King Faithful

Backend & AI Engineer · Infra

about

I build backend systems, agentic AI solutions, and the infrastructure that makes them reliable in production.

My work spans distributed systems, data pipelines, and AI systems, built to handle concurrency, failures, and growing workloads.

Off the keyboard, I’m a keyboardist [pun intended (-_-)] who enjoys mathematics and physics just as much. I'm naturally curious about how things work, whether it's a musical composition or the world around us.

projects

4gee Hub

High-concurrency trading platform for secure gift card transaction processing and verification.

NestJSRedisPostgreSQL

PaddleUp

Platform for online auctions and real-time bidding

JavaSpring BootSSEWebSockets

Ledger Engine

Immutable double-entry ledger with append-only transactions and automated debit-credit validation.

JavaSpring BootPostgreSQL

Aegis

AI harness designed around a BYOK architecture

GoPythonLangChaingRPCKafkaPostgreSQL

Concord

A distributed key-value store built on Raft consensus

GoRaftgRPCDistributed Systems

Pivote

Real-time voting system with distributed locks, double-vote prevention, and WebSocket synchronization

GoWebSocketsRedisRabbitMQPostgreSQL

Agent47

Autonomous multi-agent system for codebase analysis and refactoring in isolated containers.

PythonFastAPILangChainDocker

Trex

HR workforce platform built on scalable event-driven services and data architecture.

Node.jsEvent-DrivenPostgreSQLReact

experience

Backend Engineer, BigjaraJun 2024 – May 2026

Unified platform for business growth, talent discovery, and career success.

Backend Engineer, HolowayMar 2023 – Apr 2024

Enterprise AI platform leveraging business context as RAG data across multi-agent systems.

Fullstack Engineer, Definity SolutionsFeb 2021 – Jan 2023

Software consultancy delivering banking and fintech solutions for enterprise clients.

Backend Developer, TeknologyMar 2018 – Oct 2020

Tech agency building software products for businesses across emerging markets.

writings

2026-10-28Coordinating Scheduled Jobs in Distributed Systems

3 min

2026-10-28

3 min

skills

Languages

Java

Python

TypeScript

Backend

Spring Boot

Gin

FastAPI

Nest JS

Node.js

Databases

PostgreSQL

MySQL

MongoDB

Redis

Messaging

Kafka

RabbitMQ

Celery

BullMQ

AI Engineering

LangChain

LangGraph

HuggingFace

Cloud & Infrastructure

Docker

Kubernetes

AWS

GitHub Actions

Nginx

Frontend & Mobile

React

Next.js

React Native

Expo

contact

Working on something interesting or have an opportunity in mind?
Let’s connect.

kingfaithful001@gmail.com

github linkedin x / twitter