01

the engineer // philosophy

A direct line to systems that work on the worst day.

I'm the engineer behind shortkohdz. My work lives where distributed backend systems, cloud infrastructure, and AI engineering meet reality: concurrent ledgers that cannot drop a cent, network scanners that preserve history, and cloud infrastructure I provision and operate myself, not just sketch on a whiteboard.

Go and TypeScript are my daily tools, with Rust and Python at deep systems depth. Certified Kubernetes Administrator (CKA) by the Linux Foundation, with verified credentials in Agentic AI Architectures, OpenAI API & Model Fine-Tuning, and AWS Solutions Architecture (Associate in progress). Grounded in Anatomy from Olabisi Onabanjo University, I approach software from empirical first-principles: fault isolation, system redundancy, and deterministic correctness under load across fintech, proptech, edtech, healthtech, and civic empowerment platforms.

The name shortkohdz is borrowed from telecom USSD strings (like *123#)—the quiet signalling channel that remains operational when data packets fail, cell networks congest, and bloated apps stall. That is the standard: access first, friction last.

OBANIJESU AJAYI · FULL-STACK & INFRASTRUCTURE ENGINEER
ENGINEERING DOSSIERREF: SKD-2026
VERIFIED CERTIFICATIONS & CREDENTIALS
Certified Kubernetes Administrator (CKA) · Linux Foundation
Agentic AI Fundamentals: Architectures, Frameworks & Applications
OpenAI API & Model Fine-Tuning
AWS Certified Solutions Architect, Associate (In Progress)
SECTORS & DOMAINS
Fintech · Proptech · Edtech · Healthtech · Civic Empowerment
LANGUAGES & RUNTIMES
Go 1.25 · Rust · TypeScript · Python · SQL · Bash · C#/.NET
CORE ARCHITECTURE
Pessimistic concurrency, idempotent payment settlement, Redis Bloom filters, bbolt chronological stores, gRPC & PubSub event streams.
02

the expertise // architectural pillars

01SYSTEM PILLAR

High-Concurrency Backend Rails

Goroutines, worker pools, channels, and pessimistic transactional locking (SELECT FOR UPDATE). Systems where double-spending, data drift, or race conditions are mathematically intolerable.

Go 1.25RustPostgreSQLRedisDistributed Ledgers
02SYSTEM PILLAR

Cloud Infrastructure & Orchestration

Certified Kubernetes Administrator (CKA). Provisioning infrastructure as code via Terraform across AWS and GCP. Container hardening, gRPC meshes, and zero-downtime rolling cutovers.

Kubernetes (CKA)TerraformAWSGCP Cloud RunDocker
03SYSTEM PILLAR

Correctness Under Regulatory Scrutiny

Engineered banking integrations under FCA compliance, PCI DSS, and NDPR. Led integration of bank gateways (GTBank Squad), idempotency TTLs, and Bloom filter deduplication.

FCA ComplianceIdempotent APIsBloom FiltersCloudHSM
04SYSTEM PILLAR

Production AI & Agentic Systems

Bridging foundational backend engineering with LLMs: Retrieval-Augmented Generation (RAG), vector embeddings, agentic coding workflows, and natural-language telemetry interfaces.

Agentic WorkflowsVector DBsRAG PipelinesTool Calling
03

track record // production milestones

88k Lines GoVERIFIED

Dwelix Microservice Platform

Lead Software Engineer

Led the team and shipped an 88,000-line Go backend across 12 containerized microservices and a 76-table PostgreSQL schema from an empty repo. gRPC communication with GCP PubSub streaming.

FCA-RegulatedVERIFIED

PCXPay Banking Rails

Senior Software Engineer

Spearheaded the GTBank Squad payment gateway integration under FCA oversight, deploying AWS Lambda microservices for settlement rails across UK, Nigerian, and Canadian accounts.

Healthtech PlatformVERIFIED

Mopcare Healthtech Engine

Technical Lead (Full-Stack)

Direct backend development for a digital health coordination platform serving close to 2,000 elderly patients, with Go microservices, PostgreSQL, and AWS infrastructure.

Fiber & HashiCorpVERIFIED

Open-Source Core Fixes

Security & Concurrency Contributor

Patched a critical CRLF log-injection vulnerability in Go Fiber (#4552) and resolved a weak PRNG seed concurrency bug in HashiCorp's go-retryablehttp (#301).

DIRECT LINE // SHORTKOHDZ

Ready to talk architecture?

Available for high-stakes backend advisory, distributed systems engineering, and infrastructure consulting.