QA Automation Engineer · Performance Engineering · Capital Markets Systems · Trading Infrastructure
Building quality systems for trading platforms where reliability, performance, and correctness directly impact business and financial outcomes.
- QA Automation Engineer specialising in capital markets, trading systems, and release engineering
- Builder of test infrastructure, performance validation platforms, and exchange protocol simulators
- RHCSA-certified engineer with background in software engineering, Linux infrastructure, DevOps, and IoT systems
- Experience delivering healthcare technology solutions across 70+ hospitals in Indonesia
Currently focused on test automation, performance engineering, release confidence, observability, contract testing, and exchange protocol validation across capital markets systems.
A centralized QA platform orchestrating end-to-end testing lifecycles for capital markets and fintech systems.
Key capabilities:
- AI-Assisted Test Generation: Parses PRDs using an advanced 3-level fallback strategy to generate BDD-style test cases via LLMs (RAG) and syncs with Qase.
- Performance Test Orchestration: Queues and executes k6 load tests using lease-based distributed workers with live SSE updates.
- Observability & Webhooks: Proxies Grafana/Prometheus metrics and delivers results to Teams, Discord, and Telegram.
- Tech Stack: React 19, Hono on Bun, Oracle DB, Playwright, k6, TypeScript.
Playwright-based crawler that discovers and catalogs API endpoints across equities, mutual funds, bonds, and eIPO workflows.
Key capabilities:
- Automated API discovery from live browser traffic
- HAR-to-OpenAPI contract generation
- Structured API Knowledge Base generation
- Memory-aware crawling
- PIN modal state management
- Tampermonkey-assisted browser exploration
- Contract-testing workflow integration
Enterprise-grade performance engineering platform built around k6.
Key capabilities:
- 27+ performance test suites
- Multi-environment execution (SSH, GCP IAP, Docker)
- Terminal-native TUI (fzf + Go)
- RBAC and session management
- Immutable audit logging
- Environment concurrency controls
- Automated reporting and alerting
- Grafana and InfluxDB integration
- Threshold-gated release validation
Replica of the Indonesia Stock Exchange trading gateway implemented using raw TCP sockets.
Protocols:
- OUCH v1.8.0
- ITCH v1.15.0
- SoupBinTCP v3.0
Features:
- Matching engine implementation
- ARA and ARB validation
- FOK and IOC order handling
- Auction session simulation
- Market-data validation
- Order lifecycle verification
- React orderbook dashboard
- WebSocket bridge
- QA automation for capital markets platforms
- API discovery and contract testing
- Performance engineering and release validation
- Exchange protocol validation (OUCH, ITCH, SoupBinTCP)
- Market-data integrity verification
- Local AI-assisted QA workflows
- Observability-driven debugging and RCA
- Structured engineering knowledge management
- Playwright
- k6
- API testing
- Contract testing
- Integration testing
- Regression automation
- End-to-end testing
- Root-cause analysis
- Load testing
- Stress testing
- Throughput validation
- Latency analysis
- Capacity assessment
- Performance observability
- Jenkins
- GitHub Actions
- Docker
- Linux
- Release validation
- Quality gates
- Automated reporting
- Environment orchestration
- Grafana
- InfluxDB
- Prometheus
- Telemetry analysis
- Reliability engineering
- Trend monitoring
I work on quality engineering and validation workflows for trading and financial systems where reliability, timing, and correctness matter.
Focus areas:
- Exchange protocol validation (OUCH, ITCH, SoupBinTCP)
- Trading order lifecycle verification
- Market-data integrity validation
- Contract testing and API governance
- Performance and latency testing
- Release confidence and production-risk reduction
- Trading workflow automation
- Exchange integration testing
Delivered and supported healthcare technology deployments across 70+ hospitals in Indonesia.
Experience includes:
- Nurse Call systems
- Code Blue systems
- Medical Gas integration
- Audio and Public Address systems
- SIMRS-related support
- IoT infrastructure
- Linux server administration
- Network deployment and support
- K3s infrastructure
- Proxmox VE environments
Selected references include RSCM Jakarta, RSUD Banten, RS PELNI Jakarta, RS Semen Gresik, RS Kartika Pulomas, RSUD Sidoarjo, RSUD Sidoarjo Barat, RSUD Maba Halmahera, RS Paru Jember, RS Bun Kosambi Tangerang, RSUD Pandega Pangandaran, RSUD dr. H. Koesnadi Bondowoso, RSUD Bobong, RS Mata Makassar, and RS Omni Cikarang.
OUCH • ITCH • SoupBinTCP • Raw TCP • WebSocket
Local LLMs • Apple Silicon • exo • Test Triage • RCA Drafting • Semantic Validation
- Test infrastructure and automation platforms
- Performance validation at scale
- Production-risk reduction
- Release confidence and quality gates
- Observability-backed debugging
- Trading systems reliability
- Contract testing and API governance
- Systems thinking across software, infrastructure, and operations
Open to discussions around:
-
QA Automation
-
Performance Engineering
-
Capital Markets Technology
-
Trading Systems
-
Exchange Protocols
-
Observability
-
DevOps
-
Linux Infrastructure
-
AI-Assisted Quality Engineering
-
Email: maulana.rafi1717@gmail.com
-
LinkedIn: https://www.linkedin.com/in/maulanarafi/