Emmanuel AkinroyeSenior Full-Stack Engineer

Hello, I'm

Emmanuel AkinroyeSenior Full-Stack Engineer

I design and ship complex production SaaS: multi-tenant platforms, real-time systems and payments infrastructure, built with TypeScript, React, Node.js and PostgreSQL. Fully remote, working with teams in any time zone.

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7+Years shipping
$300k+Payments processed
99.9%Uptime delivered
Portrait of Emmanuel Akinroye
Available for select engagements

Core stack in production

  • TypeScript
  • React
  • Next.js
  • Node.js
  • NestJS
  • PostgreSQL
  • AWS
  • Docker

About Me

Building Systems That
Carry Real Weight

I'm a senior full-stack engineer with over seven years building production software that real businesses run on. Recent work is healthcare SaaS for a UK care provider, covering scheduling, multi-tenant access control and audit logging over sensitive personal data, alongside payments platforms and real-time collaboration infrastructure.

I work directly with founders on live codebases, own architecture end to end, and stay hands-on from schema design through to CI/CD and production monitoring. I work fully remote with teams anywhere in the world. Today I serve as CTO at Usefleet, where I lead engineering delivery while still writing the code.

  • 7+ years full-stack engineering
  • Multi-tenant SaaS architecture
  • Founding & principal engineer roles
  • Fully remote, clients worldwide
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My Services

What I Can Do For You

Full-Stack Product Engineering

End-to-end delivery from schema to UI: React and Next.js frontends on Node.js, NestJS and PostgreSQL backends, shipped to production.

Multi-Tenant SaaS Architecture

Tenant isolation, RBAC and permission systems, row-level security, workflow engines and audit logging over sensitive data.

Real-Time Systems

WebSocket infrastructure for collaborative editors, live dashboards and messaging, running 1,000+ concurrent sessions at sub-50ms latency.

Payments & Integrations

Stripe and Paystack flows, multi-currency wallets, settlement reconciliation, KYC/AML and reliable third-party API integration.

Toolkit

Technologies I Work With

Languages

  • TypeScript
  • JavaScript
  • Python
  • Java
  • C#
  • Rust
  • SQL
  • Solidity

Frontend

  • React
  • Next.js
  • Redux
  • Tailwind CSS
  • WebSockets
  • Responsive UI

Backend & Serverless

  • Node.js
  • NestJS
  • Express
  • ASP.NET Core
  • GraphQL
  • Microservices
  • Event-driven

Data

  • PostgreSQL
  • Supabase
  • MongoDB
  • Redis
  • SQL Server
  • Partitioning & RLS

Security & Auth

  • RBAC
  • Row-level security
  • Audit logging
  • Compliance
  • Sensitive data

Cloud & DevOps

  • AWS (EC2, S3, RDS, Lambda)
  • Docker
  • GitHub Actions
  • DigitalOcean
  • Monitoring

Career

Where I've Shipped

Mar 2026 - Present · Remote

Chief Technology Officer & Full-Stack Engineer

Usefleet

  • Own technical direction and architecture, leading engineering delivery end to end across backend, product and integration surfaces.
  • Define system architecture, module boundaries and delivery roadmap; set code review, release and testing standards.
  • Build and direct a small engineering team while staying hands-on in day-to-day delivery.
Jun 2025 - Jun 2026 · Remote

Principal Engineer

Kinem Labs (BuildArena)

  • Architected a full production platform covering project and workspace state, build orchestration and authenticated API surfaces.
  • Built real-time multiplayer collaboration over WebSockets, synchronising editor, canvas and output state across concurrent users.
  • Delivered a live visualisation layer rendering program structure and state relationships in real time as users type.
  • Ran the full lifecycle: self-hosted Docker infrastructure (Dokploy, Traefik), GitHub Actions CI/CD and PostHog analytics.
Jan 2026 - Jun 2026 · Contract, Remote

Senior Full-Stack Engineer

Ridgeway, Texas, United States

  • Built an AI-powered natural-language-to-action system translating user input into executed operations across the stack.
  • Implemented a secure payment system with confidentiality guarantees across backend and frontend.
  • Provisioned AWS EC2 infrastructure with end-to-end GitHub Actions CI/CD.
  • Delivered a solution that processed over $300,000 in production transaction volume.
Jul 2025 - Dec 2025 · Contract, Remote

Senior Full-Stack Engineer

Timglobal, UK (Healthcare SaaS)

  • Delivered features across a live multi-tenant healthcare platform serving care coordinators, field staff and providers.
  • Designed staff management and scheduling covering shift allocation, availability and capacity across teams and roles.
  • Modelled multi-tenant data isolation and RBAC in PostgreSQL over sensitive operational data.
  • Built audit logging and compliance reporting meeting UK care-sector data-handling requirements.
Jul 2024 - Dec 2024 · Contract, Remote

Senior Full-Stack Engineer & Tech Lead

Cryptrapay

  • Led architecture and delivery of a production payments and settlement platform from zero as founding engineer.
  • Built a Node.js and NestJS backend for multi-currency wallets, merchant onboarding and real-time reconciliation.
  • Settlement reconciliation kept ledger state consistent across systems, reducing payment failures by 35%.
Mar 2023 - Jun 2024 · Contract, Remote

Senior Backend Engineer

Allark

  • Sole engineer responsible for architecture and end-to-end delivery, shipping from zero to production.
  • Engineered a WebSocket layer supporting 1,000+ concurrent sessions at sub-50ms latency.
  • Achieved 99.9% availability through circuit breakers and fault tolerance across external integrations.
  • Built a type-safe React frontend for complex real-time workflows, reducing runtime errors by 70%.
2019 - 2023 · Remote

Earlier Engineering Roles

Neatio · Blockride · Bole · Remax Real Estate (Malta)

  • Led full-stack delivery of a marketplace platform, cutting fraudulent transactions by 90% with multi-step verification and atomic transaction logic.
  • Delivered API infrastructure and documentation that reduced third-party integration time by 60%.
  • Built a React, Next.js and Node.js property platform serving 1,000+ monthly active users on PostgreSQL.

Featured Projects

Selected Work

View GitHub
Editor
Canvas
Output

Real-time multiplayer workspace

BuildArena

Collaborative build platform with WebSocket state sync across concurrent users and a live visualisation layer rendering program structure as you type.

TypeScript / WebSockets / Docker / PostgreSQL

buildarena.dev

Shift allocation & capacity

Healthcare SaaS Platform

Multi-tenant care platform with scheduling, RBAC, real-time messaging and compliance-facing audit logging over sensitive personal data.

Next.js / NestJS / PostgreSQL RLS / Redis

timglobal.uk
SPF record
DKIM signature
DMARC policy

Authentication and reputation checks

Hookroast

Pre-send deliverability platform for cold email: spam scoring on draft content, recipient verification, domain reputation and blocklist monitoring, and SPF, DKIM and DMARC record checks.

Email infrastructure / DNS / SMTP / Webhooks

hookroast.com
Merchant settlement
Wallet · multi-currency
Reconciliation

Ledger consistency across systems

Cryptrapay

Payments and settlement platform built from zero, with multi-currency wallets, merchant onboarding and reconciliation that cut payment failures by 35%.

Node.js / NestJS / React / Stripe & Paystack

cryptrapay.com

Let's Work Together

Have a platform to build or a codebase that needs a senior pair of hands? I'd love to hear about it.

Get In TouchDownload CV