Infrastructure Engineer transitioning from telecom automation to payment systems.

Currently building production automation for fiber networks (60K+ devices) while exploring payment infrastructure through hands-on projects. Focused on the hard technical problems: multi-currency settlement, exact decimal arithmetic, legacy system integration, and high-throughput transaction processing.

Transition focus: Applying distributed systems and infrastructure engineering experience from telecom to payment systems challenges.

Multi-currency payment platform | Active development

Cross-border payment infrastructure with real-time FX integration, settlement reconciliation, and double-entry accounting. Built for remittance corridors but architecture supports any multi-currency payment scenario.

Tech: Go · PostgreSQL · Redis · TigerBeetle
Capabilities: Multi-currency accounts, FX engine, settlement reconciliation, audit trails

Payment rails abstraction | Active development

Unified interface across payment methods—bank transfers (SWIFT/ACH/SEPA), mobile money, card networks, CBDC. Provides corridor with provider-agnostic payment execution.

Tech: Go · Zig (FFI layer for performance-critical paths)
Design: Abstract provider differences, consistent API for payment applications

Financial primitives for Zig | Research

COBOL-compatible data types for modern systems. COMP-3 packed decimals, EBCDIC codec, mainframe file I/O. Enables processing legacy bank data formats with exact precision.

Tech: Zig
Use case: Settlement file processing, batch reconciliation, mainframe integration
Context: 43% of banking systems globally still run COBOL

Software Engineer | Network Automation & Infrastructure
2022 - Present

Production automation for fiber network operations (60K+ ONUs, 310+ OLT devices). Built provisioning systems, monitoring dashboards, incident ticketing platform.

Tech: TypeScript · EffectTS · Go · Redis · PostgreSQL
Systems: ONU activation automation, network monitoring, API integration with network equipment

Previously: Backend development (Node.js/TypeScript), database optimization, distributed caching

Transferable skills:

• High-availability systems (99.9% uptime telecom infrastructure)
• Real-time data processing (network telemetry, event streams)
• API integration with legacy systems (OLT vendor APIs)
• CRUD systems and automation tooling

Languages: TypeScript · Go · SQL
Infrastructure: PostgreSQL · Redis
Domains: Distributed systems · Real-time processing · API integration · Network automation

Payment domains: Settlement · Multi-currency ledgers · FX integration · Legacy bank interop
Tech stack: Temporal · TigerBeetle · Zig
Protocols: GPON/ITU-T (professional) · SWIFT/ISO 20022 (learning)

Transition goal: Infrastructure or backend engineering roles in payment systems, where my distributed systems experience and payment exploration can converge.

Ideal opportunities:

Early-stage fintech where I can:

• Build payment infrastructure from ground up
• Contribute to core settlement systems
• Work on legacy bank integration challenges

Engineering roles in:

• Cross-border payment platforms
• Payment processors (settlement, reconciliation)
• Core banking modernization
• Real-time payment rails

What I bring:

• Production infrastructure experience (high-availability, scale)
• Self-directed payment systems learning (corridor, spectrum, zcobol)
• Hands-on fintech exploration (not just theory)
• Comfortable with ambiguity and greenfield projects

Locations: Singapore · Remote (EU/US) · Open to relocation
Timezone: Flexible for global teams (UTC+7, adaptable)

Email: [email protected]
LinkedIn: linkedin.com/in/rickyraz
Location: Jakarta, Indonesia

_{All projects are learning exercises. I write about challenges and decisions as I go. Quality over features.}