ABOUT THE COMPANY : One of our Customer based in CA, USA ( ROI-AI), founded by Ex- Google DeepMind is building an AI-powered platform for automating chargeback dispute management in wholesale and retail distribution. The platform will help analysts reduce manual work by 90% through intelligent document parsing, evidence assembly, and workflow automation.
ROI-AI is a seed-stage startup with a solid technical foundation and early customer traction, looking to expand the engineering team to complete our MVP and scale.
About the Role
We'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 (Fast API)
- 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 pipelines
Tech Stack
Layer Technologies : -
Backend Python 3.11+, Fast APIDatabase 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+ years of backend development experience in PythonStrong Python proficiency (Fast API, async / await, Pydantic preferred)Experience with relational databases and SQL (PostgreSQL)Understanding of RESTful API designFamiliarity with Docker and containerized developmentComfortable working in a fast-paced startup environmentStrong written and verbal communication skillsCandidates preferred from tier 1 & tier 2 collegesNice to Have
Node.Js / TypeScript experienceExperience in fintech, payments, or dispute managementFinancial calculations and billing system experienceAWS experience beyond basics (S3, SES, Secrets Manager)Multi-tenant SaaS architecture experienceBackground with authentication systems (Clerk, Auth0)Experience with AI / ML integrations or LLM APIsPrevious startup or founding engineer experienceWhat You'll Work On (First 90 Days)
Month 1 : Onboard, understand the codebase, ship 1-2 small featuresMonth 2 : Own a core workflow (billing, remittance tracking, or integrations)Month 3 : Lead implementation of a major feature, contribute to architecture decisionsCompensation : The compensation offered for this role will be at the prevailing best market rate. You will be working from Noida and your Manager will be based in California, USA.
You must have a valid passport to apply for this role. (Having USA VISA holders will be preferred)