Nikhil Krishna

Experienced Back-End Developer with over 5 years of experience delivering scalable and high-performance server-side solutions for enterprise-level applications. Proven expertise in developing and optimizing ETL pipelines, RESTful APIs, and modular backend architectures using Python, Flask, and SQL. Skilled in data validation (XSD, JSON Schema) and well-versed in healthcare data standards like FHIR and EDI X12. Strong focus on automation, performance tuning, and clean, maintainable code. Adept at supporting mission-critical systems and collaborating across cross-functional teams to drive business outcomes.

• Designed and implemented scalable ETL pipelines to convert flat-file data (CSV, fixed-width) into structured JSON and XML formats, integrating XSD and JSON Schema validation to ensure high data integrity and regulatory compliance.
• Developed a dynamic SQL query generation framework by parsing XML input and applying configurable business logic, significantly enhancing processing speed, flexibility, and modular reuse across system components.
• Engineered interoperability solutions by transforming healthcare data between X12-278 EDI transactions and FHIR resources, facilitating seamless data exchange between legacy infrastructure and modern API-based platforms.
• Led end-to-end client upgrade initiatives, including solution design, customization, and team mentoring, ensuring successful adoption of new product versions with minimal production issues during critical release cycles.
• Championed a culture of clean code, automation, and proactive debugging, leading to a reduction in post-deployment defects and improved developer onboarding efficiency.