Fullstack Developer

Responsibilities

• Deliver 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 Xcel Pros’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.
• Serve as the point person for addressing issues and enhancements related to the specific product and functional area.
• 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 Dev Ops pipeline, including deployments, environment management, and CI/CD.

• 3+ 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.

• 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.