Sumit Das

Software Engineer

Bengaluru, Karnataka, India12 yrs 10 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

10+ years of software development experience.
Expertise in full stack development and microservices.
Proven ability to learn and implement new technologies.

Stackforce AI infers this person is a Fullstack Software Engineer with expertise in Microservices and Cloud Solutions.

Contact

sumit.das@walmart.com LinkedIn

Skills

Core Skills

MicroservicesApi DevelopmentData SecurityCloud ComputingPlatform DevelopmentDeploymentIntegration

Other Skills

Proxy GatewayAuthentication ProtocolsMetrics SystemsConnection PoolsRouting RulesAPI MigrationDevelopment AutomationRate LimitingSecurity MitigationCode QualityPerformance TestingCloud DeploymentNetwork VisibilityUI DevelopmentL3 Support

About

10+ years software development experience into java, microservice, CI/CD, agile, TDD, BDD having exposure to cloud. - Worked as an individual contributor - Have Full Stack Development expertise - Proven record of learn and implement new tech stack - Have experience in designing distributed scalable & secure system

Experience

12 yrs 10 mos

Total Experience

2 yrs 6 mos

Average Tenure

4 yrs 11 mos

Current Experience

Walmart global tech india

2 roles

Staff Software Engineer

Promoted

Oct 2024 – Present · 1 yr 8 mos · On-site

Senior Software Engineer

Jul 2021 – Oct 2024 · 3 yrs 3 mos · On-site

Working as a developer contributing in below aspects
Developing and implementing new policies in Proxy Gateway, including various authentication protocols.
Designing and establishing comprehensive metrics systems for observability and monitoring.
Engineering highly configurable connection pools serving over 3000 backend applications.
Enhancing routing rules with dynamic capabilities to determine appropriate backend endpoints for REST calls.
Migrating API-Proxy from Java 8/CentOS to Java 17/Ubuntu without impacting live traffic for 3000+ applications.
Automating development processes for creating new API-Proxy clusters, eliminating all manual tasks.
Implementing centralized rate limiting using Redis Lua scripts, configurable based on multiple criteria.
Automating certificate installation and renewal processes, resulting in significant time savings.
Identifying and mitigating security issues to ensure robust protection.
Maintaining high code quality standards and assisting team members.
Designing performance test suites for holiday season stress testing.
Creating multiple components in OneOps for streamlined cloud deployment.
Implementing L3af solutions for comprehensive end-to-end network visibility.
Developing various UI components for the Proxy Gateway.
Providing extensive L3 support to over 500 internal clients, addressing issues and clarifying doubts.

Proxy GatewayAuthentication ProtocolsMetrics SystemsConnection PoolsRouting RulesAPI Migration+11

Jpmorgan chase & co.

2 roles

Senior Associate

Promoted

Feb 2020 – Jul 2021 · 1 yr 5 mos

Associate

Apr 2018 – Jan 2020 · 1 yr 9 mos

Worked with platform team created common platform across different micro service helped different teams to build microservices following more or less same principal
Developed reusable library on top of spring for easy kafka and cassandra connectivity
Contributed a lot for developing micro serivices for audit and journaling
Developed interfaces for encrypting and securing data
Contributed in developing a micro service 'dead letter service' which deals with different kind of exceptions raised by system
Helped teams to build reusable and informative dashboards using graphana and prometheus
Contributed common payment store handling distributed transaction using cassandra over rest
Contributed in implementing cache around payment store using Apache Geode/Pivotal Gemfire
Contributed in developing performance script for kafka and rest call
Contributed to create test framework
Contributed in developing microservice which maps different fields from protobuf payment into json object
Developed tools using control-m for distributed scheduling
Helped team delivering features as and when required ..

MicroservicesReusable LibrariesData EncryptionDead Letter ServiceDashboardsDistributed Transactions+4

Mavenir

Member Of Technical Staff III (R&D)

Jul 2017 – Mar 2018 · 8 mos · Bengaluru Area, India

Worked on developing a product called Mavenir NFV Solution which aims to provide PAAS (Platform as a service) features by virtualizing network and hardware resources built on top of Vmware and Openstack. This solution also helps to manage scaling of the application by monitoring application service metrics, health and hardware resources.
Technology Stack
1. Spring MVC, Spring Core, Hibernate, JPA
2. Cassandra, Influxdb
3. Confd
4. Openstack, Vmware

NFV SolutionPaaSSpring MVCCassandraOpenStackVMware+2

Mahindra comviva

2 roles

Senior Software Engineer

Promoted

Jul 2015 – Jun 2017 · 1 yr 11 mos

Working on a fast track development , implementing solution for mobile Money based on micro service architecture.

Software Engineer

Jul 2013 – Jun 2015 · 1 yr 11 mos

Project Name | payPLUS :: Worked on deployment,production handling, ant build, hudson integration, Tomcat Hardening, PCI DSS activities, Centralized Logging
Project Name | EIG :: Involved in development and integration with third parties, issues fixing

DeploymentProduction HandlingBuild AutomationIntegrationCentralized Logging