Sr. Fullstack engineer

Ascendion Engineering; Pune District; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Ascendion in Pune is seeking a Frontend Developer to design, build, and scale high-performance web applications, owning the entire frontend delivery lifecycle from concept to deployment.

You will work with React, FAST API, Flask and Python, architect scalable UI and backend integrations, and mentor engineers while collaborating with product and design teams to translate business requirements into technical solutions.

Qualifications

• Proven expertise with modern frontend frameworks, React, FAST API, Flask and backend technologies Python, plus strong experience with relational/NoSQL databases and cloud platforms (AWS/GCP).

Responsibilities

• Architect, develop, and maintain robust, scalable APIs and microservices alongside intuitive, high-performance user interfaces using modern full-stack technologies. Mentor junior engineers, conduct thorough code reviews, and collaborate with product and design teams to translate business requirements into technical solutions.

Skills

Frontend frameworks

React

FAST API

Flask

Python

Relational DBs

NoSQL DBs

AWS

GCP

Job description

About Ascendion

Ascendion is a leader in AI-Native platform driven software engineering company that underwrites outcomes, helping businesses innovate faster, smarter, and with greater impact. We partner with Global 2000 clients across North America, UK, Europe, and APAC to solve complex challenges in data, experience design, software product engineering, and workforce transformation. Powered by expert engineers, thousands of AI agents, and our Engineering to the Power of AI™ (EngineeringAI) method, we deliver measurable outcomes that build trust, unlock value, and accelerate growth. Learn more at ascendion.com

Ascendion | Engineering to elevate life

We have a culture built on opportunity, inclusion, and a spirit of partnership. Come, change the world with us:

• Build the coolest tech for world's leading brands
• Solve complex problems – and learn new skills
• Experience the power of transforming digital engineering for Fortune 500 clients
• Master your craft with leading training programs and hands-on experience

Experience a community of change makers! Join a culture of high-performing innovators with endless ideas and a passion for tech. Our culture is the fabric of our company, and it is what makes us unique and diverse. The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion.

About the Role

Design, build, and scale high-performance end-to-end web applications while driving technical excellence across our core product engineering teams. Own the entire software development lifecycle from architecture and backend service implementation to responsive frontend delivery.

Job Title: Frontend Developer[inferred from the JD — confirm before publishing]

Key Responsibilities:

• Architect, develop, and maintain robust, scalable APIs and microservices alongside intuitive, high-performance user interfaces using modern full-stack technologies. Mentor junior engineers, conduct thorough code reviews, and collaborate with product and design teams to translate business requirements into technical solutions.

Minimum Qualifications:

• Proven expertise with modern frontend frameworks , React, FAST API, Flask and backend technologies Python, plus strong experience with relational/NoSQL databases and cloud platforms (AWS/GCP).

Location: Pune