Siddharth Gelera

Skills

• Frontend: React.js, Angular, Preact, Vue.js, SASS, TypeScript, JavaScript
• Backend: Node.js, Fastify, LoopBack.io, Express, GraphQL, REST APIs, Golang, Microservices
• Testing & Quality: Jest, Vitest, Mocha, Playwright, Unit Testing, Integration Testing, Custom Testing Utilities
• Security: Auth, JWT, OWASP, Auth0, API Security, Opaque Tokens
• Architecture: Microservices, Event-Driven Architecture, Message Queues, Kafka, Caching Strategies
• DevOps & Monitoring: Docker, CI/CD, GitHub Actions, Infrastructure Automation, Grafana, Dynatrace, Azure Monitoring, Build Systems
• Databases: PostgreSQL, MySQL, MongoDB, Redis, Performance Optimization, Sharding, Foreign Data Wrappers
• Cloud: AWS, GCP, Azure
• Project Management: Kanban, JIRA, Code Reviews, Technical Mentoring

Work Experience

• Architect enterprise client-facing applications focusing on performance, responsiveness, and user experience
• Improved development build times by 60% by migrating from Webpack to ESBuild for code minification
• Collaborate with 7-person architecture team to design stable, extensible abstractions for UI components
• Streamline user onboarding processes and simplify complex workflows for better user adoption

• Contributed to Fastify ecosystem projects including @fastify/send library and Mercurius GraphQL implementation
• Optimized JavaScript performance bottlenecks using ClinicJS and 0x flamegraphs, reducing function execution times
• Architected microservices solutions using Fastify, Kafka messaging, and Redis caching serving 100-200 concurrent users
• Improved CI/CD setup, reducing deployment time by 25% through automated pipeline optimizations
• Enhanced system infrastructure and caching strategies to improve developer experience and code maintainability
• Optimized Redis-based search functionality from 8-second to 8-millisecond response times using hash tables and fuzzy search

• Led and mentored development teams of 10-15 engineers across multiple product initiatives
• Hired majority of current engineering staff and conducted daily code reviews with weekly technical mentoring sessions
• Developed and Delivered ComplyIQ tax compliance platform, reducing manual tax reporting processes by 70% through automation
• Built impoweredTeam caregiver platform from MVP to 5k+ users, solving concurrency challenges for job booking systems
• Led Parkpoolr peer-to-peer parking platform development, reducing user booking time by 50% through using interval trees and optimised load balancing

• Increased developer feedback cycle speed by 30% through tooling automation
• Engineered core modules for portfolio curation and analytics using Angular and Loopback.io financial tech stack
• Built custom UI components that improved application load times by 20% for financial reporting tools
• Refactored legacy reporting engines, reducing data processing time by over 40% through algorithm improvements

• Developed B2B integration portals for automotive after-sales services and garage management systems
• Refactored legacy backend systems and optimized transaction workflows for service center operations
• Built dashboards for garage management and streamlined service center onboarding processes

• Developed and maintained reusable UI component libraries for web and mobile tax reporting and filling platform
• Created responsive interfaces for financial analytics tools with focus on cross-platform compatibility
• Collaborated with backend teams to integrate financial data visualization components

• Founding engineer responsible for building admin portal infrastructure for ride-sharing platform
• Implemented trip analytics dashboard and automated driver onboarding workflows

Projects

Education