Java • Cloud • AI • Performance Engineering

Muvhulawa Muthula Solutions Development Engineer

I build high-performance Java backend systems, cloud-native APIs, and AI-powered services — combining RAG pipelines, JVM performance tuning, and production-minded engineering across Java 8, 17, and 21.

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Java 8 · 17 · 21 Modern backend engineering

JVM Memory and performance

Azure · OCI · AWS Multi-cloud experience

class Engineer {
  String name = "Muvhulawa Muthula";
  String stack = "Java 8, Java 17, Java 21";
  String focus = "Backend Performance, RAG, Cloud and AI";

  void build() {
    designCleanAPIs();
    optimizeJVMSystems();
    shipCloudReadyProjects();
  }
}

About Me

Backend engineer building serious systems.

I am a Solutions Development Engineer focused on Java backend engineering, performance tuning, concurrency, JVM diagnostics, REST APIs, and cloud-native systems across Azure, OCI, and AWS. My projects are designed to demonstrate real engineering depth: scalable APIs, parallel processing, reactive pipelines, memory analysis, and clean backend architecture.

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Featured Projects

Real Java projects beyond basic CRUD.

Low Latency

Order Matching Engine

A trading-style matching engine built with Java, focused on order books, price-time priority, concurrency, and performance-minded architecture.

Java Concurrency Performance Matching Engine

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Fintech Backend

Bank Africa Management System

A full-stack banking API built with Spring Boot 3 and Java 21 — JWT auth, idempotent transfers, pessimistic locking to prevent overdrafts, an immutable ledger, and SWIFT MT103 message generation, backed by 146 tests.

Java 21 Spring Boot JWT Security MySQL

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Cloud Observability

Azure JVM Observatory

A cloud-native platform that simulates JVM stress — CPU burns, memory leaks, virtual thread overload — then self-diagnoses heap pressure and thread spikes, streaming telemetry to Azure Application Insights and Monitor for alerting.

Java 21 Spring Boot Azure Observability

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AI Engineering

AI Java Reviewer

An AI-powered code review tool that scans Java for security flaws, anti-patterns, and complexity — built on langchain4j and the Claude API. Runs as a GitHub Action with diff-aware filtering, inline PR comments, and SARIF reports for Code Scanning.

Java langchain4j Claude API GitHub Actions

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Cloud / DevOps

Azure Cloud Resume

This very site — a serverless resume on Azure Static Web Apps with a visitor counter powered by an Azure Function. Infrastructure is managed with Terraform and shipped through GitHub Actions CI/CD gated on tests.

Azure Terraform Azure Functions GitHub Actions

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Kubernetes Platform

JavaApp Operator

A Kubernetes operator that automates the full lifecycle of stateful Java apps from a single custom resource — provisioning StatefulSets, Services, and storage, with rolling upgrades, readiness gating, and HPA-aware autoscaling.

Java Quarkus Kubernetes Operators

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JVM Diagnostics

Memory Leak Detector

A JVM-focused project for investigating memory behavior, leak patterns, heap pressure, profiling, and Java application diagnostics.

Java JVM Heap Memory Analysis

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Parallel Processing

Parallel File Word Counter

A Fork/Join based file processing project that splits large text workloads into parallel tasks for faster counting and analysis.

Java Fork/Join Parallelism Files

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Reactive Systems

Reactive Data Pipeline

A Java reactive pipeline exploring non-blocking processing, backpressure, event-driven design, and scalable stream-style data handling.

Java 21 Reactive Backpressure Pipeline

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Social Impact API

DailySpane Jakarta API

Backend API for DailySpane, a South African employment-focused platform connecting people to daily odd jobs through a secure API-first design.

Java Jakarta EE REST API Security

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Technical Stack

Tools I use to build production-minded systems.

Java 21 Java 17 Java 8 Spring Boot Jakarta EE REST APIs Virtual Threads Fork/Join Reactive Programming Docker Azure OCI AWS Terraform GitHub Actions MySQL Oracle Vector Search OpenAI APIs JVM Memory Analysis

Let’s Build

Backend systems. Cloud projects. Performance engineering.

[email protected] GitHub South Africa