Fullstack Developer

XcelPros LLC.; Bengaluru; On-site; INR 1,200,000 - 2,100,000; Full time

Job summary

XcelPros LLC Bengaluru is seeking a capable Fullstack Developer to design, build and maintain scalable web and API components. You will work with Python, FastAPI, ReactJS, and data tools to deliver robust backend services and data pipelines.

Collaborate with offshore and local teams, implement multi-tenant security, and participate in DevOps, CI/CD, and integration with external systems. Strong focus on code quality, testing, and documentation.

Qualifications

• 3+ years of backend development with Python.
• Experience with PostgreSQL and Supabase or Firebase.
• Familiarity with RESTful APIs and asynchronous programming.

Responsibilities

• Deliver backend services and APIs using Python and JavaScript.
• Set up code pipelines and CI/CD.
• Collaborate with frontend teams for data flow across the stack.
• Implement multi-tenant security and authentication.
• Write tests and ensure code quality.

Skills

Python

FastAPI

PostgreSQL

Supabase

REST API

Asynchronous

Authentication

Multi-tenant

Cloud services

Kafka

Git

Unit tests

Jest/Mocha

Code reviews

Serverless

GraphQL

Airflow

OAuth

NATS

Job description

# Fullstack DeveloperLocationBengaluruPositionFullstackRoleDeveloper## Key ResponsibilitiesDeliver technical elements (code, architecture, and documentation) including but not limited to the following technologies: ReactJS, NextJS, Python, FastAPI, Pandas, Numpy, PostgreSQL, Generative AI, GraphQL or similar, Apollo or similar, Minio or similar.Set up code pipelines for B2B applications to enable compilation and auto-deployment.Engage in the design, development, testing, and maintenance of web and mobile products.Create business, technical requirements, and design documents that meet business needs, adhering to XcelPros’s documentation standards.Convert requirements into detailed technical designs and configure / develop within the Product ecosystem accordingly.Develop components with developers both near and offshore, including code review, hands-on code updates, architecture review, and updates.Participate in Active Directory (AD), security/authorization setup, data interface design, data migration, and reconciliation.Collaborate with other IT teams (eCommerce/BI/ERP/Architecture) to ensure design alignment with overall solution strategy and leverage core system features in product development.Analyze and set up coding standards and multi-tenant architecture; review and optimize code as per best practices.Perform technical and functional analysis as required.Analyze issues to determine root cause and necessary corrective actions.Provide post-implementation support for deployed solutions.Serve as the point person for addressing issues and enhancements related to the specific product and functional area.Design, develop, and maintain scalable backend services and APIs using Python and JavaScript.Work with Supabase (PostgreSQL) for database design, triggers, and row-level security (RLS).Build and manage backend components for automation workflows, user events, and notifications.Develop secure integrations with external systems (e.g., Salesforce, Microsoft D365, cloud storage, messaging platforms).Implement serverless functions and cron jobs for scheduled or event-based triggers.Collaborate with frontend teams to ensure seamless data flow across the stack.Write clean, maintainable code with thorough documentation and testing.Monitor performance, logs, and errors; implement retries and error handling for resilience.Contribute to DevOps pipeline, including deployments, environment management, and CI/CD.## Required Skills & Experience3+ years of backend development experience using Python (with FastAPI or similar frameworks).Strong experience with PostgreSQL and modern backend-as-a-service platforms like Supabase or Firebase.Deep understanding of RESTful API design and asynchronous programming.Hands-on experience with authentication, access control, and multi-tenant architecture.Familiarity with cloud services (e.g., AWS Lambda, Vercel Functions, or GCP).Experience with event-driven systems, webhooks, or message queues (Kafka, NATS, etc.).Comfort working in a Git-based development process with code reviews and pull requests.Ability to write unit/integration tests (Jest, Mocha, etc.) and ensure code reliability.## Bonus Skills (Nice to Have)Experience with Supabase-specific features like row-level security, triggers, and realtime updates.Background in workflow engines, automation design, or low-code platforms.Experience working with GraphQL and data transformation pipelines.Knowledge of OAuth, token-based auth flows, and multi-system user identity management.Familiarity with job schedulers like Apache Airflow, Temporal, or custom cron logic.Exposure to AI/NLP-based applications or intelligent assistants.