Senior Python / React Engineer (AI-powered Video Platform)

About the Project

We’re building a cutting-edge AI-powered video platform that aggregates and processes content from multiple social media sources. Users can interact with video data through context-aware search, Retrieval-Augmented Generation (RAG), and LLM agent orchestration.

You’ll join a small, focused team working closely with the CTO/founder, shaping the product’s technical foundation and bringing innovative AI-driven experiences to life.

Tech Stack

Backend: Python (FastAPI), Node.js / TypeScript
Frontend: React, Next.js, Tailwind CSS
Cloud: AWS Lambda, API Gateway, Cognito, S3, DynamoDB, OpenSearch
Architecture: Serverless, event-driven design
AI Integration: RAG, LLM agents, contextual search

Your Role

As a Full-Stack Engineer, you’ll drive end-to-end development — from backend APIs and AI integrations to frontend features and UI delivery. You’ll collaborate directly with AI architects, product managers, and designers to craft scalable, high-performance systems.

Responsibilities

Develop and maintain backend services in Python (FastAPI or similar)
Create and deploy serverless APIs on AWS (Lambda, API Gateway)
Implement secure user authentication (AWS Cognito) and cloud storage (S3)
Integrate AI-powered features (RAG, LLM agents, contextual search)
Parse and process video content and metadata from social media
Build responsive and performant interfaces with React / Next.js / TypeScript
Implement video display, search, and interaction components
Collaborate with product and design teams to refine user experiences
Contribute to infrastructure, CI/CD, and performance optimization

What We’re Looking For

4+ years of professional software development experience
Strong skills in Python (FastAPI preferred)
Solid experience with React, Next.js, and TypeScript
Proficiency with AWS services (Lambda, Cognito, S3, API Gateway, DynamoDB)
Ability to design and scale RESTful APIs
Understanding of serverless and event-driven architectures
Experience integrating with or building AI/ML-powered features (RAG, LLMs, etc.)
Good communication skills and a proactive, startup-ready mindset

Nice to Have

Experience with video parsing, streaming, or playback
Familiarity with infrastructure-as-code or DevOps (CI/CD pipelines)
Exposure to authentication and analytics systems (AWS Cognito, OpenSearch)
Understanding of SEO, SSR/SSG rendering models in Next.js

Being a part of 3asoft means having

High level of flexibility and freedom
p2p relationship with worldwide customers
Competitive compensation paid in USD
Fully remote working