Backend Developer (Middle / Senior)

About us

AppScale Collective is a team building web-SaaS and consumer products with a strong focus on AI.

We build real products, not pitch decks.

Our portfolio includes:
‍

• an AI-video platform with 9,000+ paying users,
• an educational project for students,
• and two more products currently in production.
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We’re looking for an engineer who doesn’t just write code — but builds systems.

The work is about speed, ownership, teamwork, and attention to detail.

What we’ve already built

• Deployed Comfy UI on AWS to stably generate 1M+ images per month
• Achieved 0.01% failure rate across the entire video-generation pipeline
• Reduced AWS costs 3× without performance loss
• Launched an MVP for a student-focused product in just 2 weeks

Your responsibilities

• Design and implement backend for new microservices
• Help build the video editor of the future (think CapCut + AI gen tools)
• Collaborate with frontend devs to ship features fast and optimize for 10× scale by summer

Requirements

• 3+ years of experience with Node.js (TypeScript)
• Proven expertise with Amazon AWS (Lambda, S3, SQS, etc.)
• Experience with PostgreSQL (PostgREST / Supabase is a plus)
• Strong understanding of RESTful API design
• Experience with high-load systems
• Solid understanding of OOP and SOLID principles

Tech stack

• Amazon AWS
• Node.js (TypeScript)
• PostgreSQL (Supabase)
• Cloudflare
• React + Effector
• Monorepo

Conditions

• Full-time only

Team

We’re a small team of 7, including 3 core engineers driving the tech side:

• 1× Frontend Engineer
• 1× Full-stack Engineer
• 1× Backend Engineer