Sajit Khadka
Senior Software Engineer
Building scalable backend systems and distributed applications. Specialized in event-driven architectures and cloud-native solutions.
7+
Years Experience
100K+
Users Impacted
45%
Avg Performance Gain
99.9%
System Uptime
Senior Software Engineer
Rakuten•Toronto, Canada
July 2024 – Present
Backend services for financial products platform processing millions of transactions monthly
Eliminated 100+ daily processing failures→ 99.9% reliability
Reduced deployment cycle from weeks to hours→ Feature flags & A/B testing
Validated 10M+ records during card migration→ Zero data loss
Optimized Lambda handlers for 500K+ daily events→ <100ms p95 latency
Improved codebase maintainability→ 35% fewer bugs
Node.jsJavaSpring BootTypeScriptPostgreSQLKafkaRedisAWSKubernetesDatadog
Senior Software Engineer
Guhuza•Toronto, Canada
November 2021 – July 2024
Backend architecture for AI-powered SaaS platform scaling to 100K+ active users
Architected event-driven microservices with Kafka→ 60% throughput gain
Built subscription engine with pricing tiers→ 40% LTV increase
Integrated Stripe with idempotent webhooks→ <1% payment failures
Optimized MySQL queries and Redis caching→ 45% faster responses
Deployed on Azure Kubernetes Service→ 99.95% uptime
Node.jsNestJSTypeScriptMySQLKafkaRedisReactAzureKubernetesStripe
Full Stack Developer
Omadatek•Toronto, Canada
August 2020 – November 2021
Full-stack applications for field service management serving 10K+ daily users
Built admin portals with React and GraphQL→ 30% faster workflows
Developed React Native mobile app→ Real-time GPS tracking
Designed Node.js APIs with MongoDB→ RESTful & GraphQL
Optimized GraphQL resolvers→ 40% response time cut
ReactReact NativeNode.jsGraphQLMongoDBAWSDocker
Software Developer
ITGlance•Kathmandu, Nepal
January 2017 – August 2018
Enterprise web applications with Java backend and Angular frontend
Built Spring Boot REST APIs→ User management & reporting
Designed MySQL schemas→ Complex query optimization
Implemented Spring Security→ Role-based access control
JavaSpring BootAngularMySQLREST APIs
Open to exciting opportunities in backend engineering and distributed systems