Full-Stack Developer

4 days ago

Karachi, Sindh, Pakistan ZENEXGEN Full time
Overview

Zenexgen Tech is a AI based software house focused on building scalable, AI-powered, and secure digital solutions. We specialize in custom software, CRM systems, and end-to-end application development for clients across various industries. We're growing — and looking for a Senior Full-Stack Developer with a passion for system architecture and backend excellence.

As the lead developer, you will architect, develop, and maintain custom software systems such as CRMs, dashboards, ERP platforms, and backend services that power web/mobile applications. You will take ownership of the backend and lead a small team of developers across the full development lifecycle.

Responsibilities
  • Architect and implement scalable backend systems for CRMs, admin dashboards, and SaaS platforms
  • Design and maintain RESTful and GraphQL APIs used by frontend teams (web/app)
  • Implement secure authentication, authorization (RBAC), and data validation
  • Build integrations with third-party services (e.g. payment gateways, SMS/email APIs)
  • Optimize database queries, schema design, and backend performance
  • Manage deployments on AWS and set up CI/CD pipelines (GitHub Actions preferred)
  • Collaborate with web and app developers to align backend and frontend logic
Tech Stack
  • Backend: (Express/NestJS), TypeORM or Prisma
  • Frontend: React (basic familiarity)
  • DevOps/Cloud: AWS (EC2, S3, RDS), Docker, Git, CI/CD
  • Project Management: Jira or , GitHub Projects
Required Skills & Qualifications
  • 2+ years of hands-on backend development experience
  • 2+ years of experience with and TypeScript
  • Solid understanding of database architecture and performance optimization
  • Experience with user management, role-based access control (RBAC), and secure API design
  • Strong grasp of REST/GraphQL API patterns, versioning, and documentation
  • Proven ability to manage and scale backend infrastructure in production
  • Familiarity with Dockerized environments and cloud deployment (AWS preferred)
  • Ability to lead backend sprints, handle timelines, and collaborate cross-functionally
  • Experience building CRMs, ERP, SaaS, or multi-tenant applications
  • Knowledge of NestJS, Redis, Kafka, or microservices
  • Previous leadership or technical mentoring experience
  • Exposure to front-end frameworks like React or React Native
  • Experience in integrating with Stripe, Twilio, Firebase, or similar APIs
What You'll Get
  • Competitive market salary (negotiable based on experience)
  • Opportunity to work on custom projects from scratch
  • High-impact role in a fast-growing product-focused company
  • Team-first culture with room to grow into a Lead Engineer or CTO role
Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

Software Development


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