Senior Lead Engineer: Python/Node.js + React

Arbisoft; Lahore; On-site; PKR 4,000,000 - 6,500,000; Full time

Job summary

Arbisoft is seeking a hands-on Lead Product Engineer (Python and Node.js, with React on the front end) with 9+ years of experience to own complex features end-to-end, from technical design to production deployment. You will strengthen internal product teams, guiding technical design while building services, APIs, and React interfaces.

You will design scalable backend services, lead architecture, and mentor others, collaborating with product, design, and engineering teams across projects.

Qualifications

• 9+ years of professional software engineering experience, with at least 5 years in backend development.
• Strong hands-on production experience with Python and Node.js, and solid React.js experience.
• Proficiency in JavaScript/TypeScript and modern web app architecture.
• Experience designing APIs, databases, authentication, testing, monitoring.
• Ability to explain implementation approaches, trade-offs, and engineering best practices.
• Comfort using AI tools to accelerate development while ensuring production quality.

Responsibilities

• Design and build scalable backend services and APIs in Python and Node.js, with React front ends.
• Lead architecture and technical design of complex features, including data models and API contracts.
• Develop and integrate RESTful/GraphQL APIs; work with PostgreSQL, MySQL, and MongoDB.
• Own features end-to-end from design to deployment and production support.
• Build secure, reliable, and high-performance applications with proper authentication and monitoring.
• Write clean, well-documented code and hand over work smoothly between projects.
• Collaborate with product, design, and engineering teams to translate requirements into scalable solutions.
• Participate in code reviews, mentor engineers, and contribute to engineering best practices.

Skills

Python

Node.js

React

TypeScript/JavaScript

API design

GraphQL

PostgreSQL

MySQL

MongoDB

Code reviews

Mentoring

Tools

Copilot

Job description

Arbisoft is seeking a hands-on Lead Product Engineer (Python and Node.js, with React on the front end) with 9+ years of experience to own complex features end-to-end, from technical design to production deployment. You will strengthen internal product teams, guiding technical design while building services, APIs, and React interfaces.

You will design scalable backend services, lead architecture, and mentor others, collaborating with product, design, and engineering teams across projects.