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Gabriel User

@conradgabe

Software engineer building scalable backend systems and AI-integrated production APIs across fintech, SaaS, and real estate.

Nigeria

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What I'm looking for

I’m looking to build scalable backend platforms and AI-integrated production APIs—owning architecture, shipping reliable microservices, and partnering cross-functionally to deploy fast with clean systems in production.

I’m a Software Engineer with 5+ years of experience building scalable backend systems, AI-integrated platforms, and production APIs across fintech, SaaS, and real estate. I bring deep expertise in Python and C#, and I focus on shipping backend services that stay clean, maintainable, and reliable under real usage.

In recent roles, I’ve architected production backends from the ground up and led AI model integration for live platforms—deploying and orchestrating LLM, STT, TTS, and vision models on GPU servers. I’ve also engineered real-time AI conversation experiences using WebSockets, while coordinating prompt engineering, context-window strategy, and multi-model performance in production.

I’m hands-on across the full development lifecycle, from architecture design through deployment—using Docker, Kubernetes, and CI/CD to reduce incidents and speed releases. I’ve integrated billing infrastructure (including Stripe subscriptions and webhooks) with enterprise-grade access controls like RBAC, SSO, and audit logging, and I enjoy collaborating across disciplines to deliver durable systems.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

Lustrew Dynamics

Dec 2025 - Present (7 months)

Architected and owned the full backend of a production SaaS platform using Python and FastAPI, including server-side logic, data models, and service integrations. Led AI model integration (LLM, STT, TTS, vision), built a real-time WebSocket AI conversation system, integrated Stripe billing with an enterprise RBAC/SSO access layer, and established Docker/Kubernetes-based CI/CD with near-zero downti

Python fastAPI Integrating AI Models LLM Integrations Prompt Engineering AI Agents AI STT TTS WebSockets RBAC SSO Audit Logging CI CD Docker Kubernetes Release Engineering API Integration

Software Engineer

Codeware

Feb 2025 - Dec 2025 (10 months)

Developed and maintained server-side applications in C# and ASP.NET Core, redesigning architecture to support multi-industry SaaS expansion and reduce integration time. Optimized database schemas and query logic to improve response times, implemented cross-tenant functionality, and containerized backend services with Docker to standardize releases and reduce deployment cycles.

C#ASP.NET Core Repositories Interfaces Database Schema Design SQL Query Optimization Docker backend architecture Software Design Patterns

Backend Engineer

Carbonnote

Dec 2024 - Apr 2025 (4 months)

Led development of a microservices architecture for an AI research platform, reducing downtime and improving deployment speed. Integrated AI conversational models with the ML team, improved database retrieval performance, and produced API documentation using Swagger and Redoc.

Microservices AI Integration Database Optimization Security Monitoring Swagger API Documentation

Backend Engineer

Ajay Tech

Dec 2023 - Jun 2024 (6 months)

Built and deployed an AI-powered fintech chatbot in Python to automate payment record management and eliminate manual data entry. Integrated NLP and fine-tuned ML models for financial domain accuracy improvements, developed API endpoints for payment processing and transaction management, and performed testing to ensure reliable financial workflows.

Python Chatbot NLP Fine Tuning Payment Integration Testing Debugging

Technical Writer

Chimoney

Oct 2022 - Oct 2023 (1 year)

Authored detailed technical documentation for a financial services API, including explanations, code samples, and integration best practices. Developed step-by-step how-to guides to simplify API integration and reduce onboarding friction for external teams.

Technical Writing API Documentation Integration Guides

Backend Engineer

HNG Internship

Oct 2022 - Dec 2022 (2 months)

Developed predictive stock algorithms in Python to improve financial forecasting for a fintech stock recommendation application. Designed backend architecture for secure financial dataset processing and integrated Stripe payments, contributing across requirements, design, implementation, testing, and deployment.

Python Predictive Analytics Machine Learning backend architecture Stripe SDLC Testing Deployment

Full Stack Developer

Zuri Team

Mar 2021 - Mar 2022 (1 year)

Led a development team building an image resizing embed application, overseeing architecture, team coordination, and milestone delivery. Managed the full project lifecycle with hands-on oversight to ensure resource allocation and timely delivery across stages.