Raval Ashutosh

Senior Node.js engineer with 7 years at Webelight Solution, deliberately deepening expertise across 8+ independent client verticals — logistics, fintech, insurance, real estate, and SaaS — each with its own architecture, domain, and scale challenges. Designed a real-time chat microservice sustaining 100k+ concurrent users at sub-100ms p99 latency, and a multi-tenant booking platform that eliminated double-bookings across 500+ daily reservations using optimistic concurrency control. Promoted to Senior in 2020; since then led architecture for 8+ microservice products and mentored junior engineers — 2 of whom reached mid-level within 18 months.

Stayed because the technical growth was real; now actively seeking a new environment where I can bring that depth to a larger product and a broader team.

Senior Node.js Developer at Webelight Solution Pvt. Ltd. (2020-01 – Present)

• Owned architecture decisions for 8+ microservice products; patterns adopted as company-wide baseline — reduced onboarding time for new engineers joining existing codebases.
• Defined performance SLAs for all high-traffic systems and met or exceeded them across every production deployment; zero SLA breaches in 5 years as senior engineer.
• Mentored a rotating cohort of 4–6 junior engineers per sprint; 2 progressed to mid-level within 18 months through structured code review and pair programming.
• Led sprint planning and task allocation for cross-functional teams of up to 8 engineers across 3 concurrent product tracks.
• Built event-driven microservices with Kafka and Socket.IO, enabling independent deployments and decoupled service boundaries.
• Delivered REST and GraphQL APIs (Apollo, TypeGraphQL, Prisma) with consistent sub-200ms p95 latency under production load across multiple client apps.
• Reduced average query latency by ~45% on the most-accessed endpoints through targeted MongoDB aggregation pipeline rewrites and Redis caching layer design.
• Achieved 95% test coverage across critical payment and booking paths using Jest; identified and fixed 3 race-condition bugs pre-launch that would have caused data loss.
• Enforced server-side RBAC across multi-role platforms (5+ stakeholder types), ensuring role permissions are validated at the API layer and cannot be bypassed via frontend routing.
• Deployed serverless workloads on AWS Lambda; containerised services with Docker Compose to eliminate environment-specific bugs across dev and production.
• Integrated Google Cloud Functions, Firebase Auth, and Firestore for real-time auth flows across 3 products, reducing auth-related support tickets.
• Automated CI/CD pipelines; implemented CloudWatch alerting with custom health-check endpoints — cut mean time to detect (MTTD) for production issues.

Node.js Developer (Mid-level) at Webelight Solution Pvt. Ltd. (2018-07 – 2019-12)

• Built and shipped full-stack features across 3 client products under senior guidance; took ownership of API design and database schema from day one.
• Introduced Redis caching on a high-read endpoint, cutting p99 response time from ~800ms to ~120ms — first major performance win recognised by the team.
• Wrote initial Jest test suites for a greenfield fintech module; practice later adopted team-wide as the standard testing approach.

Master of Computer Applications (MCA) in Computer Applications – Acharya Motibhai Patel Institute — Ganpat University (2019)

Bachelor of Computer Applications (BCA) in Computer Applications – Hemchandracharya North Gujarat University (2015)