Backend Engineer (Node.js/TypeScript) at Tezza Business Solutions Ltd

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• • Backend Engineer (Node.js/TypeScript) at Tezza Business Solutions Ltd
  • View Jobs in Consulting / View Jobs at Tezza Business Solutions Ltd

  Posted: Jul 3, 2026

  Deadline: Not specified

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  Tezza”(te-zza) from the Italian word "Completezza” embodies our commitment to providing IT and Business Solutions that are comprehensive, through and complete. We specialize in providing personalized Software Quality Assurance and Testing Services within a streamlined, phased delivery channel. With a primary goal of putting technological solu...
  

  Backend Engineer (Node.js/TypeScript)

  • Job Type Full Time , Hybrid
  • Qualification
  • Experience 4 years
  • Location Lagos
  • Job Field ICT / Computer&nbsp

  About the Job

  • We are building on top of the IDURAR Open-Source foundation (MERN Stack) and transforming it into a scalable, multi-tenant SaaS capable of handling millions of transactional and behavioral data points across the continent.

  The Role

  • We are looking for a Mid to Senior Backend Engineer to join our hybrid work team and to own the architecture of our "Growth Engine."
  • You will move beyond simple CRUD APIs to build complex Event-Driven Systems, Offline Sync Protocols, and High-Volume Marketing Queues.
  • You will work closely with the Solution Architect and the rest of the development team to ensure our platform is fast, resilient in low-bandwidth environments, and capable of delivering real-time Customer Intelligence (CI).

  Key Responsibilities

  • Core Architecture: Lead the migration of our Modular Monolith (Express.js) towards a structured, Service-Oriented architecture (NestJS/TypeScript) to support scale.
  • High-Volume Queues: Design and implement robust background job processing using Redis & BullMQ to handle marketing blasts (SMS/WhatsApp/Email) without blocking the main API thread.
  • Offline Synchronization: Build the "Sync Service" that handles data conflict resolution and delta updates between our MongoDB backend and the React Native (WatermelonDB) mobile app.
  • Customer Intelligence Engine: Write complex MongoDB Aggregation pipelines to calculate real-time RFM (Recency, Frequency, Monetary) scores and Customer Health metrics.
  • Integrations: Build secure, scalable integrations with third-party providers including Paystack/Flutterwave (Payments), Meta Graph API (Social), and Africa’s Talking (SMS).
  • API Design: Develop flexible GraphQL and REST endpoints that allow our frontend to fetch "Customer 360" data efficiently.
  • Quality & Security: Enforce TypeScript strict typing, write comprehensive unit/integration tests (Jest), and ensure multi-tenant data isolation at the middleware level.

  What We Are Looking For
  Technical "Must Haves":

  • 4+ years of backend engineering experience with Node.js.
  • TypeScript Expert: You don't just use any; you understand generics, interfaces, and strict type safety.
  • Database Mastery: Deep experience with MongoDB (Schema design, Indexing, and Aggregation pipelines). You know how to model data for performance.
  • Message Queues: Proven experience with Redis (caching and queuing with BullMQ/Sidekiq equivalent).
  • API Standards: Strong grasp of RESTful principles and GraphQL schema design.

  Technical "Nice to Haves":

  • Experience with NestJS framework.
  • Familiarity with the IDURAR open-source ERP platform.
  • Experience building Offline-First applications (Sync protocols).
  • Knowledge of Docker and Kubernetes (DevOps basics).
  • Background in AdTech, CRM, or FinTech in the African context.

  The Challenges You Will Solve:

  • The "Burst" Problem: How do we send 50,000 SMS notifications for a client’s flash sale in 5 minutes without crashing the dashboard for everyone else?
  • The "Offline" Problem: How do we sync 500 new "Quick Orders" from a field agent's tablet when they reconnect to a slow 3G network, ensuring no data is lost?
  • The "Intelligence" Problem: How do we calculate a VIP Score for a customer in real-time based on their last 50 transactions across different branches?

  Why Join MarketEdge?

  • Build for Impact: You aren't just moving tickets; you are building the "Operating System" for African businesses.
  • Technical Depth: You will work with complex problems like eventual consistency, event sourcing, and high-concurrency queues.
  • Agile Culture: We value shipping code that works. We focus on "Definition of Done" that includes performance on slow networks, not just functionality on high-speed Wi-Fi.

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  Check how your CV aligns with this job

  Method of Application

  Interested and qualified? Go to Tezza Business Solutions Ltd on tezzasolutions.catsone.com to apply

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