Qureos Mentor

Mirrorsize US Inc

About ROI-AI ROI-AI is building an AI-powered platform founded by Ex-Google Deepmind for automating chargeback dispute management in wholesale and retail distribution. Our platform helps analysts reduce manual work by 90% through intelligent document parsing, evidence assembly, and workflow automation.We're a seed-stage startup with a solid technical foundation and early customer traction, looking to expand our engineering team to complete our MVP and scale.About the RoleWe're looking for a Backend Engineer to join our small, fast-moving team. You'll work on core systems that process chargebacks, manage cases, and integrate with financial services infrastructure. This is a high-impact role where your work directly affects product delivery and customer success.Responsibilities- Design and implement backend services in Python (FastAPI)- Build and maintain APIs that power our web applications- Work with PostgreSQL databases and optimize query performance- Develop integrations with third-party services (payment processors, email, S3)- Implement financial calculations with precision and auditability- Write tests and maintain high code quality standards- Collaborate with frontend engineers on API contracts and system design- Contribute to infrastructure tooling and deployment pipelinesTech StackBackend -- Python 3.11+, FastAPIDatabase-- PostgreSQL, MS SQL Server (customer ERP integration)Infrastructure-- Docker, AWS (Lightsail, S3, SES, Secrets Manager)CI/CD-- GitHub Actions, TerraformTesting-- Pytest, integration testsAI/ML-- Anthropic Claude, OpenAI (orchestration layer)Requirements- 4+ yearsof backend development experience- Strong Python profi ciency (FastAPI, async/await, Pydantic preferred)- Experience with relational databases and SQL (PostgreSQL)- Understanding of RESTful API design- Familiarity with Docker and containerized development- Comfortable working in a fast-paced startup environment- Strong written and verbal communication skills- Candidates preferred from tier 1 &amp; tier 2 collegesNice to Have- Node.js/TypeScript experience- Experience in fintech, payments, or dispute management- Financial calculations and billing system experience- AWS experience beyond basics (S3, SES, Secrets Manager)- Multi-tenant SaaS architecture experience- Background with authentication systems (Clerk, Auth0)- Experience with AI/ML integrations or LLM APIs- Previous startup or founding engineer experienceWhat You'll Work On (First 90 Days)- Month 1: Onboard, understand the codebase, ship 1-2 small features- Month 2: Own a core workflow (billing, remittance tracking, or integrations)- Month 3: Lead implementation of a major feature, contribute to architecture decisionsOur Interview Process1.Technical Screen (60 min) - Live coding and system design2. Founder Interview (30 min) - Deep dive, Q&amp;A, alignmentJob Type: Full-timePay: &#8377;1,000,000.00 - &#8377;2,500,000.00 per yearWork Location: In person

Backend Engineer- Python

Join Mirrorsize US Inc and explore 1   exciting career opportunities. They're hiring for various roles with options for remote or on-site work. Apply today and become part of their innovative team.

Mirrorsize US Inc

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Backend Engineer- Python