Laxman Suthar

About

Backend engineer with 2+ years of production experience building distributed, event-driven microservices and multi-tenant AI SaaS capabilities. Built a PostgreSQL RLS–based tenant isolation system with async pipelines (Apache Kafka), WebSocket real-time communication, pgvector semantic search, and high-throughput REST APIs deployed via Docker, Jenkins CI/CD, and Kubernetes on AWS EC2. Strong in concurrency, query optimization, and observability; experienced with Django/FastAPI, Celery, Redis, and secure/authenticated systems using JWT and OAuth.

Experience

• Backend Developer · D'arteweb11-01-2023 – 11-01-2025

  ■ Performance engineering: Diagnosed 4s response times on 10K+ daily-request endpoints (aggregating nested relational data across 5+ tables) using slow query logs and Django ORM profiling. Root cause: 3 nested ORM joins with no composite indexes. Applied select_related/prefetch_related and Redis caching with TTL-based invalidation — cut DB query time 75% (4s→2s), directly unblocking revenue during a peak sale event. ■ High-availability admission portals: Architected and maintained 5+ portal backends processing 10,000+ student applications/year with 99%+ uptime SLO. Designed RBAC across three actor types (admin, reviewer, student) with JWT + session auth, comprehensive audit logging, and zero PII breaches across full production cycles. ■ Real-time lead scoring pipeline: Built PostgreSQL writes + Redis event-capture pipeline tracking user signals in real-time, enabling sales teams to prioritise high-intent leads. Contributed to ~20% improvement in close rate without additional headcount. ■ Async task infrastructure: Set up Celery with Redis broker for background job execution — email dispatch, report generation, scheduled reminders. Configured worker concurrency, task retries with exponential backoff, and dead-letter handling to prevent silent failures in production.

• Backend Engineer · D'arteweb11-01-2023 – 11-01-2025

  Backend Developer — D'arteweb November 2023 – November 2025 | Udaipur, India · Python, Django, MySQL, PostgreSQL, Redis, Celery, AWS EC2

Education

• Rajasthan Technical University, KotaB.Tech, Computer Science & Engineering

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