Job Description

MLabs is hiring a Senior Backend Engineer to support the development of scalable backend systems powering multi-chain DeFi infrastructure. This role focuses on building secure, high-performance APIs that enable seamless access to on-chain liquidity across major blockchains for financial institutions and fintech companies.

Location: Nigeria (Remote)
Salary: €90,000 – €130,000 per year
Experience Level: Senior / Lead

Current Tech Stack

• Node.js with TypeScript (Dockerized environment)
• MongoDB and Redis
• ethers.js for blockchain integrations
• GitHub, Kubernetes, AWS, and Cloudflare (GitOps CI/CD chain)

Key Responsibilities

• Lead the architecture, design, and development of scalable backend systems and APIs
• Maintain high coding standards through structured code reviews and best practices
• Optimize system performance by identifying bottlenecks and improving algorithms
• Implement monitoring tools, debugging systems, and comprehensive test suites (unit, integration, and E2E)
• Provide mentorship and technical guidance to junior developers
• Analyze complex technical challenges and deliver reliable, production-ready solutions

Requirements

• Must be based in the EMEA region
• Strong professional experience with TypeScript and Node.js
• Proven production experience working with the Stellar network
• Solid understanding of the EVM ecosystem or other blockchain environments (plus)
• Extensive experience in a senior or lead-level backend engineering role
• Strong knowledge of MongoDB, Redis, caching systems, and distributed system architecture
• Hands-on experience with testing frameworks and quality assurance practices
• Excellent written and verbal English communication skills
• Ability to work independently in a remote-first environment
• Bachelor’s or Master’s degree in Computer Science (preferred)
• Experience with Stellar Soroban smart contracts (bonus)

Benefits

• Competitive salary range of €90K – €130K annually
• 30 days paid time off
• Flexible working hours
• Company equity participation from Day 1
• Annual team offsites (previous locations include Thailand, Vietnam, and Marrakech)
• Choice of work equipment
• €1,000 annual personal development budget (after 6 months)
• €1,000 one-time remote setup or coworking budget