Senior Full-Stack Engineer - AI-Driven Enterprise Web & API

Openkrill; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Health and dental insurance

Meal and food allowance

Childcare assistance

Extended paternity leave

Wellhub (Gympass) TotalPass discounts

Profit Sharing and Results Participa​t

Life insurance

CI&T University

Discount club

Well-being platform

Job summary

CI&T is seeking a Senior Full-stack Engineer to evolve a web application, build reliable enterprise integrations, and scale document processing capabilities. You will work across front-end and back-end development, translating design specs into high-quality user experiences while developing versioned APIs and scalable workflows.

You will contribute to integrations with enterprise platforms such as SAP S/4HANA and Ivalua, delivering robust, maintainable solutions with performance-minded

Qualifications

• Strong professional experience in full-stack software development.
• Hands-on experience with Next.js, React, and TypeScript.
• Strong proficiency in Python and experience developing APIs with Django REST Framework.
• Solid knowledge of PostgreSQL, including data modeling and database interactions.

Responsibilities

• Rebuild and enhance the web application based on the Design team's mockups, using Next.js, React, and TypeScript.
• Develop user-facing features, including PDF grounding views that help users review and validate information extracted from documents.
• Design, develop, and maintain versioned APIs using Python and Django REST Framework.
• Build and maintain integrations between Pegasus, SAP S/4HANA, and Ivalua, ensuring reliable data exchange across systems.
• Scale asynchronous batch processing with Celery to support workloads involving up to 10,000 PDF documents.
• Work with PostgreSQL to support application data management and persistence.
• Implement user metrics to provide insights into application usage and support data-driven improvements.
• Ensure application quality through automated testing, code reviews, documentation, and engineering best practices.
• Identify and resolve performance bottlenecks across the application, APIs, integrations, and background processing workflows.

Skills

Next.js

React

TypeScript

Python

APIs

Performance optimization

Testing

Code reviews

Cross-functional collaboration

Tools

Celery

Django REST Framework

PostgreSQL

Job description

CI&T is seeking a Senior Full-stack Engineer to evolve a web application, build reliable enterprise integrations, and scale document processing capabilities. You will work across front-end and back-end development, translating design specs into high-quality user experiences while developing versioned APIs and scalable workflows.

You will contribute to integrations with enterprise platforms such as SAP S/4HANA and Ivalua, delivering robust, maintainable solutions with performance-minded