Senior Backend Engineer - Node.js/NestJS (Multi-Tenant SaaS Platform)

About the Role

Enakl builds the digital infrastructure for shared commuting in African cities. Our platform currently handles 30K+ monthly bookings across B2B and consumer segments and is entering a critical transition toward a multi-tenant SaaS architecture.

This is a senior systems role focused on ownership, refactoring under constraint, and reducing systemic risk in production. The platform is expected to grow 2–3× in the coming phases, increasing pressure on data integrity, tenant isolation, access control, and backend correctness.

Key Responsibilities

Backend Architecture & System Ownership

• Own critical backend domains and enforce architectural decisions
• Drive large-scale refactorings while keeping production stable
• Review and validate high-impact backend changes
• Act as a technical reference for backend correctness and quality

Multi-Tenant SaaS Transition

• Design and implement tenant data isolation strategies
• Strengthen access control models (ACL, permissions, roles)
• Prepare backend systems for SaaS-scale usage patterns
• Prevent cross-tenant data leakage at all layers

Complex Business Logic

• Work on transportation and booking workflows
• Handle stateful, transactional, and time-sensitive logic
• Maintain correctness across B2B and consumer use cases
• Ensure data integrity across payments, bookings, and lifecycle events

Database, Performance & Data Integrity

• Own complex PostgreSQL relational models
• Design safe schema evolution and migration strategies
• Optimize queries and critical performance paths
• Ensure transactional consistency under concurrency and load

Reliability & Production Discipline

• Investigate and resolve production issues methodically
• Improve observability, logging, and diagnostics
• Anticipate failure modes and design mitigation strategies
• Raise the bar on backend reliability and operational standards

Technical Leadership & Standards

• Lead backend code reviews and enforce quality standards
• Mentor engineers through concrete technical feedback and example
• Raise testing, reliability, and production discipline across the team
• Share knowledge through documentation and architectural discussions

Required Qualifications

• 6+ years of backend engineering experience
• Strong expertise in Node.js / TypeScript
• Solid experience with NestJS or equivalent backend frameworks
• Strong SQL skills with PostgreSQL
• Experience with complex relational data models
• Experience designing or maintaining multi-tenant systems, or strong intuition for tenant isolation, data boundaries, and access control
• Proven experience refactoring live production systems
• Strong testing discipline (unit and integration testing)

Strong Plus

• SaaS platform experience
• Access control systems (ACL, RBAC, ABAC)
• Database performance tuning and query optimization
• Event-driven systems or background job processing
• AWS infrastructure experience
• Experience stabilizing systems in high-growth or constrained environments

Your Team

You will join a lean, senior engineering team operating a live production system. You will work closely with the CTO on architecture, trade-offs, and sequencing, and act as a backend spine alongside other experienced engineers. The team values calm execution, clear ownership, and sound engineering judgment under constraint.

Benefits

• Work on real SaaS-scale backend complexity
• Play a central role in a multi-tenant SaaS transition
• High ownership and technical impact
• Direct collaboration with senior technical leadership
• Engineering culture focused on clarity, calm execution, and excellence
• Remote friendly team
• Long-term role with ownership over core backend systems
• Build systems used daily by thousands of users

Recruitment Process

1. Screening Call with CTO (20-30 minutes)
2. Take Home Technical Challenge (4-6 hours)
3. Technical Interview (~1 hour)
4. Founder Interview - On-Site (Casablanca)