Rajan Sharma

Software Engineer

Bengaluru, Karnataka, India3 yrs experience

Most Likely To Switch

Key Highlights

Achieved 94% improvement in payment processing latency.
Built Kubernetes Operator for volume backup ensuring data reliability.
Migrated UPI gateways to microservice architecture for scalability.

Stackforce AI infers this person is a Fintech Backend Engineer with expertise in microservices and cloud technologies.

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Skills

Core Skills

Back-end Web DevelopmentGoogle Cloud Platform (gcp)KubernetesGo (programming Language)Sqs

Other Skills

AlgorithmsBootstrapC (Programming Language)C++Cascading Style Sheets (CSS)Competitive ProgrammingData StructuresDockerExpress.jsGitHTML5HelmJavaJavaScriptKafka

About

Codechef 6 star ( 2231 ) | Leetcode Guardian (2230) | CodeForces Expert | Hackerrank 6 star | ICPC Amritapuri 2020 Regionalist | C++ | Golang | Kubernetes | Ex-Razorpay | Ex-Infracloud | GoogleTwitter: https://x.com/Raja_n02I'm a Software Engineer who is passionate about coding and exploring new things. I'm always up for helping others learn and grow.During my time at Razorpay (Mar 2022 - May 2024) , I contributed to moving from monolithic architecture to a microservice based architecture by building a microservice for processing UPI payments. This service was responsible for processing INR 40000 Cr monthly.During my time at Infracloud (May 2024 - Jan 2025), I gained hands-on experience with Kubernetes, working on a variety of resources. I successfully packaged a managed OpenStack product by Platform9 into a virtual appliance using VMware vSphere Client.

Experience

3 yrs

Total Experience

1 yr

Average Tenure

1 yr 4 mos

Current Experience

Google

Software Engineer

Feb 2025 – Present · 1 yr 4 mos · Bengaluru · On-site

C++Back-End Web DevelopmentGoogle Cloud Platform (GCP)

Infracloud technologies

Software Engineer

May 2024 – Jan 2025 · 8 mos · Remote

Built a community edition virtual appliance for platform9 cloud-director using VMware vSphere client.
Optimized appliance size from 23GB to 7GB by zeroing out disk memory to allow compression.
Built a Controller using client-go to automatically create service and ingress on creation of deployment.
Developed a Kubernetes Operator for volume backup using Kubebuilder, ensuring data backup.
Implemented a Validation Webhook to alert on update in pod labels being used in network policies.

Go (Programming Language)KubernetesOperator DevelopmentVirtualizationVMware vSphereTeamCity+4

Razorpay

2 roles

Software Engineer

May 2023 – May 2024 · 1 yr

Bypassed monolithic API service for payment Status and Authorization to UPI Service(Golang Microservice),
achieving a remarkable 94% improvement in P95 latency from 600ms to 35ms, resulting Razorpay checkout
reflect payment status faster than the PSP apps(GPay, Paytm).
Integrated AWS SQS Go SDK for asynchronous message processing to decouple high latency gateway calls.
Implemented parallel SQS processing, enabling a single consumer pod to handle 10x messages concurrently.
Empowered UPI microservice with a K8s worker to leverage outbox pattern for reliable event processing.
Integrated Go SDKs for merchant webhooks and pricing calculation reducing latency by 1200ms.
Benchmarked E2E UPI payment flow at 2000TPS using Grafana K6, unveiling performance optimizations.

SQSPrometheusGo (Programming Language)PHPRedisKafka+1

SDE Intern

Mar 2022 – May 2023 · 1 yr 2 mos

Migrated 7 UPI gateways to enable Microservice-based architecture for enhanced scalability.
Boosted UPI service efficiency by buliding Cache Layer powered by the Go Redis Universal Client.
Implemented Automated Java Test Suites to cover the E2E UPI flow on PR merges.
Slashed 95% Monolithic API Database reads and writes on UPI table to Microservice Database.

Go (Programming Language)Protocol BuffersPHPSpinnakerJava