Senior Backend Software Engineer

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Group People & Culture at OXZ Capital PTE LTD

What we’re looking for

We are seeking a talented, endlessly curious individual to join our team. You’ll be working closely with one of our portfolio companies in the fintech sector as part of the Engineering department. This company is a leading B2B fintech platform in its field, processing over US$2B across multiple currencies annually. We’re looking for individuals who are driven to create meaningful value, take full ownership of what they build, and thrive in a fast-paced, high-growth environment. If you’re motivated by impactful work and eager to be part of an innovative team, we’d love to hear from you.

Responsibilities

• Design, develop, and maintain scalable backend services using Go, with a strong emphasis on code quality and maintainability
• Integrate with third-party payment services (e.g. banks, e-wallets) and handle edge cases such as ambiguous or delayed responses
• Write robust unit and integration tests for all new features and ensure proper validation for critical payment flows
• Collaborate cross-functionally with product, infra, and QA teams to define, design, and ship high-impact features
• Guide and mentor junior and mid-level engineers, providing technical leadership through code reviews, design discussions and pairing sessions
• Lead by example in enforcing clean architecture, clear documentation, and reliable observability practices
• Identify and resolve performance bottlenecks, improve system resilience, and optimize for correctness and traceability
• Stay up to date with emerging technologies and propose improvements aligned with business goals
• Build software with security and compliance in mind, ensuring proper access control, logging, and auditing
• Deploy applications to AWS infrastructure and support operational readiness of services

Qualifications

About Us

XenithPay is a B2B payment service provider focused on enabling seamless cross-border commerce. With an MSB license in Canada and PJP III license in Indonesia, we offer global merchants a one-stop solution to manage multi-currency payments - with a strong focus on alternative payment methods in emerging markets. Our deep regional expertise and strong partnerships with top local gateways, we simplify the complexity of fragmented payment landscapes, helping global merchants expand faster and more efficiently. At XenithPay, we believe in building a culture where people feel empowered, trusted, and challenged to do their best work. Join us as we build the financial infrastructure of tomorrow!

Seniority level

Seniority level

Mid-Senior level

Employment type

Employment type

Full-time

Job function

Job function

Engineering, Information Technology, and Finance

Industries

Financial Services, Software Development, and Engineering Services

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