Hi, I'm Onah Stephen

Fullstack Engineer, Frankfurt - Germany

HTM Hydro Technology Motors

August 2025 - Present

• Designed and maintained RESTful plus GraphQL APIs with NestJS, Node.js, and Python to streamline system integrations.
• Implemented Dockerized CI/CD pipelines backed by Git-based workflows, improving deployment reliability and compliance.
• Optimized backend services powered by Python, Django, and Node.js, reducing API response latency by 30%.
• Deployed resilient workloads on AWS (S3, Lambda, EC2, RDS) to deliver 99.9% availability.
• Hardened SQL (MySQL, PostgreSQL) and MongoDB databases with indexing strategies that accelerated retrievals by 40%.
• Automated quality gates with GitHub Actions, Jest, and integration tests to secure every release.

Key Technologies: NestJS, Node.js, Python, Django, AWS, Docker, GraphQL, MongoDB, PostgreSQL, GitHub Actions, Jest

Fullstack Engineer (Contract), Remote - Nigeria

Gurugeeks

April 2025 - August 2025

• Co-created a feature-rich LMS built with Next.js, Tailwind CSS, Node.js, and TypeScript, complete with secure payments, RBAC, chat, and scheduling for 500+ active users.
• Partnered with cross-functional teams to launch scalable HRM and CRM SaaS experiences anchored in cloud-native best practices.
• Defined system architecture plus database schemas with MongoDB and PostgreSQL, ensuring consistently high throughput.
• Championed Agile rituals, code quality reviews, and fast iterations to keep milestones on track.
• Helped unlock new subscription revenue as the LMS onboarded schools through seamless integrations.

Key Technologies: Python, FastAPI, Tailwind CSS, Next.js, Node.js, TypeScript, Amazon S3, Paystack, PostgreSQL, MongoDB, RESTful APIs, AWS, Tortoise ORM, Mongoose

Fullstack Developer, Remote - Spain

Thirdwish

November 2024 - January 2025

• Designed and implemented RESTful and GraphQL APIs using NestJS, Node.js, and Python, improving system efficiency and performance.
• Leveraged AWS Lambda, Amazon S3, and EC2 to build serverless and containerized solutions, reducing operational costs and improving scalability.
• Designed and maintained SQL and NoSQL databases (PostgreSQL, MySQL, MongoDB) to enhance data storage efficiency and retrieval speeds.

Backend Developer, Remote - Nigeria

Hupdev

June 2022 - November 2024

• Developed and optimized backend systems using Python, Django, and Node.js, reducing API response time by 30%
• Designed and integrated RESTful APIs and GraphQL endpoints, enhancing frontend-backend communication.
• Optimized database performance for SQL, PostgreSQL, and MongoDB, improving query efficiency by 50%.

Backend Developer, Remote - Nigeria

Brimble

April 2023 - Feburary 2024

• Developed and Maintained Scalable Backend Systems: Engineered robust backend solutions using Node.js and TypeScript, ensuring optimal performance, maintainability, and scalability.
• Designed and Optimized APIs: Built and maintained RESTful and GraphQL APIs, seamlessly integrating with frontend applications and third-party services to enhance functionality.
• Enhanced Database Performance and Security: Managed SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases, implementing indexing and query optimization to improve data retrieval speed by 40%.

Backend Developer, Remote - United States

RE Land

Feburary 2022 - August 2023

• Led backend development using TypeScript, improving code maintainability and reducing bugs by 40%.
• Built CI/CD pipelines for automated deployment, reducing deployment time by 60%.
• Developed a microservices-based architecture, improving system scalability and modularity.