Kalyan Sambhana

Director of Engineering

Hyderabad, Telangana, India4 yrs 3 mos experience

Key Highlights

Expert in building secure authentication systems.
Proven experience in fintech wallet infrastructure.
Strong background in distributed systems and data migrations.

Stackforce AI infers this person is a Fintech Backend Developer with expertise in authentication and wallet systems.

Contact

smnvkalyan@gmail.com LinkedIn

Skills

Core Skills

AuthenticationDistributed SystemsCorporate Investment BankingAndroid Development

Other Skills

AIMLActivitiCC (Programming Language)C++Google FirebaseHaskellJavaKubernetesNode.jsOAuth standardsOraclePerlPivotal GemfireProgramming

Experience

4 yrs 3 mos

Total Experience

1 yr 7 mos

Average Tenure

1 yr

Current Experience

Browserstack

Tech Lead

May 2025 – Present · 1 yr · Remote

Paypay india

SDE3

Dec 2024 – Apr 2025 · 4 mos · Gurugram, Haryana, India · On-site

After relocating from Tokyo to Gurugram, I’ve continued my role in the Wallet team at PayPay.

Paypay corporation

2 roles

SDE 3

Promoted

Jun 2022 – Dec 2024 · 2 yrs 6 mos

At PayPay, I worked on core services related to user identity, authentication, authorization, and wallet infrastructure.
In the UserModule team, I focused on designing secure auth systems, working with OAuth standards, Redis, and access control frameworks. I also contributed to projects involving policy-based access and large-scale migrations.
Later, in the Wallet team, I helped build and maintain systems that manage user balances, merchant accounts, and payment flows. I worked on projects involving distributed systems, data migrations, and automation for financial operations.

user identityauthenticationauthorizationwallet infrastructureOAuth standardsRedis+6

SDE 2

Aug 2021 – Jun 2022 · 10 mos

Jpmorgan chase & co.

2 roles

Software Associate

Feb 2021 – Jul 2021 · 5 mos · Bengaluru, Karnataka, India

Designed and developed a new version of existing project (Posting & Balance Service) with distributed caching to serve account balances faster.
Simplified existing account balance calculation logic using DS like TreeMap, HashMap etc.,
Experimented various cache policies & region attributes in Pivotal Gemfire.
To scale application performance, configured Partition region model and implemented Write-through cache policy with Oracle, as a backup which helps us in disaster recovery.
Performed Functional/Non-Functional testing in staging environments.

distributed cachingaccount balance calculationcache policiesPivotal GemfireOracleDistributed Systems

Software Engineer Programme

Jul 2018 – Jan 2021 · 2 yrs 6 mos · Bengaluru, Karnataka, India

Acquired Domain knowledge in Corporate Investment Banking Areas such as Virtual Account Management, Account and Balance Services, Sweeps.
Designed and implemented term deposits workflow, sweep back value orchestrator, reconciliation of downstream data ingestion, virtual transaction account closure.
Developed various tools for UAT/QA & internal teams for testing applications.
Supported migration of application from Virtual Service Infrastructure to Gaia Kubernetes platform.
Worked with Functional & Non-Functional testing teams efficiently.
Extended active support in case of any production issue.

domain knowledge in Corporate Investment Bankingterm deposits workflowdata ingestionKubernetesCorporate Investment Banking

Sparsh trust

Android Developer

Mar 2017 – May 2017 · 2 mos

Designed the layout for event booking module and implemented the same.
Implemented search functionality using elastic search and used Google Firebase for storage.
Developed news feed screen to broadcast the NGO latest announcements.
Completed internship at Gold Level.

event booking modulesearch functionalityGoogle FirebaseAndroid Development