Fullstack Engineer

Justt is revolutionizing how merchants fight back against illegitimate chargebacks. We're not just another fintech - we're building AI-powered automation that's changing an entire industry, saving merchants millions while they sleep.

As a Fullstack Engineer, you'll work on real problems that matter. You'll build features that directly impact our merchants' bottom line, working across our entire stack to create solutions that actually work at scale. You'll own features end-to-end, tackle challenging technical problems, and see your code make a tangible difference every single day.

What you'll be doing:

Own features end-to-end in our chargeback automation platform - from AI-powered evidence generation to real-time merchant-facing insights
Take features from concept to production - plan, build, deploy, and monitor your code in production
Master our tech stack (Node.js, Next.js, SQL/NoSQL, K8S, AWS) while building features across our 200+ microservices architecture
Handle high-stakes data at scale - process thousands of chargebacks daily, ensure data accuracy, and maintain system reliability
Be part of a strong engineering culture - work closely with engineers, product, QA, and DevOps to ship features that move the needle

Requirements:

4+ years of hands-on experience in full stack software development
Strong experience with Node.js and React (experience with Nest.js or Next.js is an advantage)
Experience with both SQL & NoSQL databases (MongoDB, PostgreSQL, Redis, or similar)
Hands-on experience implementing RESTful APIs and working with asynchronous execution environments
Familiarity with microservices architecture and containerization (Docker/Kubernetes)
Experience with cloud platforms (AWS preferred)
Experience with event-driven systems - Advantage
Experience with Monorepo - Advantage
Prior experience in a high-scale, production system - Advantage

Excellent team player with strong communication skills
Bachelor's degree in Computer Science, Software Engineering, or a related field
Drive to promote quality and continuous improvement