oshank@backend:~$
whoami
Staff Software Engineer · Go · Distributed Systems
oshank@backend:~$
cat about.txt
I'm a seasoned Golang developer with 10+ years of expertise in backend
development and distributed systems. I build robust, secure, and scalable
services that adhere to SOLID principles.
oshank@backend:~$
ls skills/
backend/ databases/ messaging/ infra/ observability/
backend: Golang, Microservices, gRPC, REST
databases: MySQL, PostgreSQL, CosmosDB, Redis, ClickHouse
messaging: Kafka, NSQ, Redis Queue, MQTT
infra: Docker, Kubernetes, Terraform, Ansible, Azure
observability: Prometheus, Grafana
oshank@backend:~$
ls opensource/
go-chassis — cloud-native Go application framework
GlusterD2 — co-developed distributed transaction framework ensuring reliable action orchestration across GlusterFS cluster
oshank@backend:~$
history
[May 2024 → Present · 1 yr 9 mos] Staff Software Engineer @ Walmart Global Tech
→ Architecting high-performance asset optimization systems at the edge
→ Optimized cloud infrastructure costs by $100K+ annually by migrating legacy VM-based deployments to Kubernetes
→ Transformed asset optimization into a multi-tenant system with complete data isolation, enabling chargeback across multiple international markets
→ Driving technical decisions for asset optimizaton platform scalability
[Nov 2021 → May 2024 · 2 yrs 7 mos] Senior Software Engineer @ Walmart Global Tech
→ Led scaling effort of optimization pipeline to handle over 500 million assets
→ Developed robust Redis-based job queueing system handling 200,000+ jobs/minute
→ Played crucial role in improving Core Web Vitals and user experience
→ Implemented regression tests using Ginkgo framework for reliable releases
→ Automated deployment processes using Concord and Ansible
[Apr 2019 → Nov 2021 · 2 yrs 8 mos] SDE-3 @ GoJek
→ Designed APIs for GoFood Merchant Order System with real-time updates
→ Migrated from polling to MQTT-based message broker for faster communication
→ Architected proximity-based order preparation system
→ Built compensation system for merchant order cancellations
→ Developed highly available background workers with Redis Sentinel
→ Automated infrastructure using Terraform and Chef
[Jul 2018 → Apr 2019 · 11 mos] Software Engineer @ Red Hat
→ Contributed to GlusterD2 re-implementation for better consistency and scalability
→ Developed transaction framework for distributed actions across Gluster storage pool
→ Enhanced volume management and cluster management operations
[Jan 2018 → Jul 2018 · 7 mos] Software Engineer @ I.AM+ Electronics India Ltd
→ Developed Omega API Gateway as Layer 7 entry point
→ Implemented routing logic for backend service
→ Integrated Redis-based rate limiting for API management
[Oct 2015 → Dec 2017 · 2 yrs 3 mos] Software Engineer @ Wipro (Client: Huawei)
→ Contributed to go-chassis microservice framework development
→ Implemented instrumentation and observability features
→ Developed E2E testing using Ginkgo and Gomega frameworks
→ Created demo services showcasing go-chassis capabilities
oshank@backend:~$
cat education.md
B.Tech — Electronics and Communication Engineering
West Bengal University of Technology
DGPA: 9.0/10
oshank@backend:~$
cat contact.txt
oshank_kumar_go_dev.pdf [100%]
oshank@backend:~$
exit
connection closed. system stable.