Back End Developer

6 days ago

Nadiad, India Recro Full time

Backend & Distributed Systems Engineer with 6+ years of experience building high-scale, low-latency, mission-critical systems for large B2C platforms. Experienced in handling 6M+ RPM, 30M+ active users, sub-50ms latencies, and >99.9% availability. Strong focus on system design, observability, reliability, data platforms, and ML/LLM-powered features.Core Skills & TechnologiesBackend & Systems: Java, Go, Spring Boot, REST, gRPC, GraphQLData & Storage: SQL, DynamoDB, Redis, ElasticsearchStreaming & Events: Kafka, Messaging QueuesCloud & Infra: AWS, Databricks, Docker, KubernetesMonitoring: Prometheus, GrafanaDevOps: Git, CI/CD, Documentation, Agile practicesCompetencies:- Distributed Systems Architecture- Microservices Design- Real-Time Event Processing- Search, Listing & Recommendation Systems- Performance Optimization & Latency Reduction- API & Database Modeling- Reliability Engineering & ExperimentationHighlighted Achievements & ProjectsSearch Systems & Platforms- Designed end-to-end search frameworks for multiple verticals with 200K+ restaurants & 70M+ items.- Built real-time ingestion pipelines processing 300K+ RPM with sub-20ms latency across multiple consumers.- Deployed LLM-powered vector search (768-dim embeddings) achieving:- +3% conversion uplift- +2.3% ads RPO improvement- Improved search latency by 50%, bringing P95 to through custom analyzers & ES tuning.- Built contextual ad-placement systems driving 15% uplift in ad revenue.Recommendations, Listings & Ranking- Built cuisine recommendation engine serving 1M+ requests per minute and improving homepage engagement by 4.5%.- Delivered bestseller tagging & ML-driven ranking pipelines improving AOV.- Developed rule-based scoring engine reducing tuning cycles from hours → seconds.Platform Reliability & Infra Excellence- Maintained 100% uptime during peak events (NYE, IPL) with 5× traffic surges.- Reduced infra cost by ~20% through optimized event processing & Redis→Val-key migration.- Built internal configuration-management system reducing resolution time from 24 hours → .- Ensured ≥99.9% availability, strong MTTR discipline, and robust DR/BCP processes.Leadership & Delivery- Led teams for search, ingestion, and ranking systems; mentored 6+ engineers.- Owned on-call reliability, CI/CD, MTTR reduction, RCA quality, and war-room processes.- Recognized with internal awards for scaling search platforms & major product launches.Experience SnapshotCurrent: Senior Backend Engineer (High-Scale B2C Platform)Focus areas: Search, distributed systems, event processing, ML/LLM search, reliability engineering.Past Roles:- Backend Engineer – API & Microservices- Built GraphQL gateways, optimized database engines, reduced latency & CPU usage significantly.- Implemented observability stacks and high-coverage testing frameworks.- Multiple top-performance awards.

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