Calistus Nnachebe

// about

I'm a Software Engineer and DevSecOps Engineer who builds things people actually use. I have shipped developer tools with 1000+ active users, production AI routing infrastructure, security scanners, and CLI tooling — all independently, from design to deployment. I treat security as an engineering discipline, not a compliance checkbox: supply-chain hardening, automated vulnerability scanning, and CI/CD hardening built in from day one, not bolted on at release.

I am currently building Ollagenix — a production-grade AI request router with intelligent failover, latency-aware load balancing, and BYOK architecture behind a single OpenAI-compatible endpoint. Open to remote backend and DevSecOps roles where backend depth and security rigour both matter.

# experience

Founder & Software Engineer

Ollagenix · May 2026 – Present · Nigeria

Building Ollagenix Router — a production-grade OpenAI-compatible proxy for intelligent multi-provider LLM routing
Designed and implemented BYOK (Bring Your Own Key) architecture so teams can use their own provider keys without lock-in
Built intelligent failover and latency-aware load balancing that automatically reroutes traffic when providers fail, latency spikes, or costs exceed thresholds
Engineered multi-provider orchestration supporting OpenAI, Anthropic, Gemini, DeepSeek, and any OpenAI-compatible endpoint
Developing usage analytics and observability for real-time routing visibility

TypeScriptPythonAI InfrastructureBackend EngineeringAPI DesignLLM Routing

Backend Engineer — AI

FlyRank AI · May – Jun 2024 · Remote (North America)

Built and iterated on LLM-powered agent pipelines for content generation and SEO automation
Worked inside a multi-agent architecture (Copy, SEO, and Visual agents) with human review layers
Contributed to backend infrastructure serving DTC and B2B clients across the US, EU, and APAC
Collaborated directly with senior AI engineers and the Director of AI Development

PythonLLMsAI AgentsBackend EngineeringAPI DevelopmentPrompt EngineeringSEO Automation

education

ALX Africa

AI-Native & Software Engineering

2025 – 2026Graduated

## competencies

Backend Systems Engineering

Design and implementation of production-grade RESTful APIs and microservices using Python (FastAPI, Django REST Framework) and TypeScript (NestJS). Every system is built for scale, observability, and long-term maintainability — not just to ship.

DevSecOps & Supply Chain Security

Security integrated at every stage of the development lifecycle, not bolted on at the end. Container security with Docker, automated vulnerability and dependency scanning, CI/CD pipeline hardening via GitHub Actions, and supply chain integrity as a first-class engineering concern.

Infrastructure & Reliability

Linux-based infrastructure management (Ubuntu/WSL), deployment automation, environment parity across dev and prod, and system reliability improvements that reduce downtime and increase deployment velocity.

## stack

Core

PythonTypeScriptGo

Backend

FastAPIDjangoNestJSPostgreSQLRedis

Frontend

Next.jsReact

Infrastructure

DockerGitHub ActionsLinuxAWS

Security

SASTDependency ScanningSupply Chain SecurityJWTOWASP

## projects

// currently building

Launching Soon

Ollagenix Router

Production-grade routing for AI workloads.

Intelligent FailoverLatency-Aware Load BalancingBYOK — Bring Your Own Keys

Route requests across any AI provider through a single OpenAI-compatible endpoint. Ollagenix adds intelligent failover, latency-aware load balancing, and policy-driven orchestration — so your AI features stay resilient when models change, providers go down, or costs spike.

Join Waitlist →See how it works ↗

Early access · We only email you about launch.

Ollagenix Router landing page — production-grade routing for AI workloads

Zelte landing page — zero-config API testing for backend engineers

Zeltefeatured

TypeScript · JavaScript

Zero-config CLI tool that eliminates the setup overhead of API testing. Write YAML, run one command, done.

cliapi-testingdeveloper-toolsopen-source

GitHub Live

CodeJaguar landing page — AI code review running on your machine

CodeJaguarfeatured

TypeScript · Python

Local-first AI code reviewer and security auditor CLI. Bring your own key — no SaaS, no cloud backend, no telemetry, no accounts. Runs entirely on your machine.

cliai-powereddevsecopssecurity-scanner+4

GitHub Docs & UI

GlixyMetric

TypeScript

VS Code extension that automatically tracks your coding sessions, commits, and daily productivity — stored locally, zero telemetry.

vs-code-extensiondeveloper-toolsproductivitytypescript

GitHub

curl — POST /api/orders

$ curl -X POST https://nexus.api/api/orders \
    -H 'Authorization: Bearer $JWT' \
    -d '{"items":[{"sku":"NX-42","qty":2}]}'
 
HTTP/1.1 201 Created
{
  "order_id": "ord_7fa9",
  "status": "pending_payment",
  "total": 89.98,
  "payment": { "gateway": "stripe", "intent": "pi_3Nx" }
}
→ docs at /api/docs/  ·  auth: JWT  ·  92% coverage

Nexus E-Commerce API

Python

Production-grade e-commerce REST API with full order lifecycle, JWT auth, payment gateway integration, and containerised CI/CD deployment.

backendapie-commercedjango+2

GitHub

Campus Vote

TypeScript · Next.js

Secure digital campus voting platform — a full-stack ALX Nexus project enabling tamper-resistant student election management.

civic-techbackendalx-nexusvoting+1

GitHub Live

FlyVidX

Python · Next.js

AI-powered video clipping platform. Automatically generates short-form vertical clips from long-form video across 10+ platforms. Built solo for the DevCareer × Nomba Hackathon 2026.

ai-poweredvideo-processingbackendpython+1

Backend APIPrivate repo

venator scan — OWASP Juice Shop

$ venator scan --target http://juice-shop.local
→ crawling attack surface ... 47 endpoints mapped
 
[CRIT] SQL injection      /rest/user/login
[HIGH] Auth bypass        /api/v1/admin
[MED ] Reflected XSS      /search?q=
[MED ] Sensitive data     /ftp/coupons.json
[LOW ] Missing headers    CSP, X-Frame-Options
 
5 findings · 2 critical · scan complete in 8.3s

Venator

Go · Next.js

Security testing tool built as a Burp Suite alternative, targeting OWASP Juice Shop vulnerabilities — integrated security testing without heavyweight enterprise tooling.

securitydevsecopsvulnerability-scanningowasp+1

GitHub

// currently

$ buildingOllagenix Router — multi-provider AI routing infra
$ learningGo for high-throughput backend services
$ shippingtools engineers actually use
$ open to remote backend & DevSecOps roles

$ whoami --available

Open to full-time and contract roles in:

→ Backend & Software Engineering roles
→ DevSecOps & Platform Engineering
→ AI Infrastructure & Applied AI Engineering

I build production backend systems, harden the pipelines that ship them, and engineer the AI infrastructure behind them — bringing backend depth and security rigour to teams scaling software that businesses depend on.

Send Email →↓ Download CV View GitHub →

Available immediately · Remote-ready · UTC+1

// about

# experience

Founder & Software Engineer

Backend Engineer — AI

Independent Engineering & Open Source

Full Stack Engineer (Internship)

## competencies

Backend Systems Engineering

DevSecOps & Supply Chain Security

Infrastructure & Reliability

## stack

## projects

Ollagenix Router

// currently

$ whoami --available