Gauteng: Backend Developer (Payments) (Ruby, Kafka, Temporal.io, PostgreSQL) (Remote) posted by Datafin
Posted on 2025-05-18 00:00:00
| Employer | Datafin |
|---|---|
| Category | Development |
| Location | Gauteng / Gauteng |
Job Summary
KwaZulu Natal – South Africa, Gauteng – South Africa, Western Cape – South Africa, Remote
- Implement Financial Ledger Build a double-entry bookkeeping system that maintains strict data integrity and audit trails for all financial transactions.
- Build Event-Driven Architecture Develop an event-first architecture using Kafka to ensure reliable, scalable message processing for financial transactions.
- Orchestrate Complex Workflows Implement robust workflow orchestration using Temporal.io to manage multi-step payment processes, reversals, and reconciliation tasks.
- Product Mindset Passionate about creating value for users, with a focus on outcomes rather than just output.
- Ensure Financial Accuracy Create systems that guarantee accurate accounting, prevent race conditions, and maintain strict consistency in financial records.
- Develop Integration Layer Design and build APIs that securely connect our platform with banking partners, payment processors, and other financial institutions.
- Implement Compliance Features Build functionality that ensures regulatory compliance, including transaction monitoring, reporting, and audit capabilities.
- Establish Resilient Systems Design for fault-tolerance with emphasis on recovery mechanisms, transaction replay capability, and comprehensive audit logs.
- Collaborate on Architecture – Work closely with the engineering leadership to define architectural patterns and infrastructure choices that enable scale and reliability.
- Documentation and Knowledge-Sharing -Create comprehensive documentation of system design, financial models, and technical decisions. Mentor team members on financial systems best practices.
- 6+ Years of Backend Software Development experience, with at least 3 years building financial systems, payment platforms, or ledger services.
- Deep understanding of financial ledgers, double-entry bookkeeping principles, and reconciliation processes.
- Experience with financial data modelling and transaction flow design.
- Strong experience with event sourcing, CQRS patterns, and message broker systems, particularly Kafka for high-throughput financial systems.
- Experience making informed technical decisions that balance user needs, business goals, and engineering constraints.
- Experience with workflow orchestration frameworks, ideally Temporal.io, for managing complex, long-running financial processes.
- Proven track record building highly available, fault-tolerant distributed systems with an emphasis on data consistency and reliability.
- Expert-level understanding of database transaction models, consistency patterns, and optimizations for financial data.
- Ability to architect complex systems with careful consideration for scalability, maintainability, and operational excellence.
- Strong knowledge of security best practices for financial applications and data protection.
- Ability to work remotely with your own equipment.
- Willingness to overlap work hours until 12:00-13:00 EST (negotiable).
- Proven ability to make sound technical decisions, mentor other engineers, and communicate complex concepts clearly.
- Exceptional analytical abilities to solve complex financial and technical challenges.
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