RAG / AI CHATBOTSystems Integration
FAQ knowledge agent for web experiences
Core stack
- • Python + LangChain
- • ChromaDB vector search
- • n8n workflow automation
Impact
- • < 2s FAQ response time
- • 90%+ relevant answers
- • Easy PDF ingestion flow
SYSTEMS ACTIVE // AVAILABLE FOR ENGINEERING ROLES
Software & Integration Engineer
I build the systems that connect code, data, automation, and AI. I design backend services, multi-system integrations, event-driven webhook architectures, and automated data pipelines using Node.js, Python, n8n, and modern AI infrastructure.
➤ Host: Localhost:8000 // Database: Active
◆ Manvelle Menswear PRODUCTION ENGINE
~70% reduction in manual operations via multi-modal GPT-4o state streams.
◆ DATAOPS SEEDING PIPELINE
Cloudflare Edge Workers processing high-volume CSV scrubbing into Confluence API hooks.
◆ LOCALIZED RAG CLUSTER
Python-driven semantic querying pipeline running over localized ChromaDB vector indexes.
/* FEATURED SYSTEMS */
Featured Work
Projects & Case Studies
A selection of projects that showcase my expertise in building scalable systems and automation.
WHATSAPP / SALES AUTOMATIONWorkflow Orchestration
Stateful inbound lead qualification engine
Core stack
- • n8n orchestration
- • LangChain + GPT-4o
- • Google Sheets memory
Impact
- • ~70% manual workload reduction
- • Multi-modal awareness
- • Human handoff gate
DATAOPS / SEEDING PIPELINEProduction Automation
Client data seeding automation
Core stack
- • n8n workflow orchestration
- • Python + Node.js processing
- • Slack, Confluence + Drive APIs
Impact
- • 85% analyst effort reduction
- • 100% Confluence status updates
- • Auditable run logs
REAL-TIME / LEARNING PLATFORMWebSocket Systems
Corporate live training platform
Core stack
- • React + Vite frontend
- • Node.js + Express API
- • WebSockets + PostgreSQL
Key capabilities
- • Instructor-led playback control
- • Late-join state recovery
- • Clock drift correction
System Profile
Built for the work between systems.
I turn disconnected tools and manual operations into reliable workflows. The focus is not only on shipping an integration, but making it observable, maintainable, and useful to the people who run it.
$ engineering_principles
reliable inputs → clear state → traceable outputs
Core Stack
Claude
Python
JavaScript
Node.js
React
n8n
MongoDB
MySQL
01 / Backend + APIs
Integration-ready services
Backend logic, webhooks, payload validation, and API contracts that keep systems communicating predictably.
02 / Automation
Workflow orchestration
Event-driven n8n workflows that connect teams, tools, and operational processes without fragile manual handoffs.
03 / AI Systems
Grounded AI workflows
Retrieval, automation, and human handoff patterns designed to make AI useful inside real operating environments.
04 / Data Operations
Clean, traceable pipelines
Data normalization, audit-friendly status updates, and pragmatic monitoring around every critical workflow.
Experience Log
Engineering experience
// production experiences
commit 7f3a91c
Author: Samuel Kyere <visual@alpha.com>
Date: Jan 2023 - Jan 2026
feat(experience): Software and automation Engineer @ Visual Alpha
Owned the engineering and automation layer across data pipelines and AI-assisted tooling, taking systems from ingestion and processing through validation and quality control.
- • Architected and maintained Python-based data pipelines and AI agent workflows as the sole engineer on the codebase.
- • Automated 40–85% of previously manual operational workflows, reducing repetitive work while maintaining production reliability.
- • Built validation and quality-control mechanisms that improved consistency across data processing workflows.
PythonNode.jsGitMySQL
3 files changed, 214 insertions(+), 58 deletions(-)
commit 4d82c6e
Author: Samuel Kyere <samuelkyere@microverse.com>
Date: March 2022 - Dec 2022
feat(experience): Code Reviewer @ Microverse
Evaluated production-style applications and capstone projects against technical specifications, code-quality standards, and architectural requirements.
- • Conducted structured code reviews across React, Redux, Ruby on Rails, and PostgreSQL projects, identifying implementation, architectural, and specification issues.
- • Provided actionable technical feedback that guided developers toward maintainable, specification-compliant solutions.
- • Evaluated and approved final capstone submissions against defined engineering and quality standards.
ReactReduxRuby on RailsPostgreSQL
6 files changed, 142 insertions(+), 37 deletions(-)
commit 2b88e4d
Author: Samuel Kyere <samuel@eziticket.com>
Date: Apr 2021 - Dec 2021
feat(experience): Backend Engineer @ eziticket
Designed and built the backend infrastructure for a mobile ticketing MVP, translating insights from user interviews at bus terminals into a functional booking and ticketing system.
- • Built the Node.js backend and REST APIs supporting the Flutter mobile application.
- • Designed data models and backend services using Node.js and MongoDB to support ticketing and booking workflows.
- • Took the product from concept to working MVP within six months, validating the product against real-world user demand before discontinuing it due to insufficient commercial traction.
FlutterNode.jsExpress.jsMongoDB
5 files changed, 168 insertions(+), 22 deletions(-)
Engineering Notes
Writing & technical thinking
Short notes on reliable automation, integrations, and practical AI systems.
Integration Patterns · 3 min read
Webhook vs. API: Understanding the difference and when to use each one
A practical guide to choosing pull-based APIs or event-driven webhooks based on how a system's data changes.
Read article →JavaScript Fundamentals · 4 min read
Understanding “not defined” and “undefined” in JavaScript
A clear walkthrough of reference errors, scope, declared values, and the debugging difference between these two terms.
Read article →AI Systems · 8 min read
The Shift from Deterministic Automation to Probabilistic Automation
Why reliable workflows need different design choices when the task moves from repeatable execution to judgment and ambiguity.
Read article →Connection Ready
Let's build reliable systems.
Have a process that could be automated or a system that needs building? Let's talk, I'm open to engineering roles and automation collaborations.
status: Available for collaborations
location: Accra, Ghana · preference: Open to remote, hybrid, or onsite