Balaji V

Software Engineer with 2+ years of experience in system design, application development, testing, and operational stability. Skilled in building, debugging, and maintaining large-scale applications using React.js, Node.js, TypeScript, and PostgreSQL. Strong exposure to the entire Software Development Life Cycle (SDLC) with hands-on knowledge of CI/CD, Application Resiliency, and Security Best Practices.

Demonstrated ability to design performant, reliable, and secure solutions leveraging emerging technologies in cloud (AWS) and modern frontend frameworks.

Software Engineer - Lightcast.io - Chennai, India

(2023-07)

• Scrawler-next — Classification & Normalization System
• Built backend APIs combining 5+ taxonomy datasets to return only relevant classification and normalization data based on classifier and locale.
• Improved accuracy of salary, experience, and bonus extraction by refining parsing logic and thresholds.
• Enhanced debugging workflows across 9 classifier flows with better UI visibility, reducing time to identify misclassifications.
• Expanded automated test coverage using Jest and Cypress, improving reliability of critical workflows.
• Designed and built a full-stack Release Review system (APIs + UI) to track, review, and export taxonomy changes before production release.
• Unified 10+ taxonomy operations (create, merge, rename, blacklist, metadata updates) into a centralized audit pipeline.
• Improved bulk workflows with strong validation and safeguards, preventing invalid data from reaching production.
• Maintained system stability during major upgrades (Next.js, Prisma) while keeping 30+ end-to-end and regression tests reliable.
• Built a full-stack field management system (FastAPI + Next.js) with validation, visibility controls, and audit logging.
• Developed bulk upload workflows supporting 10K+ records with preview and row-level editing.
• Simplified architecture by standardizing an 84-field schema, removing 10K+ lines of duplicated logic.
• Implemented scalable search using exact, prefix, and full-text strategies with keyset pagination.
• Automated release workflows (RDS → S3 → APIs), eliminating manual release steps and improving reliability.
• Built data pipelines and Snowflake-based reporting layers to generate dashboard-ready analytics.
• Developed end-to-end audit workflows covering validation, sampling, evaluation, and reporting.
• Created automated HTML reports with email delivery, making results accessible to non-engineering teams.
• Built pipelines for ingesting, validating, and loading data into a graph database (Neptune).
• Developed schema validation systems covering 13 vertex types and 23 edge relationships.
• Implemented automated validation checks and reporting to ensure data quality before release.
• Provisioned infrastructure using Terraform and automated CI/CD pipelines with gated deployments.
• Built an internal IP whitelist system (Next.js + AWS WAF) replacing manual access management workflows.
• Implemented backup and restore automation along with secure IAM policies for production systems.

Bachelor of Engineering - Computer Science - Anna University – University College of Engineering, Villupuram (2023)