
We are looking for a passionate Backend Engineer to join our Card Issuing Team, which is building APIs and infrastructure that enable businesses to launch and manage their own card programs across Southeast Asia.
This role will work closely with cross-functional teams to build scalable backend services, support integrations with payment providers and third-party systems, and contribute to the development of a card issuing platform.
The ideal candidate is someone who enjoys solving technical challenges, thrives in fast-paced environments, and is excited about building scalable fintech infrastructure from the ground up.
What You Will Do
- Design, develop, test, and maintain backend services and APIs for the Card Issuing platform
- Build and maintain high-availability scalable systems supporting card issuance and payment processing
- Work with third-party APIs and payment integrations for local and global card transactions
- Troubleshoot and resolve system issues, performance bottlenecks, and scalability challenges
- Support regression testing, integration testing, and system reliability improvements
- Address bugs, technical debt, and operational support requests
- Participate in sprint planning, code reviews, and technical discussions
- Implement security and engineering best practices across services and infrastructure
- Build internal operational tools and reporting systems for platform management
- Support incident response and on-call duties when required
- Collaborate closely with Product, Design, QA, and Operations teams on feature delivery and platform improvements
What We Are Looking For
- Bachelor's degree in Computer Science, Engineering, or a related field
- 3–5 years of backend engineering experience, with a proven track record of building and operating production systems
- Strong proficiency in Golang
- Experience building and maintaining RESTful APIs
- Familiarity with microservices architecture
- Experience with SQL databases, preferably MariaDB or MySQL
- Familiarity with Git and GitHub workflows
- Experience with Docker and CI/CD pipelines
- Strong debugging, troubleshooting, and problem-solving skills
- Willingness to learn and operate in a fast-paced environment
- Familiarity with AI-assisted development tools such as Claude, Codex, Cursor, or similar
- Familiarity with Kubernetes, cloud infrastructure, and observability tools
Build a standout application
For the Backend Engineer - Card Issuing Team at StraitsX, reviewers look for concise evidence over buzzwords. Mirror the language of the posting sparingly, quantify support or delivery outcomes, and show how you handled ambiguity, time-zone collaboration and user empathy. Keep your resume to impact, keep your cover note to one page, and link to artifacts — tickets resolved, docs shipped, dashboards owned — that prove you can operate in a fast-moving Web3 team. Prepare to discuss a time you turned a confusing user report into a clear fix and how you measure quality in support and operations.
Web3 hiring values reliability: on-time follow-through, clear writing, and a track record of improving runbooks and tooling. Treat the application as a work sample. For interviews, be ready to walk through how you prioritize across time zones, handle a difficult user, and decide when to escalate versus resolve directly. Show how you document decisions so the next teammate benefits.
In a distributed Web3 org, trust builds through written clarity. Use the cover note to demonstrate it.