Heinrich Raxwell — Systems Architect & Full-Stack Engineer

Architecting resilient backends, financial rails, and high-throughput engines.

I design mission-critical software systems that operate under strict regulatory and concurrency constraints. Zero-downtime micro-frontends for government infrastructure, ASPI-compliant dynamic payment rails, and mathematical trading automata.

99.98%

System Availability Benchmark

< 18ms

P99 Edge Gateway Latency

0% Paper

Digital Ministry Governance

CRC16

ASPI & EMVCo Standard Verified

Selected Production Systems

Comprehensive breakdowns of deployed enterprise backends, government decision engines, and real-time execution pipelines.

Government Architecture 2026

DJKA Talent Pool & SPK Decision Engine

Civil servant human resource competency evaluation and meritocratic promotion engine for the Directorate General of Railways (Kemenhub).

● ALGORITHM: PROFILE MATCHING (GAP)

PORT :3006

Target Competency Gap: Δ = Actual_Score - Standard_Profile

Core Factor Weight (60%): OPTIMAL (13/13 CRITERIA)

Secondary Factor (40%): WEIGHTED INTERPOLATION

BSrE TTE Seal: CRYPTOGRAPHICALLY VERIFIED

STANDALONE MFE ISOLATION · AUDITED POSTGRESQL 16

▸ Mathematical Profile Matching: Translates multidimensional employee competency metrics into objective GAP scores.

▸ Micro-Frontend Isolation: Operates as an independent subsystem with zero friction session routing from ministry portals.

▸ BSrE Legal Certification: Fully paperless promotion decrees backed by electronic signatures.

PostgreSQL 16 Profile Matching Micro-Frontends BSrE TTE React & Node.js

Enterprise GovTech 2026

SiRupat (Sistem Rapat & Risalah DJKA)

Centralized executive meeting scheduling, dynamic room reservation matrix, and automated legal minutes distribution system with audit trail.

SiRupat Meeting & Room Scheduling Interface

▸ Conflict-Free Room Matrix: Real-time reservation engine that eliminates double-booking across simultaneous chambers.

▸ Instant Legal Minutes Distribution: Generates tamper-proof PDF minutes with verifiable barcode signatures immediately upon meeting adjournment.

▸ Tiered RBAC Governance: Strict segregation of Superadmin, Directorate Admin, and Attendee permissions.

Next.js Express REST PostgreSQL Tailwind CSS PDF Engine

FinTech Rails 2026 / 2027

UNIFRAS Transaction & Payment Core

High-throughput digital payment processing infrastructure supporting multi-payment gateway aggregation, dynamic QRIS, and automated bank mutations.

● INGESTION: MULTI-PG WEBHOOK BUS

PORT :3010

Dynamic QRIS Spec: EMVCo 01 / CRC16-CCITT (0x1021)

Idempotency Guard: ATOMIC REDIS DISTRIBUTED LOCK

Biller Mutation Match: UNIQUE CODE 3-DIGIT RESOLUTION

Target Architecture: POSTGRESQL 16 + DOCKER COMPOSE

SUB-SECOND SETTLEMENT · STRICT RECONCILIATION

▸ Dynamic QRIS Core: Native bitwise CRC16 validation conforming strictly to Bank Indonesia ASPI standards.

▸ Idempotency Layer: Guarantees zero double-crediting during upstream payment gateway callback retries.

▸ High-Concurrency Biller Integration: Fast asynchronous polling of PLN, Telco, and e-wallet provider endpoints.

Node.js PostgreSQL 16 Redis Locks Docker QRIS ASPI

Quantitative Systems 2026

XAU/USD Quantitative Price-Action Bot

Sub-millisecond automated order routing engine for gold spot markets, implementing mathematical risk-reward boundaries and volatility-based lot sizing.

● FEED: WEBSOCKET ORDER BOOK (L2)

SOCKET RUNTIME

Risk Model: FIXED R-MULTIPLE (1:2.5 / 1:3.0)

Volatility Sizing: ATR 14-PERIOD DYNAMIC NORMALIZATION

News Event Guard: LOCKOUT ±30 MIN HIGH IMPACT

Max Drawdown Gate: HARD CIRCUIT BREAKER (4.0% EQUITY)

ASYNCHRONOUS BRIDGE · ZERO EMOTIONAL OVERTRADING

▸ Mathematical Position Sizing: Dynamically calculates volume per trade based on pip-distance to structural invalids.

▸ Zero-Latency Execution: Direct socket protocol bridge preventing execution slippage during London/New York session overlap.

▸ Automated Circuit Breakers: Programmatic stop on all trading activities if daily risk budget is reached.

Python 3.12 FastAPI Pandas / NumPy MetaTrader Bridge WebSockets

Architectural Standards

Scalability and reliability are not accidental. They are the deliberate consequence of strict constraints and deep hardware awareness.

01 //

Idempotency & State Reconciliation

Networks drop packets, clients retry aggressively, and webhooks duplicate. Every write operation in mission-critical systems uses atomic database transactions, unique constraints, and distributed locks to ensure zero duplicate state mutations.

02 //

Pipelined Concurrency Over Monoliths

As dictated by computer architecture, system throughput is fundamentally governed by its slowest bottleneck stage. We decouple heavy I/O from critical processing loops using streaming queues, non-blocking asynchronous workers, and parallelized execution.

03 //

Zero Synthetic Data & Ground Truth First

We reject hand-wavy assumptions and placeholder hallucinations. Architecture decisions are benchmarked against live telemetry, real profiler runs, and rigorous verification before any code reaches production.

Production Stack

A battle-tested spectrum of systems software, runtime environments, and low-latency infrastructure.

● Languages & Core

TypeScript / Node.js Advanced

Python 3.12+ (Async) Advanced

SQL (PostgreSQL Dialect) Advanced

POSIX Shell / Bash Proficient

C++ (Concurreny/Pthreads) Academic

● Web & Frameworks

Next.js & React 19 Production

Express.js & RESTful APIs Production

FastAPI & Microservices Production

Tailwind CSS Design Token

WebGL & Canvas Shaders Interactive

● Data & Infrastructure

PostgreSQL 16 Engine Primary

Redis Distributed Cache Locks/PubSub

Cloudflare Edge (Workers/D1) Zero-Egress

Docker & Containerization Isolated

Git & Automated CI/CD Standard

● Protocols & Compliance

ASPI QRIS (CRC16/0x1021) National Spec

BSrE Electronic Signatures Institutional

Micro-Frontend (Module Fed) Distributed

Zero-Trust TLS / JWT RBAC Hardened

WebSocket & L2 Data Feeds Real-Time

Developer Command Center

Direct query simulator connected to Heinrich Raxwell's architectural repository. Type help to view available commands.

raxwell@edge-core: ~/systems

SSL ENCRYPTED

Heinrich Raxwell CLI v2.1.0-edge [x86_64-pc-cloudflare]

All systems nominal. Type 'help' for supported commands.

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