Agbama
Open to leadership & architecture roles

Principal Full Stack Engineer /
Portrait of Ulimhunyie Agbama

Principal Full Stack Engineer with 7+ years of experience leading technology strategy, cloud architecture, and multi-platform engineering (Web, Mobile, Desktop).

Led engineering teams of up to 12 developers while maintaining 99.9% platform availability across microservice architectures.

Leverage AI-assisted development workflows to increase team sprint velocity by 35%.

Creator of Ryda AI, a custom LLM for real-time spatial mapping and route optimization.

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0+
Years building
0K+
Active users served
0
Engineers led
0.0%
Platform uptime
01

Experience

525System

Chief Technology Officer

May 2019 - Sep 2026
Calabar, Nigeria
100K+
Active users
3 → 12
Team growth
-25%
Cloud cost
99.9%
Uptime
  • Direct executive technology strategy, enterprise system architecture, and security governance across cloud software products serving 100K+ active users.
  • Scaled the engineering organization from 3 to 12 developers while establishing CI/CD governance and reducing annual cloud infrastructure overhead by 25%.
  • Spearheaded process automation and security governance frameworks, maintaining 99.9% platform uptime while lowering operational expenditure.
System ArchitectureCI/CDSecurity GovernanceCloudAutomation

Habeep

Development Team Lead & Full Stack Engineer

Mar 2021 - Mar 2025
Lagos, Nigeria
200K+
Daily requests
$50K+
Monthly payments
30K+
Active users
8+
Developers led
  • Led cross-functional engineering teams of 8+ developers building high-concurrency microservices, backend APIs, message queues, and notification engines handling 200K+ daily requests.
  • Integrated secure payment processing handling $50K+ in monthly transaction volume.
  • Built real-time voice and chat messaging supporting 30,000+ active users across Web and Flutter mobile apps.
MicroservicesMessage QueuesFlutterWebSocketsPayments

CVtoCAREER Remote

Senior Backend & Full Stack Developer

Feb 2024 - Jun 2024
Australia
-50%
QA bug-detection cycle
  • Architected backend API microservices, OAuth authentication systems, and dedicated AI manager services.
  • Designed and deployed an automated AI-driven regression testing system with real-time admin reporting, reducing QA bug-detection cycles by 50%.
MicroservicesOAuthAI AgentsRegression Testing

PayMaxNg

Full Stack Developer

Feb 2022 - Sep 2022
Nigeria
<100ms
Latency
25K+
Connections
+40%
Engagement
  • Engineered real-time media streaming backend infrastructure supporting video calls, voice streaming, and WebSockets chat with sub-100ms latency for 25,000+ active user connections.
  • Built multi-platform clients across Quasar/Vue.js mobile and Electron desktop, accelerating cross-device user engagement by 40%.
WebRTCWebSocketsVue.jsQuasarElectron

Valorant VideosRemote

Data Scientist (Contract)

Nov 2022 - Dec 2022
Los Angeles, CA
50K+
Match files
+35%
Query speed
  • Engineered automated telemetry data processing pipelines using Nest.js to parse post-match JSON game records across 50,000+ match files.
  • Optimized data structures and query parsing algorithms, accelerating analytical query speeds by 35% for competitive player analytics.
Nest.jsData PipelinesAlgorithms
02

Projects

Ryda AI

Building

2025 - Present

A specialized road-mapping LLM for real-time spatial mapping and route optimization, fine-tuned on road telemetry across 100K+ spatial points.

  • ▹Fine-tuned with QLoRA parameter-efficient training on PyTorch and HuggingFace, served through Go.
  • ▹Optimized quantization and inference pipelines, cutting routing query latency by 40%.
PyTorchHuggingFaceQLoRAGo

Habeep Platform

2021 - 2025

High-concurrency communication platform with real-time voice and chat, notification engines and secure payments across Web and Flutter.

  • ▹200K+ daily requests
  • ▹30,000+ active users
MicroservicesFlutterWebSockets

525System Cloud Suite

2019 - 2026

Enterprise cloud software products governed end to end: architecture, security and delivery for 100K+ users.

  • ▹99.9% uptime
  • ▹25% lower cloud spend
CloudCI/CDSecurity

AI Regression Testing System

2024

Automated AI-driven regression testing with real-time admin reporting for CVtoCAREER.

  • ▹50% faster QA bug detection
AI AgentsNode.jsOAuth

Realtime Media Backend

2022

Video calls, voice streaming and WebSockets chat backend with sub-100ms latency, plus Quasar and Electron clients.

  • ▹25,000+ live connections
  • ▹+40% cross-device engagement
WebRTCSocket.ioElectron
03

Skills & Technologies

System Architecture & Leadership

Full Stack ArchitectureSystem DesignMicroservicesAPI DesignSecurity Governance

Backend Engineering

Node.jsNest.jsGoRustPythonREST APIs

Frontend Engineering

TypeScriptReact.jsNext.jsVue.jsReduxTailwind CSS

Cross-Platform & Real-Time

FlutterIonicElectronWebRTCWebSocketsSocket.io

Custom LLMs & AI Development

Ryda AIPyTorchHuggingFaceLLM Fine-TuningOpenAI APIGoogle Gemini

AI Productivity & Tooling

CursorGitHub CopilotClaude CodePrompt EngineeringAI Agents

DevOps & Infrastructure

DockerCI/CDCloud HostingProcess AutomationGit
04

Education & Certifications

Miva Open University

BSc. Software Engineering (First Class)

2020 - 2024 · 4.65 - First Class · Nigeria

Completed online/distance degree concurrently alongside full-time executive and engineering leadership roles.

AWS Certified Solutions Architect - Associate

Amazon Web Services · 2024

Multi-region cloud infrastructure, serverless architecture (Lambda, ECS, DynamoDB), and cost-efficient fault-tolerant design.

Certified SAFe Agilist

Scaled Agile · 2023

Enterprise Agile frameworks, Lean-Agile leadership, and Agile Release Train execution.

Node.js Certified Associate

OpenJS Foundation · 2023

Event-loop mechanics, stream processing, microservice API design, and memory profiling.

Certificate of Participation - Mentorship

Vue School · 2023

Vue 3 composition API, state management patterns, and enterprise PWA architecture.

Cisco IOS Networking Certification

Cisco · 2022

Routing protocols, network security, and TCP/IP optimization for real-time socket software.

Front-End Developer Professional Certificate

Meta / Coursera · 2022

Component design systems, WCAG accessibility, state management, and cross-browser performance.

05

Highlights

★Scaled an engineering organization from 3 to 12 developers while cutting cloud costs by 25%.
★Increased team sprint velocity by 35% with AI-assisted development workflows.
★Created Ryda AI, a custom road-mapping LLM that cut routing latency by 40%.
★Graduated First Class (4.65) while working full-time in executive engineering roles.
Languages: English (Native / Bilingual)
06

Contact

Let's build something reliable.

Architecture reviews, engineering leadership, real-time systems or custom LLM work. I reply fast.