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I'm a Senior Python Backend Engineer with 5+ years of experience building scalable APIs, automation pipelines, and AI-integrated systems using Python, Django Rest Framework/Flask/FastAPI and PostgreSQL. I'm passionate about building high-performance, test-driven systems that serve real users reliably at scale. Currently working on ThirdEngineer, an AI developer operations platform that monitors production logs, detects issues, and suggests automatic fixes using LangChain and LLM-based reasoning. I've built full-stack web & mobile applications like Shuganetwork, which I've integrated payment gateway systems such as Stripe, PayPal, and Paystack. Other live web applications I've built for clients includes secure wallet system for transactions and multiple payments gateways, altogether I have experienced building real world applications with over 10+ payment gateways.…I'm a Senior Python Backend Engineer with 5+ years of experience building scalable APIs, automation pipelines, and AI-integrated systems using Python, Django Rest Framework/Flask/FastAPI and PostgreSQL. I'm passionate about building high-performance, test-driven systems that serve real users reliably at scale. Currently working on ThirdEngineer, an AI developer operations platform that monitors production logs, detects issues, and suggests automatic fixes using LangChain and LLM-based reasoning. I've built full-stack web & mobile applications like Shuganetwork, which I've integrated payment gateway systems such as Stripe, PayPal, and Paystack. Other live web applications I've built for clients includes secure wallet system for transactions and multiple payments gateways, altogether I have experienced building real world applications with over 10+ payment gateways.

EPHRAIM DANIEL FOLMI

Back-End Developer, Web Developer, Full Stack Developer, +2

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I'm a Senior Python Backend Engineer with 5+ years of experience building scalable APIs, automation pipelines, and AI-integrated systems using Python, Django Rest Framework/Flask/FastAPI and PostgreSQL. I'm passionate about building high-performance, test-driven systems that serve real users reliably at scale. Currently working on ThirdEngineer, an AI developer operations platform that monitors production logs, detects issues, and suggests automatic fixes using LangChain and LLM-based reasoning. I've built full-stack web & mobile applications like Shuganetwork, which I've integrated payment gateway systems such as Stripe, PayPal, and Paystack. Other live web applications I've built for clients includes secure wallet system for transactions and multiple payments gateways, altogether I have experienced building real world applications with over 10+ payment gateways.…I'm a Senior Python Backend Engineer with 5+ years of experience building scalable APIs, automation pipelines, and AI-integrated systems using Python, Django Rest Framework/Flask/FastAPI and PostgreSQL. I'm passionate about building high-performance, test-driven systems that serve real users reliably at scale. Currently working on ThirdEngineer, an AI developer operations platform that monitors production logs, detects issues, and suggests automatic fixes using LangChain and LLM-based reasoning. I've built full-stack web & mobile applications like Shuganetwork, which I've integrated payment gateway systems such as Stripe, PayPal, and Paystack. Other live web applications I've built for clients includes secure wallet system for transactions and multiple payments gateways, altogether I have experienced building real world applications with over 10+ payment gateways.

Available to hire

I’m a Senior Python Backend Engineer with 5+ years of experience building scalable APIs, automation pipelines, and AI-integrated systems using Python, Django Rest Framework/Flask/FastAPI and PostgreSQL.

I’m passionate about building high-performance, test-driven systems that serve real users reliably at scale. Currently working on ThirdEngineer, an AI developer operations platform that monitors production logs, detects issues, and suggests automatic fixes using LangChain and LLM-based reasoning.

I’ve built full-stack web & mobile applications like Shuganetwork, which I’ve integrated payment gateway systems such as Stripe, PayPal, and Paystack. Other live web applications I’ve built for clients includes secure wallet system for transactions and multiple payments gateways, altogether I have experienced building real world applications with over 10+ payment gateways.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Backend Engineer at Candleweb

August 1, 2023 - November 13, 2025

Scaled backend trading infrastructure from handling 5 trades/minute to 2,000+ trades/minute, reducing latency by 95%. Strengthened system reliability and data integrity across live/demo environments. Implemented secure cookies for token-based authentication. Designed and developed new REST API endpoints and optimized existing ones for performance and maintainability. Built unit tests for API endpoints and introduced request throttling and idempotency keys to prevent duplicate transactions. Developed an Excel export feature in the admin panel. Optimized bot app queries and introduced a Redis-based caching system to scale from 5 trades/minute to hundreds concurrently. Separated demo and live environments per user. Designed and deployed an Analyst Dashboard for real-time monitoring of AI trade performance. Built a secure log management system for production debugging. Integrated Kucoin API and WebSocket streams for real-time market data. Led a small team of 3 developers to implement CI/CD

Backend Engineer at Shuga Network

January 1, 2024 - November 13, 2025

Improved transaction success rate and API uptime to 99.9% through optimized gateway integrations. Reduced page load times by 40% via endpoint and query optimization. Enabled seamless multi-vendor withdrawals with instant wallet reconciliation. Strengthened maintainability and scalability across environments. Designed and implemented secure wallet and withdrawal systems with real-time balance updates using atomic transactions. Integrated Stripe, PayPal, and Paystack for checkout, refunds, and webhooks. Built custom admin tools for event organizers and user wallets. Implemented secure authentication and password update APIs with JWT and DRF serializers. Contributed to a modern admin dashboard for analytics, dynamic role management, and production-ready Flutter app endpoints. Maintained code quality with Flake8 and CI/CD test automation.

Backend Developer at InternPulse

March 1, 2024 - March 1, 2024

Enhanced project delivery speed by introducing structured API endpoints and automation features. Improved backend reliability and maintainability through clean modular design and version-controlled workflows. Strengthened team collaboration with CI/CD integrations and Agile sprint practices. Built a fully functional invoice management API and contributed to a certificate management system for interns. Mentored interns on backend best practices and API design principles. Optimized database models and serializers for faster responses under concurrency.

Freelance Software Engineer at Newway, Nigeria

January 1, 2024 - November 13, 2025

Improved platform uptime from 97% to 99.9% through optimized queries. Reduced payment failure rate by 30% with improved gateway retry logic. Delivered a production-ready VTU platform for scalable digital service operations. Enabled real-time wallet transactions and service payments with minimal latency. Designed secure wallet and payment APIs using Django and Django REST with test-driven development. Implemented downloadable PDFs and seamless transaction experiences. Built a full-stack Virtual Top-Up and Verification platform with a secure wallet system for instant transactions and integrated electricity bills, cable TV subscriptions, exam pins, airtime, and data bundles.