Full-Stack Engineer: Data-Driven Web Apps (React/Next.js)

Plutus21 Capital, L.L.C.; Karachi Division; On-site; PKR 1,800,000 - 2,400,000; Full time

Job summary

Plutus21 Capital, L.L.C. is seeking a Full Stack Engineer to join our engineering team.

You will work across the entire technology stack, building scalable applications and delivering end-to-end solutions that drive our product forward. We are constructing internal platforms and tools to support our quantitative engineering and research teams, powering workflows, data management, monitoring and operational efficiency across the organization.

Qualifications

• Strong proficiency in TypeScript.
• 3+ years of experience building production applications with React.
• Experience with Next.js in a full-stack capacity.
• Solid understanding of API design principles.
• Experience with PostgreSQL, including schema design and performance tuning.
• Experience with MongoDB and document modeling.
• Strong understanding of software architecture.
• Experience designing systems beyond simple CRUD applications.
• Familiarity with authentication systems and access control.
• Comfortable working with asynchronous workflows.
• Experience with Docker.
• Proficiency with Git.
• Experience working within CI/CD pipelines.
• Familiarity with cloud deployment environments.

Responsibilities

• Build and maintain internal web applications using React + Next.js (TypeScript).
• Develop data-heavy dashboards and workflow tools.
• Design clean, intuitive interfaces tailored for technical users.
• Own features end-to-end — from architecture and implementation to deployment.
• Design and implement RESTful APIs using Next.js backend capabilities.
• Structure backend logic with scalability and maintainability in mind.
• Implement authentication systems and role-based access control.
• Optimize backend performance for data-intensive operations.
• Contribute to automation systems within the platform.
• Design backend processes capable of handling both structured and unstructured data.
• Build reliable background processes, scheduled jobs, and ingestion workflows.
• Ensure systems are robust, observable, and resilient.
• Work primarily with PostgreSQL as the core database; use MongoDB where appropriate.
• Design efficient database schemas and indexing strategies.
• Optimize queries across large datasets to maintain performance.
• Containerize services using Docker.
• Work within CI/CD pipelines to maintain smooth deployment workflows.
• Deploy applications to cloud environments such as AWS, Vercel, or similar platforms.
• Write clean, testable, and maintainable code.
• Participate actively in architectural discussions and technical decision-making.

Skills

TypeScript

React

Next.js

API design

PostgreSQL

MongoDB

Docker

Git

CI/CD

Cloud deployment

Asynchronous workflows

Authentication

Tools

AWS

Vercel

Job description

Plutus21 Capital, L.L.C. is seeking a Full Stack Engineer to join our engineering team.

You will work across the entire technology stack, building scalable applications and delivering end-to-end solutions that drive our product forward. We are constructing internal platforms and tools to support our quantitative engineering and research teams, powering workflows, data management, monitoring and operational efficiency across the organization.