Abakwe Carrington — Software Engineer & Systems Architect
Abakwe Carrington (Cybersage / Donrington) is an Infrastructure & Systems Architect and Senior Software Engineer based in Lagos, Nigeria, working with remote clients worldwide across the United States, United Kingdom, Canada, Australia, and Europe.
Core Stack & Engineering Disciplines
AWS Cloud Infrastructure, Docker Containerisation, Kubernetes, Terraform Infrastructure as Code, Go (Golang), Python Django, PostgreSQL, Redis, Microservices System Design, Next.js, and TypeScript.
CybersagePortfolio / 2026Cover sheet / 00
Infrastructure & systems architectLagos, Nigeria / UTC+1
ABAKWECARRINGTON
Engineer who architects and designs the system behind the screen.
Architect systems. Ship reliably. Scale quietly. Own the whole stack.
Under the hood
Sevenlayersofaproductionsystem.
One real decision per layer, and the client build where it shipped.
1
LAYER 01 / 07CDN · WEB VITALS
Edge & Delivery
Sub-second loads aren’t an accident — edge caching and Core Web Vitals get tuned before a single feature ships.
RESULT
98/100 Lighthouse, sub-1s LCP
SHIPPED IN
KRK Motors, Samdus
2
LAYER 02 / 07AUTH · RATE LIMITING
API Gateway
Every public endpoint gets rate-limiting and circuit breakers before it gets a feature.
RESULT
Payment APIs stopped cascading-failing entirely
SHIPPED IN
Autoboy Express
3
LAYER 03 / 07GO · DJANGO
Services
Go for throughput, Django for velocity — picked per service, not per habit.
RESULT
30% performance gain from re-architecting this layer
SHIPPED IN
NextGen Robotics
4
LAYER 04 / 07REDIS
Cache
I design invalidation before I design the cache.
RESULT
30% faster DB responses under peak load
SHIPPED IN
Autoboy Express
5
LAYER 05 / 07POSTGRESQL
Database
pg_notify for live sync, rewritten queries for everything else.
RESULT
p95 latency cut hard once the slow paths were found
SHIPPED IN
Dejaii
6
LAYER 06 / 07RBAC · ENCRYPTION
Access & Compliance
Role-based access on every layer, encrypted by default — not bolted on after a client asks.
RESULT
Unauthorized-access surface down 60%
SHIPPED IN
RecoverDerm
7
LAYER 07 / 07CI/CD · ZERO-DOWNTIME
Deploy & Monitor
Zero-downtime releases and CI/CD from day one, not after the first bad deploy.
RESULT
Deployment time cut 45%
SHIPPED IN
NextGen Robotics
FIG. A · SYSTEM STACK
01 Edge & Delivery
02 API Gateway
03 Services
04 Cache
05 Database
06 Access & Compliance
07 Deploy & Monitor
SHEET
03
LAYER
01/07
SCALE
N.T.S.
LAYER 01 / 07CDN · WEB VITALS
Edge & Delivery
Sub-second loads aren’t an accident — edge caching and Core Web Vitals get tuned before a single feature ships.
RESULT
98/100 Lighthouse, sub-1s LCP
SHIPPED IN
KRK Motors, Samdus
AboutSHEET 04 / PROFILE
Ibuildthesystembehindthescreen.
“I architect systems that don’t just work — they scale, survive failure, and stay clean under pressure.
A software engineer based in Lagos, Nigeria — 5+ years designing and running production systems for global clients: multi-tenant compliance platforms, HIPAA medical portals, high-traffic marketplaces. I own the system end-to-end: architecture, infrastructure, backend, delivery.
Core: AWS, Docker, Go, Django, PostgreSQL, Redis, CI/CD. Fluent in Next.js for when the system needs a face. I care about the whole system — not just the feature.
Data models, service boundaries, API contracts, failure modes, and capacity planning — mapped before a line of production code. I deliver architectures teams can build on for years, with documentation that survives handover.
System Design
Multi-Tenant
Event-Driven
Capacity Planning
PROOF
Multi-tenant workspace isolation enforced with row-level security.
Container orchestration, GitHub Actions pipelines, zero-downtime deploys, environment management. I build infrastructure your team can actually understand — and rebuild from a single repo.
Database query analysis, p95 latency hunting, caching architecture review, Core Web Vitals improvement. I find bottlenecks and eliminate them with evidence.
Next.js front-ends, e-commerce with Stripe/Paystack, real-time dashboards — built on top of the architecture, not instead of it. From zero to production, end to end.
Next.js
React
Stripe
PostgreSQL
PROOF
Nine service pages, a scroll-driven Mapbox globe and a Turnstile-validated contact form.
We start with the problem, not the tech. I map your goals, users, and constraints, then turn them into a scoped plan with clear deliverables — so you know exactly what you’re getting and when.
GOALS · SCOPE · TIMELINE
STEP 02WEEK 1
02
Architecture
I design the system before writing a line of production code — data models, API contracts, infrastructure, and security boundaries. The result is software that scales cleanly instead of collapsing under its own weight.
SYSTEM DESIGN · DATA MODELS · SECURITY
STEP 03CORE SPRINT
03
Build & Ship
Tight, visible iterations. You see working software early and often, with weekly check-ins and a live staging URL. Momentum over perfection — high-impact features first, polished relentlessly.
ITERATIVE · WEEKLY DEMOS · STAGING
STEP 04GO-LIVE +
04
Launch & Support
Zero-downtime deployment, performance tuning, and a hand-off you can actually maintain. I stay on after launch to monitor, fix, and extend — your platform keeps getting better, not stale.
DEPLOY · MONITORING · HANDOVER
TestimonialsSHEET 11 / EXHIBITS · 06
Whatclientsandteammatessay.
EXHIBIT 01 / 06SAMDUS OIL & GAS
VERIFIED CLIENT01 / 06
“It has been quite a pleasure and delightful experience working with you. Your professionalism, dedication, commitment, enthusiasm, passion, and especially patience are all commendable.”
Abakwe Carrington (also known as Cybersage or Donrington) is an Infrastructure & Systems Architect and Senior Software Engineer based in Lagos, Nigeria. Over the past 5+ years, he has designed, built, and operated high-availability distributed systems, cloud infrastructure (AWS, Docker, Kubernetes, Terraform), and Go & Django backends for global clients across North America, Europe, Australia, and Africa.
02 · SERVICESWhat engineering services does Cybersage offer?
Abakwe Carrington specializes in four core areas: 1) Systems Architecture & System Design (blueprinting microservice boundaries and database schemas), 2) Cloud Infrastructure & DevOps (AWS setups, IaC with Terraform, Docker containerisation, and automated zero-downtime CI/CD pipelines), 3) Distributed Backend & API Engineering (Go and Django services with rate-limiting and caching), and 4) Full Stack Web Engineering (high-performance Next.js and React web apps).
03 · LOCATION & REMOTEDoes Abakwe Carrington work with international clients remotely?
Yes, absolutely. While based in Lagos, Nigeria (WAT / GMT+1), Abakwe works seamlessly with startups, scale-ups, and enterprises worldwide across US, UK, European, Canadian, and Australian time zones.
04 · FEATURED PROJECTWhat is Wytnest and how does it work?
Wytnest is a video and written testimonial platform built by Abakwe Carrington. It isolates embeddable video widgets using Shadow DOM technology to guarantee zero style leakage on client websites. It features automated AI speech-to-text transcription to convert video reviews into searchable quotes, and supports multi-currency billing (USD & NGN) via Stripe and Paystack.
05 · TECHNOLOGY STACKWhat is Abakwe Carrington’s primary technology stack?
Core stack includes AWS, Docker, Kubernetes, Terraform, Go (Golang), Python (Django, FastAPI), PostgreSQL, Redis, Next.js, React, and TypeScript. He also has expertise in WebRTC streaming, OpenCV computer vision, HIPAA-compliant security architecture, and timeseries data.
06 · ENGAGEMENTHow can I hire or contact Abakwe Carrington for a project?
You can reach out directly via email at hello@cybersage.dev, connect on LinkedIn or Twitter (@CarlSwitch_CHUG), or send a message through the contact section below. He is available for remote full-time engineering roles, contract infrastructure work, and system architecture consulting.
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