Full Stack Developer

About GoSaif

GoSaif is a technology-driven security marketplace connecting vetted security professionals with clients across Nigeria. We're building a transparent, reliable platform that transforms how security services are delivered.

Our Tech Stack

• Backend: Node.js (Express.js)
• Database: MongoDB
• Infrastructure: Bare metal server, Docker (staging)
• CI/CD: Bitbucket Pipelines
• Others: Firebase, Cloudinary, Postman
• Mobile: React Native (Expo), Tanstack Query

Key Responsibilities

• Design, develop, and maintain Node.js/Express.js backend services and RESTful APIs
• Manage MongoDB database architecture (schema design, indexing, query optimization) and Redis caching
• Handle bare metal server infrastructure (Docker, Nginx configuration)
• Implement and maintain CI/CD pipelines using Bitbucket
• Build and integrate payment processing, user authentication (Firebase), provider verification workflows, and booking systems
• Support React Native mobile app backend needs and Expo deployment processes
• Manage integrations with Firebase, Cloudinary, and third-party payment gateways
• Respond to critical technical issues within 2 hours during business hours
• Conduct code reviews, maintain documentation, and provide weekly progress reports to CEO
• Collaborate with frontend developer and cross-functional teams on feature launches

Required Qualifications

Technical

• 3+ years production experience with Node.js and Express.js
• Strong proficiency with MongoDB and Redis
• Experience managing dedicated/bare metal Linux servers
• Docker proficiency and CI/CD experience (Bitbucket Pipelines preferred)
• RESTful API design and mobile backend experience
• Linux server administration, Nginx/Apache configuration
• Firebase services integration experience
• Git version control and collaborative development workflows

Professional

• Proven track record building scalable backend systems
• Payment gateway integration experience (Paystack, etc.)
• Strong problem-solving and communication skills
• Self-motivated and comfortable with remote work
• Adaptable to evolving startup needs

Preferred Qualifications

• Experience in Nigerian tech ecosystem or fintech/marketplace platforms
• React Native/Expo ecosystem familiarity
• Automated testing frameworks (Jest, Mocha)
• Google Play Console and App Store Connect experience
• Early-stage startup infrastructure experience

Working Arrangements

• Location: Remote (compatible time zones with Lagos, Nigeria)
• Reporting: Weekly progress reports to CEO

What We Offer

• Build critical infrastructure for a mission-driven company
• Ownership over technical architecture decisions
• Direct collaboration with founding team
• Flexible remote environment

To Apply: Submit your resume, portfolio, and a brief note about your experience building Node.js backend systems for mobile applications.