ServicesExpertise
Back-End Engineer
Paraline Tech builds back ends in NestJS, Node.js and Laravel on PostgreSQL: APIs, data models, background jobs and the integrations a product depends on.
Led by Mutahar Aslam, Founder & CEO · Remote, worldwide
What this covers
- REST APIs and server-side business logic
- PostgreSQL schema design, migrations and row-level security
- Authentication, single sign-on and role-based access
- Queues and background jobs
- Payment, CRM, courier and SMS integrations
- Multi-tenant data separation
- File storage and media pipelines
- LLM gateways and AI back ends
Tools
Hired through
Work that shows it
GoEx: Courier Operations Platform
Shipment tracking and operations platform for a Pakistani courier, built from scratch: admin, merchant and rider apps. COD from day one, city-to-city zone pricing, local SMS, bulk and single booking, rider PWA for budget Android phones.
Volnyn: AI Website Builder & LLM Gateway
Multi-provider LLM platform that generates and live-previews websites via SSE streaming, then deploys each one to its own volnyn.app subdomain. Freemium quotas, tiered plans, Gemini/OpenAI routing by tier.
My Expense Flow: Expense Splitting App
Ad-free expense splitter with groups, live shared balances and unequal splits (exact, percentage, shares).
Volnynx: MCP Integration for a Freelance Marketplace
Remote HTTP MCP endpoint that lets AI assistants act on a Laravel marketplace, with no client package required.
Metabull: SSO for a Knowledge Base
OAuth single sign-on between Wiki.js and a Django identity provider.
Teachora.ai: Lecture & Substitution Management
Multi-campus lecture and teacher-substitution management for schools. When a teacher is on leave, Teachora builds the cover board and assigns free teachers within fair workload limits.
Where the experience comes from
2023–25
Lobovo. Senior full stack on Medlucy, a healthcare platform.
2025–
Metabull AI. Senior full stack: FastAPI, Node.js, Next.js, Stripe.
Common questions
What does a back-end engineer do?
A back-end engineer builds what runs on the server: the database, the API, the business rules, background jobs and integrations with other systems. It is the part users do not see but every screen depends on.
Which back-end technologies does Paraline Tech use?
NestJS and Node.js in TypeScript, Laravel in PHP, and PostgreSQL as the database, with Prisma, Redis and BullMQ where a project needs them.
Can Paraline Tech build only the API for an existing front end?
Yes. The back end can be built on its own, to an agreed API contract, for a front end or mobile app that another team owns.